From 8c9ce606a60e4a0cb447bdc082ce383b96b227b4 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 25 May 2012 16:11:09 -0400 Subject: xen/blkback: Copy id field when doing BLKIF_DISCARD. We weren't copying the id field so when we sent the response back to the frontend (especially with a 64-bit host and 32-bit guest), we ended up using a random value. This lead to the frontend crashing as it would try to pass to __blk_end_request_all a NULL 'struct request' (b/c it would use the 'id' to find the proper 'struct request' in its shadow array) and end up crashing: BUG: unable to handle kernel NULL pointer dereference at 000000e4 IP: [] __blk_end_request_all+0xc/0x40 .. snip.. EIP is at __blk_end_request_all+0xc/0x40 .. snip.. [] blkif_interrupt+0x172/0x330 [xen_blkfront] This fixes the bug by passing in the proper id for the response. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=824641 CC: stable@kernel.org Tested-by: William Dauchy Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/common.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 773cf27dc23f..9ad3b5ec1dc1 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -257,6 +257,7 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst, break; case BLKIF_OP_DISCARD: dst->u.discard.flag = src->u.discard.flag; + dst->u.discard.id = src->u.discard.id; dst->u.discard.sector_number = src->u.discard.sector_number; dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; @@ -287,6 +288,7 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst, break; case BLKIF_OP_DISCARD: dst->u.discard.flag = src->u.discard.flag; + dst->u.discard.id = src->u.discard.id; dst->u.discard.sector_number = src->u.discard.sector_number; dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; -- cgit v1.2.3 From a3beb74261f26142019847128b2441b0301797ac Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 10:31:58 +0800 Subject: regulator: ab3100: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab3100.c | 50 +++++++++++++--------------------------------- 1 file changed, 14 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 03f4d9c604ec..b088b6c228c8 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -45,9 +45,6 @@ * @regreg: regulator register number in the AB3100 * @fixed_voltage: a fixed voltage for this regulator, if this * 0 the voltages array is used instead. - * @typ_voltages: an array of available typical voltages for - * this regulator - * @voltages_len: length of the array of available voltages */ struct ab3100_regulator { struct regulator_dev *rdev; @@ -55,8 +52,6 @@ struct ab3100_regulator { struct ab3100_platform_data *plfdata; u8 regreg; int fixed_voltage; - int const *typ_voltages; - u8 voltages_len; }; /* The order in which registers are initialized */ @@ -80,7 +75,7 @@ static const u8 ab3100_reg_init_order[AB3100_NUM_REGULATORS+2] = { #define LDO_C_VOLTAGE 2650000 #define LDO_D_VOLTAGE 2650000 -static const int ldo_e_buck_typ_voltages[] = { +static const unsigned int ldo_e_buck_typ_voltages[] = { 1800000, 1400000, 1300000, @@ -90,7 +85,7 @@ static const int ldo_e_buck_typ_voltages[] = { 900000, }; -static const int ldo_f_typ_voltages[] = { +static const unsigned int ldo_f_typ_voltages[] = { 1800000, 1400000, 1300000, @@ -101,21 +96,21 @@ static const int ldo_f_typ_voltages[] = { 2650000, }; -static const int ldo_g_typ_voltages[] = { +static const unsigned int ldo_g_typ_voltages[] = { 2850000, 2750000, 1800000, 1500000, }; -static const int ldo_h_typ_voltages[] = { +static const unsigned int ldo_h_typ_voltages[] = { 2750000, 1800000, 1500000, 1200000, }; -static const int ldo_k_typ_voltages[] = { +static const unsigned int ldo_k_typ_voltages[] = { 2750000, 1800000, }; @@ -138,28 +133,18 @@ ab3100_regulators[AB3100_NUM_REGULATORS] = { }, { .regreg = AB3100_LDO_E, - .typ_voltages = ldo_e_buck_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_e_buck_typ_voltages), }, { .regreg = AB3100_LDO_F, - .typ_voltages = ldo_f_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_f_typ_voltages), }, { .regreg = AB3100_LDO_G, - .typ_voltages = ldo_g_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_g_typ_voltages), }, { .regreg = AB3100_LDO_H, - .typ_voltages = ldo_h_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_h_typ_voltages), }, { .regreg = AB3100_LDO_K, - .typ_voltages = ldo_k_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_k_typ_voltages), }, { .regreg = AB3100_LDO_EXT, @@ -167,8 +152,6 @@ ab3100_regulators[AB3100_NUM_REGULATORS] = { }, { .regreg = AB3100_BUCK, - .typ_voltages = ldo_e_buck_typ_voltages, - .voltages_len = ARRAY_SIZE(ldo_e_buck_typ_voltages), }, }; @@ -257,16 +240,6 @@ static int ab3100_is_enabled_regulator(struct regulator_dev *reg) return regval & AB3100_REG_ON_MASK; } -static int ab3100_list_voltage_regulator(struct regulator_dev *reg, - unsigned selector) -{ - struct ab3100_regulator *abreg = reg->reg_data; - - if (selector >= abreg->voltages_len) - return -EINVAL; - return abreg->typ_voltages[selector]; -} - static int ab3100_get_voltage_regulator(struct regulator_dev *reg) { struct ab3100_regulator *abreg = reg->reg_data; @@ -294,14 +267,14 @@ static int ab3100_get_voltage_regulator(struct regulator_dev *reg) regval &= 0xE0; regval >>= 5; - if (regval >= abreg->voltages_len) { + if (regval >= reg->desc->n_voltages) { dev_err(®->dev, "regulator register %02x contains an illegal voltage setting\n", abreg->regreg); return -EINVAL; } - return abreg->typ_voltages[regval]; + return reg->desc->volt_table[regval]; } static int ab3100_set_voltage_regulator_sel(struct regulator_dev *reg, @@ -423,7 +396,7 @@ static struct regulator_ops regulator_ops_variable = { .is_enabled = ab3100_is_enabled_regulator, .get_voltage = ab3100_get_voltage_regulator, .set_voltage_sel = ab3100_set_voltage_regulator_sel, - .list_voltage = ab3100_list_voltage_regulator, + .list_voltage = regulator_list_voltage_table, .enable_time = ab3100_enable_time_regulator, }; @@ -434,7 +407,7 @@ static struct regulator_ops regulator_ops_variable_sleepable = { .get_voltage = ab3100_get_voltage_regulator, .set_voltage_sel = ab3100_set_voltage_regulator_sel, .set_suspend_voltage = ab3100_set_suspend_voltage_regulator, - .list_voltage = ab3100_list_voltage_regulator, + .list_voltage = regulator_list_voltage_table, .enable_time = ab3100_enable_time_regulator, }; @@ -479,6 +452,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .id = AB3100_LDO_E, .ops = ®ulator_ops_variable_sleepable, .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages), + .volt_table = ldo_e_buck_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -487,6 +461,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .id = AB3100_LDO_F, .ops = ®ulator_ops_variable, .n_voltages = ARRAY_SIZE(ldo_f_typ_voltages), + .volt_table = ldo_f_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -495,6 +470,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .id = AB3100_LDO_G, .ops = ®ulator_ops_variable, .n_voltages = ARRAY_SIZE(ldo_g_typ_voltages), + .volt_table = ldo_g_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -503,6 +479,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .id = AB3100_LDO_H, .ops = ®ulator_ops_variable, .n_voltages = ARRAY_SIZE(ldo_h_typ_voltages), + .volt_table = ldo_h_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -511,6 +488,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .id = AB3100_LDO_K, .ops = ®ulator_ops_variable, .n_voltages = ARRAY_SIZE(ldo_k_typ_voltages), + .volt_table = ldo_k_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, -- cgit v1.2.3 From ec1cc4d9da39b58764fdb6f3d1aebcfe709a688f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 10:33:35 +0800 Subject: regulator: ab8500: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 64 +++++++++++++++++----------------------------- 1 file changed, 24 insertions(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index e1b8c54ace5a..da883e661b38 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -40,8 +40,6 @@ * @voltage_bank: bank to control regulator voltage * @voltage_reg: register to control regulator voltage * @voltage_mask: mask to control regulator voltage - * @voltages: supported voltage table - * @voltages_len: number of supported voltages for the regulator * @delay: startup/set voltage delay in us */ struct ab8500_regulator_info { @@ -58,13 +56,11 @@ struct ab8500_regulator_info { u8 voltage_bank; u8 voltage_reg; u8 voltage_mask; - int const *voltages; - int voltages_len; unsigned int delay; }; /* voltage tables for the vauxn/vintcore supplies */ -static const int ldo_vauxn_voltages[] = { +static const unsigned int ldo_vauxn_voltages[] = { 1100000, 1200000, 1300000, @@ -83,7 +79,7 @@ static const int ldo_vauxn_voltages[] = { 3300000, }; -static const int ldo_vaux3_voltages[] = { +static const unsigned int ldo_vaux3_voltages[] = { 1200000, 1500000, 1800000, @@ -94,7 +90,7 @@ static const int ldo_vaux3_voltages[] = { 2910000, }; -static const int ldo_vintcore_voltages[] = { +static const unsigned int ldo_vintcore_voltages[] = { 1200000, 1225000, 1250000, @@ -185,25 +181,6 @@ static int ab8500_regulator_is_enabled(struct regulator_dev *rdev) return false; } -static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector) -{ - struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); - - if (info == NULL) { - dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); - return -EINVAL; - } - - /* return the uV for the fixed regulators */ - if (info->fixed_uV) - return info->fixed_uV; - - if (selector >= info->voltages_len) - return -EINVAL; - - return info->voltages[selector]; -} - static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev) { int ret, val; @@ -296,11 +273,24 @@ static struct regulator_ops ab8500_regulator_ops = { .is_enabled = ab8500_regulator_is_enabled, .get_voltage_sel = ab8500_regulator_get_voltage_sel, .set_voltage_sel = ab8500_regulator_set_voltage_sel, - .list_voltage = ab8500_list_voltage, + .list_voltage = regulator_list_voltage_table, .enable_time = ab8500_regulator_enable_time, .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; +static int ab8500_fixed_list_voltage(struct regulator_dev *rdev, + unsigned selector) +{ + struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); + + if (info == NULL) { + dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); + return -EINVAL; + } + + return info->fixed_uV; +} + static int ab8500_fixed_get_voltage(struct regulator_dev *rdev) { struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); @@ -318,7 +308,7 @@ static struct regulator_ops ab8500_regulator_fixed_ops = { .disable = ab8500_regulator_disable, .is_enabled = ab8500_regulator_is_enabled, .get_voltage = ab8500_fixed_get_voltage, - .list_voltage = ab8500_list_voltage, + .list_voltage = ab8500_fixed_list_voltage, .enable_time = ab8500_regulator_enable_time, .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; @@ -329,7 +319,7 @@ static struct ab8500_regulator_info * Variable Voltage Regulators * name, min mV, max mV, * update bank, reg, mask, enable val - * volt bank, reg, mask, table, table length + * volt bank, reg, mask */ [AB8500_LDO_AUX1] = { .desc = { @@ -339,6 +329,7 @@ static struct ab8500_regulator_info .id = AB8500_LDO_AUX1, .owner = THIS_MODULE, .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), + .volt_table = ldo_vauxn_voltages, }, .min_uV = 1100000, .max_uV = 3300000, @@ -349,8 +340,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x04, .voltage_reg = 0x1f, .voltage_mask = 0x0f, - .voltages = ldo_vauxn_voltages, - .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages), }, [AB8500_LDO_AUX2] = { .desc = { @@ -360,6 +349,7 @@ static struct ab8500_regulator_info .id = AB8500_LDO_AUX2, .owner = THIS_MODULE, .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), + .volt_table = ldo_vauxn_voltages, }, .min_uV = 1100000, .max_uV = 3300000, @@ -370,8 +360,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x04, .voltage_reg = 0x20, .voltage_mask = 0x0f, - .voltages = ldo_vauxn_voltages, - .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages), }, [AB8500_LDO_AUX3] = { .desc = { @@ -381,6 +369,7 @@ static struct ab8500_regulator_info .id = AB8500_LDO_AUX3, .owner = THIS_MODULE, .n_voltages = ARRAY_SIZE(ldo_vaux3_voltages), + .volt_table = ldo_vaux3_voltages, }, .min_uV = 1100000, .max_uV = 3300000, @@ -391,8 +380,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x04, .voltage_reg = 0x21, .voltage_mask = 0x07, - .voltages = ldo_vaux3_voltages, - .voltages_len = ARRAY_SIZE(ldo_vaux3_voltages), }, [AB8500_LDO_INTCORE] = { .desc = { @@ -402,6 +389,7 @@ static struct ab8500_regulator_info .id = AB8500_LDO_INTCORE, .owner = THIS_MODULE, .n_voltages = ARRAY_SIZE(ldo_vintcore_voltages), + .volt_table = ldo_vintcore_voltages, }, .min_uV = 1100000, .max_uV = 3300000, @@ -412,8 +400,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x80, .voltage_mask = 0x38, - .voltages = ldo_vintcore_voltages, - .voltages_len = ARRAY_SIZE(ldo_vintcore_voltages), }, /* @@ -769,9 +755,7 @@ static __devinit int ab8500_regulator_register(struct platform_device *pdev, if (info->desc.id == AB8500_LDO_AUX3) { info->desc.n_voltages = ARRAY_SIZE(ldo_vauxn_voltages); - info->voltages = ldo_vauxn_voltages; - info->voltages_len = - ARRAY_SIZE(ldo_vauxn_voltages); + info->desc.volt_table = ldo_vauxn_voltages; info->voltage_mask = 0xf; } } -- cgit v1.2.3 From 4f73ccad5ca0ce25d0fd73cf3b65975e93a45ce4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 10:36:17 +0800 Subject: regulator: lp3972: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/lp3972.c | 102 ++++++++++++++++----------------------------- 1 file changed, 36 insertions(+), 66 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c index de073df7d344..3cdc755d9b22 100644 --- a/drivers/regulator/lp3972.c +++ b/drivers/regulator/lp3972.c @@ -74,54 +74,40 @@ struct lp3972 { #define LP3972_OVER2_LDO4_EN BIT(4) #define LP3972_OVER1_S_EN BIT(2) -static const int ldo1_voltage_map[] = { - 1700, 1725, 1750, 1775, 1800, 1825, 1850, 1875, - 1900, 1925, 1950, 1975, 2000, +static const unsigned int ldo1_voltage_map[] = { + 1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000, + 1900000, 1925000, 1950000, 1975000, 2000000, }; -static const int ldo23_voltage_map[] = { - 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, - 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300, +static const unsigned int ldo23_voltage_map[] = { + 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, + 2600000, 2700000, 2800000, 2900000, 3000000, 3100000, 3200000, 3300000, }; -static const int ldo4_voltage_map[] = { - 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350, - 1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300, +static const unsigned int ldo4_voltage_map[] = { + 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, + 1400000, 1500000, 1800000, 1900000, 2500000, 2800000, 3000000, 3300000, }; -static const int ldo5_voltage_map[] = { - 0, 0, 0, 0, 0, 850, 875, 900, - 925, 950, 975, 1000, 1025, 1050, 1075, 1100, - 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300, - 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500, +static const unsigned int ldo5_voltage_map[] = { + 0, 0, 0, 0, 0, 850000, 875000, 900000, + 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, + 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, + 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, }; -static const int buck1_voltage_map[] = { - 725, 750, 775, 800, 825, 850, 875, 900, - 925, 950, 975, 1000, 1025, 1050, 1075, 1100, - 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300, - 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500, +static const unsigned int buck1_voltage_map[] = { + 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, + 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, + 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, + 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, }; -static const int buck23_voltage_map[] = { - 0, 800, 850, 900, 950, 1000, 1050, 1100, - 1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500, - 1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800, - 3000, 3300, -}; - -static const int *ldo_voltage_map[] = { - ldo1_voltage_map, - ldo23_voltage_map, - ldo23_voltage_map, - ldo4_voltage_map, - ldo5_voltage_map, -}; - -static const int *buck_voltage_map[] = { - buck1_voltage_map, - buck23_voltage_map, - buck23_voltage_map, +static const unsigned int buck23_voltage_map[] = { + 0, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, + 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, + 1550000, 1600000, 1650000, 1700000, 1800000, 1900000, 2500000, 2800000, + 3000000, 3300000, }; static const int ldo_output_enable_mask[] = { @@ -160,7 +146,6 @@ static const int buck_base_addr[] = { LP3972_B3TV_REG, }; -#define LP3972_LDO_VOL_VALUE_MAP(x) (ldo_voltage_map[x]) #define LP3972_LDO_OUTPUT_ENABLE_MASK(x) (ldo_output_enable_mask[x]) #define LP3972_LDO_OUTPUT_ENABLE_REG(x) (ldo_output_enable_addr[x]) @@ -177,7 +162,6 @@ static const int buck_base_addr[] = { #define LP3972_LDO_VOL_MIN_IDX(x) (((x) == 4) ? 0x05 : 0x00) #define LP3972_LDO_VOL_MAX_IDX(x) ((x) ? (((x) == 4) ? 0x1f : 0x0f) : 0x0c) -#define LP3972_BUCK_VOL_VALUE_MAP(x) (buck_voltage_map[x]) #define LP3972_BUCK_VOL_ENABLE_REG(x) (buck_vol_enable_addr[x]) #define LP3972_BUCK_VOL1_REG(x) (buck_base_addr[x]) #define LP3972_BUCK_VOL_MASK 0x1f @@ -242,17 +226,6 @@ static int lp3972_set_bits(struct lp3972 *lp3972, u8 reg, u16 mask, u16 val) return ret; } -static int lp3972_ldo_list_voltage(struct regulator_dev *dev, unsigned index) -{ - int ldo = rdev_get_id(dev) - LP3972_LDO1; - - if (index < LP3972_LDO_VOL_MIN_IDX(ldo) || - index > LP3972_LDO_VOL_MAX_IDX(ldo)) - return -EINVAL; - - return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[index]; -} - static int lp3972_ldo_is_enabled(struct regulator_dev *dev) { struct lp3972 *lp3972 = rdev_get_drvdata(dev); @@ -294,7 +267,7 @@ static int lp3972_ldo_get_voltage(struct regulator_dev *dev) reg = lp3972_reg_read(lp3972, LP3972_LDO_VOL_CONTR_REG(ldo)); val = (reg >> LP3972_LDO_VOL_CONTR_SHIFT(ldo)) & mask; - return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[val]; + return dev->desc->volt_table[val]; } static int lp3972_ldo_set_voltage_sel(struct regulator_dev *dev, @@ -337,7 +310,7 @@ static int lp3972_ldo_set_voltage_sel(struct regulator_dev *dev, } static struct regulator_ops lp3972_ldo_ops = { - .list_voltage = lp3972_ldo_list_voltage, + .list_voltage = regulator_list_voltage_table, .is_enabled = lp3972_ldo_is_enabled, .enable = lp3972_ldo_enable, .disable = lp3972_ldo_disable, @@ -345,17 +318,6 @@ static struct regulator_ops lp3972_ldo_ops = { .set_voltage_sel = lp3972_ldo_set_voltage_sel, }; -static int lp3972_dcdc_list_voltage(struct regulator_dev *dev, unsigned index) -{ - int buck = rdev_get_id(dev) - LP3972_DCDC1; - - if (index < LP3972_BUCK_VOL_MIN_IDX(buck) || - index > LP3972_BUCK_VOL_MAX_IDX(buck)) - return -EINVAL; - - return 1000 * buck_voltage_map[buck][index]; -} - static int lp3972_dcdc_is_enabled(struct regulator_dev *dev) { struct lp3972 *lp3972 = rdev_get_drvdata(dev); @@ -401,7 +363,7 @@ static int lp3972_dcdc_get_voltage(struct regulator_dev *dev) reg = lp3972_reg_read(lp3972, LP3972_BUCK_VOL1_REG(buck)); reg &= LP3972_BUCK_VOL_MASK; if (reg <= LP3972_BUCK_VOL_MAX_IDX(buck)) - val = 1000 * buck_voltage_map[buck][reg]; + val = dev->desc->volt_table[reg]; else { val = 0; dev_warn(&dev->dev, "chip reported incorrect voltage value." @@ -436,7 +398,7 @@ static int lp3972_dcdc_set_voltage_sel(struct regulator_dev *dev, } static struct regulator_ops lp3972_dcdc_ops = { - .list_voltage = lp3972_dcdc_list_voltage, + .list_voltage = regulator_list_voltage_table, .is_enabled = lp3972_dcdc_is_enabled, .enable = lp3972_dcdc_enable, .disable = lp3972_dcdc_disable, @@ -450,6 +412,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_LDO1, .ops = &lp3972_ldo_ops, .n_voltages = ARRAY_SIZE(ldo1_voltage_map), + .volt_table = ldo1_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -458,6 +421,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_LDO2, .ops = &lp3972_ldo_ops, .n_voltages = ARRAY_SIZE(ldo23_voltage_map), + .volt_table = ldo23_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -466,6 +430,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_LDO3, .ops = &lp3972_ldo_ops, .n_voltages = ARRAY_SIZE(ldo23_voltage_map), + .volt_table = ldo23_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -474,6 +439,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_LDO4, .ops = &lp3972_ldo_ops, .n_voltages = ARRAY_SIZE(ldo4_voltage_map), + .volt_table = ldo4_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -482,6 +448,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_LDO5, .ops = &lp3972_ldo_ops, .n_voltages = ARRAY_SIZE(ldo5_voltage_map), + .volt_table = ldo5_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -490,6 +457,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_DCDC1, .ops = &lp3972_dcdc_ops, .n_voltages = ARRAY_SIZE(buck1_voltage_map), + .volt_table = buck1_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -498,6 +466,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_DCDC2, .ops = &lp3972_dcdc_ops, .n_voltages = ARRAY_SIZE(buck23_voltage_map), + .volt_table = buck23_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -506,6 +475,7 @@ static const struct regulator_desc regulators[] = { .id = LP3972_DCDC3, .ops = &lp3972_dcdc_ops, .n_voltages = ARRAY_SIZE(buck23_voltage_map), + .volt_table = buck23_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, -- cgit v1.2.3 From c55979b7bd78b8ee7999bcf5211bf0243260c675 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 10:37:33 +0800 Subject: regulator: tps6105x: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/tps6105x-regulator.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c index d840d8440a91..1378409efaec 100644 --- a/drivers/regulator/tps6105x-regulator.c +++ b/drivers/regulator/tps6105x-regulator.c @@ -20,7 +20,7 @@ #include #include -static const int tps6105x_voltages[] = { +static const unsigned int tps6105x_voltages[] = { 4500000, 5000000, 5250000, @@ -105,22 +105,13 @@ static int tps6105x_regulator_set_voltage_sel(struct regulator_dev *rdev, return 0; } -static int tps6105x_regulator_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector >= ARRAY_SIZE(tps6105x_voltages)) - return -EINVAL; - - return tps6105x_voltages[selector]; -} - static struct regulator_ops tps6105x_regulator_ops = { .enable = tps6105x_regulator_enable, .disable = tps6105x_regulator_disable, .is_enabled = tps6105x_regulator_is_enabled, .get_voltage_sel = tps6105x_regulator_get_voltage_sel, .set_voltage_sel = tps6105x_regulator_set_voltage_sel, - .list_voltage = tps6105x_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static const struct regulator_desc tps6105x_regulator_desc = { @@ -130,6 +121,7 @@ static const struct regulator_desc tps6105x_regulator_desc = { .id = 0, .owner = THIS_MODULE, .n_voltages = ARRAY_SIZE(tps6105x_voltages), + .volt_table = tps6105x_voltages, }; /* -- cgit v1.2.3 From 055917ac560a4185b75511b512f2db941b984672 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 10:39:12 +0800 Subject: regulator: tps6507x: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6507x-regulator.c | 100 ++++++++++++++------------------- 1 file changed, 43 insertions(+), 57 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index da38be1016aa..c771e1077cc1 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -43,50 +43,50 @@ /* Number of total regulators available */ #define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO) -/* Supported voltage values for regulators (in milliVolts) */ -static const u16 VDCDCx_VSEL_table[] = { - 725, 750, 775, 800, - 825, 850, 875, 900, - 925, 950, 975, 1000, - 1025, 1050, 1075, 1100, - 1125, 1150, 1175, 1200, - 1225, 1250, 1275, 1300, - 1325, 1350, 1375, 1400, - 1425, 1450, 1475, 1500, - 1550, 1600, 1650, 1700, - 1750, 1800, 1850, 1900, - 1950, 2000, 2050, 2100, - 2150, 2200, 2250, 2300, - 2350, 2400, 2450, 2500, - 2550, 2600, 2650, 2700, - 2750, 2800, 2850, 2900, - 3000, 3100, 3200, 3300, +/* Supported voltage values for regulators (in microVolts) */ +static const unsigned int VDCDCx_VSEL_table[] = { + 725000, 750000, 775000, 800000, + 825000, 850000, 875000, 900000, + 925000, 950000, 975000, 1000000, + 1025000, 1050000, 1075000, 1100000, + 1125000, 1150000, 1175000, 1200000, + 1225000, 1250000, 1275000, 1300000, + 1325000, 1350000, 1375000, 1400000, + 1425000, 1450000, 1475000, 1500000, + 1550000, 1600000, 1650000, 1700000, + 1750000, 1800000, 1850000, 1900000, + 1950000, 2000000, 2050000, 2100000, + 2150000, 2200000, 2250000, 2300000, + 2350000, 2400000, 2450000, 2500000, + 2550000, 2600000, 2650000, 2700000, + 2750000, 2800000, 2850000, 2900000, + 3000000, 3100000, 3200000, 3300000, }; -static const u16 LDO1_VSEL_table[] = { - 1000, 1100, 1200, 1250, - 1300, 1350, 1400, 1500, - 1600, 1800, 2500, 2750, - 2800, 3000, 3100, 3300, +static const unsigned int LDO1_VSEL_table[] = { + 1000000, 1100000, 1200000, 1250000, + 1300000, 1350000, 1400000, 1500000, + 1600000, 1800000, 2500000, 2750000, + 2800000, 3000000, 3100000, 3300000, }; -static const u16 LDO2_VSEL_table[] = { - 725, 750, 775, 800, - 825, 850, 875, 900, - 925, 950, 975, 1000, - 1025, 1050, 1075, 1100, - 1125, 1150, 1175, 1200, - 1225, 1250, 1275, 1300, - 1325, 1350, 1375, 1400, - 1425, 1450, 1475, 1500, - 1550, 1600, 1650, 1700, - 1750, 1800, 1850, 1900, - 1950, 2000, 2050, 2100, - 2150, 2200, 2250, 2300, - 2350, 2400, 2450, 2500, - 2550, 2600, 2650, 2700, - 2750, 2800, 2850, 2900, - 3000, 3100, 3200, 3300, +static const unsigned int LDO2_VSEL_table[] = { + 725000, 750000, 775000, 800000, + 825000, 850000, 875000, 900000, + 925000, 950000, 975000, 1000000, + 1025000, 1050000, 1075000, 1100000, + 1125000, 1150000, 1175000, 1200000, + 1225000, 1250000, 1275000, 1300000, + 1325000, 1350000, 1375000, 1400000, + 1425000, 1450000, 1475000, 1500000, + 1550000, 1600000, 1650000, 1700000, + 1750000, 1800000, 1850000, 1900000, + 1950000, 2000000, 2050000, 2100000, + 2150000, 2200000, 2250000, 2300000, + 2350000, 2400000, 2450000, 2500000, + 2550000, 2600000, 2650000, 2700000, + 2750000, 2800000, 2850000, 2900000, + 3000000, 3100000, 3200000, 3300000, }; struct tps_info { @@ -94,7 +94,7 @@ struct tps_info { unsigned min_uV; unsigned max_uV; u8 table_len; - const u16 *table; + const unsigned int *table; /* Does DCDC high or the low register defines output voltage? */ bool defdcdc_default; @@ -375,28 +375,13 @@ static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev, return tps6507x_pmic_reg_write(tps, reg, data); } -static int tps6507x_pmic_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct tps6507x_pmic *tps = rdev_get_drvdata(dev); - int rid = rdev_get_id(dev); - - if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2) - return -EINVAL; - - if (selector >= tps->info[rid]->table_len) - return -EINVAL; - else - return tps->info[rid]->table[selector] * 1000; -} - static struct regulator_ops tps6507x_pmic_ops = { .is_enabled = tps6507x_pmic_is_enabled, .enable = tps6507x_pmic_enable, .disable = tps6507x_pmic_disable, .get_voltage_sel = tps6507x_pmic_get_voltage_sel, .set_voltage_sel = tps6507x_pmic_set_voltage_sel, - .list_voltage = tps6507x_pmic_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static __devinit int tps6507x_pmic_probe(struct platform_device *pdev) @@ -449,6 +434,7 @@ static __devinit int tps6507x_pmic_probe(struct platform_device *pdev) tps->desc[i].name = info->name; tps->desc[i].id = i; tps->desc[i].n_voltages = info->table_len; + tps->desc[i].volt_table = info->table; tps->desc[i].ops = &tps6507x_pmic_ops; tps->desc[i].type = REGULATOR_VOLTAGE; tps->desc[i].owner = THIS_MODULE; -- cgit v1.2.3 From cad8d76e20eda5ccfcfbccdd711b91e053b4ab05 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 20 May 2012 13:30:28 +0800 Subject: regulator: lp3971: Use regulator_list_voltage_table() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/lp3971.c | 66 ++++++++++++++++------------------------------ 1 file changed, 23 insertions(+), 43 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 981bea9cb9d7..7c6e3b8ff484 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -65,11 +65,11 @@ static const int buck_base_addr[] = { #define LP3971_BUCK_TARGET_VOL1_REG(x) (buck_base_addr[x]) #define LP3971_BUCK_TARGET_VOL2_REG(x) (buck_base_addr[x]+1) -static const int buck_voltage_map[] = { - 0, 800, 850, 900, 950, 1000, 1050, 1100, - 1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500, - 1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800, - 3000, 3300, +static const unsigned int buck_voltage_map[] = { + 0, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, + 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, + 1550000, 1600000, 1650000, 1700000, 1800000, 1900000, 2500000, 2800000, + 3000000, 3300000, }; #define BUCK_TARGET_VOL_MASK 0x3f @@ -98,39 +98,19 @@ static const int buck_voltage_map[] = { #define LDO_VOL_CONTR_SHIFT(x) ((x & 1) << 2) #define LDO_VOL_CONTR_MASK 0x0f -static const int ldo45_voltage_map[] = { - 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350, - 1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300, +static const unsigned int ldo45_voltage_map[] = { + 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, + 1400000, 1500000, 1800000, 1900000, 2500000, 2800000, 3000000, 3300000, }; -static const int ldo123_voltage_map[] = { - 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, - 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300, +static const unsigned int ldo123_voltage_map[] = { + 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, + 2600000, 2700000, 2800000, 2900000, 3000000, 3100000, 3200000, 3300000, }; -static const int *ldo_voltage_map[] = { - ldo123_voltage_map, /* LDO1 */ - ldo123_voltage_map, /* LDO2 */ - ldo123_voltage_map, /* LDO3 */ - ldo45_voltage_map, /* LDO4 */ - ldo45_voltage_map, /* LDO5 */ -}; - -#define LDO_VOL_VALUE_MAP(x) (ldo_voltage_map[(x - LP3971_LDO1)]) - #define LDO_VOL_MIN_IDX 0x00 #define LDO_VOL_MAX_IDX 0x0f -static int lp3971_ldo_list_voltage(struct regulator_dev *dev, unsigned index) -{ - int ldo = rdev_get_id(dev) - LP3971_LDO1; - - if (index > LDO_VOL_MAX_IDX) - return -EINVAL; - - return 1000 * LDO_VOL_VALUE_MAP(ldo)[index]; -} - static int lp3971_ldo_is_enabled(struct regulator_dev *dev) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); @@ -169,7 +149,7 @@ static int lp3971_ldo_get_voltage(struct regulator_dev *dev) reg = lp3971_reg_read(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo)); val = (reg >> LDO_VOL_CONTR_SHIFT(ldo)) & LDO_VOL_CONTR_MASK; - return 1000 * LDO_VOL_VALUE_MAP(ldo)[val]; + return dev->desc->volt_table[val]; } static int lp3971_ldo_set_voltage_sel(struct regulator_dev *dev, @@ -184,7 +164,7 @@ static int lp3971_ldo_set_voltage_sel(struct regulator_dev *dev, } static struct regulator_ops lp3971_ldo_ops = { - .list_voltage = lp3971_ldo_list_voltage, + .list_voltage = regulator_list_voltage_table, .is_enabled = lp3971_ldo_is_enabled, .enable = lp3971_ldo_enable, .disable = lp3971_ldo_disable, @@ -192,14 +172,6 @@ static struct regulator_ops lp3971_ldo_ops = { .set_voltage_sel = lp3971_ldo_set_voltage_sel, }; -static int lp3971_dcdc_list_voltage(struct regulator_dev *dev, unsigned index) -{ - if (index < BUCK_TARGET_VOL_MIN_IDX || index > BUCK_TARGET_VOL_MAX_IDX) - return -EINVAL; - - return 1000 * buck_voltage_map[index]; -} - static int lp3971_dcdc_is_enabled(struct regulator_dev *dev) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); @@ -240,7 +212,7 @@ static int lp3971_dcdc_get_voltage(struct regulator_dev *dev) reg &= BUCK_TARGET_VOL_MASK; if (reg <= BUCK_TARGET_VOL_MAX_IDX) - val = 1000 * buck_voltage_map[reg]; + val = buck_voltage_map[reg]; else { val = 0; dev_warn(&dev->dev, "chip reported incorrect voltage value.\n"); @@ -273,7 +245,7 @@ static int lp3971_dcdc_set_voltage_sel(struct regulator_dev *dev, } static struct regulator_ops lp3971_dcdc_ops = { - .list_voltage = lp3971_dcdc_list_voltage, + .list_voltage = regulator_list_voltage_table, .is_enabled = lp3971_dcdc_is_enabled, .enable = lp3971_dcdc_enable, .disable = lp3971_dcdc_disable, @@ -287,6 +259,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_LDO1, .ops = &lp3971_ldo_ops, .n_voltages = ARRAY_SIZE(ldo123_voltage_map), + .volt_table = ldo123_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -295,6 +268,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_LDO2, .ops = &lp3971_ldo_ops, .n_voltages = ARRAY_SIZE(ldo123_voltage_map), + .volt_table = ldo123_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -303,6 +277,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_LDO3, .ops = &lp3971_ldo_ops, .n_voltages = ARRAY_SIZE(ldo123_voltage_map), + .volt_table = ldo123_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -311,6 +286,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_LDO4, .ops = &lp3971_ldo_ops, .n_voltages = ARRAY_SIZE(ldo45_voltage_map), + .volt_table = ldo45_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -319,6 +295,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_LDO5, .ops = &lp3971_ldo_ops, .n_voltages = ARRAY_SIZE(ldo45_voltage_map), + .volt_table = ldo45_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -327,6 +304,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_DCDC1, .ops = &lp3971_dcdc_ops, .n_voltages = ARRAY_SIZE(buck_voltage_map), + .volt_table = buck_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -335,6 +313,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_DCDC2, .ops = &lp3971_dcdc_ops, .n_voltages = ARRAY_SIZE(buck_voltage_map), + .volt_table = buck_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, @@ -343,6 +322,7 @@ static const struct regulator_desc regulators[] = { .id = LP3971_DCDC3, .ops = &lp3971_dcdc_ops, .n_voltages = ARRAY_SIZE(buck_voltage_map), + .volt_table = buck_voltage_map, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, -- cgit v1.2.3 From 6333e9ddf4787ec42cbb4cbb482168094e54b337 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 21 May 2012 09:39:08 +0800 Subject: regulator: ab8500: Let regulator core handle the case no delay for setting new voltage if regulator is off Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index da883e661b38..f15807449011 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -256,14 +256,7 @@ static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int new_sel) { struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); - int ret; - /* If the regulator isn't on, it won't take time here */ - ret = ab8500_regulator_is_enabled(rdev); - if (ret < 0) - return ret; - if (!ret) - return 0; return info->delay; } -- cgit v1.2.3 From b4ec87aedbdae602dbc232915ff5a8c1fad89b36 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 30 Apr 2012 21:00:10 +0100 Subject: regulator: wm8350: Convert to use core regmap vsel readback Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 75 +++++++++--------------------------- 1 file changed, 19 insertions(+), 56 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 94e550dc70b6..5ccab371b408 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -405,34 +405,6 @@ static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV, return 0; } -static int wm8350_dcdc_get_voltage_sel(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, dcdc = rdev_get_id(rdev); - - switch (dcdc) { - case WM8350_DCDC_1: - volt_reg = WM8350_DCDC1_CONTROL; - break; - case WM8350_DCDC_3: - volt_reg = WM8350_DCDC3_CONTROL; - break; - case WM8350_DCDC_4: - volt_reg = WM8350_DCDC4_CONTROL; - break; - case WM8350_DCDC_6: - volt_reg = WM8350_DCDC6_CONTROL; - break; - case WM8350_DCDC_2: - case WM8350_DCDC_5: - default: - return -EINVAL; - } - - /* all DCDCs have same mV bits */ - return wm8350_reg_read(wm8350, volt_reg) & WM8350_DC1_VSEL_MASK; -} - static int wm8350_dcdc_list_voltage(struct regulator_dev *rdev, unsigned selector) { @@ -805,32 +777,6 @@ static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV, return 0; } -static int wm8350_ldo_get_voltage_sel(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, ldo = rdev_get_id(rdev); - - switch (ldo) { - case WM8350_LDO_1: - volt_reg = WM8350_LDO1_CONTROL; - break; - case WM8350_LDO_2: - volt_reg = WM8350_LDO2_CONTROL; - break; - case WM8350_LDO_3: - volt_reg = WM8350_LDO3_CONTROL; - break; - case WM8350_LDO_4: - volt_reg = WM8350_LDO4_CONTROL; - break; - default: - return -EINVAL; - } - - /* all LDOs have same mV bits */ - return wm8350_reg_read(wm8350, volt_reg) & WM8350_LDO1_VSEL_MASK; -} - static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, unsigned selector) { @@ -1225,7 +1171,7 @@ static int wm8350_ldo_is_enabled(struct regulator_dev *rdev) static struct regulator_ops wm8350_dcdc_ops = { .set_voltage = wm8350_dcdc_set_voltage, - .get_voltage_sel = wm8350_dcdc_get_voltage_sel, + .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = wm8350_dcdc_list_voltage, .enable = wm8350_dcdc_enable, .disable = wm8350_dcdc_disable, @@ -1249,7 +1195,7 @@ static struct regulator_ops wm8350_dcdc2_5_ops = { static struct regulator_ops wm8350_ldo_ops = { .set_voltage = wm8350_ldo_set_voltage, - .get_voltage_sel = wm8350_ldo_get_voltage_sel, + .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = wm8350_ldo_list_voltage, .enable = wm8350_ldo_enable, .disable = wm8350_ldo_disable, @@ -1277,6 +1223,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC1, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .vsel_reg = WM8350_DCDC1_CONTROL, + .vsel_mask = WM8350_DC1_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1294,6 +1242,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC3, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .vsel_reg = WM8350_DCDC3_CONTROL, + .vsel_mask = WM8350_DC3_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1303,6 +1253,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC4, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .vsel_reg = WM8350_DCDC4_CONTROL, + .vsel_mask = WM8350_DC4_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1320,6 +1272,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC6, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .vsel_reg = WM8350_DCDC6_CONTROL, + .vsel_mask = WM8350_DC6_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1329,6 +1283,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO1, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO1_VSEL_MASK + 1, + .vsel_reg = WM8350_LDO1_CONTROL, + .vsel_mask = WM8350_LDO1_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1338,6 +1294,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO2, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO2_VSEL_MASK + 1, + .vsel_reg = WM8350_LDO2_CONTROL, + .vsel_mask = WM8350_LDO2_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1347,6 +1305,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO3, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO3_VSEL_MASK + 1, + .vsel_reg = WM8350_LDO3_CONTROL, + .vsel_mask = WM8350_LDO3_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1356,6 +1316,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO4, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO4_VSEL_MASK + 1, + .vsel_reg = WM8350_LDO4_CONTROL, + .vsel_mask = WM8350_LDO4_VSEL_MASK, .owner = THIS_MODULE, }, { @@ -1429,6 +1391,7 @@ static int wm8350_regulator_probe(struct platform_device *pdev) config.dev = &pdev->dev; config.init_data = pdev->dev.platform_data; config.driver_data = dev_get_drvdata(&pdev->dev); + config.regmap = wm8350->regmap; /* register regulator */ rdev = regulator_register(&wm8350_reg[pdev->id], &config); -- cgit v1.2.3 From a540f682860b3ce11fbfd36118bf64d5d4152bc1 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 30 Apr 2012 21:08:59 +0100 Subject: regulator: wm8350: Convert to core regmap-based enable operations Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 121 +++++++++-------------------------- 1 file changed, 29 insertions(+), 92 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 5ccab371b408..12ecaec770a1 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -905,63 +905,6 @@ int wm8350_dcdc25_set_mode(struct wm8350 *wm8350, int dcdc, u16 mode, } EXPORT_SYMBOL_GPL(wm8350_dcdc25_set_mode); -static int wm8350_dcdc_enable(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int dcdc = rdev_get_id(rdev); - u16 shift; - - if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6) - return -EINVAL; - - shift = dcdc - WM8350_DCDC_1; - wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift); - return 0; -} - -static int wm8350_dcdc_disable(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int dcdc = rdev_get_id(rdev); - u16 shift; - - if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6) - return -EINVAL; - - shift = dcdc - WM8350_DCDC_1; - wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift); - - return 0; -} - -static int wm8350_ldo_enable(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int ldo = rdev_get_id(rdev); - u16 shift; - - if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4) - return -EINVAL; - - shift = (ldo - WM8350_LDO_1) + 8; - wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift); - return 0; -} - -static int wm8350_ldo_disable(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int ldo = rdev_get_id(rdev); - u16 shift; - - if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4) - return -EINVAL; - - shift = (ldo - WM8350_LDO_1) + 8; - wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift); - return 0; -} - static int force_continuous_enable(struct wm8350 *wm8350, int dcdc, int enable) { int reg = 0, ret; @@ -1143,42 +1086,16 @@ static unsigned int wm8350_dcdc_get_optimum_mode(struct regulator_dev *rdev, return mode; } -static int wm8350_dcdc_is_enabled(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int dcdc = rdev_get_id(rdev), shift; - - if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6) - return -EINVAL; - - shift = dcdc - WM8350_DCDC_1; - return wm8350_reg_read(wm8350, WM8350_DCDC_LDO_REQUESTED) - & (1 << shift); -} - -static int wm8350_ldo_is_enabled(struct regulator_dev *rdev) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int ldo = rdev_get_id(rdev), shift; - - if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4) - return -EINVAL; - - shift = (ldo - WM8350_LDO_1) + 8; - return wm8350_reg_read(wm8350, WM8350_DCDC_LDO_REQUESTED) - & (1 << shift); -} - static struct regulator_ops wm8350_dcdc_ops = { .set_voltage = wm8350_dcdc_set_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = wm8350_dcdc_list_voltage, - .enable = wm8350_dcdc_enable, - .disable = wm8350_dcdc_disable, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, .get_mode = wm8350_dcdc_get_mode, .set_mode = wm8350_dcdc_set_mode, .get_optimum_mode = wm8350_dcdc_get_optimum_mode, - .is_enabled = wm8350_dcdc_is_enabled, .set_suspend_voltage = wm8350_dcdc_set_suspend_voltage, .set_suspend_enable = wm8350_dcdc_set_suspend_enable, .set_suspend_disable = wm8350_dcdc_set_suspend_disable, @@ -1186,9 +1103,9 @@ static struct regulator_ops wm8350_dcdc_ops = { }; static struct regulator_ops wm8350_dcdc2_5_ops = { - .enable = wm8350_dcdc_enable, - .disable = wm8350_dcdc_disable, - .is_enabled = wm8350_dcdc_is_enabled, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, .set_suspend_enable = wm8350_dcdc25_set_suspend_enable, .set_suspend_disable = wm8350_dcdc25_set_suspend_disable, }; @@ -1197,9 +1114,9 @@ static struct regulator_ops wm8350_ldo_ops = { .set_voltage = wm8350_ldo_set_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = wm8350_ldo_list_voltage, - .enable = wm8350_ldo_enable, - .disable = wm8350_ldo_disable, - .is_enabled = wm8350_ldo_is_enabled, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, .get_mode = wm8350_ldo_get_mode, .set_suspend_voltage = wm8350_ldo_set_suspend_voltage, .set_suspend_enable = wm8350_ldo_set_suspend_enable, @@ -1225,6 +1142,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_DCDC_MAX_VSEL + 1, .vsel_reg = WM8350_DCDC1_CONTROL, .vsel_mask = WM8350_DC1_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC1_ENA, .owner = THIS_MODULE, }, { @@ -1233,6 +1152,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .ops = &wm8350_dcdc2_5_ops, .irq = WM8350_IRQ_UV_DC2, .type = REGULATOR_VOLTAGE, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC2_ENA, .owner = THIS_MODULE, }, { @@ -1244,6 +1165,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_DCDC_MAX_VSEL + 1, .vsel_reg = WM8350_DCDC3_CONTROL, .vsel_mask = WM8350_DC3_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC3_ENA, .owner = THIS_MODULE, }, { @@ -1255,6 +1178,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_DCDC_MAX_VSEL + 1, .vsel_reg = WM8350_DCDC4_CONTROL, .vsel_mask = WM8350_DC4_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC4_ENA, .owner = THIS_MODULE, }, { @@ -1263,6 +1188,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .ops = &wm8350_dcdc2_5_ops, .irq = WM8350_IRQ_UV_DC5, .type = REGULATOR_VOLTAGE, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC5_ENA, .owner = THIS_MODULE, }, { @@ -1274,6 +1201,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_DCDC_MAX_VSEL + 1, .vsel_reg = WM8350_DCDC6_CONTROL, .vsel_mask = WM8350_DC6_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_DC6_ENA, .owner = THIS_MODULE, }, { @@ -1285,6 +1214,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_LDO1_VSEL_MASK + 1, .vsel_reg = WM8350_LDO1_CONTROL, .vsel_mask = WM8350_LDO1_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_LDO1_ENA, .owner = THIS_MODULE, }, { @@ -1296,6 +1227,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_LDO2_VSEL_MASK + 1, .vsel_reg = WM8350_LDO2_CONTROL, .vsel_mask = WM8350_LDO2_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_LDO2_ENA, .owner = THIS_MODULE, }, { @@ -1307,6 +1240,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_LDO3_VSEL_MASK + 1, .vsel_reg = WM8350_LDO3_CONTROL, .vsel_mask = WM8350_LDO3_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_LDO3_ENA, .owner = THIS_MODULE, }, { @@ -1318,6 +1253,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .n_voltages = WM8350_LDO4_VSEL_MASK + 1, .vsel_reg = WM8350_LDO4_CONTROL, .vsel_mask = WM8350_LDO4_VSEL_MASK, + .enable_reg = WM8350_DCDC_LDO_REQUESTED, + .enable_mask = WM8350_LDO4_ENA, .owner = THIS_MODULE, }, { -- cgit v1.2.3 From 107a3967a814d99e700ff3788f6c66568ab914db Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 9 May 2012 22:22:30 +0100 Subject: regulator: wm8350: Convert DCDCs to set_voltage_sel() and linear voltages The WM8350 DCDCs have a simple linear mapping from selectors to voltages so can be converted very simply to use the new infrastructure for a nice reduction in code size. Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 64 +++++------------------------------- 1 file changed, 8 insertions(+), 56 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 12ecaec770a1..a618284fc45e 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -359,60 +359,6 @@ int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode, } EXPORT_SYMBOL_GPL(wm8350_isink_set_flash); -static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV, unsigned *selector) -{ - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, dcdc = rdev_get_id(rdev), mV, - min_mV = min_uV / 1000, max_mV = max_uV / 1000; - u16 val; - - if (min_mV < 850 || min_mV > 4025) - return -EINVAL; - if (max_mV < 850 || max_mV > 4025) - return -EINVAL; - - /* step size is 25mV */ - mV = (min_mV - 826) / 25; - if (wm8350_dcdc_val_to_mvolts(mV) > max_mV) - return -EINVAL; - BUG_ON(wm8350_dcdc_val_to_mvolts(mV) < min_mV); - - switch (dcdc) { - case WM8350_DCDC_1: - volt_reg = WM8350_DCDC1_CONTROL; - break; - case WM8350_DCDC_3: - volt_reg = WM8350_DCDC3_CONTROL; - break; - case WM8350_DCDC_4: - volt_reg = WM8350_DCDC4_CONTROL; - break; - case WM8350_DCDC_6: - volt_reg = WM8350_DCDC6_CONTROL; - break; - case WM8350_DCDC_2: - case WM8350_DCDC_5: - default: - return -EINVAL; - } - - *selector = mV; - - /* all DCDCs have same mV bits */ - val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK; - wm8350_reg_write(wm8350, volt_reg, val | mV); - return 0; -} - -static int wm8350_dcdc_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector > WM8350_DCDC_MAX_VSEL) - return -EINVAL; - return wm8350_dcdc_val_to_mvolts(selector) * 1000; -} - static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm8350 *wm8350 = rdev_get_drvdata(rdev); @@ -1087,9 +1033,9 @@ static unsigned int wm8350_dcdc_get_optimum_mode(struct regulator_dev *rdev, } static struct regulator_ops wm8350_dcdc_ops = { - .set_voltage = wm8350_dcdc_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = wm8350_dcdc_list_voltage, + .list_voltage = regulator_list_voltage_linear, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, @@ -1140,6 +1086,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC1, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .min_uV = 850000, + .uV_step = 25000, .vsel_reg = WM8350_DCDC1_CONTROL, .vsel_mask = WM8350_DC1_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1163,6 +1111,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC3, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .min_uV = 850000, + .uV_step = 25000, .vsel_reg = WM8350_DCDC3_CONTROL, .vsel_mask = WM8350_DC3_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1199,6 +1149,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC6, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .min_uV = 850000, + .uV_step = 25000, .vsel_reg = WM8350_DCDC6_CONTROL, .vsel_mask = WM8350_DC6_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, -- cgit v1.2.3 From 8029a00686e396919b9adb2a6df07d68ef96cf3d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 22 May 2012 12:26:42 +0800 Subject: regulator: palmas: Use regulator_[list|map]_voltage_linear() for palmas_ops_smps10 Signed-off-by: Axel Lin Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index c4435f608df7..b4e10b0b36d4 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -400,19 +400,14 @@ static struct regulator_ops palmas_ops_smps = { .map_voltage = palmas_map_voltage_smps, }; -static int palmas_list_voltage_smps10(struct regulator_dev *dev, - unsigned selector) -{ - return 3750000 + (selector * 1250000); -} - static struct regulator_ops palmas_ops_smps10 = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .list_voltage = palmas_list_voltage_smps10, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, }; static int palmas_is_enabled_ldo(struct regulator_dev *dev) @@ -675,6 +670,8 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].vsel_mask = SMPS10_VSEL; pmic->desc[id].enable_reg = PALMAS_SMPS10_STATUS; pmic->desc[id].enable_mask = SMPS10_BOOST_EN; + pmic->desc[id].min_uV = 3750000; + pmic->desc[id].uV_step = 1250000; } pmic->desc[id].type = REGULATOR_VOLTAGE; -- cgit v1.2.3 From 0713e6abf398327b6813398d3583e0907953e457 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 14 May 2012 11:06:44 +0800 Subject: regulator: anatop: Convert to regulator_list_voltage_linear() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/anatop-regulator.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index 3660bace123c..d04cf2113245 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -94,21 +94,10 @@ static int anatop_get_voltage_sel(struct regulator_dev *reg) return val - anatop_reg->min_bit_val; } -static int anatop_list_voltage(struct regulator_dev *reg, unsigned selector) -{ - struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg); - int uv; - - uv = anatop_reg->min_voltage + selector * 25000; - dev_dbg(®->dev, "vddio = %d, selector = %u\n", uv, selector); - - return uv; -} - static struct regulator_ops anatop_rops = { .set_voltage = anatop_set_voltage, .get_voltage_sel = anatop_get_voltage_sel, - .list_voltage = anatop_list_voltage, + .list_voltage = regulator_list_voltage_linear, }; static int __devinit anatop_regulator_probe(struct platform_device *pdev) @@ -176,6 +165,8 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev) rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage) / 25000 + 1; + rdesc->min_uV = sreg->min_voltage; + rdesc->uV_step = 25000; config.dev = &pdev->dev; config.init_data = initdata; -- cgit v1.2.3 From f2d103add158af4c95223a1b576cc0cc6a41a18b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 23 May 2012 22:40:58 +0800 Subject: regulator: wm8994: Convert wm8994_ldo1_ops to regulator_[list|map]_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8994-regulator.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c index 9a994316e63c..0e2028b74d1a 100644 --- a/drivers/regulator/wm8994-regulator.c +++ b/drivers/regulator/wm8994-regulator.c @@ -77,22 +77,14 @@ static int wm8994_ldo_enable_time(struct regulator_dev *rdev) return 3000; } -static int wm8994_ldo1_list_voltage(struct regulator_dev *rdev, - unsigned int selector) -{ - if (selector > WM8994_LDO1_MAX_SELECTOR) - return -EINVAL; - - return (selector * 100000) + 2400000; -} - static struct regulator_ops wm8994_ldo1_ops = { .enable = wm8994_ldo_enable, .disable = wm8994_ldo_disable, .is_enabled = wm8994_ldo_is_enabled, .enable_time = wm8994_ldo_enable_time, - .list_voltage = wm8994_ldo1_list_voltage, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, }; @@ -143,6 +135,8 @@ static const struct regulator_desc wm8994_ldo_desc[] = { .vsel_reg = WM8994_LDO_1, .vsel_mask = WM8994_LDO1_VSEL_MASK, .ops = &wm8994_ldo1_ops, + .min_uV = 2400000, + .uV_step = 100000, .owner = THIS_MODULE, }, { -- cgit v1.2.3 From c2543b5f6c3e13996776079cda1007ef6e7a0bbb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 31 May 2012 17:39:00 +0800 Subject: regulator: wm831x-ldo: Use regulator_map_voltage_linear for wm831x_alive_ldo_ops wm831x_alive_ldo_ops uses simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the default regulator_map_voltage_iterate. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm831x-ldo.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index a9a28d8ac185..f23d020e9503 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -690,6 +690,7 @@ static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev) static struct regulator_ops wm831x_alive_ldo_ops = { .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage = wm831x_alive_ldo_set_voltage, .set_suspend_voltage = wm831x_alive_ldo_set_suspend_voltage, -- cgit v1.2.3 From 27eeabb7a1000de974e45cd007b3f5324dcee490 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 31 May 2012 17:40:22 +0800 Subject: regulator: wm8400: Use regulator_map_voltage_linear for wm8400_dcdc_ops wm8400_dcdc_ops uses simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the default regulator_map_voltage_iterate. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8400-regulator.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index 69a2b7ce5e4a..f365795d51c2 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -152,6 +152,7 @@ static struct regulator_ops wm8400_dcdc_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_mode = wm8400_dcdc_get_mode, -- cgit v1.2.3 From 133d4016f1783b21e9458430fa7c0c610c010037 Mon Sep 17 00:00:00 2001 From: Jonghwa Lee Date: Fri, 1 Jun 2012 13:17:14 +0900 Subject: regulator: MAX77686: Add Maxim 77686 regulator driver Add driver for support max77686 regulator. MAX77686 provides LDOs[1~26] and BUCKs[1~9]. It support to set or get the volatege of regulator on max77686 chip with using regmap. Signed-off-by: Chiwoong Byun Signed-off-by: Jonghwa Lee Signed-off-by: Myungjoo Ham Signed-off-by: Kyungmin Park Reviewed-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 8 + drivers/regulator/Makefile | 1 + drivers/regulator/max77686.c | 337 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 346 insertions(+) create mode 100644 drivers/regulator/max77686.c (limited to 'drivers') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index c86b8864e411..00ffe05d8026 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -195,6 +195,14 @@ config REGULATOR_MAX8998 via I2C bus. The provided regulator is suitable for S3C6410 and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages. +config REGULATOR_MAX77686 + tristate "Maxim 77686 regulator" + depends on MFD_MAX77686 + help + This driver controls a Maxim 77686 regulator + via I2C bus. The provided regulator is suitable for + Exynos-4 chips to control VARM and VINT voltages. + config REGULATOR_PCAP tristate "Motorola PCAP2 regulator driver" depends on EZX_PCAP diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 977fd46909ab..d8544539efec 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o +obj-$(CONFIG_REGULATOR_MAX77686) += max77686.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c new file mode 100644 index 000000000000..70046f8032fd --- /dev/null +++ b/drivers/regulator/max77686.c @@ -0,0 +1,337 @@ +/* + * max77686.c - Regulator driver for the Maxim 77686 + * + * Copyright (C) 2012 Samsung Electronics + * Chiwoong Byun + * Jonghwa Lee + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8997.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX77686_LDO_MINUV 800000 +#define MAX77686_LDO_UVSTEP 50000 +#define MAX77686_LDO_LOW_MINUV 800000 +#define MAX77686_LDO_LOW_UVSTEP 25000 +#define MAX77686_BUCK_MINUV 750000 +#define MAX77686_BUCK_UVSTEP 50000 +#define MAX77686_DVS_MINUV 600000 +#define MAX77686_DVS_UVSTEP 12500 + +#define MAX77686_OPMODE_SHIFT 6 +#define MAX77686_OPMODE_BUCK234_SHIFT 4 +#define MAX77686_OPMODE_MASK 0x3 + +#define MAX77686_VSEL_MASK 0x3F +#define MAX77686_DVS_VSEL_MASK 0xFF + +#define MAX77686_RAMP_RATE_MASK 0xC0 + +#define MAX77686_REGULATORS MAX77686_REG_MAX +#define MAX77686_LDOS 26 + +enum max77686_ramp_rate { + RAMP_RATE_13P75MV, + RAMP_RATE_27P5MV, + RAMP_RATE_55MV, + RAMP_RATE_NO_CTRL, /* 100mV/us */ +}; + +struct max77686_data { + struct device *dev; + struct max77686_dev *iodev; + int num_regulators; + struct regulator_dev **rdev; + int ramp_delay; /* in mV/us */ +}; + +static int max77686_set_dvs_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, unsigned int new_selector) +{ + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + int ramp_rate[] = {13, 27, 55, 100}; + return (DIV_ROUND_UP(rdev->desc->uV_step + * abs(new_selector - old_selector), + ramp_rate[max77686->ramp_delay])); +} + +static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, unsigned int new_selector) +{ + /* Unconditionally 100 mV/us */ + return (DIV_ROUND_UP(rdev->desc->uV_step + * abs(new_selector - old_selector), 100)); +} + +static struct regulator_ops max77686_ops = { + .list_voltage = regulator_list_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = max77686_set_voltage_time_sel, +}; + +static struct regulator_ops max77686_buck_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = max77686_set_dvs_voltage_time_sel, +}; + +#define regulator_desc_ldo(num) { \ + .name = "LDO"#num, \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_MINUV, \ + .uV_step = MAX77686_LDO_UVSTEP, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_ldo_low(num) { \ + .name = "LDO"#num, \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_LOW_MINUV, \ + .uV_step = MAX77686_LDO_LOW_UVSTEP, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_buck(num) { \ + .name = "BUCK"#num, \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_BUCK_MINUV, \ + .uV_step = MAX77686_BUCK_UVSTEP, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \ + .enable_mask = MAX77686_OPMODE_MASK, \ +} +#define regulator_desc_buck1(num) { \ + .name = "BUCK"#num, \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_BUCK_MINUV, \ + .uV_step = MAX77686_BUCK_UVSTEP, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK1OUT, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK1CTRL, \ + .enable_mask = MAX77686_OPMODE_MASK, \ +} +#define regulator_desc_buck_dvs(num) { \ + .name = "BUCK"#num, \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_DVS_MINUV, \ + .uV_step = MAX77686_DVS_UVSTEP, \ + .n_voltages = MAX77686_DVS_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \ + .vsel_mask = MAX77686_DVS_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_BUCK234_SHIFT, \ +} + +static struct regulator_desc regulators[] = { + regulator_desc_ldo_low(1), + regulator_desc_ldo_low(2), + regulator_desc_ldo(3), + regulator_desc_ldo(4), + regulator_desc_ldo(5), + regulator_desc_ldo_low(6), + regulator_desc_ldo_low(7), + regulator_desc_ldo_low(8), + regulator_desc_ldo(9), + regulator_desc_ldo(10), + regulator_desc_ldo(11), + regulator_desc_ldo(12), + regulator_desc_ldo(13), + regulator_desc_ldo(14), + regulator_desc_ldo_low(15), + regulator_desc_ldo(16), + regulator_desc_ldo(17), + regulator_desc_ldo(18), + regulator_desc_ldo(19), + regulator_desc_ldo(20), + regulator_desc_ldo(21), + regulator_desc_ldo(22), + regulator_desc_ldo(23), + regulator_desc_ldo(24), + regulator_desc_ldo(25), + regulator_desc_ldo(26), + regulator_desc_buck1(1), + regulator_desc_buck_dvs(2), + regulator_desc_buck_dvs(3), + regulator_desc_buck_dvs(4), + regulator_desc_buck(5), + regulator_desc_buck(6), + regulator_desc_buck(7), + regulator_desc_buck(8), + regulator_desc_buck(9), +}; + +static __devinit int max77686_pmic_probe(struct platform_device *pdev) +{ + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); + struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev); + struct regulator_dev **rdev; + struct max77686_data *max77686; + int i, size; + int ret = 0; + struct regulator_config config; + + dev_dbg(&pdev->dev, "%s\n", __func__); + + max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), + GFP_KERNEL); + if (!max77686) + return -ENOMEM; + + size = sizeof(struct regulator_dev *) * MAX77686_REGULATORS; + max77686->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + if (!max77686->rdev) + return -ENOMEM; + + rdev = max77686->rdev; + max77686->dev = &pdev->dev; + max77686->iodev = iodev; + if (pdata) + max77686->num_regulators = pdata->num_regulators; + platform_set_drvdata(pdev, max77686); + + max77686->ramp_delay = RAMP_RATE_NO_CTRL; /* Set 0x3 for RAMP */ + regmap_update_bits(max77686->iodev->regmap, + MAX77686_REG_BUCK2CTRL1, MAX77686_RAMP_RATE_MASK, + max77686->ramp_delay << 6); + regmap_update_bits(max77686->iodev->regmap, + MAX77686_REG_BUCK3CTRL1, MAX77686_RAMP_RATE_MASK, + max77686->ramp_delay << 6); + regmap_update_bits(max77686->iodev->regmap, + MAX77686_REG_BUCK4CTRL1, MAX77686_RAMP_RATE_MASK, + max77686->ramp_delay << 6); + + if (pdata->num_regulators == MAX77686_REGULATORS) { + for (i = 0; i < MAX77686_REGULATORS; i++) { + config.dev = max77686->dev; + config.regmap = iodev->regmap; + config.driver_data = max77686; + config.init_data = pdata->regulators[i].initdata; + + rdev[i] = regulator_register(®ulators[i], &config); + + if (IS_ERR(rdev[i])) { + ret = PTR_ERR(rdev[i]); + dev_err(max77686->dev, + "regulator init failed for %d\n", i); + rdev[i] = NULL; + goto err; + } + } + } else { + dev_err(max77686->dev, + "Lack of initial data for regulator's initialiation\n"); + return -EINVAL; + } + return 0; +err: + for (i = 0; i < MAX77686_REGULATORS; i++) { + if (rdev[i]) + regulator_unregister(rdev[i]); + } + return ret; +} + +static int __devexit max77686_pmic_remove(struct platform_device *pdev) +{ + struct max77686_data *max77686 = platform_get_drvdata(pdev); + struct regulator_dev **rdev = max77686->rdev; + int i; + + for (i = 0; i < MAX77686_REGULATORS; i++) + if (rdev[i]) + regulator_unregister(rdev[i]); + + return 0; +} + +static const struct platform_device_id max77686_pmic_id[] = { + {"max77686-pmic", 0}, + { }, +}; +MODULE_DEVICE_TABLE(platform, max77686_pmic_id); + +static struct platform_driver max77686_pmic_driver = { + .driver = { + .name = "max77686-pmic", + .owner = THIS_MODULE, + }, + .probe = max77686_pmic_probe, + .remove = __devexit_p(max77686_pmic_remove), + .id_table = max77686_pmic_id, +}; + +static int __init max77686_pmic_init(void) +{ + return platform_driver_register(&max77686_pmic_driver); +} +subsys_initcall(max77686_pmic_init); + +static void __exit max77686_pmic_cleanup(void) +{ + platform_driver_unregister(&max77686_pmic_driver); +} +module_exit(max77686_pmic_cleanup); + +MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver"); +MODULE_AUTHOR("Chiwoong Byun "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From abcfaf23c7d8494bd3b3266f7a78e9efe6206ca4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 1 Jun 2012 12:16:25 +0800 Subject: regulator: fixed: Use of_match_ptr() for of_match_table entry Use the new of_match_ptr() macro for the of_match_table pointer entry to avoid having to #define match NULL. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/fixed.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index f09fe7b20e82..8bda3654ae51 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -296,8 +296,6 @@ static const struct of_device_id fixed_of_match[] __devinitconst = { {}, }; MODULE_DEVICE_TABLE(of, fixed_of_match); -#else -#define fixed_of_match NULL #endif static struct platform_driver regulator_fixed_voltage_driver = { @@ -306,7 +304,7 @@ static struct platform_driver regulator_fixed_voltage_driver = { .driver = { .name = "reg-fixed-voltage", .owner = THIS_MODULE, - .of_match_table = fixed_of_match, + .of_match_table = of_match_ptr(fixed_of_match), }, }; -- cgit v1.2.3 From 7e715b954a78debf021c8ad33a2cb4f462c245e3 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 30 May 2012 12:47:26 +0800 Subject: regulator: Change ab8500 match names to reflect Device Tree The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the ab8500 regulator driver so this is true. Signed-off-by: Lee Jones Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index f15807449011..290c289a653d 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -771,17 +771,17 @@ static __devinit int ab8500_regulator_register(struct platform_device *pdev, } static struct of_regulator_match ab8500_regulator_matches[] = { - { .name = "LDO-AUX1", .driver_data = (void *) AB8500_LDO_AUX1, }, - { .name = "LDO-AUX2", .driver_data = (void *) AB8500_LDO_AUX2, }, - { .name = "LDO-AUX3", .driver_data = (void *) AB8500_LDO_AUX3, }, - { .name = "LDO-INTCORE", .driver_data = (void *) AB8500_LDO_INTCORE, }, - { .name = "LDO-TVOUT", .driver_data = (void *) AB8500_LDO_TVOUT, }, - { .name = "LDO-USB", .driver_data = (void *) AB8500_LDO_USB, }, - { .name = "LDO-AUDIO", .driver_data = (void *) AB8500_LDO_AUDIO, }, - { .name = "LDO-ANAMIC1", .driver_data = (void *) AB8500_LDO_ANAMIC1, }, - { .name = "LDO-ANAMIC2", .driver_data = (void *) AB8500_LDO_ANAMIC2, }, - { .name = "LDO-DMIC", .driver_data = (void *) AB8500_LDO_DMIC, }, - { .name = "LDO-ANA", .driver_data = (void *) AB8500_LDO_ANA, }, + { .name = "ab8500_ldo_aux1", .driver_data = (void *) AB8500_LDO_AUX1, }, + { .name = "ab8500_ldo_aux2", .driver_data = (void *) AB8500_LDO_AUX2, }, + { .name = "ab8500_ldo_aux3", .driver_data = (void *) AB8500_LDO_AUX3, }, + { .name = "ab8500_ldo_intcore", .driver_data = (void *) AB8500_LDO_INTCORE, }, + { .name = "ab8500_ldo_tvout", .driver_data = (void *) AB8500_LDO_TVOUT, }, + { .name = "ab8500_ldo_usb", .driver_data = (void *) AB8500_LDO_USB, }, + { .name = "ab8500_ldo_audio", .driver_data = (void *) AB8500_LDO_AUDIO, }, + { .name = "ab8500_ldo_anamic1", .driver_data = (void *) AB8500_LDO_ANAMIC1, }, + { .name = "ab8500_ldo_amamic2", .driver_data = (void *) AB8500_LDO_ANAMIC2, }, + { .name = "ab8500_ldo_dmic", .driver_data = (void *) AB8500_LDO_DMIC, }, + { .name = "ab8500_ldo_ana", .driver_data = (void *) AB8500_LDO_ANA, }, }; static __devinit int -- cgit v1.2.3 From 392b309644c7223b5320b939aedf09b5a4f5a325 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 30 May 2012 12:47:27 +0800 Subject: regulator: Change db8500-prcmu match names to reflect Device Tree The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the db8500-prcum regulator driver so this is true. Signed-off-by: Lee Jones Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/db8500-prcmu.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c index 968f97f3cb3d..9dbb491b6efa 100644 --- a/drivers/regulator/db8500-prcmu.c +++ b/drivers/regulator/db8500-prcmu.c @@ -452,26 +452,26 @@ static __devinit int db8500_regulator_register(struct platform_device *pdev, } static struct of_regulator_match db8500_regulator_matches[] = { - { .name = "db8500-vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, - { .name = "db8500-varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, - { .name = "db8500-vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, - { .name = "db8500-vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, - { .name = "db8500-vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, - { .name = "db8500-vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, - { .name = "db8500-vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, - { .name = "db8500-vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, - { .name = "db8500-sva-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, - { .name = "db8500-sva-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, - { .name = "db8500-sva-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, - { .name = "db8500-sia-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, - { .name = "db8500-sia-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, - { .name = "db8500-sia-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, - { .name = "db8500-sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, - { .name = "db8500-b2r2-mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, - { .name = "db8500-esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, - { .name = "db8500-esram12-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, - { .name = "db8500-esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, - { .name = "db8500-esram34-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, + { .name = "db8500_vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, + { .name = "db8500_varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, + { .name = "db8500_vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, + { .name = "db8500_vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, + { .name = "db8500_vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, + { .name = "db8500_vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, + { .name = "db8500_vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, + { .name = "db8500_vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, + { .name = "db8500_sva_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, + { .name = "db8500_sva_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, + { .name = "db8500_sva_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, + { .name = "db8500_sia_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, + { .name = "db8500_sia_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, + { .name = "db8500_sia_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, + { .name = "db8500_sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, + { .name = "db8500_b2r2_mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, + { .name = "db8500_esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, + { .name = "db8500_esram12_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, + { .name = "db8500_esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, + { .name = "db8500_esram34_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, }; static __devinit int -- cgit v1.2.3 From fcbb71f6f8084b74fef54e40c9e515105ccc4e6e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 3 Jun 2012 23:12:16 +0800 Subject: regulator: wm8350: Use regulator_map_voltage_linear for wm8350_dcdc_ops wm8350_dcdc_ops uses simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the default regulator_map_voltage_iterate. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index a618284fc45e..33c37f9c0e41 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -1036,6 +1036,7 @@ static struct regulator_ops wm8350_dcdc_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, -- cgit v1.2.3 From 2e3f7f26e1323fb302921c4575a499710636d531 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 3 Jun 2012 22:46:14 +0800 Subject: regulator: max77686: Use regulator_map_voltage_linear for simple linear mappings Both max77686_ops and max77686_buck_dvs_ops use simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the defult regulator_map_voltage_iterate. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 70046f8032fd..4e9f4f3f062b 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -90,6 +90,7 @@ static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, static struct regulator_ops max77686_ops = { .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, @@ -100,6 +101,7 @@ static struct regulator_ops max77686_ops = { static struct regulator_ops max77686_buck_dvs_ops = { .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, -- cgit v1.2.3 From 87c9ea76a242c2f9063e2a8f3e90846c932c61a7 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sun, 3 Jun 2012 21:56:21 +0530 Subject: mtip32xx: Remove version.h header file inclusion version.h header file inclusion is no longer required. Signed-off-by: Sachin Kamat --- drivers/block/mtip32xx/mtip32xx.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index b2c88da26b2a..adb1aae3b752 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -26,7 +26,6 @@ #include #include #include -#include /* Offset of Subsystem Device ID in pci confoguration space */ #define PCI_SUBSYSTEM_DEVICEID 0x2E -- cgit v1.2.3 From fc492f9bd13cb4c7c1299f5d390a203c1ad9a85b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 9 May 2012 22:27:41 +0100 Subject: regulator: wm8350: Convert LDOs to set_voltage_sel() Since there are two linear ranges for the LDO voltages provide a voltage mapping function and then use regulator_set_voltage_sel_regmap(). Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 38 ++++++++---------------------------- 1 file changed, 8 insertions(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 33c37f9c0e41..ca678eea79de 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -671,13 +671,12 @@ static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) return 0; } -static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV, unsigned *selector) +static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, + int max_uV) { - struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, ldo = rdev_get_id(rdev), mV, min_mV = min_uV / 1000, - max_mV = max_uV / 1000; - u16 val; + int mV; + int min_mV = min_uV / 1000; + int max_mV = max_uV / 1000; if (min_mV < 900 || min_mV > 3300) return -EINVAL; @@ -698,29 +697,7 @@ static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV, BUG_ON(wm8350_ldo_val_to_mvolts(mV) < min_mV); } - switch (ldo) { - case WM8350_LDO_1: - volt_reg = WM8350_LDO1_CONTROL; - break; - case WM8350_LDO_2: - volt_reg = WM8350_LDO2_CONTROL; - break; - case WM8350_LDO_3: - volt_reg = WM8350_LDO3_CONTROL; - break; - case WM8350_LDO_4: - volt_reg = WM8350_LDO4_CONTROL; - break; - default: - return -EINVAL; - } - - *selector = mV; - - /* all LDOs have same mV bits */ - val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK; - wm8350_reg_write(wm8350, volt_reg, val | mV); - return 0; + return mV; } static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, @@ -1058,7 +1035,8 @@ static struct regulator_ops wm8350_dcdc2_5_ops = { }; static struct regulator_ops wm8350_ldo_ops = { - .set_voltage = wm8350_ldo_set_voltage, + .map_voltage = wm8350_ldo_map_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = wm8350_ldo_list_voltage, .enable = regulator_enable_regmap, -- cgit v1.2.3 From 96d25221d28646fc2ce0a64a725c67c1ee2f2f0a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 4 Jun 2012 12:56:58 +0800 Subject: regulator: max1586: Convert max1586_v6_ops to regulator_list_voltage_table Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 35 ++++++++++++----------------------- 1 file changed, 12 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index b9444ee08da9..f215195de917 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -47,6 +47,14 @@ struct max1586_data { struct regulator_dev *rdev[0]; }; +/* + * V6 voltage + * On I2C bus, sending a "x" byte to the max1586 means : + * set V6 to either 0V, 1.8V, 2.5V, 3V depending on (x & 0x3) + * As regulator framework doesn't accept voltages to be 0V, we use 1uV. + */ +static int v6_voltages_uv[] = { 1, 1800000, 2500000, 3000000 }; + /* * V3 voltage * On I2C bus, sending a "x" byte to the max1586 means : @@ -97,19 +105,6 @@ static int max1586_v3_list(struct regulator_dev *rdev, unsigned selector) return max1586_v3_calc_voltage(max1586, selector); } -/* - * V6 voltage - * On I2C bus, sending a "x" byte to the max1586 means : - * set V6 to either 0V, 1.8V, 2.5V, 3V depending on (x & 0x3) - * As regulator framework doesn't accept voltages to be 0V, we use 1uV. - */ -static int max1586_v6_calc_voltage(unsigned selector) -{ - static int voltages_uv[] = { 1, 1800000, 2500000, 3000000 }; - - return voltages_uv[selector]; -} - static int max1586_v6_set(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned int *selector) { @@ -130,23 +125,16 @@ static int max1586_v6_set(struct regulator_dev *rdev, int min_uV, int max_uV, else if (min_uV >= 3000000) *selector = 3; - if (max1586_v6_calc_voltage(*selector) > max_uV) + if (rdev->desc->volt_table[*selector] > max_uV) return -EINVAL; dev_dbg(&client->dev, "changing voltage v6 to %dmv\n", - max1586_v6_calc_voltage(*selector) / 1000); + rdev->desc->volt_table[*selector] / 1000); v6_prog = I2C_V6_SELECT | (u8) *selector; return i2c_smbus_write_byte(client, v6_prog); } -static int max1586_v6_list(struct regulator_dev *rdev, unsigned selector) -{ - if (selector > MAX1586_V6_MAX_VSEL) - return -EINVAL; - return max1586_v6_calc_voltage(selector); -} - /* * The Maxim 1586 controls V3 and V6 voltages, but offers no way of reading back * the set up value. @@ -158,7 +146,7 @@ static struct regulator_ops max1586_v3_ops = { static struct regulator_ops max1586_v6_ops = { .set_voltage = max1586_v6_set, - .list_voltage = max1586_v6_list, + .list_voltage = regulator_list_voltage_table, }; static const struct regulator_desc max1586_reg[] = { @@ -176,6 +164,7 @@ static const struct regulator_desc max1586_reg[] = { .ops = &max1586_v6_ops, .type = REGULATOR_VOLTAGE, .n_voltages = MAX1586_V6_MAX_VSEL + 1, + .volt_table = v6_voltages_uv, .owner = THIS_MODULE, }, }; -- cgit v1.2.3 From 0d032731178d78450296bdf0b27562476594c298 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 4 Jun 2012 12:58:24 +0800 Subject: regulator: max1586: Convert max1586_v6_ops to set_voltage_sel Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 27 +++++---------------------- 1 file changed, 5 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index f215195de917..126c7d8f31c6 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -105,33 +105,16 @@ static int max1586_v3_list(struct regulator_dev *rdev, unsigned selector) return max1586_v3_calc_voltage(max1586, selector); } -static int max1586_v6_set(struct regulator_dev *rdev, int min_uV, int max_uV, - unsigned int *selector) +static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) { struct i2c_client *client = rdev_get_drvdata(rdev); u8 v6_prog; - if (min_uV < MAX1586_V6_MIN_UV || min_uV > MAX1586_V6_MAX_UV) - return -EINVAL; - if (max_uV < MAX1586_V6_MIN_UV || max_uV > MAX1586_V6_MAX_UV) - return -EINVAL; - - if (min_uV < 1800000) - *selector = 0; - else if (min_uV < 2500000) - *selector = 1; - else if (min_uV < 3000000) - *selector = 2; - else if (min_uV >= 3000000) - *selector = 3; - - if (rdev->desc->volt_table[*selector] > max_uV) - return -EINVAL; - dev_dbg(&client->dev, "changing voltage v6 to %dmv\n", - rdev->desc->volt_table[*selector] / 1000); + rdev->desc->volt_table[selector] / 1000); - v6_prog = I2C_V6_SELECT | (u8) *selector; + v6_prog = I2C_V6_SELECT | (u8) selector; return i2c_smbus_write_byte(client, v6_prog); } @@ -145,7 +128,7 @@ static struct regulator_ops max1586_v3_ops = { }; static struct regulator_ops max1586_v6_ops = { - .set_voltage = max1586_v6_set, + .set_voltage_sel = max1586_v6_set_voltage_sel, .list_voltage = regulator_list_voltage_table, }; -- cgit v1.2.3 From 74adfee53b8f05b4a9db0848d19399db2cef6cbf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 4 Jun 2012 10:19:18 +0800 Subject: regulator: max77686: Fix checkpatch warnings Fix below checkpatch warnings: $ scripts/checkpatch.pl -f drivers/regulator/max77686.c ERROR: return is not a function, parentheses are not required + return (DIV_ROUND_UP(rdev->desc->uV_step WARNING: line over 80 characters + .ops = &max77686_buck_dvs_ops, \ total: 1 errors, 1 warnings, 339 lines checked Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 4e9f4f3f062b..b76a0389d0b8 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -75,17 +75,18 @@ static int max77686_set_dvs_voltage_time_sel(struct regulator_dev *rdev, { struct max77686_data *max77686 = rdev_get_drvdata(rdev); int ramp_rate[] = {13, 27, 55, 100}; - return (DIV_ROUND_UP(rdev->desc->uV_step - * abs(new_selector - old_selector), - ramp_rate[max77686->ramp_delay])); + + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + ramp_rate[max77686->ramp_delay]); } static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { /* Unconditionally 100 mV/us */ - return (DIV_ROUND_UP(rdev->desc->uV_step - * abs(new_selector - old_selector), 100)); + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), 100); } static struct regulator_ops max77686_ops = { @@ -171,7 +172,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { #define regulator_desc_buck_dvs(num) { \ .name = "BUCK"#num, \ .id = MAX77686_BUCK##num, \ - .ops = &max77686_buck_dvs_ops, \ + .ops = &max77686_buck_dvs_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .min_uV = MAX77686_DVS_MINUV, \ -- cgit v1.2.3 From 7412ff139d73f5561492478e89a22aede7252b7b Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 4 Jun 2012 12:43:03 -0700 Subject: mtip32xx: Remove 'registers' and 'flags' from sysfs This patch removes entries 'registers' and 'flags' from sysfs. Updated ABI file to reflect this change. Reported-by: Greg Kroah-Hartman Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe --- Documentation/ABI/testing/sysfs-block-rssd | 21 ------- drivers/block/mtip32xx/mtip32xx.c | 92 +----------------------------- 2 files changed, 1 insertion(+), 112 deletions(-) (limited to 'drivers') diff --git a/Documentation/ABI/testing/sysfs-block-rssd b/Documentation/ABI/testing/sysfs-block-rssd index 679ce3543122..beef30c046b0 100644 --- a/Documentation/ABI/testing/sysfs-block-rssd +++ b/Documentation/ABI/testing/sysfs-block-rssd @@ -1,26 +1,5 @@ -What: /sys/block/rssd*/registers -Date: March 2012 -KernelVersion: 3.3 -Contact: Asai Thambi S P -Description: This is a read-only file. Dumps below driver information and - hardware registers. - - S ACTive - - Command Issue - - Completed - - PORT IRQ STAT - - HOST IRQ STAT - - Allocated - - Commands in Q - What: /sys/block/rssd*/status Date: April 2012 KernelVersion: 3.4 Contact: Asai Thambi S P Description: This is a read-only file. Indicates the status of the device. - -What: /sys/block/rssd*/flags -Date: May 2012 -KernelVersion: 3.5 -Contact: Asai Thambi S P -Description: This is a read-only file. Dumps the flags in port and driver - data structure diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 264bc77dcb91..b6e95b911b8c 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2546,7 +2546,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, } /* - * Sysfs register/status dump. + * Sysfs status dump. * * @dev Pointer to the device structure, passed by the kernrel. * @attr Pointer to the device_attribute structure passed by the kernel. @@ -2555,71 +2555,6 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, * return value * The size, in bytes, of the data copied into buf. */ -static ssize_t mtip_hw_show_registers(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - u32 group_allocated; - struct driver_data *dd = dev_to_disk(dev)->private_data; - int size = 0; - int n; - - size += sprintf(&buf[size], "Hardware\n--------\n"); - size += sprintf(&buf[size], "S ACTive : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->s_active[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "Command Issue : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->cmd_issue[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "Completed : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->completed[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n", - readl(dd->port->mmio + PORT_IRQ_STAT)); - size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n", - readl(dd->mmio + HOST_IRQ_STAT)); - size += sprintf(&buf[size], "\n"); - - size += sprintf(&buf[size], "Local\n-----\n"); - size += sprintf(&buf[size], "Allocated : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) { - if (sizeof(long) > sizeof(u32)) - group_allocated = - dd->port->allocated[n/2] >> (32*(n&1)); - else - group_allocated = dd->port->allocated[n]; - size += sprintf(&buf[size], "%08X ", group_allocated); - } - size += sprintf(&buf[size], "]\n"); - - size += sprintf(&buf[size], "Commands in Q: [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) { - if (sizeof(long) > sizeof(u32)) - group_allocated = - dd->port->cmds_to_issue[n/2] >> (32*(n&1)); - else - group_allocated = dd->port->cmds_to_issue[n]; - size += sprintf(&buf[size], "%08X ", group_allocated); - } - size += sprintf(&buf[size], "]\n"); - - return size; -} - static ssize_t mtip_hw_show_status(struct device *dev, struct device_attribute *attr, char *buf) @@ -2637,24 +2572,7 @@ static ssize_t mtip_hw_show_status(struct device *dev, return size; } -static ssize_t mtip_hw_show_flags(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct driver_data *dd = dev_to_disk(dev)->private_data; - int size = 0; - - size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n", - dd->port->flags); - size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n", - dd->dd_flag); - - return size; -} - -static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL); static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); -static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL); /* * Create the sysfs related attributes. @@ -2671,15 +2589,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) if (!kobj || !dd) return -EINVAL; - if (sysfs_create_file(kobj, &dev_attr_registers.attr)) - dev_warn(&dd->pdev->dev, - "Error creating 'registers' sysfs entry\n"); if (sysfs_create_file(kobj, &dev_attr_status.attr)) dev_warn(&dd->pdev->dev, "Error creating 'status' sysfs entry\n"); - if (sysfs_create_file(kobj, &dev_attr_flags.attr)) - dev_warn(&dd->pdev->dev, - "Error creating 'flags' sysfs entry\n"); return 0; } @@ -2698,9 +2610,7 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) if (!kobj || !dd) return -EINVAL; - sysfs_remove_file(kobj, &dev_attr_registers.attr); sysfs_remove_file(kobj, &dev_attr_status.attr); - sysfs_remove_file(kobj, &dev_attr_flags.attr); return 0; } -- cgit v1.2.3 From 7b421d24eac79800ee68905f732300a291f72f00 Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 4 Jun 2012 12:44:02 -0700 Subject: mtip32xx: Create debugfs entries for troubleshooting On module load, creates a debugfs parent 'rssd' in debugfs root. Then for each device, create a new node with corresponding disk name. Under the new node, two entries 'registers' and 'flags' are created. NOTE: These entries were removed from sysfs in the previous patch Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe --- drivers/block/mtip32xx/mtip32xx.c | 162 +++++++++++++++++++++++++++++++++++++- drivers/block/mtip32xx/mtip32xx.h | 4 + 2 files changed, 165 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index b6e95b911b8c..a8fddeb3d638 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -37,6 +37,7 @@ #include #include <../drivers/ata/ahci.h> #include +#include #include "mtip32xx.h" #define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32) @@ -85,6 +86,7 @@ static int instance; * allocated in mtip_init(). */ static int mtip_major; +static struct dentry *dfs_parent; static DEFINE_SPINLOCK(rssd_index_lock); static DEFINE_IDA(rssd_index_ida); @@ -2574,6 +2576,120 @@ static ssize_t mtip_hw_show_status(struct device *dev, static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); +static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf, + size_t len, loff_t *offset) +{ + struct driver_data *dd = (struct driver_data *)f->private_data; + char buf[MTIP_DFS_MAX_BUF_SIZE]; + u32 group_allocated; + int size = *offset; + int n; + + if (!len || size) + return 0; + + if (size < 0) + return -EINVAL; + + size += sprintf(&buf[size], "H/ S ACTive : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->s_active[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ Command Issue : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->cmd_issue[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ Completed : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->completed[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ PORT IRQ STAT : [ 0x%08X ]\n", + readl(dd->port->mmio + PORT_IRQ_STAT)); + size += sprintf(&buf[size], "H/ HOST IRQ STAT : [ 0x%08X ]\n", + readl(dd->mmio + HOST_IRQ_STAT)); + size += sprintf(&buf[size], "\n"); + + size += sprintf(&buf[size], "L/ Allocated : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) { + if (sizeof(long) > sizeof(u32)) + group_allocated = + dd->port->allocated[n/2] >> (32*(n&1)); + else + group_allocated = dd->port->allocated[n]; + size += sprintf(&buf[size], "%08X ", group_allocated); + } + size += sprintf(&buf[size], "]\n"); + + size += sprintf(&buf[size], "L/ Commands in Q : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) { + if (sizeof(long) > sizeof(u32)) + group_allocated = + dd->port->cmds_to_issue[n/2] >> (32*(n&1)); + else + group_allocated = dd->port->cmds_to_issue[n]; + size += sprintf(&buf[size], "%08X ", group_allocated); + } + size += sprintf(&buf[size], "]\n"); + + *offset = size <= len ? size : len; + size = copy_to_user(ubuf, buf, *offset); + if (size) + return -EFAULT; + + return *offset; +} + +static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf, + size_t len, loff_t *offset) +{ + struct driver_data *dd = (struct driver_data *)f->private_data; + char buf[MTIP_DFS_MAX_BUF_SIZE]; + int size = *offset; + + if (!len || size) + return 0; + + if (size < 0) + return -EINVAL; + + size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n", + dd->port->flags); + size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n", + dd->dd_flag); + + *offset = size <= len ? size : len; + size = copy_to_user(ubuf, buf, *offset); + if (size) + return -EFAULT; + + return *offset; +} + +static const struct file_operations mtip_regs_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mtip_hw_read_registers, + .llseek = no_llseek, +}; + +static const struct file_operations mtip_flags_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mtip_hw_read_flags, + .llseek = no_llseek, +}; + /* * Create the sysfs related attributes. * @@ -2615,6 +2731,34 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) return 0; } +static int mtip_hw_debugfs_init(struct driver_data *dd) +{ + if (!dfs_parent) + return -1; + + dd->dfs_node = debugfs_create_dir(dd->disk->disk_name, dfs_parent); + if (IS_ERR_OR_NULL(dd->dfs_node)) { + dev_warn(&dd->pdev->dev, + "Error creating node %s under debugfs\n", + dd->disk->disk_name); + dd->dfs_node = NULL; + return -1; + } + + debugfs_create_file("flags", S_IRUGO, dd->dfs_node, dd, + &mtip_flags_fops); + debugfs_create_file("registers", S_IRUGO, dd->dfs_node, dd, + &mtip_regs_fops); + + return 0; +} + +static void mtip_hw_debugfs_exit(struct driver_data *dd) +{ + debugfs_remove_recursive(dd->dfs_node); +} + + /* * Perform any init/resume time hardware setup * @@ -3640,6 +3784,7 @@ skip_create_disk: mtip_hw_sysfs_init(dd, kobj); kobject_put(kobj); } + mtip_hw_debugfs_init(dd); if (dd->mtip_svc_handler) { set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag); @@ -3665,6 +3810,8 @@ start_service_thread: return rv; kthread_run_error: + mtip_hw_debugfs_exit(dd); + /* Delete our gendisk. This also removes the device from /dev */ del_gendisk(dd->disk); @@ -3715,6 +3862,7 @@ static int mtip_block_remove(struct driver_data *dd) kobject_put(kobj); } } + mtip_hw_debugfs_exit(dd); /* * Delete our gendisk structure. This also removes the device @@ -4062,10 +4210,20 @@ static int __init mtip_init(void) } mtip_major = error; + if (!dfs_parent) { + dfs_parent = debugfs_create_dir("rssd", NULL); + if (IS_ERR_OR_NULL(dfs_parent)) { + printk(KERN_WARNING "Error creating debugfs parent\n"); + dfs_parent = NULL; + } + } + /* Register our PCI operations. */ error = pci_register_driver(&mtip_pci_driver); - if (error) + if (error) { + debugfs_remove(dfs_parent); unregister_blkdev(mtip_major, MTIP_DRV_NAME); + } return error; } @@ -4082,6 +4240,8 @@ static int __init mtip_init(void) */ static void __exit mtip_exit(void) { + debugfs_remove_recursive(dfs_parent); + /* Release the allocated major block device number. */ unregister_blkdev(mtip_major, MTIP_DRV_NAME); diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index adb1aae3b752..f51fc23d17bb 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -110,6 +110,8 @@ #define dbg_printk(format, arg...) #endif +#define MTIP_DFS_MAX_BUF_SIZE 1024 + #define __force_bit2int (unsigned int __force) enum { @@ -446,6 +448,8 @@ struct driver_data { unsigned long dd_flag; /* NOTE: use atomic bit operations on this */ struct task_struct *mtip_svc_handler; /* task_struct of svc thd */ + + struct dentry *dfs_node; }; #endif -- cgit v1.2.3 From f03c4a57cf0cbb4f961bca287f8bdfd3d6eb7e1a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 5 Jun 2012 08:39:52 +0800 Subject: regulator: tps6507x: Remove unused min_uV and max_uV from struct tps_info The min_uV and max_uV are not used in this driver. For table based voltage mappings, we can get min_uV and max_uV by info->table[0] and info->table[table_len -1]. Thus remove min_uV and max_uV from struct tps_info. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6507x-regulator.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index c771e1077cc1..eed6678c2906 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -91,8 +91,6 @@ static const unsigned int LDO2_VSEL_table[] = { struct tps_info { const char *name; - unsigned min_uV; - unsigned max_uV; u8 table_len; const unsigned int *table; @@ -103,36 +101,26 @@ struct tps_info { static struct tps_info tps6507x_pmic_regs[] = { { .name = "VDCDC1", - .min_uV = 725000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), .table = VDCDCx_VSEL_table, }, { .name = "VDCDC2", - .min_uV = 725000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), .table = VDCDCx_VSEL_table, }, { .name = "VDCDC3", - .min_uV = 725000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), .table = VDCDCx_VSEL_table, }, { .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(LDO1_VSEL_table), .table = LDO1_VSEL_table, }, { .name = "LDO2", - .min_uV = 725000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(LDO2_VSEL_table), .table = LDO2_VSEL_table, }, -- cgit v1.2.3 From 93b07e7bcd50bb73d3d60043438fa68bd5a0988b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 5 Jun 2012 08:58:13 +0800 Subject: regulator: tps6507x: Avoid duplicating the same mapping table for LDO2 and VDCDCx The voltage mapping table for LDO2 is exactly the same as VDCDCx. Thus we can use one mapping table for both LDO2 and VDCDCx instead of duplicating the mapping table. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6507x-regulator.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index eed6678c2906..07d01ccdf308 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -70,24 +70,8 @@ static const unsigned int LDO1_VSEL_table[] = { 2800000, 3000000, 3100000, 3300000, }; -static const unsigned int LDO2_VSEL_table[] = { - 725000, 750000, 775000, 800000, - 825000, 850000, 875000, 900000, - 925000, 950000, 975000, 1000000, - 1025000, 1050000, 1075000, 1100000, - 1125000, 1150000, 1175000, 1200000, - 1225000, 1250000, 1275000, 1300000, - 1325000, 1350000, 1375000, 1400000, - 1425000, 1450000, 1475000, 1500000, - 1550000, 1600000, 1650000, 1700000, - 1750000, 1800000, 1850000, 1900000, - 1950000, 2000000, 2050000, 2100000, - 2150000, 2200000, 2250000, 2300000, - 2350000, 2400000, 2450000, 2500000, - 2550000, 2600000, 2650000, 2700000, - 2750000, 2800000, 2850000, 2900000, - 3000000, 3100000, 3200000, 3300000, -}; +/* The voltage mapping table for LDO2 is the same as VDCDCx */ +#define LDO2_VSEL_table VDCDCx_VSEL_table struct tps_info { const char *name; -- cgit v1.2.3 From f2f12b6fc032c7b1419fd6db84e2868b5f05a878 Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Wed, 6 Jun 2012 10:50:06 -0600 Subject: iommu/amd: Fix missing iommu_shutdown initialization in passthrough mode The iommu_shutdown callback is not initialized when the AMD IOMMU driver runs in passthrough mode. Fix that by moving the callback initialization before the check for passthrough mode. Signed-off-by: Shuah Khan Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 542024ba6dba..c04ddca7f12f 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1641,6 +1641,8 @@ static int __init amd_iommu_init(void) amd_iommu_init_api(); + x86_platform.iommu_shutdown = disable_iommus; + if (iommu_pass_through) goto out; @@ -1649,8 +1651,6 @@ static int __init amd_iommu_init(void) else printk(KERN_INFO "AMD-Vi: Lazy IO/TLB flushing enabled\n"); - x86_platform.iommu_shutdown = disable_iommus; - out: return ret; -- cgit v1.2.3 From 5a6881e8e134ea636bbc8423049e84638dbb7106 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 7 Jun 2012 10:05:14 +0800 Subject: regulator: core: Handle fixed voltage in map_voltage_linear Fixed voltage is a kind of linear mapping where n_voltages is 1. This change allows [list|map]_voltage_linear to be used for fixed voltage. For fixed voltage, n_voltages is 1 and the only valid selector is 0. Thus we actually don't care the uV_step setting. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/core.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 8521e0d6b3bc..5c6aedaa934d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2070,6 +2070,14 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev, { int ret, voltage; + /* Allow uV_step to be 0 for fixed voltage */ + if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) { + if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV) + return 0; + else + return -EINVAL; + } + if (!rdev->desc->uV_step) { BUG_ON(!rdev->desc->uV_step); return -EINVAL; -- cgit v1.2.3 From 985f769c89aedcae2981080051fc85b4ed035a9b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 7 Jun 2012 10:06:40 +0800 Subject: regulator: isl6271a: Use regulator_[list|map]_voltage_linear for isl_fixed_ops Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/isl6271a-regulator.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c index 56d273f25603..4a11b82a6d57 100644 --- a/drivers/regulator/isl6271a-regulator.c +++ b/drivers/regulator/isl6271a-regulator.c @@ -75,19 +75,13 @@ static struct regulator_ops isl_core_ops = { static int isl6271a_get_fixed_voltage(struct regulator_dev *dev) { - int id = rdev_get_id(dev); - return (id == 1) ? 1100000 : 1300000; -} - -static int isl6271a_list_fixed_voltage(struct regulator_dev *dev, unsigned selector) -{ - int id = rdev_get_id(dev); - return (id == 1) ? 1100000 : 1300000; + return dev->desc->min_uV; } static struct regulator_ops isl_fixed_ops = { .get_voltage = isl6271a_get_fixed_voltage, - .list_voltage = isl6271a_list_fixed_voltage, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, }; static const struct regulator_desc isl_rd[] = { @@ -107,6 +101,7 @@ static const struct regulator_desc isl_rd[] = { .ops = &isl_fixed_ops, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .min_uV = 1100000, }, { .name = "LDO2", .id = 2, @@ -114,6 +109,7 @@ static const struct regulator_desc isl_rd[] = { .ops = &isl_fixed_ops, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .min_uV = 1300000, }, }; -- cgit v1.2.3 From ee3ed6effd8cc4c0cbfa35307cfc5fcec75b5e12 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 7 Jun 2012 10:38:30 +0800 Subject: regulator: da903x: Don't read/write to DA9030_INVAL/DA9034_INVAL address For fixed voltage, DA9030_LDO13 and DA9034_LDO5, the info->vol_reg is DA9030_INVAL/DA9034_INVAL. It does not make sense to read/write to DA9030_INVAL/DA9034_INVAL address. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/da903x.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c index 1005f5f7e603..36c5b92fe0af 100644 --- a/drivers/regulator/da903x.c +++ b/drivers/regulator/da903x.c @@ -107,6 +107,9 @@ static int da903x_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) struct device *da9034_dev = to_da903x_dev(rdev); uint8_t val, mask; + if (rdev->desc->n_voltages == 1) + return -EINVAL; + val = selector << info->vol_shift; mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; @@ -120,6 +123,9 @@ static int da903x_get_voltage_sel(struct regulator_dev *rdev) uint8_t val, mask; int ret; + if (rdev->desc->n_voltages == 1) + return 0; + ret = da903x_read(da9034_dev, info->vol_reg, &val); if (ret) return ret; -- cgit v1.2.3 From 1acb645ebfe3a008e3c3350918d7d29974b1eaec Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 7 Jun 2012 16:38:09 +0800 Subject: regulator: rc5t583: Simplify rc5t583_set_voltage_time_sel implementation For linear mappings, we can use below equation to get the voltage difference between new_selector and old_selector: abs(new_selector - old_selector) * rdev->desc->uV_step Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/rc5t583-regulator.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/rc5t583-regulator.c b/drivers/regulator/rc5t583-regulator.c index 1d34e64a1307..332eae897dab 100644 --- a/drivers/regulator/rc5t583-regulator.c +++ b/drivers/regulator/rc5t583-regulator.c @@ -70,18 +70,10 @@ static int rc5t583_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { struct rc5t583_regulator *reg = rdev_get_drvdata(rdev); - int old_uV, new_uV; - old_uV = regulator_list_voltage_linear(rdev, old_selector); - if (old_uV < 0) - return old_uV; - - new_uV = regulator_list_voltage_linear(rdev, new_selector); - if (new_uV < 0) - return new_uV; - - return DIV_ROUND_UP(abs(old_uV - new_uV), - reg->reg_info->change_uv_per_us); + return DIV_ROUND_UP(abs(new_selector - old_selector) * + rdev->desc->uV_step, + reg->reg_info->change_uv_per_us); } -- cgit v1.2.3 From 999f0c7cb8e7c378bd1f3fcd56cf8dc5a30c83e4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 7 Jun 2012 17:08:21 +0800 Subject: regulator: palmas: Clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits in palmas_set_mode_smps Current code actually clears more bits than PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits. Signed-off-by: Axel Lin Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index b4e10b0b36d4..1a0924d81b2a 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -257,8 +257,7 @@ static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) unsigned int reg; palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); - reg &= ~PALMAS_SMPS12_CTRL_STATUS_MASK; - reg >>= PALMAS_SMPS12_CTRL_STATUS_SHIFT; + reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; switch (mode) { case REGULATOR_MODE_NORMAL: -- cgit v1.2.3 From fedd89b1aafd6b2bf7c0b4009fd616a02484ae80 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 6 Jun 2012 20:01:38 +0800 Subject: regulator: palmas: Slightly code change for better readability It's a little bit hard to read that the "else" case means id == PALMAS_REG_SMPS10. if (id != PALMAS_REG_SMPS10){ do something for the cases id != PALMAS_REG_SMPS10; } else { do something for the case id == PALMAS_REG_SMPS10; } This patch changes above syntax to switch statement. Signed-off-by: Axel Lin Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 1a0924d81b2a..55267bbfcd9c 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -516,7 +516,15 @@ static int palmas_smps_init(struct palmas *palmas, int id, if (ret) return ret; - if (id != PALMAS_REG_SMPS10) { + switch (id) { + case PALMAS_REG_SMPS10: + if (reg_init->mode_sleep) { + reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; + reg |= reg_init->mode_sleep << + PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; + } + break; + default: if (reg_init->warm_reset) reg |= PALMAS_SMPS12_CTRL_WR_S; @@ -528,14 +536,8 @@ static int palmas_smps_init(struct palmas *palmas, int id, reg |= reg_init->mode_sleep << PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; } - } else { - if (reg_init->mode_sleep) { - reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; - reg |= reg_init->mode_sleep << - PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; - } - } + ret = palmas_smps_write(palmas, addr, reg); if (ret) return ret; @@ -659,10 +661,8 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].name = palmas_regs_info[id].name; pmic->desc[id].id = id; - if (id != PALMAS_REG_SMPS10) { - pmic->desc[id].ops = &palmas_ops_smps; - pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; - } else { + switch (id) { + case PALMAS_REG_SMPS10: pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; pmic->desc[id].ops = &palmas_ops_smps10; pmic->desc[id].vsel_reg = PALMAS_SMPS10_CTRL; @@ -671,6 +671,10 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].enable_mask = SMPS10_BOOST_EN; pmic->desc[id].min_uV = 3750000; pmic->desc[id].uV_step = 1250000; + break; + default: + pmic->desc[id].ops = &palmas_ops_smps; + pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; } pmic->desc[id].type = REGULATOR_VOLTAGE; -- cgit v1.2.3 From c49af95631a46e8a2664ae2067c900905c39f2b2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 6 Jun 2012 08:36:37 +0800 Subject: regulator: pcap: Convert to regulator_list_voltage_table Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/pcap-regulator.c | 95 +++++++++++++++++--------------------- 1 file changed, 42 insertions(+), 53 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c index 8211101121f0..68777acc099f 100644 --- a/drivers/regulator/pcap-regulator.c +++ b/drivers/regulator/pcap-regulator.c @@ -18,80 +18,80 @@ #include #include -static const u16 V1_table[] = { - 2775, 1275, 1600, 1725, 1825, 1925, 2075, 2275, +static const unsigned int V1_table[] = { + 2775000, 1275000, 1600000, 1725000, 1825000, 1925000, 2075000, 2275000, }; -static const u16 V2_table[] = { - 2500, 2775, +static const unsigned int V2_table[] = { + 2500000, 2775000, }; -static const u16 V3_table[] = { - 1075, 1275, 1550, 1725, 1876, 1950, 2075, 2275, +static const unsigned int V3_table[] = { + 1075000, 1275000, 1550000, 1725000, 1876000, 1950000, 2075000, 2275000, }; -static const u16 V4_table[] = { - 1275, 1550, 1725, 1875, 1950, 2075, 2275, 2775, +static const unsigned int V4_table[] = { + 1275000, 1550000, 1725000, 1875000, 1950000, 2075000, 2275000, 2775000, }; -static const u16 V5_table[] = { - 1875, 2275, 2475, 2775, +static const unsigned int V5_table[] = { + 1875000, 2275000, 2475000, 2775000, }; -static const u16 V6_table[] = { - 2475, 2775, +static const unsigned int V6_table[] = { + 2475000, 2775000, }; -static const u16 V7_table[] = { - 1875, 2775, +static const unsigned int V7_table[] = { + 1875000, 2775000, }; #define V8_table V4_table -static const u16 V9_table[] = { - 1575, 1875, 2475, 2775, +static const unsigned int V9_table[] = { + 1575000, 1875000, 2475000, 2775000, }; -static const u16 V10_table[] = { - 5000, +static const unsigned int V10_table[] = { + 5000000, }; -static const u16 VAUX1_table[] = { - 1875, 2475, 2775, 3000, +static const unsigned int VAUX1_table[] = { + 1875000, 2475000, 2775000, 3000000, }; #define VAUX2_table VAUX1_table -static const u16 VAUX3_table[] = { - 1200, 1200, 1200, 1200, 1400, 1600, 1800, 2000, - 2200, 2400, 2600, 2800, 3000, 3200, 3400, 3600, +static const unsigned int VAUX3_table[] = { + 1200000, 1200000, 1200000, 1200000, 1400000, 1600000, 1800000, 2000000, + 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, }; -static const u16 VAUX4_table[] = { - 1800, 1800, 3000, 5000, +static const unsigned int VAUX4_table[] = { + 1800000, 1800000, 3000000, 5000000, }; -static const u16 VSIM_table[] = { - 1875, 3000, +static const unsigned int VSIM_table[] = { + 1875000, 3000000, }; -static const u16 VSIM2_table[] = { - 1875, +static const unsigned int VSIM2_table[] = { + 1875000, }; -static const u16 VVIB_table[] = { - 1300, 1800, 2000, 3000, +static const unsigned int VVIB_table[] = { + 1300000, 1800000, 2000000, 3000000, }; -static const u16 SW1_table[] = { - 900, 950, 1000, 1050, 1100, 1150, 1200, 1250, - 1300, 1350, 1400, 1450, 1500, 1600, 1875, 2250, +static const unsigned int SW1_table[] = { + 900000, 950000, 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, + 1300000, 1350000, 1400000, 1450000, 1500000, 1600000, 1875000, 2250000, }; #define SW2_table SW1_table -static const u16 SW3_table[] = { - 4000, 4500, 5000, 5500, +static const unsigned int SW3_table[] = { + 4000000, 4500000, 5000000, 5500000, }; struct pcap_regulator { @@ -100,8 +100,6 @@ struct pcap_regulator { const u8 index; const u8 stby; const u8 lowpwr; - const u8 n_voltages; - const u16 *voltage_table; }; #define NA 0xff @@ -113,8 +111,6 @@ struct pcap_regulator { .index = _index, \ .stby = _stby, \ .lowpwr = _lowpwr, \ - .n_voltages = ARRAY_SIZE(_vreg##_table), \ - .voltage_table = _vreg##_table, \ } static struct pcap_regulator vreg_table[] = { @@ -157,11 +153,11 @@ static int pcap_regulator_set_voltage_sel(struct regulator_dev *rdev, void *pcap = rdev_get_drvdata(rdev); /* the regulator doesn't support voltage switching */ - if (vreg->n_voltages == 1) + if (rdev->desc->n_voltages == 1) return -EINVAL; return ezx_pcap_set_bits(pcap, vreg->reg, - (vreg->n_voltages - 1) << vreg->index, + (rdev->desc->n_voltages - 1) << vreg->index, selector << vreg->index); } @@ -171,11 +167,11 @@ static int pcap_regulator_get_voltage_sel(struct regulator_dev *rdev) void *pcap = rdev_get_drvdata(rdev); u32 tmp; - if (vreg->n_voltages == 1) + if (rdev->desc->n_voltages == 1) return 0; ezx_pcap_read(pcap, vreg->reg, &tmp); - tmp = ((tmp >> vreg->index) & (vreg->n_voltages - 1)); + tmp = ((tmp >> vreg->index) & (rdev->desc->n_voltages - 1)); return tmp; } @@ -214,16 +210,8 @@ static int pcap_regulator_is_enabled(struct regulator_dev *rdev) return (tmp >> vreg->en) & 1; } -static int pcap_regulator_list_voltage(struct regulator_dev *rdev, - unsigned int index) -{ - struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)]; - - return vreg->voltage_table[index] * 1000; -} - static struct regulator_ops pcap_regulator_ops = { - .list_voltage = pcap_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage_sel = pcap_regulator_set_voltage_sel, .get_voltage_sel = pcap_regulator_get_voltage_sel, .enable = pcap_regulator_enable, @@ -236,6 +224,7 @@ static struct regulator_ops pcap_regulator_ops = { .name = #_vreg, \ .id = _vreg, \ .n_voltages = ARRAY_SIZE(_vreg##_table), \ + .volt_table = _vreg##_table, \ .ops = &pcap_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ -- cgit v1.2.3 From f46470379342033bdd9f740ce483c96f5c20eab2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 5 Jun 2012 22:52:06 +0800 Subject: regulator: tps6586x: Convert to regulator_list_voltage_table Also adds tps6586x_ldo0_voltages mapping table for LDO0, so we can remove the hack in tps6586x_list_voltage() and convert it to regulator_list_voltage_table. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6586x-regulator.c | 61 ++++++++++++++-------------------- 1 file changed, 25 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index c0a214575380..c0ac2418d6ab 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -63,8 +63,6 @@ struct tps6586x_regulator { int enable_bit[2]; int enable_reg[2]; - int *voltages; - /* for DVM regulators */ int go_reg; int go_bit; @@ -75,19 +73,6 @@ static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev) return rdev_get_dev(rdev)->parent->parent; } -static int tps6586x_list_voltage(struct regulator_dev *rdev, unsigned selector) -{ - struct tps6586x_regulator *info = rdev_get_drvdata(rdev); - int rid = rdev_get_id(rdev); - - /* LDO0 has minimal voltage 1.2V rather than 1.25V */ - if ((rid == TPS6586X_ID_LDO_0) && (selector == 0)) - return (info->voltages[0] - 50) * 1000; - - return info->voltages[selector] * 1000; -} - - static int tps6586x_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { @@ -168,7 +153,7 @@ static int tps6586x_regulator_is_enabled(struct regulator_dev *rdev) } static struct regulator_ops tps6586x_regulator_ops = { - .list_voltage = tps6586x_list_voltage, + .list_voltage = regulator_list_voltage_table, .get_voltage_sel = tps6586x_get_voltage_sel, .set_voltage_sel = tps6586x_set_voltage_sel, @@ -177,29 +162,33 @@ static struct regulator_ops tps6586x_regulator_ops = { .disable = tps6586x_regulator_disable, }; -static int tps6586x_ldo_voltages[] = { - 1250, 1500, 1800, 2500, 2700, 2850, 3100, 3300, +static const unsigned int tps6586x_ldo0_voltages[] = { + 1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, +}; + +static const unsigned int tps6586x_ldo4_voltages[] = { + 1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000, + 1900000, 1925000, 1950000, 1975000, 2000000, 2025000, 2050000, 2075000, + 2100000, 2125000, 2150000, 2175000, 2200000, 2225000, 2250000, 2275000, + 2300000, 2325000, 2350000, 2375000, 2400000, 2425000, 2450000, 2475000, }; -static int tps6586x_ldo4_voltages[] = { - 1700, 1725, 1750, 1775, 1800, 1825, 1850, 1875, - 1900, 1925, 1950, 1975, 2000, 2025, 2050, 2075, - 2100, 2125, 2150, 2175, 2200, 2225, 2250, 2275, - 2300, 2325, 2350, 2375, 2400, 2425, 2450, 2475, +static const unsigned int tps6586x_ldo_voltages[] = { + 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, }; -static int tps6586x_sm2_voltages[] = { - 3000, 3050, 3100, 3150, 3200, 3250, 3300, 3350, - 3400, 3450, 3500, 3550, 3600, 3650, 3700, 3750, - 3800, 3850, 3900, 3950, 4000, 4050, 4100, 4150, - 4200, 4250, 4300, 4350, 4400, 4450, 4500, 4550, +static const unsigned int tps6586x_sm2_voltages[] = { + 3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000, 3350000, + 3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000, 3750000, + 3800000, 3850000, 3900000, 3950000, 4000000, 4050000, 4100000, 4150000, + 4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000, }; -static int tps6586x_dvm_voltages[] = { - 725, 750, 775, 800, 825, 850, 875, 900, - 925, 950, 975, 1000, 1025, 1050, 1075, 1100, - 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300, - 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500, +static const unsigned int tps6586x_dvm_voltages[] = { + 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, + 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, + 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, + 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, }; #define TPS6586X_REGULATOR(_id, vdata, vreg, shift, nbits, \ @@ -210,6 +199,7 @@ static int tps6586x_dvm_voltages[] = { .type = REGULATOR_VOLTAGE, \ .id = TPS6586X_ID_##_id, \ .n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages), \ + .volt_table = tps6586x_##vdata##_voltages, \ .owner = THIS_MODULE, \ }, \ .volt_reg = TPS6586X_##vreg, \ @@ -218,8 +208,7 @@ static int tps6586x_dvm_voltages[] = { .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ .enable_bit[0] = (ebit0), \ .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ - .enable_bit[1] = (ebit1), \ - .voltages = tps6586x_##vdata##_voltages, + .enable_bit[1] = (ebit1), #define TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit) \ .go_reg = TPS6586X_##goreg, \ @@ -241,7 +230,7 @@ static int tps6586x_dvm_voltages[] = { } static struct tps6586x_regulator tps6586x_regulator[] = { - TPS6586X_LDO(LDO_0, ldo, SUPPLYV1, 5, 3, ENC, 0, END, 0), + TPS6586X_LDO(LDO_0, ldo0, SUPPLYV1, 5, 3, ENC, 0, END, 0), TPS6586X_LDO(LDO_3, ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2), TPS6586X_LDO(LDO_5, ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6), TPS6586X_LDO(LDO_6, ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4), -- cgit v1.2.3 From 93f5de5c58a863b48a8c44d70c4f7e3d0c7af50e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 08:25:41 +0800 Subject: regulator: max1586: Convert max1586_v3_ops to regulator_list_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 32 +++++++++++--------------------- 1 file changed, 11 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index 126c7d8f31c6..a54771e4d960 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -63,14 +63,6 @@ static int v6_voltages_uv[] = { 1, 1800000, 2500000, 3000000 }; * R24 and R25=100kOhm as described in the data sheet. * The gain is approximately: 1 + R24/R25 + R24/185.5kOhm */ -static int max1586_v3_calc_voltage(struct max1586_data *max1586, - unsigned selector) -{ - unsigned range_uV = max1586->max_uV - max1586->min_uV; - - return max1586->min_uV + (selector * range_uV / MAX1586_V3_MAX_VSEL); -} - static int max1586_v3_set(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { @@ -86,25 +78,16 @@ static int max1586_v3_set(struct regulator_dev *rdev, int min_uV, int max_uV, *selector = DIV_ROUND_UP((min_uV - max1586->min_uV) * MAX1586_V3_MAX_VSEL, range_uV); - if (max1586_v3_calc_voltage(max1586, *selector) > max_uV) + if (regulator_list_voltage_linear(rdev, *selector) > max_uV) return -EINVAL; dev_dbg(&client->dev, "changing voltage v3 to %dmv\n", - max1586_v3_calc_voltage(max1586, *selector) / 1000); + regulator_list_voltage_linear(rdev, *selector) / 1000); v3_prog = I2C_V3_SELECT | (u8) *selector; return i2c_smbus_write_byte(client, v3_prog); } -static int max1586_v3_list(struct regulator_dev *rdev, unsigned selector) -{ - struct max1586_data *max1586 = rdev_get_drvdata(rdev); - - if (selector > MAX1586_V3_MAX_VSEL) - return -EINVAL; - return max1586_v3_calc_voltage(max1586, selector); -} - static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector) { @@ -124,7 +107,7 @@ static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev, */ static struct regulator_ops max1586_v3_ops = { .set_voltage = max1586_v3_set, - .list_voltage = max1586_v3_list, + .list_voltage = regulator_list_voltage_linear, }; static struct regulator_ops max1586_v6_ops = { @@ -132,7 +115,7 @@ static struct regulator_ops max1586_v6_ops = { .list_voltage = regulator_list_voltage_table, }; -static const struct regulator_desc max1586_reg[] = { +static struct regulator_desc max1586_reg[] = { { .name = "Output_V3", .id = MAX1586_V3, @@ -185,6 +168,13 @@ static int __devinit max1586_pmic_probe(struct i2c_client *client, goto err; } + if (id == MAX1586_V3) { + max1586_reg[id].min_uV = max1586->min_uV; + max1586_reg[id].uV_step = + (max1586->max_uV - max1586->min_uV) / + MAX1586_V3_MAX_VSEL; + } + config.dev = &client->dev; config.init_data = pdata->subdevs[i].platform_data; config.driver_data = max1586; -- cgit v1.2.3 From 9b558950bb652a85861fef28172e134c367dab1a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 08:26:44 +0800 Subject: regulator: max1586: Convert max1586_v3_ops to set_voltage_sel and map_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index a54771e4d960..f67af3c1b963 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -63,28 +63,17 @@ static int v6_voltages_uv[] = { 1, 1800000, 2500000, 3000000 }; * R24 and R25=100kOhm as described in the data sheet. * The gain is approximately: 1 + R24/R25 + R24/185.5kOhm */ -static int max1586_v3_set(struct regulator_dev *rdev, int min_uV, int max_uV, - unsigned *selector) +static int max1586_v3_set_voltage_sel(struct regulator_dev *rdev, + unsigned selector) { struct max1586_data *max1586 = rdev_get_drvdata(rdev); struct i2c_client *client = max1586->client; - unsigned range_uV = max1586->max_uV - max1586->min_uV; u8 v3_prog; - if (min_uV > max1586->max_uV || max_uV < max1586->min_uV) - return -EINVAL; - if (min_uV < max1586->min_uV) - min_uV = max1586->min_uV; - - *selector = DIV_ROUND_UP((min_uV - max1586->min_uV) * - MAX1586_V3_MAX_VSEL, range_uV); - if (regulator_list_voltage_linear(rdev, *selector) > max_uV) - return -EINVAL; - dev_dbg(&client->dev, "changing voltage v3 to %dmv\n", - regulator_list_voltage_linear(rdev, *selector) / 1000); + regulator_list_voltage_linear(rdev, selector) / 1000); - v3_prog = I2C_V3_SELECT | (u8) *selector; + v3_prog = I2C_V3_SELECT | (u8) selector; return i2c_smbus_write_byte(client, v3_prog); } @@ -106,8 +95,9 @@ static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev, * the set up value. */ static struct regulator_ops max1586_v3_ops = { - .set_voltage = max1586_v3_set, + .set_voltage_sel = max1586_v3_set_voltage_sel, .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, }; static struct regulator_ops max1586_v6_ops = { -- cgit v1.2.3 From ea3b2ea24ef0f2ef9c6795b19cff456195b6728a Mon Sep 17 00:00:00 2001 From: Shmulik Ladkani Date: Fri, 8 Jun 2012 18:29:06 +0300 Subject: mtd: nand: initialize bitflip_threshold prior to BBT scanning As of edbc454 [mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN], 'mtd->bitflip_threshold' must be set for mtd devices having ECC, prior any 'mtd_read()' call. Otherwise, 'mtd_read()' will falsely return -EUCLEAN. Normally, 'mtd->bitflip_threshold' is initialized when the MTD is added. However, this is too late for NAND MTDs, as 'scan_bbt()' is invoked prior the existing initialization of 'mtd->bitflip_threshold'. This is a problem since 'scan_bbt()' calls 'mtd_read()', in the case of a flash-based bad block table. It resulted in a falsely reported bitflips indication during BBT read, which lead to constant scrubbing of the flash BBT blocks. Initialize 'mtd->bitflip_threshold' to its default value (if not already set by the driver), prior to invocation of 'scan_bbt()'. Reported-by: Sascha Hauer Tested-by: Sascha Hauer Signed-off-by: Shmulik Ladkani Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/nand_base.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d47586cf64ce..a11253a0fcab 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3501,6 +3501,13 @@ int nand_scan_tail(struct mtd_info *mtd) /* propagate ecc info to mtd_info */ mtd->ecclayout = chip->ecc.layout; mtd->ecc_strength = chip->ecc.strength; + /* + * Initialize bitflip_threshold to its default prior scan_bbt() call. + * scan_bbt() might invoke mtd_read(), thus bitflip_threshold must be + * properly set. + */ + if (!mtd->bitflip_threshold) + mtd->bitflip_threshold = mtd->ecc_strength; /* Check, if we should skip the bad block table scan */ if (chip->options & NAND_SKIP_BBTSCAN) -- cgit v1.2.3 From e4a99938706b080b562055f83bf29e28ce0770ad Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 10:04:42 +0800 Subject: regulator: isl6271a: Remove setting map_voltage callback for isl_fixed_ops isl_fixed_ops does not implement set_voltage_sel callback, adding map_voltage here is misleading. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/isl6271a-regulator.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c index 4a11b82a6d57..1d145a07ada9 100644 --- a/drivers/regulator/isl6271a-regulator.c +++ b/drivers/regulator/isl6271a-regulator.c @@ -81,7 +81,6 @@ static int isl6271a_get_fixed_voltage(struct regulator_dev *dev) static struct regulator_ops isl_fixed_ops = { .get_voltage = isl6271a_get_fixed_voltage, .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, }; static const struct regulator_desc isl_rd[] = { -- cgit v1.2.3 From ea7e33045458ffd6d13175031527b6527807633c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 4 Jun 2012 12:44:15 +0800 Subject: regulator: twl: Convert twl6030ldo_ops to use regulator_list_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/twl-regulator.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index c7390711d954..a1d07e517db3 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -577,13 +577,6 @@ static struct regulator_ops twl6030coresmps_ops = { .get_voltage = twl6030coresmps_get_voltage, }; -static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return ((info->min_mV + (index * 100)) * 1000); -} - static int twl6030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) @@ -621,7 +614,7 @@ static int twl6030ldo_get_voltage(struct regulator_dev *rdev) } static struct regulator_ops twl6030ldo_ops = { - .list_voltage = twl6030ldo_list_voltage, + .list_voltage = regulator_list_voltage_linear, .set_voltage = twl6030ldo_set_voltage, .get_voltage = twl6030ldo_get_voltage, @@ -959,6 +952,8 @@ static struct twlreg_info TWL6030_INFO_##label = { \ .ops = &twl6030ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .min_uV = min_mVolts * 1000, \ + .uV_step = 100 * 1000, \ }, \ } @@ -974,6 +969,8 @@ static struct twlreg_info TWL6025_INFO_##label = { \ .ops = &twl6030ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .min_uV = min_mVolts * 1000, \ + .uV_step = 100 * 1000, \ }, \ } -- cgit v1.2.3 From d01c3a1e1b1e4e417202adf1e9dec0730eb00e2b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 3 Jun 2012 23:02:34 +0800 Subject: regulator: anatop: Convert to set_voltage_sel and regulator_map_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/anatop-regulator.c | 29 ++++++----------------------- 1 file changed, 6 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index d04cf2113245..4324cea01141 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -43,33 +43,15 @@ struct anatop_regulator { struct regulator_init_data *initdata; }; -static int anatop_set_voltage(struct regulator_dev *reg, int min_uV, - int max_uV, unsigned *selector) +static int anatop_set_voltage_sel(struct regulator_dev *reg, unsigned selector) { struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg); - u32 val, sel, mask; - int uv; - - uv = min_uV; - dev_dbg(®->dev, "%s: uv %d, min %d, max %d\n", __func__, - uv, anatop_reg->min_voltage, - anatop_reg->max_voltage); - - if (uv < anatop_reg->min_voltage) { - if (max_uV > anatop_reg->min_voltage) - uv = anatop_reg->min_voltage; - else - return -EINVAL; - } + u32 val, mask; if (!anatop_reg->control_reg) return -ENOTSUPP; - sel = DIV_ROUND_UP(uv - anatop_reg->min_voltage, 25000); - if (sel * 25000 + anatop_reg->min_voltage > anatop_reg->max_voltage) - return -EINVAL; - val = anatop_reg->min_bit_val + sel; - *selector = sel; + val = anatop_reg->min_bit_val + selector; dev_dbg(®->dev, "%s: calculated val %d\n", __func__, val); mask = ((1 << anatop_reg->vol_bit_width) - 1) << anatop_reg->vol_bit_shift; @@ -95,9 +77,10 @@ static int anatop_get_voltage_sel(struct regulator_dev *reg) } static struct regulator_ops anatop_rops = { - .set_voltage = anatop_set_voltage, + .set_voltage_sel = anatop_set_voltage_sel, .get_voltage_sel = anatop_get_voltage_sel, - .list_voltage = regulator_list_voltage_linear, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, }; static int __devinit anatop_regulator_probe(struct platform_device *pdev) -- cgit v1.2.3 From ab0d1cbe55014ac65cfc317f8ef2cd5fa4b7d4da Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 12:03:04 +0800 Subject: regulator: max77686: Check pdata->num_regulators earlier If this driver only works when pdata->num_regulators == MAX77686_REGULATORS, let's check it earlier. Also remove unused num_regulators from struct max77686_data. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 43 +++++++++++++++++++------------------------ 1 file changed, 19 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index b76a0389d0b8..b0c146df42d1 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -65,7 +65,6 @@ enum max77686_ramp_rate { struct max77686_data { struct device *dev; struct max77686_dev *iodev; - int num_regulators; struct regulator_dev **rdev; int ramp_delay; /* in mV/us */ }; @@ -235,6 +234,12 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "%s\n", __func__); + if (!pdata || pdata->num_regulators != MAX77686_REGULATORS) { + dev_err(&pdev->dev, + "Invalid initial data for regulator's initialiation\n"); + return -EINVAL; + } + max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), GFP_KERNEL); if (!max77686) @@ -248,8 +253,6 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) rdev = max77686->rdev; max77686->dev = &pdev->dev; max77686->iodev = iodev; - if (pdata) - max77686->num_regulators = pdata->num_regulators; platform_set_drvdata(pdev, max77686); max77686->ramp_delay = RAMP_RATE_NO_CTRL; /* Set 0x3 for RAMP */ @@ -263,34 +266,26 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) MAX77686_REG_BUCK4CTRL1, MAX77686_RAMP_RATE_MASK, max77686->ramp_delay << 6); - if (pdata->num_regulators == MAX77686_REGULATORS) { - for (i = 0; i < MAX77686_REGULATORS; i++) { - config.dev = max77686->dev; - config.regmap = iodev->regmap; - config.driver_data = max77686; - config.init_data = pdata->regulators[i].initdata; - - rdev[i] = regulator_register(®ulators[i], &config); - - if (IS_ERR(rdev[i])) { - ret = PTR_ERR(rdev[i]); - dev_err(max77686->dev, + for (i = 0; i < MAX77686_REGULATORS; i++) { + config.dev = max77686->dev; + config.regmap = iodev->regmap; + config.driver_data = max77686; + config.init_data = pdata->regulators[i].initdata; + + rdev[i] = regulator_register(®ulators[i], &config); + if (IS_ERR(rdev[i])) { + ret = PTR_ERR(rdev[i]); + dev_err(max77686->dev, "regulator init failed for %d\n", i); rdev[i] = NULL; goto err; - } } - } else { - dev_err(max77686->dev, - "Lack of initial data for regulator's initialiation\n"); - return -EINVAL; } + return 0; err: - for (i = 0; i < MAX77686_REGULATORS; i++) { - if (rdev[i]) - regulator_unregister(rdev[i]); - } + while (--i >= 0) + regulator_unregister(rdev[i]); return ret; } -- cgit v1.2.3 From 98a175b60f46a80dfa44fb0e0807f2e5a351f35f Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Sat, 9 Jun 2012 16:40:38 +0530 Subject: regulator: core: Add regulator_set_voltage_time_sel to calculate ramp delay. This patch adds regulator_set_voltage_time_sel(), to move into core, the commonly used code by drivers to provide the .set_voltage_time_sel callback. It will also allow us to configure different ramp delay for different regulators easily. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/core.c | 24 ++++++++++++++++++++++++ include/linux/regulator/driver.h | 5 +++++ 2 files changed, 29 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c6aedaa934d..ff76abde3ab3 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2279,6 +2279,30 @@ int regulator_set_voltage_time(struct regulator *regulator, } EXPORT_SYMBOL_GPL(regulator_set_voltage_time); +/** + *regulator_set_voltage_time_sel - get raise/fall time + * @regulator: regulator source + * @old_selector: selector for starting voltage + * @new_selector: selector for target voltage + * + * Provided with the starting and target voltage selectors, this function + * returns time in microseconds required to rise or fall to this new voltage + * + * Drivers providing uV_step in their regulator_desc and ramp_delay in + * regulation_constraints can use this as their set_voltage_time_sel() + * operation. + */ +int regulator_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector) +{ + if (rdev->desc->ramp_delay && rdev->desc->uV_step) + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + rdev->desc->ramp_delay) * 1000; + return 0; +} + /** * regulator_sync_voltage - re-apply last regulator output voltage * @regulator: regulator source diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 80226383e561..ae5c25379237 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -170,6 +170,7 @@ enum regulator_type { * * @min_uV: Voltage given by the lowest selector (if linear mapping) * @uV_step: Voltage increase with each selector (if linear mapping) + * @ramp_delay: Time to settle down after voltage change (unit: mV/us) * @volt_table: Voltage mapping table (if table based mapping) * * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_ @@ -189,6 +190,7 @@ struct regulator_desc { unsigned int min_uV; unsigned int uV_step; + unsigned int ramp_delay; const unsigned int *volt_table; @@ -285,6 +287,9 @@ int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel); int regulator_is_enabled_regmap(struct regulator_dev *rdev); int regulator_enable_regmap(struct regulator_dev *rdev); int regulator_disable_regmap(struct regulator_dev *rdev); +int regulator_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector); void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data); -- cgit v1.2.3 From 23ca6bf2318fecfbb9cd9d524e82d5029ef365bf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 17:21:44 +0800 Subject: regulator: max77686: Fix the delay time for set_voltage_time_sel rdev->desc->uV_step * abs(new_selector - old_selector) returns uV. The unit of ramp_rate is mV/us. Thus 1000 should be multiplied. Signed-off-by: Axel Lin Reviewed-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index b0c146df42d1..2dd4ac91d283 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -77,7 +77,7 @@ static int max77686_set_dvs_voltage_time_sel(struct regulator_dev *rdev, return DIV_ROUND_UP(rdev->desc->uV_step * abs(new_selector - old_selector), - ramp_rate[max77686->ramp_delay]); + ramp_rate[max77686->ramp_delay] * 1000); } static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, @@ -85,7 +85,7 @@ static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, { /* Unconditionally 100 mV/us */ return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), 100); + abs(new_selector - old_selector), 100 * 1000); } static struct regulator_ops max77686_ops = { -- cgit v1.2.3 From 578df8babf3b1895d562e1ea0d3a81d1e77e0182 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 11 Jun 2012 13:14:50 +0800 Subject: regulator: core: Return correct delay time in regulator_set_voltage_time_sel rdev->desc->uV_step * abs(new_selector - old_selector) returns uV. The unit of ramp_delay is mV/us. Current code multiples 1000 at wrong place. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index ff76abde3ab3..6ffca9b32388 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2299,7 +2299,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, if (rdev->desc->ramp_delay && rdev->desc->uV_step) return DIV_ROUND_UP(rdev->desc->uV_step * abs(new_selector - old_selector), - rdev->desc->ramp_delay) * 1000; + rdev->desc->ramp_delay * 1000); return 0; } -- cgit v1.2.3 From 6878c32e5cc0e40980abe51d1f02fb453e27493e Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 25 May 2012 17:34:51 -0400 Subject: xen/blkfront: Add WARN to deal with misbehaving backends. Part of the ring structure is the 'id' field which is under control of the frontend. The frontend stamps it with "some" value (this some in this implementation being a value less than BLK_RING_SIZE), and when it gets a response expects said value to be in the response structure. We have a check for the id field when spolling new requests but not when de-spolling responses. We also add an extra check in add_id_to_freelist to make sure that the 'struct request' was not NULL - as we cannot pass a NULL to __blk_end_request_all, otherwise that crashes (and all the operations that the response is dealing with end up with __blk_end_request_all). Lastly we also print the name of the operation that failed. [v1: s/BUG/WARN/ suggested by Stefano] [v2: Add extra check in add_id_to_freelist] [v3: Redid op_name per Jan's suggestion] [v4: add const * and add WARN on failure returns] Acked-by: Jan Beulich Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 58 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 46 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 60eed4bdd2e4..e4fb3374dcd2 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -141,14 +141,36 @@ static int get_id_from_freelist(struct blkfront_info *info) return free; } -static void add_id_to_freelist(struct blkfront_info *info, +static int add_id_to_freelist(struct blkfront_info *info, unsigned long id) { + if (info->shadow[id].req.u.rw.id != id) + return -EINVAL; + if (info->shadow[id].request == NULL) + return -EINVAL; info->shadow[id].req.u.rw.id = info->shadow_free; info->shadow[id].request = NULL; info->shadow_free = id; + return 0; } +static const char *op_name(int op) +{ + static const char *const names[] = { + [BLKIF_OP_READ] = "read", + [BLKIF_OP_WRITE] = "write", + [BLKIF_OP_WRITE_BARRIER] = "barrier", + [BLKIF_OP_FLUSH_DISKCACHE] = "flush", + [BLKIF_OP_DISCARD] = "discard" }; + + if (op < 0 || op >= ARRAY_SIZE(names)) + return "unknown"; + + if (!names[op]) + return "reserved"; + + return names[op]; +} static int xlbd_reserve_minors(unsigned int minor, unsigned int nr) { unsigned int end = minor + nr; @@ -746,20 +768,36 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) bret = RING_GET_RESPONSE(&info->ring, i); id = bret->id; + /* + * The backend has messed up and given us an id that we would + * never have given to it (we stamp it up to BLK_RING_SIZE - + * look in get_id_from_freelist. + */ + if (id >= BLK_RING_SIZE) { + WARN(1, "%s: response to %s has incorrect id (%ld)\n", + info->gd->disk_name, op_name(bret->operation), id); + /* We can't safely get the 'struct request' as + * the id is busted. */ + continue; + } req = info->shadow[id].request; if (bret->operation != BLKIF_OP_DISCARD) blkif_completion(&info->shadow[id]); - add_id_to_freelist(info, id); + if (add_id_to_freelist(info, id)) { + WARN(1, "%s: response to %s (id %ld) couldn't be recycled!\n", + info->gd->disk_name, op_name(bret->operation), id); + continue; + } error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO; switch (bret->operation) { case BLKIF_OP_DISCARD: if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { struct request_queue *rq = info->rq; - printk(KERN_WARNING "blkfront: %s: discard op failed\n", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; info->feature_discard = 0; info->feature_secdiscard = 0; @@ -771,18 +809,14 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) case BLKIF_OP_FLUSH_DISKCACHE: case BLKIF_OP_WRITE_BARRIER: if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { - printk(KERN_WARNING "blkfront: %s: write %s op failed\n", - info->flush_op == BLKIF_OP_WRITE_BARRIER ? - "barrier" : "flush disk cache", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; } if (unlikely(bret->status == BLKIF_RSP_ERROR && info->shadow[id].req.u.rw.nr_segments == 0)) { - printk(KERN_WARNING "blkfront: %s: empty write %s op failed\n", - info->flush_op == BLKIF_OP_WRITE_BARRIER ? - "barrier" : "flush disk cache", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: empty %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; } if (unlikely(error)) { -- cgit v1.2.3 From 4eccc579795290a58e2262fa4e9d083d7672e699 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 13:18:51 +0200 Subject: drbd: fix access of unallocated pages and kernel panic BUG: unable to handle kernel NULL pointer dereference at (null) ... [] ? _drbd_bm_set_bits+0x151/0x240 [drbd] [] ? receive_bitmap+0x4f8/0xbc0 [drbd] This fixes an off-by-one error in the receive_bitmap() path, if run-length encoded bitmap transfer is enabled. If the bitmap is an exact multiple of PAGE_SIZE, which means the visible capacity of the drbd device is an exact multiple of 128 MiB (for 4k page size), and bitmap compression (use-rle) is enabled (which became default with 8.4), and the very last bit is dirty and reported in an rle comressed bitmap packet, we ended up trying to kmap_atomic a page pointer that does not exist (bitmap->bm_pages[last index + 1]). bug introduced by: Date: Fri Jul 24 15:33:24 2009 +0200 set bits: optimize for complete last word, fix off-by-one-word corner case made effective by: Date: Thu Dec 16 00:32:38 2010 +0100 drbd: get rid of unused debug code Long time ago, we had paranoia code in the bitmap that allocated one extra word, assigned a magic value, and checked on every occasion that the magic value was still unchanged. That debug code is unused, the extra long word complicates code a bit. Get rid of it. No-one triggered this bug in the last few years, because a large subset of our userbase is unaffected: * typically the last few blocks of a device are not modified frequently, and remain unset * use-rle was disabled by default in drbd < 8.4 * those with slightly "odd" device sizes, or * drbd internal meta data (which will skew the device size slightly, thus makes it harder to have a bug relevant device size) Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_bitmap.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index b5c5ff53cb57..fcb956bb4b4c 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1475,10 +1475,17 @@ void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsi first_word = 0; spin_lock_irq(&b->bm_lock); } - /* last page (respectively only page, for first page == last page) */ last_word = MLPP(el >> LN2_BPL); - bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word); + + /* consider bitmap->bm_bits = 32768, bitmap->bm_number_of_pages = 1. (or multiples). + * ==> e = 32767, el = 32768, last_page = 2, + * and now last_word = 0. + * We do not want to touch last_page in this case, + * as we did not allocate it, it is not present in bitmap->bm_pages. + */ + if (last_word) + bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word); /* possibly trailing bits. * example: (e & 63) == 63, el will be e+1. -- cgit v1.2.3 From 1ed25b269e3dd5ecc64f17beef9ea21745c39ca6 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 14:09:54 +0200 Subject: drbd: fix list corruption by failing but already aborted reads If a read is aborted due to force-detach of a supposedly unresponsive local backing device, and retried on the peer, it can happen that the local request later still completes (hopefully with an error). As it may already have been completed to upper layers meanwhile, it must not be retried again now. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_req.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 9c5c84946b05..773f4e2d3c1b 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -472,12 +472,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, req->rq_state |= RQ_LOCAL_COMPLETED; req->rq_state &= ~RQ_LOCAL_PENDING; - D_ASSERT(!(req->rq_state & RQ_NET_MASK)); + if (req->rq_state & RQ_LOCAL_ABORTED) { + _req_may_be_done(req, m); + break; + } __drbd_chk_io_error(mdev, false); goto_queue_for_net_read: + D_ASSERT(!(req->rq_state & RQ_NET_MASK)); + /* no point in retrying if there is no good remote data, * or we have no connection. */ if (mdev->state.pdsk != D_UP_TO_DATE) { -- cgit v1.2.3 From 0d5934e3c258fc5decc4103600c597086fd95a52 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 14:17:36 +0200 Subject: drbd: fix null pointer dereference with on-congestion policy when diskless We must not look at mdev->actlog, unless we have a get_ldev() reference. It also does not make much sense to try to disconnect or pull-ahead of the peer, if we don't have good local data. Only even consider congestion policies, if our local disk is D_UP_TO_DATE. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_req.c | 59 ++++++++++++++++++++++++++----------------- 1 file changed, 36 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 773f4e2d3c1b..8e93a6ac9bb6 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -770,6 +770,40 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } +static void maybe_pull_ahead(struct drbd_conf *mdev) +{ + int congested = 0; + + /* If I don't even have good local storage, we can not reasonably try + * to pull ahead of the peer. We also need the local reference to make + * sure mdev->act_log is there. + * Note: caller has to make sure that net_conf is there. + */ + if (!get_ldev_if_state(mdev, D_UP_TO_DATE)) + return; + + if (mdev->net_conf->cong_fill && + atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) { + dev_info(DEV, "Congestion-fill threshold reached\n"); + congested = 1; + } + + if (mdev->act_log->used >= mdev->net_conf->cong_extents) { + dev_info(DEV, "Congestion-extents threshold reached\n"); + congested = 1; + } + + if (congested) { + queue_barrier(mdev); /* last barrier, after mirrored writes */ + + if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) + _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); + else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ + _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL); + } + put_ldev(mdev); +} + static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); @@ -977,29 +1011,8 @@ allocate_barrier: _req_mod(req, queue_for_send_oos); if (remote && - mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) { - int congested = 0; - - if (mdev->net_conf->cong_fill && - atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) { - dev_info(DEV, "Congestion-fill threshold reached\n"); - congested = 1; - } - - if (mdev->act_log->used >= mdev->net_conf->cong_extents) { - dev_info(DEV, "Congestion-extents threshold reached\n"); - congested = 1; - } - - if (congested) { - queue_barrier(mdev); /* last barrier, after mirrored writes */ - - if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) - _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); - else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ - _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL); - } - } + mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) + maybe_pull_ahead(mdev); spin_unlock_irq(&mdev->req_lock); kfree(b); /* if someone else has beaten us to it... */ -- cgit v1.2.3 From 0ff472467a04dfecffbf44d2414c756c83212cbe Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 17:18:49 +0800 Subject: regulator: wm8350: Add missing min_uV and uV_step settings for DCDC4 Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index ca678eea79de..53bf3df02975 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -1105,6 +1105,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_DC4, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_DCDC_MAX_VSEL + 1, + .min_uV = 850000, + .uV_step = 25000, .vsel_reg = WM8350_DCDC4_CONTROL, .vsel_mask = WM8350_DC4_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, -- cgit v1.2.3 From 3fe3a182adfeca84f39751af03c8571831a0877f Mon Sep 17 00:00:00 2001 From: Sangbeom Kim Date: Wed, 13 Jun 2012 17:26:15 +0900 Subject: regulator: Remove s5m8767a buck initialization As s5m8767a is revisioned, remove unnecessary buck 2,3,4 initialization routine. Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 290d6fc01029..4edf344fb7c4 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -668,9 +668,6 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) s5m8767->buck4_vol[i]); } } - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, 0x78, 0xff); - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, 0x58, 0xff); - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, 0x78, 0xff); if (s5m8767->buck2_ramp) s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x08, 0x08); -- cgit v1.2.3 From 38c20eb23fb7b5505ac80595f18f4209abc19cd3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 16:34:55 +0800 Subject: regulator: wm8400: Use wm8400_ldo_list_voltage instead of open code to verify selected voltage Call wm8400_ldo_list_voltage() instead of open code to verify selected voltage falls within specified range. Use wm8400_ldo_list_voltage() here is less error prone. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8400-regulator.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index f365795d51c2..9f9df8eef1a1 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -35,27 +35,19 @@ static int wm8400_ldo_map_voltage(struct regulator_dev *dev, int min_uV, int max_uV) { u16 val; + int volt; if (min_uV < 900000 || min_uV > 3300000) return -EINVAL; - if (min_uV < 1700000) { - /* Steps of 50mV from 900mV; */ + if (min_uV < 1700000) /* Steps of 50mV from 900mV; */ val = DIV_ROUND_UP(min_uV - 900000, 50000); + else /* Steps of 100mV from 1700mV */ + val = DIV_ROUND_UP(min_uV - 1700000, 100000) + 15; - if ((val * 50000) + 900000 > max_uV) - return -EINVAL; - BUG_ON((val * 50000) + 900000 < min_uV); - } else { - /* Steps of 100mV from 1700mV */ - val = DIV_ROUND_UP(min_uV - 1700000, 100000); - - if ((val * 100000) + 1700000 > max_uV) - return -EINVAL; - BUG_ON((val * 100000) + 1700000 < min_uV); - - val += 0xf; - } + volt = wm8400_ldo_list_voltage(dev, val); + if (volt < min_uV || volt > max_uV) + return -EINVAL; return val; } -- cgit v1.2.3 From df2643cfa4ad4f3775838ad0c0815c465f351f92 Mon Sep 17 00:00:00 2001 From: Sangbeom Kim Date: Wed, 13 Jun 2012 17:28:18 +0900 Subject: regulator: Replace set_voltage with set_voltage_sel To apply delay time for voltage change, replace s5m8767_set_voltage with s5m8767_set_voltage_sel. Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 38 ++++++++++++++------------------------ 1 file changed, 14 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 4edf344fb7c4..a4a3c7eefd1f 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -357,32 +357,34 @@ static int s5m8767_convert_voltage_to_sel( return selector; } -static inline void s5m8767_set_high(struct s5m8767_info *s5m8767) +static inline int s5m8767_set_high(struct s5m8767_info *s5m8767) { int temp_index = s5m8767->buck_gpioindex; gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); + + return 0; } -static inline void s5m8767_set_low(struct s5m8767_info *s5m8767) +static inline int s5m8767_set_low(struct s5m8767_info *s5m8767) { int temp_index = s5m8767->buck_gpioindex; gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); + + return 0; } -static int s5m8767_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, unsigned *selector) +static int s5m8767_set_voltage_sel(struct regulator_dev *rdev, + unsigned selector) { struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); - const struct s5m_voltage_desc *desc; int reg_id = rdev_get_id(rdev); - int sel, reg, mask, ret = 0, old_index, index = 0; - u8 val; + int reg, mask, ret = 0, old_index, index = 0; u8 *buck234_vol = NULL; switch (reg_id) { @@ -407,15 +409,9 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev, return -EINVAL; } - desc = reg_voltage_map[reg_id]; - - sel = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV); - if (sel < 0) - return sel; - /* buck234_vol != NULL means to control buck234 voltage via DVS GPIO */ if (buck234_vol) { - while (*buck234_vol != sel) { + while (*buck234_vol != selector) { buck234_vol++; index++; } @@ -423,22 +419,16 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev, s5m8767->buck_gpioindex = index; if (index > old_index) - s5m8767_set_high(s5m8767); + return s5m8767_set_high(s5m8767); else - s5m8767_set_low(s5m8767); + return s5m8767_set_low(s5m8767); } else { ret = s5m8767_get_voltage_register(rdev, ®); if (ret) return ret; - s5m_reg_read(s5m8767->iodev, reg, &val); - val = (val & ~mask) | sel; - - ret = s5m_reg_write(s5m8767->iodev, reg, val); + return s5m_reg_update(s5m8767->iodev, reg, selector, mask); } - - *selector = sel; - return ret; } static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev, @@ -463,7 +453,7 @@ static struct regulator_ops s5m8767_ops = { .enable = s5m8767_reg_enable, .disable = s5m8767_reg_disable, .get_voltage_sel = s5m8767_get_voltage_sel, - .set_voltage = s5m8767_set_voltage, + .set_voltage_sel = s5m8767_set_voltage_sel, .set_voltage_time_sel = s5m8767_set_voltage_time_sel, }; -- cgit v1.2.3 From 74e20e569158063970624e360c8395ac5cffd654 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 16:36:20 +0800 Subject: regulator: wm8400: Adjust the equation for selector >= 15 in wm8400_ldo_list_voltage Adjust the equation for selector >= 15 for better readability. The equation "1700000 + ((selector - 15) * 100000)" can be interpreted by: Starting from selector 15: Steps of 100mV from 1700mV Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8400-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index 9f9df8eef1a1..9035dd053611 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -28,7 +28,7 @@ static int wm8400_ldo_list_voltage(struct regulator_dev *dev, if (selector < 15) return 900000 + (selector * 50000); else - return 1600000 + ((selector - 14) * 100000); + return 1700000 + ((selector - 15) * 100000); } static int wm8400_ldo_map_voltage(struct regulator_dev *dev, -- cgit v1.2.3 From b4bc9ef6253578ecc71eec79a7dd423d0a282a4b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 13 Jun 2012 11:27:11 +0800 Subject: regulator: tps65217: Convert to regulator_[is_enabled|get_voltage_sel]_regmap This patch converts .is_enabled and .get_voltage_sel to regulator_is_enabled_regmap and regulator_get_voltage_sel_regmap. For .enable, .disable, and .set_voltage_sel, the write protect level is either 1 or 2. So we cannot use regulator_[enable|disable|set_voltage_sel]_regmap. Now we store the enable reg/mask and vsel reg/mask in regulator_desc, so we can remove enable_mask, set_vout_reg, and set_vout_mask from struct tps_info. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 114 ++++++++++++--------------------- include/linux/mfd/tps65217.h | 6 -- 2 files changed, 42 insertions(+), 78 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 9d371d2cbcae..f5fa05b5bea4 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -26,7 +26,7 @@ #include #include -#define TPS65217_REGULATOR(_name, _id, _ops, _n) \ +#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em) \ { \ .name = _name, \ .id = _id, \ @@ -34,9 +34,13 @@ .n_voltages = _n, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .vsel_reg = _vr, \ + .vsel_mask = _vm, \ + .enable_reg = TPS65217_REG_ENABLE, \ + .enable_mask = _em, \ } \ -#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n, _em, _vr, _vm) \ +#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n)\ { \ .name = _nm, \ .min_uV = _min, \ @@ -45,9 +49,6 @@ .uv_to_vsel = _f2, \ .table = _t, \ .table_len = _n, \ - .enable_mask = _em, \ - .set_vout_reg = _vr, \ - .set_vout_mask = _vm, \ } static const int LDO1_VSEL_table[] = { @@ -127,46 +128,21 @@ static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel) static struct tps_info tps65217_pmic_regs[] = { TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC1_EN, - TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK), + tps65217_uv_to_vsel1, NULL, 64), TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC2_EN, - TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK), + tps65217_uv_to_vsel1, NULL, 64), TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC3_EN, - TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK), + tps65217_uv_to_vsel1, NULL, 64), TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table, - 16, TPS65217_ENABLE_LDO1_EN, TPS65217_REG_DEFLDO1, - TPS65217_DEFLDO1_LDO1_MASK), + 16), TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_LDO2_EN, - TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK), + tps65217_uv_to_vsel1, NULL, 64), TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2, NULL, 32, - TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN, - TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK), + tps65217_uv_to_vsel2, NULL, 32), TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2, NULL, 32, - TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN, - TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK), + tps65217_uv_to_vsel2, NULL, 32), }; -static int tps65217_pmic_is_enabled(struct regulator_dev *dev) -{ - int ret; - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int data, rid = rdev_get_id(dev); - - if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) - return -EINVAL; - - ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data); - if (ret) - return ret; - - return (data & tps->info[rid]->enable_mask) ? 1 : 0; -} - static int tps65217_pmic_enable(struct regulator_dev *dev) { struct tps65217 *tps = rdev_get_drvdata(dev); @@ -177,9 +153,8 @@ static int tps65217_pmic_enable(struct regulator_dev *dev) /* Enable the regulator and password protection is level 1 */ return tps65217_set_bits(tps, TPS65217_REG_ENABLE, - tps->info[rid]->enable_mask, - tps->info[rid]->enable_mask, - TPS65217_PROTECT_L1); + dev->desc->enable_mask, dev->desc->enable_mask, + TPS65217_PROTECT_L1); } static int tps65217_pmic_disable(struct regulator_dev *dev) @@ -192,25 +167,7 @@ static int tps65217_pmic_disable(struct regulator_dev *dev) /* Disable the regulator and password protection is level 1 */ return tps65217_clear_bits(tps, TPS65217_REG_ENABLE, - tps->info[rid]->enable_mask, TPS65217_PROTECT_L1); -} - -static int tps65217_pmic_get_voltage_sel(struct regulator_dev *dev) -{ - int ret; - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int selector, rid = rdev_get_id(dev); - - if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) - return -EINVAL; - - ret = tps65217_reg_read(tps, tps->info[rid]->set_vout_reg, &selector); - if (ret) - return ret; - - selector &= tps->info[rid]->set_vout_mask; - - return selector; + dev->desc->enable_mask, TPS65217_PROTECT_L1); } static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev, @@ -221,8 +178,7 @@ static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev, unsigned int rid = rdev_get_id(dev); /* Set the voltage based on vsel value and write protect level is 2 */ - ret = tps65217_set_bits(tps, tps->info[rid]->set_vout_reg, - tps->info[rid]->set_vout_mask, + ret = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask, selector, TPS65217_PROTECT_L2); /* Set GO bit for DCDCx to initiate voltage transistion */ @@ -285,10 +241,10 @@ static int tps65217_pmic_list_voltage(struct regulator_dev *dev, /* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */ static struct regulator_ops tps65217_pmic_ops = { - .is_enabled = tps65217_pmic_is_enabled, + .is_enabled = regulator_is_enabled_regmap, .enable = tps65217_pmic_enable, .disable = tps65217_pmic_disable, - .get_voltage_sel = tps65217_pmic_get_voltage_sel, + .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = tps65217_pmic_set_voltage_sel, .list_voltage = tps65217_pmic_list_voltage, .map_voltage = tps65217_pmic_map_voltage, @@ -296,22 +252,36 @@ static struct regulator_ops tps65217_pmic_ops = { /* Operations permitted on LDO1 */ static struct regulator_ops tps65217_pmic_ldo1_ops = { - .is_enabled = tps65217_pmic_is_enabled, + .is_enabled = regulator_is_enabled_regmap, .enable = tps65217_pmic_enable, .disable = tps65217_pmic_disable, - .get_voltage_sel = tps65217_pmic_get_voltage_sel, + .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = tps65217_pmic_set_voltage_sel, .list_voltage = tps65217_pmic_list_voltage, }; static const struct regulator_desc regulators[] = { - TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64), - TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64), - TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64), - TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16), - TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64), - TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32), - TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32), + TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64, + TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK, + TPS65217_ENABLE_DC1_EN), + TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64, + TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK, + TPS65217_ENABLE_DC2_EN), + TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64, + TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK, + TPS65217_ENABLE_DC3_EN), + TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16, + TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK, + TPS65217_ENABLE_LDO1_EN), + TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64, + TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK, + TPS65217_ENABLE_LDO2_EN), + TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32, + TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, + TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN), + TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32, + TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, + TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN), }; static int __devinit tps65217_regulator_probe(struct platform_device *pdev) diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index e030ef9a64ee..4e035a41a9b0 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -229,9 +229,6 @@ struct tps65217_board { * @uv_to_vsel: Function pointer to get selector from voltage * @table: Table for non-uniform voltage step-size * @table_len: Length of the voltage table - * @enable_mask: Regulator enable mask bits - * @set_vout_reg: Regulator output voltage set register - * @set_vout_mask: Regulator output voltage set mask * * This data is used to check the regualtor voltage limits while setting. */ @@ -243,9 +240,6 @@ struct tps_info { int (*uv_to_vsel)(int uV, unsigned int *vsel); const int *table; unsigned int table_len; - unsigned int enable_mask; - unsigned int set_vout_reg; - unsigned int set_vout_mask; }; /** -- cgit v1.2.3 From e001f1c8e9c1d3b2f0c638bc712bcac10294aae3 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 7 Jun 2012 17:57:36 -0600 Subject: of: export of_platform_populate() Without this, modules can't use this API, leading to build failures. Signed-off-by: Stephen Warren Signed-off-by: Rob Herring --- drivers/of/platform.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 343ad29e211c..3132ea068d95 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -462,4 +462,5 @@ int of_platform_populate(struct device_node *root, of_node_put(root); return rc; } +EXPORT_SYMBOL_GPL(of_platform_populate); #endif /* CONFIG_OF_ADDRESS */ -- cgit v1.2.3 From 32587371ad3db2f9d335de10dbd8cffd4fff5669 Mon Sep 17 00:00:00 2001 From: Tao Guo Date: Wed, 13 Jun 2012 21:17:21 +0200 Subject: umem: fix up unplugging Fix a regression introduced by 7eaceaccab5f40 ("block: remove per-queue plugging"). In that patch, Jens removed the whole mm_unplug_device() function, which used to be the trigger to make umem start to work. We need to implement unplugging to make umem start to work, or I/O will never be triggered. Signed-off-by: Tao Guo Cc: Neil Brown Cc: Jens Axboe Cc: Shaohua Li Cc: Acked-by: NeilBrown Signed-off-by: Jens Axboe --- drivers/block/umem.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'drivers') diff --git a/drivers/block/umem.c b/drivers/block/umem.c index aa2712060bfb..9a72277a31df 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -513,6 +513,44 @@ static void process_page(unsigned long data) } } +struct mm_plug_cb { + struct blk_plug_cb cb; + struct cardinfo *card; +}; + +static void mm_unplug(struct blk_plug_cb *cb) +{ + struct mm_plug_cb *mmcb = container_of(cb, struct mm_plug_cb, cb); + + spin_lock_irq(&mmcb->card->lock); + activate(mmcb->card); + spin_unlock_irq(&mmcb->card->lock); + kfree(mmcb); +} + +static int mm_check_plugged(struct cardinfo *card) +{ + struct blk_plug *plug = current->plug; + struct mm_plug_cb *mmcb; + + if (!plug) + return 0; + + list_for_each_entry(mmcb, &plug->cb_list, cb.list) { + if (mmcb->cb.callback == mm_unplug && mmcb->card == card) + return 1; + } + /* Not currently on the callback list */ + mmcb = kmalloc(sizeof(*mmcb), GFP_ATOMIC); + if (!mmcb) + return 0; + + mmcb->card = card; + mmcb->cb.callback = mm_unplug; + list_add(&mmcb->cb.list, &plug->cb_list); + return 1; +} + static void mm_make_request(struct request_queue *q, struct bio *bio) { struct cardinfo *card = q->queuedata; @@ -523,6 +561,8 @@ static void mm_make_request(struct request_queue *q, struct bio *bio) *card->biotail = bio; bio->bi_next = NULL; card->biotail = &bio->bi_next; + if (bio->bi_rw & REQ_SYNC || !mm_check_plugged(card)) + activate(card); spin_unlock_irq(&card->lock); return; -- cgit v1.2.3 From 107a84e61cdd3406c842a0e4be7efffd3a05dba6 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 14 Jun 2012 09:12:35 +0200 Subject: of: match by compatible property first When matching devices against an OF device ID table, the first string of the compatible property that is listed in the table should match, regardless of its position in the table. Cc: Grant Likely Cc: Rob Herring Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Thierry Reding Signed-off-by: Rob Herring --- drivers/of/base.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/of/base.c b/drivers/of/base.c index d9bfd49b1935..eada3f4ef801 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -511,6 +511,22 @@ out: } EXPORT_SYMBOL(of_find_node_with_property); +static const struct of_device_id *of_match_compat(const struct of_device_id *matches, + const char *compat) +{ + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { + const char *cp = matches->compatible; + int len = strlen(cp); + + if (len > 0 && of_compat_cmp(compat, cp, len) == 0) + return matches; + + matches++; + } + + return NULL; +} + /** * of_match_node - Tell if an device_node has a matching of_match structure * @matches: array of of device match structures to search in @@ -521,9 +537,18 @@ EXPORT_SYMBOL(of_find_node_with_property); const struct of_device_id *of_match_node(const struct of_device_id *matches, const struct device_node *node) { + struct property *prop; + const char *cp; + if (!matches) return NULL; + of_property_for_each_string(node, "compatible", prop, cp) { + const struct of_device_id *match = of_match_compat(matches, cp); + if (match) + return match; + } + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { int match = 1; if (matches->name[0]) @@ -532,10 +557,7 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches, if (matches->type[0]) match &= node->type && !strcmp(matches->type, node->type); - if (matches->compatible[0]) - match &= of_device_is_compatible(node, - matches->compatible); - if (match) + if (match && !matches->compatible[0]) return matches; matches++; } -- cgit v1.2.3 From a967fbfaca0a979fc34c1097b37d824039a709b1 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 20:08:30 +0800 Subject: regulator: wm8350: Use wm8350_ldo_list_voltage instead of open code to verify selected voltage Call wm8350_ldo_list_voltage() instead of open code to verify selected voltage falls within specified range. Use wm8350_ldo_list_voltage() here is less error prone. wm8350_ldo_val_to_mvolts() is only used in wm8350_ldo_list_voltage now, so remove it and move the implementation to wm8350_ldo_list_voltage(). This patch also include below small changes in wm8350_ldo_map_voltage: 1. wm8350_ldo_map_voltage() returns selector, thus rename variable mV to sel. 2. Use DIV_ROUND_UP macro to calculate selector. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 52 +++++++++++++++--------------------- 1 file changed, 21 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 53bf3df02975..c4913be3e1b4 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -108,15 +108,6 @@ static int get_isink_val(int min_uA, int max_uA, u16 *setting) return -EINVAL; } -static inline int wm8350_ldo_val_to_mvolts(unsigned int val) -{ - if (val < 16) - return (val * 50) + 900; - else - return ((val - 16) * 100) + 1800; - -} - static inline unsigned int wm8350_ldo_mvolts_to_val(int mV) { if (mV < 1800) @@ -671,10 +662,22 @@ static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) return 0; } +static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, + unsigned selector) +{ + if (selector > WM8350_LDO1_VSEL_MASK) + return -EINVAL; + + if (selector < 16) + return (selector * 50000) + 900000; + else + return ((selector - 16) * 100000) + 1800000; +} + static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { - int mV; + int volt, sel; int min_mV = min_uV / 1000; int max_mV = max_uV / 1000; @@ -683,29 +686,16 @@ static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, if (max_mV < 900 || max_mV > 3300) return -EINVAL; - if (min_mV < 1800) { - /* step size is 50mV < 1800mV */ - mV = (min_mV - 851) / 50; - if (wm8350_ldo_val_to_mvolts(mV) > max_mV) - return -EINVAL; - BUG_ON(wm8350_ldo_val_to_mvolts(mV) < min_mV); - } else { - /* step size is 100mV > 1800mV */ - mV = ((min_mV - 1701) / 100) + 16; - if (wm8350_ldo_val_to_mvolts(mV) > max_mV) - return -EINVAL; - BUG_ON(wm8350_ldo_val_to_mvolts(mV) < min_mV); - } - - return mV; -} + if (min_mV < 1800) /* step size is 50mV < 1800mV */ + sel = DIV_ROUND_UP(min_uV - 900, 50); + else /* step size is 100mV > 1800mV */ + sel = DIV_ROUND_UP(min_uV - 1800, 100) + 16; -static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector > WM8350_LDO1_VSEL_MASK) + volt = wm8350_ldo_list_voltage(rdev, sel); + if (volt < min_uV || volt > max_uV) return -EINVAL; - return wm8350_ldo_val_to_mvolts(selector) * 1000; + + return sel; } int wm8350_dcdc_set_slot(struct wm8350 *wm8350, int dcdc, u16 start, -- cgit v1.2.3 From c705742201260afd08b05ff84674507735e2b16b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 20:10:26 +0800 Subject: regulator: wm8350: Reuse map_voltage() to get selector of a given uV Reuse map_voltage() to get the selector of a given uV. Then we can remove wm8350_ldo_mvolts_to_val() and wm8350_dcdc_mvolts_to_val(). Also remove unused wm8350_dcdc_val_to_mvolts() function. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm8350-regulator.c | 127 ++++++++++++++--------------------- 1 file changed, 50 insertions(+), 77 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index c4913be3e1b4..7f0fa22ef2aa 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -108,24 +108,6 @@ static int get_isink_val(int min_uA, int max_uA, u16 *setting) return -EINVAL; } -static inline unsigned int wm8350_ldo_mvolts_to_val(int mV) -{ - if (mV < 1800) - return (mV - 900) / 50; - else - return ((mV - 1800) / 100) + 16; -} - -static inline int wm8350_dcdc_val_to_mvolts(unsigned int val) -{ - return (val * 25) + 850; -} - -static inline unsigned int wm8350_dcdc_mvolts_to_val(int mV) -{ - return (mV - 850) / 25; -} - static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA, int max_uA) { @@ -353,19 +335,10 @@ EXPORT_SYMBOL_GPL(wm8350_isink_set_flash); static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, mV = uV / 1000, dcdc = rdev_get_id(rdev); + int sel, volt_reg, dcdc = rdev_get_id(rdev); u16 val; - dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, dcdc, mV); - - if (mV && (mV < 850 || mV > 4025)) { - dev_err(wm8350->dev, - "DCDC%d suspend voltage %d mV out of range\n", - dcdc, mV); - return -EINVAL; - } - if (mV == 0) - mV = 850; + dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, dcdc, uV / 1000); switch (dcdc) { case WM8350_DCDC_1: @@ -386,10 +359,13 @@ static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV) return -EINVAL; } + sel = regulator_map_voltage_linear(rdev, uV, uV); + if (sel < 0) + return -EINVAL; + /* all DCDCs have same mV bits */ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK; - wm8350_reg_write(wm8350, volt_reg, - val | wm8350_dcdc_mvolts_to_val(mV)); + wm8350_reg_write(wm8350, volt_reg, val | sel); return 0; } @@ -566,19 +542,49 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev, return 0; } +static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, + unsigned selector) +{ + if (selector > WM8350_LDO1_VSEL_MASK) + return -EINVAL; + + if (selector < 16) + return (selector * 50000) + 900000; + else + return ((selector - 16) * 100000) + 1800000; +} + +static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, + int max_uV) +{ + int volt, sel; + int min_mV = min_uV / 1000; + int max_mV = max_uV / 1000; + + if (min_mV < 900 || min_mV > 3300) + return -EINVAL; + if (max_mV < 900 || max_mV > 3300) + return -EINVAL; + + if (min_mV < 1800) /* step size is 50mV < 1800mV */ + sel = DIV_ROUND_UP(min_uV - 900, 50); + else /* step size is 100mV > 1800mV */ + sel = DIV_ROUND_UP(min_uV - 1800, 100) + 16; + + volt = wm8350_ldo_list_voltage(rdev, sel); + if (volt < min_uV || volt > max_uV) + return -EINVAL; + + return sel; +} + static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - int volt_reg, mV = uV / 1000, ldo = rdev_get_id(rdev); + int sel, volt_reg, ldo = rdev_get_id(rdev); u16 val; - dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, ldo, mV); - - if (mV < 900 || mV > 3300) { - dev_err(wm8350->dev, "LDO%d voltage %d mV out of range\n", - ldo, mV); - return -EINVAL; - } + dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, ldo, uV / 1000); switch (ldo) { case WM8350_LDO_1: @@ -597,10 +603,13 @@ static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) return -EINVAL; } + sel = wm8350_ldo_map_voltage(rdev, uV, uV); + if (sel < 0) + return -EINVAL; + /* all LDOs have same mV bits */ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK; - wm8350_reg_write(wm8350, volt_reg, - val | wm8350_ldo_mvolts_to_val(mV)); + wm8350_reg_write(wm8350, volt_reg, val | sel); return 0; } @@ -662,42 +671,6 @@ static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) return 0; } -static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector > WM8350_LDO1_VSEL_MASK) - return -EINVAL; - - if (selector < 16) - return (selector * 50000) + 900000; - else - return ((selector - 16) * 100000) + 1800000; -} - -static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV) -{ - int volt, sel; - int min_mV = min_uV / 1000; - int max_mV = max_uV / 1000; - - if (min_mV < 900 || min_mV > 3300) - return -EINVAL; - if (max_mV < 900 || max_mV > 3300) - return -EINVAL; - - if (min_mV < 1800) /* step size is 50mV < 1800mV */ - sel = DIV_ROUND_UP(min_uV - 900, 50); - else /* step size is 100mV > 1800mV */ - sel = DIV_ROUND_UP(min_uV - 1800, 100) + 16; - - volt = wm8350_ldo_list_voltage(rdev, sel); - if (volt < min_uV || volt > max_uV) - return -EINVAL; - - return sel; -} - int wm8350_dcdc_set_slot(struct wm8350 *wm8350, int dcdc, u16 start, u16 stop, u16 fault) { -- cgit v1.2.3 From ec0ab07587f0d2af208366158f5fd487311f1c56 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 14 Jun 2012 10:22:59 +0800 Subject: regulator: tps65023: Set n_voltages to 1 for fixed voltage For fixed voltage, the n_voltages should be 1 rather than 0. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index f841bd0db6aa..df8b70d76f9e 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -324,7 +324,10 @@ static int __devinit tps_65023_probe(struct i2c_client *client, tps->desc[i].name = info->name; tps->desc[i].id = i; - tps->desc[i].n_voltages = info->table_len; + if (info->fixed) + tps->desc[i].n_voltages = 1; + else + tps->desc[i].n_voltages = info->table_len; tps->desc[i].ops = (i > TPS65023_DCDC_3 ? &tps65023_ldo_ops : &tps65023_dcdc_ops); tps->desc[i].type = REGULATOR_VOLTAGE; -- cgit v1.2.3 From c70ad9dcf08c839b018d8c440bd8c19aabbb08a8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 13 Jun 2012 20:27:14 +0800 Subject: regulator: wm831x-dcdc: Convert wm831x_buckp_ops to regulator_list_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm831x-dcdc.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 099da11e989f..fbcff56e0114 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -599,15 +599,6 @@ static struct platform_driver wm831x_buckv_driver = { * BUCKP specifics */ -static int wm831x_buckp_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector <= WM831X_BUCKP_MAX_SELECTOR) - return 850000 + (selector * 25000); - else - return -EINVAL; -} - static int wm831x_buckp_set_voltage_int(struct regulator_dev *rdev, int reg, int min_uV, int max_uV, int *selector) { @@ -620,7 +611,7 @@ static int wm831x_buckp_set_voltage_int(struct regulator_dev *rdev, int reg, else return -EINVAL; - if (wm831x_buckp_list_voltage(rdev, vsel) > max_uV) + if (regulator_list_voltage_linear(rdev, vsel) > max_uV) return -EINVAL; *selector = vsel; @@ -652,7 +643,7 @@ static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, static struct regulator_ops wm831x_buckp_ops = { .set_voltage = wm831x_buckp_set_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = wm831x_buckp_list_voltage, + .list_voltage = regulator_list_voltage_linear, .set_suspend_voltage = wm831x_buckp_set_suspend_voltage, .is_enabled = regulator_is_enabled_regmap, @@ -715,6 +706,8 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev) dcdc->desc.vsel_mask = WM831X_DC3_ON_VSEL_MASK; dcdc->desc.enable_reg = WM831X_DCDC_ENABLE; dcdc->desc.enable_mask = 1 << id; + dcdc->desc.min_uV = 850000; + dcdc->desc.uV_step = 25000; config.dev = pdev->dev.parent; if (pdata) -- cgit v1.2.3 From e08ef739feec5341fe9382a9f5173ddd56c95f93 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 14:35:32 +0800 Subject: regulator: tps62360: Simplify tps62360_set_voltage_time_sel implementation For linear mappings, we can use below equation to get the voltage difference between new_selector and old_selector: abs(new_selector - old_selector) * rdev->desc->uV_step Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps62360-regulator.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c index e534269ed44a..d044a58640e7 100644 --- a/drivers/regulator/tps62360-regulator.c +++ b/drivers/regulator/tps62360-regulator.c @@ -179,17 +179,10 @@ static int tps62360_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { struct tps62360_chip *tps = rdev_get_drvdata(rdev); - int old_uV, new_uV; - old_uV = regulator_list_voltage_linear(rdev, old_selector); - if (old_uV < 0) - return old_uV; - - new_uV = regulator_list_voltage_linear(rdev, new_selector); - if (new_uV < 0) - return new_uV; - - return DIV_ROUND_UP(abs(old_uV - new_uV), tps->change_uv_per_us); + return DIV_ROUND_UP(abs(new_selector - old_selector) * + rdev->desc->uV_step, + tps->change_uv_per_us); } static int tps62360_set_mode(struct regulator_dev *rdev, unsigned int mode) -- cgit v1.2.3 From ee5e6253ac22210da892435711890fa2272daa41 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 15:39:34 +0800 Subject: regulator: mc13xxx: Fix voltage checking for mc13xxx_fixed_regulator_set_voltage The voltage range checking should be to ensure mc13xxx_regulators[id].voltages[0] falls with min_uV and max_uV. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/mc13xxx-regulator-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c index 4fa9704739bc..3e191715fb25 100644 --- a/drivers/regulator/mc13xxx-regulator-core.c +++ b/drivers/regulator/mc13xxx-regulator-core.c @@ -158,8 +158,8 @@ int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n", __func__, id, min_uV, max_uV); - if (min_uV >= mc13xxx_regulators[id].voltages[0] && - max_uV <= mc13xxx_regulators[id].voltages[0]) + if (min_uV <= mc13xxx_regulators[id].voltages[0] && + mc13xxx_regulators[id].voltages[0] <= max_uV) return 0; else return -EINVAL; -- cgit v1.2.3 From 34e74f39fa9a2c1489444266cc9e973dc1b3a419 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 15:41:48 +0800 Subject: regulator: mc13xxx: Convert to regulator_list_voltage_table Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/mc13783-regulator.c | 38 +++++++++++++-------------- drivers/regulator/mc13892-regulator.c | 42 +++++++++++++++--------------- drivers/regulator/mc13xxx-regulator-core.c | 30 +++++---------------- drivers/regulator/mc13xxx.h | 9 +++---- 4 files changed, 49 insertions(+), 70 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c index 7dcdfa283e93..4932e3449fe1 100644 --- a/drivers/regulator/mc13783-regulator.c +++ b/drivers/regulator/mc13783-regulator.c @@ -93,78 +93,78 @@ /* Voltage Values */ -static const int mc13783_sw3_val[] = { +static const unsigned int mc13783_sw3_val[] = { 5000000, 5000000, 5000000, 5500000, }; -static const int mc13783_vaudio_val[] = { +static const unsigned int mc13783_vaudio_val[] = { 2775000, }; -static const int mc13783_viohi_val[] = { +static const unsigned int mc13783_viohi_val[] = { 2775000, }; -static const int mc13783_violo_val[] = { +static const unsigned int mc13783_violo_val[] = { 1200000, 1300000, 1500000, 1800000, }; -static const int mc13783_vdig_val[] = { +static const unsigned int mc13783_vdig_val[] = { 1200000, 1300000, 1500000, 1800000, }; -static const int mc13783_vgen_val[] = { +static const unsigned int mc13783_vgen_val[] = { 1200000, 1300000, 1500000, 1800000, 1100000, 2000000, 2775000, 2400000, }; -static const int mc13783_vrfdig_val[] = { +static const unsigned int mc13783_vrfdig_val[] = { 1200000, 1500000, 1800000, 1875000, }; -static const int mc13783_vrfref_val[] = { +static const unsigned int mc13783_vrfref_val[] = { 2475000, 2600000, 2700000, 2775000, }; -static const int mc13783_vrfcp_val[] = { +static const unsigned int mc13783_vrfcp_val[] = { 2700000, 2775000, }; -static const int mc13783_vsim_val[] = { +static const unsigned int mc13783_vsim_val[] = { 1800000, 2900000, 3000000, }; -static const int mc13783_vesim_val[] = { +static const unsigned int mc13783_vesim_val[] = { 1800000, 2900000, }; -static const int mc13783_vcam_val[] = { +static const unsigned int mc13783_vcam_val[] = { 1500000, 1800000, 2500000, 2550000, 2600000, 2750000, 2800000, 3000000, }; -static const int mc13783_vrfbg_val[] = { +static const unsigned int mc13783_vrfbg_val[] = { 1250000, }; -static const int mc13783_vvib_val[] = { +static const unsigned int mc13783_vvib_val[] = { 1300000, 1800000, 2000000, 3000000, }; -static const int mc13783_vmmc_val[] = { +static const unsigned int mc13783_vmmc_val[] = { 1600000, 1800000, 2000000, 2600000, 2700000, 2800000, 2900000, 3000000, }; -static const int mc13783_vrf_val[] = { +static const unsigned int mc13783_vrf_val[] = { 1500000, 1875000, 2700000, 2775000, }; -static const int mc13783_gpo_val[] = { +static const unsigned int mc13783_gpo_val[] = { 3100000, }; -static const int mc13783_pwgtdrv_val[] = { +static const unsigned int mc13783_pwgtdrv_val[] = { 5500000, }; @@ -328,7 +328,7 @@ static struct regulator_ops mc13783_gpo_regulator_ops = { .enable = mc13783_gpo_regulator_enable, .disable = mc13783_gpo_regulator_disable, .is_enabled = mc13783_gpo_regulator_is_enabled, - .list_voltage = mc13xxx_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, .get_voltage = mc13xxx_fixed_regulator_get_voltage, }; diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index 970a233dbe46..6329723b5372 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -150,12 +150,12 @@ #define MC13892_USB1 50 #define MC13892_USB1_VUSBEN (1<<3) -static const int mc13892_vcoincell[] = { +static const unsigned int mc13892_vcoincell[] = { 2500000, 2700000, 2800000, 2900000, 3000000, 3100000, 3200000, 3300000, }; -static const int mc13892_sw1[] = { +static const unsigned int mc13892_sw1[] = { 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, @@ -164,7 +164,7 @@ static const int mc13892_sw1[] = { 1350000, 1375000 }; -static const int mc13892_sw[] = { +static const unsigned int mc13892_sw[] = { 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, @@ -176,65 +176,65 @@ static const int mc13892_sw[] = { 1800000, 1825000, 1850000, 1875000 }; -static const int mc13892_swbst[] = { +static const unsigned int mc13892_swbst[] = { 5000000, }; -static const int mc13892_viohi[] = { +static const unsigned int mc13892_viohi[] = { 2775000, }; -static const int mc13892_vpll[] = { +static const unsigned int mc13892_vpll[] = { 1050000, 1250000, 1650000, 1800000, }; -static const int mc13892_vdig[] = { +static const unsigned int mc13892_vdig[] = { 1050000, 1250000, 1650000, 1800000, }; -static const int mc13892_vsd[] = { +static const unsigned int mc13892_vsd[] = { 1800000, 2000000, 2600000, 2700000, 2800000, 2900000, 3000000, 3150000, }; -static const int mc13892_vusb2[] = { +static const unsigned int mc13892_vusb2[] = { 2400000, 2600000, 2700000, 2775000, }; -static const int mc13892_vvideo[] = { +static const unsigned int mc13892_vvideo[] = { 2700000, 2775000, 2500000, 2600000, }; -static const int mc13892_vaudio[] = { +static const unsigned int mc13892_vaudio[] = { 2300000, 2500000, 2775000, 3000000, }; -static const int mc13892_vcam[] = { +static const unsigned int mc13892_vcam[] = { 2500000, 2600000, 2750000, 3000000, }; -static const int mc13892_vgen1[] = { +static const unsigned int mc13892_vgen1[] = { 1200000, 1500000, 2775000, 3150000, }; -static const int mc13892_vgen2[] = { +static const unsigned int mc13892_vgen2[] = { 1200000, 1500000, 1600000, 1800000, 2700000, 2800000, 3000000, 3150000, }; -static const int mc13892_vgen3[] = { +static const unsigned int mc13892_vgen3[] = { 1800000, 2900000, }; -static const int mc13892_vusb[] = { +static const unsigned int mc13892_vusb[] = { 3300000, }; -static const int mc13892_gpo[] = { +static const unsigned int mc13892_gpo[] = { 2750000, }; -static const int mc13892_pwgtdrv[] = { +static const unsigned int mc13892_pwgtdrv[] = { 5000000, }; @@ -394,7 +394,7 @@ static struct regulator_ops mc13892_gpo_regulator_ops = { .enable = mc13892_gpo_regulator_enable, .disable = mc13892_gpo_regulator_disable, .is_enabled = mc13892_gpo_regulator_is_enabled, - .list_voltage = mc13xxx_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, .get_voltage = mc13xxx_fixed_regulator_get_voltage, }; @@ -436,7 +436,7 @@ static int mc13892_sw_regulator_set_voltage_sel(struct regulator_dev *rdev, u32 valread; int ret; - value = mc13892_regulators[id].voltages[selector]; + value = rdev->desc->volt_table[selector]; mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(priv->mc13xxx, @@ -470,7 +470,7 @@ err: static struct regulator_ops mc13892_sw_regulator_ops = { .is_enabled = mc13xxx_sw_regulator_is_enabled, - .list_voltage = mc13xxx_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage_sel = mc13892_sw_regulator_set_voltage_sel, .get_voltage = mc13892_sw_regulator_get_voltage, }; diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c index 3e191715fb25..8a6b050ff5aa 100644 --- a/drivers/regulator/mc13xxx-regulator-core.c +++ b/drivers/regulator/mc13xxx-regulator-core.c @@ -80,20 +80,6 @@ static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev) return (val & mc13xxx_regulators[id].enable_bit) != 0; } -int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - int id = rdev_get_id(rdev); - struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); - struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; - - if (selector >= mc13xxx_regulators[id].desc.n_voltages) - return -EINVAL; - - return mc13xxx_regulators[id].voltages[selector]; -} -EXPORT_SYMBOL_GPL(mc13xxx_regulator_list_voltage); - static int mc13xxx_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { @@ -135,14 +121,14 @@ static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev) BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages); - return mc13xxx_regulators[id].voltages[val]; + return rdev->desc->volt_table[val]; } struct regulator_ops mc13xxx_regulator_ops = { .enable = mc13xxx_regulator_enable, .disable = mc13xxx_regulator_disable, .is_enabled = mc13xxx_regulator_is_enabled, - .list_voltage = mc13xxx_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage_sel = mc13xxx_regulator_set_voltage_sel, .get_voltage = mc13xxx_regulator_get_voltage, }; @@ -151,15 +137,13 @@ EXPORT_SYMBOL_GPL(mc13xxx_regulator_ops); int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { - struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); - struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n", __func__, id, min_uV, max_uV); - if (min_uV <= mc13xxx_regulators[id].voltages[0] && - mc13xxx_regulators[id].voltages[0] <= max_uV) + if (min_uV <= rdev->desc->volt_table[0] && + rdev->desc->volt_table[0] <= max_uV) return 0; else return -EINVAL; @@ -168,13 +152,11 @@ EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage); int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev) { - struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); - struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); - return mc13xxx_regulators[id].voltages[0]; + return rdev->desc->volt_table[0]; } EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_get_voltage); @@ -182,7 +164,7 @@ struct regulator_ops mc13xxx_fixed_regulator_ops = { .enable = mc13xxx_regulator_enable, .disable = mc13xxx_regulator_disable, .is_enabled = mc13xxx_regulator_is_enabled, - .list_voltage = mc13xxx_regulator_list_voltage, + .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, .get_voltage = mc13xxx_fixed_regulator_get_voltage, }; diff --git a/drivers/regulator/mc13xxx.h b/drivers/regulator/mc13xxx.h index 044aba4d28ec..9a8f72ce718e 100644 --- a/drivers/regulator/mc13xxx.h +++ b/drivers/regulator/mc13xxx.h @@ -22,7 +22,6 @@ struct mc13xxx_regulator { int vsel_shift; int vsel_mask; int hi_bit; - int const *voltages; }; struct mc13xxx_regulator_priv { @@ -35,8 +34,6 @@ struct mc13xxx_regulator_priv { extern int mc13xxx_sw_regulator(struct regulator_dev *rdev); extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev); -extern int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev, - unsigned selector); extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector); extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev); @@ -68,6 +65,7 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; .desc = { \ .name = #_name, \ .n_voltages = ARRAY_SIZE(_voltages), \ + .volt_table = _voltages, \ .ops = &_ops, \ .type = REGULATOR_VOLTAGE, \ .id = prefix ## _name, \ @@ -78,7 +76,6 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; .vsel_reg = prefix ## _vsel_reg, \ .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\ .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\ - .voltages = _voltages, \ } #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops) \ @@ -86,6 +83,7 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; .desc = { \ .name = #_name, \ .n_voltages = ARRAY_SIZE(_voltages), \ + .volt_table = _voltages, \ .ops = &_ops, \ .type = REGULATOR_VOLTAGE, \ .id = prefix ## _name, \ @@ -93,7 +91,6 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; }, \ .reg = prefix ## _reg, \ .enable_bit = prefix ## _reg ## _ ## _name ## EN, \ - .voltages = _voltages, \ } #define MC13xxx_GPO_DEFINE(prefix, _name, _reg, _voltages, _ops) \ @@ -101,6 +98,7 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; .desc = { \ .name = #_name, \ .n_voltages = ARRAY_SIZE(_voltages), \ + .volt_table = _voltages, \ .ops = &_ops, \ .type = REGULATOR_VOLTAGE, \ .id = prefix ## _name, \ @@ -108,7 +106,6 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops; }, \ .reg = prefix ## _reg, \ .enable_bit = prefix ## _reg ## _ ## _name ## EN, \ - .voltages = _voltages, \ } #define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops) \ -- cgit v1.2.3 From 7142e2138b088da429d94859df0ed05b1b82607c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 10:27:49 +0800 Subject: regulator: ab8500: Use regulator_list_voltage_linear for ab8500_regulator_fixed_ops Also removes set_voltage_time_sel callback from ab8500_regulator_fixed_ops because the voltage won't change. ( And ab8500_regulator_fixed_ops does not implement get_voltage_sel so set_voltage_time_sel won't be called ) Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 41 +++++++++-------------------------------- 1 file changed, 9 insertions(+), 32 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index 290c289a653d..c931c7c0ad1b 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -32,7 +32,6 @@ * @regulator_dev: regulator device * @max_uV: maximum voltage (for variable voltage supplies) * @min_uV: minimum voltage (for variable voltage supplies) - * @fixed_uV: typical voltage (for fixed voltage supplies) * @update_bank: bank to control on/off * @update_reg: register to control on/off * @update_mask: mask to enable/disable regulator @@ -48,7 +47,6 @@ struct ab8500_regulator_info { struct regulator_dev *regulator; int max_uV; int min_uV; - int fixed_uV; u8 update_bank; u8 update_reg; u8 update_mask; @@ -271,29 +269,9 @@ static struct regulator_ops ab8500_regulator_ops = { .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; -static int ab8500_fixed_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); - - if (info == NULL) { - dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); - return -EINVAL; - } - - return info->fixed_uV; -} - static int ab8500_fixed_get_voltage(struct regulator_dev *rdev) { - struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); - - if (info == NULL) { - dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); - return -EINVAL; - } - - return info->fixed_uV; + return rdev->desc->min_uV; } static struct regulator_ops ab8500_regulator_fixed_ops = { @@ -301,9 +279,8 @@ static struct regulator_ops ab8500_regulator_fixed_ops = { .disable = ab8500_regulator_disable, .is_enabled = ab8500_regulator_is_enabled, .get_voltage = ab8500_fixed_get_voltage, - .list_voltage = ab8500_fixed_list_voltage, + .list_voltage = regulator_list_voltage_linear, .enable_time = ab8500_regulator_enable_time, - .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; static struct ab8500_regulator_info @@ -408,9 +385,9 @@ static struct ab8500_regulator_info .id = AB8500_LDO_TVOUT, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 2000000, }, .delay = 10000, - .fixed_uV = 2000000, .update_bank = 0x03, .update_reg = 0x80, .update_mask = 0x82, @@ -424,8 +401,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_USB, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 3300000, }, - .fixed_uV = 3300000, .update_bank = 0x03, .update_reg = 0x82, .update_mask = 0x03, @@ -439,8 +416,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_AUDIO, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 2000000, }, - .fixed_uV = 2000000, .update_bank = 0x03, .update_reg = 0x83, .update_mask = 0x02, @@ -454,8 +431,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_ANAMIC1, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 2050000, }, - .fixed_uV = 2050000, .update_bank = 0x03, .update_reg = 0x83, .update_mask = 0x08, @@ -469,8 +446,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_ANAMIC2, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 2050000, }, - .fixed_uV = 2050000, .update_bank = 0x03, .update_reg = 0x83, .update_mask = 0x10, @@ -484,8 +461,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_DMIC, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 1800000, }, - .fixed_uV = 1800000, .update_bank = 0x03, .update_reg = 0x83, .update_mask = 0x04, @@ -499,8 +476,8 @@ static struct ab8500_regulator_info .id = AB8500_LDO_ANA, .owner = THIS_MODULE, .n_voltages = 1, + .min_uV = 1200000, }, - .fixed_uV = 1200000, .update_bank = 0x04, .update_reg = 0x06, .update_mask = 0x0c, -- cgit v1.2.3 From 07b9e329f99397d01e4789d64aa2f581a7c94b03 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 8 Jun 2012 10:29:21 +0800 Subject: regulator: ab8500: Remove min_uV and max_uV from struct ab8500_regulator_info The min_uV and max_uV are not really used in the code and misleading because the min_uV and max_uV settings does not match the value in the voltage table. For example, we have static const unsigned int ldo_vaux3_voltages[] = { 1200000, 1500000, 1800000, 2100000, 2500000, 2750000, 2790000, 2910000, }; With below min_uV/max_uV settings for AB8500_LDO_AUX3. .min_uV = 1100000, .max_uV = 3300000, The min_uV/max_uV for AB8500_LDO_AUX3 seems copy-paste from AB8500_LDO_AUX2 and is wrong. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index c931c7c0ad1b..13d424fc1c14 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -30,8 +30,6 @@ * @dev: device pointer * @desc: regulator description * @regulator_dev: regulator device - * @max_uV: maximum voltage (for variable voltage supplies) - * @min_uV: minimum voltage (for variable voltage supplies) * @update_bank: bank to control on/off * @update_reg: register to control on/off * @update_mask: mask to enable/disable regulator @@ -45,8 +43,6 @@ struct ab8500_regulator_info { struct device *dev; struct regulator_desc desc; struct regulator_dev *regulator; - int max_uV; - int min_uV; u8 update_bank; u8 update_reg; u8 update_mask; @@ -301,8 +297,6 @@ static struct ab8500_regulator_info .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), .volt_table = ldo_vauxn_voltages, }, - .min_uV = 1100000, - .max_uV = 3300000, .update_bank = 0x04, .update_reg = 0x09, .update_mask = 0x03, @@ -321,8 +315,6 @@ static struct ab8500_regulator_info .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), .volt_table = ldo_vauxn_voltages, }, - .min_uV = 1100000, - .max_uV = 3300000, .update_bank = 0x04, .update_reg = 0x09, .update_mask = 0x0c, @@ -341,8 +333,6 @@ static struct ab8500_regulator_info .n_voltages = ARRAY_SIZE(ldo_vaux3_voltages), .volt_table = ldo_vaux3_voltages, }, - .min_uV = 1100000, - .max_uV = 3300000, .update_bank = 0x04, .update_reg = 0x0a, .update_mask = 0x03, @@ -361,8 +351,6 @@ static struct ab8500_regulator_info .n_voltages = ARRAY_SIZE(ldo_vintcore_voltages), .volt_table = ldo_vintcore_voltages, }, - .min_uV = 1100000, - .max_uV = 3300000, .update_bank = 0x03, .update_reg = 0x80, .update_mask = 0x44, -- cgit v1.2.3 From 368a7887698c3e7ec30678853fa7dd1f0720863f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 11 Jun 2012 14:43:57 +0800 Subject: regulator: pcf50633: Convert to regulator_set_voltage_sel_regmap and map_voltage Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/pcf50633-regulator.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index 3c9d14c0017b..092e5cb848a1 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -100,13 +100,12 @@ static unsigned int ldo_voltage_value(u8 bits) return 900 + (bits * 100); } -static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, - unsigned *selector) +static int pcf50633_regulator_map_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) { struct pcf50633 *pcf; int regulator_id, millivolts; - u8 volt_bits, regnr; + u8 volt_bits; pcf = rdev_get_drvdata(rdev); @@ -116,15 +115,11 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, millivolts = min_uV / 1000; - regnr = rdev->desc->vsel_reg; - switch (regulator_id) { case PCF50633_REGULATOR_AUTO: volt_bits = auto_voltage_bits(millivolts); break; case PCF50633_REGULATOR_DOWN1: - volt_bits = down_voltage_bits(millivolts); - break; case PCF50633_REGULATOR_DOWN2: volt_bits = down_voltage_bits(millivolts); break; @@ -142,9 +137,7 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, return -EINVAL; } - *selector = volt_bits; - - return pcf50633_reg_write(pcf, regnr, volt_bits); + return volt_bits; } static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, @@ -159,8 +152,6 @@ static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, millivolts = auto_voltage_value(index); break; case PCF50633_REGULATOR_DOWN1: - millivolts = down_voltage_value(index); - break; case PCF50633_REGULATOR_DOWN2: millivolts = down_voltage_value(index); break; @@ -182,9 +173,10 @@ static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, } static struct regulator_ops pcf50633_regulator_ops = { - .set_voltage = pcf50633_regulator_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = pcf50633_regulator_list_voltage, + .map_voltage = pcf50633_regulator_map_voltage, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, -- cgit v1.2.3 From 1bd1955a1f90ca29a3b8ac657028267c8d9de671 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 11 Jun 2012 10:14:28 +0800 Subject: regulator: ab3100: Convert fixed voltage to use regulator_list_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/ab3100.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index b088b6c228c8..16d420b2f7a8 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -43,15 +43,12 @@ * @dev: handle to the device * @plfdata: AB3100 platform data passed in at probe time * @regreg: regulator register number in the AB3100 - * @fixed_voltage: a fixed voltage for this regulator, if this - * 0 the voltages array is used instead. */ struct ab3100_regulator { struct regulator_dev *rdev; struct device *dev; struct ab3100_platform_data *plfdata; u8 regreg; - int fixed_voltage; }; /* The order in which registers are initialized */ @@ -121,15 +118,12 @@ static struct ab3100_regulator ab3100_regulators[AB3100_NUM_REGULATORS] = { { .regreg = AB3100_LDO_A, - .fixed_voltage = LDO_A_VOLTAGE, }, { .regreg = AB3100_LDO_C, - .fixed_voltage = LDO_C_VOLTAGE, }, { .regreg = AB3100_LDO_D, - .fixed_voltage = LDO_D_VOLTAGE, }, { .regreg = AB3100_LDO_E, @@ -246,10 +240,6 @@ static int ab3100_get_voltage_regulator(struct regulator_dev *reg) u8 regval; int err; - /* Return the voltage for fixed regulators immediately */ - if (abreg->fixed_voltage) - return abreg->fixed_voltage; - /* * For variable types, read out setting and index into * supplied voltage list. @@ -382,11 +372,17 @@ static int ab3100_enable_time_regulator(struct regulator_dev *reg) return 0; } +static int ab3100_get_fixed_voltage_regulator(struct regulator_dev *reg) +{ + return reg->desc->min_uV; +} + static struct regulator_ops regulator_ops_fixed = { + .list_voltage = regulator_list_voltage_linear, .enable = ab3100_enable_regulator, .disable = ab3100_disable_regulator, .is_enabled = ab3100_is_enabled_regulator, - .get_voltage = ab3100_get_voltage_regulator, + .get_voltage = ab3100_get_fixed_voltage_regulator, .enable_time = ab3100_enable_time_regulator, }; @@ -430,22 +426,28 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .name = "LDO_A", .id = AB3100_LDO_A, .ops = ®ulator_ops_fixed, + .n_voltages = 1, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .min_uV = LDO_A_VOLTAGE, }, { .name = "LDO_C", .id = AB3100_LDO_C, .ops = ®ulator_ops_fixed, + .n_voltages = 1, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .min_uV = LDO_C_VOLTAGE, }, { .name = "LDO_D", .id = AB3100_LDO_D, .ops = ®ulator_ops_fixed, + .n_voltages = 1, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .min_uV = LDO_D_VOLTAGE, }, { .name = "LDO_E", -- cgit v1.2.3 From 0a4796896bda399a63090dad267896ea93d44fa7 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Jun 2012 10:46:43 +0800 Subject: regulator: wm831x-ldo: Convert to regulator_set_voltage_sel_regmap and map_voltage Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm831x-ldo.c | 129 ++++++++++++----------------------------- 1 file changed, 38 insertions(+), 91 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index f23d020e9503..04d8a413c260 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -78,13 +78,10 @@ static int wm831x_gp_ldo_list_voltage(struct regulator_dev *rdev, return -EINVAL; } -static int wm831x_gp_ldo_set_voltage_int(struct regulator_dev *rdev, int reg, - int min_uV, int max_uV, - unsigned *selector) +static int wm831x_gp_ldo_map_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) { - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - struct wm831x *wm831x = ldo->wm831x; - int vsel, ret; + int volt, vsel; if (min_uV < 900000) vsel = 0; @@ -94,36 +91,25 @@ static int wm831x_gp_ldo_set_voltage_int(struct regulator_dev *rdev, int reg, vsel = ((min_uV - 1700000) / 100000) + WM831X_GP_LDO_SELECTOR_LOW + 1; - ret = wm831x_gp_ldo_list_voltage(rdev, vsel); - if (ret < 0) - return ret; - if (ret < min_uV || ret > max_uV) + volt = wm831x_gp_ldo_list_voltage(rdev, vsel); + if (volt < min_uV || volt > max_uV) return -EINVAL; - *selector = vsel; - - return wm831x_set_bits(wm831x, reg, WM831X_LDO1_ON_VSEL_MASK, vsel); -} - -static int wm831x_gp_ldo_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, - unsigned *selector) -{ - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_LDO_ON_CONTROL; - - return wm831x_gp_ldo_set_voltage_int(rdev, reg, min_uV, max_uV, - selector); + return vsel; } static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; - unsigned int selector; + struct wm831x *wm831x = ldo->wm831x; + int sel, reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; - return wm831x_gp_ldo_set_voltage_int(rdev, reg, uV, uV, &selector); + sel = wm831x_gp_ldo_map_voltage(rdev, uV, uV); + if (sel < 0) + return sel; + + return wm831x_set_bits(wm831x, reg, WM831X_LDO1_ON_VSEL_MASK, sel); } static unsigned int wm831x_gp_ldo_get_mode(struct regulator_dev *rdev) @@ -243,8 +229,9 @@ static unsigned int wm831x_gp_ldo_get_optimum_mode(struct regulator_dev *rdev, static struct regulator_ops wm831x_gp_ldo_ops = { .list_voltage = wm831x_gp_ldo_list_voltage, + .map_voltage = wm831x_gp_ldo_map_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage = wm831x_gp_ldo_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_suspend_voltage = wm831x_gp_ldo_set_suspend_voltage, .get_mode = wm831x_gp_ldo_get_mode, .set_mode = wm831x_gp_ldo_set_mode, @@ -384,13 +371,10 @@ static int wm831x_aldo_list_voltage(struct regulator_dev *rdev, return -EINVAL; } -static int wm831x_aldo_set_voltage_int(struct regulator_dev *rdev, int reg, - int min_uV, int max_uV, - unsigned *selector) +static int wm831x_aldo_map_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) { - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - struct wm831x *wm831x = ldo->wm831x; - int vsel, ret; + int volt, vsel; if (min_uV < 1000000) vsel = 0; @@ -400,35 +384,26 @@ static int wm831x_aldo_set_voltage_int(struct regulator_dev *rdev, int reg, vsel = ((min_uV - 1700000) / 100000) + WM831X_ALDO_SELECTOR_LOW + 1; - ret = wm831x_aldo_list_voltage(rdev, vsel); - if (ret < 0) - return ret; - if (ret < min_uV || ret > max_uV) + volt = wm831x_aldo_list_voltage(rdev, vsel); + if (volt < min_uV || volt > max_uV) return -EINVAL; - *selector = vsel; - - return wm831x_set_bits(wm831x, reg, WM831X_LDO7_ON_VSEL_MASK, vsel); -} - -static int wm831x_aldo_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, unsigned *selector) -{ - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_LDO_ON_CONTROL; + return vsel; - return wm831x_aldo_set_voltage_int(rdev, reg, min_uV, max_uV, - selector); } static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; - unsigned int selector; + struct wm831x *wm831x = ldo->wm831x; + int sel, reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; + + sel = wm831x_aldo_map_voltage(rdev, uV, uV); + if (sel < 0) + return sel; - return wm831x_aldo_set_voltage_int(rdev, reg, uV, uV, &selector); + return wm831x_set_bits(wm831x, reg, WM831X_LDO7_ON_VSEL_MASK, sel); } static unsigned int wm831x_aldo_get_mode(struct regulator_dev *rdev) @@ -506,8 +481,9 @@ static int wm831x_aldo_get_status(struct regulator_dev *rdev) static struct regulator_ops wm831x_aldo_ops = { .list_voltage = wm831x_aldo_list_voltage, + .map_voltage = wm831x_aldo_map_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage = wm831x_aldo_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_suspend_voltage = wm831x_aldo_set_suspend_voltage, .get_mode = wm831x_aldo_get_mode, .set_mode = wm831x_aldo_set_mode, @@ -628,47 +604,18 @@ static struct platform_driver wm831x_aldo_driver = { #define WM831X_ALIVE_LDO_MAX_SELECTOR 0xf -static int wm831x_alive_ldo_set_voltage_int(struct regulator_dev *rdev, - int reg, - int min_uV, int max_uV, - unsigned *selector) -{ - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - struct wm831x *wm831x = ldo->wm831x; - int vsel, ret; - - vsel = (min_uV - 800000) / 50000; - - ret = regulator_list_voltage_linear(rdev, vsel); - if (ret < 0) - return ret; - if (ret < min_uV || ret > max_uV) - return -EINVAL; - - *selector = vsel; - - return wm831x_set_bits(wm831x, reg, WM831X_LDO11_ON_VSEL_MASK, vsel); -} - -static int wm831x_alive_ldo_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, - unsigned *selector) -{ - struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_ALIVE_LDO_ON_CONTROL; - - return wm831x_alive_ldo_set_voltage_int(rdev, reg, min_uV, max_uV, - selector); -} - static int wm831x_alive_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); - int reg = ldo->base + WM831X_ALIVE_LDO_SLEEP_CONTROL; - unsigned selector; + struct wm831x *wm831x = ldo->wm831x; + int sel, reg = ldo->base + WM831X_ALIVE_LDO_SLEEP_CONTROL; + + sel = regulator_map_voltage_linear(rdev, uV, uV); + if (sel < 0) + return sel; - return wm831x_alive_ldo_set_voltage_int(rdev, reg, uV, uV, &selector); + return wm831x_set_bits(wm831x, reg, WM831X_LDO11_ON_VSEL_MASK, sel); } static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev) @@ -692,7 +639,7 @@ static struct regulator_ops wm831x_alive_ldo_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage = wm831x_alive_ldo_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_suspend_voltage = wm831x_alive_ldo_set_suspend_voltage, .get_status = wm831x_alive_ldo_get_status, -- cgit v1.2.3 From d580cb5e78763eb3d8149e0d60a0a73d355d27c5 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 13 Jun 2012 20:27:58 +0800 Subject: regulator: wm831x-dcdc: Convert wm831x_buckp_ops to regulator_set_voltage_sel_regmap Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm831x-dcdc.c | 44 +++++++++-------------------------------- 1 file changed, 9 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index fbcff56e0114..91b5b0a727ef 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -599,51 +599,25 @@ static struct platform_driver wm831x_buckv_driver = { * BUCKP specifics */ -static int wm831x_buckp_set_voltage_int(struct regulator_dev *rdev, int reg, - int min_uV, int max_uV, int *selector) +static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev); struct wm831x *wm831x = dcdc->wm831x; - u16 vsel; - - if (min_uV <= 34000000) - vsel = (min_uV - 850000) / 25000; - else - return -EINVAL; - - if (regulator_list_voltage_linear(rdev, vsel) > max_uV) - return -EINVAL; - - *selector = vsel; - - return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, vsel); -} - -static int wm831x_buckp_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, - unsigned *selector) -{ - struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev); - u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG; - - return wm831x_buckp_set_voltage_int(rdev, reg, min_uV, max_uV, - selector); -} - -static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, - int uV) -{ - struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev); u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL; - unsigned selector; + int sel; + + sel = regulator_map_voltage_linear(rdev, uV, uV); + if (sel < 0) + return sel; - return wm831x_buckp_set_voltage_int(rdev, reg, uV, uV, &selector); + return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, sel); } static struct regulator_ops wm831x_buckp_ops = { - .set_voltage = wm831x_buckp_set_voltage, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .set_suspend_voltage = wm831x_buckp_set_suspend_voltage, .is_enabled = regulator_is_enabled_regmap, -- cgit v1.2.3 From b5fb77e0188dc85630b395eb0faddc4987be6ddb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 13 Jun 2012 20:29:17 +0800 Subject: regulator: wm831x-dcdc: Convert wm831x_buckv_ops to set_voltage_sel and map_voltage Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/wm831x-dcdc.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 91b5b0a727ef..7413885be01b 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -215,8 +215,8 @@ static int wm831x_buckv_list_voltage(struct regulator_dev *rdev, return -EINVAL; } -static int wm831x_buckv_select_min_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) +static int wm831x_buckv_map_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) { u16 vsel; @@ -251,20 +251,14 @@ static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state) return 0; } -static int wm831x_buckv_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV, unsigned *selector) +static int wm831x_buckv_set_voltage_sel(struct regulator_dev *rdev, + unsigned vsel) { struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev); struct wm831x *wm831x = dcdc->wm831x; int on_reg = dcdc->base + WM831X_DCDC_ON_CONFIG; int dvs_reg = dcdc->base + WM831X_DCDC_DVS_CONTROL; - int vsel, ret; - - vsel = wm831x_buckv_select_min_voltage(rdev, min_uV, max_uV); - if (vsel < 0) - return vsel; - - *selector = vsel; + int ret; /* If this value is already set then do a GPIO update if we can */ if (dcdc->dvs_gpio && dcdc->on_vsel == vsel) @@ -315,7 +309,7 @@ static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev, u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL; int vsel; - vsel = wm831x_buckv_select_min_voltage(rdev, uV, uV); + vsel = wm831x_buckv_map_voltage(rdev, uV, uV); if (vsel < 0) return vsel; @@ -373,9 +367,10 @@ static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev) } static struct regulator_ops wm831x_buckv_ops = { - .set_voltage = wm831x_buckv_set_voltage, + .set_voltage_sel = wm831x_buckv_set_voltage_sel, .get_voltage_sel = wm831x_buckv_get_voltage_sel, .list_voltage = wm831x_buckv_list_voltage, + .map_voltage = wm831x_buckv_map_voltage, .set_suspend_voltage = wm831x_buckv_set_suspend_voltage, .set_current_limit = wm831x_buckv_set_current_limit, .get_current_limit = wm831x_buckv_get_current_limit, -- cgit v1.2.3 From 6f0b2c696ca340cc2da381fe693fda3f8fdb2149 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Mon, 11 Jun 2012 17:41:08 +0530 Subject: regulator: Add ramp_delay configuration to constraints For some hardwares ramp_delay for BUCKs is a configurable parameter which can be configured through DT or board file.This patch adds ramp_delay to regulator constraints and allow user to configure it for regulators which supports this feature, through DT or board file. It will provide two ways of setting the ramp_delay for a regulator: First, by setting it as constraints in board file(for configurable regulators) and set_machine_constraints() will take care of setting it on hardware by calling(the provided) .set_ramp_delay() operation(callback). Second, by setting it as data in regulator_desc(as fixed/default ramp_delay rate) for a regulator in driver. regulator_set_voltage_time_sel() will give preference to constraints->ramp_delay while reading ramp_delay rate for regulator. Similarly users should also take care accordingly while refering ramp_delay rate(in case of implementing their private .set_voltage_time_sel() callbacks for different regulators). [Rewrote subject for 80 columns -- broonie] Signed-off-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/regulator.txt | 1 + drivers/regulator/core.c | 23 ++++++++++++++++++---- drivers/regulator/of_regulator.c | 6 +++++- include/linux/regulator/driver.h | 3 +++ include/linux/regulator/machine.h | 3 +++ 5 files changed, 31 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 5b7a408acdaa..d0a7b1296a36 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -10,6 +10,7 @@ Optional properties: - regulator-always-on: boolean, regulator should never be disabled - regulator-boot-on: bootloader/firmware enabled regulator - -supply: phandle to the parent supply/regulator node +- regulator-ramp-delay: ramp delay for regulator(in mV/uS) Example: diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6ffca9b32388..b615ae6606db 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -967,6 +967,14 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } + if (rdev->constraints->ramp_delay && ops->set_ramp_delay) { + ret = ops->set_ramp_delay(rdev, rdev->constraints->ramp_delay); + if (ret < 0) { + rdev_err(rdev, "failed to set ramp_delay\n"); + goto out; + } + } + print_constraints(rdev); return 0; out: @@ -2296,10 +2304,17 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { - if (rdev->desc->ramp_delay && rdev->desc->uV_step) - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - rdev->desc->ramp_delay * 1000); + if (rdev->desc->uV_step) { + if (rdev->constraints->ramp_delay) + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + rdev->constraints->ramp_delay * 1000); + if (rdev->desc->ramp_delay) + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + rdev->desc->ramp_delay * 1000); + rdev_warn(rdev, "ramp_delay not set\n"); + } return 0; } diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 56593b75168a..e2a731079066 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -20,7 +20,7 @@ static void of_get_regulation_constraints(struct device_node *np, struct regulator_init_data **init_data) { const __be32 *min_uV, *max_uV, *uV_offset; - const __be32 *min_uA, *max_uA; + const __be32 *min_uA, *max_uA, *ramp_delay; struct regulation_constraints *constraints = &(*init_data)->constraints; constraints->name = of_get_property(np, "regulator-name", NULL); @@ -60,6 +60,10 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->always_on = true; else /* status change should be possible if not always on. */ constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS; + + ramp_delay = of_get_property(np, "regulator-ramp-delay", NULL); + if (ramp_delay) + constraints->min_uV = be32_to_cpu(*ramp_delay); } /** diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index ae5c25379237..ddc155d262da 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -67,6 +67,8 @@ enum regulator_status { * * @enable_time: Time taken for the regulator voltage output voltage to * stabilise after being enabled, in microseconds. + * @set_ramp_delay: Set the ramp delay for the regulator. The driver should + * select ramp delay equal to or less than(closest) ramp_delay. * @set_voltage_time_sel: Time taken for the regulator voltage output voltage * to stabilise after being set to a new value, in microseconds. * The function provides the from and to voltage selector, the @@ -113,6 +115,7 @@ struct regulator_ops { /* Time taken to enable or set voltage on the regulator */ int (*enable_time) (struct regulator_dev *); + int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay); int (*set_voltage_time_sel) (struct regulator_dev *, unsigned int old_selector, unsigned int new_selector); diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index b02108446be7..5f37ad3cc172 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -92,6 +92,7 @@ struct regulator_state { * mode. * @initial_state: Suspend state to set by default. * @initial_mode: Mode to set at startup. + * @ramp_delay: Time to settle down after voltage change (unit: mV/us) */ struct regulation_constraints { @@ -125,6 +126,8 @@ struct regulation_constraints { /* mode to set on startup */ unsigned int initial_mode; + unsigned int ramp_delay; + /* constraint flags */ unsigned always_on:1; /* regulator never off when system is on */ unsigned boot_on:1; /* bootloader/firmware enabled regulator */ -- cgit v1.2.3 From 086ccd4379ad6c9c7c7713ef5f61b9d12e995147 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 18 Jun 2012 13:59:02 +0800 Subject: regulator: Fix setting constraints->ramp_delay in of_get_regulation_constraints Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/of_regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index e2a731079066..68dc3d43dd37 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -63,7 +63,7 @@ static void of_get_regulation_constraints(struct device_node *np, ramp_delay = of_get_property(np, "regulator-ramp-delay", NULL); if (ramp_delay) - constraints->min_uV = be32_to_cpu(*ramp_delay); + constraints->ramp_delay = be32_to_cpu(*ramp_delay); } /** -- cgit v1.2.3 From 398715ab9414b3b7741c8239c254111f5016821c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 18 Jun 2012 10:11:28 +0800 Subject: regulator: core: Support table based mapping in regulator_set_voltage_time_sel For table based mapping, we can calculate voltage difference by below equation: abs(rdev->desc->volt_table[new_selector] - rdev->desc->volt_table[old_selector]) Thus we can make regulator_set_voltage_time_sel work for table based mapping. regulator_set_voltage_time_sel() only supports linear or table based mapping. In case it is misused, also warn if neither linear nor table based mapping is used with regulator_set_voltage_time_sel(). Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/core.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index b615ae6606db..73a3d874ca6e 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2296,25 +2296,38 @@ EXPORT_SYMBOL_GPL(regulator_set_voltage_time); * Provided with the starting and target voltage selectors, this function * returns time in microseconds required to rise or fall to this new voltage * - * Drivers providing uV_step in their regulator_desc and ramp_delay in - * regulation_constraints can use this as their set_voltage_time_sel() - * operation. + * Drivers providing uV_step or volt_table in their regulator_desc and + * ramp_delay in regulation_constraints can use this as their + * set_voltage_time_sel() operation. */ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { - if (rdev->desc->uV_step) { - if (rdev->constraints->ramp_delay) - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - rdev->constraints->ramp_delay * 1000); - if (rdev->desc->ramp_delay) - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - rdev->desc->ramp_delay * 1000); + unsigned int ramp_delay = 0; + + if (rdev->constraints->ramp_delay) + ramp_delay = rdev->constraints->ramp_delay; + else if (rdev->desc->ramp_delay) + ramp_delay = rdev->desc->ramp_delay; + + if (ramp_delay == 0) { rdev_warn(rdev, "ramp_delay not set\n"); + return 0; } + + if (rdev->desc->uV_step) { + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + ramp_delay * 1000); + } else if (rdev->desc->volt_table) { + return DIV_ROUND_UP(abs(rdev->desc->volt_table[new_selector] - + rdev->desc->volt_table[old_selector]), + ramp_delay * 1000); + } else { + rdev_warn(rdev, "Unsupported voltage mapping settings\n"); + } + return 0; } -- cgit v1.2.3 From ea38d13fd1666bc030cb1c0feec5b0da2f89f9b2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 18 Jun 2012 14:03:16 +0800 Subject: regulator: core: Change the unit of ramp_delay from mV/uS to uV/uS This change makes it possible to set ramp_delay with 0.xxx mV/uS without truncation issue. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/regulator.txt | 2 +- drivers/regulator/core.c | 4 ++-- include/linux/regulator/driver.h | 2 +- include/linux/regulator/machine.h | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index d0a7b1296a36..bec5d5747411 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -10,7 +10,7 @@ Optional properties: - regulator-always-on: boolean, regulator should never be disabled - regulator-boot-on: bootloader/firmware enabled regulator - -supply: phandle to the parent supply/regulator node -- regulator-ramp-delay: ramp delay for regulator(in mV/uS) +- regulator-ramp-delay: ramp delay for regulator(in uV/uS) Example: diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 73a3d874ca6e..ce0a3462e0de 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2319,11 +2319,11 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, if (rdev->desc->uV_step) { return DIV_ROUND_UP(rdev->desc->uV_step * abs(new_selector - old_selector), - ramp_delay * 1000); + ramp_delay); } else if (rdev->desc->volt_table) { return DIV_ROUND_UP(abs(rdev->desc->volt_table[new_selector] - rdev->desc->volt_table[old_selector]), - ramp_delay * 1000); + ramp_delay); } else { rdev_warn(rdev, "Unsupported voltage mapping settings\n"); } diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index ddc155d262da..84f999ed394b 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -173,7 +173,7 @@ enum regulator_type { * * @min_uV: Voltage given by the lowest selector (if linear mapping) * @uV_step: Voltage increase with each selector (if linear mapping) - * @ramp_delay: Time to settle down after voltage change (unit: mV/us) + * @ramp_delay: Time to settle down after voltage change (unit: uV/us) * @volt_table: Voltage mapping table (if table based mapping) * * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_ diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 5f37ad3cc172..40dd0a394cfa 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -92,7 +92,7 @@ struct regulator_state { * mode. * @initial_state: Suspend state to set by default. * @initial_mode: Mode to set at startup. - * @ramp_delay: Time to settle down after voltage change (unit: mV/us) + * @ramp_delay: Time to settle down after voltage change (unit: uV/us) */ struct regulation_constraints { -- cgit v1.2.3 From 74ea0e599215330e8964401508a5d7ec41ef15b0 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 15 Jun 2012 19:04:33 +0100 Subject: regulator: tps65910: Don't use 0 as NULL Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index 6bf864b4bdf6..e1b01ec82301 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -1136,7 +1136,7 @@ static inline struct tps65910_board *tps65910_parse_dt_reg_data( struct of_regulator_match **tps65910_reg_matches) { *tps65910_reg_matches = NULL; - return 0; + return NULL; } #endif -- cgit v1.2.3 From 0e8e5c34cf1a8beaaf0a6a05c053592693bf8cb4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 4 Jun 2012 17:23:13 +0100 Subject: regulator: twl: Remove references to 32kHz clock from DT bindings Due to the lack of a generic clock API we'd had the 32kHz clock in the regulator driver but this is definitely a Linux-specific thing and now we have a clock API hopefully the code can be moved elsewhere. Try to avoid getting DTs deployed relying on the 32kHz clock by removing it from the bindings, grep seems to tell me it's not currently used anyway. Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/twl-regulator.txt | 1 - drivers/regulator/twl-regulator.c | 2 -- 2 files changed, 3 deletions(-) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/regulator/twl-regulator.txt b/Documentation/devicetree/bindings/regulator/twl-regulator.txt index 0c3395d55ac1..658749b90b97 100644 --- a/Documentation/devicetree/bindings/regulator/twl-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/twl-regulator.txt @@ -15,7 +15,6 @@ For twl6030 regulators/LDOs - "ti,twl6030-vusb" for VUSB LDO - "ti,twl6030-v1v8" for V1V8 LDO - "ti,twl6030-v2v1" for V2V1 LDO - - "ti,twl6030-clk32kg" for CLK32KG RESOURCE - "ti,twl6030-vdd1" for VDD1 SMPS - "ti,twl6030-vdd2" for VDD2 SMPS - "ti,twl6030-vdd3" for VDD3 SMPS diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index a1d07e517db3..ca308cb8e676 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -1106,7 +1106,6 @@ static u8 twl_get_smps_mult(void) #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) #define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label) #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) -#define TWLRES_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLRES, label) #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) static const struct of_device_id twl_of_match[] __devinitconst = { @@ -1154,7 +1153,6 @@ static const struct of_device_id twl_of_match[] __devinitconst = { TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), - TWLRES_OF_MATCH("ti,twl6030-clk32kg", CLK32KG), TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3), TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4), TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO), -- cgit v1.2.3 From 4d146ad7388a9cca2a890d7449aeb767565068d7 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Sat, 9 Jun 2012 20:00:19 -0300 Subject: [media] pms: fix build error in pms_probe() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix a compiler breakage introduced by commit 8173090acb33: drivers/media/video/pms.c: In function ‘pms_probe’: drivers/media/video/pms.c:1047:2: error: implicit declaration of function ‘kzalloc’ [-Werror=implicit-function-declaration] drivers/media/video/pms.c:1116:2: error: implicit declaration of function ‘kfree’ [-Werror=implicit-function-declaration] Signed-off-by: Fengguang Wu Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pms.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index af2d9086d7e8..77f9c92186f4 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 2c19ad43d1a4b0e376a0c764e3c2350afd018fac Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 19 Jun 2012 14:19:57 +0800 Subject: regulator: mc13xxx: Remove mc13xxx_sw_regulator_is_enabled function If .is_enabled callback is not implemented, regulator core assumes that the regulator is always on. Thus we don't need mc13xxx_sw_regulator_is_enabled function. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/mc13892-regulator.c | 1 - drivers/regulator/mc13xxx-regulator-core.c | 6 ------ drivers/regulator/mc13xxx.h | 1 - 3 files changed, 8 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index 6329723b5372..b388b746452e 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -469,7 +469,6 @@ err: } static struct regulator_ops mc13892_sw_regulator_ops = { - .is_enabled = mc13xxx_sw_regulator_is_enabled, .list_voltage = regulator_list_voltage_table, .set_voltage_sel = mc13892_sw_regulator_set_voltage_sel, .get_voltage = mc13892_sw_regulator_get_voltage, diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c index 8a6b050ff5aa..d6eda28ca5d0 100644 --- a/drivers/regulator/mc13xxx-regulator-core.c +++ b/drivers/regulator/mc13xxx-regulator-core.c @@ -170,12 +170,6 @@ struct regulator_ops mc13xxx_fixed_regulator_ops = { }; EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops); -int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev) -{ - return 1; -} -EXPORT_SYMBOL_GPL(mc13xxx_sw_regulator_is_enabled); - #ifdef CONFIG_OF int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev) { diff --git a/drivers/regulator/mc13xxx.h b/drivers/regulator/mc13xxx.h index 9a8f72ce718e..8343a25888d2 100644 --- a/drivers/regulator/mc13xxx.h +++ b/drivers/regulator/mc13xxx.h @@ -33,7 +33,6 @@ struct mc13xxx_regulator_priv { }; extern int mc13xxx_sw_regulator(struct regulator_dev *rdev); -extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev); extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector); extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev); -- cgit v1.2.3 From ba3bd8a301c76838faded10dbe2ecdfdc2eb5d7e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 19 Jun 2012 17:12:18 +0800 Subject: regulator: tps65023: Convert to regulator_list_voltage_table In current mapping table settings, min_uV/max_uV are always equal to volt_table[0] and volt_table[table_len -1]. Thus remove min_uV and max_uV from struct tps_info. The table based mapping with table_len == 1 means fixed voltage. So we don't need fixed flag to differentiate if it is fixed or not. This patch adds DCDC_FIXED_3300000_VSEL_table and DCDC_FIXED_1800000_VSEL_table for fixed voltage cases. So we can convert tps65023_dcdc_ops to regulator_list_voltage_table. This makes the code simpler. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 153 +++++++++++---------------------- 1 file changed, 49 insertions(+), 104 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index df8b70d76f9e..45f4eeb221f7 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -91,48 +91,53 @@ #define TPS65023_MAX_REG_ID TPS65023_LDO_2 /* Supported voltage values for regulators */ -static const u16 VCORE_VSEL_table[] = { - 800, 825, 850, 875, - 900, 925, 950, 975, - 1000, 1025, 1050, 1075, - 1100, 1125, 1150, 1175, - 1200, 1225, 1250, 1275, - 1300, 1325, 1350, 1375, - 1400, 1425, 1450, 1475, - 1500, 1525, 1550, 1600, +static const unsigned int VCORE_VSEL_table[] = { + 800000, 825000, 850000, 875000, + 900000, 925000, 950000, 975000, + 1000000, 1025000, 1050000, 1075000, + 1100000, 1125000, 1150000, 1175000, + 1200000, 1225000, 1250000, 1275000, + 1300000, 1325000, 1350000, 1375000, + 1400000, 1425000, 1450000, 1475000, + 1500000, 1525000, 1550000, 1600000, +}; + +static const unsigned int DCDC_FIXED_3300000_VSEL_table[] = { + 3300000, +}; + +static const unsigned int DCDC_FIXED_1800000_VSEL_table[] = { + 1800000, }; /* Supported voltage values for LDO regulators for tps65020 */ -static const u16 TPS65020_LDO1_VSEL_table[] = { - 1000, 1050, 1100, 1300, - 1800, 2500, 3000, 3300, +static const unsigned int TPS65020_LDO1_VSEL_table[] = { + 1000000, 1050000, 1100000, 1300000, + 1800000, 2500000, 3000000, 3300000, }; -static const u16 TPS65020_LDO2_VSEL_table[] = { - 1000, 1050, 1100, 1300, - 1800, 2500, 3000, 3300, +static const unsigned int TPS65020_LDO2_VSEL_table[] = { + 1000000, 1050000, 1100000, 1300000, + 1800000, 2500000, 3000000, 3300000, }; /* Supported voltage values for LDO regulators * for tps65021 and tps65023 */ -static const u16 TPS65023_LDO1_VSEL_table[] = { - 1000, 1100, 1300, 1800, - 2200, 2600, 2800, 3150, +static const unsigned int TPS65023_LDO1_VSEL_table[] = { + 1000000, 1100000, 1300000, 1800000, + 2200000, 2600000, 2800000, 3150000, }; -static const u16 TPS65023_LDO2_VSEL_table[] = { - 1050, 1200, 1300, 1800, - 2500, 2800, 3000, 3300, +static const unsigned int TPS65023_LDO2_VSEL_table[] = { + 1050000, 1200000, 1300000, 1800000, + 2500000, 2800000, 3000000, 3300000, }; /* Regulator specific details */ struct tps_info { const char *name; - unsigned min_uV; - unsigned max_uV; - bool fixed; u8 table_len; - const u16 *table; + const unsigned int *table; }; /* PMIC details */ @@ -164,9 +169,9 @@ static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) if (ret != 0) return ret; data &= (tps->info[dcdc]->table_len - 1); - return tps->info[dcdc]->table[data] * 1000; + return tps->info[dcdc]->table[data]; } else - return tps->info[dcdc]->min_uV; + return tps->info[dcdc]->table[0]; } static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev, @@ -208,7 +213,7 @@ static int tps65023_ldo_get_voltage(struct regulator_dev *dev) data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); data &= (tps->info[ldo]->table_len - 1); - return tps->info[ldo]->table[data] * 1000; + return tps->info[ldo]->table[data]; } static int tps65023_ldo_set_voltage_sel(struct regulator_dev *dev, @@ -222,39 +227,6 @@ static int tps65023_ldo_set_voltage_sel(struct regulator_dev *dev, selector << TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_index)); } -static int tps65023_dcdc_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct tps_pmic *tps = rdev_get_drvdata(dev); - int dcdc = rdev_get_id(dev); - - if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) - return -EINVAL; - - if (dcdc == tps->core_regulator) { - if (selector >= tps->info[dcdc]->table_len) - return -EINVAL; - else - return tps->info[dcdc]->table[selector] * 1000; - } else - return tps->info[dcdc]->min_uV; -} - -static int tps65023_ldo_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct tps_pmic *tps = rdev_get_drvdata(dev); - int ldo = rdev_get_id(dev); - - if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) - return -EINVAL; - - if (selector >= tps->info[ldo]->table_len) - return -EINVAL; - else - return tps->info[ldo]->table[selector] * 1000; -} - /* Operations permitted on VDCDCx */ static struct regulator_ops tps65023_dcdc_ops = { .is_enabled = regulator_is_enabled_regmap, @@ -262,7 +234,7 @@ static struct regulator_ops tps65023_dcdc_ops = { .disable = regulator_disable_regmap, .get_voltage = tps65023_dcdc_get_voltage, .set_voltage_sel = tps65023_dcdc_set_voltage_sel, - .list_voltage = tps65023_dcdc_list_voltage, + .list_voltage = regulator_list_voltage_table, }; /* Operations permitted on LDOx */ @@ -272,7 +244,7 @@ static struct regulator_ops tps65023_ldo_ops = { .disable = regulator_disable_regmap, .get_voltage = tps65023_ldo_get_voltage, .set_voltage_sel = tps65023_ldo_set_voltage_sel, - .list_voltage = tps65023_ldo_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static struct regmap_config tps65023_regmap_config = { @@ -324,10 +296,8 @@ static int __devinit tps_65023_probe(struct i2c_client *client, tps->desc[i].name = info->name; tps->desc[i].id = i; - if (info->fixed) - tps->desc[i].n_voltages = 1; - else - tps->desc[i].n_voltages = info->table_len; + tps->desc[i].n_voltages = info->table_len; + tps->desc[i].volt_table = info->table; tps->desc[i].ops = (i > TPS65023_DCDC_3 ? &tps65023_ldo_ops : &tps65023_dcdc_ops); tps->desc[i].type = REGULATOR_VOLTAGE; @@ -387,35 +357,26 @@ static int __devexit tps_65023_remove(struct i2c_client *client) static const struct tps_info tps65020_regs[] = { { .name = "VDCDC1", - .min_uV = 3300000, - .max_uV = 3300000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), + .table = DCDC_FIXED_3300000_VSEL_table, }, { .name = "VDCDC2", - .min_uV = 1800000, - .max_uV = 1800000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), + .table = DCDC_FIXED_1800000_VSEL_table, }, { .name = "VDCDC3", - .min_uV = 800000, - .max_uV = 1600000, .table_len = ARRAY_SIZE(VCORE_VSEL_table), .table = VCORE_VSEL_table, }, - { .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3150000, .table_len = ARRAY_SIZE(TPS65020_LDO1_VSEL_table), .table = TPS65020_LDO1_VSEL_table, }, { .name = "LDO2", - .min_uV = 1050000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(TPS65020_LDO2_VSEL_table), .table = TPS65020_LDO2_VSEL_table, }, @@ -424,34 +385,26 @@ static const struct tps_info tps65020_regs[] = { static const struct tps_info tps65021_regs[] = { { .name = "VDCDC1", - .min_uV = 3300000, - .max_uV = 3300000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), + .table = DCDC_FIXED_3300000_VSEL_table, }, { .name = "VDCDC2", - .min_uV = 1800000, - .max_uV = 1800000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), + .table = DCDC_FIXED_1800000_VSEL_table, }, { .name = "VDCDC3", - .min_uV = 800000, - .max_uV = 1600000, .table_len = ARRAY_SIZE(VCORE_VSEL_table), .table = VCORE_VSEL_table, }, { .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3150000, .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table), .table = TPS65023_LDO1_VSEL_table, }, { .name = "LDO2", - .min_uV = 1050000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table), .table = TPS65023_LDO2_VSEL_table, }, @@ -460,34 +413,26 @@ static const struct tps_info tps65021_regs[] = { static const struct tps_info tps65023_regs[] = { { .name = "VDCDC1", - .min_uV = 800000, - .max_uV = 1600000, .table_len = ARRAY_SIZE(VCORE_VSEL_table), .table = VCORE_VSEL_table, }, { .name = "VDCDC2", - .min_uV = 3300000, - .max_uV = 3300000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), + .table = DCDC_FIXED_3300000_VSEL_table, }, { .name = "VDCDC3", - .min_uV = 1800000, - .max_uV = 1800000, - .fixed = 1, + .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), + .table = DCDC_FIXED_1800000_VSEL_table, }, { .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3150000, .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table), .table = TPS65023_LDO1_VSEL_table, }, { .name = "LDO2", - .min_uV = 1050000, - .max_uV = 3300000, .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table), .table = TPS65023_LDO2_VSEL_table, }, -- cgit v1.2.3 From a133829e66d25e1ce293a30bcc3fb8eb653a1519 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 19 Jun 2012 17:13:13 +0800 Subject: regulator: tps65023: Convert to get_voltage_sel Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 45f4eeb221f7..4b6f1b2b9481 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -155,7 +155,7 @@ struct tps_driver_data { u8 core_regulator; }; -static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) +static int tps65023_dcdc_get_voltage_sel(struct regulator_dev *dev) { struct tps_pmic *tps = rdev_get_drvdata(dev); int ret; @@ -169,9 +169,9 @@ static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) if (ret != 0) return ret; data &= (tps->info[dcdc]->table_len - 1); - return tps->info[dcdc]->table[data]; + return data; } else - return tps->info[dcdc]->table[0]; + return 0; } static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev, @@ -198,7 +198,7 @@ out: return ret; } -static int tps65023_ldo_get_voltage(struct regulator_dev *dev) +static int tps65023_ldo_get_voltage_sel(struct regulator_dev *dev) { struct tps_pmic *tps = rdev_get_drvdata(dev); int data, ldo = rdev_get_id(dev); @@ -213,7 +213,7 @@ static int tps65023_ldo_get_voltage(struct regulator_dev *dev) data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); data &= (tps->info[ldo]->table_len - 1); - return tps->info[ldo]->table[data]; + return data; } static int tps65023_ldo_set_voltage_sel(struct regulator_dev *dev, @@ -232,7 +232,7 @@ static struct regulator_ops tps65023_dcdc_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .get_voltage = tps65023_dcdc_get_voltage, + .get_voltage_sel = tps65023_dcdc_get_voltage_sel, .set_voltage_sel = tps65023_dcdc_set_voltage_sel, .list_voltage = regulator_list_voltage_table, }; @@ -242,7 +242,7 @@ static struct regulator_ops tps65023_ldo_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .get_voltage = tps65023_ldo_get_voltage, + .get_voltage_sel = tps65023_ldo_get_voltage_sel, .set_voltage_sel = tps65023_ldo_set_voltage_sel, .list_voltage = regulator_list_voltage_table, }; -- cgit v1.2.3 From 852abad238da723efac29f3e78dd768c18d6a062 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Tue, 19 Jun 2012 13:23:42 +0530 Subject: regulator: max77686: Convert driver to use regulator_set_voltage_time_sel. This patch converts the driver to use regulator_set_voltage_time_sel() as .set_voltage_time_sel() callback. It also sets ramp_delay as 100000 uV/us for LDOs & normal BUCKs and 27500 uV/us(default/reset value) for BUCKs[2/3/4] in regulator_desc[]. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 42 +++++++++--------------------------------- 1 file changed, 9 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 2dd4ac91d283..a29eee33dd7b 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -40,6 +40,8 @@ #define MAX77686_LDO_LOW_UVSTEP 25000 #define MAX77686_BUCK_MINUV 750000 #define MAX77686_BUCK_UVSTEP 50000 +#define MAX77686_RAMP_DELAY 100000 /* uV/us */ +#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */ #define MAX77686_DVS_MINUV 600000 #define MAX77686_DVS_UVSTEP 12500 @@ -66,28 +68,8 @@ struct max77686_data { struct device *dev; struct max77686_dev *iodev; struct regulator_dev **rdev; - int ramp_delay; /* in mV/us */ }; -static int max77686_set_dvs_voltage_time_sel(struct regulator_dev *rdev, - unsigned int old_selector, unsigned int new_selector) -{ - struct max77686_data *max77686 = rdev_get_drvdata(rdev); - int ramp_rate[] = {13, 27, 55, 100}; - - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - ramp_rate[max77686->ramp_delay] * 1000); -} - -static int max77686_set_voltage_time_sel(struct regulator_dev *rdev, - unsigned int old_selector, unsigned int new_selector) -{ - /* Unconditionally 100 mV/us */ - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), 100 * 1000); -} - static struct regulator_ops max77686_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, @@ -96,7 +78,7 @@ static struct regulator_ops max77686_ops = { .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = max77686_set_voltage_time_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, }; static struct regulator_ops max77686_buck_dvs_ops = { @@ -107,7 +89,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = max77686_set_dvs_voltage_time_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, }; #define regulator_desc_ldo(num) { \ @@ -118,6 +100,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .owner = THIS_MODULE, \ .min_uV = MAX77686_LDO_MINUV, \ .uV_step = MAX77686_LDO_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ .n_voltages = MAX77686_VSEL_MASK + 1, \ .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ .vsel_mask = MAX77686_VSEL_MASK, \ @@ -133,6 +116,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .owner = THIS_MODULE, \ .min_uV = MAX77686_LDO_LOW_MINUV, \ .uV_step = MAX77686_LDO_LOW_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ .n_voltages = MAX77686_VSEL_MASK + 1, \ .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ .vsel_mask = MAX77686_VSEL_MASK, \ @@ -148,6 +132,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .owner = THIS_MODULE, \ .min_uV = MAX77686_BUCK_MINUV, \ .uV_step = MAX77686_BUCK_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ .n_voltages = MAX77686_VSEL_MASK + 1, \ .vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \ .vsel_mask = MAX77686_VSEL_MASK, \ @@ -162,6 +147,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .owner = THIS_MODULE, \ .min_uV = MAX77686_BUCK_MINUV, \ .uV_step = MAX77686_BUCK_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ .n_voltages = MAX77686_VSEL_MASK + 1, \ .vsel_reg = MAX77686_REG_BUCK1OUT, \ .vsel_mask = MAX77686_VSEL_MASK, \ @@ -176,6 +162,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .owner = THIS_MODULE, \ .min_uV = MAX77686_DVS_MINUV, \ .uV_step = MAX77686_DVS_UVSTEP, \ + .ramp_delay = MAX77686_DVS_RAMP_DELAY, \ .n_voltages = MAX77686_DVS_VSEL_MASK + 1, \ .vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \ .vsel_mask = MAX77686_DVS_VSEL_MASK, \ @@ -255,17 +242,6 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) max77686->iodev = iodev; platform_set_drvdata(pdev, max77686); - max77686->ramp_delay = RAMP_RATE_NO_CTRL; /* Set 0x3 for RAMP */ - regmap_update_bits(max77686->iodev->regmap, - MAX77686_REG_BUCK2CTRL1, MAX77686_RAMP_RATE_MASK, - max77686->ramp_delay << 6); - regmap_update_bits(max77686->iodev->regmap, - MAX77686_REG_BUCK3CTRL1, MAX77686_RAMP_RATE_MASK, - max77686->ramp_delay << 6); - regmap_update_bits(max77686->iodev->regmap, - MAX77686_REG_BUCK4CTRL1, MAX77686_RAMP_RATE_MASK, - max77686->ramp_delay << 6); - for (i = 0; i < MAX77686_REGULATORS; i++) { config.dev = max77686->dev; config.regmap = iodev->regmap; -- cgit v1.2.3 From c848bc8538cd29e92223d5e72e8fb60e6f2e176e Mon Sep 17 00:00:00 2001 From: Sangbeom Kim Date: Mon, 18 Jun 2012 09:49:20 +0900 Subject: regulator: s5m8767a: Support AP watchdog reset operation The S5M8767A can't know status of ap reset. So, After AP watchdog reset, AP can't boot normally. Problem can be happened like below condition. - AP Bootable lowest voltage(vdd_arm): 0.9v - AP DVFS voltage table: 0.8v, 0.9v, 1.0v - During AP works on lowest voltage(0.8V), watchdog reset is asserted - AP can't boot, because vdd arm is still 0.8v Solution - Basic concept: After ap watchdog reset, GPIO configuration is changed by default value - S5M8767A has function of voltage control with gpio (8 levels with 3 gpios) - Set bootable voltage on level 0 -> can work with default gpio configuration - In the probing, Change voltage control level from level 0 to level 1 - Execute normal dvfs operation on level 1 - After watchdog reset, ap gpio is set by default value - PMIC operation mode is changed by ap reset (level1 -> level0) - Regardless of previous vdd_arm voltage, AP always can be booted. Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 137 ++++++++++++++++++++++++----------- include/linux/mfd/s5m87xx/s5m-core.h | 5 ++ 2 files changed, 98 insertions(+), 44 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index a4a3c7eefd1f..fd89574c405c 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -41,6 +41,7 @@ struct s5m8767_info { u8 buck3_vol[8]; u8 buck4_vol[8]; int buck_gpios[3]; + int buck_ds[3]; int buck_gpioindex; }; @@ -283,17 +284,17 @@ static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg) reg = S5M8767_REG_BUCK1CTRL2; break; case S5M8767_BUCK2: - reg = S5M8767_REG_BUCK2DVS1; + reg = S5M8767_REG_BUCK2DVS2; if (s5m8767->buck2_gpiodvs) reg += s5m8767->buck_gpioindex; break; case S5M8767_BUCK3: - reg = S5M8767_REG_BUCK3DVS1; + reg = S5M8767_REG_BUCK3DVS2; if (s5m8767->buck3_gpiodvs) reg += s5m8767->buck_gpioindex; break; case S5M8767_BUCK4: - reg = S5M8767_REG_BUCK4DVS1; + reg = S5M8767_REG_BUCK4DVS2; if (s5m8767->buck4_gpiodvs) reg += s5m8767->buck_gpioindex; break; @@ -512,7 +513,7 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) struct regulator_config config = { }; struct regulator_dev **rdev; struct s5m8767_info *s5m8767; - int i, ret, size; + int i, ret, size, buck_init; if (!pdata) { dev_err(pdev->dev.parent, "Platform data not supplied\n"); @@ -563,12 +564,37 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) s5m8767->buck_gpios[0] = pdata->buck_gpios[0]; s5m8767->buck_gpios[1] = pdata->buck_gpios[1]; s5m8767->buck_gpios[2] = pdata->buck_gpios[2]; + s5m8767->buck_ds[0] = pdata->buck_ds[0]; + s5m8767->buck_ds[1] = pdata->buck_ds[1]; + s5m8767->buck_ds[2] = pdata->buck_ds[2]; + s5m8767->ramp_delay = pdata->buck_ramp_delay; s5m8767->buck2_ramp = pdata->buck2_ramp_enable; s5m8767->buck3_ramp = pdata->buck3_ramp_enable; s5m8767->buck4_ramp = pdata->buck4_ramp_enable; s5m8767->opmode = pdata->opmode; + buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, + pdata->buck2_init, + pdata->buck2_init + + buck_voltage_val2.step); + + s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS2, buck_init); + + buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, + pdata->buck3_init, + pdata->buck3_init + + buck_voltage_val2.step); + + s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS2, buck_init); + + buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, + pdata->buck4_init, + pdata->buck4_init + + buck_voltage_val2.step); + + s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS2, buck_init); + for (i = 0; i < 8; i++) { if (s5m8767->buck2_gpiodvs) { s5m8767->buck2_vol[i] = @@ -598,48 +624,71 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) } } - if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || - pdata->buck4_gpiodvs) { - if (gpio_is_valid(pdata->buck_gpios[0]) && - gpio_is_valid(pdata->buck_gpios[1]) && - gpio_is_valid(pdata->buck_gpios[2])) { - ret = gpio_request(pdata->buck_gpios[0], - "S5M8767 SET1"); - if (ret == -EBUSY) - dev_warn(&pdev->dev, "Duplicated gpio request for SET1\n"); - - ret = gpio_request(pdata->buck_gpios[1], - "S5M8767 SET2"); - if (ret == -EBUSY) - dev_warn(&pdev->dev, "Duplicated gpio request for SET2\n"); - - ret = gpio_request(pdata->buck_gpios[2], - "S5M8767 SET3"); - if (ret == -EBUSY) - dev_warn(&pdev->dev, "Duplicated gpio request for SET3\n"); - /* SET1 GPIO */ - gpio_direction_output(pdata->buck_gpios[0], - (s5m8767->buck_gpioindex >> 2) & 0x1); - /* SET2 GPIO */ - gpio_direction_output(pdata->buck_gpios[1], - (s5m8767->buck_gpioindex >> 1) & 0x1); - /* SET3 GPIO */ - gpio_direction_output(pdata->buck_gpios[2], - (s5m8767->buck_gpioindex >> 0) & 0x1); - ret = 0; - } else { - dev_err(&pdev->dev, "GPIO NOT VALID\n"); - ret = -EINVAL; - return ret; - } + if (gpio_is_valid(pdata->buck_gpios[0]) && + gpio_is_valid(pdata->buck_gpios[1]) && + gpio_is_valid(pdata->buck_gpios[2])) { + ret = gpio_request(pdata->buck_gpios[0], "S5M8767 SET1"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request" + " for SET1\n"); + + ret = gpio_request(pdata->buck_gpios[1], "S5M8767 SET2"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request" + " for SET2\n"); + + ret = gpio_request(pdata->buck_gpios[2], "S5M8767 SET3"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request" + " for SET3\n"); + /* SET1 GPIO */ + gpio_direction_output(pdata->buck_gpios[0], + (s5m8767->buck_gpioindex >> 2) & 0x1); + /* SET2 GPIO */ + gpio_direction_output(pdata->buck_gpios[1], + (s5m8767->buck_gpioindex >> 1) & 0x1); + /* SET3 GPIO */ + gpio_direction_output(pdata->buck_gpios[2], + (s5m8767->buck_gpioindex >> 0) & 0x1); + ret = 0; + + } else { + dev_err(&pdev->dev, "GPIO NOT VALID\n"); + ret = -EINVAL; + return ret; } - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, - (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1); - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, - (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1); - s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, - (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1); + ret = gpio_request(pdata->buck_ds[0], "S5M8767 DS2"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request for DS2\n"); + + ret = gpio_request(pdata->buck_ds[1], "S5M8767 DS3"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request for DS3\n"); + + ret = gpio_request(pdata->buck_ds[2], "S5M8767 DS4"); + if (ret == -EBUSY) + dev_warn(&pdev->dev, "Duplicated gpio request for DS4\n"); + + /* DS2 GPIO */ + gpio_direction_output(pdata->buck_ds[0], 0x0); + /* DS3 GPIO */ + gpio_direction_output(pdata->buck_ds[1], 0x0); + /* DS4 GPIO */ + gpio_direction_output(pdata->buck_ds[2], 0x0); + + if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || + pdata->buck4_gpiodvs) { + s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, + (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), + 1 << 1); + s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, + (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), + 1 << 1); + s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, + (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), + 1 << 1); + } /* Initialize GPIO DVS registers */ for (i = 0; i < 8; i++) { diff --git a/include/linux/mfd/s5m87xx/s5m-core.h b/include/linux/mfd/s5m87xx/s5m-core.h index 21603b42f22f..0b2e0ed309f5 100644 --- a/include/linux/mfd/s5m87xx/s5m-core.h +++ b/include/linux/mfd/s5m87xx/s5m-core.h @@ -347,6 +347,7 @@ struct s5m_platform_data { bool buck_voltage_lock; int buck_gpios[3]; + int buck_ds[3]; int buck2_voltage[8]; bool buck2_gpiodvs; int buck3_voltage[8]; @@ -369,6 +370,10 @@ struct s5m_platform_data { bool buck2_ramp_enable; bool buck3_ramp_enable; bool buck4_ramp_enable; + + int buck2_init; + int buck3_init; + int buck4_init; }; #endif /* __LINUX_MFD_S5M_CORE_H */ -- cgit v1.2.3 From e90a84473ee941c0056c773923e9cc90a550c266 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 19 Jun 2012 17:14:31 +0800 Subject: regulator: tps65023: Convert tps65023_ldo_ops to regulator_[get|set]_voltage_sel_regmap Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 51 +++++++++------------------------- 1 file changed, 13 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 4b6f1b2b9481..6998d579d07b 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -69,10 +69,6 @@ #define TPS65023_REG_CTRL2_DCDC1 BIT(1) #define TPS65023_REG_CTRL2_DCDC3 BIT(0) -/* LDO_CTRL bitfields */ -#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) -#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0x0F << ((ldo_id)*4)) - /* Number of step-down converters available */ #define TPS65023_NUM_DCDC 3 /* Number of LDO voltage regulators available */ @@ -198,35 +194,6 @@ out: return ret; } -static int tps65023_ldo_get_voltage_sel(struct regulator_dev *dev) -{ - struct tps_pmic *tps = rdev_get_drvdata(dev); - int data, ldo = rdev_get_id(dev); - int ret; - - if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) - return -EINVAL; - - ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data); - if (ret != 0) - return ret; - - data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); - data &= (tps->info[ldo]->table_len - 1); - return data; -} - -static int tps65023_ldo_set_voltage_sel(struct regulator_dev *dev, - unsigned selector) -{ - struct tps_pmic *tps = rdev_get_drvdata(dev); - int ldo_index = rdev_get_id(dev) - TPS65023_LDO_1; - - return regmap_update_bits(tps->regmap, TPS65023_REG_LDO_CTRL, - TPS65023_LDO_CTRL_LDOx_MASK(ldo_index), - selector << TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_index)); -} - /* Operations permitted on VDCDCx */ static struct regulator_ops tps65023_dcdc_ops = { .is_enabled = regulator_is_enabled_regmap, @@ -242,8 +209,8 @@ static struct regulator_ops tps65023_ldo_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .get_voltage_sel = tps65023_ldo_get_voltage_sel, - .set_voltage_sel = tps65023_ldo_set_voltage_sel, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_table, }; @@ -304,13 +271,21 @@ static int __devinit tps_65023_probe(struct i2c_client *client, tps->desc[i].owner = THIS_MODULE; tps->desc[i].enable_reg = TPS65023_REG_REG_CTRL; - if (i == TPS65023_LDO_1) + switch (i) { + case TPS65023_LDO_1: + tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL; + tps->desc[i].vsel_mask = 0x07; tps->desc[i].enable_mask = 1 << 1; - else if (i == TPS65023_LDO_2) + break; + case TPS65023_LDO_2: + tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL; + tps->desc[i].vsel_mask = 0x70; tps->desc[i].enable_mask = 1 << 2; - else /* DCDCx */ + break; + default: /* DCDCx */ tps->desc[i].enable_mask = 1 << (TPS65023_NUM_REGULATOR - i); + } config.dev = &client->dev; config.init_data = init_data; -- cgit v1.2.3 From af8b5fc31099abd7f3b297332c9e280ec0b30a71 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Tue, 19 Jun 2012 07:08:22 +0000 Subject: regulator: add new regulator driver for lp872x This driver supports TI/National LP8720, LP8725 PMIC. Signed-off-by: Milo(Woogyom) Kim Reviewed-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 7 + drivers/regulator/Makefile | 1 + drivers/regulator/lp872x.c | 957 +++++++++++++++++++++++++++++++++++++++ include/linux/regulator/lp872x.h | 90 ++++ 4 files changed, 1055 insertions(+) create mode 100644 drivers/regulator/lp872x.c create mode 100644 include/linux/regulator/lp872x.h (limited to 'drivers') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 00ffe05d8026..870f7300b156 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -224,6 +224,13 @@ config REGULATOR_LP3972 Say Y here to support the voltage regulators and convertors on National Semiconductors LP3972 PMIC +config REGULATOR_LP872X + tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators" + depends on I2C + select REGMAP_I2C + help + This driver supports LP8720/LP8725 PMIC + config REGULATOR_PCF50633 tristate "NXP PCF50633 regulator driver" depends on MFD_PCF50633 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index d8544539efec..e6f700748a3b 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o +obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c new file mode 100644 index 000000000000..d51d09852041 --- /dev/null +++ b/drivers/regulator/lp872x.c @@ -0,0 +1,957 @@ +/* + * Copyright 2012 Texas Instruments + * + * Author: Milo(Woogyom) Kim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Registers : LP8720/8725 shared */ +#define LP872X_GENERAL_CFG 0x00 +#define LP872X_LDO1_VOUT 0x01 +#define LP872X_LDO2_VOUT 0x02 +#define LP872X_LDO3_VOUT 0x03 +#define LP872X_LDO4_VOUT 0x04 +#define LP872X_LDO5_VOUT 0x05 + +/* Registers : LP8720 */ +#define LP8720_BUCK_VOUT1 0x06 +#define LP8720_BUCK_VOUT2 0x07 +#define LP8720_ENABLE 0x08 + +/* Registers : LP8725 */ +#define LP8725_LILO1_VOUT 0x06 +#define LP8725_LILO2_VOUT 0x07 +#define LP8725_BUCK1_VOUT1 0x08 +#define LP8725_BUCK1_VOUT2 0x09 +#define LP8725_BUCK2_VOUT1 0x0A +#define LP8725_BUCK2_VOUT2 0x0B +#define LP8725_BUCK_CTRL 0x0C +#define LP8725_LDO_CTRL 0x0D + +/* Mask/shift : LP8720/LP8725 shared */ +#define LP872X_VOUT_M 0x1F +#define LP872X_START_DELAY_M 0xE0 +#define LP872X_START_DELAY_S 5 +#define LP872X_EN_LDO1_M BIT(0) +#define LP872X_EN_LDO2_M BIT(1) +#define LP872X_EN_LDO3_M BIT(2) +#define LP872X_EN_LDO4_M BIT(3) +#define LP872X_EN_LDO5_M BIT(4) + +/* Mask/shift : LP8720 */ +#define LP8720_TIMESTEP_S 0 /* Addr 00h */ +#define LP8720_TIMESTEP_M BIT(0) +#define LP8720_EXT_DVS_M BIT(2) +#define LP8720_BUCK_FPWM_S 5 /* Addr 07h */ +#define LP8720_BUCK_FPWM_M BIT(5) +#define LP8720_EN_BUCK_M BIT(5) /* Addr 08h */ +#define LP8720_DVS_SEL_M BIT(7) + +/* Mask/shift : LP8725 */ +#define LP8725_TIMESTEP_M 0xC0 /* Addr 00h */ +#define LP8725_TIMESTEP_S 6 +#define LP8725_BUCK1_EN_M BIT(0) +#define LP8725_DVS1_M BIT(2) +#define LP8725_DVS2_M BIT(3) +#define LP8725_BUCK2_EN_M BIT(4) +#define LP8725_BUCK_CL_M 0xC0 /* Addr 09h, 0Bh */ +#define LP8725_BUCK_CL_S 6 +#define LP8725_BUCK1_FPWM_S 1 /* Addr 0Ch */ +#define LP8725_BUCK1_FPWM_M BIT(1) +#define LP8725_BUCK2_FPWM_S 5 +#define LP8725_BUCK2_FPWM_M BIT(5) +#define LP8725_EN_LILO1_M BIT(5) /* Addr 0Dh */ +#define LP8725_EN_LILO2_M BIT(6) + +/* PWM mode */ +#define LP872X_FORCE_PWM 1 +#define LP872X_AUTO_PWM 0 + +#define LP8720_NUM_REGULATORS 6 +#define LP8725_NUM_REGULATORS 9 +#define EXTERN_DVS_USED 0 +#define MAX_DELAY 6 + +/* dump registers in regmap-debugfs */ +#define MAX_REGISTERS 0x0F + +enum lp872x_id { + LP8720, + LP8725, +}; + +struct lp872x { + struct regmap *regmap; + struct device *dev; + enum lp872x_id chipid; + struct lp872x_platform_data *pdata; + struct regulator_dev **regulators; + int num_regulators; + enum lp872x_dvs_state dvs_pin; + int dvs_gpio; +}; + +/* LP8720/LP8725 shared voltage table for LDOs */ +static const unsigned int lp872x_ldo_vtbl[] = { + 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, + 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 2000000, + 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2650000, 2700000, + 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3100000, 3300000, +}; + +/* LP8720 LDO4 voltage table */ +static const unsigned int lp8720_ldo4_vtbl[] = { + 800000, 850000, 900000, 1000000, 1100000, 1200000, 1250000, 1300000, + 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, + 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, + 2400000, 2500000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, +}; + +/* LP8725 LILO(Low Input Low Output) voltage table */ +static const unsigned int lp8725_lilo_vtbl[] = { + 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, + 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, + 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, + 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000, +}; + +/* LP8720 BUCK voltage table */ +#define EXT_R 0 /* external resistor divider */ +static const unsigned int lp8720_buck_vtbl[] = { + EXT_R, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, + 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, + 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, + 1950000, 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, +}; + +/* LP8725 BUCK voltage table */ +static const unsigned int lp8725_buck_vtbl[] = { + 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, + 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, + 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, + 2400000, 2500000, 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, +}; + +/* LP8725 BUCK current limit */ +static const unsigned int lp8725_buck_uA[] = { + 460000, 780000, 1050000, 1370000, +}; + +static int lp872x_read_byte(struct lp872x *lp, u8 addr, u8 *data) +{ + int ret; + unsigned int val; + + ret = regmap_read(lp->regmap, addr, &val); + if (ret < 0) { + dev_err(lp->dev, "failed to read 0x%.2x\n", addr); + return ret; + } + + *data = (u8)val; + return 0; +} + +static inline int lp872x_write_byte(struct lp872x *lp, u8 addr, u8 data) +{ + return regmap_write(lp->regmap, addr, data); +} + +static inline int lp872x_update_bits(struct lp872x *lp, u8 addr, + unsigned int mask, u8 data) +{ + return regmap_update_bits(lp->regmap, addr, mask, data); +} + +static int _rdev_to_offset(struct regulator_dev *rdev) +{ + enum lp872x_regulator_id id = rdev_get_id(rdev); + + switch (id) { + case LP8720_ID_LDO1 ... LP8720_ID_BUCK: + return id; + case LP8725_ID_LDO1 ... LP8725_ID_BUCK2: + return id - LP8725_ID_BASE; + default: + return -EINVAL; + } +} + +static int lp872x_get_timestep_usec(struct lp872x *lp) +{ + enum lp872x_id chip = lp->chipid; + u8 val, mask, shift; + int *time_usec, size, ret; + int lp8720_time_usec[] = { 25, 50 }; + int lp8725_time_usec[] = { 32, 64, 128, 256 }; + + switch (chip) { + case LP8720: + mask = LP8720_TIMESTEP_M; + shift = LP8720_TIMESTEP_S; + time_usec = &lp8720_time_usec[0]; + size = ARRAY_SIZE(lp8720_time_usec); + break; + case LP8725: + mask = LP8725_TIMESTEP_M; + shift = LP8725_TIMESTEP_S; + time_usec = &lp8725_time_usec[0]; + size = ARRAY_SIZE(lp8725_time_usec); + break; + default: + return -EINVAL; + } + + ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val); + if (ret) + return -EINVAL; + + val = (val & mask) >> shift; + if (val >= size) + return -EINVAL; + + return *(time_usec + val); +} + +static int lp872x_regulator_enable_time(struct regulator_dev *rdev) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id regulator = rdev_get_id(rdev); + int time_step_us = lp872x_get_timestep_usec(lp); + int ret, offset; + u8 addr, val; + + if (time_step_us < 0) + return -EINVAL; + + switch (regulator) { + case LP8720_ID_LDO1 ... LP8720_ID_LDO5: + case LP8725_ID_LDO1 ... LP8725_ID_LILO2: + offset = _rdev_to_offset(rdev); + if (offset < 0) + return -EINVAL; + + addr = LP872X_LDO1_VOUT + offset; + break; + case LP8720_ID_BUCK: + addr = LP8720_BUCK_VOUT1; + break; + case LP8725_ID_BUCK1: + addr = LP8725_BUCK1_VOUT1; + break; + case LP8725_ID_BUCK2: + addr = LP8725_BUCK2_VOUT1; + break; + default: + return -EINVAL; + } + + ret = lp872x_read_byte(lp, addr, &val); + if (ret) + return ret; + + val = (val & LP872X_START_DELAY_M) >> LP872X_START_DELAY_S; + + return val > MAX_DELAY ? 0 : val * time_step_us; +} + +static void lp872x_set_dvs(struct lp872x *lp, int gpio) +{ + enum lp872x_dvs_sel dvs_sel = lp->pdata->dvs->vsel; + enum lp872x_dvs_state state; + + state = dvs_sel == SEL_V1 ? DVS_HIGH : DVS_LOW; + gpio_set_value(gpio, state); + lp->dvs_pin = state; +} + +static u8 lp872x_select_buck_vout_addr(struct lp872x *lp, + enum lp872x_regulator_id buck) +{ + u8 val, addr; + + if (lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val)) + return 0; + + switch (buck) { + case LP8720_ID_BUCK: + if (val & LP8720_EXT_DVS_M) { + addr = (lp->dvs_pin == DVS_HIGH) ? + LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; + } else { + if (lp872x_read_byte(lp, LP8720_ENABLE, &val)) + return 0; + + addr = val & LP8720_DVS_SEL_M ? + LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; + } + break; + case LP8725_ID_BUCK1: + if (val & LP8725_DVS1_M) + addr = LP8725_BUCK1_VOUT1; + else + addr = (lp->dvs_pin == DVS_HIGH) ? + LP8725_BUCK1_VOUT1 : LP8725_BUCK1_VOUT2; + break; + case LP8725_ID_BUCK2: + addr = val & LP8725_DVS2_M ? + LP8725_BUCK2_VOUT1 : LP8725_BUCK2_VOUT2; + break; + default: + return 0; + } + + return addr; +} + +static bool lp872x_is_valid_buck_addr(u8 addr) +{ + switch (addr) { + case LP8720_BUCK_VOUT1: + case LP8720_BUCK_VOUT2: + case LP8725_BUCK1_VOUT1: + case LP8725_BUCK1_VOUT2: + case LP8725_BUCK2_VOUT1: + case LP8725_BUCK2_VOUT2: + return true; + default: + return false; + } +} + +static int lp872x_buck_set_voltage_sel(struct regulator_dev *rdev, + unsigned selector) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + u8 addr, mask = LP872X_VOUT_M; + struct lp872x_dvs *dvs = lp->pdata->dvs; + + if (dvs && gpio_is_valid(dvs->gpio)) + lp872x_set_dvs(lp, dvs->gpio); + + addr = lp872x_select_buck_vout_addr(lp, buck); + if (!lp872x_is_valid_buck_addr(addr)) + return -EINVAL; + + return lp872x_update_bits(lp, addr, mask, selector); +} + +static int lp872x_buck_get_voltage_sel(struct regulator_dev *rdev) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + u8 addr, val; + int ret; + + addr = lp872x_select_buck_vout_addr(lp, buck); + if (!lp872x_is_valid_buck_addr(addr)) + return -EINVAL; + + ret = lp872x_read_byte(lp, addr, &val); + if (ret) + return ret; + + return val & LP872X_VOUT_M; +} + +static int lp8725_buck_set_current_limit(struct regulator_dev *rdev, + int min_uA, int max_uA) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + int i, max = ARRAY_SIZE(lp8725_buck_uA); + u8 addr, val; + + switch (buck) { + case LP8725_ID_BUCK1: + addr = LP8725_BUCK1_VOUT2; + break; + case LP8725_ID_BUCK2: + addr = LP8725_BUCK2_VOUT2; + break; + default: + return -EINVAL; + } + + for (i = 0 ; i < max ; i++) + if (lp8725_buck_uA[i] >= min_uA && + lp8725_buck_uA[i] <= max_uA) + break; + + if (i == max) + return -EINVAL; + + val = i << LP8725_BUCK_CL_S; + + return lp872x_update_bits(lp, addr, LP8725_BUCK_CL_M, val); +} + +static int lp8725_buck_get_current_limit(struct regulator_dev *rdev) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + u8 addr, val; + int ret; + + switch (buck) { + case LP8725_ID_BUCK1: + addr = LP8725_BUCK1_VOUT2; + break; + case LP8725_ID_BUCK2: + addr = LP8725_BUCK2_VOUT2; + break; + default: + return -EINVAL; + } + + ret = lp872x_read_byte(lp, addr, &val); + if (ret) + return ret; + + val = (val & LP8725_BUCK_CL_M) >> LP8725_BUCK_CL_S; + + return (val < ARRAY_SIZE(lp8725_buck_uA)) ? + lp8725_buck_uA[val] : -EINVAL; +} + +static int lp872x_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + u8 addr, mask, shift, val; + + switch (buck) { + case LP8720_ID_BUCK: + addr = LP8720_BUCK_VOUT2; + mask = LP8720_BUCK_FPWM_M; + shift = LP8720_BUCK_FPWM_S; + break; + case LP8725_ID_BUCK1: + addr = LP8725_BUCK_CTRL; + mask = LP8725_BUCK1_FPWM_M; + shift = LP8725_BUCK1_FPWM_S; + break; + case LP8725_ID_BUCK2: + addr = LP8725_BUCK_CTRL; + mask = LP8725_BUCK2_FPWM_M; + shift = LP8725_BUCK2_FPWM_S; + break; + default: + return -EINVAL; + } + + if (mode == REGULATOR_MODE_FAST) + val = LP872X_FORCE_PWM << shift; + else if (mode == REGULATOR_MODE_NORMAL) + val = LP872X_AUTO_PWM << shift; + else + return -EINVAL; + + return lp872x_update_bits(lp, addr, mask, val); +} + +static unsigned int lp872x_buck_get_mode(struct regulator_dev *rdev) +{ + struct lp872x *lp = rdev_get_drvdata(rdev); + enum lp872x_regulator_id buck = rdev_get_id(rdev); + u8 addr, mask, val; + int ret; + + switch (buck) { + case LP8720_ID_BUCK: + addr = LP8720_BUCK_VOUT2; + mask = LP8720_BUCK_FPWM_M; + break; + case LP8725_ID_BUCK1: + addr = LP8725_BUCK_CTRL; + mask = LP8725_BUCK1_FPWM_M; + break; + case LP8725_ID_BUCK2: + addr = LP8725_BUCK_CTRL; + mask = LP8725_BUCK2_FPWM_M; + break; + default: + return -EINVAL; + } + + ret = lp872x_read_byte(lp, addr, &val); + if (ret) + return ret; + + return val & mask ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL; +} + +static struct regulator_ops lp872x_ldo_ops = { + .list_voltage = regulator_list_voltage_table, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .enable_time = lp872x_regulator_enable_time, +}; + +static struct regulator_ops lp8720_buck_ops = { + .list_voltage = regulator_list_voltage_table, + .set_voltage_sel = lp872x_buck_set_voltage_sel, + .get_voltage_sel = lp872x_buck_get_voltage_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .enable_time = lp872x_regulator_enable_time, + .set_mode = lp872x_buck_set_mode, + .get_mode = lp872x_buck_get_mode, +}; + +static struct regulator_ops lp8725_buck_ops = { + .list_voltage = regulator_list_voltage_table, + .set_voltage_sel = lp872x_buck_set_voltage_sel, + .get_voltage_sel = lp872x_buck_get_voltage_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .enable_time = lp872x_regulator_enable_time, + .set_mode = lp872x_buck_set_mode, + .get_mode = lp872x_buck_get_mode, + .set_current_limit = lp8725_buck_set_current_limit, + .get_current_limit = lp8725_buck_get_current_limit, +}; + +static struct regulator_desc lp8720_regulator_desc[] = { + { + .name = "ldo1", + .id = LP8720_ID_LDO1, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO1_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP872X_EN_LDO1_M, + }, + { + .name = "ldo2", + .id = LP8720_ID_LDO2, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO2_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP872X_EN_LDO2_M, + }, + { + .name = "ldo3", + .id = LP8720_ID_LDO3, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO3_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP872X_EN_LDO3_M, + }, + { + .name = "ldo4", + .id = LP8720_ID_LDO4, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp8720_ldo4_vtbl), + .volt_table = lp8720_ldo4_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO4_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP872X_EN_LDO4_M, + }, + { + .name = "ldo5", + .id = LP8720_ID_LDO5, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO5_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP872X_EN_LDO5_M, + }, + { + .name = "buck", + .id = LP8720_ID_BUCK, + .ops = &lp8720_buck_ops, + .n_voltages = ARRAY_SIZE(lp8720_buck_vtbl), + .volt_table = lp8720_buck_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .enable_reg = LP8720_ENABLE, + .enable_mask = LP8720_EN_BUCK_M, + }, +}; + +static struct regulator_desc lp8725_regulator_desc[] = { + { + .name = "ldo1", + .id = LP8725_ID_LDO1, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO1_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP872X_EN_LDO1_M, + }, + { + .name = "ldo2", + .id = LP8725_ID_LDO2, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO2_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP872X_EN_LDO2_M, + }, + { + .name = "ldo3", + .id = LP8725_ID_LDO3, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO3_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP872X_EN_LDO3_M, + }, + { + .name = "ldo4", + .id = LP8725_ID_LDO4, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO4_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP872X_EN_LDO4_M, + }, + { + .name = "ldo5", + .id = LP8725_ID_LDO5, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), + .volt_table = lp872x_ldo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP872X_LDO5_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP872X_EN_LDO5_M, + }, + { + .name = "lilo1", + .id = LP8725_ID_LILO1, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), + .volt_table = lp8725_lilo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP8725_LILO1_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP8725_EN_LILO1_M, + }, + { + .name = "lilo2", + .id = LP8725_ID_LILO2, + .ops = &lp872x_ldo_ops, + .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), + .volt_table = lp8725_lilo_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .vsel_reg = LP8725_LILO2_VOUT, + .vsel_mask = LP872X_VOUT_M, + .enable_reg = LP8725_LDO_CTRL, + .enable_mask = LP8725_EN_LILO2_M, + }, + { + .name = "buck1", + .id = LP8725_ID_BUCK1, + .ops = &lp8725_buck_ops, + .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), + .volt_table = lp8725_buck_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .enable_reg = LP872X_GENERAL_CFG, + .enable_mask = LP8725_BUCK1_EN_M, + }, + { + .name = "buck2", + .id = LP8725_ID_BUCK2, + .ops = &lp8725_buck_ops, + .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), + .volt_table = lp8725_buck_vtbl, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .enable_reg = LP872X_GENERAL_CFG, + .enable_mask = LP8725_BUCK2_EN_M, + }, +}; + +static int lp872x_check_dvs_validity(struct lp872x *lp) +{ + struct lp872x_dvs *dvs = lp->pdata->dvs; + u8 val = 0; + int ret; + + ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val); + if (ret) + return ret; + + ret = 0; + if (lp->chipid == LP8720) { + if (val & LP8720_EXT_DVS_M) + ret = dvs ? 0 : -EINVAL; + } else { + if ((val & LP8725_DVS1_M) == EXTERN_DVS_USED) + ret = dvs ? 0 : -EINVAL; + } + + return ret; +} + +static int lp872x_init_dvs(struct lp872x *lp) +{ + int ret, gpio; + struct lp872x_dvs *dvs = lp->pdata->dvs; + enum lp872x_dvs_state pinstate; + + ret = lp872x_check_dvs_validity(lp); + if (ret) { + dev_warn(lp->dev, "invalid dvs data: %d\n", ret); + return ret; + } + + gpio = dvs->gpio; + if (!gpio_is_valid(gpio)) { + dev_err(lp->dev, "invalid gpio: %d\n", gpio); + return -EINVAL; + } + + pinstate = dvs->init_state; + ret = devm_gpio_request_one(lp->dev, gpio, pinstate, "LP872X DVS"); + if (ret) { + dev_err(lp->dev, "gpio request err: %d\n", ret); + return ret; + } + + lp->dvs_pin = pinstate; + lp->dvs_gpio = gpio; + + return 0; +} + +static int lp872x_config(struct lp872x *lp) +{ + struct lp872x_platform_data *pdata = lp->pdata; + int ret; + + if (!pdata) { + dev_warn(lp->dev, "no platform data\n"); + return 0; + } + + if (!pdata->update_config) + return 0; + + ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config); + if (ret) + return ret; + + return lp872x_init_dvs(lp); +} + +static struct regulator_init_data +*lp872x_find_regulator_init_data(int idx, struct lp872x *lp) +{ + int i, base, id, max_regulators; + + switch (lp->chipid) { + case LP8720: + base = LP8720_ID_BASE; + max_regulators = LP8720_NUM_REGULATORS; + break; + case LP8725: + base = LP8725_ID_BASE; + max_regulators = LP8725_NUM_REGULATORS; + break; + default: + return NULL; + } + + id = base + idx; + for (i = 0 ; i < max_regulators ; i++) + if (lp->pdata->regulator_data[i].id == id) + break; + + return (i == max_regulators) ? NULL : + lp->pdata->regulator_data[i].init_data; +} + +static int lp872x_regulator_register(struct lp872x *lp) +{ + struct regulator_desc *desc; + struct regulator_config cfg = { }; + struct regulator_dev *rdev; + int i, ret; + + for (i = 0 ; i < lp->num_regulators ; i++) { + desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] : + &lp8725_regulator_desc[i]; + + cfg.dev = lp->dev; + cfg.init_data = lp872x_find_regulator_init_data(i, lp); + cfg.driver_data = lp; + cfg.regmap = lp->regmap; + + rdev = regulator_register(desc, &cfg); + if (IS_ERR(rdev)) { + dev_err(lp->dev, "regulator register err"); + ret = PTR_ERR(rdev); + goto err; + } + + *(lp->regulators + i) = rdev; + } + + return 0; +err: + while (--i >= 0) { + rdev = *(lp->regulators + i); + regulator_unregister(rdev); + } + return ret; +} + +static void lp872x_regulator_unregister(struct lp872x *lp) +{ + struct regulator_dev *rdev; + int i; + + for (i = 0 ; i < lp->num_regulators ; i++) { + rdev = *(lp->regulators + i); + regulator_unregister(rdev); + } +} + +static const struct regmap_config lp872x_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX_REGISTERS, +}; + +static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) +{ + struct lp872x *lp; + struct lp872x_platform_data *pdata = cl->dev.platform_data; + int ret, size, num_regulators; + const int lp872x_num_regulators[] = { + [LP8720] = LP8720_NUM_REGULATORS, + [LP8725] = LP8725_NUM_REGULATORS, + }; + + lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); + if (!lp) + goto err_mem; + + num_regulators = lp872x_num_regulators[id->driver_data]; + size = sizeof(struct regulator_dev *) * num_regulators; + + lp->regulators = devm_kzalloc(&cl->dev, size, GFP_KERNEL); + if (!lp->regulators) + goto err_mem; + + lp->regmap = devm_regmap_init_i2c(cl, &lp872x_regmap_config); + if (IS_ERR(lp->regmap)) { + ret = PTR_ERR(lp->regmap); + dev_err(&cl->dev, "regmap init i2c err: %d\n", ret); + goto err_dev; + } + + lp->dev = &cl->dev; + lp->pdata = pdata; + lp->chipid = id->driver_data; + lp->num_regulators = num_regulators; + i2c_set_clientdata(cl, lp); + + ret = lp872x_config(lp); + if (ret) + goto err_dev; + + return lp872x_regulator_register(lp); + +err_mem: + return -ENOMEM; +err_dev: + return ret; +} + +static int __devexit lp872x_remove(struct i2c_client *cl) +{ + struct lp872x *lp = i2c_get_clientdata(cl); + + lp872x_regulator_unregister(lp); + return 0; +} + +static const struct i2c_device_id lp872x_ids[] = { + {"lp8720", LP8720}, + {"lp8725", LP8725}, + { } +}; +MODULE_DEVICE_TABLE(i2c, lp872x_ids); + +static struct i2c_driver lp872x_driver = { + .driver = { + .name = "lp872x", + .owner = THIS_MODULE, + }, + .probe = lp872x_probe, + .remove = __devexit_p(lp872x_remove), + .id_table = lp872x_ids, +}; + +module_i2c_driver(lp872x_driver); + +MODULE_DESCRIPTION("TI/National Semiconductor LP872x PMU Regulator Driver"); +MODULE_AUTHOR("Milo Kim"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/regulator/lp872x.h b/include/linux/regulator/lp872x.h new file mode 100644 index 000000000000..132e05c46661 --- /dev/null +++ b/include/linux/regulator/lp872x.h @@ -0,0 +1,90 @@ +/* + * Copyright 2012 Texas Instruments + * + * Author: Milo(Woogyom) Kim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __LP872X_REGULATOR_H__ +#define __LP872X_REGULATOR_H__ + +#include +#include +#include + +#define LP872X_MAX_REGULATORS 9 + +enum lp872x_regulator_id { + LP8720_ID_BASE, + LP8720_ID_LDO1 = LP8720_ID_BASE, + LP8720_ID_LDO2, + LP8720_ID_LDO3, + LP8720_ID_LDO4, + LP8720_ID_LDO5, + LP8720_ID_BUCK, + + LP8725_ID_BASE, + LP8725_ID_LDO1 = LP8725_ID_BASE, + LP8725_ID_LDO2, + LP8725_ID_LDO3, + LP8725_ID_LDO4, + LP8725_ID_LDO5, + LP8725_ID_LILO1, + LP8725_ID_LILO2, + LP8725_ID_BUCK1, + LP8725_ID_BUCK2, + + LP872X_ID_MAX, +}; + +enum lp872x_dvs_state { + DVS_LOW = GPIOF_OUT_INIT_LOW, + DVS_HIGH = GPIOF_OUT_INIT_HIGH, +}; + +enum lp872x_dvs_sel { + SEL_V1, + SEL_V2, +}; + +/** + * lp872x_dvs + * @gpio : gpio pin number for dvs control + * @vsel : dvs selector for buck v1 or buck v2 register + * @init_state : initial dvs pin state + */ +struct lp872x_dvs { + int gpio; + enum lp872x_dvs_sel vsel; + enum lp872x_dvs_state init_state; +}; + +/** + * lp872x_regdata + * @id : regulator id + * @init_data : init data for each regulator + */ +struct lp872x_regulator_data { + enum lp872x_regulator_id id; + struct regulator_init_data *init_data; +}; + +/** + * lp872x_platform_data + * @general_config : the value of LP872X_GENERAL_CFG register + * @update_config : if LP872X_GENERAL_CFG register is updated, set true + * @regulator_data : platform regulator id and init data + * @dvs : dvs data for buck voltage control + */ +struct lp872x_platform_data { + u8 general_config; + bool update_config; + struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS]; + struct lp872x_dvs *dvs; +}; + +#endif -- cgit v1.2.3 From 809d310c7e69289c94a4475d287ba1c512885478 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 20 Jun 2012 11:08:43 +0100 Subject: regulator: lp872x: Don't allow modular build Fixes link failure due to devm_gpio_request_one() Reported-by: Stephen Rothwell Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 870f7300b156..434462ada7c0 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -20,6 +20,7 @@ menuconfig REGULATOR If unsure, say no. + if REGULATOR config REGULATOR_DEBUG @@ -225,7 +226,7 @@ config REGULATOR_LP3972 on National Semiconductors LP3972 PMIC config REGULATOR_LP872X - tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators" + bool "TI/National Semiconductor LP8720/LP8725 voltage regulators" depends on I2C select REGMAP_I2C help -- cgit v1.2.3 From c59d2a6b20aef4660a9ed89224bd17eec6a54751 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 15:01:25 +0800 Subject: regulator: max77686: Initialize regulator_config Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index a29eee33dd7b..877d4bff1120 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -217,7 +217,7 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) struct max77686_data *max77686; int i, size; int ret = 0; - struct regulator_config config; + struct regulator_config config = { }; dev_dbg(&pdev->dev, "%s\n", __func__); -- cgit v1.2.3 From f503071b03dcac6908fb7e051cfc9c45bea084c0 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Wed, 20 Jun 2012 10:50:51 +0530 Subject: regulator: max77686: Implement .set_ramp_delay() callback This patch implements the .set_ramp_delay callback to set the ramp_delay on hardware for BUCK2/3/4 if ramp_delay is set in regulator constraints. This patch also do some cleaning work for unrequired members of struct max77686_data. Signed-off-by: Yadwinder Singh Brar Acked-by: MyungJoo Ham Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 37 +++++++++++++++++++++++++++++-------- 1 file changed, 29 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 877d4bff1120..23f956a6c5f2 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -65,11 +65,34 @@ enum max77686_ramp_rate { }; struct max77686_data { - struct device *dev; - struct max77686_dev *iodev; struct regulator_dev **rdev; }; +static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) +{ + unsigned int ramp_value = RAMP_RATE_NO_CTRL; + + switch (ramp_delay) { + case 1 ... 13750: + ramp_value = RAMP_RATE_13P75MV; + break; + case 13751 ... 27500: + ramp_value = RAMP_RATE_27P5MV; + break; + case 27501 ... 55000: + ramp_value = RAMP_RATE_55MV; + break; + case 55001 ... 100000: + break; + default: + pr_warn("%s: ramp_delay: %d not supported, setting 100000\n", + rdev->desc->name, ramp_delay); + } + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77686_RAMP_RATE_MASK, ramp_value << 6); +} + static struct regulator_ops max77686_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, @@ -90,6 +113,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77686_set_ramp_delay, }; #define regulator_desc_ldo(num) { \ @@ -238,20 +262,17 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) return -ENOMEM; rdev = max77686->rdev; - max77686->dev = &pdev->dev; - max77686->iodev = iodev; + config.dev = &pdev->dev; + config.regmap = iodev->regmap; platform_set_drvdata(pdev, max77686); for (i = 0; i < MAX77686_REGULATORS; i++) { - config.dev = max77686->dev; - config.regmap = iodev->regmap; - config.driver_data = max77686; config.init_data = pdata->regulators[i].initdata; rdev[i] = regulator_register(®ulators[i], &config); if (IS_ERR(rdev[i])) { ret = PTR_ERR(rdev[i]); - dev_err(max77686->dev, + dev_err(&pdev->dev, "regulator init failed for %d\n", i); rdev[i] = NULL; goto err; -- cgit v1.2.3 From baf73e2c4e25aa57a7bd5df90a93e65be0542c74 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 16:13:15 +0800 Subject: regulator: lp872x: Return -EINVAL if pdata is NULL Return -EINVAL if pdata is NULL, otherwise we have NULL dereference bug. This patch also moves the code checking pdata earlier in lp872x_probe. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/lp872x.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index d51d09852041..e8f54efb1985 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -785,11 +785,6 @@ static int lp872x_config(struct lp872x *lp) struct lp872x_platform_data *pdata = lp->pdata; int ret; - if (!pdata) { - dev_warn(lp->dev, "no platform data\n"); - return 0; - } - if (!pdata->update_config) return 0; @@ -889,6 +884,11 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) [LP8725] = LP8725_NUM_REGULATORS, }; + if (!pdata) { + dev_warn(&cl->dev, "no platform data\n"); + return -EINVAL; + } + lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); if (!lp) goto err_mem; -- cgit v1.2.3 From b667a45d9f8ed98d4da2bbbd1c9083aade0f3237 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 14 Jun 2012 18:14:00 +0100 Subject: regulator: arizona: Add support for microphone supplies on Arizona devices The Wolfson Arizona platform is used for a range of low power audio hub CODECs. Many of these devices feature an integrated power supply for the microphone which is supported by this driver. Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 7 ++ drivers/regulator/Makefile | 1 + drivers/regulator/arizona-micsupp.c | 184 ++++++++++++++++++++++++++++++++++++ 3 files changed, 192 insertions(+) create mode 100644 drivers/regulator/arizona-micsupp.c (limited to 'drivers') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 434462ada7c0..e056c09661a2 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -89,6 +89,13 @@ config REGULATOR_AAT2870 If you have a AnalogicTech AAT2870 say Y to enable the regulator driver. +config REGULATOR_ARIZONA + tristate "Wolfson Arizona class devices" + depends on MFD_ARIZONA + help + Support for the regulators found on Wolfson Arizona class + devices. + config REGULATOR_DA903X tristate "Dialog Semiconductor DA9030/DA9034 regulators" depends on PMIC_DA903X diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index e6f700748a3b..ec4a0cfb3ca7 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o +obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o obj-$(CONFIG_REGULATOR_DA903X) += da903x.o obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c new file mode 100644 index 000000000000..97d85b09a940 --- /dev/null +++ b/drivers/regulator/arizona-micsupp.c @@ -0,0 +1,184 @@ +/* + * arizona-micsupp.c -- Microphone supply for Arizona devices + * + * Copyright 2012 Wolfson Microelectronics PLC. + * + * Author: Mark Brown + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define ARIZONA_MICSUPP_MAX_SELECTOR 0x1f + +struct arizona_micsupp { + struct regulator_dev *regulator; + struct arizona *arizona; + + struct regulator_consumer_supply supply; + struct regulator_init_data init_data; +}; + +static int arizona_micsupp_list_voltage(struct regulator_dev *rdev, + unsigned int selector) +{ + if (selector > ARIZONA_MICSUPP_MAX_SELECTOR) + return -EINVAL; + + if (selector == ARIZONA_MICSUPP_MAX_SELECTOR) + return 3300000; + else + return (selector * 50000) + 1700000; +} + +static int arizona_micsupp_map_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + unsigned int voltage; + int selector; + + if (min_uV < 1700000) + min_uV = 1700000; + + if (min_uV >= 3300000) + selector = ARIZONA_MICSUPP_MAX_SELECTOR; + else + selector = DIV_ROUND_UP(min_uV - 1700000, 50000); + + if (selector < 0) + return -EINVAL; + + voltage = arizona_micsupp_list_voltage(rdev, selector); + if (voltage < min_uV || voltage > max_uV) + return -EINVAL; + + return selector; +} + +static struct regulator_ops arizona_micsupp_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + + .list_voltage = arizona_micsupp_list_voltage, + .map_voltage = arizona_micsupp_map_voltage, + + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static const struct regulator_desc arizona_micsupp = { + .name = "MICVDD", + .supply_name = "CPVDD", + .type = REGULATOR_VOLTAGE, + .n_voltages = ARIZONA_MICSUPP_MAX_SELECTOR + 1, + .ops = &arizona_micsupp_ops, + + .vsel_reg = ARIZONA_LDO2_CONTROL_1, + .vsel_mask = ARIZONA_LDO2_VSEL_MASK, + .enable_reg = ARIZONA_MIC_CHARGE_PUMP_1, + .enable_mask = ARIZONA_CPMIC_ENA, + + .owner = THIS_MODULE, +}; + +static const struct regulator_init_data arizona_micsupp_default = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_VOLTAGE, + .min_uV = 1700000, + .max_uV = 3300000, + }, + + .num_consumer_supplies = 1, +}; + +static __devinit int arizona_micsupp_probe(struct platform_device *pdev) +{ + struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = { }; + struct arizona_micsupp *micsupp; + int ret; + + micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL); + if (micsupp == NULL) { + dev_err(&pdev->dev, "Unable to allocate private data\n"); + return -ENOMEM; + } + + micsupp->arizona = arizona; + + /* + * Since the chip usually supplies itself we provide some + * default init_data for it. This will be overridden with + * platform data if provided. + */ + micsupp->init_data = arizona_micsupp_default; + micsupp->init_data.consumer_supplies = &micsupp->supply; + micsupp->supply.supply = "MICVDD"; + micsupp->supply.dev_name = dev_name(arizona->dev); + + config.dev = arizona->dev; + config.driver_data = micsupp; + config.regmap = arizona->regmap; + + if (arizona->pdata.micvdd) + config.init_data = arizona->pdata.micvdd; + else + config.init_data = &micsupp->init_data; + + micsupp->regulator = regulator_register(&arizona_micsupp, &config); + if (IS_ERR(micsupp->regulator)) { + ret = PTR_ERR(micsupp->regulator); + dev_err(arizona->dev, "Failed to register mic supply: %d\n", + ret); + return ret; + } + + platform_set_drvdata(pdev, micsupp); + + return 0; +} + +static __devexit int arizona_micsupp_remove(struct platform_device *pdev) +{ + struct arizona_micsupp *micsupp = platform_get_drvdata(pdev); + + regulator_unregister(micsupp->regulator); + + return 0; +} + +static struct platform_driver arizona_micsupp_driver = { + .probe = arizona_micsupp_probe, + .remove = __devexit_p(arizona_micsupp_remove), + .driver = { + .name = "arizona-micsupp", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(arizona_micsupp_driver); + +/* Module information */ +MODULE_AUTHOR("Mark Brown "); +MODULE_DESCRIPTION("Arizona microphone supply driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:arizona-micsupp"); -- cgit v1.2.3 From 01bc3a1400373a0f6bd79f2328eb822ca099c784 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 22:40:10 +0800 Subject: regulator: tps65910: Convert to regulator_set_voltage_time_sel() Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 34 ++++++---------------------------- 1 file changed, 6 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index e1b01ec82301..373c529b379d 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -824,31 +824,6 @@ static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) return (LDO_MIN_VOLT + selector * step_mv) * 1000; } -static int tps65910_set_voltage_dcdc_time_sel(struct regulator_dev *dev, - unsigned int old_selector, unsigned int new_selector) -{ - int id = rdev_get_id(dev); - int old_volt, new_volt; - - old_volt = tps65910_list_voltage_dcdc(dev, old_selector); - if (old_volt < 0) - return old_volt; - - new_volt = tps65910_list_voltage_dcdc(dev, new_selector); - if (new_volt < 0) - return new_volt; - - /* VDD1 and VDD2 are 12.5mV/us, VDDCTRL is 100mV/20us */ - switch (id) { - case TPS65910_REG_VDD1: - case TPS65910_REG_VDD2: - return DIV_ROUND_UP(abs(old_volt - new_volt), 12500); - case TPS65911_REG_VDDCTRL: - return DIV_ROUND_UP(abs(old_volt - new_volt), 5000); - } - return -EINVAL; -} - /* Regulator ops (except VRTC) */ static struct regulator_ops tps65910_ops_dcdc = { .is_enabled = regulator_is_enabled_regmap, @@ -859,7 +834,7 @@ static struct regulator_ops tps65910_ops_dcdc = { .get_mode = tps65910_get_mode, .get_voltage_sel = tps65910_get_voltage_dcdc_sel, .set_voltage_sel = tps65910_set_voltage_dcdc_sel, - .set_voltage_time_sel = tps65910_set_voltage_dcdc_time_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, .list_voltage = tps65910_list_voltage_dcdc, }; @@ -1236,11 +1211,14 @@ static __devinit int tps65910_probe(struct platform_device *pdev) pmic->desc[i].ops = &tps65910_ops_dcdc; pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE * VDD1_2_NUM_VOLT_COARSE; + pmic->desc[i].ramp_delay = 12500; } else if (i == TPS65910_REG_VDD3) { - if (tps65910_chip_id(tps65910) == TPS65910) + if (tps65910_chip_id(tps65910) == TPS65910) { pmic->desc[i].ops = &tps65910_ops_vdd3; - else + } else { pmic->desc[i].ops = &tps65910_ops_dcdc; + pmic->desc[i].ramp_delay = 5000; + } } else { if (tps65910_chip_id(tps65910) == TPS65910) pmic->desc[i].ops = &tps65910_ops; -- cgit v1.2.3 From dc2060cfe2aa2b62ba2f4a19fce0c20eceefe7ca Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 21 Jun 2012 10:35:58 +0100 Subject: regulator: lp872x: Depend on I2C=y Kconfig doesn't do the right thing for us here. Reported-by: Stephen Rothwell Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index e056c09661a2..27fe52f592d9 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -234,7 +234,7 @@ config REGULATOR_LP3972 config REGULATOR_LP872X bool "TI/National Semiconductor LP8720/LP8725 voltage regulators" - depends on I2C + depends on I2C=y select REGMAP_I2C help This driver supports LP8720/LP8725 PMIC -- cgit v1.2.3 From b222a817b45c27f3411dbe9eb6b4041076351bc2 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 21 Jun 2012 08:03:56 +0000 Subject: regulator: change message level on probing lp872x driver Use err log rather than warning message when the platform data is NULL Signed-off-by: Milo(Woogyom) Kim Signed-off-by: Mark Brown --- drivers/regulator/lp872x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index e8f54efb1985..471f8e82be41 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -885,7 +885,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) }; if (!pdata) { - dev_warn(&cl->dev, "no platform data\n"); + dev_err(&cl->dev, "no platform data\n"); return -EINVAL; } -- cgit v1.2.3 From ce7d16a1752accbff1ff7c813594aad0b7168563 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 21 Jun 2012 10:05:56 -0300 Subject: [media] smiapp-core: fix compilation build error smiapp-core.c:2472:3: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/smiapp/smiapp-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/media/video/smiapp/smiapp-core.c b/drivers/media/video/smiapp/smiapp-core.c index e8c93c89265a..9cf5bda35fbe 100644 --- a/drivers/media/video/smiapp/smiapp-core.c +++ b/drivers/media/video/smiapp/smiapp-core.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From b6a509df59c6abd0a2177e3be29642207711145d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Jun 2012 21:30:30 -0300 Subject: [media] media: pms.c needs linux/slab.h drivers/media/video/pms.c uses kzalloc() and kfree() so it should include to fix build errors and a warning. drivers/media/video/pms.c:1047:2: error: implicit declaration of function 'kzalloc' drivers/media/video/pms.c:1047:6: warning: assignment makes pointer from integer without a cast drivers/media/video/pms.c:1116:2: error: implicit declaration of function 'kfree' Found in mmotm but applies to mainline. Signed-off-by: Randy Dunlap Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pms.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index 77f9c92186f4..b4c679b3fb0f 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From f6442aa0b503f944907b869659dd27756c809488 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 21 Jun 2012 18:45:46 +0800 Subject: regulator: tps65910: Remove unused min_uV and max_uV from struct tps_info The min_uV and max_uV fields of struct tps_info are not used in the code. For the case voltage_table is provided, the min_uV and max_uV are the same values as volt_table[0] and volt_table[n_voltages -1]. For the case voltage_table is not available, having the min_uV and max_uV seems misleading. Current code uses equations to get the voltage value in this case, but these equations do not use the min_uV and max_uV fields of struct tps_info. Thus this patch removes the min_uV and max_uV fields from struct tps_info. Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 50 ---------------------------------- 1 file changed, 50 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index 373c529b379d..edeaa2c770b9 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -85,8 +85,6 @@ static const u16 VMMC_VSEL_table[] = { struct tps_info { const char *name; - unsigned min_uV; - unsigned max_uV; u8 n_voltages; const u16 *voltage_table; int enable_time_us; @@ -99,92 +97,68 @@ static struct tps_info tps65910_regs[] = { }, { .name = "vio", - .min_uV = 1500000, - .max_uV = 3300000, .n_voltages = ARRAY_SIZE(VIO_VSEL_table), .voltage_table = VIO_VSEL_table, .enable_time_us = 350, }, { .name = "vdd1", - .min_uV = 600000, - .max_uV = 4500000, .enable_time_us = 350, }, { .name = "vdd2", - .min_uV = 600000, - .max_uV = 4500000, .enable_time_us = 350, }, { .name = "vdd3", - .min_uV = 5000000, - .max_uV = 5000000, .n_voltages = ARRAY_SIZE(VDD3_VSEL_table), .voltage_table = VDD3_VSEL_table, .enable_time_us = 200, }, { .name = "vdig1", - .min_uV = 1200000, - .max_uV = 2700000, .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table), .voltage_table = VDIG1_VSEL_table, .enable_time_us = 100, }, { .name = "vdig2", - .min_uV = 1000000, - .max_uV = 1800000, .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table), .voltage_table = VDIG2_VSEL_table, .enable_time_us = 100, }, { .name = "vpll", - .min_uV = 1000000, - .max_uV = 2500000, .n_voltages = ARRAY_SIZE(VPLL_VSEL_table), .voltage_table = VPLL_VSEL_table, .enable_time_us = 100, }, { .name = "vdac", - .min_uV = 1800000, - .max_uV = 2850000, .n_voltages = ARRAY_SIZE(VDAC_VSEL_table), .voltage_table = VDAC_VSEL_table, .enable_time_us = 100, }, { .name = "vaux1", - .min_uV = 1800000, - .max_uV = 2850000, .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table), .voltage_table = VAUX1_VSEL_table, .enable_time_us = 100, }, { .name = "vaux2", - .min_uV = 1800000, - .max_uV = 3300000, .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table), .voltage_table = VAUX2_VSEL_table, .enable_time_us = 100, }, { .name = "vaux33", - .min_uV = 1800000, - .max_uV = 3300000, .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table), .voltage_table = VAUX33_VSEL_table, .enable_time_us = 100, }, { .name = "vmmc", - .min_uV = 1800000, - .max_uV = 3300000, .n_voltages = ARRAY_SIZE(VMMC_VSEL_table), .voltage_table = VMMC_VSEL_table, .enable_time_us = 100, @@ -198,86 +172,62 @@ static struct tps_info tps65911_regs[] = { }, { .name = "vio", - .min_uV = 1500000, - .max_uV = 3300000, .n_voltages = ARRAY_SIZE(VIO_VSEL_table), .voltage_table = VIO_VSEL_table, .enable_time_us = 350, }, { .name = "vdd1", - .min_uV = 600000, - .max_uV = 4500000, .n_voltages = 73, .enable_time_us = 350, }, { .name = "vdd2", - .min_uV = 600000, - .max_uV = 4500000, .n_voltages = 73, .enable_time_us = 350, }, { .name = "vddctrl", - .min_uV = 600000, - .max_uV = 1400000, .n_voltages = 65, .enable_time_us = 900, }, { .name = "ldo1", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 47, .enable_time_us = 420, }, { .name = "ldo2", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 47, .enable_time_us = 420, }, { .name = "ldo3", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo4", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 47, .enable_time_us = 230, }, { .name = "ldo5", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo6", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo7", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo8", - .min_uV = 1000000, - .max_uV = 3300000, .n_voltages = 24, .enable_time_us = 230, }, -- cgit v1.2.3 From d9fe28f9621be70514aeacd2b4b3640e986d4cb1 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 21 Jun 2012 18:48:00 +0800 Subject: regulator: tps65910: Convert to regulator_list_voltage_table Convert tps65910_ops and tps65910_ops_vdd3 to regulator_list_voltage_table. Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 94 +++++++++++++++------------------- 1 file changed, 40 insertions(+), 54 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index edeaa2c770b9..66da87cc0879 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -31,62 +31,62 @@ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \ TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) -/* supported VIO voltages in millivolts */ -static const u16 VIO_VSEL_table[] = { - 1500, 1800, 2500, 3300, +/* supported VIO voltages in microvolts */ +static const unsigned int VIO_VSEL_table[] = { + 1500000, 1800000, 2500000, 3300000, }; /* VSEL tables for TPS65910 specific LDOs and dcdc's */ -/* supported VDD3 voltages in millivolts */ -static const u16 VDD3_VSEL_table[] = { - 5000, +/* supported VDD3 voltages in microvolts */ +static const unsigned int VDD3_VSEL_table[] = { + 5000000, }; -/* supported VDIG1 voltages in millivolts */ -static const u16 VDIG1_VSEL_table[] = { - 1200, 1500, 1800, 2700, +/* supported VDIG1 voltages in microvolts */ +static const unsigned int VDIG1_VSEL_table[] = { + 1200000, 1500000, 1800000, 2700000, }; -/* supported VDIG2 voltages in millivolts */ -static const u16 VDIG2_VSEL_table[] = { - 1000, 1100, 1200, 1800, +/* supported VDIG2 voltages in microvolts */ +static const unsigned int VDIG2_VSEL_table[] = { + 1000000, 1100000, 1200000, 1800000, }; -/* supported VPLL voltages in millivolts */ -static const u16 VPLL_VSEL_table[] = { - 1000, 1100, 1800, 2500, +/* supported VPLL voltages in microvolts */ +static const unsigned int VPLL_VSEL_table[] = { + 1000000, 1100000, 1800000, 2500000, }; -/* supported VDAC voltages in millivolts */ -static const u16 VDAC_VSEL_table[] = { - 1800, 2600, 2800, 2850, +/* supported VDAC voltages in microvolts */ +static const unsigned int VDAC_VSEL_table[] = { + 1800000, 2600000, 2800000, 2850000, }; -/* supported VAUX1 voltages in millivolts */ -static const u16 VAUX1_VSEL_table[] = { - 1800, 2500, 2800, 2850, +/* supported VAUX1 voltages in microvolts */ +static const unsigned int VAUX1_VSEL_table[] = { + 1800000, 2500000, 2800000, 2850000, }; -/* supported VAUX2 voltages in millivolts */ -static const u16 VAUX2_VSEL_table[] = { - 1800, 2800, 2900, 3300, +/* supported VAUX2 voltages in microvolts */ +static const unsigned int VAUX2_VSEL_table[] = { + 1800000, 2800000, 2900000, 3300000, }; -/* supported VAUX33 voltages in millivolts */ -static const u16 VAUX33_VSEL_table[] = { - 1800, 2000, 2800, 3300, +/* supported VAUX33 voltages in microvolts */ +static const unsigned int VAUX33_VSEL_table[] = { + 1800000, 2000000, 2800000, 3300000, }; -/* supported VMMC voltages in millivolts */ -static const u16 VMMC_VSEL_table[] = { - 1800, 2800, 3000, 3300, +/* supported VMMC voltages in microvolts */ +static const unsigned int VMMC_VSEL_table[] = { + 1800000, 2800000, 3000000, 3300000, }; struct tps_info { const char *name; u8 n_voltages; - const u16 *voltage_table; + const unsigned int *voltage_table; int enable_time_us; }; @@ -559,7 +559,7 @@ static int tps65910_get_voltage_sel(struct regulator_dev *dev) static int tps65910_get_voltage_vdd3(struct regulator_dev *dev) { - return 5 * 1000 * 1000; + return dev->desc->volt_table[0]; } static int tps65911_get_voltage_sel(struct regulator_dev *dev) @@ -718,23 +718,6 @@ static int tps65910_list_voltage_dcdc(struct regulator_dev *dev, return volt * 100 * mult; } -static int tps65910_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct tps65910_reg *pmic = rdev_get_drvdata(dev); - int id = rdev_get_id(dev), voltage; - - if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC) - return -EINVAL; - - if (selector >= pmic->info[id]->n_voltages) - return -EINVAL; - else - voltage = pmic->info[id]->voltage_table[selector] * 1000; - - return voltage; -} - static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) { struct tps65910_reg *pmic = rdev_get_drvdata(dev); @@ -766,7 +749,7 @@ static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) step_mv = 100; break; case TPS65910_REG_VIO: - return pmic->info[id]->voltage_table[selector] * 1000; + return pmic->info[id]->voltage_table[selector]; default: return -EINVAL; } @@ -796,7 +779,7 @@ static struct regulator_ops tps65910_ops_vdd3 = { .set_mode = tps65910_set_mode, .get_mode = tps65910_get_mode, .get_voltage = tps65910_get_voltage_vdd3, - .list_voltage = tps65910_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static struct regulator_ops tps65910_ops = { @@ -808,7 +791,7 @@ static struct regulator_ops tps65910_ops = { .get_mode = tps65910_get_mode, .get_voltage_sel = tps65910_get_voltage_sel, .set_voltage_sel = tps65910_set_voltage_sel, - .list_voltage = tps65910_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static struct regulator_ops tps65911_ops = { @@ -1165,15 +1148,18 @@ static __devinit int tps65910_probe(struct platform_device *pdev) } else if (i == TPS65910_REG_VDD3) { if (tps65910_chip_id(tps65910) == TPS65910) { pmic->desc[i].ops = &tps65910_ops_vdd3; + pmic->desc[i].volt_table = info->voltage_table; } else { pmic->desc[i].ops = &tps65910_ops_dcdc; pmic->desc[i].ramp_delay = 5000; } } else { - if (tps65910_chip_id(tps65910) == TPS65910) + if (tps65910_chip_id(tps65910) == TPS65910) { pmic->desc[i].ops = &tps65910_ops; - else + pmic->desc[i].volt_table = info->voltage_table; + } else { pmic->desc[i].ops = &tps65911_ops; + } } err = tps65910_set_ext_sleep_config(pmic, i, -- cgit v1.2.3 From 925839243dc9aa4ef25305f5afd10ed18258a4ac Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Wed, 20 Jun 2012 20:21:10 -0700 Subject: mwifiex: fix 11n rx packet drop issue Currently we check the sequence number of last packet received against start_win. If a sequence hole is detected, start_win is updated to next sequence number. Since the rx sequence number is initialized to 0, a corner case exists when BA setup happens immediately after association. As 0 is a valid sequence number, start_win gets increased to 1 incorrectly. This causes the first packet with sequence number 0 being dropped. Initialize rx sequence number as 0xffff and skip adjusting start_win if the sequence number remains 0xffff. The sequence number will be updated once the first packet is received. Cc: "3.0.y, 3.1.y, 3.2.y, 3.3.y, 3.4.y" Signed-off-by: Stone Piao Signed-off-by: Avinash Patil Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/11n_rxreorder.c | 5 +++-- drivers/net/wireless/mwifiex/11n_rxreorder.h | 7 +++++++ drivers/net/wireless/mwifiex/wmm.c | 2 ++ 3 files changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.c b/drivers/net/wireless/mwifiex/11n_rxreorder.c index 9c44088054dd..900ee129e825 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.c +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.c @@ -256,7 +256,8 @@ mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta, else last_seq = priv->rx_seq[tid]; - if (last_seq >= new_node->start_win) + if (last_seq != MWIFIEX_DEF_11N_RX_SEQ_NUM && + last_seq >= new_node->start_win) new_node->start_win = last_seq + 1; new_node->win_size = win_size; @@ -596,5 +597,5 @@ void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv) spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); - memset(priv->rx_seq, 0, sizeof(priv->rx_seq)); + mwifiex_reset_11n_rx_seq_num(priv); } diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h index f1bffebabc60..6c9815a0f5d8 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.h +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h @@ -37,6 +37,13 @@ #define ADDBA_RSP_STATUS_ACCEPT 0 +#define MWIFIEX_DEF_11N_RX_SEQ_NUM 0xffff + +static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv) +{ + memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq)); +} + int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *, u16 seqNum, u16 tid, u8 *ta, diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index f3fc65515857..8c2b5c0aa754 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -404,6 +404,8 @@ mwifiex_wmm_init(struct mwifiex_adapter *adapter) priv->add_ba_param.tx_win_size = MWIFIEX_AMPDU_DEF_TXWINSIZE; priv->add_ba_param.rx_win_size = MWIFIEX_AMPDU_DEF_RXWINSIZE; + mwifiex_reset_11n_rx_seq_num(priv); + atomic_set(&priv->wmm.tx_pkts_queued, 0); atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); } -- cgit v1.2.3 From f03ba7e9a24e5e9efaad56bd1713b994ea556b16 Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Wed, 20 Jun 2012 20:21:11 -0700 Subject: mwifiex: fix WPS eapol handshake failure After association, STA will go through eapol handshake with WPS enabled AP. It's observed that WPS handshake fails with some 11n AP. The reason for the failure is that the eapol packet is sent via 11n frame aggregation. The eapol packet should be sent directly without 11n aggregation. This patch fixes the problem by adding WPS session control while dequeuing Tx packets for transmission. Cc: "3.4.y" Signed-off-by: Stone Piao Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/wmm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 8c2b5c0aa754..3fa4d4176993 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -1223,6 +1223,7 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) if (!ptr->is_11n_enabled || mwifiex_is_ba_stream_setup(priv, ptr, tid) || + priv->wps.session_enable || ((priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) && !priv->wpa_is_gtk_set)) { -- cgit v1.2.3 From e80c81dc1416e326482c601af3a19d0f9989638e Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 20 Jun 2012 20:21:12 -0700 Subject: mwifiex: fix bugs in event handling code This patch ensures uniformity in event skb sent by interface code (USB/PCIe/SDIO) which automatically fixes following bugs. 1) For USB interface, same buffer is reused for receiving cmd and events from firmware. While handling events, we perform skb_pull(skb, 4) to remove event header. Corresponding skb_push() call is missing while submitting the buffer. 2) For PCIe interface, event skb is passed with event header. Recently added uAP events EVENT_UAP_STA_ASSOC, EVENT_UAP_STA_DEAUTH will not work for PCIe, as they assume event skb points to event body. Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/sdio.c | 6 +++--- drivers/net/wireless/mwifiex/sta_event.c | 9 ++++----- drivers/net/wireless/mwifiex/usb.c | 6 +++--- 3 files changed, 10 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index e0377473282f..fc8a9bfa1248 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -978,10 +978,10 @@ static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, dev_dbg(adapter->dev, "info: --- Rx: Event ---\n"); adapter->event_cause = *(u32 *) skb->data; - skb_pull(skb, MWIFIEX_EVENT_HEADER_LEN); - if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) - memcpy(adapter->event_body, skb->data, skb->len); + memcpy(adapter->event_body, + skb->data + MWIFIEX_EVENT_HEADER_LEN, + skb->len); /* event cause has been saved to adapter->event_cause */ adapter->event_received = true; diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c index 4ace5a3dcd23..11e731f3581c 100644 --- a/drivers/net/wireless/mwifiex/sta_event.c +++ b/drivers/net/wireless/mwifiex/sta_event.c @@ -406,9 +406,9 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv) break; case EVENT_UAP_STA_ASSOC: - skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER); memset(&sinfo, 0, sizeof(sinfo)); - event = (struct mwifiex_assoc_event *)adapter->event_skb->data; + event = (struct mwifiex_assoc_event *) + (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { len = -1; @@ -433,9 +433,8 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv) GFP_KERNEL); break; case EVENT_UAP_STA_DEAUTH: - skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER); - cfg80211_del_sta(priv->netdev, adapter->event_skb->data, - GFP_KERNEL); + cfg80211_del_sta(priv->netdev, adapter->event_body + + MWIFIEX_UAP_EVENT_EXTRA_HEADER, GFP_KERNEL); break; case EVENT_UAP_BSS_IDLE: priv->media_connected = false; diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index 49ebf20c56eb..e6d796fabab5 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -91,7 +91,6 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, } skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); adapter->event_cause = le32_to_cpu(tmp); - skb_pull(skb, sizeof(u32)); dev_dbg(dev, "event_cause %#x\n", adapter->event_cause); if (skb->len > MAX_EVENT_SIZE) { @@ -99,8 +98,9 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, return -1; } - skb_copy_from_linear_data(skb, adapter->event_body, - skb->len); + memcpy(adapter->event_body, skb->data + + MWIFIEX_EVENT_HEADER_LEN, skb->len); + adapter->event_received = true; adapter->event_skb = skb; break; -- cgit v1.2.3 From 8311f0da95d483ceb76bafae6e0a8c90531fb577 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 20 Jun 2012 20:21:13 -0700 Subject: mwifiex: improve error path handling in usb.c skb allocated during initialisation is reused for receiving commands/events by USB interface. We miss to reset skb->data in failure cases. This patch takes care of it. Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/usb.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index e6d796fabab5..22a5916564b8 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -49,6 +49,7 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, struct device *dev = adapter->dev; u32 recv_type; __le32 tmp; + int ret; if (adapter->hs_activated) mwifiex_process_hs_config(adapter); @@ -69,16 +70,19 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, case MWIFIEX_USB_TYPE_CMD: if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) { dev_err(dev, "CMD: skb->len too large\n"); - return -1; + ret = -1; + goto exit_restore_skb; } else if (!adapter->curr_cmd) { dev_dbg(dev, "CMD: no curr_cmd\n"); if (adapter->ps_state == PS_STATE_SLEEP_CFM) { mwifiex_process_sleep_confirm_resp( adapter, skb->data, skb->len); - return 0; + ret = 0; + goto exit_restore_skb; } - return -1; + ret = -1; + goto exit_restore_skb; } adapter->curr_cmd->resp_skb = skb; @@ -87,7 +91,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, case MWIFIEX_USB_TYPE_EVENT: if (skb->len < sizeof(u32)) { dev_err(dev, "EVENT: skb->len too small\n"); - return -1; + ret = -1; + goto exit_restore_skb; } skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); adapter->event_cause = le32_to_cpu(tmp); @@ -95,7 +100,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, if (skb->len > MAX_EVENT_SIZE) { dev_err(dev, "EVENT: event body too large\n"); - return -1; + ret = -1; + goto exit_restore_skb; } memcpy(adapter->event_body, skb->data + @@ -124,6 +130,12 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, } return -EINPROGRESS; + +exit_restore_skb: + /* The buffer will be reused for further cmds/events */ + skb_push(skb, INTF_HEADER_LEN); + + return ret; } static void mwifiex_usb_rx_complete(struct urb *urb) -- cgit v1.2.3 From b19dbf711e8dae026f8d014eae90d766d02f4acb Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 23 Jun 2012 11:34:20 +0100 Subject: regulator: core: Add export of regulator_set_voltage_time_sel() Signed-off-by: Mark Brown --- drivers/regulator/core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index ce0a3462e0de..26b71048709b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2330,6 +2330,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, return 0; } +EXPORT_SYMBOL_GPL(regulator_set_voltage_time_sel); /** * regulator_sync_voltage - re-apply last regulator output voltage -- cgit v1.2.3 From b5152415225ba0d489939778f3b85217b25036db Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 14 Jun 2012 09:38:26 +0800 Subject: regulator: tps62360: Remove chip_id and voltage_base from struct tps62360_chip The chip_id is not used. The voltage_base is not necessary, set base voltage to tps->desc.min_uV instead. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps62360-regulator.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c index d044a58640e7..bcea4e1eea1e 100644 --- a/drivers/regulator/tps62360-regulator.c +++ b/drivers/regulator/tps62360-regulator.c @@ -65,10 +65,8 @@ struct tps62360_chip { struct regulator_desc desc; struct regulator_dev *rdev; struct regmap *regmap; - int chip_id; int vsel0_gpio; int vsel1_gpio; - int voltage_base; u8 voltage_reg_mask; bool en_internal_pulldn; bool en_discharge; @@ -401,13 +399,13 @@ static int __devinit tps62360_probe(struct i2c_client *client, switch (chip_id) { case TPS62360: case TPS62362: - tps->voltage_base = TPS62360_BASE_VOLTAGE; + tps->desc.min_uV = TPS62360_BASE_VOLTAGE; tps->voltage_reg_mask = 0x3F; tps->desc.n_voltages = TPS62360_N_VOLTAGES; break; case TPS62361: case TPS62363: - tps->voltage_base = TPS62361_BASE_VOLTAGE; + tps->desc.min_uV = TPS62361_BASE_VOLTAGE; tps->voltage_reg_mask = 0x7F; tps->desc.n_voltages = TPS62361_N_VOLTAGES; break; @@ -420,7 +418,6 @@ static int __devinit tps62360_probe(struct i2c_client *client, tps->desc.ops = &tps62360_dcdc_ops; tps->desc.type = REGULATOR_VOLTAGE; tps->desc.owner = THIS_MODULE; - tps->desc.min_uV = tps->voltage_base; tps->desc.uV_step = 10000; tps->regmap = devm_regmap_init_i2c(client, &tps62360_regmap_config); -- cgit v1.2.3 From 9a0fbb627cfa86303b8eb57377f536c64812cc85 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 17 Jun 2012 09:33:07 +0800 Subject: regulator: max8998: Convert to regulator_list_voltage_linear() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max8998.c | 32 +++++++------------------------- 1 file changed, 7 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 18bb58b9b96e..105dafca3369 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -111,27 +111,6 @@ static const struct voltage_map_desc *ldo_voltage_map[] = { &buck4_voltage_map_desc, /* BUCK4 */ }; -static int max8998_list_voltage(struct regulator_dev *rdev, - unsigned int selector) -{ - const struct voltage_map_desc *desc; - int ldo = rdev_get_id(rdev); - int val; - - if (ldo >= ARRAY_SIZE(ldo_voltage_map)) - return -EINVAL; - - desc = ldo_voltage_map[ldo]; - if (desc == NULL) - return -EINVAL; - - val = desc->min + desc->step * selector; - if (val > desc->max) - return -EINVAL; - - return val * 1000; -} - static int max8998_get_enable_register(struct regulator_dev *rdev, int *reg, int *shift) { @@ -392,8 +371,8 @@ static int max8998_set_voltage_buck(struct regulator_dev *rdev, /* if previous_voltage equal new voltage, return */ if (previous_sel == i) { dev_dbg(max8998->dev, "No voltage change, old:%d, new:%d\n", - max8998_list_voltage(rdev, previous_sel), - max8998_list_voltage(rdev, i)); + regulator_list_voltage_linear(rdev, previous_sel), + regulator_list_voltage_linear(rdev, i)); return ret; } @@ -519,7 +498,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, } static struct regulator_ops max8998_ldo_ops = { - .list_voltage = max8998_list_voltage, + .list_voltage = regulator_list_voltage_linear, .is_enabled = max8998_ldo_is_enabled, .enable = max8998_ldo_enable, .disable = max8998_ldo_disable, @@ -530,7 +509,7 @@ static struct regulator_ops max8998_ldo_ops = { }; static struct regulator_ops max8998_buck_ops = { - .list_voltage = max8998_list_voltage, + .list_voltage = regulator_list_voltage_linear, .is_enabled = max8998_ldo_is_enabled, .enable = max8998_ldo_enable, .disable = max8998_ldo_disable, @@ -860,7 +839,10 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) desc = ldo_voltage_map[id]; if (desc && regulators[index].ops != &max8998_others_ops) { int count = (desc->max - desc->min) / desc->step + 1; + regulators[index].n_voltages = count; + regulators[index].min_uV = desc->min * 1000; + regulators[index].uV_step = desc->step * 1000; } config.dev = max8998->dev; -- cgit v1.2.3 From baae019efe84b6d2c6d5e7e7e1c9cfa130ad6b2a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 17 Jun 2012 09:34:29 +0800 Subject: regulator: max8998: Convert to set_voltage_sel and regulator_map_voltage_linear Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max8998.c | 97 +++++++++++++-------------------------------- 1 file changed, 27 insertions(+), 70 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 105dafca3369..a1fa26613494 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -276,41 +276,18 @@ static int max8998_get_voltage_sel(struct regulator_dev *rdev) return val; } -static int max8998_set_voltage_ldo(struct regulator_dev *rdev, - int min_uV, int max_uV, unsigned *selector) +static int max8998_set_voltage_ldo_sel(struct regulator_dev *rdev, + unsigned selector) { struct max8998_data *max8998 = rdev_get_drvdata(rdev); struct i2c_client *i2c = max8998->iodev->i2c; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; - const struct voltage_map_desc *desc; - int ldo = rdev_get_id(rdev); - int reg, shift = 0, mask, ret, i; - - if (ldo >= ARRAY_SIZE(ldo_voltage_map)) - return -EINVAL; - - desc = ldo_voltage_map[ldo]; - if (desc == NULL) - return -EINVAL; - - if (max_vol < desc->min || min_vol > desc->max) - return -EINVAL; - - if (min_vol < desc->min) - min_vol = desc->min; - - i = DIV_ROUND_UP(min_vol - desc->min, desc->step); - - if (desc->min + desc->step*i > max_vol) - return -EINVAL; - - *selector = i; + int reg, shift = 0, mask, ret; ret = max8998_get_voltage_register(rdev, ®, &shift, &mask); if (ret) return ret; - ret = max8998_update_reg(i2c, reg, i<iodev->dev); struct i2c_client *i2c = max8998->iodev->i2c; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; - const struct voltage_map_desc *desc; int buck = rdev_get_id(rdev); int reg, shift = 0, mask, ret; - int i, j, previous_sel; + int j, previous_sel; static u8 buck1_last_val; - if (buck >= ARRAY_SIZE(ldo_voltage_map)) - return -EINVAL; - - desc = ldo_voltage_map[buck]; - - if (desc == NULL) - return -EINVAL; - - if (max_vol < desc->min || min_vol > desc->max) - return -EINVAL; - - if (min_vol < desc->min) - min_vol = desc->min; - - i = DIV_ROUND_UP(min_vol - desc->min, desc->step); - - if (desc->min + desc->step*i > max_vol) - return -EINVAL; - - *selector = i; - ret = max8998_get_voltage_register(rdev, ®, &shift, &mask); if (ret) return ret; @@ -369,19 +323,19 @@ static int max8998_set_voltage_buck(struct regulator_dev *rdev, /* Check if voltage needs to be changed */ /* if previous_voltage equal new voltage, return */ - if (previous_sel == i) { + if (previous_sel == selector) { dev_dbg(max8998->dev, "No voltage change, old:%d, new:%d\n", regulator_list_voltage_linear(rdev, previous_sel), - regulator_list_voltage_linear(rdev, i)); + regulator_list_voltage_linear(rdev, selector)); return ret; } switch (buck) { case MAX8998_BUCK1: dev_dbg(max8998->dev, - "BUCK1, i:%d, buck1_vol1:%d, buck1_vol2:%d\n" + "BUCK1, selector:%d, buck1_vol1:%d, buck1_vol2:%d\n" "buck1_vol3:%d, buck1_vol4:%d\n", - i, max8998->buck1_vol[0], max8998->buck1_vol[1], + selector, max8998->buck1_vol[0], max8998->buck1_vol[1], max8998->buck1_vol[2], max8998->buck1_vol[3]); if (gpio_is_valid(pdata->buck1_set1) && @@ -390,7 +344,7 @@ static int max8998_set_voltage_buck(struct regulator_dev *rdev, /* check if requested voltage */ /* value is already defined */ for (j = 0; j < ARRAY_SIZE(max8998->buck1_vol); j++) { - if (max8998->buck1_vol[j] == i) { + if (max8998->buck1_vol[j] == selector) { max8998->buck1_idx = j; buck1_gpio_set(pdata->buck1_set1, pdata->buck1_set2, j); @@ -405,11 +359,11 @@ static int max8998_set_voltage_buck(struct regulator_dev *rdev, max8998->buck1_idx = (buck1_last_val % 2) + 2; dev_dbg(max8998->dev, "max8998->buck1_idx:%d\n", max8998->buck1_idx); - max8998->buck1_vol[max8998->buck1_idx] = i; + max8998->buck1_vol[max8998->buck1_idx] = selector; ret = max8998_get_voltage_register(rdev, ®, &shift, &mask); - ret = max8998_write_reg(i2c, reg, i); + ret = max8998_write_reg(i2c, reg, selector); buck1_gpio_set(pdata->buck1_set1, pdata->buck1_set2, max8998->buck1_idx); buck1_last_val++; @@ -419,20 +373,20 @@ buck1_exit: gpio_get_value(pdata->buck1_set2)); break; } else { - ret = max8998_write_reg(i2c, reg, i); + ret = max8998_write_reg(i2c, reg, selector); } break; case MAX8998_BUCK2: dev_dbg(max8998->dev, - "BUCK2, i:%d buck2_vol1:%d, buck2_vol2:%d\n" - , i, max8998->buck2_vol[0], max8998->buck2_vol[1]); + "BUCK2, selector:%d buck2_vol1:%d, buck2_vol2:%d\n", + selector, max8998->buck2_vol[0], max8998->buck2_vol[1]); if (gpio_is_valid(pdata->buck2_set3)) { /* check if requested voltage */ /* value is already defined */ for (j = 0; j < ARRAY_SIZE(max8998->buck2_vol); j++) { - if (max8998->buck2_vol[j] == i) { + if (max8998->buck2_vol[j] == selector) { max8998->buck2_idx = j; buck2_gpio_set(pdata->buck2_set3, j); goto buck2_exit; @@ -444,20 +398,21 @@ buck1_exit: max8998_get_voltage_register(rdev, ®, &shift, &mask); - ret = max8998_write_reg(i2c, reg, i); - max8998->buck2_vol[max8998->buck2_idx] = i; + ret = max8998_write_reg(i2c, reg, selector); + max8998->buck2_vol[max8998->buck2_idx] = selector; buck2_gpio_set(pdata->buck2_set3, max8998->buck2_idx); buck2_exit: dev_dbg(max8998->dev, "%s: SET3:%d\n", i2c->name, gpio_get_value(pdata->buck2_set3)); } else { - ret = max8998_write_reg(i2c, reg, i); + ret = max8998_write_reg(i2c, reg, selector); } break; case MAX8998_BUCK3: case MAX8998_BUCK4: - ret = max8998_update_reg(i2c, reg, i< Date: Tue, 19 Jun 2012 09:38:45 +0800 Subject: regulator: Use list_voltage() to get voltage in regulator_set_voltage_time_sel With this change, regulator_set_voltage_time_sel() can be more generic and not limited to linear and table based mapping now. One side-effect of this change is that list_voltage() must be implemented. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/core.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 26b71048709b..e3597ab09be3 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2296,8 +2296,7 @@ EXPORT_SYMBOL_GPL(regulator_set_voltage_time); * Provided with the starting and target voltage selectors, this function * returns time in microseconds required to rise or fall to this new voltage * - * Drivers providing uV_step or volt_table in their regulator_desc and - * ramp_delay in regulation_constraints can use this as their + * Drivers providing ramp_delay in regulation_constraints can use this as their * set_voltage_time_sel() operation. */ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, @@ -2305,6 +2304,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int new_selector) { unsigned int ramp_delay = 0; + int old_volt, new_volt; if (rdev->constraints->ramp_delay) ramp_delay = rdev->constraints->ramp_delay; @@ -2316,19 +2316,14 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, return 0; } - if (rdev->desc->uV_step) { - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - ramp_delay); - } else if (rdev->desc->volt_table) { - return DIV_ROUND_UP(abs(rdev->desc->volt_table[new_selector] - - rdev->desc->volt_table[old_selector]), - ramp_delay); - } else { - rdev_warn(rdev, "Unsupported voltage mapping settings\n"); - } + /* sanity check */ + if (!rdev->desc->ops->list_voltage) + return -EINVAL; - return 0; + old_volt = rdev->desc->ops->list_voltage(rdev, old_selector); + new_volt = rdev->desc->ops->list_voltage(rdev, new_selector); + + return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); } EXPORT_SYMBOL_GPL(regulator_set_voltage_time_sel); -- cgit v1.2.3 From 2f6ae6ef631cd16b0725958ee805a24b9e38d7ad Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 19 Jun 2012 09:26:52 +0800 Subject: regulator: rc5t583: Use regulator_set_voltage_time_sel() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/rc5t583-regulator.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/rc5t583-regulator.c b/drivers/regulator/rc5t583-regulator.c index 332eae897dab..8bf4e8c9de9a 100644 --- a/drivers/regulator/rc5t583-regulator.c +++ b/drivers/regulator/rc5t583-regulator.c @@ -42,7 +42,6 @@ struct rc5t583_regulator_info { /* Regulator specific turn-on delay and voltage settling time*/ int enable_uv_per_us; - int change_uv_per_us; /* Used by regulator core */ struct regulator_desc desc; @@ -66,17 +65,6 @@ static int rc5t583_regulator_enable_time(struct regulator_dev *rdev) return DIV_ROUND_UP(curr_uV, reg->reg_info->enable_uv_per_us); } -static int rc5t583_set_voltage_time_sel(struct regulator_dev *rdev, - unsigned int old_selector, unsigned int new_selector) -{ - struct rc5t583_regulator *reg = rdev_get_drvdata(rdev); - - return DIV_ROUND_UP(abs(new_selector - old_selector) * - rdev->desc->uV_step, - reg->reg_info->change_uv_per_us); -} - - static struct regulator_ops rc5t583_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, @@ -86,7 +74,7 @@ static struct regulator_ops rc5t583_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, - .set_voltage_time_sel = rc5t583_set_voltage_time_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, }; #define RC5T583_REG(_id, _en_reg, _en_bit, _disc_reg, _disc_bit, \ @@ -96,7 +84,6 @@ static struct regulator_ops rc5t583_ops = { .disc_bit = _disc_bit, \ .deepsleep_reg = RC5T583_REG_##_id##DAC_DS, \ .enable_uv_per_us = _enable_mv * 1000, \ - .change_uv_per_us = 40 * 1000, \ .deepsleep_id = RC5T583_DS_##_id, \ .desc = { \ .name = "rc5t583-regulator-"#_id, \ @@ -111,6 +98,7 @@ static struct regulator_ops rc5t583_ops = { .enable_mask = BIT(_en_bit), \ .min_uV = _min_mv * 1000, \ .uV_step = _step_uV, \ + .ramp_delay = 40 * 1000, \ }, \ } -- cgit v1.2.3 From 1af142c6f9843952d8eaff1c3de40d0b5d16f3ed Mon Sep 17 00:00:00 2001 From: Sangbeom Kim Date: Wed, 13 Jun 2012 17:27:54 +0900 Subject: regulator: Modify ramp_delay value for s5m8767a As s5m8767a is revisioned, ramp_delay register is changed. 5mV/uS, 10mV/uS, 25mV/uS, 50mV/uS, 100mV/uS ramp delay can be selected. Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 22642c3ccf76..533bde68e4b7 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -720,9 +720,13 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) if (s5m8767->buck2_ramp || s5m8767->buck3_ramp || s5m8767->buck4_ramp) { switch (s5m8767->ramp_delay) { - case 15: + case 5: s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, - 0xc0, 0xf0); + 0x40, 0xf0); + break; + case 10: + s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, + 0x90, 0xf0); break; case 25: s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, -- cgit v1.2.3 From 1910efa1d0fdf8109b285d4486f6a0de810b5574 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 23 Jun 2012 13:07:57 +0100 Subject: regulator: Add driver for Arizona LDO1 Arizona class devices feature an integrated LDO which is intended to supply the digital core for the device. Provide a driver offering minimal control of this regulator. Signed-off-by: Mark Brown --- drivers/regulator/Makefile | 2 +- drivers/regulator/arizona-ldo1.c | 134 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 135 insertions(+), 1 deletion(-) create mode 100644 drivers/regulator/arizona-ldo1.c (limited to 'drivers') diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index ec4a0cfb3ca7..c7460888edcb 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o -obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o +obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o obj-$(CONFIG_REGULATOR_DA903X) += da903x.o obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c new file mode 100644 index 000000000000..51f02cac443f --- /dev/null +++ b/drivers/regulator/arizona-ldo1.c @@ -0,0 +1,134 @@ +/* + * arizona-ldo1.c -- LDO1 supply for Arizona devices + * + * Copyright 2012 Wolfson Microelectronics PLC. + * + * Author: Mark Brown + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +struct arizona_ldo1 { + struct regulator_dev *regulator; + struct arizona *arizona; + + struct regulator_consumer_supply supply; + struct regulator_init_data init_data; +}; + +static struct regulator_ops arizona_ldo1_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static const struct regulator_desc arizona_ldo1 = { + .name = "LDO1", + .supply_name = "LDOVDD", + .type = REGULATOR_VOLTAGE, + .ops = &arizona_ldo1_ops, + + .vsel_reg = ARIZONA_LDO1_CONTROL_1, + .vsel_mask = ARIZONA_LDO1_VSEL_MASK, + .min_uV = 900000, + .uV_step = 50000, + .n_voltages = 7, + + .owner = THIS_MODULE, +}; + +static const struct regulator_init_data arizona_ldo1_default = { + .num_consumer_supplies = 1, +}; + +static __devinit int arizona_ldo1_probe(struct platform_device *pdev) +{ + struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = { }; + struct arizona_ldo1 *ldo1; + int ret; + + ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL); + if (ldo1 == NULL) { + dev_err(&pdev->dev, "Unable to allocate private data\n"); + return -ENOMEM; + } + + ldo1->arizona = arizona; + + /* + * Since the chip usually supplies itself we provide some + * default init_data for it. This will be overridden with + * platform data if provided. + */ + ldo1->init_data = arizona_ldo1_default; + ldo1->init_data.consumer_supplies = &ldo1->supply; + ldo1->supply.supply = "DCVDD"; + ldo1->supply.dev_name = dev_name(arizona->dev); + + config.dev = arizona->dev; + config.driver_data = ldo1; + config.regmap = arizona->regmap; + + if (arizona->pdata.ldo1) + config.init_data = arizona->pdata.ldo1; + else + config.init_data = &ldo1->init_data; + + ldo1->regulator = regulator_register(&arizona_ldo1, &config); + if (IS_ERR(ldo1->regulator)) { + ret = PTR_ERR(ldo1->regulator); + dev_err(arizona->dev, "Failed to register LDO1 supply: %d\n", + ret); + return ret; + } + + platform_set_drvdata(pdev, ldo1); + + return 0; +} + +static __devexit int arizona_ldo1_remove(struct platform_device *pdev) +{ + struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev); + + regulator_unregister(ldo1->regulator); + + return 0; +} + +static struct platform_driver arizona_ldo1_driver = { + .probe = arizona_ldo1_probe, + .remove = __devexit_p(arizona_ldo1_remove), + .driver = { + .name = "arizona-ldo1", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(arizona_ldo1_driver); + +/* Module information */ +MODULE_AUTHOR("Mark Brown "); +MODULE_DESCRIPTION("Arizona LDO1 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:arizona-ldo1"); -- cgit v1.2.3 From ac1534a55d1e87d59a21c09c570605933b551480 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 21 Jun 2012 14:52:40 +0200 Subject: iommu/amd: Initialize dma_ops for hotplug and sriov devices When a device is added to the system at runtime the AMD IOMMU driver initializes the necessary data structures to handle translation for it. But it forgets to change the per-device dma_ops to point to the AMD IOMMU driver. So mapping actually never happens and all DMA accesses end in an IO_PAGE_FAULT. Fix this. Reported-by: Stefan Assmann Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index a2e418cba0ff..dfe7d37c82c5 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -83,6 +83,8 @@ static struct iommu_ops amd_iommu_ops; static ATOMIC_NOTIFIER_HEAD(ppr_notifier); int amd_iommu_max_glx_val = -1; +static struct dma_map_ops amd_iommu_dma_ops; + /* * general struct to manage commands send to an IOMMU */ @@ -2267,6 +2269,13 @@ static int device_change_notifier(struct notifier_block *nb, list_add_tail(&dma_domain->list, &iommu_pd_list); spin_unlock_irqrestore(&iommu_pd_list_lock, flags); + dev_data = get_dev_data(dev); + + if (!dev_data->passthrough) + dev->archdata.dma_ops = &amd_iommu_dma_ops; + else + dev->archdata.dma_ops = &nommu_dma_ops; + break; case BUS_NOTIFY_DEL_DEVICE: -- cgit v1.2.3 From 90e614bb4c581eb588ec26f130fcdd65aa047fa8 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 11:35:04 -0300 Subject: [media] s5p-fimc: Fix bug in capture node open() When video pipeline initialization fails, the ST_CAPT_BUSY flag needs to be cleared before pm_runtime_put_sync is called. Otherwise the runtime suspend routine tries to suspend device, rather than just turning it off. Also fix potential null pointer dereference in fimc_pipeline_shutdown(). Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 2 +- drivers/media/video/s5p-fimc/fimc-mdevice.c | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 354574591908..7083107c2b37 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -499,10 +499,10 @@ static int fimc_capture_open(struct file *file) if (ret < 0) { dev_err(&fimc->pdev->dev, "Video pipeline initialization failed\n"); + clear_bit(ST_CAPT_BUSY, &fimc->state); pm_runtime_put_sync(&fimc->pdev->dev); fimc->vid_cap.refcnt--; v4l2_fh_release(file); - clear_bit(ST_CAPT_BUSY, &fimc->state); return ret; } ret = fimc_capture_ctrls_create(fimc); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 6753c45631b8..7450dcdafc87 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -193,9 +193,13 @@ int __fimc_pipeline_shutdown(struct fimc_pipeline *p) int fimc_pipeline_shutdown(struct fimc_pipeline *p) { - struct media_entity *me = &p->subdevs[IDX_SENSOR]->entity; + struct media_entity *me; int ret; + if (!p || !p->subdevs[IDX_SENSOR]) + return -EINVAL; + + me = &p->subdevs[IDX_SENSOR]->entity; mutex_lock(&me->parent->graph_mutex); ret = __fimc_pipeline_shutdown(p); mutex_unlock(&me->parent->graph_mutex); -- cgit v1.2.3 From d0da3c3565a1dd3cdfa374038d6ccae4b90fe142 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 13:08:30 -0300 Subject: [media] s5p-fimc: Don't create multiple active links to same sink entity The driver is supposed to create active media link from sensor N (or its corresponding s5p-mipi-csis entity) to FIMC.N by default. Instead s5p-mipi-csis.N entity gets always connected by a default active link to FIMC.N, regardless of there are parallel bus sensor entities already connected to FIMC.N. Correct this. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-mdevice.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 7450dcdafc87..dffe4da5eaa0 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -502,12 +502,12 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd) * @source: the source entity to create links to all fimc entities from * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null * @pad: the source entity pad index - * @fimc_id: index of the fimc device for which link should be enabled + * @link_mask: bitmask of the fimc devices for which link should be enabled */ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, struct media_entity *source, struct v4l2_subdev *sensor, - int pad, int fimc_id) + int pad, int link_mask) { struct fimc_sensor_info *s_info; struct media_entity *sink; @@ -524,7 +524,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, if (!fmd->fimc[i]->variant->has_cam_if) continue; - flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0; + flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; sink = &fmd->fimc[i]->vid_cap.subdev.entity; ret = media_entity_create_link(source, pad, sink, @@ -556,7 +556,10 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, if (!fmd->fimc_lite[i]) continue; - flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0; + if (link_mask & (1 << (i + FIMC_MAX_DEVS))) + flags = MEDIA_LNK_FL_ENABLED; + else + flags = 0; sink = &fmd->fimc_lite[i]->subdev.entity; ret = media_entity_create_link(source, pad, sink, @@ -618,9 +621,8 @@ static int fimc_md_create_links(struct fimc_md *fmd) struct s5p_fimc_isp_info *pdata; struct fimc_sensor_info *s_info; struct media_entity *source, *sink; - int i, pad, fimc_id = 0; - int ret = 0; - u32 flags; + int i, pad, fimc_id = 0, ret = 0; + u32 flags, link_mask = 0; for (i = 0; i < fmd->num_sensors; i++) { if (fmd->sensor[i].subdev == NULL) @@ -672,19 +674,20 @@ static int fimc_md_create_links(struct fimc_md *fmd) if (source == NULL) continue; + link_mask = 1 << fimc_id++; ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, - pad, fimc_id++); + pad, link_mask); } - fimc_id = 0; for (i = 0; i < ARRAY_SIZE(fmd->csis); i++) { if (fmd->csis[i].sd == NULL) continue; source = &fmd->csis[i].sd->entity; pad = CSIS_PAD_SOURCE; + link_mask = 1 << fimc_id++; ret = __fimc_md_create_fimc_sink_links(fmd, source, NULL, - pad, fimc_id++); + pad, link_mask); } /* Create immutable links between each FIMC's subdev and video node */ -- cgit v1.2.3 From d547ab66e275e2f6bf703572e943018ef7c391c5 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 15:00:26 -0300 Subject: [media] s5p-fimc: Honour sizeimage in VIDIOC_S_FMT Allow memory buffer size to be increased by means of struct v4l2_pix_plane_format::sizeimage at VIDIOC_S_FMT ioctl. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 7 ++++--- drivers/media/video/s5p-fimc/fimc-core.c | 9 +++++---- 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 7083107c2b37..13df7230c8d8 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -350,7 +350,8 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, if (pixm) sizes[i] = max(size, pixm->plane_fmt[i].sizeimage); else - sizes[i] = size; + sizes[i] = max_t(u32, size, frame->payload[i]); + allocators[i] = ctx->fimc_dev->alloc_ctx; } @@ -924,10 +925,10 @@ static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) pix->width = mf->width; pix->height = mf->height; } + fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); for (i = 0; i < ff->fmt->colplanes; i++) - ff->payload[i] = - (pix->width * pix->height * ff->fmt->depth[i]) / 8; + ff->payload[i] = pix->plane_fmt[i].sizeimage; set_frame_bounds(ff, pix->width, pix->height); /* Reset the composition rectangle if not yet configured */ diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 92fc5a20fb76..65124a24c30f 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -741,8 +741,8 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, pix->width = width; for (i = 0; i < pix->num_planes; ++i) { - u32 bpl = pix->plane_fmt[i].bytesperline; - u32 *sizeimage = &pix->plane_fmt[i].sizeimage; + struct v4l2_plane_pix_format *plane_fmt = &pix->plane_fmt[i]; + u32 bpl = plane_fmt->bytesperline; if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width)) bpl = pix->width; /* Planar */ @@ -754,8 +754,9 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, if (i == 0) /* Same bytesperline for each plane. */ bytesperline = bpl; - pix->plane_fmt[i].bytesperline = bytesperline; - *sizeimage = (pix->width * pix->height * fmt->depth[i]) / 8; + plane_fmt->bytesperline = bytesperline; + plane_fmt->sizeimage = max((pix->width * pix->height * + fmt->depth[i]) / 8, plane_fmt->sizeimage); } } -- cgit v1.2.3 From 0b4b1f199d367762ddb68cb3303431fa6c84a7d6 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 15:03:50 -0300 Subject: [media] s5p-fimc: Remove superfluous checks for buffer type The checks are already done at the v4l2 framework. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 8 -------- 1 file changed, 8 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 13df7230c8d8..0fd12dfbd3db 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -819,9 +819,6 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; - return fimc_fill_format(&ctx->d_frame, f); } @@ -834,9 +831,6 @@ static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, struct v4l2_mbus_framefmt mf; struct fimc_fmt *ffmt = NULL; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; - if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { fimc_capture_try_format(ctx, &pix->width, &pix->height, NULL, &pix->pixelformat, @@ -888,8 +882,6 @@ static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) struct fimc_fmt *s_fmt = NULL; int ret, i; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; if (vb2_is_busy(&fimc->vid_cap.vbq)) return -EBUSY; -- cgit v1.2.3 From e3fc82e8b9f550d28f05600b98bcc8c26beef2ef Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 17 May 2012 14:22:10 -0300 Subject: [media] s5p-fimc: Prevent lock-up in multiple sensor systems The camera clocks managed by the driver were improperly reference counted and remained disabled when multiple video nodes were opened simultaneously. It manifested itself with following warning: [12.920000] WARNING: at drivers/media/video/s5p-fimc/fimc-mdevice.c:787 __fimc_md_set_camclk+0x1c0/0x1dc() [13.005000] Modules linked in: [13.005000] Backtrace: [13.040000] [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c) [13.070000] r7:00000009 r6:00000313 r5:c02d576c r4:00000000 [13.155000] [] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x54/0x6c) [13.285000] [] (warn_slowpath_common+0x0/0x6c) from [] (warn_slowpath_null+0x24/0x2c) [13.360000] r9:e1981010 r8:00000000 r7:c061d3fc r6:e1981010 r5:e1981030 [13.430000] r4:00000000 [13.430000] [] (warn_slowpath_null+0x0/0x2c) from [] (__fimc_md_set_camclk+0x1c0/0x1dc) [13.550000] [] (__fimc_md_set_camclk+0x0/0x1dc) from [] (fimc_md_set_camclk+0x28/0x2c) [13.630000] [] (fimc_md_set_camclk+0x0/0x2c) from [] (__fimc_pipeline_shutdown+0x34/0x50) [13.705000] [] (__fimc_pipeline_shutdown+0x0/0x50) from [] (fimc_pipeline_shutdown+0x40/0x58) [13.765000] r5:e2391200 r4:e2357704 [13.805000] [] (fimc_pipeline_shutdown+0x0/0x58) from [] (fimc_capture_close+0xcc/0xe4) [13.915000] r5:e1b396c0 r4:e2357410 [13.915000] [] (fimc_capture_close+0x0/0xe4) from [] (v4l2_release+0x5c/0x80) [13.970000] r7:00000010 r6:e1d2d990 r5:e1b396c0 r4:e2394800 [14.000000] [] (v4l2_release+0x0/0x80) from [] (fput+0xc0/0x22c) [14.015000] r5:c157ef30 r4:e1b396c0 [14.015000] [] (fput+0x0/0x22c) from [] (filp_close+0x60/0x80) [14.080000] [] (filp_close+0x0/0x80) from [] (sys_close+0xb8/0xf4) [14.125000] r7:00000001 r6:e1b396c0 r5:c1400340 r4:c1400300 [14.125000] [] (sys_close+0x0/0xf4) from [] (ret_fast_syscall+0x0/0x30) [14.205000] r7:00000006 r6:beee5b94 r5:00000003 r4:b6f64fac Fix this, as well as potential memory leaks due to not calling v4l2_fh_release() on some error paths. Also remove some error logs printed for events that aren't critical and are normal conditions for some system configurations. Also check if the device have been properly run-time enabled during video node open. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 46 +++++++++++++++-------------- drivers/media/video/s5p-fimc/fimc-lite.c | 14 +++++---- drivers/media/video/s5p-fimc/fimc-mdevice.c | 19 ++++-------- drivers/media/video/s5p-fimc/fimc-mdevice.h | 2 -- 4 files changed, 38 insertions(+), 43 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 0fd12dfbd3db..71e483847a17 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -480,37 +480,39 @@ static int fimc_capture_set_default_format(struct fimc_dev *fimc); static int fimc_capture_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); - int ret = v4l2_fh_open(file); - - if (ret) - return ret; + int ret; dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); - /* Return if the corresponding video mem2mem node is already opened. */ if (fimc_m2m_active(fimc)) return -EBUSY; set_bit(ST_CAPT_BUSY, &fimc->state); - pm_runtime_get_sync(&fimc->pdev->dev); - - if (++fimc->vid_cap.refcnt == 1) { - ret = fimc_pipeline_initialize(&fimc->pipeline, - &fimc->vid_cap.vfd->entity, true); - if (ret < 0) { - dev_err(&fimc->pdev->dev, - "Video pipeline initialization failed\n"); - clear_bit(ST_CAPT_BUSY, &fimc->state); - pm_runtime_put_sync(&fimc->pdev->dev); - fimc->vid_cap.refcnt--; - v4l2_fh_release(file); - return ret; - } - ret = fimc_capture_ctrls_create(fimc); + ret = pm_runtime_get_sync(&fimc->pdev->dev); + if (ret < 0) + return ret; + + ret = v4l2_fh_open(file); + if (ret) + return ret; + + if (++fimc->vid_cap.refcnt != 1) + return 0; - if (!ret && !fimc->vid_cap.user_subdev_api) - ret = fimc_capture_set_default_format(fimc); + ret = fimc_pipeline_initialize(&fimc->pipeline, + &fimc->vid_cap.vfd->entity, true); + if (ret < 0) { + clear_bit(ST_CAPT_BUSY, &fimc->state); + pm_runtime_put_sync(&fimc->pdev->dev); + fimc->vid_cap.refcnt--; + v4l2_fh_release(file); + return ret; } + ret = fimc_capture_ctrls_create(fimc); + + if (!ret && !fimc->vid_cap.user_subdev_api) + ret = fimc_capture_set_default_format(fimc); + return ret; } diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index 400d701aef04..bbe93e4a8731 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -451,21 +451,23 @@ static void fimc_lite_clear_event_counters(struct fimc_lite *fimc) static int fimc_lite_open(struct file *file) { struct fimc_lite *fimc = video_drvdata(file); - int ret = v4l2_fh_open(file); - - if (ret) - return ret; + int ret; set_bit(ST_FLITE_IN_USE, &fimc->state); - pm_runtime_get_sync(&fimc->pdev->dev); + ret = pm_runtime_get_sync(&fimc->pdev->dev); + if (ret < 0) + return ret; if (++fimc->ref_count != 1 || fimc->out_path != FIMC_IO_DMA) + return 0; + + ret = v4l2_fh_open(file); + if (ret < 0) return ret; ret = fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, true); if (ret < 0) { - v4l2_err(fimc->vfd, "Video pipeline initialization failed\n"); pm_runtime_put_sync(&fimc->pdev->dev); fimc->ref_count--; v4l2_fh_release(file); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index dffe4da5eaa0..52cef4865423 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -741,8 +741,8 @@ static void fimc_md_put_clocks(struct fimc_md *fmd) } static int __fimc_md_set_camclk(struct fimc_md *fmd, - struct fimc_sensor_info *s_info, - bool on) + struct fimc_sensor_info *s_info, + bool on) { struct s5p_fimc_isp_info *pdata = s_info->pdata; struct fimc_camclk_info *camclk; @@ -751,12 +751,10 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, if (WARN_ON(pdata->clk_id >= FIMC_MAX_CAMCLKS) || fmd == NULL) return -EINVAL; - if (s_info->clk_on == on) - return 0; camclk = &fmd->camclk[pdata->clk_id]; - dbg("camclk %d, f: %lu, clk: %p, on: %d", - pdata->clk_id, pdata->clk_frequency, camclk, on); + dbg("camclk %d, f: %lu, use_count: %d, on: %d", + pdata->clk_id, pdata->clk_frequency, camclk->use_count, on); if (on) { if (camclk->use_count > 0 && @@ -767,11 +765,9 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, clk_set_rate(camclk->clock, pdata->clk_frequency); camclk->frequency = pdata->clk_frequency; ret = clk_enable(camclk->clock); + dbg("Enabled camclk %d: f: %lu", pdata->clk_id, + clk_get_rate(camclk->clock)); } - s_info->clk_on = 1; - dbg("Enabled camclk %d: f: %lu", pdata->clk_id, - clk_get_rate(camclk->clock)); - return ret; } @@ -780,7 +776,6 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, if (--camclk->use_count == 0) { clk_disable(camclk->clock); - s_info->clk_on = 0; dbg("Disabled camclk %d", pdata->clk_id); } return ret; @@ -796,8 +791,6 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, * devices to which sensors can be attached, either directly or through * the MIPI CSI receiver. The clock is allowed here to be used by * multiple sensors concurrently if they use same frequency. - * The per sensor subdev clk_on attribute helps to synchronize accesses - * to the sclk_cam clocks from the video and media device nodes. * This function should only be called when the graph mutex is held. */ int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.h b/drivers/media/video/s5p-fimc/fimc-mdevice.h index 3b8a3492a176..1f5dbaff5442 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.h +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.h @@ -47,7 +47,6 @@ struct fimc_camclk_info { * @pdata: sensor's atrributes passed as media device's platform data * @subdev: image sensor v4l2 subdev * @host: fimc device the sensor is currently linked to - * @clk_on: sclk_cam clock's state associated with this subdev * * This data structure applies to image sensor and the writeback subdevs. */ @@ -55,7 +54,6 @@ struct fimc_sensor_info { struct s5p_fimc_isp_info *pdata; struct v4l2_subdev *subdev; struct fimc_dev *host; - bool clk_on; }; /** -- cgit v1.2.3 From 316efab3e949e4fbdacb0975bf33adbad89115db Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 18 May 2012 13:31:28 -0300 Subject: [media] s5p-fimc: Fix fimc-lite system wide suspend procedure Only suspend the video pipeline devices if they were active before the pm.suspend() helper is called. This patch prevents following error: /# echo mem > /sys/power/state [ 34.965000] PM: Syncing filesystems ... done. [ 35.035000] Freezing user space processes ... (elapsed 0.01 seconds) done. ... [ 35.105000] dpm_run_callback(): platform_pm_suspend+0x0/0x5c returns -22 [ 35.105000] PM: Device exynos-fimc-lite.1 failed to suspend: error -22 [ 35.105000] PM: Some devices failed to suspend Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index bbe93e4a8731..b0a8ce61ebf2 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -1510,7 +1510,7 @@ static int fimc_lite_suspend(struct device *dev) return 0; ret = fimc_lite_stop_capture(fimc, suspend); - if (ret) + if (ret < 0 || !fimc_lite_active(fimc)) return ret; return fimc_pipeline_shutdown(&fimc->pipeline); -- cgit v1.2.3 From 0a198bcd511fcc60dc5daa203d221aafc95e0471 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Tue, 22 May 2012 13:50:14 -0300 Subject: [media] s5p-fimc: Shorten pixel formats description Shorten pixel format descriptions that exceed 32 characters so they're not being truncated when queried from user space. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 65124a24c30f..987bff20cc34 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -153,7 +153,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 2, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr", + .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr", .fourcc = V4L2_PIX_FMT_NV12M, .color = FIMC_FMT_YCBCR420, .depth = { 8, 4 }, @@ -161,7 +161,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 2, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 3-planar, Y/Cb/Cr", + .name = "YUV 4:2:0 non-contig. 3p, Y/Cb/Cr", .fourcc = V4L2_PIX_FMT_YUV420M, .color = FIMC_FMT_YCBCR420, .depth = { 8, 2, 2 }, @@ -169,7 +169,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 3, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr, tiled", + .name = "YUV 4:2:0 non-contig. 2p, tiled", .fourcc = V4L2_PIX_FMT_NV12MT, .color = FIMC_FMT_YCBCR420, .depth = { 8, 4 }, -- cgit v1.2.3 From 8183e7a7e2a4b542bd3044c5e3b0e116b0a7d2a1 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 25 May 2012 07:04:01 -0300 Subject: [media] s5p-fimc: Update to the control handler lock changes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 77e7c4e624404c6edb5686b3d5f873c6008ed6b0 "v4l: Allow changing control handler lock" changed the lock field of struct v4l2_ctrl_handler to a pointer and this driver wasn't updated properly. This patch fixes following warning: drivers/media/video/s5p-fimc/fimc-core.c: In function ‘fimc_ctrls_activate’: drivers/media/video/s5p-fimc/fimc-core.c:644: warning: passing argument 1 of ‘mutex_lock’ from incompatible pointer type include/linux/mutex.h:152: note: expected ‘struct mutex *’ but argument is of type ‘struct mutex **’ drivers/media/video/s5p-fimc/fimc-core.c:663: warning: passing argument 1 of ‘mutex_unlock’ from incompatible pointer type include/linux/mutex.h:169: note: expected ‘struct mutex *’ but argument is of type ‘struct mutex **’ Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 987bff20cc34..a4646ca1d56f 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -641,7 +641,7 @@ void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active) if (!ctrls->ready) return; - mutex_lock(&ctrls->handler.lock); + mutex_lock(ctrls->handler.lock); v4l2_ctrl_activate(ctrls->rotate, active); v4l2_ctrl_activate(ctrls->hflip, active); v4l2_ctrl_activate(ctrls->vflip, active); @@ -660,7 +660,7 @@ void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active) ctx->hflip = 0; ctx->vflip = 0; } - mutex_unlock(&ctrls->handler.lock); + mutex_unlock(ctrls->handler.lock); } /* Update maximum value of the alpha color control */ -- cgit v1.2.3 From a60a295986edcbca6603cd42b4e38d7c83d87fb6 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 25 May 2012 07:08:05 -0300 Subject: [media] s5p-fimc: media_entity_pipeline_start() may fail Take into account media_entity_pipeline_start() may fail. [s.nawrocki: rebased onto latest tree] Signed-off-by: Sakari Ailus Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 71e483847a17..7ace324d30cd 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1045,8 +1045,10 @@ static int fimc_cap_streamon(struct file *file, void *priv, if (fimc_capture_active(fimc)) return -EBUSY; - media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, + ret = media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, p->m_pipeline); + if (ret < 0) + return ret; if (fimc->vid_cap.user_subdev_api) { ret = fimc_pipeline_validate(fimc); -- cgit v1.2.3 From a1a5861bd9ca3a6cb7ab89dd836da8cd158986b0 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 25 May 2012 03:29:38 -0300 Subject: [media] s5p-fimc: Fix compiler warning in fimc-lite.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch is an update to changed media_entity_pipeline_start() signature in commit af88be3887c1a0b20d0792c3c237a67c73ef3286, "media: Add link_validate() op to check links to the sink pad" It fixes the following warning: drivers/media/video/s5p-fimc/fimc-lite.c: In function ‘fimc_lite_streamon’: drivers/media/video/s5p-fimc/fimc-lite.c:765:29: warning: ignoring return value of ‘media_entity_pipeline_start’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index b0a8ce61ebf2..4d269b8fa1ef 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -764,7 +764,9 @@ static int fimc_lite_streamon(struct file *file, void *priv, if (fimc_lite_active(fimc)) return -EBUSY; - media_entity_pipeline_start(&sensor->entity, p->m_pipeline); + ret = media_entity_pipeline_start(&sensor->entity, p->m_pipeline); + if (ret < 0) + return ret; ret = fimc_pipeline_validate(fimc); if (ret) { -- cgit v1.2.3 From f676fa068819357f716953920b764554fe116b3c Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 25 May 2012 03:29:40 -0300 Subject: [media] s5p-fimc: Stop media entity pipeline if fimc_pipeline_validate fails Stops the media entity pipeline which was started earlier if fimc_pipeline_validate fails. [s.nawrocki: reworked to not exceed 80 characters line length] Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 7ace324d30cd..725812aa0c30 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1040,20 +1040,22 @@ static int fimc_cap_streamon(struct file *file, void *priv, { struct fimc_dev *fimc = video_drvdata(file); struct fimc_pipeline *p = &fimc->pipeline; + struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR]; int ret; if (fimc_capture_active(fimc)) return -EBUSY; - ret = media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, - p->m_pipeline); + ret = media_entity_pipeline_start(&sd->entity, p->m_pipeline); if (ret < 0) return ret; if (fimc->vid_cap.user_subdev_api) { ret = fimc_pipeline_validate(fimc); - if (ret) + if (ret < 0) { + media_entity_pipeline_stop(&sd->entity); return ret; + } } return vb2_streamon(&fimc->vid_cap.vbq, type); } -- cgit v1.2.3 From bed3d9c0b71f9afbfec905cb6db3b9f16be29d4d Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 23 Jun 2012 19:23:31 +0200 Subject: ath9k: fix dynamic WEP related regression commit 7a532fe7131216a02c81a6c1b1f8632da1195a58 ath9k_hw: fix interpretation of the rx KeyMiss flag This commit used the rx key miss indication to detect packets that were passed from the hardware without being decrypted, however it seems that this bit is not only undefined in the static WEP case, but also for dynamically allocated WEP keys. This caused a regression when using WEP-LEAP. This patch fixes the regression by keeping track of which key indexes refer to CCMP keys and only using the key miss indication for those. Reported-by: Stanislaw Gruszka Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath.h | 1 + drivers/net/wireless/ath/ath9k/recv.c | 3 ++- drivers/net/wireless/ath/key.c | 4 ++++ 3 files changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h index c54b7d37bff1..420d69b2674c 100644 --- a/drivers/net/wireless/ath/ath.h +++ b/drivers/net/wireless/ath/ath.h @@ -143,6 +143,7 @@ struct ath_common { u32 keymax; DECLARE_BITMAP(keymap, ATH_KEYMAX); DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX); + DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX); enum ath_crypt_caps crypt_caps; unsigned int clockrate; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index e1fcc68124dc..599667ababee 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -822,7 +822,8 @@ static bool ath9k_rx_accept(struct ath_common *common, * descriptor does contain a valid key index. This has been observed * mostly with CCMP encryption. */ - if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID) + if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID || + !test_bit(rx_stats->rs_keyix, common->ccmp_keymap)) rx_stats->rs_status &= ~ATH9K_RXERR_KEYMISS; if (!rx_stats->rs_datalen) { diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c index 0e81904956cf..5c54aa43ca2d 100644 --- a/drivers/net/wireless/ath/key.c +++ b/drivers/net/wireless/ath/key.c @@ -556,6 +556,9 @@ int ath_key_config(struct ath_common *common, return -EIO; set_bit(idx, common->keymap); + if (key->cipher == WLAN_CIPHER_SUITE_CCMP) + set_bit(idx, common->ccmp_keymap); + if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { set_bit(idx + 64, common->keymap); set_bit(idx, common->tkip_keymap); @@ -582,6 +585,7 @@ void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key) return; clear_bit(key->hw_key_idx, common->keymap); + clear_bit(key->hw_key_idx, common->ccmp_keymap); if (key->cipher != WLAN_CIPHER_SUITE_TKIP) return; -- cgit v1.2.3 From ff0b804632f025b072f81fc0cd585102b0a43534 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 24 Jun 2012 19:17:00 -0700 Subject: wlcore: drop INET dependency Mainline build reports: warning: (WL12XX) selects WLCORE which has unmet direct dependencies (NETDEVICES && WLAN && WL_TI && GENERIC_HARDIRQS && MAC80211 && INET) The INET dependency was added in commit 3c6af5b54fe74b6e56efadc22927e4055d00e9fc: wl1271_main.c:(.text+0x271052): undefined reference to `unregister_inetaddr_ notifier' wl1271_main.c:(.text+0x2714d7): undefined reference to `register_inetaddr_no tifier' Driver is doing some filtering based on IP addresses... but this driver no longer has that code and it builds fine even when CONFIG_INET is not enabled, so drop that dependency and eliminate the kconfig warning message. Signed-off-by: Randy Dunlap Cc: Luciano Coelho Cc: John W. Linville Acked-by: Luciano Coelho Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wlcore/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ti/wlcore/Kconfig b/drivers/net/wireless/ti/wlcore/Kconfig index 54156b0b5c2d..d7b907e67170 100644 --- a/drivers/net/wireless/ti/wlcore/Kconfig +++ b/drivers/net/wireless/ti/wlcore/Kconfig @@ -1,7 +1,6 @@ config WLCORE tristate "TI wlcore support" depends on WL_TI && GENERIC_HARDIRQS && MAC80211 - depends on INET select FW_LOADER ---help--- This module contains the main code for TI WLAN chips. It abstracts -- cgit v1.2.3 From eac9ac6d1f5d0e9d33e4ded682187b630e7606cd Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 25 Jun 2012 09:36:41 +0200 Subject: iwlwifi: fix activating inactive stations When authentication/association timed out, the driver would complain bitterly, printing the message ACTIVATE a non DRIVER active station id ... addr ... The cause turns out to be that when the AP station is added but we don't associate, the IWL_STA_UCODE_INPROGRESS is set but never cleared. This then causes iwl_restore_stations() to attempt to resend it because it uses the flag internally and uploads even if it didn't set it itself. To fix this issue and not upload the station again when it has already been removed by mac80211, clear the flag after adding it in case we add it only for association. Cc: stable@vger.kernel.org Reviewed-by: Meenakshi Venkataraman Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-mac80211.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-mac80211.c b/drivers/net/wireless/iwlwifi/iwl-mac80211.c index 3ee23134c02b..013680332f07 100644 --- a/drivers/net/wireless/iwlwifi/iwl-mac80211.c +++ b/drivers/net/wireless/iwlwifi/iwl-mac80211.c @@ -796,6 +796,18 @@ int iwlagn_mac_sta_state(struct ieee80211_hw *hw, switch (op) { case ADD: ret = iwlagn_mac_sta_add(hw, vif, sta); + if (ret) + break; + /* + * Clear the in-progress flag, the AP station entry was added + * but we'll initialize LQ only when we've associated (which + * would also clear the in-progress flag). This is necessary + * in case we never initialize LQ because association fails. + */ + spin_lock_bh(&priv->sta_lock); + priv->stations[iwl_sta_id(sta)].used &= + ~IWL_STA_UCODE_INPROGRESS; + spin_unlock_bh(&priv->sta_lock); break; case REMOVE: ret = iwlagn_mac_sta_remove(hw, vif, sta); -- cgit v1.2.3 From 7f217d36dce7e3e2789cfbd91ae53a36a98df837 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 26 Jun 2012 18:37:58 +0800 Subject: regulator: arizona-micsupp: Fix choosing selector in arizona_micsupp_map_voltage If min_uV is in the range of: 3250001~3269999, current code uses the equation: selector = DIV_ROUND_UP(min_uV - 1700000, 50000); Then selector will be 32. Then arizona_micsupp_list_voltage returns -EINVAL for this case which is wrong. This patch fixes this issue: If min_uV > 3200000, selector should be ARIZONA_MICSUPP_MAX_SELECTOR. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/arizona-micsupp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index 97d85b09a940..fdd7473ada4a 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -57,7 +57,7 @@ static int arizona_micsupp_map_voltage(struct regulator_dev *rdev, if (min_uV < 1700000) min_uV = 1700000; - if (min_uV >= 3300000) + if (min_uV > 3200000) selector = ARIZONA_MICSUPP_MAX_SELECTOR; else selector = DIV_ROUND_UP(min_uV - 1700000, 50000); -- cgit v1.2.3 From e2eb169b1bc207dd1a79109d85b098b241be2e9b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 18 Jun 2012 14:25:27 +0800 Subject: regulator: s5m8767: Convert to regulator_list_voltage_linear In current code, .list_voltage and .set_voltage_sel callbacks for BUCK7 and BUCK8 return -EINVAL. This patch adds s5m8767_buck78_ops for BUCK7 and BUCK8 which does not set .list_voltage, .get_voltage_sel and .set_voltage_sel. ( This has the same effect of returning -EINVAL in the callbacks) Then for all the users of s5m8767_list_voltage, we don't need to worry about the case reg_voltage_map[reg_id] is NULL. So we can convert s5m8767_list_voltage to regulator_list_voltage_linear. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 46 +++++++++++++++++++++------------------------ 1 file changed, 21 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 533bde68e4b7..1ad9c3c0da8d 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -121,27 +121,6 @@ static const struct s5m_voltage_desc *reg_voltage_map[] = { [S5M8767_BUCK9] = &buck_voltage_val3, }; -static int s5m8767_list_voltage(struct regulator_dev *rdev, - unsigned int selector) -{ - const struct s5m_voltage_desc *desc; - int reg_id = rdev_get_id(rdev); - int val; - - if (reg_id >= ARRAY_SIZE(reg_voltage_map) || reg_id < 0) - return -EINVAL; - - desc = reg_voltage_map[reg_id]; - if (desc == NULL) - return -EINVAL; - - val = desc->min + desc->step * selector; - if (val > desc->max) - return -EINVAL; - - return val; -} - static unsigned int s5m8767_opmode_reg[][4] = { /* {OFF, ON, LOWPOWER, SUSPEND} */ /* LDO1 ... LDO28 */ @@ -449,7 +428,7 @@ static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev, } static struct regulator_ops s5m8767_ops = { - .list_voltage = s5m8767_list_voltage, + .list_voltage = regulator_list_voltage_linear, .is_enabled = s5m8767_reg_is_enabled, .enable = s5m8767_reg_enable, .disable = s5m8767_reg_disable, @@ -458,6 +437,12 @@ static struct regulator_ops s5m8767_ops = { .set_voltage_time_sel = s5m8767_set_voltage_time_sel, }; +static struct regulator_ops s5m8767_buck78_ops = { + .is_enabled = s5m8767_reg_is_enabled, + .enable = s5m8767_reg_enable, + .disable = s5m8767_reg_disable, +}; + #define s5m8767_regulator_desc(_name) { \ .name = #_name, \ .id = S5M8767_##_name, \ @@ -466,6 +451,14 @@ static struct regulator_ops s5m8767_ops = { .owner = THIS_MODULE, \ } +#define s5m8767_regulator_buck78_desc(_name) { \ + .name = #_name, \ + .id = S5M8767_##_name, \ + .ops = &s5m8767_buck78_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ +} + static struct regulator_desc regulators[] = { s5m8767_regulator_desc(LDO1), s5m8767_regulator_desc(LDO2), @@ -501,8 +494,8 @@ static struct regulator_desc regulators[] = { s5m8767_regulator_desc(BUCK4), s5m8767_regulator_desc(BUCK5), s5m8767_regulator_desc(BUCK6), - s5m8767_regulator_desc(BUCK7), - s5m8767_regulator_desc(BUCK8), + s5m8767_regulator_buck78_desc(BUCK7), + s5m8767_regulator_buck78_desc(BUCK8), s5m8767_regulator_desc(BUCK9), }; @@ -751,9 +744,12 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev) int id = pdata->regulators[i].id; desc = reg_voltage_map[id]; - if (desc) + if (desc) { regulators[id].n_voltages = (desc->max - desc->min) / desc->step + 1; + regulators[id].min_uV = desc->min; + regulators[id].uV_step = desc->step; + } config.dev = s5m8767->dev; config.init_data = pdata->regulators[i].initdata; -- cgit v1.2.3 From 9e303f228c24d529bf479196d290eedc2a04cd5e Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 16 Jun 2012 22:01:25 +0300 Subject: gpio/omap: fix irq loss while in idle with debounce on It seems that currently GPIO module is not working correctly during idle when debounce is enabled - the system almost never responds to button presses (observed on OMAP3530 ES2.1 and OMAP3630 ES1.2 pandora boards). Even though wakeups are probably working, it seems that the GPIO module itself is unable to detect input events and generate interrupts. OMAP35x TRM also states that: "If the debounce clock is inactive, the debounce cell gates all input signals and thus cannot be used." So whenever we are disabling debounce clocks (for PM or other reasons), be sure the module's debounce feature is disabled too. Cc: Kevin Hilman Signed-off-by: Grazvydas Ignotas Signed-off-by: Kevin Hilman --- drivers/gpio/gpio-omap.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index c4ed1722734c..ff213e70fa5a 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -174,12 +174,22 @@ static inline void _gpio_dbck_enable(struct gpio_bank *bank) if (bank->dbck_enable_mask && !bank->dbck_enabled) { clk_enable(bank->dbck); bank->dbck_enabled = true; + + __raw_writel(bank->dbck_enable_mask, + bank->base + bank->regs->debounce_en); } } static inline void _gpio_dbck_disable(struct gpio_bank *bank) { if (bank->dbck_enable_mask && bank->dbck_enabled) { + /* + * Disable debounce before cutting it's clock. If debounce is + * enabled but the clock is not, GPIO module seems to be unable + * to detect events and generate interrupts at least on OMAP3. + */ + __raw_writel(0, bank->base + bank->regs->debounce_en); + clk_disable(bank->dbck); bank->dbck_enabled = false; } -- cgit v1.2.3 From f63d7dabd5da9ef41f28f6d69b29bc084db0ca5a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 25 Jun 2012 18:01:12 -0500 Subject: rtlwifi: rtl8192cu: New USB IDs The latest Realtek driver for the RTL8188CU and RTL8192CU chips adds three new USB IDs. Reported-by: Xose Vazquez Perez Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index d228358e6a40..9970c2b1b199 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -301,9 +301,11 @@ static struct usb_device_id rtl8192c_usb_ids[] = { {RTL_USB_DEVICE(0x07b8, 0x8188, rtl92cu_hal_cfg)}, /*Abocom - Abocom*/ {RTL_USB_DEVICE(0x07b8, 0x8189, rtl92cu_hal_cfg)}, /*Funai - Abocom*/ {RTL_USB_DEVICE(0x0846, 0x9041, rtl92cu_hal_cfg)}, /*NetGear WNA1000M*/ + {RTL_USB_DEVICE(0x0bda, 0x5088, rtl92cu_hal_cfg)}, /*Thinkware-CC&C*/ {RTL_USB_DEVICE(0x0df6, 0x0052, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ {RTL_USB_DEVICE(0x0df6, 0x005c, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ {RTL_USB_DEVICE(0x0eb0, 0x9071, rtl92cu_hal_cfg)}, /*NO Brand - Etop*/ + {RTL_USB_DEVICE(0x4856, 0x0091, rtl92cu_hal_cfg)}, /*NetweeN - Feixun*/ /* HP - Lite-On ,8188CUS Slim Combo */ {RTL_USB_DEVICE(0x103c, 0x1629, rtl92cu_hal_cfg)}, {RTL_USB_DEVICE(0x13d3, 0x3357, rtl92cu_hal_cfg)}, /* AzureWave */ @@ -346,6 +348,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { {RTL_USB_DEVICE(0x07b8, 0x8178, rtl92cu_hal_cfg)}, /*Funai -Abocom*/ {RTL_USB_DEVICE(0x0846, 0x9021, rtl92cu_hal_cfg)}, /*Netgear-Sercomm*/ {RTL_USB_DEVICE(0x0b05, 0x17ab, rtl92cu_hal_cfg)}, /*ASUS-Edimax*/ + {RTL_USB_DEVICE(0x0bda, 0x8186, rtl92cu_hal_cfg)}, /*Realtek 92CE-VAU*/ {RTL_USB_DEVICE(0x0df6, 0x0061, rtl92cu_hal_cfg)}, /*Sitecom-Edimax*/ {RTL_USB_DEVICE(0x0e66, 0x0019, rtl92cu_hal_cfg)}, /*Hawking-Edimax*/ {RTL_USB_DEVICE(0x2001, 0x3307, rtl92cu_hal_cfg)}, /*D-Link-Cameo*/ -- cgit v1.2.3 From 7508b657967cf664b5aa0f6367d05016e7e3bc2a Mon Sep 17 00:00:00 2001 From: Panayiotis Karabassis Date: Tue, 26 Jun 2012 23:37:17 +0300 Subject: ath9k: enable serialize_regmode for non-PCIE AR9287 https://bugzilla.kernel.org/show_bug.cgi?id=42903 Based on the work of Signed-off-by: Panayiotis Karabassis Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 1c68e564f503..995ca8e1302e 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -622,7 +622,7 @@ static int __ath9k_hw_init(struct ath_hw *ah) if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) { if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI || - ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) && + ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) && !ah->is_pciexpress)) { ah->config.serialize_regmode = SER_REG_MODE_ON; -- cgit v1.2.3 From 6bb51c70cabaadddc54a6454844eceba91a56083 Mon Sep 17 00:00:00 2001 From: Tom Hughes Date: Wed, 27 Jun 2012 18:21:15 +0100 Subject: ath9k: fix panic caused by returning a descriptor we have queued for reuse Commit 3a2923e83c introduced a bug when a corrupt descriptor is encountered - although the following descriptor is discarded and returned to the queue for reuse the associated frame is also returned for processing. This leads to a panic: BUG: unable to handle kernel NULL pointer dereference at 000000000000003a IP: [] ath_rx_tasklet+0x165/0x1b00 [ath9k] Call Trace: [] ? map_single+0x60/0x60 [] ? ath9k_ioread32+0x34/0x90 [ath9k] [] athk9k_tasklet+0xdc/0x160 [ath9k] [] tasklet_action+0x63/0xd0 [] __do_softirq+0xc0/0x1e0 [] ? native_sched_clock+0x13/0x80 [] call_softirq+0x1c/0x30 [] do_softirq+0x75/0xb0 [] irq_exit+0xb5/0xc0 [] do_IRQ+0x63/0xe0 [] common_interrupt+0x6a/0x6a [] ? intel_idle+0xea/0x150 [] ? intel_idle+0xcb/0x150 [] cpuidle_enter+0x19/0x20 [] cpuidle_idle_call+0xa9/0x240 [] cpu_idle+0xaf/0x120 [] rest_init+0x72/0x74 [] start_kernel+0x3b7/0x3c4 [] ? repair_env_string+0x5e/0x5e [] x86_64_start_reservations+0x131/0x135 [] x86_64_start_kernel+0x100/0x10f Making sure bf is cleared to NULL in this case restores the old behaviour. Signed-off-by: Tom Hughes Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/recv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 599667ababee..0735aeb3b26c 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -695,9 +695,9 @@ static bool ath_edma_get_buffers(struct ath_softc *sc, __skb_unlink(skb, &rx_edma->rx_fifo); list_add_tail(&bf->list, &sc->rx.rxbuf); ath_rx_edma_buf_link(sc, qtype); - } else { - bf = NULL; } + + bf = NULL; } *dest = bf; -- cgit v1.2.3 From c9015b24b262bc7ea56cfd5d78983a73fb5ebd7d Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Wed, 27 Jun 2012 12:46:24 -0700 Subject: mwifiex: fix memory leak associated with IE manamgement Free ap_custom_ie before return from function. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/ie.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c index ceb82cd749cc..383820a52beb 100644 --- a/drivers/net/wireless/mwifiex/ie.c +++ b/drivers/net/wireless/mwifiex/ie.c @@ -213,6 +213,7 @@ mwifiex_update_uap_custom_ie(struct mwifiex_private *priv, /* save assoc resp ie index after auto-indexing */ *assoc_idx = *((u16 *)pos); + kfree(ap_custom_ie); return ret; } -- cgit v1.2.3 From d9b8706843a501034d09bea63ca6723a2ed02b11 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 21 Jun 2012 23:11:18 +0000 Subject: net: qmi_wwan: fix Oops while disconnecting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit usbnet_disconnect() will set intfdata to NULL before calling the minidriver unbind function. The cdc_wdm subdriver cannot know that it is disconnecting until the qmi_wwan unbind function has called its disconnect function. This means that we must be able to support the cdc_wdm subdriver operating normally while usbnet_disconnect() is running, and in particular that intfdata may be NULL. The only place this matters is in qmi_wwan_cdc_wdm_manage_power which is called from cdc_wdm. Simply testing for NULL intfdata there is sufficient to allow it to continue working at all times. Fixes this Oops where a cdc-wdm device was closed while the USB device was disconnecting, causing wdm_release to call qmi_wwan_cdc_wdm_manage_power after intfdata was set to NULL by usbnet_disconnect: [41819.087460] BUG: unable to handle kernel NULL pointer dereference at 00000080 [41819.087815] IP: [] qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] [41819.088028] *pdpt = 000000000314f001 *pde = 0000000000000000 [41819.088028] Oops: 0002 [#1] SMP [41819.088028] Modules linked in: qmi_wwan option usb_wwan usbserial usbnet cdc_wdm nls_iso8859_1 nls_cp437 vfat fat usb_storage bnep rfcomm bluetooth parport_pc ppdev binfmt_misc iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables x_tables dm_crypt uvcvideo snd_hda_codec_realtek snd_hda_intel videobuf2_core snd_hda_codec joydev videodev videobuf2_vmalloc hid_multitouch snd_hwdep arc4 videobuf2_memops snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event ath9k mac80211 snd_seq ath9k_common ath9k_hw ath snd_timer snd_seq_device sparse_keymap dm_multipath scsi_dh coretemp mac_hid snd soundcore cfg80211 snd_page_alloc psmouse serio_raw microcode lp parport dm_mirror dm_region_hash dm_log usbhid hid i915 drm_kms_helper drm r8169 i2c_algo_bit wmi video [last unloaded: qmi_wwan] [41819.088028] [41819.088028] Pid: 23292, comm: qmicli Not tainted 3.4.0-5-generic #11-Ubuntu GIGABYTE T1005/T1005 [41819.088028] EIP: 0060:[] EFLAGS: 00010246 CPU: 1 [41819.088028] EIP is at qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] [41819.088028] EAX: 00000000 EBX: 00000000 ECX: 000000c3 EDX: 00000000 [41819.088028] ESI: c3b27658 EDI: 00000000 EBP: c298bea4 ESP: c298be98 [41819.088028] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [41819.088028] CR0: 8005003b CR2: 00000080 CR3: 3605e000 CR4: 000007f0 [41819.088028] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [41819.088028] DR6: ffff0ff0 DR7: 00000400 [41819.088028] Process qmicli (pid: 23292, ti=c298a000 task=f343b280 task.ti=c298a000) [41819.088028] Stack: [41819.088028] 00000000 c3b27658 e2a80d00 c298beb0 f864051a c3b27600 c298bec0 f9027099 [41819.088028] c2fd6000 00000008 c298bef0 c1147f96 00000001 00000000 00000000 f4e54790 [41819.088028] ecf43a00 ecf43a00 c2fd6008 c2fd6000 ebbd7600 ffffffb9 c298bf08 c1144474 [41819.088028] Call Trace: [41819.088028] [] qmi_wwan_cdc_wdm_manage_power+0x1a/0x20 [qmi_wwan] [41819.088028] [] wdm_release+0x69/0x70 [cdc_wdm] [41819.088028] [] fput+0xe6/0x210 [41819.088028] [] filp_close+0x54/0x80 [41819.088028] [] put_files_struct+0x75/0xc0 [41819.088028] [] exit_files+0x46/0x60 [41819.088028] [] do_exit+0x141/0x780 [41819.088028] [] ? wake_up_state+0xf/0x20 [41819.088028] [] ? signal_wake_up+0x28/0x40 [41819.088028] [] ? zap_other_threads+0x6b/0x80 [41819.088028] [] do_group_exit+0x34/0xa0 [41819.088028] [] sys_exit_group+0x18/0x20 [41819.088028] [] sysenter_do_call+0x12/0x28 [41819.088028] Code: 04 83 e7 01 c1 e7 03 0f b6 42 18 83 e0 f7 09 f8 88 42 18 8b 43 04 e8 48 9a dd c8 89 f0 8b 5d f4 8b 75 f8 8b 7d fc 89 ec 5d c3 90 ff 88 80 00 00 00 0f 94 c0 84 c0 75 b7 31 f6 8b 5d f4 89 f0 [41819.088028] EIP: [] qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] SS:ESP 0068:c298be98 [41819.088028] CR2: 0000000000000080 [41819.149492] ---[ end trace 0944479ff8257f55 ]--- Reported-by: Marius Bjørnstad Kotsbak Cc: # v3.4 Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3767a1225860..b01960fcfbc9 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -197,6 +197,10 @@ err: static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on) { struct usbnet *dev = usb_get_intfdata(intf); + + /* can be called while disconnecting */ + if (!dev) + return 0; return qmi_wwan_manage_power(dev, on); } -- cgit v1.2.3 From 9740e001932f59ee007d13ee3f39bb1b61086651 Mon Sep 17 00:00:00 2001 From: Claudiu Manoil Date: Thu, 28 Jun 2012 04:40:53 +0000 Subject: gianfar: Fix RXICr/TXICr programming for multi-queue mode The correct behavior is to program the interrupt coalescing regs (RXICr/TXICr) in accordance with the Rx/Tx Q's "rx/txcoalescing" flag. That is, if the coalescing flag is 0 for a given Rx/Tx queue then the corresponding coalescing register should be cleared. This behavior is correctly implemented for the single-queue mode (SQ_SG_MODE), but not for the multi-queue mode (MQ_MG_MODE). This fixes the later case. Signed-off-by: Claudiu Manoil Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/gianfar.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 0741aded9eb0..f2db8fca46a1 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -1804,18 +1804,16 @@ void gfar_configure_coalescing(struct gfar_private *priv, if (priv->mode == MQ_MG_MODE) { baddr = ®s->txic0; for_each_set_bit(i, &tx_mask, priv->num_tx_queues) { - if (likely(priv->tx_queue[i]->txcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->tx_queue[i]->txcoalescing)) gfar_write(baddr + i, priv->tx_queue[i]->txic); - } } baddr = ®s->rxic0; for_each_set_bit(i, &rx_mask, priv->num_rx_queues) { - if (likely(priv->rx_queue[i]->rxcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->rx_queue[i]->rxcoalescing)) gfar_write(baddr + i, priv->rx_queue[i]->rxic); - } } } } -- cgit v1.2.3 From 61c91dd4a58b21a783e37208f4d02e3cb4b637c4 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Thu, 28 Jun 2012 16:46:27 -0700 Subject: Input: wacom - fix retrieving touch_max bug rep_data is not an array anymore, so taking it's address when passing to wacom_get_report() is wrong. Signed-off-by: Ping Cheng Tested-by: Rafi Rubin Reviewed-by: Jason Gerecke Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index b3a8bd3514b2..23a933da75cd 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -213,7 +213,7 @@ static void wacom_retrieve_report_data(struct usb_interface *intf, rep_data[0] = 12; result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, - rep_data[0], &rep_data, 2, + rep_data[0], rep_data, 2, WAC_MSG_RETRIES); if (result >= 0 && rep_data[1] > 2) -- cgit v1.2.3 From 1cecc5cc0658e128bcad0b29edb96f286066571d Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Thu, 28 Jun 2012 16:47:30 -0700 Subject: Input: wacom - don't retrieve touch_max when it is predefined Some models, such as 0xE6, report more fingers than we process. Reported-by: Jonathan Nieder Signed-off-by: Ping Cheng Tested-by: Nils Kanning Tested-by: Rafi Rubin Reviewed-by: Jason Gerecke Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 23a933da75cd..b145841bdbe7 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -398,7 +398,9 @@ static int wacom_parse_hid(struct usb_interface *intf, break; case HID_USAGE_CONTACTMAX: - wacom_retrieve_report_data(intf, features); + /* leave touch_max as is if predefined */ + if (!features->touch_max) + wacom_retrieve_report_data(intf, features); i++; break; } -- cgit v1.2.3 From 76fbc247b9aebc30f6d2c8ec1f69edcb68eaa328 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 28 Jun 2012 06:12:32 +0000 Subject: davinci_cpdma: include linux/module.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a number of warnings such as: CC drivers/net/ethernet/ti/davinci_cpdma.o drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: data definition has no type or storage class drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: parameter names (without types) in function declaration Signed-off-by: Daniel Mack Cc: Vaibhav Hiremath Cc: David S. Miller Cc: Christian Riesch Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/davinci_cpdma.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index d614c374ed9d..3b5c4571b55e 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From c21b328ea8c7c71cd2daf50557db440bbaa7ef55 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 28 Jun 2012 17:53:07 -0400 Subject: drm/radeon: fix VM page table setup on SI Cayman and trinity allow for variable sized VM page tables, but SI requires that all page tables be the same size. The current code assumes variablely sized VM page tables so SI may end up with part of each page table overlapping with other memory which could end up being interpreted by the VM hw as garbage. Change the code to better accomodate SI. Allocate enough space for at least 2 full page tables and always set last_pfn to max_pfn on SI so each VM is backed by a full page table. This limits us to only 2 VMs active at any given time on SI. This will be rectified and the code can be reunified once we move to two level page tables. Signed-off-by: Alex Deucher Reviewed-by: Jerome Glisse Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_gart.c | 13 +++++++++++-- drivers/gpu/drm/radeon/si.c | 4 ++-- 2 files changed, 13 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 59d44937dd9f..84b648a7ddd8 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -289,8 +289,9 @@ int radeon_vm_manager_init(struct radeon_device *rdev) rdev->vm_manager.enabled = false; /* mark first vm as always in use, it's the system one */ + /* allocate enough for 2 full VM pts */ r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager, - rdev->vm_manager.max_pfn * 8, + rdev->vm_manager.max_pfn * 8 * 2, RADEON_GEM_DOMAIN_VRAM); if (r) { dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n", @@ -633,7 +634,15 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm) mutex_init(&vm->mutex); INIT_LIST_HEAD(&vm->list); INIT_LIST_HEAD(&vm->va); - vm->last_pfn = 0; + /* SI requires equal sized PTs for all VMs, so always set + * last_pfn to max_pfn. cayman allows variable sized + * pts so we can grow then as needed. Once we switch + * to two level pts we can unify this again. + */ + if (rdev->family >= CHIP_TAHITI) + vm->last_pfn = rdev->vm_manager.max_pfn; + else + vm->last_pfn = 0; /* map the ib pool buffer at 0 in virtual address space, set * read only */ diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index c7b61f16ecfd..0b0279291a73 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2365,12 +2365,12 @@ int si_pcie_gart_enable(struct radeon_device *rdev) WREG32(0x15DC, 0); /* empty context1-15 */ - /* FIXME start with 1G, once using 2 level pt switch to full + /* FIXME start with 4G, once using 2 level pt switch to full * vm size space */ /* set vm size, must be a multiple of 4 */ WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); - WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, (1 << 30) / RADEON_GPU_PAGE_SIZE); + WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn); for (i = 1; i < 16; i++) { if (i < 8) WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2), -- cgit v1.2.3 From 0e90b49ca4b891f085b57559a3071a4feefb496c Mon Sep 17 00:00:00 2001 From: Mitch A Williams Date: Sat, 30 Jun 2012 00:23:19 +0000 Subject: igbvf: fix divide by zero Using ethtool -C ethX rx-usecs 0 crashes with a divide by zero. Refactor this function to fix this issue and make it more clear what the intent of each conditional is. Add comment regarding using a setting of zero. CC: stable [3.3+] CC: David Ahern Signed-off-by: Mitch Williams Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igbvf/ethtool.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c index 8ce67064b9c5..90eef07943f4 100644 --- a/drivers/net/ethernet/intel/igbvf/ethtool.c +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c @@ -357,21 +357,28 @@ static int igbvf_set_coalesce(struct net_device *netdev, struct igbvf_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; - if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) || - ((ec->rx_coalesce_usecs > 3) && - (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) || - (ec->rx_coalesce_usecs == 2)) - return -EINVAL; - - /* convert to rate of irq's per second */ - if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) { + if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) && + (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) { + adapter->current_itr = ec->rx_coalesce_usecs << 2; + adapter->requested_itr = 1000000000 / + (adapter->current_itr * 256); + } else if ((ec->rx_coalesce_usecs == 3) || + (ec->rx_coalesce_usecs == 2)) { adapter->current_itr = IGBVF_START_ITR; adapter->requested_itr = ec->rx_coalesce_usecs; - } else { - adapter->current_itr = ec->rx_coalesce_usecs << 2; + } else if (ec->rx_coalesce_usecs == 0) { + /* + * The user's desire is to turn off interrupt throttling + * altogether, but due to HW limitations, we can't do that. + * Instead we set a very small value in EITR, which would + * allow ~967k interrupts per second, but allow the adapter's + * internal clocking to still function properly. + */ + adapter->current_itr = 4; adapter->requested_itr = 1000000000 / (adapter->current_itr * 256); - } + } else + return -EINVAL; writel(adapter->current_itr, hw->hw_addr + adapter->rx_ring->itr_register); -- cgit v1.2.3 From 2e1706f234f86ff71056ef69683d734fbf7e9e40 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Sat, 30 Jun 2012 20:02:42 +0000 Subject: e1000e: remove use of IP payload checksum Currently only used when packet split mode is enabled with jumbo frames, IP payload checksum (for fragmented UDP packets) is mutually exclusive with receive hashing offload since the hardware uses the same space in the receive descriptor for the hardware-provided packet checksum and the RSS hash, respectively. Users currently must disable jumbos when receive hashing offload is enabled, or vice versa, because of this incompatibility. Since testing has shown that IP payload checksum does not provide any real benefit, just remove it so that there is no longer a choice between jumbos or receive hashing offload but not both as done in other Intel GbE drivers (e.g. e1000, igb). Also, add a missing check for IP checksum error reported by the hardware; let the stack verify the checksum when this happens. CC: stable [3.4] Signed-off-by: Bruce Allan Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/e1000e/defines.h | 1 + drivers/net/ethernet/intel/e1000e/netdev.c | 75 ++++++----------------------- 2 files changed, 15 insertions(+), 61 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h index 351a4097b2ba..76edbc1be33b 100644 --- a/drivers/net/ethernet/intel/e1000e/defines.h +++ b/drivers/net/ethernet/intel/e1000e/defines.h @@ -103,6 +103,7 @@ #define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ #define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ #define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ #define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ #define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 31d37a2b5ba8..623e30b9964d 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -496,7 +496,7 @@ static void e1000_receive_skb(struct e1000_adapter *adapter, * @sk_buff: socket buffer with received data **/ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, - __le16 csum, struct sk_buff *skb) + struct sk_buff *skb) { u16 status = (u16)status_err; u8 errors = (u8)(status_err >> 24); @@ -511,8 +511,8 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, if (status & E1000_RXD_STAT_IXSM) return; - /* TCP/UDP checksum error bit is set */ - if (errors & E1000_RXD_ERR_TCPE) { + /* TCP/UDP checksum error bit or IP checksum error bit is set */ + if (errors & (E1000_RXD_ERR_TCPE | E1000_RXD_ERR_IPE)) { /* let the stack verify checksum errors */ adapter->hw_csum_err++; return; @@ -523,19 +523,7 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, return; /* It must be a TCP or UDP packet with a valid checksum */ - if (status & E1000_RXD_STAT_TCPCS) { - /* TCP checksum is good */ - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else { - /* - * IP fragment with UDP payload - * Hardware complements the payload checksum, so we undo it - * and then put the value in host order for further stack use. - */ - __sum16 sum = (__force __sum16)swab16((__force u16)csum); - skb->csum = csum_unfold(~sum); - skb->ip_summed = CHECKSUM_COMPLETE; - } + skb->ip_summed = CHECKSUM_UNNECESSARY; adapter->hw_csum_good++; } @@ -954,8 +942,7 @@ static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring, int *work_done, skb_put(skb, length); /* Receive Checksum Offload */ - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -1341,8 +1328,7 @@ copydone: total_rx_bytes += skb->len; total_rx_packets++; - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -1512,9 +1498,8 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_ring *rx_ring, int *work_done, } } - /* Receive Checksum Offload XXX recompute due to CRC strip? */ - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -3098,19 +3083,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) /* Enable Receive Checksum Offload for TCP and UDP */ rxcsum = er32(RXCSUM); - if (adapter->netdev->features & NETIF_F_RXCSUM) { + if (adapter->netdev->features & NETIF_F_RXCSUM) rxcsum |= E1000_RXCSUM_TUOFL; - - /* - * IPv4 payload checksum for UDP fragments must be - * used in conjunction with packet-split. - */ - if (adapter->rx_ps_pages) - rxcsum |= E1000_RXCSUM_IPPCSE; - } else { + else rxcsum &= ~E1000_RXCSUM_TUOFL; - /* no need to clear IPPCSE as it defaults to 0 */ - } ew32(RXCSUM, rxcsum); if (adapter->hw.mac.type == e1000_pch2lan) { @@ -5241,22 +5217,10 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; /* Jumbo frame support */ - if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) { - if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { - e_err("Jumbo Frames not supported.\n"); - return -EINVAL; - } - - /* - * IP payload checksum (enabled with jumbos/packet-split when - * Rx checksum is enabled) and generation of RSS hash is - * mutually exclusive in the hardware. - */ - if ((netdev->features & NETIF_F_RXCSUM) && - (netdev->features & NETIF_F_RXHASH)) { - e_err("Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled. Disable one of the receive offload features before enabling jumbos.\n"); - return -EINVAL; - } + if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) && + !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { + e_err("Jumbo Frames not supported.\n"); + return -EINVAL; } /* Supported frame sizes */ @@ -6030,17 +5994,6 @@ static int e1000_set_features(struct net_device *netdev, NETIF_F_RXALL))) return 0; - /* - * IP payload checksum (enabled with jumbos/packet-split when Rx - * checksum is enabled) and generation of RSS hash is mutually - * exclusive in the hardware. - */ - if (adapter->rx_ps_pages && - (features & NETIF_F_RXCSUM) && (features & NETIF_F_RXHASH)) { - e_err("Enabling both receive checksum offload and receive hashing is not possible with jumbo frames. Disable jumbos or enable only one of the receive offload features.\n"); - return -EINVAL; - } - if (changed & NETIF_F_RXFCS) { if (features & NETIF_F_RXFCS) { adapter->flags2 &= ~FLAG2_CRC_STRIPPING; -- cgit v1.2.3 From d172f319c1094ef22d2a00f43e8a7da4dd02c8f3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 29 Jun 2012 09:45:16 +0800 Subject: regulator: tps65217: Convert LDO1 to use regulator_list_voltage_table Convert tps65217_pmic_ldo1_ops to use regulator_list_voltage_table. We have n_voltages and volt_table settings in regulator_desc, so we don't need the table and table_len fields in struct tps_info. Thus remove them from struct tps_info. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 47 ++++++++++++++++------------------ include/linux/mfd/tps65217.h | 4 --- 2 files changed, 22 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index f5fa05b5bea4..3a2b839276fe 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -26,7 +26,7 @@ #include #include -#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em) \ +#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t) \ { \ .name = _name, \ .id = _id, \ @@ -38,20 +38,19 @@ .vsel_mask = _vm, \ .enable_reg = TPS65217_REG_ENABLE, \ .enable_mask = _em, \ + .volt_table = _t, \ } \ -#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n)\ +#define TPS65217_INFO(_nm, _min, _max, _f1, _f2) \ { \ .name = _nm, \ .min_uV = _min, \ .max_uV = _max, \ .vsel_to_uv = _f1, \ .uv_to_vsel = _f2, \ - .table = _t, \ - .table_len = _n, \ } -static const int LDO1_VSEL_table[] = { +static const unsigned int LDO1_VSEL_table[] = { 1000000, 1100000, 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1800000, 2500000, 2750000, @@ -128,19 +127,18 @@ static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel) static struct tps_info tps65217_pmic_regs[] = { TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64), + tps65217_uv_to_vsel1), TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64), + tps65217_uv_to_vsel1), TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64), - TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table, - 16), + tps65217_uv_to_vsel1), + TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL), TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1, NULL, 64), + tps65217_uv_to_vsel1), TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2, NULL, 32), + tps65217_uv_to_vsel2), TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2, NULL, 32), + tps65217_uv_to_vsel2), }; static int tps65217_pmic_enable(struct regulator_dev *dev) @@ -230,12 +228,9 @@ static int tps65217_pmic_list_voltage(struct regulator_dev *dev, if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; - if (selector >= tps->info[rid]->table_len) + if (selector >= dev->desc->n_voltages) return -EINVAL; - if (tps->info[rid]->table) - return tps->info[rid]->table[selector]; - return tps->info[rid]->vsel_to_uv(selector); } @@ -257,31 +252,33 @@ static struct regulator_ops tps65217_pmic_ldo1_ops = { .disable = tps65217_pmic_disable, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = tps65217_pmic_set_voltage_sel, - .list_voltage = tps65217_pmic_list_voltage, + .list_voltage = regulator_list_voltage_table, }; static const struct regulator_desc regulators[] = { TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC1_EN), + TPS65217_ENABLE_DC1_EN, NULL), TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC2_EN), + TPS65217_ENABLE_DC2_EN, NULL), TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC3_EN), + TPS65217_ENABLE_DC3_EN, NULL), TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK, - TPS65217_ENABLE_LDO1_EN), + TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table), TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64, TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK, - TPS65217_ENABLE_LDO2_EN), + TPS65217_ENABLE_LDO2_EN, NULL), TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, - TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN), + TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN, + NULL), TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, - TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN), + TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN, + NULL), }; static int __devinit tps65217_regulator_probe(struct platform_device *pdev) diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index 4e035a41a9b0..3a80da103f3f 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -227,8 +227,6 @@ struct tps65217_board { * @max_uV: minimum micro volts * @vsel_to_uv: Function pointer to get voltage from selector * @uv_to_vsel: Function pointer to get selector from voltage - * @table: Table for non-uniform voltage step-size - * @table_len: Length of the voltage table * * This data is used to check the regualtor voltage limits while setting. */ @@ -238,8 +236,6 @@ struct tps_info { int max_uV; int (*vsel_to_uv)(unsigned int vsel); int (*uv_to_vsel)(int uV, unsigned int *vsel); - const int *table; - unsigned int table_len; }; /** -- cgit v1.2.3 From f141822b15635daa94610c5527806fa315f59f4d Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 29 Jun 2012 10:33:15 -0600 Subject: regulator: fixed: support deferred probe for DT GPIOs of_get_named_gpio() needs the driver hosting the GPIO that the DT property references to have been probed. Detect this specific failure, and defer the probe of the whole regulator until this API can complete. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown --- drivers/regulator/fixed.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index 8bda3654ae51..b8c3a910502a 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -61,11 +61,11 @@ of_get_fixed_voltage_config(struct device *dev) config = devm_kzalloc(dev, sizeof(struct fixed_voltage_config), GFP_KERNEL); if (!config) - return NULL; + return ERR_PTR(-ENOMEM); config->init_data = of_get_regulator_init_data(dev, dev->of_node); if (!config->init_data) - return NULL; + return ERR_PTR(-EINVAL); init_data = config->init_data; init_data->constraints.apply_uV = 0; @@ -76,13 +76,26 @@ of_get_fixed_voltage_config(struct device *dev) } else { dev_err(dev, "Fixed regulator specified with variable voltages\n"); - return NULL; + return ERR_PTR(-EINVAL); } if (init_data->constraints.boot_on) config->enabled_at_boot = true; config->gpio = of_get_named_gpio(np, "gpio", 0); + /* + * of_get_named_gpio() currently returns ENODEV rather than + * EPROBE_DEFER. This code attempts to be compatible with both + * for now; the ENODEV check can be removed once the API is fixed. + * of_get_named_gpio() doesn't differentiate between a missing + * property (which would be fine here, since the GPIO is optional) + * and some other error. Patches have been posted for both issues. + * Once they are check in, we should replace this with: + * if (config->gpio < 0 && config->gpio != -ENOENT) + */ + if ((config->gpio == -ENODEV) || (config->gpio == -EPROBE_DEFER)) + return ERR_PTR(-EPROBE_DEFER); + delay = of_get_property(np, "startup-delay-us", NULL); if (delay) config->startup_delay = be32_to_cpu(*delay); @@ -172,10 +185,13 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) struct regulator_config cfg = { }; int ret; - if (pdev->dev.of_node) + if (pdev->dev.of_node) { config = of_get_fixed_voltage_config(&pdev->dev); - else + if (IS_ERR(config)) + return PTR_ERR(config); + } else { config = pdev->dev.platform_data; + } if (!config) return -ENOMEM; -- cgit v1.2.3 From 8f53dc724a83a0082184fa27df80c25c7df47340 Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Wed, 27 Jun 2012 12:54:01 +0300 Subject: iommu/tegra: smmu: Fix unsleepable memory allocation allo_pdir() is called in smmu_iommu_domain_init() with spin_lock held. memory allocations in it have to be atomic/unsleepable. Signed-off-by: Hiroshi DOYU Reported-by: Chris Wright Acked-by: Chris Wright Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/tegra-smmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index ecd679043d77..3f3d09d560ea 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -550,13 +550,13 @@ static int alloc_pdir(struct smmu_as *as) return 0; as->pte_count = devm_kzalloc(smmu->dev, - sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_KERNEL); + sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_ATOMIC); if (!as->pte_count) { dev_err(smmu->dev, "failed to allocate smmu_device PTE cunters\n"); return -ENOMEM; } - as->pdir_page = alloc_page(GFP_KERNEL | __GFP_DMA); + as->pdir_page = alloc_page(GFP_ATOMIC | __GFP_DMA); if (!as->pdir_page) { dev_err(smmu->dev, "failed to allocate smmu_device page directory\n"); -- cgit v1.2.3 From 3775d4818d72081e2afa2aed2442a2b9ecfc5eab Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 27 Jun 2012 12:09:18 +0300 Subject: iommu/amd: fix type bug in flush code write_file_bool() modifies 32 bits of data, so "amd_iommu_unmap_flush" needs to be 32 bits as well or we'll corrupt memory. Fortunately it looks like the data is aligned with a gap after the declaration so this is harmless in production. Signed-off-by: Dan Carpenter Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 +- drivers/iommu/amd_iommu_init.c | 2 +- drivers/iommu/amd_iommu_types.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index dfe7d37c82c5..625626391f2d 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -404,7 +404,7 @@ static void amd_iommu_stats_init(void) return; de_fflush = debugfs_create_bool("fullflush", 0444, stats_dir, - (u32 *)&amd_iommu_unmap_flush); + &amd_iommu_unmap_flush); amd_iommu_stats_add(&compl_wait); amd_iommu_stats_add(&cnt_map_single); diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index c04ddca7f12f..a33612f3206f 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -129,7 +129,7 @@ u16 amd_iommu_last_bdf; /* largest PCI device id we have to handle */ LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings we find in ACPI */ -bool amd_iommu_unmap_flush; /* if true, flush on every unmap */ +u32 amd_iommu_unmap_flush; /* if true, flush on every unmap */ LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the system */ diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index 24355559a2ad..c1b1d489817e 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -652,7 +652,7 @@ extern unsigned long *amd_iommu_pd_alloc_bitmap; * If true, the addresses will be flushed on unmap time, not when * they are reused */ -extern bool amd_iommu_unmap_flush; +extern u32 amd_iommu_unmap_flush; /* Smallest number of PASIDs supported by any IOMMU in the system */ extern u32 amd_iommu_max_pasids; -- cgit v1.2.3 From cac87fd34ebd79a954321f78acf38abcc69e1308 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 22:30:15 +0800 Subject: regulator: tps6524x: Convert to regulator_list_voltage_table() This patch adds fixed_5000000_voltage table for fixed voltage, so we can convert regulator_ops to regulator_list_voltage_table. We can differentiate fixed voltage by checking rdev->desc->n_voltages == 1, thus remove the FIXED_VOLTAGE flag usage. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6524x-regulator.c | 52 +++++++++++++--------------------- 1 file changed, 19 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 1b299aacf22f..48e37bd95a27 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -111,7 +111,6 @@ #define N_REGULATORS (N_DCDC + N_LDO + N_SWITCH) #define FIXED_ILIMSEL BIT(0) -#define FIXED_VOLTAGE BIT(1) #define CMD_READ(reg) ((reg) << 6) #define CMD_WRITE(reg) (BIT(5) | (reg) << 6) @@ -129,8 +128,7 @@ struct field { struct supply_info { const char *name; int n_voltages; - const int *voltages; - int fixed_voltage; + const unsigned int *voltages; int n_ilimsels; const int *ilimsels; int fixed_ilimsel; @@ -307,7 +305,7 @@ static int write_field(struct tps6524x *hw, const struct field *field, val << field->shift); } -static const int dcdc1_voltages[] = { +static const unsigned int dcdc1_voltages[] = { 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, @@ -318,7 +316,7 @@ static const int dcdc1_voltages[] = { 1500000, 1525000, 1550000, 1575000, }; -static const int dcdc2_voltages[] = { +static const unsigned int dcdc2_voltages[] = { 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, @@ -329,7 +327,7 @@ static const int dcdc2_voltages[] = { 2800000, 2850000, 2900000, 2950000, }; -static const int dcdc3_voltages[] = { +static const unsigned int dcdc3_voltages[] = { 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3050000, 3100000, @@ -337,20 +335,24 @@ static const int dcdc3_voltages[] = { 3400000, 3450000, 3500000, 3550000, 3600000, }; -static const int ldo1_voltages[] = { +static const unsigned int ldo1_voltages[] = { 4300000, 4350000, 4400000, 4450000, 4500000, 4550000, 4600000, 4650000, 4700000, 4750000, 4800000, 4850000, 4900000, 4950000, 5000000, 5050000, }; -static const int ldo2_voltages[] = { +static const unsigned int ldo2_voltages[] = { 1100000, 1150000, 1200000, 1250000, 1300000, 1700000, 1750000, 1800000, 1850000, 1900000, 3150000, 3200000, 3250000, 3300000, 3350000, 3400000, }; +static const unsigned int fixed_5000000_voltage[] = { + 5000000 +}; + static const int ldo_ilimsel[] = { 400000, 1500000 }; @@ -424,8 +426,8 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "USB", - .flags = FIXED_VOLTAGE, - .fixed_voltage = 5000000, + .n_voltages = ARRAY_SIZE(fixed_5000000_voltage), + .voltages = fixed_5000000_voltage, .n_ilimsels = ARRAY_SIZE(usb_ilimsel), .ilimsels = usb_ilimsel, .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK, @@ -435,29 +437,15 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "LCD", - .flags = FIXED_VOLTAGE | FIXED_ILIMSEL, - .fixed_voltage = 5000000, + .n_voltages = ARRAY_SIZE(fixed_5000000_voltage), + .voltages = fixed_5000000_voltage, + .flags = FIXED_ILIMSEL, .fixed_ilimsel = 400000, .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK, BLOCK_LCD_SHIFT), }, }; -static int list_voltage(struct regulator_dev *rdev, unsigned selector) -{ - const struct supply_info *info; - struct tps6524x *hw; - - hw = rdev_get_drvdata(rdev); - info = &supply_info[rdev_get_id(rdev)]; - - if (info->flags & FIXED_VOLTAGE) - return selector ? -EINVAL : info->fixed_voltage; - - return ((selector < info->n_voltages) ? - info->voltages[selector] : -EINVAL); -} - static int set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { const struct supply_info *info; @@ -466,7 +454,7 @@ static int set_voltage_sel(struct regulator_dev *rdev, unsigned selector) hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_VOLTAGE) + if (rdev->desc->n_voltages == 1) return -EINVAL; return write_field(hw, &info->voltage, selector); @@ -481,7 +469,7 @@ static int get_voltage_sel(struct regulator_dev *rdev) hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_VOLTAGE) + if (rdev->desc->n_voltages == 1) return 0; ret = read_field(hw, &info->voltage); @@ -577,7 +565,7 @@ static struct regulator_ops regulator_ops = { .disable = disable_supply, .get_voltage_sel = get_voltage_sel, .set_voltage_sel = set_voltage_sel, - .list_voltage = list_voltage, + .list_voltage = regulator_list_voltage_table, .set_current_limit = set_current_limit, .get_current_limit = get_current_limit, }; @@ -629,13 +617,11 @@ static int __devinit pmic_probe(struct spi_device *spi) hw->desc[i].name = info->name; hw->desc[i].id = i; hw->desc[i].n_voltages = info->n_voltages; + hw->desc[i].volt_table = info->voltages; hw->desc[i].ops = ®ulator_ops; hw->desc[i].type = REGULATOR_VOLTAGE; hw->desc[i].owner = THIS_MODULE; - if (info->flags & FIXED_VOLTAGE) - hw->desc[i].n_voltages = 1; - config.dev = dev; config.init_data = init_data; config.driver_data = hw; -- cgit v1.2.3 From 1e12dfc9681fed46fbc9fffc6aba9613908c1213 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 22:32:08 +0800 Subject: regulator: tps6524x: Convert fixed ilimsel to table based This patch refactors the code to get rid of the fixed_ilimsel and FIXED_ILIMSEL flag usage, and convert all the fixed ilimsel to table based (with one entry in the table). We can differentiate fixed ilimsel by checking info->n_ilimsels == 1, thus FIXED_ILIMSEL flag can be removed. This change makes the logic of the code simpler as all the ilimsels are table based now. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6524x-regulator.c | 44 ++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 48e37bd95a27..947ece933d90 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -110,8 +110,6 @@ #define N_SWITCH 2 #define N_REGULATORS (N_DCDC + N_LDO + N_SWITCH) -#define FIXED_ILIMSEL BIT(0) - #define CMD_READ(reg) ((reg) << 6) #define CMD_WRITE(reg) (BIT(5) | (reg) << 6) #define STAT_CLK BIT(3) @@ -130,9 +128,7 @@ struct supply_info { int n_voltages; const unsigned int *voltages; int n_ilimsels; - const int *ilimsels; - int fixed_ilimsel; - int flags; + const unsigned int *ilimsels; struct field enable, voltage, ilimsel; }; @@ -353,24 +349,36 @@ static const unsigned int fixed_5000000_voltage[] = { 5000000 }; -static const int ldo_ilimsel[] = { +static const unsigned int ldo_ilimsel[] = { 400000, 1500000 }; -static const int usb_ilimsel[] = { +static const unsigned int usb_ilimsel[] = { 200000, 400000, 800000, 1000000 }; +static const unsigned int fixed_2400000_ilimsel[] = { + 2400000 +}; + +static const unsigned int fixed_1200000_ilimsel[] = { + 1200000 +}; + +static const unsigned int fixed_400000_ilimsel[] = { + 400000 +}; + #define __MK_FIELD(_reg, _mask, _shift) \ { .reg = (_reg), .mask = (_mask), .shift = (_shift), } static const struct supply_info supply_info[N_REGULATORS] = { { .name = "DCDC1", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc1_voltages), .voltages = dcdc1_voltages, - .fixed_ilimsel = 2400000, + .n_ilimsels = ARRAY_SIZE(fixed_2400000_ilimsel), + .ilimsels = fixed_2400000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC1_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -378,10 +386,10 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "DCDC2", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc2_voltages), .voltages = dcdc2_voltages, - .fixed_ilimsel = 1200000, + .n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel), + .ilimsels = fixed_1200000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC2_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -389,10 +397,10 @@ static const struct supply_info supply_info[N_REGULATORS] = { }, { .name = "DCDC3", - .flags = FIXED_ILIMSEL, .n_voltages = ARRAY_SIZE(dcdc3_voltages), .voltages = dcdc3_voltages, - .fixed_ilimsel = 1200000, + .n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel), + .ilimsels = fixed_1200000_ilimsel, .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK, DCDCDCDC3_EN_SHIFT), .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK, @@ -439,8 +447,8 @@ static const struct supply_info supply_info[N_REGULATORS] = { .name = "LCD", .n_voltages = ARRAY_SIZE(fixed_5000000_voltage), .voltages = fixed_5000000_voltage, - .flags = FIXED_ILIMSEL, - .fixed_ilimsel = 400000, + .n_ilimsels = ARRAY_SIZE(fixed_400000_ilimsel), + .ilimsels = fixed_400000_ilimsel, .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK, BLOCK_LCD_SHIFT), }, @@ -491,7 +499,7 @@ static int set_current_limit(struct regulator_dev *rdev, int min_uA, hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_ILIMSEL) + if (info->n_ilimsels == 1) return -EINVAL; for (i = 0; i < info->n_ilimsels; i++) @@ -514,8 +522,8 @@ static int get_current_limit(struct regulator_dev *rdev) hw = rdev_get_drvdata(rdev); info = &supply_info[rdev_get_id(rdev)]; - if (info->flags & FIXED_ILIMSEL) - return info->fixed_ilimsel; + if (info->n_ilimsels == 1) + return info->ilimsels[0]; ret = read_field(hw, &info->ilimsel); if (ret < 0) -- cgit v1.2.3 From 1a5d39d0644fa01e659ee42b5ec47abbd7db3afb Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 2 Jul 2012 18:54:17 +0100 Subject: regulator: tps65217: invalid if check This permits the setting of bogus values because the invalidity check is itself invalid. Reported-by: dcb314@hotmail.com Signed-off-by: Alan Cox Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 3a2b839276fe..0a3df5b7c904 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -78,7 +78,7 @@ static int tps65217_vsel_to_uv1(unsigned int vsel) static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel) { - if ((uV < 0) && (uV > 3300000)) + if (uV < 0 || uV > 3300000) return -EINVAL; if (uV <= 1500000) @@ -112,7 +112,7 @@ static int tps65217_vsel_to_uv2(unsigned int vsel) static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel) { - if ((uV < 0) && (uV > 3300000)) + if (uV < 0 || uV > 3300000) return -EINVAL; if (uV <= 1900000) -- cgit v1.2.3 From 0072f0a82ce78ceb634f00a57d80c9b421b061d4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Jun 2012 22:55:50 +0800 Subject: regulator: tps62360: Convert to regulator_set_voltage_time_sel() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps62360-regulator.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c index bcea4e1eea1e..103bb62aaef8 100644 --- a/drivers/regulator/tps62360-regulator.c +++ b/drivers/regulator/tps62360-regulator.c @@ -74,7 +74,6 @@ struct tps62360_chip { int lru_index[4]; int curr_vset_vsel[4]; int curr_vset_id; - int change_uv_per_us; }; /* @@ -173,16 +172,6 @@ static int tps62360_dcdc_set_voltage_sel(struct regulator_dev *dev, return 0; } -static int tps62360_set_voltage_time_sel(struct regulator_dev *rdev, - unsigned int old_selector, unsigned int new_selector) -{ - struct tps62360_chip *tps = rdev_get_drvdata(rdev); - - return DIV_ROUND_UP(abs(new_selector - old_selector) * - rdev->desc->uV_step, - tps->change_uv_per_us); -} - static int tps62360_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct tps62360_chip *tps = rdev_get_drvdata(rdev); @@ -249,7 +238,7 @@ static struct regulator_ops tps62360_dcdc_ops = { .set_voltage_sel = tps62360_dcdc_set_voltage_sel, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, - .set_voltage_time_sel = tps62360_set_voltage_time_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_mode = tps62360_set_mode, .get_mode = tps62360_get_mode, }; @@ -292,7 +281,7 @@ static int __devinit tps62360_init_dcdc(struct tps62360_chip *tps, ramp_ctrl = (ramp_ctrl >> 4) & 0x7; /* ramp mV/us = 32/(2^ramp_ctrl) */ - tps->change_uv_per_us = DIV_ROUND_UP(32000, BIT(ramp_ctrl)); + tps->desc.ramp_delay = DIV_ROUND_UP(32000, BIT(ramp_ctrl)); return ret; } -- cgit v1.2.3 From 8bea2bd37df08aaa599aa361a9f8b836ba98e554 Mon Sep 17 00:00:00 2001 From: Stanislaw Ledwon Date: Mon, 18 Jun 2012 15:20:00 +0200 Subject: usb: Add support for root hub port status CAS The host controller port status register supports CAS (Cold Attach Status) bit. This bit could be set when USB3.0 device is connected when system is in Sx state. When the system wakes to S0 this port status with CAS bit is reported and this port can't be used by any device. When CAS bit is set the port should be reset by warm reset. This was not supported by xhci driver. The issue was found when pendrive was connected to suspended platform. The link state of "Compliance Mode" was reported together with CAS bit. This link state was also not supported by xhci and core/hub.c. The CAS bit is defined only for xhci root hub port and it is not supported on regular hubs. The link status is used to force warm reset on port. Make the USB core issue a warm reset when port is in ether the 'inactive' or 'compliance mode'. Change the xHCI driver to report 'compliance mode' when the CAS is set. This force warm reset on the root hub port. This patch should be backported to stable kernels as old as 3.2, that contain the commit 10d674a82e553cb8a1f41027bb3c3e309b3f6804 "USB: When hot reset for USB3 fails, try warm reset." Signed-off-by: Stanislaw Ledwon Signed-off-by: Sarah Sharp Acked-by: Andiry Xu Cc: stable@vger.kernel.org --- drivers/usb/core/hub.c | 18 ++++++++++-------- drivers/usb/host/xhci-hub.c | 44 ++++++++++++++++++++++++++++++++++++++------ drivers/usb/host/xhci.h | 6 +++++- 3 files changed, 53 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 25a7422ee657..8fb484984c86 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2324,12 +2324,16 @@ static unsigned hub_is_wusb(struct usb_hub *hub) static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm); -/* Is a USB 3.0 port in the Inactive state? */ -static bool hub_port_inactive(struct usb_hub *hub, u16 portstatus) +/* Is a USB 3.0 port in the Inactive or Complinance Mode state? + * Port worm reset is required to recover + */ +static bool hub_port_warm_reset_required(struct usb_hub *hub, u16 portstatus) { return hub_is_superspeed(hub->hdev) && - (portstatus & USB_PORT_STAT_LINK_STATE) == - USB_SS_PORT_LS_SS_INACTIVE; + (((portstatus & USB_PORT_STAT_LINK_STATE) == + USB_SS_PORT_LS_SS_INACTIVE) || + ((portstatus & USB_PORT_STAT_LINK_STATE) == + USB_SS_PORT_LS_COMP_MOD)) ; } static int hub_port_wait_reset(struct usb_hub *hub, int port1, @@ -2365,7 +2369,7 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, * * See https://bugzilla.kernel.org/show_bug.cgi?id=41752 */ - if (hub_port_inactive(hub, portstatus)) { + if (hub_port_warm_reset_required(hub, portstatus)) { int ret; if ((portchange & USB_PORT_STAT_C_CONNECTION)) @@ -4408,9 +4412,7 @@ static void hub_events(void) /* Warm reset a USB3 protocol port if it's in * SS.Inactive state. */ - if (hub_is_superspeed(hub->hdev) && - (portstatus & USB_PORT_STAT_LINK_STATE) - == USB_SS_PORT_LS_SS_INACTIVE) { + if (hub_port_warm_reset_required(hub, portstatus)) { dev_dbg(hub_dev, "warm reset port %d\n", i); hub_port_reset(hub, i, NULL, HUB_BH_RESET_TIME, true); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 2732ef660c5c..7b01094d7993 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -462,6 +462,42 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, } } +/* Updates Link Status for super Speed port */ +static void xhci_hub_report_link_state(u32 *status, u32 status_reg) +{ + u32 pls = status_reg & PORT_PLS_MASK; + + /* resume state is a xHCI internal state. + * Do not report it to usb core. + */ + if (pls == XDEV_RESUME) + return; + + /* When the CAS bit is set then warm reset + * should be performed on port + */ + if (status_reg & PORT_CAS) { + /* The CAS bit can be set while the port is + * in any link state. + * Only roothubs have CAS bit, so we + * pretend to be in compliance mode + * unless we're already in compliance + * or the inactive state. + */ + if (pls != USB_SS_PORT_LS_COMP_MOD && + pls != USB_SS_PORT_LS_SS_INACTIVE) { + pls = USB_SS_PORT_LS_COMP_MOD; + } + /* Return also connection bit - + * hub state machine resets port + * when this bit is set. + */ + pls |= USB_PORT_STAT_CONNECTION; + } + /* update status field */ + *status |= pls; +} + int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { @@ -606,13 +642,9 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, else status |= USB_PORT_STAT_POWER; } - /* Port Link State */ + /* Update Port Link State for super speed ports*/ if (hcd->speed == HCD_USB3) { - /* resume state is a xHCI internal state. - * Do not report it to usb core. - */ - if ((temp & PORT_PLS_MASK) != XDEV_RESUME) - status |= (temp & PORT_PLS_MASK); + xhci_hub_report_link_state(&status, temp); } if (bus_state->port_c_suspend & (1 << wIndex)) status |= 1 << USB_PORT_FEAT_C_SUSPEND; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index de3d6e3e57be..55c0785810c9 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -341,7 +341,11 @@ struct xhci_op_regs { #define PORT_PLC (1 << 22) /* port configure error change - port failed to configure its link partner */ #define PORT_CEC (1 << 23) -/* bit 24 reserved */ +/* Cold Attach Status - xHC can set this bit to report device attached during + * Sx state. Warm port reset should be perfomed to clear this bit and move port + * to connected state. + */ +#define PORT_CAS (1 << 24) /* wake on connect (enable) */ #define PORT_WKCONN_E (1 << 25) /* wake on disconnect (enable) */ -- cgit v1.2.3 From 0d9f78a92ef5e97d9fe51d9215ebe22f6f0d289d Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 21 Jun 2012 16:28:30 -0700 Subject: xhci: Fix hang on back-to-back Set TR Deq Ptr commands. The Microsoft LifeChat 3000 USB headset was causing a very reproducible hang whenever it was plugged in. At first, I thought the host controller was producing bad transfer events, because the log was filled with errors like: xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD However, it turned out to be an xHCI driver bug in the ring expansion patches. The bug is triggered When there are two ring segments, and a TD that ends just before a link TRB, like so: ______________ _____________ | | ---> | setup TRB B | ______________ | _____________ | | | | data TRB B | ______________ | _____________ | setup TRB A | <-- deq | | data TRB B | ______________ | _____________ | data TRB A | | | | <-- enq, deq'' ______________ | _____________ | status TRB A | | | | ______________ | _____________ | link TRB |--------------- | link TRB | _____________ <--- deq' _____________ TD A (the first control transfer) stalls on the data phase. That halts the ring. The xHCI driver moves the hardware dequeue pointer to the first TRB after the stalled transfer, which happens to be the link TRB. Once the Set TR dequeue pointer command completes, the function update_ring_for_set_deq_completion runs. That function is supposed to update the xHCI driver's dequeue pointer to match the internal hardware dequeue pointer. On the first call this would work fine, and the software dequeue pointer would move to deq'. However, if the transfer immediately after that stalled (TD B in this case), another Set TR Dequeue command would be issued. That would move the hardware dequeue pointer to deq''. Once that command completed, update_ring_for_set_deq_completion would run again. The original code would unconditionally increment the software dequeue pointer, which moved the pointer off the ring segment into la-la-land. The while loop would happy increment the dequeue pointer (possibly wrapping it) until it matched the hardware pointer value. The while loop would also access all the memory in between the first ring segment and the second ring segment to determine if it was a link TRB. This could cause general protection faults, although it was unlikely because the ring segments came from a DMA pool, and would often have consecutive memory addresses. If nothing in that space looked like a link TRB, the deq_seg pointer for the ring would remain on the first segment. Thus, the deq_seg and the software dequeue pointer would get out of sync. When the next transfer event came in after the stalled transfer, the xHCI driver code would attempt to convert the software dequeue pointer into a DMA address in order to compare the DMA address for the completed transfer. Since the deq_seg and the dequeue pointer were out of sync, xhci_trb_virt_to_dma would return NULL. The transfer event would get ignored, the transfer would eventually timeout, and we would mistakenly convert the finished transfer to no-op TRBs. Some kernel driver (maybe xHCI?) would then get stuck in an infinite loop in interrupt context, and the whole machine would hang. This patch should be backported to kernels as old as 3.4, that contain the commit b008df60c6369ba0290fa7daa177375407a12e07 "xHCI: count free TRBs on transfer ring" Signed-off-by: Sarah Sharp Cc: Andiry Xu Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-ring.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 23b4aefd1036..8275645889da 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -885,6 +885,17 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci, num_trbs_free_temp = ep_ring->num_trbs_free; dequeue_temp = ep_ring->dequeue; + /* If we get two back-to-back stalls, and the first stalled transfer + * ends just before a link TRB, the dequeue pointer will be left on + * the link TRB by the code in the while loop. So we have to update + * the dequeue pointer one segment further, or we'll jump off + * the segment into la-la-land. + */ + if (last_trb(xhci, ep_ring, ep_ring->deq_seg, ep_ring->dequeue)) { + ep_ring->deq_seg = ep_ring->deq_seg->next; + ep_ring->dequeue = ep_ring->deq_seg->trbs; + } + while (ep_ring->dequeue != dev->eps[ep_index].queued_deq_ptr) { /* We have more usable TRBs */ ep_ring->num_trbs_free++; -- cgit v1.2.3 From fc448a18ae6219af9a73257b1fbcd009efab4a81 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 10:37:30 +1000 Subject: md/raid10: Don't try to recovery unmatched (and unused) chunks. If a RAID10 has an odd number of chunks - as might happen when there are an odd number of devices - the last chunk has no pair and so is not mirrored. We don't store data there, but when recovering the last device in an array we retry to recover that last chunk from a non-existent location. This results in an error, and the recovery aborts. When we get to that last chunk we should just stop - there is nothing more to do anyway. This bug has been present since the introduction of RAID10, so the patch is appropriate for any -stable kernel. Cc: stable@vger.kernel.org Reported-by: Christian Balzer Tested-by: Christian Balzer Signed-off-by: NeilBrown --- drivers/md/raid10.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 99ae6068e456..bcf6ea8acc9f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2890,6 +2890,12 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, /* want to reconstruct this device */ rb2 = r10_bio; sect = raid10_find_virt(conf, sector_nr, i); + if (sect >= mddev->resync_max_sectors) { + /* last stripe is not complete - don't + * try to recover this sector. + */ + continue; + } /* Unless we are doing a full sync, or a replacement * we only need to recover the block if it is set in * the bitmap -- cgit v1.2.3 From 5cfb22a1f83e4f04c0a4df89b60053a077222e2b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 11:46:53 +1000 Subject: md/raid5: prefer replacing failed devices over want-replacement devices. If a RAID5 has both a failed device and a device marked as 'WantReplacement', then we should preferentially replace the failed device. However the current code replaces whichever is found first. So split into 2 loops, check fail failed/missing first, and only check for WantReplacement if nothing is failed or missing. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index d26767246d26..95fcbbf3d6c9 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5465,10 +5465,9 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) if (rdev->saved_raid_disk >= 0 && rdev->saved_raid_disk >= first && conf->disks[rdev->saved_raid_disk].rdev == NULL) - disk = rdev->saved_raid_disk; - else - disk = first; - for ( ; disk <= last ; disk++) { + first = rdev->saved_raid_disk; + + for (disk = first; disk <= last; disk++) { p = conf->disks + disk; if (p->rdev == NULL) { clear_bit(In_sync, &rdev->flags); @@ -5477,8 +5476,11 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) if (rdev->saved_raid_disk != disk) conf->fullsync = 1; rcu_assign_pointer(p->rdev, rdev); - break; + goto out; } + } + for (disk = first; disk <= last; disk++) { + p = conf->disks + disk; if (test_bit(WantReplacement, &p->rdev->flags) && p->replacement == NULL) { clear_bit(In_sync, &rdev->flags); @@ -5490,6 +5492,7 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) break; } } +out: print_raid5_conf(conf); return err; } -- cgit v1.2.3 From 6c0544e255dd6582a9899572e120fb55d9f672a4 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 12 Jun 2012 08:31:10 +0800 Subject: md/raid5: Do not add data_offset before call to is_badblock In chunk_aligned_read() we are adding data_offset before calling is_badblock. But is_badblock also adds data_offset, so that is bad. So move the addition of data_offset to after the call to is_badblock. This bug was introduced by commit 31c176ecdf3563140e639 md/raid5: avoid reading from known bad blocks. which first appeared in 3.0. So that patch is suitable for any -stable kernel from 3.0.y onwards. However it will need minor revision for most of those (as the comment didn't appear until recently). Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 95fcbbf3d6c9..9567a9c83a1f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3881,8 +3881,6 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) raid_bio->bi_next = (void*)rdev; align_bi->bi_bdev = rdev->bdev; align_bi->bi_flags &= ~(1 << BIO_SEG_VALID); - /* No reshape active, so we can trust rdev->data_offset */ - align_bi->bi_sector += rdev->data_offset; if (!bio_fits_rdev(align_bi) || is_badblock(rdev, align_bi->bi_sector, align_bi->bi_size>>9, @@ -3893,6 +3891,9 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) return 0; } + /* No reshape active, so we can trust rdev->data_offset */ + align_bi->bi_sector += rdev->data_offset; + spin_lock_irq(&conf->device_lock); wait_event_lock_irq(conf->wait_for_stripe, conf->quiesce == 0, -- cgit v1.2.3 From 1850753d2e6d9ca7856581ca5d3cf09521e6a5d7 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 12:11:54 +1000 Subject: md/raid5: In ops_run_io, inc nr_pending before calling md_wait_for_blocked_rdev In ops_run_io(), the call to md_wait_for_blocked_rdev will decrement nr_pending so we lose the reference we hold on the rdev. So atomic_inc it first to maintain the reference. This bug was introduced by commit 73e92e51b7969ef5477d md/raid5. Don't write to known bad block on doubtful devices. which appeared in 3.0, so patch is suitable for stable kernels since then. Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 9567a9c83a1f..befadb41a11f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -606,6 +606,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) * a chance*/ md_check_recovery(conf->mddev); } + /* + * Because md_wait_for_blocked_rdev + * will dec nr_pending, we must + * increment it first. + */ + atomic_inc(&rdev->nr_pending); md_wait_for_blocked_rdev(rdev, conf->mddev); } else { /* Acknowledged bad block - skip the write */ -- cgit v1.2.3 From 7c2c57c9a98bf5961e438a376486f95346f6b0c5 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 12:12:26 +1000 Subject: md:Add blk_plug in sync_thread. Add blk_plug in sync_thread will increase the performance of sync. Because sync_thread did not blk_plug,so when raid sync, the bio merge not well. Testing environment: SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller. OS:Linux xxx 3.5.0-rc2+ #340 SMP Tue Jun 12 09:00:25 CST 2012 x86_64 x86_64 x86_64 GNU/Linux. RAID5: four ST31000524NS disk. Without blk_plug:recovery speed about 63M/Sec; Add blk_plug:recovery speed about 120M/Sec. Using blktrace: blktrace -d /dev/sdb -w 60 -o -|blkparse -i - without blk_plug: Total (8,16): Reads Queued: 309811, 1239MiB Writes Queued: 0, 0KiB Read Dispatches: 283583, 1189MiB Write Dispatches: 0, 0KiB Reads Requeued: 0 Writes Requeued: 0 Reads Completed: 273351, 1149MiB Writes Completed: 0, 0KiB Read Merges: 23533, 94132KiB Write Merges: 0, 0KiB IO unplugs: 0 Timer unplugs: 0 add blk_plug: Total (8,16): Reads Queued: 428697, 1714MiB Writes Queued: 0, 0KiB Read Dispatches: 3954, 1714MiB Write Dispatches: 0, 0KiB Reads Requeued: 0 Writes Requeued: 0 Reads Completed: 3956, 1715MiB Writes Completed: 0, 0KiB Read Merges: 424743, 1698MiB Write Merges: 0, 0KiB IO unplugs: 0 Timer unplugs: 3384 The ratio of merge will be markedly increased. Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 1c2f9048e1ae..973aa8459e98 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7298,6 +7298,7 @@ void md_do_sync(struct mddev *mddev) int skipped = 0; struct md_rdev *rdev; char *desc; + struct blk_plug plug; /* just incase thread restarts... */ if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) @@ -7447,6 +7448,7 @@ void md_do_sync(struct mddev *mddev) } mddev->curr_resync_completed = j; + blk_start_plug(&plug); while (j < max_sectors) { sector_t sectors; @@ -7552,6 +7554,7 @@ void md_do_sync(struct mddev *mddev) * this also signals 'finished resyncing' to md_stop */ out: + blk_finish_plug(&plug); wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active)); /* tell personality that we are finished */ -- cgit v1.2.3 From 5f066c632fcfd2a33f2eb7077c15c630e9f5ea5b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 12:13:29 +1000 Subject: md/raid5: fix refcount problem when blocked_rdev is set. commit 43220aa0f22cd3ce5b30246d50ccd696d119edea md/raid5: fix a hang on device failure. fixed a hang, but introduced a refcounting in-balance so that if the presence of bad-blocks ever caused an rdev to be 'blocked' we would increment the refcount on the rdev and never decrement it. So added the needed rdev_dec_pending when md_wait_for_blocked_rdev is not called. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index befadb41a11f..62b6b3a83abf 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3588,8 +3588,18 @@ static void handle_stripe(struct stripe_head *sh) finish: /* wait for this device to become unblocked */ - if (conf->mddev->external && unlikely(s.blocked_rdev)) - md_wait_for_blocked_rdev(s.blocked_rdev, conf->mddev); + if (unlikely(s.blocked_rdev)) { + if (conf->mddev->external) + md_wait_for_blocked_rdev(s.blocked_rdev, + conf->mddev); + else + /* Internal metadata will immediately + * be written by raid5d, so we don't + * need to wait here. + */ + rdev_dec_pending(s.blocked_rdev, + conf->mddev); + } if (s.handle_bad_blocks) for (i = disks; i--; ) { -- cgit v1.2.3 From 055d3747dbf00ce85c6872ecca4d466638e80c22 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:55:33 +1000 Subject: md/raid10: fix failure when trying to repair a read error. commit 58c54fcca3bac5bf9290cfed31c76e4c4bfbabaf md/raid10: handle further errors during fix_read_error better. in 3.1 added "r10_sync_page_io" which takes an IO size in sectors. But we were passing the IO size in bytes!!! This resulting in bio_add_page failing, and empty request being sent down, and a consequent BUG_ON in scsi_lib. [fix missing space in error message at same time] This fix is suitable for 3.1.y and later. Cc: stable@vger.kernel.org Reported-by: Christian Balzer Signed-off-by: NeilBrown --- drivers/md/raid10.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index bcf6ea8acc9f..ae73e29298b2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2310,7 +2310,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 if (r10_sync_page_io(rdev, r10_bio->devs[sl].addr + sect, - s<<9, conf->tmppage, WRITE) + s, conf->tmppage, WRITE) == 0) { /* Well, this device is dead */ printk(KERN_NOTICE @@ -2349,7 +2349,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 switch (r10_sync_page_io(rdev, r10_bio->devs[sl].addr + sect, - s<<9, conf->tmppage, + s, conf->tmppage, READ)) { case 0: /* Well, this device is dead */ @@ -2512,7 +2512,7 @@ read_more: slot = r10_bio->read_slot; printk_ratelimited( KERN_ERR - "md/raid10:%s: %s: redirecting" + "md/raid10:%s: %s: redirecting " "sector %llu to another mirror\n", mdname(mddev), bdevname(rdev->bdev, b), -- cgit v1.2.3 From 0232605d987d8230b254aa139805bbb56a7ca30c Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:56:52 +1000 Subject: md: make 'name' arg to md_register_thread non-optional. Having the 'name' arg optional and defaulting to the current personality name is no necessary and leads to errors, as when changing the level of an array we can end up using the name of the old level instead of the new one. So make it non-optional and always explicitly pass the name of the level that the array will be. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/md.c | 2 +- drivers/md/multipath.c | 3 ++- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 2 +- drivers/md/raid5.c | 4 +++- 5 files changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 973aa8459e98..c601c4be77c7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6751,7 +6751,7 @@ struct md_thread *md_register_thread(void (*run) (struct mddev *), struct mddev thread->tsk = kthread_run(md_thread, thread, "%s_%s", mdname(thread->mddev), - name ?: mddev->pers->name); + name); if (IS_ERR(thread->tsk)) { kfree(thread); return NULL; diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 9339e67fcc79..61a1833ebaf3 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -474,7 +474,8 @@ static int multipath_run (struct mddev *mddev) } { - mddev->thread = md_register_thread(multipathd, mddev, NULL); + mddev->thread = md_register_thread(multipathd, mddev, + "multipath"); if (!mddev->thread) { printk(KERN_ERR "multipath: couldn't allocate thread" " for %s\n", mdname(mddev)); diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index a9c7981ddd24..39b2a8aa3b23 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2621,7 +2621,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) goto abort; } err = -ENOMEM; - conf->thread = md_register_thread(raid1d, mddev, NULL); + conf->thread = md_register_thread(raid1d, mddev, "raid1"); if (!conf->thread) { printk(KERN_ERR "md/raid1:%s: couldn't allocate thread\n", diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ae73e29298b2..edc1088a1320 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3427,7 +3427,7 @@ static struct r10conf *setup_conf(struct mddev *mddev) spin_lock_init(&conf->resync_lock); init_waitqueue_head(&conf->wait_barrier); - conf->thread = md_register_thread(raid10d, mddev, NULL); + conf->thread = md_register_thread(raid10d, mddev, "raid10"); if (!conf->thread) goto out; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 62b6b3a83abf..a5135e595866 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4840,6 +4840,7 @@ static struct r5conf *setup_conf(struct mddev *mddev) int raid_disk, memory, max_disks; struct md_rdev *rdev; struct disk_info *disk; + char pers_name[6]; if (mddev->new_level != 5 && mddev->new_level != 4 @@ -4963,7 +4964,8 @@ static struct r5conf *setup_conf(struct mddev *mddev) printk(KERN_INFO "md/raid:%s: allocated %dkB\n", mdname(mddev), memory); - conf->thread = md_register_thread(raid5d, mddev, NULL); + sprintf(pers_name, "raid%d", mddev->new_level); + conf->thread = md_register_thread(raid5d, mddev, pers_name); if (!conf->thread) { printk(KERN_ERR "md/raid:%s: couldn't allocate thread.\n", -- cgit v1.2.3 From 2e8ac30312973dd20e6807365349ecb1c7e0ea45 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 15:57:02 +1000 Subject: md/raid456: When read error cannot be recovered, record bad block We may not be able to fix a bad block if: - the array is degraded - the over-write fails. In these cases we currently eject the device, but we should record a bad block if possible. Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a5135e595866..51169ecd7787 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1743,6 +1743,7 @@ static void raid5_end_read_request(struct bio * bi, int error) } else { const char *bdn = bdevname(rdev->bdev, b); int retry = 0; + int set_bad = 0; clear_bit(R5_UPTODATE, &sh->dev[i].flags); atomic_inc(&rdev->read_errors); @@ -1754,7 +1755,8 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (conf->mddev->degraded >= conf->max_degraded) + else if (conf->mddev->degraded >= conf->max_degraded) { + set_bad = 1; printk_ratelimited( KERN_WARNING "md/raid:%s: read error not correctable " @@ -1762,8 +1764,9 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) + } else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) { /* Oh, no!!! */ + set_bad = 1; printk_ratelimited( KERN_WARNING "md/raid:%s: read error NOT corrected!! " @@ -1771,7 +1774,7 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (atomic_read(&rdev->read_errors) + } else if (atomic_read(&rdev->read_errors) > conf->max_nr_stripes) printk(KERN_WARNING "md/raid:%s: Too many read errors, failing device %s.\n", @@ -1783,7 +1786,11 @@ static void raid5_end_read_request(struct bio * bi, int error) else { clear_bit(R5_ReadError, &sh->dev[i].flags); clear_bit(R5_ReWrite, &sh->dev[i].flags); - md_error(conf->mddev, rdev); + if (!(set_bad + && test_bit(In_sync, &rdev->flags) + && rdev_set_badblocks( + rdev, sh->sector, STRIPE_SECTORS, 0))) + md_error(conf->mddev, rdev); } } rdev_dec_pending(rdev, conf->mddev); -- cgit v1.2.3 From fab363b5ff502d1b39ddcfec04271f5858d9f26e Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Tue, 3 Jul 2012 15:57:19 +1000 Subject: raid5: delayed stripe fix There isn't locking setting STRIPE_DELAYED and STRIPE_PREREAD_ACTIVE bits, but the two bits have relationship. A delayed stripe can be moved to hold list only when preread active stripe count is below IO_THRESHOLD. If a stripe has both the bits set, such stripe will be in delayed list and preread count not 0, which will make such stripe never leave delayed list. Signed-off-by: Shaohua Li Signed-off-by: NeilBrown --- drivers/md/raid5.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 51169ecd7787..7245a9df35a9 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -196,12 +196,14 @@ static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) BUG_ON(!list_empty(&sh->lru)); BUG_ON(atomic_read(&conf->active_stripes)==0); if (test_bit(STRIPE_HANDLE, &sh->state)) { - if (test_bit(STRIPE_DELAYED, &sh->state)) + if (test_bit(STRIPE_DELAYED, &sh->state) && + !test_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) list_add_tail(&sh->lru, &conf->delayed_list); else if (test_bit(STRIPE_BIT_DELAY, &sh->state) && sh->bm_seq - conf->seq_write > 0) list_add_tail(&sh->lru, &conf->bitmap_list); else { + clear_bit(STRIPE_DELAYED, &sh->state); clear_bit(STRIPE_BIT_DELAY, &sh->state); list_add_tail(&sh->lru, &conf->handle_list); } -- cgit v1.2.3 From 32644afd8975d19174bcb9ba34687c32dd810a09 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:58:42 +1000 Subject: md/raid1: fix bug in read_balance introduced by hot-replace When we added hot_replace we doubled the number of devices that could be in a RAID1 array. So we doubled how far read_balance would search. Unfortunately we didn't double the point at which it looped back to the beginning - so it effectively loops over all non-replacement disks twice. This doesn't cause bad behaviour, but it pointless and means we never read from replacement devices. Signed-off-by: NeilBrown --- drivers/md/raid1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 39b2a8aa3b23..34b4665cb0b6 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -517,8 +517,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect int bad_sectors; int disk = start_disk + i; - if (disk >= conf->raid_disks) - disk -= conf->raid_disks; + if (disk >= conf->raid_disks * 2) + disk -= conf->raid_disks * 2; rdev = rcu_dereference(conf->mirrors[disk].rdev); if (r1_bio->bios[disk] == IO_BLOCKED -- cgit v1.2.3 From f456309106e9657645c81bce1a6bb3230393564e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:59:06 +1000 Subject: md: support re-add of recovering devices. We currently only allow a device to be re-added if it appear to be in-sync. This is overly restrictive as it may be desirable to re-add a device that is in the middle of recovery. So remove the test for "InSync" - the test on rdev->raid_disk is sufficient to ensure that the re-add will succeed. Reported-by: Alexander Lyakas Tested-by: Alexander Lyakas Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index c601c4be77c7..a4c219e3c859 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5784,8 +5784,7 @@ static int add_new_disk(struct mddev * mddev, mdu_disk_info_t *info) super_types[mddev->major_version]. validate_super(mddev, rdev); if ((info->state & (1<flags) || - rdev->raid_disk != info->raid_disk)) { + rdev->raid_disk != info->raid_disk) { /* This was a hot-add request, but events doesn't * match, so reject it. */ -- cgit v1.2.3 From b357f04a67c2aeee828b240863cd3f21d6cb3179 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 17:45:31 +1000 Subject: md: fix up plugging (again). The value returned by "mddev_check_plug" is only valid until the next 'schedule' as that will unplug things. This could happen at any call to mempool_alloc. So just calling mddev_check_plug at the start doesn't really make sense. So call it just before, or just after, queuing things for the thread. As the action that happens at unplug is to wake the thread, this makes lots of sense. If we cannot add a plug (which requires a small GFP_ATOMIC alloc) we wake thread immediately. RAID5 is a bit different. Requests are queued for the thread and the thread is woken by release_stripe. So we don't need to wake the thread on failure. However the thread doesn't perform certain actions when there is any active plug, so it is important to install a plug before waking the thread. So for RAID5 we install the plug *before* queuing the request and waking the thread. Without this patch it is possible for raid1 or raid10 to queue a request without then waking the thread, resulting in the array locking up. Also change raid10 to only flush_pending_write when there are not active plugs, just like raid1. This patch is suitable for 3.0 or later. I plan to submit it to -stable, but I'll like to let it spend a few weeks in mainline first to be sure it is completely safe. Signed-off-by: NeilBrown --- drivers/md/raid1.c | 7 ++----- drivers/md/raid10.c | 12 ++++++------ drivers/md/raid5.c | 6 +----- 3 files changed, 9 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 34b4665cb0b6..8c2754f835ef 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -883,7 +883,6 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA)); struct md_rdev *blocked_rdev; - int plugged; int first_clone; int sectors_handled; int max_sectors; @@ -1034,7 +1033,6 @@ read_again: * the bad blocks. Each set of writes gets it's own r1bio * with a set of bios attached. */ - plugged = mddev_check_plugged(mddev); disks = conf->raid_disks * 2; retry_write: @@ -1191,6 +1189,8 @@ read_again: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev)) + md_wakeup_thread(mddev->thread); } /* Mustn't call r1_bio_write_done before this next test, * as it could result in the bio being freed. @@ -1213,9 +1213,6 @@ read_again: /* In case raid1d snuck in to freeze_array */ wake_up(&conf->wait_barrier); - - if (do_sync || !bitmap || !plugged) - md_wakeup_thread(mddev->thread); } static void status(struct seq_file *seq, struct mddev *mddev) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index edc1088a1320..acf5a828c7e1 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1039,7 +1039,6 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_fua = (bio->bi_rw & REQ_FUA); unsigned long flags; struct md_rdev *blocked_rdev; - int plugged; int sectors_handled; int max_sectors; int sectors; @@ -1239,7 +1238,6 @@ read_again: * of r10_bios is recored in bio->bi_phys_segments just as with * the read case. */ - plugged = mddev_check_plugged(mddev); r10_bio->read_slot = -1; /* make sure repl_bio gets freed */ raid10_find_phys(conf, r10_bio); @@ -1396,6 +1394,8 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev, 0, 0)) + md_wakeup_thread(mddev->thread); if (!r10_bio->devs[i].repl_bio) continue; @@ -1423,6 +1423,8 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev)) + md_wakeup_thread(mddev->thread); } /* Don't remove the bias on 'remaining' (one_write_done) until @@ -1448,9 +1450,6 @@ retry_write: /* In case raid10d snuck in to freeze_array */ wake_up(&conf->wait_barrier); - - if (do_sync || !mddev->bitmap || !plugged) - md_wakeup_thread(mddev->thread); } static void status(struct seq_file *seq, struct mddev *mddev) @@ -2661,7 +2660,8 @@ static void raid10d(struct mddev *mddev) blk_start_plug(&plug); for (;;) { - flush_pending_writes(conf); + if (atomic_read(&mddev->plug_cnt) == 0) + flush_pending_writes(conf); spin_lock_irqsave(&conf->device_lock, flags); if (list_empty(head)) { diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7245a9df35a9..04348d76bb30 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3997,7 +3997,6 @@ static void make_request(struct mddev *mddev, struct bio * bi) struct stripe_head *sh; const int rw = bio_data_dir(bi); int remaining; - int plugged; if (unlikely(bi->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bi); @@ -4016,7 +4015,6 @@ static void make_request(struct mddev *mddev, struct bio * bi) bi->bi_next = NULL; bi->bi_phys_segments = 1; /* over-loaded to count active stripes */ - plugged = mddev_check_plugged(mddev); for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) { DEFINE_WAIT(w); int previous; @@ -4118,6 +4116,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) if ((bi->bi_rw & REQ_SYNC) && !test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) atomic_inc(&conf->preread_active_stripes); + mddev_check_plugged(mddev); release_stripe(sh); } else { /* cannot get stripe for read-ahead, just give-up */ @@ -4125,10 +4124,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) finish_wait(&conf->wait_for_overlap, &w); break; } - } - if (!plugged) - md_wakeup_thread(mddev->thread); spin_lock_irq(&conf->device_lock); remaining = raid5_dec_bi_phys_segments(bi); -- cgit v1.2.3 From 1ef5325b238676c7a16bcd374250b07e77682736 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 2 Jul 2012 12:40:54 -0400 Subject: drm/radeon: fix rare segfault MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In gem idle/busy ioctl the radeon object was derefenced after drm_gem_object_unreference_unlocked which in case the object have been destroyed lead to use of a possibly free pointer with possibly wrong data. Signed-off-by: Jerome Glisse Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_gem.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index f28bd4b7ef98..21ec9f5653ce 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -292,6 +292,7 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { + struct radeon_device *rdev = dev->dev_private; struct drm_radeon_gem_busy *args = data; struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -317,13 +318,14 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, break; } drm_gem_object_unreference_unlocked(gobj); - r = radeon_gem_handle_lockup(robj->rdev, r); + r = radeon_gem_handle_lockup(rdev, r); return r; } int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { + struct radeon_device *rdev = dev->dev_private; struct drm_radeon_gem_wait_idle *args = data; struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -336,10 +338,10 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, robj = gem_to_radeon_bo(gobj); r = radeon_bo_wait(robj, NULL, false); /* callback hw specific functions if any */ - if (robj->rdev->asic->ioctl_wait_idle) - robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); + if (rdev->asic->ioctl_wait_idle) + robj->rdev->asic->ioctl_wait_idle(rdev, robj); drm_gem_object_unreference_unlocked(gobj); - r = radeon_gem_handle_lockup(robj->rdev, r); + r = radeon_gem_handle_lockup(rdev, r); return r; } -- cgit v1.2.3 From 7b668ebe2fce517873b0c28dd70c10fef1d3dc2f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 3 Jul 2012 11:22:11 +0200 Subject: drm: edid: Don't add inferred modes with higher resolution When a monitor EDID doesn't give the preferred bit, driver assumes that the mode with the higest resolution and rate is the preferred mode. Meanwhile the recent changes for allowing more modes in the GFT/CVT ranges give actually more modes, and some modes may be over the native size. Thus such a mode would be picked up as the preferred mode although it's no native resolution. For avoiding such a problem, this patch limits the addition of inferred modes by checking not to be greater than other modes. Also, it checks the duplicated mode entry at the same time. Reviewed-by: Adam Jackson Signed-off-by: Takashi Iwai Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_edid.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5873e481e5d2..a8743c399e83 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1039,6 +1039,24 @@ mode_in_range(const struct drm_display_mode *mode, struct edid *edid, return true; } +static bool valid_inferred_mode(const struct drm_connector *connector, + const struct drm_display_mode *mode) +{ + struct drm_display_mode *m; + bool ok = false; + + list_for_each_entry(m, &connector->probed_modes, head) { + if (mode->hdisplay == m->hdisplay && + mode->vdisplay == m->vdisplay && + drm_mode_vrefresh(mode) == drm_mode_vrefresh(m)) + return false; /* duplicated */ + if (mode->hdisplay <= m->hdisplay && + mode->vdisplay <= m->vdisplay) + ok = true; + } + return ok; +} + static int drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid, struct detailed_timing *timing) @@ -1048,7 +1066,8 @@ drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid, struct drm_device *dev = connector->dev; for (i = 0; i < drm_num_dmt_modes; i++) { - if (mode_in_range(drm_dmt_modes + i, edid, timing)) { + if (mode_in_range(drm_dmt_modes + i, edid, timing) && + valid_inferred_mode(connector, drm_dmt_modes + i)) { newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]); if (newmode) { drm_mode_probed_add(connector, newmode); @@ -1088,7 +1107,8 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid, return modes; fixup_mode_1366x768(newmode); - if (!mode_in_range(newmode, edid, timing)) { + if (!mode_in_range(newmode, edid, timing) || + !valid_inferred_mode(connector, newmode)) { drm_mode_destroy(dev, newmode); continue; } @@ -1116,7 +1136,8 @@ drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid, return modes; fixup_mode_1366x768(newmode); - if (!mode_in_range(newmode, edid, timing)) { + if (!mode_in_range(newmode, edid, timing) || + !valid_inferred_mode(connector, newmode)) { drm_mode_destroy(dev, newmode); continue; } -- cgit v1.2.3 From 9f846a16d213523fbe6daea17e20df6b8ac5a1e5 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 1 Jul 2012 17:09:42 +0200 Subject: drm/i915: kick any firmware framebuffers before claiming the gtt Especially vesafb likes to map everything as uc- (yikes), and if that mapping hangs around still while we try to map the gtt as wc the kernel will downgrade our request to uc-, resulting in abyssal performance. Unfortunately we can't do this as early as readon does (i.e. as the first thing we do when initializing the hw) because our fb/mmio space region moves around on a per-gen basis. So I've had to move it below the gtt initialization, but that seems to work, too. The important thing is that we do this before we set up the gtt wc mapping. Now an altogether different question is why people compile their kernels with vesafb enabled, but I guess making things just work isn't bad per se ... v2: - s/radeondrmfb/inteldrmfb/ - fix up error handling v3: Kill #ifdef X86, this is Intel after all. Noticed by Ben Widawsky. v4: Jani Nikula complained about the pointless bool primary initialization. v5: Don't oops if we can't allocate, noticed by Chris Wilson. v6: Resolve conflicts with agp rework and fixup whitespace. This is commit e188719a2891f01b3100d in drm-next. Backport to 3.5 -fixes queue requested by Dave Airlie - due to grub using vesa on fedora their initrd seems to load vesafb before loading the real kms driver. So tons more people actually experience a dead-slow gpu. Hence also the Cc: stable. Cc: stable@vger.kernel.org Reported-and-tested-by: "Kilarski, Bernard R" Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_dma.c | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f94792626b94..36822b924eb1 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1401,6 +1401,27 @@ i915_mtrr_setup(struct drm_i915_private *dev_priv, unsigned long base, } } +static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv) +{ + struct apertures_struct *ap; + struct pci_dev *pdev = dev_priv->dev->pdev; + bool primary; + + ap = alloc_apertures(1); + if (!ap) + return; + + ap->ranges[0].base = dev_priv->dev->agp->base; + ap->ranges[0].size = + dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; + primary = + pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; + + remove_conflicting_framebuffers(ap, "inteldrmfb", primary); + + kfree(ap); +} + /** * i915_driver_load - setup chip and create an initial config * @dev: DRM device @@ -1446,6 +1467,15 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto free_priv; } + dev_priv->mm.gtt = intel_gtt_get(); + if (!dev_priv->mm.gtt) { + DRM_ERROR("Failed to initialize GTT\n"); + ret = -ENODEV; + goto put_bridge; + } + + i915_kick_out_firmware_fb(dev_priv); + pci_set_master(dev->pdev); /* overlay on gen2 is broken and can't address above 1G */ @@ -1471,13 +1501,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto put_bridge; } - dev_priv->mm.gtt = intel_gtt_get(); - if (!dev_priv->mm.gtt) { - DRM_ERROR("Failed to initialize GTT\n"); - ret = -ENODEV; - goto out_rmmap; - } - aperture_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; dev_priv->mm.gtt_mapping = -- cgit v1.2.3 From 0d200aefd4ac51787b6b80de1bb7ce93bccd59f6 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Tue, 3 Jul 2012 12:55:31 +0100 Subject: dm thin: commit metadata before creating metadata snapshot Userland sometimes sees a corrupt metadata block if metadata is changing rapidly when a metadata snapshot is reserved for userland, To make the problem go away, commit before we take the metadata snapshot (which is a sensible thing to do anyway). The checksums mean userland spots this corruption immediately so there's no risk of acting on incorrect data. No corruption exists from the kernel's point of view, and thin_check passes after pool shutdown. I believe this is to do with shared blocks at the first level of the {device, mapping} btree. Prior to the metadata-snap support no sharing at this level was possible, so this patch is only required after commit cc8394d86f045b86ff303d3c9e4ce47d97148951 ("dm thin: provide userspace access to pool metadata"). Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/dm-thin.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 37fdaf81bd1f..ce59824fb414 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2292,6 +2292,13 @@ static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct if (r) return r; + r = dm_pool_commit_metadata(pool->pmd); + if (r) { + DMERR("%s: dm_pool_commit_metadata() failed, error = %d", + __func__, r); + return r; + } + r = dm_pool_reserve_metadata_snap(pool->pmd); if (r) DMWARN("reserve_metadata_snap message failed."); -- cgit v1.2.3 From 25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:33 +0100 Subject: dm persistent data: fix shadow_info_leak on dm_tm_destroy Cleanup the shadow table before destroying the transaction manager. Reference: leak was identified with kmemleak when running test_discard_random_sectors in the thinp-test-suite. Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-transaction-manager.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 400fe144c0cd..02bf78e9d10d 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -138,6 +138,9 @@ EXPORT_SYMBOL_GPL(dm_tm_create_non_blocking_clone); void dm_tm_destroy(struct dm_transaction_manager *tm) { + if (!tm->is_clone) + wipe_shadow_table(tm); + kfree(tm); } EXPORT_SYMBOL_GPL(dm_tm_destroy); -- cgit v1.2.3 From 62662303e7f590fdfbb0070ab820a0ad4267c119 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:35 +0100 Subject: dm persistent data: handle space map checker creation failure If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and dm_sm_checker_create() fails, dm_tm_create_internal() would still return success even though it cleaned up all resources it was supposed to have created. This will lead to a kernel crash: general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC ... RIP: 0010:[] [] dm_bufio_get_block_size+0x9/0x20 Call Trace: [] dm_bm_block_size+0xe/0x10 [] sm_ll_init+0x78/0xd0 [] sm_ll_new_disk+0x16/0xa0 [] dm_sm_disk_create+0xfe/0x160 [] dm_pool_metadata_open+0x16e/0x6a0 [] pool_ctr+0x3f0/0x900 [] dm_table_add_target+0x195/0x450 [] table_load+0xe4/0x330 [] ctl_ioctl+0x15a/0x2c0 [] dm_ctl_ioctl+0x13/0x20 [] do_vfs_ioctl+0x98/0x560 [] sys_ioctl+0x91/0xa0 [] system_call_fastpath+0x16/0x1b Fix the space map checker code to return an appropriate ERR_PTR and have dm_sm_disk_create() and dm_tm_create_internal() check for it with IS_ERR. Reported-by: Vivek Goyal Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-space-map-checker.c | 24 +++++++++++----------- drivers/md/persistent-data/dm-space-map-disk.c | 11 +++++++++- .../md/persistent-data/dm-transaction-manager.c | 8 ++++++-- 3 files changed, 28 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 50ed53bf4aa2..6d7c8329250f 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -343,25 +343,25 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) int r; struct sm_checker *smc; - if (!sm) - return NULL; + if (IS_ERR_OR_NULL(sm)) + return ERR_PTR(-EINVAL); smc = kmalloc(sizeof(*smc), GFP_KERNEL); if (!smc) - return NULL; + return ERR_PTR(-ENOMEM); memcpy(&smc->sm, &ops_, sizeof(smc->sm)); r = ca_create(&smc->old_counts, sm); if (r) { kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_create(&smc->counts, sm); if (r) { ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } smc->real_sm = sm; @@ -371,7 +371,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) ca_destroy(&smc->counts); ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_commit(&smc->old_counts, &smc->counts); @@ -379,7 +379,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) ca_destroy(&smc->counts); ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } return &smc->sm; @@ -391,25 +391,25 @@ struct dm_space_map *dm_sm_checker_create_fresh(struct dm_space_map *sm) int r; struct sm_checker *smc; - if (!sm) - return NULL; + if (IS_ERR_OR_NULL(sm)) + return ERR_PTR(-EINVAL); smc = kmalloc(sizeof(*smc), GFP_KERNEL); if (!smc) - return NULL; + return ERR_PTR(-ENOMEM); memcpy(&smc->sm, &ops_, sizeof(smc->sm)); r = ca_create(&smc->old_counts, sm); if (r) { kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_create(&smc->counts, sm); if (r) { ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } smc->real_sm = sm; diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c index fc469ba9f627..3d0ed5332883 100644 --- a/drivers/md/persistent-data/dm-space-map-disk.c +++ b/drivers/md/persistent-data/dm-space-map-disk.c @@ -290,7 +290,16 @@ struct dm_space_map *dm_sm_disk_create(struct dm_transaction_manager *tm, dm_block_t nr_blocks) { struct dm_space_map *sm = dm_sm_disk_create_real(tm, nr_blocks); - return dm_sm_checker_create_fresh(sm); + struct dm_space_map *smc; + + if (IS_ERR_OR_NULL(sm)) + return sm; + + smc = dm_sm_checker_create_fresh(sm); + if (IS_ERR(smc)) + dm_sm_destroy(sm); + + return smc; } EXPORT_SYMBOL_GPL(dm_sm_disk_create); diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 02bf78e9d10d..e5604b32d91f 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -347,8 +347,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm, } *sm = dm_sm_checker_create(inner); - if (!*sm) + if (IS_ERR(*sm)) { + r = PTR_ERR(*sm); goto bad2; + } } else { r = dm_bm_write_lock(dm_tm_get_bm(*tm), sb_location, @@ -367,8 +369,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm, } *sm = dm_sm_checker_create(inner); - if (!*sm) + if (IS_ERR(*sm)) { + r = PTR_ERR(*sm); goto bad2; + } } return 0; -- cgit v1.2.3 From b0239faaf87c38bb419c9264bf20817438ddc3a9 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:37 +0100 Subject: dm persistent data: fix allocation failure in space map checker init If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and memory is fragmented and a sufficiently-large metadata device is used in a thin pool then the space map checker will fail to allocate the memory it requires. Switch from kmalloc to vmalloc to allow larger virtually contiguous allocations for the space map checker's internal count arrays. Reported-by: Vivek Goyal Cc: stable@kernel.org Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-space-map-checker.c | 30 ++++++++++++++--------- 1 file changed, 19 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 6d7c8329250f..fc90c11620ad 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -8,6 +8,7 @@ #include #include +#include #ifdef CONFIG_DM_DEBUG_SPACE_MAPS @@ -89,13 +90,23 @@ static int ca_create(struct count_array *ca, struct dm_space_map *sm) ca->nr = nr_blocks; ca->nr_free = nr_blocks; - ca->counts = kzalloc(sizeof(*ca->counts) * nr_blocks, GFP_KERNEL); - if (!ca->counts) - return -ENOMEM; + + if (!nr_blocks) + ca->counts = NULL; + else { + ca->counts = vzalloc(sizeof(*ca->counts) * nr_blocks); + if (!ca->counts) + return -ENOMEM; + } return 0; } +static void ca_destroy(struct count_array *ca) +{ + vfree(ca->counts); +} + static int ca_load(struct count_array *ca, struct dm_space_map *sm) { int r; @@ -126,12 +137,14 @@ static int ca_load(struct count_array *ca, struct dm_space_map *sm) static int ca_extend(struct count_array *ca, dm_block_t extra_blocks) { dm_block_t nr_blocks = ca->nr + extra_blocks; - uint32_t *counts = kzalloc(sizeof(*counts) * nr_blocks, GFP_KERNEL); + uint32_t *counts = vzalloc(sizeof(*counts) * nr_blocks); if (!counts) return -ENOMEM; - memcpy(counts, ca->counts, sizeof(*counts) * ca->nr); - kfree(ca->counts); + if (ca->counts) { + memcpy(counts, ca->counts, sizeof(*counts) * ca->nr); + ca_destroy(ca); + } ca->nr = nr_blocks; ca->nr_free += extra_blocks; ca->counts = counts; @@ -151,11 +164,6 @@ static int ca_commit(struct count_array *old, struct count_array *new) return 0; } -static void ca_destroy(struct count_array *ca) -{ - kfree(ca->counts); -} - /*----------------------------------------------------------------*/ struct sm_checker { -- cgit v1.2.3 From 7b86cef34afceeecf57d4d07f3cfab06f8b60b13 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 3 Jul 2012 11:05:50 -0500 Subject: gpio/omap: fix invalid context restore of gpio bank-0 Currently the gpio _runtime_resume/suspend functions are calling the get_context_loss_count() platform function if the function is populated for a gpio bank. This function is used to determine if the gpio bank logic state needs to be restored due to a power transition. This function will be populated for all banks, but it should only be called for banks that have the "loses_context" variable set. It is pointless to call this if loses_context is false as we know the context will never be lost and will not need restoring. For all OMAP2+ devices gpio bank-0 is in an always-on power domain and so will never lose context. We found that the get_context_loss_count() was being called for bank-0 during the probe and returning 1 instead of 0 indicating that the context had been lost. This was causing the context restore function to be called at probe time for this bank and because the context had never been saved, was restoring an invalid state. This ultimately resulted in a crash [1]. This issue is a regression that was exposed by commit 1b1287032 (gpio/omap: fix missing check in *_runtime_suspend()). There are multiple bugs here that need to be addressed ... 1. Why the always-on power domain returns a context loss count of 1? This needs to be fixed in the power domain code [2]. However, the gpio driver should not assume the loss count is 0 to begin with. 2. The omap gpio driver should never be calling get_context_loss_count for a gpio bank in a always-on domain. This is pointless and adds unneccessary overhead. 3. The OMAP gpio driver assumes that the initial power domain context loss count will be 0 at the time the gpio driver is probed. However, it could be possible that this is not the case and an invalid context restore could be performed during the probe. To avoid this only populate the get_context_loss_count() function pointer after the initial call to pm_runtime_get() has occurred. This will ensure that the first pm_runtime_put() initialised the loss count correctly. This patch addresses issues 2 and 3 above. [1] http://marc.info/?l=linux-omap&m=134065775323775&w=2 [2] http://marc.info/?l=linux-omap&m=134100413303810&w=2 Cc: Kevin Hilman Cc: Grant Likely Cc: Linus Walleij Cc: Tarun Kanti DebBarma Cc: Franky Lin Cc: Santosh Shilimkar Cc: NeilBrown Reported-by: Franky Lin Reviewed-by: Santosh Shilimkar Tested-by: Franky Lin Acked-by: Kevin Hilman Tested-by: NeilBrown Signed-off-by: Jon Hunter Signed-off-by: Kevin Hilman --- drivers/gpio/gpio-omap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index ff213e70fa5a..4fbc208c32cf 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1091,7 +1091,6 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) bank->is_mpuio = pdata->is_mpuio; bank->non_wakeup_gpios = pdata->non_wakeup_gpios; bank->loses_context = pdata->loses_context; - bank->get_context_loss_count = pdata->get_context_loss_count; bank->regs = pdata->regs; #ifdef CONFIG_OF_GPIO bank->chip.of_node = of_node_get(node); @@ -1145,6 +1144,9 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) omap_gpio_chip_init(bank); omap_gpio_show_rev(bank); + if (bank->loses_context) + bank->get_context_loss_count = pdata->get_context_loss_count; + pm_runtime_put(bank->dev); list_add_tail(&bank->node, &omap_gpio_list); -- cgit v1.2.3 From 863b13271f1608ab3af6f7a371047d9a66693e38 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 3 Jul 2012 12:11:41 +0530 Subject: clk: fix parent validation in __clk_set_parent() The below commit introduced a bug in __clk_set_parent() which could cause it to *skip* the parent validation which makes sure the parent passed to the api is a valid one. commit 7975059db572eb47f0fb272a62afeae272a4b209 Author: Rajendra Nayak Date: Wed Jun 6 14:41:31 2012 +0530 clk: Allow late cache allocation for clk->parents This was identified by the following compiler warning.. drivers/clk/clk.c: In function '__clk_set_parent': drivers/clk/clk.c:1083:5: warning: 'i' may be used uninitialized in this function [-Wuninitialized] .. as reported by Marc Kleine-Budde. There were various options discussed on how to fix this, one being initing 'i' to clk->num_parents, but the below approach was found to be more appropriate as it also makes the 'parent validation' code simpler to read. Reported-by: Marc Kleine-Budde Signed-off-by: Rajendra Nayak Signed-off-by: Mike Turquette Cc: stable@kernel.org --- drivers/clk/clk.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index dcbe05616090..9a1eb0cfa95f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1067,26 +1067,24 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent) old_parent = clk->parent; - /* find index of new parent clock using cached parent ptrs */ - if (clk->parents) - for (i = 0; i < clk->num_parents; i++) - if (clk->parents[i] == parent) - break; - else + if (!clk->parents) clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents), GFP_KERNEL); /* - * find index of new parent clock using string name comparison - * also try to cache the parent to avoid future calls to __clk_lookup + * find index of new parent clock using cached parent ptrs, + * or if not yet cached, use string name comparison and cache + * them now to avoid future calls to __clk_lookup. */ - if (i == clk->num_parents) - for (i = 0; i < clk->num_parents; i++) - if (!strcmp(clk->parent_names[i], parent->name)) { - if (clk->parents) - clk->parents[i] = __clk_lookup(parent->name); - break; - } + for (i = 0; i < clk->num_parents; i++) { + if (clk->parents && clk->parents[i] == parent) + break; + else if (!strcmp(clk->parent_names[i], parent->name)) { + if (clk->parents) + clk->parents[i] = __clk_lookup(parent->name); + break; + } + } if (i == clk->num_parents) { pr_debug("%s: clock %s is not a possible parent of clock %s\n", -- cgit v1.2.3 From 844e6901df45d2021d1f81b25e61159b5af2687f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 3 Jul 2012 15:19:33 +0800 Subject: regulator: tps65217: Fix voltage boundary checking in tps65217_pmic_map_voltage It is ok to request voltage with min_uV < tps->info[rid]->min_uV and max_uV > tps->info[rid]->max_uV. The equation we used in uv_to_vsel() does not allow min_uV < tps->info[rid]->min_uV, otherwise it returns negative selector. So we need to set min_uV = tps->info[rid]->min_uV if min_uV < tps->info[rid]->min_uV. Signed-off-by: Axel Lin Acked-by: AnilKumar Ch Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 0a3df5b7c904..f7d0495b003e 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -206,10 +206,10 @@ static int tps65217_pmic_map_voltage(struct regulator_dev *dev, if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; - if (min_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV) - return -EINVAL; + if (min_uV < tps->info[rid]->min_uV) + min_uV = tps->info[rid]->min_uV; - if (max_uV < tps->info[rid]->min_uV || max_uV > tps->info[rid]->max_uV) + if (max_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV) return -EINVAL; ret = tps->info[rid]->uv_to_vsel(min_uV, &sel); -- cgit v1.2.3 From 5260cd2bc97318b8477b1d1e99c5a2c53764135b Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 20 Jun 2012 17:53:06 +0530 Subject: regulator: dt: regulator match by regulator-compatible Match the device's regulators with the property of "regulator-compatible" of each regulator node. Signed-off-by: Laxman Dewangan Acked-by: Stephen Warren Signed-off-by: Mark Brown --- drivers/regulator/of_regulator.c | 51 ++++++++++++++++++++++++++-------------- 1 file changed, 33 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 68dc3d43dd37..3e4106f2bda9 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -92,15 +92,17 @@ struct regulator_init_data *of_get_regulator_init_data(struct device *dev, EXPORT_SYMBOL_GPL(of_get_regulator_init_data); /** - * of_regulator_match - extract regulator init data + * of_regulator_match - extract regulator init data when node + * property "regulator-compatible" matches with the regulator name. * @dev: device requesting the data * @node: parent device node of the regulators * @matches: match table for the regulators * @num_matches: number of entries in match table * * This function uses a match table specified by the regulator driver and - * looks up the corresponding init data in the device tree. Note that the - * match table is modified in place. + * looks up the corresponding init data in the device tree if + * regulator-compatible matches. Note that the match table is modified + * in place. * * Returns the number of matches found or a negative error code on failure. */ @@ -110,27 +112,40 @@ int of_regulator_match(struct device *dev, struct device_node *node, { unsigned int count = 0; unsigned int i; + const char *regulator_comp; + struct device_node *child; if (!dev || !node) return -EINVAL; - for (i = 0; i < num_matches; i++) { - struct of_regulator_match *match = &matches[i]; - struct device_node *child; - - child = of_find_node_by_name(node, match->name); - if (!child) - continue; - - match->init_data = of_get_regulator_init_data(dev, child); - if (!match->init_data) { - dev_err(dev, "failed to parse DT for regulator %s\n", + for_each_child_of_node(node, child) { + regulator_comp = of_get_property(child, + "regulator-compatible", NULL); + if (!regulator_comp) { + dev_err(dev, "regulator-compatible is missing for node %s\n", child->name); - return -EINVAL; + continue; + } + for (i = 0; i < num_matches; i++) { + struct of_regulator_match *match = &matches[i]; + if (match->of_node) + continue; + + if (strcmp(match->name, regulator_comp)) + continue; + + match->init_data = + of_get_regulator_init_data(dev, child); + if (!match->init_data) { + dev_err(dev, + "failed to parse DT for regulator %s\n", + child->name); + return -EINVAL; + } + match->of_node = child; + count++; + break; } - - match->of_node = child; - count++; } return count; -- cgit v1.2.3 From d92d95b6bf2722ffa0fefa7651c51bf336743dd7 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 2 Jul 2012 19:21:06 -0700 Subject: regulator: Fix recursive mutex lockdep warning A recursive lockdep warning occurs if you call regulator_set_optimum_mode() on a regulator with a supply because there is no nesting annotation for the rdev->mutex. To avoid this warning, get the supply's load before locking the regulator's mutex to avoid grabbing the same class of lock twice. ============================================= [ INFO: possible recursive locking detected ] 3.4.0 #3257 Tainted: G W --------------------------------------------- swapper/0/1 is trying to acquire lock: (&rdev->mutex){+.+.+.}, at: [] regulator_get_voltage+0x18/0x38 but task is already holding lock: (&rdev->mutex){+.+.+.}, at: [] regulator_set_optimum_mode+0x24/0x224 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&rdev->mutex); lock(&rdev->mutex); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by swapper/0/1: #0: (&__lockdep_no_validate__){......}, at: [] __driver_attach+0x40/0x8c #1: (&__lockdep_no_validate__){......}, at: [] __driver_attach+0x50/0x8c #2: (&rdev->mutex){+.+.+.}, at: [] regulator_set_optimum_mode+0x24/0x224 stack backtrace: [] (unwind_backtrace+0x0/0x12c) from [] (validate_chain+0x760/0x1080) [] (validate_chain+0x760/0x1080) from [] (__lock_acquire+0x950/0xa10) [] (__lock_acquire+0x950/0xa10) from [] (lock_acquire+0x18c/0x1e8) [] (lock_acquire+0x18c/0x1e8) from [] (mutex_lock_nested+0x68/0x3c4) [] (mutex_lock_nested+0x68/0x3c4) from [] (regulator_get_voltage+0x18/0x38) [] (regulator_get_voltage+0x18/0x38) from [] (regulator_set_optimum_mode+0xa4/0x224) ... Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- drivers/regulator/core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 09a737c868b5..8b4b3829d9e7 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2519,9 +2519,12 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) { struct regulator_dev *rdev = regulator->rdev; struct regulator *consumer; - int ret, output_uV, input_uV, total_uA_load = 0; + int ret, output_uV, input_uV = 0, total_uA_load = 0; unsigned int mode; + if (rdev->supply) + input_uV = regulator_get_voltage(rdev->supply); + mutex_lock(&rdev->mutex); /* @@ -2554,10 +2557,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) goto out; } - /* get input voltage */ - input_uV = 0; - if (rdev->supply) - input_uV = regulator_get_voltage(rdev->supply); + /* No supply? Use constraint voltage */ if (input_uV <= 0) input_uV = rdev->constraints->input_uV; if (input_uV <= 0) { -- cgit v1.2.3 From 79511ed3225a64f6b7fc749f4f9c1ed82f24f729 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:23:10 +0100 Subject: regulator: core: Allow fixed enable_time to be set in the regulator_desc Many regulators have a fixed specification for their enable time. Allow this to be set in the regulator_desc as a number to save them having to implement an explicit operation. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- include/linux/regulator/driver.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index aa82c0465f4f..6e488aa6f1e8 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1189,7 +1189,7 @@ overflow_err: static int _regulator_get_enable_time(struct regulator_dev *rdev) { if (!rdev->desc->ops->enable_time) - return 0; + return rdev->desc->enable_time; return rdev->desc->ops->enable_time(rdev); } diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 84f999ed394b..176bd4335581 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -180,6 +180,8 @@ enum regulator_type { * @vsel_mask: Mask for register bitfield used for selector * @enable_reg: Register for control when using regmap enable/disable ops * @enable_mask: Mask for control when using regmap enable/disable ops + * + * @enable_time: Time taken for initial enable of regulator (in uS). */ struct regulator_desc { const char *name; @@ -201,6 +203,8 @@ struct regulator_desc { unsigned int vsel_mask; unsigned int enable_reg; unsigned int enable_mask; + + unsigned int enable_time; }; /** -- cgit v1.2.3 From 3d0f267fcd9197d72551baf60165b40a00dfb66a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:27:22 +0100 Subject: regulator: fixed: Set enable enable_time in regulator_desc Signed-off-by: Mark Brown --- drivers/regulator/fixed.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index b8c3a910502a..5adc35aa6cc7 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -36,7 +36,6 @@ struct fixed_voltage_data { struct regulator_dev *dev; int microvolts; int gpio; - unsigned startup_delay; bool enable_high; bool is_enabled; }; @@ -136,13 +135,6 @@ static int fixed_voltage_disable(struct regulator_dev *dev) return 0; } -static int fixed_voltage_enable_time(struct regulator_dev *dev) -{ - struct fixed_voltage_data *data = rdev_get_drvdata(dev); - - return data->startup_delay; -} - static int fixed_voltage_get_voltage(struct regulator_dev *dev) { struct fixed_voltage_data *data = rdev_get_drvdata(dev); @@ -168,7 +160,6 @@ static struct regulator_ops fixed_voltage_gpio_ops = { .is_enabled = fixed_voltage_is_enabled, .enable = fixed_voltage_enable, .disable = fixed_voltage_disable, - .enable_time = fixed_voltage_enable_time, .get_voltage = fixed_voltage_get_voltage, .list_voltage = fixed_voltage_list_voltage, }; @@ -213,12 +204,13 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) drvdata->desc.type = REGULATOR_VOLTAGE; drvdata->desc.owner = THIS_MODULE; + drvdata->desc.enable_time = config->startup_delay; + if (config->microvolts) drvdata->desc.n_voltages = 1; drvdata->microvolts = config->microvolts; drvdata->gpio = config->gpio; - drvdata->startup_delay = config->startup_delay; if (gpio_is_valid(config->gpio)) { int gpio_flag; -- cgit v1.2.3 From 00581b30ae75ea0813207803e2b1d3f9abc55b9a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:29:27 +0100 Subject: regulator: wm8994: Set enable_time in descriptor Signed-off-by: Mark Brown --- drivers/regulator/wm8994-regulator.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c index 0e2028b74d1a..a056cee7ed46 100644 --- a/drivers/regulator/wm8994-regulator.c +++ b/drivers/regulator/wm8994-regulator.c @@ -70,18 +70,10 @@ static int wm8994_ldo_is_enabled(struct regulator_dev *rdev) return ldo->is_enabled; } -static int wm8994_ldo_enable_time(struct regulator_dev *rdev) -{ - /* 3ms is fairly conservative but this shouldn't be too performance - * critical; can be tweaked per-system if required. */ - return 3000; -} - static struct regulator_ops wm8994_ldo1_ops = { .enable = wm8994_ldo_enable, .disable = wm8994_ldo_disable, .is_enabled = wm8994_ldo_is_enabled, - .enable_time = wm8994_ldo_enable_time, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, @@ -119,7 +111,6 @@ static struct regulator_ops wm8994_ldo2_ops = { .enable = wm8994_ldo_enable, .disable = wm8994_ldo_disable, .is_enabled = wm8994_ldo_is_enabled, - .enable_time = wm8994_ldo_enable_time, .list_voltage = wm8994_ldo2_list_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, @@ -137,6 +128,7 @@ static const struct regulator_desc wm8994_ldo_desc[] = { .ops = &wm8994_ldo1_ops, .min_uV = 2400000, .uV_step = 100000, + .enable_time = 3000, .owner = THIS_MODULE, }, { @@ -147,6 +139,7 @@ static const struct regulator_desc wm8994_ldo_desc[] = { .vsel_reg = WM8994_LDO_2, .vsel_mask = WM8994_LDO2_VSEL_MASK, .ops = &wm8994_ldo2_ops, + .enable_time = 3000, .owner = THIS_MODULE, }, }; -- cgit v1.2.3 From eefaa3c6280f3d523348e1d200e5a8215ed66fbc Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 15:00:02 +0100 Subject: regulator: wm831x-ldo: Specify enable time for alive LDO Signed-off-by: Mark Brown --- drivers/regulator/wm831x-ldo.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index 04d8a413c260..5cb70ca1e98d 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -701,6 +701,7 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev) ldo->desc.enable_mask = 1 << id; ldo->desc.min_uV = 800000; ldo->desc.uV_step = 50000; + ldo->desc.enable_time = 1000; config.dev = pdev->dev.parent; if (pdata) -- cgit v1.2.3 From 5c5659d0a22ec4f947ef4faa3055767572f15e74 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 13:21:26 +0100 Subject: regulator: core: Factor out enable and disable operations some more Create new _regulator_do_enable() and _regulator_do_disable() operations which deal with the mechanics of performing the enable and disable, partly to cut down on the levels of indentation and partly to support some future work. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 110 +++++++++++++++++++++++++++++------------------ 1 file changed, 68 insertions(+), 42 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6e488aa6f1e8..82650a16a975 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1476,10 +1476,50 @@ void devm_regulator_put(struct regulator *regulator) } EXPORT_SYMBOL_GPL(devm_regulator_put); +static int _regulator_do_enable(struct regulator_dev *rdev) +{ + int ret, delay; + + /* Query before enabling in case configuration dependent. */ + ret = _regulator_get_enable_time(rdev); + if (ret >= 0) { + delay = ret; + } else { + rdev_warn(rdev, "enable_time() failed: %d\n", ret); + delay = 0; + } + + trace_regulator_enable(rdev_get_name(rdev)); + + if (rdev->desc->ops->enable) { + ret = rdev->desc->ops->enable(rdev); + if (ret < 0) + return ret; + } else { + return -EINVAL; + } + + /* Allow the regulator to ramp; it would be useful to extend + * this for bulk operations so that the regulators can ramp + * together. */ + trace_regulator_enable_delay(rdev_get_name(rdev)); + + if (delay >= 1000) { + mdelay(delay / 1000); + udelay(delay % 1000); + } else if (delay) { + udelay(delay); + } + + trace_regulator_enable_complete(rdev_get_name(rdev)); + + return 0; +} + /* locks held by regulator_enable() */ static int _regulator_enable(struct regulator_dev *rdev) { - int ret, delay; + int ret; /* check voltage and requested load before enabling */ if (rdev->constraints && @@ -1493,40 +1533,10 @@ static int _regulator_enable(struct regulator_dev *rdev) if (!_regulator_can_change_status(rdev)) return -EPERM; - if (!rdev->desc->ops->enable) - return -EINVAL; - - /* Query before enabling in case configuration - * dependent. */ - ret = _regulator_get_enable_time(rdev); - if (ret >= 0) { - delay = ret; - } else { - rdev_warn(rdev, "enable_time() failed: %d\n", - ret); - delay = 0; - } - - trace_regulator_enable(rdev_get_name(rdev)); - - /* Allow the regulator to ramp; it would be useful - * to extend this for bulk operations so that the - * regulators can ramp together. */ - ret = rdev->desc->ops->enable(rdev); + ret = _regulator_do_enable(rdev); if (ret < 0) return ret; - trace_regulator_enable_delay(rdev_get_name(rdev)); - - if (delay >= 1000) { - mdelay(delay / 1000); - udelay(delay % 1000); - } else if (delay) { - udelay(delay); - } - - trace_regulator_enable_complete(rdev_get_name(rdev)); - } else if (ret < 0) { rdev_err(rdev, "is_enabled() failed: %d\n", ret); return ret; @@ -1575,6 +1585,30 @@ int regulator_enable(struct regulator *regulator) } EXPORT_SYMBOL_GPL(regulator_enable); +static int _regulator_do_disable(struct regulator_dev *rdev) +{ + int ret; + + trace_regulator_disable(rdev_get_name(rdev)); + + if (rdev->ena_gpio) { + gpio_set_value_cansleep(rdev->ena_gpio, + rdev->ena_gpio_invert); + rdev->ena_gpio_state = 0; + + } else if (rdev->desc->ops->disable) { + ret = rdev->desc->ops->disable(rdev); + if (ret != 0) + return ret; + } + + trace_regulator_disable_complete(rdev_get_name(rdev)); + + _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE, + NULL); + return 0; +} + /* locks held by regulator_disable() */ static int _regulator_disable(struct regulator_dev *rdev) { @@ -1589,20 +1623,12 @@ static int _regulator_disable(struct regulator_dev *rdev) (rdev->constraints && !rdev->constraints->always_on)) { /* we are last user */ - if (_regulator_can_change_status(rdev) && - rdev->desc->ops->disable) { - trace_regulator_disable(rdev_get_name(rdev)); - - ret = rdev->desc->ops->disable(rdev); + if (_regulator_can_change_status(rdev)) { + ret = _regulator_do_disable(rdev); if (ret < 0) { rdev_err(rdev, "failed to disable\n"); return ret; } - - trace_regulator_disable_complete(rdev_get_name(rdev)); - - _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE, - NULL); } rdev->use_count = 0; -- cgit v1.2.3 From 65f735082de35aa4d44e8d0afe862798d0e09e29 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:14:38 +0100 Subject: regulator: core: Add core support for GPIO controlled enable lines It is very common for regulators to support having their enable signal controlled by a GPIO. Since there are a bunch of fiddly things to get right like handling the operations when the enable signal is tied to a rail and it's just replicated code add support for this to the core. Drivers should set ena_gpio in their config if they have a GPIO control, using ena_gpio_flags to specify any flags (including GPIOF_OUT_INIT_ for the initial state) and ena_gpio_invert if the GPIO is active low. The core will then override any enable and disable operations the driver has and instead control the specified GPIO. This will in the future also allow us to further extend the core by identifying when several enable signals have been tied together and handling this properly. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 35 ++++++++++++++++++++++++++++++++++- include/linux/regulator/driver.h | 11 +++++++++++ 2 files changed, 45 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 82650a16a975..8d81bafcb721 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -1491,7 +1492,11 @@ static int _regulator_do_enable(struct regulator_dev *rdev) trace_regulator_enable(rdev_get_name(rdev)); - if (rdev->desc->ops->enable) { + if (rdev->ena_gpio) { + gpio_set_value_cansleep(rdev->ena_gpio, + !rdev->ena_gpio_invert); + rdev->ena_gpio_state = 1; + } else if (rdev->desc->ops->enable) { ret = rdev->desc->ops->enable(rdev); if (ret < 0) return ret; @@ -1846,6 +1851,10 @@ EXPORT_SYMBOL_GPL(regulator_disable_regmap); static int _regulator_is_enabled(struct regulator_dev *rdev) { + /* A GPIO control always takes precedence */ + if (rdev->ena_gpio) + return rdev->ena_gpio_state; + /* If we don't know then assume that the regulator is always on */ if (!rdev->desc->ops->is_enabled) return 1; @@ -3243,6 +3252,26 @@ regulator_register(const struct regulator_desc *regulator_desc, dev_set_drvdata(&rdev->dev, rdev); + if (config->ena_gpio) { + ret = gpio_request_one(config->ena_gpio, + GPIOF_DIR_OUT | config->ena_gpio_flags, + rdev_get_name(rdev)); + if (ret != 0) { + rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", + config->ena_gpio, ret); + goto clean; + } + + rdev->ena_gpio = config->ena_gpio; + rdev->ena_gpio_invert = config->ena_gpio_invert; + + if (config->ena_gpio_flags & GPIOF_OUT_INIT_HIGH) + rdev->ena_gpio_state = 1; + + if (rdev->ena_gpio_invert) + rdev->ena_gpio_state = !rdev->ena_gpio_state; + } + /* set regulator constraints */ if (init_data) constraints = &init_data->constraints; @@ -3311,6 +3340,8 @@ unset_supplies: scrub: if (rdev->supply) regulator_put(rdev->supply); + if (rdev->ena_gpio) + gpio_free(rdev->ena_gpio); kfree(rdev->constraints); device_unregister(&rdev->dev); /* device core frees rdev */ @@ -3344,6 +3375,8 @@ void regulator_unregister(struct regulator_dev *rdev) unset_regulator_supplies(rdev); list_del(&rdev->list); kfree(rdev->constraints); + if (rdev->ena_gpio) + gpio_free(rdev->ena_gpio); device_unregister(&rdev->dev); mutex_unlock(®ulator_list_mutex); } diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 176bd4335581..b1b7b8b43ece 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -220,6 +220,9 @@ struct regulator_desc { * @of_node: OpenFirmware node to parse for device tree bindings (may be * NULL). * @regmap: regmap to use for core regmap helpers + * @ena_gpio: GPIO controlling regulator enable. + * @ena_gpio_invert: Sense for GPIO enable control. + * @ena_gpio_flags: Flags to use when calling gpio_request_one() */ struct regulator_config { struct device *dev; @@ -227,6 +230,10 @@ struct regulator_config { void *driver_data; struct device_node *of_node; struct regmap *regmap; + + int ena_gpio; + unsigned int ena_gpio_invert:1; + unsigned int ena_gpio_flags; }; /* @@ -265,6 +272,10 @@ struct regulator_dev { void *reg_data; /* regulator_dev data */ struct dentry *debugfs; + + int ena_gpio; + unsigned int ena_gpio_invert:1; + unsigned int ena_gpio_state:1; }; struct regulator_dev * -- cgit v1.2.3 From 25a53dfbfbfd10c52109ada40313e058b07b4b21 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:30:33 +0100 Subject: regulator: fixed: Use core GPIO enable support This is essentially the code that was factored out into the core when the feature was implemented. Signed-off-by: Mark Brown --- drivers/regulator/fixed.c | 106 ++++++++-------------------------------------- 1 file changed, 18 insertions(+), 88 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index 5adc35aa6cc7..1a0b17e8d8a9 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -35,9 +35,6 @@ struct fixed_voltage_data { struct regulator_desc desc; struct regulator_dev *dev; int microvolts; - int gpio; - bool enable_high; - bool is_enabled; }; @@ -108,33 +105,6 @@ of_get_fixed_voltage_config(struct device *dev) return config; } -static int fixed_voltage_is_enabled(struct regulator_dev *dev) -{ - struct fixed_voltage_data *data = rdev_get_drvdata(dev); - - return data->is_enabled; -} - -static int fixed_voltage_enable(struct regulator_dev *dev) -{ - struct fixed_voltage_data *data = rdev_get_drvdata(dev); - - gpio_set_value_cansleep(data->gpio, data->enable_high); - data->is_enabled = true; - - return 0; -} - -static int fixed_voltage_disable(struct regulator_dev *dev) -{ - struct fixed_voltage_data *data = rdev_get_drvdata(dev); - - gpio_set_value_cansleep(data->gpio, !data->enable_high); - data->is_enabled = false; - - return 0; -} - static int fixed_voltage_get_voltage(struct regulator_dev *dev) { struct fixed_voltage_data *data = rdev_get_drvdata(dev); @@ -156,14 +126,6 @@ static int fixed_voltage_list_voltage(struct regulator_dev *dev, return data->microvolts; } -static struct regulator_ops fixed_voltage_gpio_ops = { - .is_enabled = fixed_voltage_is_enabled, - .enable = fixed_voltage_enable, - .disable = fixed_voltage_disable, - .get_voltage = fixed_voltage_get_voltage, - .list_voltage = fixed_voltage_list_voltage, -}; - static struct regulator_ops fixed_voltage_ops = { .get_voltage = fixed_voltage_get_voltage, .list_voltage = fixed_voltage_list_voltage, @@ -203,6 +165,7 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) } drvdata->desc.type = REGULATOR_VOLTAGE; drvdata->desc.owner = THIS_MODULE; + drvdata->desc.ops = &fixed_voltage_ops; drvdata->desc.enable_time = config->startup_delay; @@ -210,53 +173,25 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) drvdata->desc.n_voltages = 1; drvdata->microvolts = config->microvolts; - drvdata->gpio = config->gpio; - - if (gpio_is_valid(config->gpio)) { - int gpio_flag; - drvdata->enable_high = config->enable_high; - - /* FIXME: Remove below print warning - * - * config->gpio must be set to -EINVAL by platform code if - * GPIO control is not required. However, early adopters - * not requiring GPIO control may forget to initialize - * config->gpio to -EINVAL. This will cause GPIO 0 to be used - * for GPIO control. - * - * This warning will be removed once there are a couple of users - * for this driver. - */ - if (!config->gpio) - dev_warn(&pdev->dev, - "using GPIO 0 for regulator enable control\n"); - - /* - * set output direction without changing state - * to prevent glitch - */ - drvdata->is_enabled = config->enabled_at_boot; - ret = drvdata->is_enabled ? - config->enable_high : !config->enable_high; - gpio_flag = ret ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW; - - if (config->gpio_is_open_drain) - gpio_flag |= GPIOF_OPEN_DRAIN; - - ret = gpio_request_one(config->gpio, gpio_flag, - config->supply_name); - if (ret) { - dev_err(&pdev->dev, - "Could not obtain regulator enable GPIO %d: %d\n", - config->gpio, ret); - goto err_name; - } - - drvdata->desc.ops = &fixed_voltage_gpio_ops; + if (config->gpio >= 0) + cfg.ena_gpio = config->gpio; + cfg.ena_gpio_invert = !config->enable_high; + if (config->enabled_at_boot) { + if (config->enable_high) { + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH; + } else { + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW; + } } else { - drvdata->desc.ops = &fixed_voltage_ops; + if (config->enable_high) { + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW; + } else { + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH; + } } + if (config->gpio_is_open_drain) + cfg.ena_gpio_flags |= GPIOF_OPEN_DRAIN; cfg.dev = &pdev->dev; cfg.init_data = config->init_data; @@ -267,7 +202,7 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) if (IS_ERR(drvdata->dev)) { ret = PTR_ERR(drvdata->dev); dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret); - goto err_gpio; + goto err_name; } platform_set_drvdata(pdev, drvdata); @@ -277,9 +212,6 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) return 0; -err_gpio: - if (gpio_is_valid(config->gpio)) - gpio_free(config->gpio); err_name: kfree(drvdata->desc.name); err: @@ -291,8 +223,6 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev) struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev); regulator_unregister(drvdata->dev); - if (gpio_is_valid(drvdata->gpio)) - gpio_free(drvdata->gpio); kfree(drvdata->desc.name); return 0; -- cgit v1.2.3 From 495fd8c8fdefebf545f8ea01d10ae7b812931c27 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:31:17 +0100 Subject: regulator: wm8994: Use core GPIO enable support Signed-off-by: Mark Brown --- drivers/regulator/wm8994-regulator.c | 68 +++--------------------------------- 1 file changed, 4 insertions(+), 64 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c index a056cee7ed46..86bb48db149e 100644 --- a/drivers/regulator/wm8994-regulator.c +++ b/drivers/regulator/wm8994-regulator.c @@ -26,8 +26,6 @@ #include struct wm8994_ldo { - int enable; - bool is_enabled; struct regulator_dev *regulator; struct wm8994 *wm8994; }; @@ -35,46 +33,7 @@ struct wm8994_ldo { #define WM8994_LDO1_MAX_SELECTOR 0x7 #define WM8994_LDO2_MAX_SELECTOR 0x3 -static int wm8994_ldo_enable(struct regulator_dev *rdev) -{ - struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); - - /* If we have no soft control assume that the LDO is always enabled. */ - if (!ldo->enable) - return 0; - - gpio_set_value_cansleep(ldo->enable, 1); - ldo->is_enabled = true; - - return 0; -} - -static int wm8994_ldo_disable(struct regulator_dev *rdev) -{ - struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); - - /* If we have no soft control assume that the LDO is always enabled. */ - if (!ldo->enable) - return -EINVAL; - - gpio_set_value_cansleep(ldo->enable, 0); - ldo->is_enabled = false; - - return 0; -} - -static int wm8994_ldo_is_enabled(struct regulator_dev *rdev) -{ - struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); - - return ldo->is_enabled; -} - static struct regulator_ops wm8994_ldo1_ops = { - .enable = wm8994_ldo_enable, - .disable = wm8994_ldo_disable, - .is_enabled = wm8994_ldo_is_enabled, - .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, @@ -108,10 +67,6 @@ static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev, } static struct regulator_ops wm8994_ldo2_ops = { - .enable = wm8994_ldo_enable, - .disable = wm8994_ldo_disable, - .is_enabled = wm8994_ldo_is_enabled, - .list_voltage = wm8994_ldo2_list_voltage, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, @@ -163,39 +118,26 @@ static __devinit int wm8994_ldo_probe(struct platform_device *pdev) ldo->wm8994 = wm8994; - if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) { - ldo->enable = pdata->ldo[id].enable; - - ret = gpio_request_one(ldo->enable, 0, "WM8994 LDO enable"); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get enable GPIO: %d\n", - ret); - goto err; - } - } else - ldo->is_enabled = true; - config.dev = wm8994->dev; config.driver_data = ldo; config.regmap = wm8994->regmap; - if (pdata) + if (pdata) { config.init_data = pdata->ldo[id].init_data; + config.ena_gpio = pdata->ldo[id].enable; + } ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &config); if (IS_ERR(ldo->regulator)) { ret = PTR_ERR(ldo->regulator); dev_err(wm8994->dev, "Failed to register LDO%d: %d\n", id + 1, ret); - goto err_gpio; + goto err; } platform_set_drvdata(pdev, ldo); return 0; -err_gpio: - if (gpio_is_valid(ldo->enable)) - gpio_free(ldo->enable); err: return ret; } @@ -207,8 +149,6 @@ static __devexit int wm8994_ldo_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); regulator_unregister(ldo->regulator); - if (gpio_is_valid(ldo->enable)) - gpio_free(ldo->enable); return 0; } -- cgit v1.2.3 From a9905b1d6fa80a07997520c7f554aedf3e1b47e7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Jun 2012 14:32:06 +0100 Subject: regulator: arizona-ldo1: Implement GPIO enable support Signed-off-by: Mark Brown --- drivers/regulator/arizona-ldo1.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index 51f02cac443f..c8f95c07adb6 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -57,6 +57,9 @@ static const struct regulator_desc arizona_ldo1 = { }; static const struct regulator_init_data arizona_ldo1_default = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, .num_consumer_supplies = 1, }; @@ -88,6 +91,7 @@ static __devinit int arizona_ldo1_probe(struct platform_device *pdev) config.dev = arizona->dev; config.driver_data = ldo1; config.regmap = arizona->regmap; + config.ena_gpio = arizona->pdata.ldoena; if (arizona->pdata.ldo1) config.init_data = arizona->pdata.ldo1; -- cgit v1.2.3 From dab058fd5ff834cb3b9de1d930ce731a605eb0c6 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 3 Jul 2012 15:51:22 -0700 Subject: floppy: cancel any pending fd_timeouts before adding a new one In commit 070ad7e793dc ("floppy: convert to delayed work and single-thread wq") the 'fd_timeout' timer was converted to a delayed work. However, the "del_timer(&fd_timeout)" was lost in the process, and any previous pending timeouts would stay active when we then re-queued the timeout. This resulted in the floppy probe sequence having a (stale) 20s timeout rather than the intended 3s timeout, and thus made booting with the floppy driver (but no actual floppy controller) take much longer than it should. Of course, there's little reason for most people to compile the floppy driver into the kernel at all, which is why most people never noticed. Canceling the delayed work where we used to do the del_timer() fixes the issue, and makes the floppy probing use the proper new timeout instead. The three second timeout is still very wasteful, but better than the 20s one. Reported-and-tested-by: Andi Kleen Reported-and-tested-by: Calvin Walton Cc: Jiri Kosina Signed-off-by: Linus Torvalds --- drivers/block/floppy.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index cce7df367b79..553f43a90953 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -671,6 +671,7 @@ static void __reschedule_timeout(int drive, const char *message) if (drive == current_reqD) drive = current_drive; + __cancel_delayed_work(&fd_timeout); if (drive < 0 || drive >= N_DRIVE) { delay = 20UL * HZ; -- cgit v1.2.3 From 10684112c9d154172ac34e48a2ab68649e8f63ac Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 4 Jul 2012 09:35:35 +1000 Subject: md/raid10: fix careless build error build error introduced by commit b357f04a67c2aeee8 That function doesn't get extra args until a later patch. Bother. Reported-by: Fengguang Wu Reported-by: Simon Kirby Reported-by: Tobias Klausmann Signed-off-by: NeilBrown --- drivers/md/raid10.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index acf5a828c7e1..8da6282254c3 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1394,7 +1394,7 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); - if (!mddev_check_plugged(mddev, 0, 0)) + if (!mddev_check_plugged(mddev)) md_wakeup_thread(mddev->thread); if (!r10_bio->devs[i].repl_bio) -- cgit v1.2.3 From d50394266b340d930a7458fa669d36e99670f200 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sun, 1 Jul 2012 11:31:35 +0300 Subject: remoteproc/omap: fix randconfig unmet direct dependencies OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL too, in order to avoid the below randconfig warnings. warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL) warning: (OMAP_REMOTEPROC) selects RPMSG which has unmet direct dependencies (EXPERIMENTAL) Cc: stable Reported-by: Tony Lindgren Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index 24d880e78ec6..db4e39b9164a 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -7,6 +7,7 @@ config REMOTEPROC config OMAP_REMOTEPROC tristate "OMAP remoteproc support" + depends on EXPERIMENTAL depends on ARCH_OMAP4 depends on OMAP_IOMMU select REMOTEPROC -- cgit v1.2.3 From fb31fbeb647ed1910290712c13f11f1db09e5506 Mon Sep 17 00:00:00 2001 From: Alexander Holler Date: Tue, 3 Jul 2012 14:35:47 +0800 Subject: leds: heartbeat: fix bug on panic With commit 49dca5aebfdeadd4bf27b6cb4c60392147dc35a4 I introduced a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic has happened: [ 1526.520230] =============================== [ 1526.520230] [ INFO: suspicious RCU usage. ] [ 1526.520230] 3.5.0-rc1+ #12 Not tainted [ 1526.520230] ------------------------------- [ 1526.520230] /c/kernel-tests/mm/include/linux/rcupdate.h:436 Illegal context switch in RCU read-side critical section! [ 1526.520230] [ 1526.520230] other info that might help us debug this: [ 1526.520230] [ 1526.520230] [ 1526.520230] rcu_scheduler_active = 1, debug_locks = 0 [ 1526.520230] 3 locks held by net.agent/3279: [ 1526.520230] #0: (&mm->mmap_sem){++++++}, at: [] do_page_fault+0x193/0x390 [ 1526.520230] #1: (panic_lock){+.+...}, at: [] panic+0x37/0x1d3 [ 1526.520230] #2: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x29 [ 1526.520230] [ 1526.520230] stack backtrace: [ 1526.520230] Pid: 3279, comm: net.agent Not tainted 3.5.0-rc1+ #12 [ 1526.520230] Call Trace: [ 1526.520230] [] lockdep_rcu_suspicious+0x109/0x112 [ 1526.520230] [] rcu_preempt_sleep_check+0x45/0x47 [ 1526.520230] [] __might_sleep+0x1e/0x19a [ 1526.520230] [] down_write+0x26/0x81 [ 1526.520230] [] led_trigger_unregister+0x1f/0x9c [ 1526.520230] [] heartbeat_reboot_notifier+0x15/0x19 [ 1526.520230] [] notifier_call_chain+0x96/0xcd [ 1526.520230] [] __atomic_notifier_call_chain+0x8e/0xff [ 1526.520230] [] ? kmsg_dump+0x37/0x1eb [ 1526.520230] [] atomic_notifier_call_chain+0x14/0x16 [ 1526.520230] [] panic+0xe8/0x1d3 [ 1526.520230] [] out_of_memory+0x15d/0x1d3 So in case of a panic, now just turn of the LED. Other approaches like scheduling a work to unregister the trigger aren't working because there isn't much which still runs after a panic occured (except timers). Signed-off-by: Alexander Holler Signed-off-by: Bryan Wu --- drivers/leds/ledtrig-heartbeat.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/leds/ledtrig-heartbeat.c b/drivers/leds/ledtrig-heartbeat.c index 41dc76db4311..a019fbb70880 100644 --- a/drivers/leds/ledtrig-heartbeat.c +++ b/drivers/leds/ledtrig-heartbeat.c @@ -21,6 +21,8 @@ #include #include "leds.h" +static int panic_heartbeats; + struct heartbeat_trig_data { unsigned int phase; unsigned int period; @@ -34,6 +36,11 @@ static void led_heartbeat_function(unsigned long data) unsigned long brightness = LED_OFF; unsigned long delay = 0; + if (unlikely(panic_heartbeats)) { + led_set_brightness(led_cdev, LED_OFF); + return; + } + /* acts like an actual heart beat -- ie thump-thump-pause... */ switch (heartbeat_data->phase) { case 0: @@ -111,12 +118,19 @@ static int heartbeat_reboot_notifier(struct notifier_block *nb, return NOTIFY_DONE; } +static int heartbeat_panic_notifier(struct notifier_block *nb, + unsigned long code, void *unused) +{ + panic_heartbeats = 1; + return NOTIFY_DONE; +} + static struct notifier_block heartbeat_reboot_nb = { .notifier_call = heartbeat_reboot_notifier, }; static struct notifier_block heartbeat_panic_nb = { - .notifier_call = heartbeat_reboot_notifier, + .notifier_call = heartbeat_panic_notifier, }; static int __init heartbeat_trig_init(void) -- cgit v1.2.3 From e121aefa7d9f10eee5cf26ed47129237a05d940b Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sun, 1 Jul 2012 11:53:36 +0300 Subject: remoteproc: fix missing CONFIG_FW_LOADER configurations Remoteproc requires user space firmware loading support, so let's select FW_LOADER explicitly to avoid painful misconfigurations (which only show up in runtime). Cc: stable Reported-by: Mark Grosen Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index db4e39b9164a..f8d818abf98c 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -4,6 +4,7 @@ menu "Remoteproc drivers (EXPERIMENTAL)" config REMOTEPROC tristate depends on EXPERIMENTAL + select FW_CONFIG config OMAP_REMOTEPROC tristate "OMAP remoteproc support" -- cgit v1.2.3 From 5a081caa0414b9bbb82c17ffab9d6fe66edbb72f Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Wed, 6 Jun 2012 10:09:25 +0300 Subject: rpmsg: avoid premature deallocation of endpoints When an inbound message arrives, the rpmsg core looks up its associated endpoint and invokes the registered callback. If a message arrives while its endpoint is being removed (because the rpmsg driver was removed, or a recovery of a remote processor has kicked in) we must ensure atomicity, i.e.: - Either the ept is removed before it is found or - The ept is found but will not be freed until the callback returns This is achieved by maintaining a per-ept reference count, which, when drops to zero, will trigger deallocation of the ept. With this in hand, it is now forbidden to directly deallocate epts once they have been added to the endpoints idr. Cc: stable Reported-by: Fernando Guzman Lugo Signed-off-by: Ohad Ben-Cohen --- drivers/rpmsg/virtio_rpmsg_bus.c | 36 ++++++++++++++++++++++++++++++++++-- include/linux/rpmsg.h | 3 +++ 2 files changed, 37 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 75506ec2840e..9623327ba509 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -188,6 +188,26 @@ static int rpmsg_uevent(struct device *dev, struct kobj_uevent_env *env) rpdev->id.name); } +/** + * __ept_release() - deallocate an rpmsg endpoint + * @kref: the ept's reference count + * + * This function deallocates an ept, and is invoked when its @kref refcount + * drops to zero. + * + * Never invoke this function directly! + */ +static void __ept_release(struct kref *kref) +{ + struct rpmsg_endpoint *ept = container_of(kref, struct rpmsg_endpoint, + refcount); + /* + * At this point no one holds a reference to ept anymore, + * so we can directly free it + */ + kfree(ept); +} + /* for more info, see below documentation of rpmsg_create_ept() */ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, struct rpmsg_channel *rpdev, rpmsg_rx_cb_t cb, @@ -206,6 +226,8 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, return NULL; } + kref_init(&ept->refcount); + ept->rpdev = rpdev; ept->cb = cb; ept->priv = priv; @@ -238,7 +260,7 @@ rem_idr: idr_remove(&vrp->endpoints, request); free_ept: mutex_unlock(&vrp->endpoints_lock); - kfree(ept); + kref_put(&ept->refcount, __ept_release); return NULL; } @@ -306,7 +328,7 @@ __rpmsg_destroy_ept(struct virtproc_info *vrp, struct rpmsg_endpoint *ept) idr_remove(&vrp->endpoints, ept->addr); mutex_unlock(&vrp->endpoints_lock); - kfree(ept); + kref_put(&ept->refcount, __ept_release); } /** @@ -790,7 +812,13 @@ static void rpmsg_recv_done(struct virtqueue *rvq) /* use the dst addr to fetch the callback of the appropriate user */ mutex_lock(&vrp->endpoints_lock); + ept = idr_find(&vrp->endpoints, msg->dst); + + /* let's make sure no one deallocates ept while we use it */ + if (ept) + kref_get(&ept->refcount); + mutex_unlock(&vrp->endpoints_lock); if (ept && ept->cb) @@ -798,6 +826,10 @@ static void rpmsg_recv_done(struct virtqueue *rvq) else dev_warn(dev, "msg received with no recepient\n"); + /* farewell, ept, we don't need you anymore */ + if (ept) + kref_put(&ept->refcount, __ept_release); + /* publish the real size of the buffer */ sg_init_one(&sg, msg, RPMSG_BUF_SIZE); diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index a8e50e44203c..195f373590b8 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -38,6 +38,7 @@ #include #include #include +#include /* The feature bitmap for virtio rpmsg */ #define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ @@ -120,6 +121,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); /** * struct rpmsg_endpoint - binds a local rpmsg address to its user * @rpdev: rpmsg channel device + * @refcount: when this drops to zero, the ept is deallocated * @cb: rx callback handler * @addr: local rpmsg address * @priv: private data for the driver's use @@ -140,6 +142,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); */ struct rpmsg_endpoint { struct rpmsg_channel *rpdev; + struct kref refcount; rpmsg_rx_cb_t cb; u32 addr; void *priv; -- cgit v1.2.3 From 15fd943af50dbc5f7f4de33835795c72595f7bf4 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Thu, 7 Jun 2012 15:39:35 +0300 Subject: rpmsg: make sure inflight messages don't invoke just-removed callbacks When inbound messages arrive, rpmsg core looks up their associated endpoint (by destination address) and then invokes their callback. We've made sure that endpoints will never be de-allocated after they were found by rpmsg core, but we also need to protect against the (rare) scenario where the rpmsg driver was just removed, and its callback function isn't available anymore. This is achieved by introducing a callback mutex, which must be taken before the callback is invoked, and, obviously, before it is removed. Cc: stable Reported-by: Fernando Guzman Lugo Signed-off-by: Ohad Ben-Cohen --- drivers/rpmsg/virtio_rpmsg_bus.c | 25 +++++++++++++++++++------ include/linux/rpmsg.h | 3 +++ 2 files changed, 22 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 9623327ba509..39d3aa41adda 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -227,6 +227,7 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, } kref_init(&ept->refcount); + mutex_init(&ept->cb_lock); ept->rpdev = rpdev; ept->cb = cb; @@ -324,10 +325,16 @@ EXPORT_SYMBOL(rpmsg_create_ept); static void __rpmsg_destroy_ept(struct virtproc_info *vrp, struct rpmsg_endpoint *ept) { + /* make sure new inbound messages can't find this ept anymore */ mutex_lock(&vrp->endpoints_lock); idr_remove(&vrp->endpoints, ept->addr); mutex_unlock(&vrp->endpoints_lock); + /* make sure in-flight inbound messages won't invoke cb anymore */ + mutex_lock(&ept->cb_lock); + ept->cb = NULL; + mutex_unlock(&ept->cb_lock); + kref_put(&ept->refcount, __ept_release); } @@ -821,14 +828,20 @@ static void rpmsg_recv_done(struct virtqueue *rvq) mutex_unlock(&vrp->endpoints_lock); - if (ept && ept->cb) - ept->cb(ept->rpdev, msg->data, msg->len, ept->priv, msg->src); - else - dev_warn(dev, "msg received with no recepient\n"); + if (ept) { + /* make sure ept->cb doesn't go away while we use it */ + mutex_lock(&ept->cb_lock); - /* farewell, ept, we don't need you anymore */ - if (ept) + if (ept->cb) + ept->cb(ept->rpdev, msg->data, msg->len, ept->priv, + msg->src); + + mutex_unlock(&ept->cb_lock); + + /* farewell, ept, we don't need you anymore */ kref_put(&ept->refcount, __ept_release); + } else + dev_warn(dev, "msg received with no recepient\n"); /* publish the real size of the buffer */ sg_init_one(&sg, msg, RPMSG_BUF_SIZE); diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 195f373590b8..82a673905edb 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -39,6 +39,7 @@ #include #include #include +#include /* The feature bitmap for virtio rpmsg */ #define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ @@ -123,6 +124,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); * @rpdev: rpmsg channel device * @refcount: when this drops to zero, the ept is deallocated * @cb: rx callback handler + * @cb_lock: must be taken before accessing/changing @cb * @addr: local rpmsg address * @priv: private data for the driver's use * @@ -144,6 +146,7 @@ struct rpmsg_endpoint { struct rpmsg_channel *rpdev; struct kref refcount; rpmsg_rx_cb_t cb; + struct mutex cb_lock; u32 addr; void *priv; }; -- cgit v1.2.3 From 94f48ab32b5a875fcf2f62e72de8f666136d98ba Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 09:59:17 +0800 Subject: regulator: tps65910: Set enable enable_time in regulator_desc Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index 66da87cc0879..a534e0872006 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -412,13 +412,6 @@ static int tps65911_get_ctrl_register(int id) } } -static int tps65910_enable_time(struct regulator_dev *dev) -{ - struct tps65910_reg *pmic = rdev_get_drvdata(dev); - int id = rdev_get_id(dev); - return pmic->info[id]->enable_time_us; -} - static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode) { struct tps65910_reg *pmic = rdev_get_drvdata(dev); @@ -762,7 +755,6 @@ static struct regulator_ops tps65910_ops_dcdc = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .enable_time = tps65910_enable_time, .set_mode = tps65910_set_mode, .get_mode = tps65910_get_mode, .get_voltage_sel = tps65910_get_voltage_dcdc_sel, @@ -775,7 +767,6 @@ static struct regulator_ops tps65910_ops_vdd3 = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .enable_time = tps65910_enable_time, .set_mode = tps65910_set_mode, .get_mode = tps65910_get_mode, .get_voltage = tps65910_get_voltage_vdd3, @@ -786,7 +777,6 @@ static struct regulator_ops tps65910_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .enable_time = tps65910_enable_time, .set_mode = tps65910_set_mode, .get_mode = tps65910_get_mode, .get_voltage_sel = tps65910_get_voltage_sel, @@ -798,7 +788,6 @@ static struct regulator_ops tps65911_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .enable_time = tps65910_enable_time, .set_mode = tps65910_set_mode, .get_mode = tps65910_get_mode, .get_voltage_sel = tps65911_get_voltage_sel, @@ -1139,6 +1128,7 @@ static __devinit int tps65910_probe(struct platform_device *pdev) pmic->desc[i].name = info->name; pmic->desc[i].id = i; pmic->desc[i].n_voltages = info->n_voltages; + pmic->desc[i].enable_time = info->enable_time_us; if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) { pmic->desc[i].ops = &tps65910_ops_dcdc; -- cgit v1.2.3 From a2a8222be8385818ade54554a50f7904ed0e506f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 10:19:46 +0800 Subject: regulator: gpio-regulator: Set enable enable_time in regulator_desc Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/gpio-regulator.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 242851a4c1a6..3ed8d158833b 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -39,7 +39,6 @@ struct gpio_regulator_data { int enable_gpio; bool enable_high; bool is_enabled; - unsigned startup_delay; struct gpio *gpios; int nr_gpios; @@ -81,13 +80,6 @@ static int gpio_regulator_disable(struct regulator_dev *dev) return 0; } -static int gpio_regulator_enable_time(struct regulator_dev *dev) -{ - struct gpio_regulator_data *data = rdev_get_drvdata(dev); - - return data->startup_delay; -} - static int gpio_regulator_get_value(struct regulator_dev *dev) { struct gpio_regulator_data *data = rdev_get_drvdata(dev); @@ -156,7 +148,6 @@ static struct regulator_ops gpio_regulator_voltage_ops = { .is_enabled = gpio_regulator_is_enabled, .enable = gpio_regulator_enable, .disable = gpio_regulator_disable, - .enable_time = gpio_regulator_enable_time, .get_voltage = gpio_regulator_get_value, .set_voltage = gpio_regulator_set_voltage, .list_voltage = gpio_regulator_list_voltage, @@ -166,7 +157,6 @@ static struct regulator_ops gpio_regulator_current_ops = { .is_enabled = gpio_regulator_is_enabled, .enable = gpio_regulator_enable, .disable = gpio_regulator_disable, - .enable_time = gpio_regulator_enable_time, .get_current_limit = gpio_regulator_get_value, .set_current_limit = gpio_regulator_set_current_limit, }; @@ -213,6 +203,7 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev) drvdata->nr_states = config->nr_states; drvdata->desc.owner = THIS_MODULE; + drvdata->desc.enable_time = config->startup_delay; /* handle regulator type*/ switch (config->type) { @@ -233,7 +224,6 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev) } drvdata->enable_gpio = config->enable_gpio; - drvdata->startup_delay = config->startup_delay; if (gpio_is_valid(config->enable_gpio)) { drvdata->enable_high = config->enable_high; -- cgit v1.2.3 From 4b7c948f558bf1d51aa25a6f621056c0acf45228 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 10:20:46 +0800 Subject: regulator: gpio-regulator: Use core GPIO enable support Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/gpio-regulator.c | 103 ++++++------------------------------- 1 file changed, 16 insertions(+), 87 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 3ed8d158833b..34b67bee9323 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -36,10 +36,6 @@ struct gpio_regulator_data { struct regulator_desc desc; struct regulator_dev *dev; - int enable_gpio; - bool enable_high; - bool is_enabled; - struct gpio *gpios; int nr_gpios; @@ -49,37 +45,6 @@ struct gpio_regulator_data { int state; }; -static int gpio_regulator_is_enabled(struct regulator_dev *dev) -{ - struct gpio_regulator_data *data = rdev_get_drvdata(dev); - - return data->is_enabled; -} - -static int gpio_regulator_enable(struct regulator_dev *dev) -{ - struct gpio_regulator_data *data = rdev_get_drvdata(dev); - - if (gpio_is_valid(data->enable_gpio)) { - gpio_set_value_cansleep(data->enable_gpio, data->enable_high); - data->is_enabled = true; - } - - return 0; -} - -static int gpio_regulator_disable(struct regulator_dev *dev) -{ - struct gpio_regulator_data *data = rdev_get_drvdata(dev); - - if (gpio_is_valid(data->enable_gpio)) { - gpio_set_value_cansleep(data->enable_gpio, !data->enable_high); - data->is_enabled = false; - } - - return 0; -} - static int gpio_regulator_get_value(struct regulator_dev *dev) { struct gpio_regulator_data *data = rdev_get_drvdata(dev); @@ -145,18 +110,12 @@ static int gpio_regulator_set_current_limit(struct regulator_dev *dev, } static struct regulator_ops gpio_regulator_voltage_ops = { - .is_enabled = gpio_regulator_is_enabled, - .enable = gpio_regulator_enable, - .disable = gpio_regulator_disable, .get_voltage = gpio_regulator_get_value, .set_voltage = gpio_regulator_set_voltage, .list_voltage = gpio_regulator_list_voltage, }; static struct regulator_ops gpio_regulator_current_ops = { - .is_enabled = gpio_regulator_is_enabled, - .enable = gpio_regulator_enable, - .disable = gpio_regulator_disable, .get_current_limit = gpio_regulator_get_value, .set_current_limit = gpio_regulator_set_current_limit, }; @@ -223,51 +182,12 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev) break; } - drvdata->enable_gpio = config->enable_gpio; - - if (gpio_is_valid(config->enable_gpio)) { - drvdata->enable_high = config->enable_high; - - ret = gpio_request(config->enable_gpio, config->supply_name); - if (ret) { - dev_err(&pdev->dev, - "Could not obtain regulator enable GPIO %d: %d\n", - config->enable_gpio, ret); - goto err_memstate; - } - - /* set output direction without changing state - * to prevent glitch - */ - if (config->enabled_at_boot) { - drvdata->is_enabled = true; - ret = gpio_direction_output(config->enable_gpio, - config->enable_high); - } else { - drvdata->is_enabled = false; - ret = gpio_direction_output(config->enable_gpio, - !config->enable_high); - } - - if (ret) { - dev_err(&pdev->dev, - "Could not configure regulator enable GPIO %d direction: %d\n", - config->enable_gpio, ret); - goto err_enablegpio; - } - } else { - /* Regulator without GPIO control is considered - * always enabled - */ - drvdata->is_enabled = true; - } - drvdata->nr_gpios = config->nr_gpios; ret = gpio_request_array(drvdata->gpios, drvdata->nr_gpios); if (ret) { dev_err(&pdev->dev, "Could not obtain regulator setting GPIOs: %d\n", ret); - goto err_enablegpio; + goto err_memstate; } /* build initial state from gpio init data. */ @@ -282,6 +202,21 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev) cfg.init_data = config->init_data; cfg.driver_data = drvdata; + if (config->enable_gpio >= 0) + cfg.ena_gpio = config->enable_gpio; + cfg.ena_gpio_invert = !config->enable_high; + if (config->enabled_at_boot) { + if (config->enable_high) + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH; + else + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW; + } else { + if (config->enable_high) + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW; + else + cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH; + } + drvdata->dev = regulator_register(&drvdata->desc, &cfg); if (IS_ERR(drvdata->dev)) { ret = PTR_ERR(drvdata->dev); @@ -295,9 +230,6 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev) err_stategpio: gpio_free_array(drvdata->gpios, drvdata->nr_gpios); -err_enablegpio: - if (gpio_is_valid(config->enable_gpio)) - gpio_free(config->enable_gpio); err_memstate: kfree(drvdata->states); err_memgpio: @@ -319,9 +251,6 @@ static int __devexit gpio_regulator_remove(struct platform_device *pdev) kfree(drvdata->states); kfree(drvdata->gpios); - if (gpio_is_valid(drvdata->enable_gpio)) - gpio_free(drvdata->enable_gpio); - kfree(drvdata->desc.name); return 0; -- cgit v1.2.3 From fca53d862dcbddaa9db017b70a64392da8c20bce Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 10:46:34 +0800 Subject: regulator: twl: Set enable enable_time in regulator_desc Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/twl-regulator.c | 31 ++++--------------------------- 1 file changed, 4 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index ca308cb8e676..8f0bd56c2118 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -43,9 +43,6 @@ struct twlreg_info { u8 table_len; const u16 *table; - /* regulator specific turn-on delay */ - u16 delay; - /* State REMAP default configuration */ u8 remap; @@ -223,20 +220,6 @@ static int twl6030reg_enable(struct regulator_dev *rdev) return ret; } -static int twl4030reg_enable_time(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return info->delay; -} - -static int twl6030reg_enable_time(struct regulator_dev *rdev) -{ - struct twlreg_info *info = rdev_get_drvdata(rdev); - - return info->delay; -} - static int twl4030reg_disable(struct regulator_dev *rdev) { struct twlreg_info *info = rdev_get_drvdata(rdev); @@ -508,7 +491,6 @@ static struct regulator_ops twl4030ldo_ops = { .enable = twl4030reg_enable, .disable = twl4030reg_disable, .is_enabled = twl4030reg_is_enabled, - .enable_time = twl4030reg_enable_time, .set_mode = twl4030reg_set_mode, @@ -622,7 +604,6 @@ static struct regulator_ops twl6030ldo_ops = { .enable = twl6030reg_enable, .disable = twl6030reg_disable, .is_enabled = twl6030reg_is_enabled, - .enable_time = twl6030reg_enable_time, .set_mode = twl6030reg_set_mode, @@ -656,7 +637,6 @@ static struct regulator_ops twl4030fixed_ops = { .enable = twl4030reg_enable, .disable = twl4030reg_disable, .is_enabled = twl4030reg_is_enabled, - .enable_time = twl4030reg_enable_time, .set_mode = twl4030reg_set_mode, @@ -671,7 +651,6 @@ static struct regulator_ops twl6030fixed_ops = { .enable = twl6030reg_enable, .disable = twl6030reg_disable, .is_enabled = twl6030reg_is_enabled, - .enable_time = twl6030reg_enable_time, .set_mode = twl6030reg_set_mode, @@ -682,7 +661,6 @@ static struct regulator_ops twl6030_fixed_resource = { .enable = twl6030reg_enable, .disable = twl6030reg_disable, .is_enabled = twl6030reg_is_enabled, - .enable_time = twl6030reg_enable_time, .get_status = twl6030reg_get_status, }; @@ -879,7 +857,6 @@ static struct regulator_ops twlsmps_ops = { .enable = twl6030reg_enable, .disable = twl6030reg_disable, .is_enabled = twl6030reg_is_enabled, - .enable_time = twl6030reg_enable_time, .set_mode = twl6030reg_set_mode, @@ -902,7 +879,6 @@ static struct twlreg_info TWL4030_INFO_##label = { \ .id = num, \ .table_len = ARRAY_SIZE(label##_VSEL_table), \ .table = label##_VSEL_table, \ - .delay = turnon_delay, \ .remap = remap_conf, \ .desc = { \ .name = #label, \ @@ -911,6 +887,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \ .ops = &twl4030ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .enable_time = turnon_delay, \ }, \ } @@ -918,7 +895,6 @@ static struct twlreg_info TWL4030_INFO_##label = { \ static struct twlreg_info TWL4030_INFO_##label = { \ .base = offset, \ .id = num, \ - .delay = turnon_delay, \ .remap = remap_conf, \ .desc = { \ .name = #label, \ @@ -926,6 +902,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \ .ops = &twl4030smps_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .enable_time = turnon_delay, \ }, \ } @@ -980,7 +957,6 @@ static struct twlreg_info TWLFIXED_INFO_##label = { \ .base = offset, \ .id = num, \ .min_mV = mVolts, \ - .delay = turnon_delay, \ .remap = remap_conf, \ .desc = { \ .name = #label, \ @@ -989,19 +965,20 @@ static struct twlreg_info TWLFIXED_INFO_##label = { \ .ops = &operations, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .enable_time = turnon_delay, \ }, \ } #define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \ static struct twlreg_info TWLRES_INFO_##label = { \ .base = offset, \ - .delay = turnon_delay, \ .desc = { \ .name = #label, \ .id = TWL6030_REG_##label, \ .ops = &twl6030_fixed_resource, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ + .enable_time = turnon_delay, \ }, \ } -- cgit v1.2.3 From 9c6a74c5e0ca3bfac09cb1e7bf7629cc0f3aa48c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 11:55:07 +0800 Subject: regulator: ad5398: Fix min/max current limit boundary checking It is ok to request current limit with min_uA < chip->min_uA and max_uA > chip->max_uA. We need to set min_uA = chip->min_uA if (min_uA < chip->min_uA), this ensures the equation to calcuate selator does not return negative number. Also set max_uA = chip->max_uA if (max_uA > chip->max_uA), as suggested by Sonic. Signed-off-by: Axel Lin Acked-by: Sonic Zhang Signed-off-by: Mark Brown --- drivers/regulator/ad5398.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c index 46d05f38baf8..f123f7e3b752 100644 --- a/drivers/regulator/ad5398.c +++ b/drivers/regulator/ad5398.c @@ -89,9 +89,12 @@ static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int unsigned short data; int ret; - if (min_uA > chip->max_uA || min_uA < chip->min_uA) - return -EINVAL; - if (max_uA > chip->max_uA || max_uA < chip->min_uA) + if (min_uA < chip->min_uA) + min_uA = chip->min_uA; + if (max_uA > chip->max_uA) + max_uA = chip->max_uA; + + if (min_uA > chip->max_uA || max_uA < chip->min_uA) return -EINVAL; selector = DIV_ROUND_UP((min_uA - chip->min_uA) * chip->current_level, -- cgit v1.2.3 From 6dc027c977a0cf34828ebb1742cc58fa9adb0e2f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 4 Jul 2012 12:50:02 +0100 Subject: regulator: arizona-micsupp: Force regulated mode until we have API support It's almost certainly what the user would expect. Signed-off-by: Mark Brown --- drivers/regulator/arizona-micsupp.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index fdd7473ada4a..450a069aa9b6 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -144,6 +144,10 @@ static __devinit int arizona_micsupp_probe(struct platform_device *pdev) else config.init_data = &micsupp->init_data; + /* Default to regulated mode until the API supports bypass */ + regmap_update_bits(arizona->regmap, ARIZONA_MIC_CHARGE_PUMP_1, + ARIZONA_CPMIC_BYPASS, 0); + micsupp->regulator = regulator_register(&arizona_micsupp, &config); if (IS_ERR(micsupp->regulator)) { ret = PTR_ERR(micsupp->regulator); -- cgit v1.2.3 From 9b7e31bbf4bb58b12e11a7f24b7c3e48bbd2f4da Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 4 Jul 2012 13:02:56 -0700 Subject: Input: request threaded-only IRQs with IRQF_ONESHOT Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/as5011.c | 5 +++-- drivers/input/keyboard/mcs_touchkey.c | 3 ++- drivers/input/keyboard/mpr121_touchkey.c | 2 +- drivers/input/keyboard/qt1070.c | 3 ++- drivers/input/keyboard/tca6416-keypad.c | 3 ++- drivers/input/keyboard/tca8418_keypad.c | 2 +- drivers/input/keyboard/tnetv107x-keypad.c | 8 ++++---- drivers/input/misc/ad714x.c | 8 +++++--- drivers/input/misc/dm355evm_keys.c | 3 ++- drivers/input/touchscreen/ad7879.c | 2 +- drivers/input/touchscreen/atmel_mxt_ts.c | 3 ++- drivers/input/touchscreen/bu21013_ts.c | 3 ++- drivers/input/touchscreen/cy8ctmg110_ts.c | 3 ++- drivers/input/touchscreen/intel-mid-touch.c | 2 +- drivers/input/touchscreen/pixcir_i2c_ts.c | 2 +- drivers/input/touchscreen/tnetv107x-ts.c | 2 +- drivers/input/touchscreen/tsc2005.c | 3 ++- 17 files changed, 34 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c index 3063464474bf..feeefcb09e78 100644 --- a/drivers/input/joystick/as5011.c +++ b/drivers/input/joystick/as5011.c @@ -281,7 +281,8 @@ static int __devinit as5011_probe(struct i2c_client *client, error = request_threaded_irq(as5011->button_irq, NULL, as5011_button_interrupt, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "as5011_button", as5011); if (error < 0) { dev_err(&client->dev, @@ -295,7 +296,7 @@ static int __devinit as5011_probe(struct i2c_client *client, error = request_threaded_irq(as5011->axis_irq, NULL, as5011_axis_interrupt, - plat_data->axis_irqflags, + plat_data->axis_irqflags | IRQF_ONESHOT, "as5011_joystick", as5011); if (error) { dev_err(&client->dev, diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c index 64a0ca4c92f3..0d77f6c84950 100644 --- a/drivers/input/keyboard/mcs_touchkey.c +++ b/drivers/input/keyboard/mcs_touchkey.c @@ -178,7 +178,8 @@ static int __devinit mcs_touchkey_probe(struct i2c_client *client, } error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt, - IRQF_TRIGGER_FALLING, client->dev.driver->name, data); + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + client->dev.driver->name, data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); goto err_free_mem; diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c index caa218a51b5a..7613f1cac951 100644 --- a/drivers/input/keyboard/mpr121_touchkey.c +++ b/drivers/input/keyboard/mpr121_touchkey.c @@ -248,7 +248,7 @@ static int __devinit mpr_touchkey_probe(struct i2c_client *client, error = request_threaded_irq(client->irq, NULL, mpr_touchkey_interrupt, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->dev.driver->name, mpr121); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c index 0b7b2f891752..ca68f2992d72 100644 --- a/drivers/input/keyboard/qt1070.c +++ b/drivers/input/keyboard/qt1070.c @@ -201,7 +201,8 @@ static int __devinit qt1070_probe(struct i2c_client *client, msleep(QT1070_RESET_TIME); err = request_threaded_irq(client->irq, NULL, qt1070_interrupt, - IRQF_TRIGGER_NONE, client->dev.driver->name, data); + IRQF_TRIGGER_NONE | IRQF_ONESHOT, + client->dev.driver->name, data); if (err) { dev_err(&client->dev, "fail to request irq\n"); goto err_free_mem; diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c index 3afea3f89718..c355cdde8d22 100644 --- a/drivers/input/keyboard/tca6416-keypad.c +++ b/drivers/input/keyboard/tca6416-keypad.c @@ -278,7 +278,8 @@ static int __devinit tca6416_keypad_probe(struct i2c_client *client, error = request_threaded_irq(chip->irqnum, NULL, tca6416_keys_isr, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, "tca6416-keypad", chip); if (error) { dev_dbg(&client->dev, diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c index 5f87b28b3192..893869b29ed9 100644 --- a/drivers/input/keyboard/tca8418_keypad.c +++ b/drivers/input/keyboard/tca8418_keypad.c @@ -360,7 +360,7 @@ static int __devinit tca8418_keypad_probe(struct i2c_client *client, client->irq = gpio_to_irq(client->irq); error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name, keypad_data); if (error) { dev_dbg(&client->dev, diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c index a4a445fb7020..4c34f21fbe2d 100644 --- a/drivers/input/keyboard/tnetv107x-keypad.c +++ b/drivers/input/keyboard/tnetv107x-keypad.c @@ -227,15 +227,15 @@ static int __devinit keypad_probe(struct platform_device *pdev) goto error_clk; } - error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, 0, - dev_name(dev), kp); + error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, + IRQF_ONESHOT, dev_name(dev), kp); if (error < 0) { dev_err(kp->dev, "Could not allocate keypad press key irq\n"); goto error_irq_press; } - error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, 0, - dev_name(dev), kp); + error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, + IRQF_ONESHOT, dev_name(dev), kp); if (error < 0) { dev_err(kp->dev, "Could not allocate keypad release key irq\n"); goto error_irq_release; diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 0ac75bbad4d6..2e5d5e1de647 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -972,6 +972,7 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, struct ad714x_platform_data *plat_data = dev->platform_data; struct ad714x_chip *ad714x; void *drv_mem; + unsigned long irqflags; struct ad714x_button_drv *bt_drv; struct ad714x_slider_drv *sd_drv; @@ -1162,10 +1163,11 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, alloc_idx++; } + irqflags = plat_data->irqflags ?: IRQF_TRIGGER_FALLING; + irqflags |= IRQF_ONESHOT; + error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread, - plat_data->irqflags ? - plat_data->irqflags : IRQF_TRIGGER_FALLING, - "ad714x_captouch", ad714x); + irqflags, "ad714x_captouch", ad714x); if (error) { dev_err(dev, "can't allocate irq %d\n", ad714x->irq); goto err_unreg_dev; diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c index 35083c6836c3..c1313d8535c3 100644 --- a/drivers/input/misc/dm355evm_keys.c +++ b/drivers/input/misc/dm355evm_keys.c @@ -213,7 +213,8 @@ static int __devinit dm355evm_keys_probe(struct platform_device *pdev) /* REVISIT: flush the event queue? */ status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq, - IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys); + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + dev_name(&pdev->dev), keys); if (status < 0) goto fail2; diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index e2482b40da51..bd4eb4277697 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -597,7 +597,7 @@ struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq, AD7879_TMR(ts->pen_down_acc_interval); err = request_threaded_irq(ts->irq, NULL, ad7879_irq, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, dev_name(dev), ts); if (err) { dev_err(dev, "irq %d busy?\n", ts->irq); diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 42e645062c20..25fd0561a17d 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -1149,7 +1149,8 @@ static int __devinit mxt_probe(struct i2c_client *client, goto err_free_object; error = request_threaded_irq(client->irq, NULL, mxt_interrupt, - pdata->irqflags, client->dev.driver->name, data); + pdata->irqflags | IRQF_ONESHOT, + client->dev.driver->name, data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); goto err_free_object; diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c index f2d03c06c2da..5c487d23f11c 100644 --- a/drivers/input/touchscreen/bu21013_ts.c +++ b/drivers/input/touchscreen/bu21013_ts.c @@ -509,7 +509,8 @@ static int __devinit bu21013_probe(struct i2c_client *client, input_set_drvdata(in_dev, bu21013_data); error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq, - IRQF_TRIGGER_FALLING | IRQF_SHARED, + IRQF_TRIGGER_FALLING | IRQF_SHARED | + IRQF_ONESHOT, DRIVER_TP, bu21013_data); if (error) { dev_err(&client->dev, "request irq %d failed\n", pdata->irq); diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c index 237753ad1031..464f1bf4b61d 100644 --- a/drivers/input/touchscreen/cy8ctmg110_ts.c +++ b/drivers/input/touchscreen/cy8ctmg110_ts.c @@ -251,7 +251,8 @@ static int __devinit cy8ctmg110_probe(struct i2c_client *client, } err = request_threaded_irq(client->irq, NULL, cy8ctmg110_irq_thread, - IRQF_TRIGGER_RISING, "touch_reset_key", ts); + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "touch_reset_key", ts); if (err < 0) { dev_err(&client->dev, "irq %d busy? error %d\n", client->irq, err); diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c index 3cd7a837f82b..cf299377fc49 100644 --- a/drivers/input/touchscreen/intel-mid-touch.c +++ b/drivers/input/touchscreen/intel-mid-touch.c @@ -620,7 +620,7 @@ static int __devinit mrstouch_probe(struct platform_device *pdev) MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0); err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq, - 0, "mrstouch", tsdev); + IRQF_ONESHOT, "mrstouch", tsdev); if (err) { dev_err(tsdev->dev, "unable to allocate irq\n"); goto err_free_mem; diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index 72f6ba3a4709..953b4c105cad 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -165,7 +165,7 @@ static int __devinit pixcir_i2c_ts_probe(struct i2c_client *client, input_set_drvdata(input, tsdata); error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name, tsdata); if (error) { dev_err(&client->dev, "Unable to request touchscreen IRQ.\n"); diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c index 7e7488097359..368d2c6cf780 100644 --- a/drivers/input/touchscreen/tnetv107x-ts.c +++ b/drivers/input/touchscreen/tnetv107x-ts.c @@ -297,7 +297,7 @@ static int __devinit tsc_probe(struct platform_device *pdev) goto error_clk; } - error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, 0, + error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT, dev_name(dev), ts); if (error < 0) { dev_err(ts->dev, "Could not allocate ts irq\n"); diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index b6adeaee9cc5..5ce3fa8ce646 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -650,7 +650,8 @@ static int __devinit tsc2005_probe(struct spi_device *spi) tsc2005_stop_scan(ts); error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread, - IRQF_TRIGGER_RISING, "tsc2005", ts); + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "tsc2005", ts); if (error) { dev_err(&spi->dev, "Failed to request irq, err: %d\n", error); goto err_free_mem; -- cgit v1.2.3 From f8568cbd9459b87d989efdd9c67a9dd9c6ebef3b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 4 Jul 2012 10:03:23 +0800 Subject: regulator: ab3100: Set enable enable_time in regulator_desc Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab3100.c | 37 +++++++++---------------------------- 1 file changed, 9 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 16d420b2f7a8..5f771a86f6e6 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -347,31 +347,6 @@ static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg) return abreg->plfdata->external_voltage; } -static int ab3100_enable_time_regulator(struct regulator_dev *reg) -{ - struct ab3100_regulator *abreg = reg->reg_data; - - /* Per-regulator power on delay from spec */ - switch (abreg->regreg) { - case AB3100_LDO_A: /* Fallthrough */ - case AB3100_LDO_C: /* Fallthrough */ - case AB3100_LDO_D: /* Fallthrough */ - case AB3100_LDO_E: /* Fallthrough */ - case AB3100_LDO_H: /* Fallthrough */ - case AB3100_LDO_K: - return 200; - case AB3100_LDO_F: - return 600; - case AB3100_LDO_G: - return 400; - case AB3100_BUCK: - return 1000; - default: - break; - } - return 0; -} - static int ab3100_get_fixed_voltage_regulator(struct regulator_dev *reg) { return reg->desc->min_uV; @@ -383,7 +358,6 @@ static struct regulator_ops regulator_ops_fixed = { .disable = ab3100_disable_regulator, .is_enabled = ab3100_is_enabled_regulator, .get_voltage = ab3100_get_fixed_voltage_regulator, - .enable_time = ab3100_enable_time_regulator, }; static struct regulator_ops regulator_ops_variable = { @@ -393,7 +367,6 @@ static struct regulator_ops regulator_ops_variable = { .get_voltage = ab3100_get_voltage_regulator, .set_voltage_sel = ab3100_set_voltage_regulator_sel, .list_voltage = regulator_list_voltage_table, - .enable_time = ab3100_enable_time_regulator, }; static struct regulator_ops regulator_ops_variable_sleepable = { @@ -404,7 +377,6 @@ static struct regulator_ops regulator_ops_variable_sleepable = { .set_voltage_sel = ab3100_set_voltage_regulator_sel, .set_suspend_voltage = ab3100_set_suspend_voltage_regulator, .list_voltage = regulator_list_voltage_table, - .enable_time = ab3100_enable_time_regulator, }; /* @@ -430,6 +402,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .min_uV = LDO_A_VOLTAGE, + .enable_time = 200, }, { .name = "LDO_C", @@ -439,6 +412,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .min_uV = LDO_C_VOLTAGE, + .enable_time = 200, }, { .name = "LDO_D", @@ -448,6 +422,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .min_uV = LDO_D_VOLTAGE, + .enable_time = 200, }, { .name = "LDO_E", @@ -457,6 +432,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .volt_table = ldo_e_buck_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 200, }, { .name = "LDO_F", @@ -466,6 +442,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .volt_table = ldo_f_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 600, }, { .name = "LDO_G", @@ -475,6 +452,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .volt_table = ldo_g_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 400, }, { .name = "LDO_H", @@ -484,6 +462,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .volt_table = ldo_h_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 200, }, { .name = "LDO_K", @@ -493,6 +472,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .volt_table = ldo_k_typ_voltages, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 200, }, { .name = "LDO_EXT", @@ -508,6 +488,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages), .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, + .enable_time = 1000, }, }; -- cgit v1.2.3 From 6c3b956b94a6547d26c805db7c505429e54e7573 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 5 Jul 2012 09:38:15 +0800 Subject: regulator: ab3100: Use rdev_get_drvdata() rather than use reg->reg_data driectly Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab3100.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 5f771a86f6e6..182b553059c9 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -155,7 +155,7 @@ ab3100_regulators[AB3100_NUM_REGULATORS] = { */ static int ab3100_enable_regulator(struct regulator_dev *reg) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); int err; u8 regval; @@ -186,7 +186,7 @@ static int ab3100_enable_regulator(struct regulator_dev *reg) static int ab3100_disable_regulator(struct regulator_dev *reg) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); int err; u8 regval; @@ -219,7 +219,7 @@ static int ab3100_disable_regulator(struct regulator_dev *reg) static int ab3100_is_enabled_regulator(struct regulator_dev *reg) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); u8 regval; int err; @@ -236,7 +236,7 @@ static int ab3100_is_enabled_regulator(struct regulator_dev *reg) static int ab3100_get_voltage_regulator(struct regulator_dev *reg) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); u8 regval; int err; @@ -270,7 +270,7 @@ static int ab3100_get_voltage_regulator(struct regulator_dev *reg) static int ab3100_set_voltage_regulator_sel(struct regulator_dev *reg, unsigned selector) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); u8 regval; int err; @@ -299,7 +299,7 @@ static int ab3100_set_voltage_regulator_sel(struct regulator_dev *reg, static int ab3100_set_suspend_voltage_regulator(struct regulator_dev *reg, int uV) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); u8 regval; int err; int bestindex; @@ -342,7 +342,7 @@ static int ab3100_set_suspend_voltage_regulator(struct regulator_dev *reg, */ static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg) { - struct ab3100_regulator *abreg = reg->reg_data; + struct ab3100_regulator *abreg = rdev_get_drvdata(reg); return abreg->plfdata->external_voltage; } -- cgit v1.2.3 From 4706fcab9b064e6077404ccb6c5ca9c188758068 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Thu, 5 Jul 2012 09:28:25 +0530 Subject: regulator: max77686: Add device tree support. This patch device tree support for regulator driver. It uses the parent (mfd's) DT node to parse the regulator data for max77686. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 58 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 57 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 23f956a6c5f2..fc695eb3886e 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -233,6 +234,50 @@ static struct regulator_desc regulators[] = { regulator_desc_buck(9), }; +#ifdef CONFIG_OF +static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev, + struct max77686_platform_data *pdata) +{ + struct device_node *pmic_np, *regulators_np; + struct max77686_regulator_data *rdata; + struct of_regulator_match rmatch; + unsigned int i; + + pmic_np = iodev->dev->of_node; + regulators_np = of_find_node_by_name(pmic_np, "voltage-regulators"); + if (!regulators_np) { + dev_err(iodev->dev, "could not find regulators sub-node\n"); + return -EINVAL; + } + + pdata->num_regulators = ARRAY_SIZE(regulators); + rdata = devm_kzalloc(iodev->dev, sizeof(*rdata) * + pdata->num_regulators, GFP_KERNEL); + if (!rdata) { + dev_err(iodev->dev, + "could not allocate memory for regulator data\n"); + return -ENOMEM; + } + + for (i = 0; i < pdata->num_regulators; i++) { + rmatch.name = regulators[i].name; + rmatch.init_data = NULL; + of_regulator_match(iodev->dev, regulators_np, &rmatch, 1); + rdata[i].initdata = rmatch.init_data; + } + + pdata->regulators = rdata; + + return 0; +} +#else +static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev, + struct max77686_platform_data *pdata) +{ + return 0; +} +#endif /* CONFIG_OF */ + static __devinit int max77686_pmic_probe(struct platform_device *pdev) { struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); @@ -245,7 +290,18 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "%s\n", __func__); - if (!pdata || pdata->num_regulators != MAX77686_REGULATORS) { + if (!pdata) { + dev_err(&pdev->dev, "no platform data found for regulator\n"); + return -ENODEV; + } + + if (iodev->dev->of_node) { + ret = max77686_pmic_dt_parse_pdata(iodev, pdata); + if (ret) + return ret; + } + + if (pdata->num_regulators != MAX77686_REGULATORS) { dev_err(&pdev->dev, "Invalid initial data for regulator's initialiation\n"); return -EINVAL; -- cgit v1.2.3 From 2e2070c85aa19f6c5bb3642a1429abf42f101e8d Mon Sep 17 00:00:00 2001 From: Alessandro Rubini Date: Sun, 27 May 2012 22:55:41 +0200 Subject: gpio-sta2x11: don't use pdata if null If there is no platform data available, the driver shouldn't use the pointer or it will oops. Since things will mostly work nonetheless, (the BIOS may have set up the pins properly), I'd better not fail the probe even in this case. Signed-off-by: Alessandro Rubini Acked-by: Giancarlo Asnaghi Signed-off-by: Linus Walleij --- drivers/gpio/gpio-sta2x11.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c index 38416be8ba11..6064fb376e11 100644 --- a/drivers/gpio/gpio-sta2x11.c +++ b/drivers/gpio/gpio-sta2x11.c @@ -383,8 +383,9 @@ static int __devinit gsta_probe(struct platform_device *dev) } spin_lock_init(&chip->lock); gsta_gpio_setup(chip); - for (i = 0; i < GSTA_NR_GPIO; i++) - gsta_set_config(chip, i, gpio_pdata->pinconfig[i]); + if (gpio_pdata) + for (i = 0; i < GSTA_NR_GPIO; i++) + gsta_set_config(chip, i, gpio_pdata->pinconfig[i]); /* 384 was used in previous code: be compatible for other drivers */ err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE); -- cgit v1.2.3 From afcc0f8c174ff34305146878c40e7dcc72fcbbdf Mon Sep 17 00:00:00 2001 From: Christian Dietrich Date: Thu, 31 May 2012 13:12:57 +0200 Subject: gpio/msm_v1: CONFIG_GPIO_MSM_V1 is only available on three SoCs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The feature GPIO_MSM_V1 is only available on three SoCs. On all other MSM SoCs the INT_GPIO_GROUP{1,2} is undeclared, but Kconfig does allow such configurations. Therefore the produced configuration is valid, but does not compile. The problem is fixed by adding the missing Kconfig constraints. drivers/gpio/gpio-msm-v1.c: In function ‘msm_init_gpio’: drivers/gpio/gpio-msm-v1.c:629:26: error: 'INT_GPIO_GROUP1' undeclared drivers/gpio/gpio-msm-v1.c:630:26: error: 'INT_GPIO_GROUP2' undeclared Signed-off-by: Christian Dietrich Signed-off-by: Linus Walleij --- drivers/gpio/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index c4067d0141f7..542f0c04b695 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -136,7 +136,7 @@ config GPIO_MPC8XXX config GPIO_MSM_V1 tristate "Qualcomm MSM GPIO v1" - depends on GPIOLIB && ARCH_MSM + depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) help Say yes here to support the GPIO interface on ARM v6 based Qualcomm MSM chips. Most of the pins on the MSM can be -- cgit v1.2.3 From 8cd578b6e28693f357867a77598a88ef3deb6b39 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:07:56 +0800 Subject: gpiolib: wm8994: Pay attention to the value set when enabling as output Not paying attention to the value being set is a bad thing because it means that we'll not set the hardware up to reflect what was requested. Not setting the hardware up to reflect what was requested means that the caller won't get the results they wanted. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij --- drivers/gpio/gpio-wm8994.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c index 92ea5350dfe9..aa61ad2fcaaa 100644 --- a/drivers/gpio/gpio-wm8994.c +++ b/drivers/gpio/gpio-wm8994.c @@ -89,8 +89,11 @@ static int wm8994_gpio_direction_out(struct gpio_chip *chip, struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip); struct wm8994 *wm8994 = wm8994_gpio->wm8994; + if (value) + value = WM8994_GPN_LVL; + return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, - WM8994_GPN_DIR, 0); + WM8994_GPN_DIR | WM8994_GPN_LVL, value); } static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- cgit v1.2.3 From 3996bfc787a3b3d7c7ad97b7519247f9f2ac4068 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 7 Jun 2012 17:56:09 -0600 Subject: gpio: export devm_gpio_request_one Without this, modules can't use this API, leading to build failures. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/gpio/devres.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c index 9e9947cb86a3..1077754f8289 100644 --- a/drivers/gpio/devres.c +++ b/drivers/gpio/devres.c @@ -98,6 +98,7 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio, return 0; } +EXPORT_SYMBOL(devm_gpio_request_one); /** * devm_gpio_free - free an interrupt -- cgit v1.2.3 From 6be5bfc3bf0d31a70745a52e69f7f46de974193f Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 5 Jul 2012 18:12:01 +0530 Subject: regulator: fixed: dt: support for input supply Add support for input supply in DT parsing of node. The input supply will be provided by the property "vin-supply" in the regulator node. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/fixed-regulator.txt | 2 ++ drivers/regulator/fixed.c | 19 ++++++++++++++++++- include/linux/regulator/fixed.h | 2 ++ 3 files changed, 22 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt index 2f5b6b1ba15f..4fae41d54798 100644 --- a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt @@ -10,6 +10,7 @@ Optional properties: If this property is missing, the default assumed is Active low. - gpio-open-drain: GPIO is open drain type. If this property is missing then default assumption is false. +-vin-supply: Input supply name. Any property defined as part of the core regulator binding, defined in regulator.txt, can also be used. @@ -29,4 +30,5 @@ Example: enable-active-high; regulator-boot-on; gpio-open-drain; + vin-supply = <&parent_reg>; }; diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index 1a0b17e8d8a9..185468c4d38f 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -102,6 +102,9 @@ of_get_fixed_voltage_config(struct device *dev) if (of_find_property(np, "gpio-open-drain", NULL)) config->gpio_is_open_drain = true; + if (of_find_property(np, "vin-supply", NULL)) + config->input_supply = "vin"; + return config; } @@ -169,6 +172,17 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) drvdata->desc.enable_time = config->startup_delay; + if (config->input_supply) { + drvdata->desc.supply_name = kstrdup(config->input_supply, + GFP_KERNEL); + if (!drvdata->desc.supply_name) { + dev_err(&pdev->dev, + "Failed to allocate input supply\n"); + ret = -ENOMEM; + goto err_name; + } + } + if (config->microvolts) drvdata->desc.n_voltages = 1; @@ -202,7 +216,7 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) if (IS_ERR(drvdata->dev)) { ret = PTR_ERR(drvdata->dev); dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret); - goto err_name; + goto err_input; } platform_set_drvdata(pdev, drvdata); @@ -212,6 +226,8 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) return 0; +err_input: + kfree(drvdata->desc.supply_name); err_name: kfree(drvdata->desc.name); err: @@ -223,6 +239,7 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev) struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev); regulator_unregister(drvdata->dev); + kfree(drvdata->desc.supply_name); kfree(drvdata->desc.name); return 0; diff --git a/include/linux/regulator/fixed.h b/include/linux/regulator/fixed.h index f83f7440b488..d6c24c53adf4 100644 --- a/include/linux/regulator/fixed.h +++ b/include/linux/regulator/fixed.h @@ -22,6 +22,7 @@ struct regulator_init_data; /** * struct fixed_voltage_config - fixed_voltage_config structure * @supply_name: Name of the regulator supply + * @input_supply: Name of the input regulator supply * @microvolts: Output voltage of regulator * @gpio: GPIO to use for enable control * set to -EINVAL if not used @@ -46,6 +47,7 @@ struct regulator_init_data; */ struct fixed_voltage_config { const char *supply_name; + const char *input_supply; int microvolts; int gpio; unsigned startup_delay; -- cgit v1.2.3 From 33a4e985bab25d6753b52d1322b4e2fff706dd4f Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 6 Jun 2012 11:49:23 +0200 Subject: gpio/mxc: make irqs work for fsl,imx21-gpio devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The chained handler was set for the platform device with id == 0. When the gpio devices are instantiated by a device tree, all have id == -1 and so the handler was unset resulting in unusable gpio irqs on i.MX21 and i.MX27 (when using oftree). Acked-by: Shawn Guo Cc: Grant Likely Signed-off-by: Uwe Kleine-König Signed-off-by: Linus Walleij --- drivers/gpio/gpio-mxc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index c337143b18f8..c89c4c1e668d 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -398,10 +398,12 @@ static int __devinit mxc_gpio_probe(struct platform_device *pdev) writel(~0, port->base + GPIO_ISR); if (mxc_gpio_hwtype == IMX21_GPIO) { - /* setup one handler for all GPIO interrupts */ - if (pdev->id == 0) - irq_set_chained_handler(port->irq, - mx2_gpio_irq_handler); + /* + * Setup one handler for all GPIO interrupts. Actually setting + * the handler is needed only once, but doing it for every port + * is more robust and easier. + */ + irq_set_chained_handler(port->irq, mx2_gpio_irq_handler); } else { /* setup one handler for each entry */ irq_set_chained_handler(port->irq, mx3_gpio_irq_handler); -- cgit v1.2.3 From 626f9914a371e22f15135f67db6c2aa64adbdacb Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 4 Jul 2012 20:36:45 +0530 Subject: gpio: tps65910: initialize of_node of gpio_chip Initialize the gpio chip's of_node to the device's node to work with DT based system. Signed-off-by: Laxman Dewangan Signed-off-by: Linus Walleij --- drivers/gpio/gpio-tps65910.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c index c1ad2884f2ed..0749f9630869 100644 --- a/drivers/gpio/gpio-tps65910.c +++ b/drivers/gpio/gpio-tps65910.c @@ -149,6 +149,7 @@ static int __devinit tps65910_gpio_probe(struct platform_device *pdev) tps65910_gpio->gpio_chip.set = tps65910_gpio_set; tps65910_gpio->gpio_chip.get = tps65910_gpio_get; tps65910_gpio->gpio_chip.dev = &pdev->dev; + tps65910_gpio->gpio_chip.of_node = tps65910->dev->of_node; if (pdata && pdata->gpio_base) tps65910_gpio->gpio_chip.base = pdata->gpio_base; else -- cgit v1.2.3 From 8e16e33c168a6efd0c9f7fa9dd4c1e1db9a74553 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Mon, 2 Jul 2012 19:53:55 +0200 Subject: USB: option: add ZTE MF60 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Switches into a composite device by ejecting the initial driver CD. The four interfaces are: QCDM, AT, QMI/wwan and mass storage. Let this driver manage the two serial interfaces: T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 28 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=19d2 ProdID=1402 Rev= 0.00 S: Manufacturer=ZTE,Incorporated S: Product=ZTE WCDMA Technologies MSM S: SerialNumber=xxxxx C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index adf8ce72be50..167aed8b2488 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -554,6 +554,10 @@ static const struct option_blacklist_info net_intf1_blacklist = { .reserved = BIT(1), }; +static const struct option_blacklist_info net_intf2_blacklist = { + .reserved = BIT(2), +}; + static const struct option_blacklist_info net_intf3_blacklist = { .reserved = BIT(3), }; @@ -1099,6 +1103,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1298, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1299, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1300, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1402, 0xff, 0xff, 0xff), + .driver_info = (kernel_ulong_t)&net_intf2_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) }, -- cgit v1.2.3 From aacef9c561a693341566a6850c451ce3df68cb9a Mon Sep 17 00:00:00 2001 From: Gaosen Zhang Date: Thu, 5 Jul 2012 21:49:00 +0800 Subject: USB: option: Add MEDIATEK product ids Signed-off-by: Gaosen Zhang Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 167aed8b2488..417ab1b0aa30 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -497,6 +497,15 @@ static void option_instat_callback(struct urb *urb); /* MediaTek products */ #define MEDIATEK_VENDOR_ID 0x0e8d +#define MEDIATEK_PRODUCT_DC_1COM 0x00a0 +#define MEDIATEK_PRODUCT_DC_4COM 0x00a5 +#define MEDIATEK_PRODUCT_DC_5COM 0x00a4 +#define MEDIATEK_PRODUCT_7208_1COM 0x7101 +#define MEDIATEK_PRODUCT_7208_2COM 0x7102 +#define MEDIATEK_PRODUCT_FP_1COM 0x0003 +#define MEDIATEK_PRODUCT_FP_2COM 0x0023 +#define MEDIATEK_PRODUCT_FPDC_1COM 0x0043 +#define MEDIATEK_PRODUCT_FPDC_2COM 0x0033 /* Cellient products */ #define CELLIENT_VENDOR_ID 0x2692 @@ -1246,6 +1255,17 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x02, 0x01) }, /* MediaTek MT6276M modem & app port */ + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_1COM, 0x02, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_2COM, 0x02, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_2COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_2COM, 0x0a, 0x00, 0x00) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, { } /* Terminating entry */ }; -- cgit v1.2.3 From b7d28e32c93801d60c1a7a817f774a02b7bdde43 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 2 Jul 2012 12:34:24 +0200 Subject: USB: metro-usb: fix tty_flip_buffer_push use Do not set low_latency flag at open as tty_flip_buffer_push must not be called in IRQ context with low_latency set. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/metro-usb.c | 8 -------- 1 file changed, 8 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 81423f7361db..d47eb06fe463 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -222,14 +222,6 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port) metro_priv->throttled = 0; spin_unlock_irqrestore(&metro_priv->lock, flags); - /* - * Force low_latency on so that our tty_push actually forces the data - * through, otherwise it is scheduled, and with high data rates (like - * with OHCI) data can get lost. - */ - if (tty) - tty->low_latency = 1; - /* Clear the urb pipe. */ usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe); -- cgit v1.2.3 From b086b6b10d9f182cd8d2f0dcfd7fd11edba93fc9 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Mon, 2 Jul 2012 10:33:14 +0200 Subject: USB: cdc-wdm: fix lockup on error in wdm_read MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clear the WDM_READ flag on empty reads to avoid running forever in an infinite tight loop, causing lockups: Jul 1 21:58:11 nemi kernel: [ 3658.898647] qmi_wwan 2-1:1.2: Unexpected error -71 Jul 1 21:58:36 nemi kernel: [ 3684.072021] BUG: soft lockup - CPU#0 stuck for 23s! [qmi.pl:12235] Jul 1 21:58:36 nemi kernel: [ 3684.072212] CPU 0 Jul 1 21:58:36 nemi kernel: [ 3684.072355] Jul 1 21:58:36 nemi kernel: [ 3684.072367] Pid: 12235, comm: qmi.pl Tainted: P O 3.5.0-rc2+ #13 LENOVO 2776LEG/2776LEG Jul 1 21:58:36 nemi kernel: [ 3684.072383] RIP: 0010:[] [] spin_unlock_irq+0x8/0xc [cdc_wdm] Jul 1 21:58:36 nemi kernel: [ 3684.072388] RSP: 0018:ffff88022dca1e70 EFLAGS: 00000282 Jul 1 21:58:36 nemi kernel: [ 3684.072393] RAX: ffff88022fc3f650 RBX: ffffffff811c56f7 RCX: 00000001000ce8c1 Jul 1 21:58:36 nemi kernel: [ 3684.072398] RDX: 0000000000000010 RSI: 000000000267d810 RDI: ffff88022fc3f650 Jul 1 21:58:36 nemi kernel: [ 3684.072403] RBP: ffff88022dca1eb0 R08: ffffffffa063578e R09: 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072407] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000002 Jul 1 21:58:36 nemi kernel: [ 3684.072412] R13: 0000000000000246 R14: ffffffff00000002 R15: ffff8802281d8c88 Jul 1 21:58:36 nemi kernel: [ 3684.072418] FS: 00007f666a260700(0000) GS:ffff88023bc00000(0000) knlGS:0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 1 21:58:36 nemi kernel: [ 3684.072428] CR2: 000000000270d9d8 CR3: 000000022e865000 CR4: 00000000000007f0 Jul 1 21:58:36 nemi kernel: [ 3684.072433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072438] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 1 21:58:36 nemi kernel: [ 3684.072444] Process qmi.pl (pid: 12235, threadinfo ffff88022dca0000, task ffff88022ff76380) Jul 1 21:58:36 nemi kernel: [ 3684.072448] Stack: Jul 1 21:58:36 nemi kernel: [ 3684.072458] ffffffffa063592e 0000000100020000 ffff88022fc3f650 ffff88022fc3f6a8 Jul 1 21:58:36 nemi kernel: [ 3684.072466] 0000000000000200 0000000100000000 000000000267d810 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072475] 0000000000000000 ffff880212cfb6d0 0000000000000200 ffff880212cfb6c0 Jul 1 21:58:36 nemi kernel: [ 3684.072479] Call Trace: Jul 1 21:58:36 nemi kernel: [ 3684.072489] [] ? wdm_read+0x1a0/0x263 [cdc_wdm] Jul 1 21:58:36 nemi kernel: [ 3684.072500] [] ? vfs_read+0xa1/0xfb Jul 1 21:58:36 nemi kernel: [ 3684.072509] [] ? alarm_setitimer+0x35/0x64 Jul 1 21:58:36 nemi kernel: [ 3684.072517] [] ? sys_read+0x45/0x6e Jul 1 21:58:36 nemi kernel: [ 3684.072525] [] ? system_call_fastpath+0x16/0x1b Jul 1 21:58:36 nemi kernel: [ 3684.072557] Code: <66> 66 90 c3 83 ff ed 89 f8 74 16 7f 06 83 ff a1 75 0a c3 83 ff f4 The WDM_READ flag is normally cleared by wdm_int_callback before resubmitting the read urb, and set by wdm_in_callback when this urb returns with data or an error. But a crashing device may cause both a read error and cancelling all urbs. Make sure that the flag is cleared by wdm_read if the buffer is empty. We don't clear the flag on errors, as there may be pending data in the buffer which should be processed. The flag will instead be cleared on the next wdm_read call. Cc: stable Signed-off-by: Bjørn Mork Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 8fd398dffced..ee469274a3fe 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -500,6 +500,8 @@ retry: goto retry; } if (!desc->reslength) { /* zero length read */ + dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__); + clear_bit(WDM_READ, &desc->flags); spin_unlock_irq(&desc->iuspin); goto retry; } -- cgit v1.2.3 From 48f8b641297df49021093763a3271119a84990a2 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jun 2012 19:08:25 +0300 Subject: mtd: cafe_nand: fix an & vs | mistake The intent here was clearly to set result to true if the 0x40000000 flag was set. But instead there was a | vs & typo and we always set result to true. Artem: check the spec at wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf and this fix looks correct. Signed-off-by: Dan Carpenter Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/cafe_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 41371ba1a811..f3f6cfedd69e 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -102,7 +102,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int cafe_device_ready(struct mtd_info *mtd) { struct cafe_priv *cafe = mtd->priv; - int result = !!(cafe_readl(cafe, NAND_STATUS) | 0x40000000); + int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); cafe_writel(cafe, irqs, NAND_IRQ); -- cgit v1.2.3 From 096bcc231fd263bc8df215f0d616b08e3696c6db Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 29 May 2012 10:16:09 +0200 Subject: mtd: mxc_nand: use 32bit copy functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The following commit changes the function used to copy from/to the hardware buffer to memcpy_[from|to]io. This does not work since the hardware cannot handle the byte accesses used by these functions. Instead of reverting this patch introduce 32bit correspondents of these functions. | commit 5775ba36ea9c760c2d7e697dac04f2f7fc95aa62 | Author: Uwe Kleine-König | Date: Tue Apr 24 10:05:22 2012 +0200 | | mtd: mxc_nand: fix several sparse warnings about incorrect address space | | Signed-off-by: Uwe Kleine-König | Signed-off-by: Artem Bityutskiy Signed-off-by: Sascha Hauer Cc: Uwe Kleine-König Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/mxc_nand.c | 37 +++++++++++++++++++++++++++++-------- 1 file changed, 29 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index c58e6a93f445..6acc790c2fbb 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -273,6 +273,26 @@ static struct nand_ecclayout nandv2_hw_eccoob_4k = { static const char *part_probes[] = { "RedBoot", "cmdlinepart", "ofpart", NULL }; +static void memcpy32_fromio(void *trg, const void __iomem *src, size_t size) +{ + int i; + u32 *t = trg; + const __iomem u32 *s = src; + + for (i = 0; i < (size >> 2); i++) + *t++ = __raw_readl(s++); +} + +static void memcpy32_toio(void __iomem *trg, const void *src, int size) +{ + int i; + u32 __iomem *t = trg; + const u32 *s = src; + + for (i = 0; i < (size >> 2); i++) + __raw_writel(*s++, t++); +} + static int check_int_v3(struct mxc_nand_host *host) { uint32_t tmp; @@ -519,7 +539,7 @@ static void send_read_id_v3(struct mxc_nand_host *host) wait_op_done(host, true); - memcpy_fromio(host->data_buf, host->main_area0, 16); + memcpy32_fromio(host->data_buf, host->main_area0, 16); } /* Request the NANDFC to perform a read of the NAND device ID. */ @@ -535,7 +555,7 @@ static void send_read_id_v1_v2(struct mxc_nand_host *host) /* Wait for operation to complete */ wait_op_done(host, true); - memcpy_fromio(host->data_buf, host->main_area0, 16); + memcpy32_fromio(host->data_buf, host->main_area0, 16); if (this->options & NAND_BUSWIDTH_16) { /* compress the ID info */ @@ -797,16 +817,16 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom) if (bfrom) { for (i = 0; i < n - 1; i++) - memcpy_fromio(d + i * j, s + i * t, j); + memcpy32_fromio(d + i * j, s + i * t, j); /* the last section */ - memcpy_fromio(d + i * j, s + i * t, mtd->oobsize - i * j); + memcpy32_fromio(d + i * j, s + i * t, mtd->oobsize - i * j); } else { for (i = 0; i < n - 1; i++) - memcpy_toio(&s[i * t], &d[i * j], j); + memcpy32_toio(&s[i * t], &d[i * j], j); /* the last section */ - memcpy_toio(&s[i * t], &d[i * j], mtd->oobsize - i * j); + memcpy32_toio(&s[i * t], &d[i * j], mtd->oobsize - i * j); } } @@ -1070,7 +1090,8 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, host->devtype_data->send_page(mtd, NFC_OUTPUT); - memcpy_fromio(host->data_buf, host->main_area0, mtd->writesize); + memcpy32_fromio(host->data_buf, host->main_area0, + mtd->writesize); copy_spare(mtd, true); break; @@ -1086,7 +1107,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, break; case NAND_CMD_PAGEPROG: - memcpy_toio(host->main_area0, host->data_buf, mtd->writesize); + memcpy32_toio(host->main_area0, host->data_buf, mtd->writesize); copy_spare(mtd, false); host->devtype_data->send_page(mtd, NFC_INPUT); host->devtype_data->send_cmd(host, command, true); -- cgit v1.2.3 From 6023813a2d5949ba368e7df464f2ccb649719777 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 26 Jun 2012 17:26:16 +0200 Subject: mtd: gpmi-nand: fix read page when reading to vmalloced area The gpmi-nand driver uses virt_addr_valid() to check whether a buffer is suitable for dma. If it's not, a driver allocated buffer is used instead. Then after a page read the driver allocated buffer must be copied to the user supplied buffer. This does not happen since commit 7725cc85932bd02dd12c23108e0ef748c551ccba. This patch fixes the issue. The bug is encountered with UBI which uses a vmalloced buffer for the volume table. Signed-off-by: Sascha Hauer Tested-by: snijsure@grid-net.com Acked-by: Huang Shijie Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index a05b7b444d4f..a6cad5caba78 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -920,12 +920,12 @@ static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, */ memset(chip->oob_poi, ~0, mtd->oobsize); chip->oob_poi[0] = ((uint8_t *) auxiliary_virt)[0]; - - read_page_swap_end(this, buf, mtd->writesize, - this->payload_virt, this->payload_phys, - nfc_geo->payload_size, - payload_virt, payload_phys); } + + read_page_swap_end(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + payload_virt, payload_phys); exit_nfc: return ret; } -- cgit v1.2.3 From 596fd46268634082314b3af1ded4612e1b7f3f03 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Wed, 16 May 2012 16:21:52 -0300 Subject: mtd: nandsim: don't open code a do_div helper We don't need to open code the divide function, just use div_u64 that already exists and do the same job. While this is a straightforward clean up, there is more to that, the real motivation for this. While building on a cross compiling environment in armel, using gcc 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5), I was getting the following build error: ERROR: "__aeabi_uldivmod" [drivers/mtd/nand/nandsim.ko] undefined! After investigating with objdump and hand built assembly version generated with the compiler, I narrowed __aeabi_uldivmod as being generated from the divide function. When nandsim.c is built with -fno-inline-functions-called-once, that happens when CONFIG_DEBUG_SECTION_MISMATCH is enabled, the do_div optimization in arch/arm/include/asm/div64.h doesn't work as expected with the open coded divide function: even if the do_div we are using doesn't have a constant divisor, the compiler still includes the else parts of the optimized do_div macro, and translates the divisions there to use __aeabi_uldivmod, instead of only calling __do_div_asm -> __do_div64 and optimizing/removing everything else out. So to reproduce, gcc 4.6 plus CONFIG_DEBUG_SECTION_MISMATCH=y and CONFIG_MTD_NAND_NANDSIM=m should do it, building on armel. After this change, the compiler does the intended thing even with -fno-inline-functions-called-once, and optimizes out as expected the constant handling in the optimized do_div on arm. As this also avoids a build issue, I'm marking for Stable, as I think is applicable for this case. Signed-off-by: Herton Ronaldo Krzesinski Cc: stable@vger.kernel.org Acked-by: Nicolas Pitre Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/nandsim.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 6cc8fbfabb8e..cf0cd3146817 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -28,7 +28,7 @@ #include #include #include -#include +#include #include #include #include @@ -546,12 +546,6 @@ static char *get_partition_name(int i) return kstrdup(buf, GFP_KERNEL); } -static uint64_t divide(uint64_t n, uint32_t d) -{ - do_div(n, d); - return n; -} - /* * Initialize the nandsim structure. * @@ -580,7 +574,7 @@ static int init_nandsim(struct mtd_info *mtd) ns->geom.oobsz = mtd->oobsize; ns->geom.secsz = mtd->erasesize; ns->geom.pgszoob = ns->geom.pgsz + ns->geom.oobsz; - ns->geom.pgnum = divide(ns->geom.totsz, ns->geom.pgsz); + ns->geom.pgnum = div_u64(ns->geom.totsz, ns->geom.pgsz); ns->geom.totszoob = ns->geom.totsz + (uint64_t)ns->geom.pgnum * ns->geom.oobsz; ns->geom.secshift = ffs(ns->geom.secsz) - 1; ns->geom.pgshift = chip->page_shift; @@ -921,7 +915,7 @@ static int setup_wear_reporting(struct mtd_info *mtd) if (!rptwear) return 0; - wear_eb_count = divide(mtd->size, mtd->erasesize); + wear_eb_count = div_u64(mtd->size, mtd->erasesize); mem = wear_eb_count * sizeof(unsigned long); if (mem / sizeof(unsigned long) != wear_eb_count) { NS_ERR("Too many erase blocks for wear reporting\n"); -- cgit v1.2.3 From 19228a6a59250d414824ae07e06ad057a404ea3e Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Fri, 6 Jul 2012 14:13:12 +0530 Subject: regulator: tps65910: add support for input supply There is multiple voltage input pins on device which takes the voltage input for different voltage regulator. Support to configure the voltage input supplied by different regulator for each regulators. Signed-off-by: Laxman Dewangan Acked-by: Stephen Warren Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/mfd/tps65910.txt | 25 +++++++++++++++ drivers/regulator/tps65910-regulator.c | 36 ++++++++++++++++++++++ include/linux/mfd/tps65910.h | 2 ++ 3 files changed, 63 insertions(+) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt index b51d2066599c..31be5a3d9f76 100644 --- a/Documentation/devicetree/bindings/mfd/tps65910.txt +++ b/Documentation/devicetree/bindings/mfd/tps65910.txt @@ -32,6 +32,28 @@ Optional properties: comparator. (see VMBCH_VSEL in TPS65910 datasheet) - ti,en-gpio-sleep: enable sleep control for gpios There should be 9 entries here, one for each gpio. +- xxx-supply: Input voltage supply regulator. + Missing of these properties will be assume as there is no supply regulator + for that input pins and always powered on. + The valid input supply properties are: + tps65910: + vcc1-supply: VDD1 input. + vcc2-supply: VDD2 input. + vcc3-supply: VAUX33 and VMMC input. + vcc4-supply: VAUX1 and VAUX2 input. + vcc5-supply: VPLL and VDAC input. + vcc6-supply: VDIG1 and VDIG2 input. + vcc7-supply: VRTC input. + vccio-supply: VIO input. + tps65911: + vcc1-supply: VDD1 input. + vcc2-supply: VDD2 input. + vcc3-supply: LDO6, LDO7 and LDO8 input. + vcc4-supply: LDO5 input. + vcc5-supply: LDO3 and LDO4 input. + vcc6-supply: LDO1 and LDO2 input. + vcc7-supply: VRTC input. + vccio-supply: VIO input. Regulator Optional properties: - ti,regulator-ext-sleep-control: enable external sleep @@ -57,6 +79,9 @@ Example: ti,en-gpio-sleep = <0 0 1 0 0 0 0 0 0>; + vcc7-supply = <®_parent>; + vcc1-supply = <®_parent>; + regulators { #address-cells = <1>; #size-cells = <0>; diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index a534e0872006..e319d963fee6 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -85,6 +85,7 @@ static const unsigned int VMMC_VSEL_table[] = { struct tps_info { const char *name; + const char *vin_name; u8 n_voltages; const unsigned int *voltage_table; int enable_time_us; @@ -93,20 +94,24 @@ struct tps_info { static struct tps_info tps65910_regs[] = { { .name = "vrtc", + .vin_name = "vcc7", .enable_time_us = 2200, }, { .name = "vio", + .vin_name = "vccio", .n_voltages = ARRAY_SIZE(VIO_VSEL_table), .voltage_table = VIO_VSEL_table, .enable_time_us = 350, }, { .name = "vdd1", + .vin_name = "vcc1", .enable_time_us = 350, }, { .name = "vdd2", + .vin_name = "vcc2", .enable_time_us = 350, }, { @@ -117,48 +122,56 @@ static struct tps_info tps65910_regs[] = { }, { .name = "vdig1", + .vin_name = "vcc6", .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table), .voltage_table = VDIG1_VSEL_table, .enable_time_us = 100, }, { .name = "vdig2", + .vin_name = "vcc6", .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table), .voltage_table = VDIG2_VSEL_table, .enable_time_us = 100, }, { .name = "vpll", + .vin_name = "vcc5", .n_voltages = ARRAY_SIZE(VPLL_VSEL_table), .voltage_table = VPLL_VSEL_table, .enable_time_us = 100, }, { .name = "vdac", + .vin_name = "vcc5", .n_voltages = ARRAY_SIZE(VDAC_VSEL_table), .voltage_table = VDAC_VSEL_table, .enable_time_us = 100, }, { .name = "vaux1", + .vin_name = "vcc4", .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table), .voltage_table = VAUX1_VSEL_table, .enable_time_us = 100, }, { .name = "vaux2", + .vin_name = "vcc4", .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table), .voltage_table = VAUX2_VSEL_table, .enable_time_us = 100, }, { .name = "vaux33", + .vin_name = "vcc3", .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table), .voltage_table = VAUX33_VSEL_table, .enable_time_us = 100, }, { .name = "vmmc", + .vin_name = "vcc3", .n_voltages = ARRAY_SIZE(VMMC_VSEL_table), .voltage_table = VMMC_VSEL_table, .enable_time_us = 100, @@ -168,21 +181,25 @@ static struct tps_info tps65910_regs[] = { static struct tps_info tps65911_regs[] = { { .name = "vrtc", + .vin_name = "vcc7", .enable_time_us = 2200, }, { .name = "vio", + .vin_name = "vccio", .n_voltages = ARRAY_SIZE(VIO_VSEL_table), .voltage_table = VIO_VSEL_table, .enable_time_us = 350, }, { .name = "vdd1", + .vin_name = "vcc1", .n_voltages = 73, .enable_time_us = 350, }, { .name = "vdd2", + .vin_name = "vcc2", .n_voltages = 73, .enable_time_us = 350, }, @@ -193,41 +210,49 @@ static struct tps_info tps65911_regs[] = { }, { .name = "ldo1", + .vin_name = "vcc6", .n_voltages = 47, .enable_time_us = 420, }, { .name = "ldo2", + .vin_name = "vcc6", .n_voltages = 47, .enable_time_us = 420, }, { .name = "ldo3", + .vin_name = "vcc5", .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo4", + .vin_name = "vcc5", .n_voltages = 47, .enable_time_us = 230, }, { .name = "ldo5", + .vin_name = "vcc4", .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo6", + .vin_name = "vcc3", .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo7", + .vin_name = "vcc3", .n_voltages = 24, .enable_time_us = 230, }, { .name = "ldo8", + .vin_name = "vcc3", .n_voltages = 24, .enable_time_us = 230, }, @@ -1013,6 +1038,9 @@ static struct tps65910_board *tps65910_parse_dt_reg_data( *tps65910_reg_matches = matches; for (idx = 0; idx < count; idx++) { + struct tps_info *info = matches[idx].driver_data; + char in_supply[32]; /* 32 is max size of property name */ + if (!matches[idx].init_data || !matches[idx].of_node) continue; @@ -1023,6 +1051,13 @@ static struct tps65910_board *tps65910_parse_dt_reg_data( "ti,regulator-ext-sleep-control", &prop); if (!ret) pmic_plat_data->regulator_ext_sleep_control[idx] = prop; + + if (info->vin_name) { + snprintf(in_supply, 32, "%s-supply", info->vin_name); + if (of_find_property(np, in_supply, 0)) + pmic_plat_data->input_supply[idx] = + info->vin_name; + } } return pmic_plat_data; @@ -1126,6 +1161,7 @@ static __devinit int tps65910_probe(struct platform_device *pdev) pmic->info[i] = info; pmic->desc[i].name = info->name; + pmic->desc[i].supply_name = pmic_plat_data->input_supply[i]; pmic->desc[i].id = i; pmic->desc[i].n_voltages = info->n_voltages; pmic->desc[i].enable_time = info->enable_time_us; diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h index dd8dc0a6c462..c5f806011b32 100644 --- a/include/linux/mfd/tps65910.h +++ b/include/linux/mfd/tps65910.h @@ -799,6 +799,7 @@ struct tps65910_sleep_keepon_data { /** * struct tps65910_board * Board platform data may be used to initialize regulators. + * @input_supply: Name of input supply regulator. */ struct tps65910_board { @@ -811,6 +812,7 @@ struct tps65910_board { struct tps65910_sleep_keepon_data *slp_keepon; bool en_gpio_sleep[TPS6591X_MAX_NUM_GPIO]; unsigned long regulator_ext_sleep_control[TPS65910_NUM_REGS]; + const char *input_supply[TPS65910_NUM_REGS]; struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS]; }; -- cgit v1.2.3 From d1ef065d43476fd0e245cad2ef1d226e7cb6324b Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Fri, 6 Jul 2012 14:50:08 +0530 Subject: regulator: max77686: Initialise rmatch.of_node to NULL. Now of_regulator_match() returns without finding the match if match->of_node is not NULL. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Mark Brown --- drivers/regulator/max77686.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index fc695eb3886e..c564af6f05a3 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -262,6 +262,7 @@ static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev, for (i = 0; i < pdata->num_regulators; i++) { rmatch.name = regulators[i].name; rmatch.init_data = NULL; + rmatch.of_node = NULL; of_regulator_match(iodev->dev, regulators_np, &rmatch, 1); rdata[i].initdata = rmatch.init_data; } -- cgit v1.2.3 From 84774e615749acfce6b2f679b95924dffb5f5de1 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 5 Jul 2012 15:15:36 +0100 Subject: of: address: Don't fail a lookup just because a node has no reg property Sometimes it doesn't make any sense for a node to have an address. In this case device lookup will always be unsuccessful because we currently assume every node will have a reg property. This patch changes the semantics so that the resource address and the lookup address will only be compared if one exists. Things like AUXDATA() rely on of_dev_lookup to return the lookup entry of a particular device in order to do things like apply platform_data to a device. However, this is currently broken for nodes which do not have a reg property, meaning that platform_data can not be passed in those cases. Acked-by: Rob Herring Acked-by: Arnd Bergmann Signed-off-by: Lee Jones --- drivers/of/platform.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 343ad29e211c..96004807dd28 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -317,10 +317,9 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l for(; lookup->compatible != NULL; lookup++) { if (!of_device_is_compatible(np, lookup->compatible)) continue; - if (of_address_to_resource(np, 0, &res)) - continue; - if (res.start != lookup->phys_addr) - continue; + if (!of_address_to_resource(np, 0, &res)) + if (res.start != lookup->phys_addr) + continue; pr_debug("%s: devname=%s\n", np->full_name, lookup->name); return lookup; } -- cgit v1.2.3 From 863555be0c81558b1af277addcf68acb8f778860 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Tue, 26 Jun 2012 15:57:30 -0700 Subject: tcm_fc: Resolve suspicious RCU usage warnings Use rcu_dereference_protected to tell rcu that the ft_lport_lock is held during ft_lport_create. This resolved "suspicious RCU usage" warnings when debugging options are turned on. Signed-off-by: Mark Rustad Tested-by: Ross Brattain Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/tcm_fc/tfc_sess.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index cb99da920068..87901fa74dd7 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -58,7 +58,8 @@ static struct ft_tport *ft_tport_create(struct fc_lport *lport) struct ft_tport *tport; int i; - tport = rcu_dereference(lport->prov[FC_TYPE_FCP]); + tport = rcu_dereference_protected(lport->prov[FC_TYPE_FCP], + lockdep_is_held(&ft_lport_lock)); if (tport && tport->tpg) return tport; -- cgit v1.2.3 From 4f1d0f1971ba37010603a3a5c763f398b888d2f4 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 4 Jul 2012 16:35:35 +0100 Subject: qla2xxx: print the right array elements in qlt_async_event Based upon Alan's patch from Coverity scan id 793583, these debug messages in qlt_async_event() should be starting from byte 0, which is always the Asynchronous Event Status Code from the parent switch statement. Also, rename reason_code -> login_code following the language used in 2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed Event Mailbox Register for mailbox[2]. Signed-off-by: Alan Cox Cc: Chad Dupuis Cc: Giridhar Malavali Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 6986552b47e6..77759c78cc21 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -3960,7 +3960,7 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, { struct qla_hw_data *ha = vha->hw; struct qla_tgt *tgt = ha->tgt.qla_tgt; - int reason_code; + int login_code; ql_dbg(ql_dbg_tgt, vha, 0xe039, "scsi(%ld): ha state %d init_done %d oper_mode %d topo %d\n", @@ -4003,9 +4003,9 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, "qla_target(%d): Async LOOP_UP occured " - "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); if (tgt->link_reinit_iocb_pending) { qlt_send_notify_ack(vha, (void *)&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); @@ -4020,23 +4020,24 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, case MBA_RSCN_UPDATE: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, "qla_target(%d): Async event %#x occured " - "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, code, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); break; case MBA_PORT_UPDATE: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, "qla_target(%d): Port update async event %#x " - "occured: updating the ports database (m[1]=%x, m[2]=%x, " - "m[3]=%x, m[4]=%x)", vha->vp_idx, code, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); - reason_code = le16_to_cpu(mailbox[2]); - if (reason_code == 0x4) + "occured: updating the ports database (m[0]=%x, m[1]=%x, " + "m[2]=%x, m[3]=%x)", vha->vp_idx, code, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); + + login_code = le16_to_cpu(mailbox[2]); + if (login_code == 0x4) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, "Async MB 2: Got PLOGI Complete\n"); - else if (reason_code == 0x7) + else if (login_code == 0x7) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, "Async MB 2: Port Logged Out\n"); break; @@ -4044,9 +4045,9 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, default: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf040, "qla_target(%d): Async event %#x occured: " - "ignore (m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, - code, le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "ignore (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, + code, le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); break; } -- cgit v1.2.3 From 82163edcdfa4eb3d74516cc8e9f38dd3d039b67d Mon Sep 17 00:00:00 2001 From: Santosh Nayak Date: Sat, 23 Jun 2012 07:59:54 -0300 Subject: [media] dvb-core: Release semaphore on error path dvb_register_device() There is a missing "up_write()" here. Semaphore should be released before returning error value. Cc: stable@kernel.org Signed-off-by: Santosh Nayak Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-core/dvbdev.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 00a67326c193..39eab73b01ae 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -243,6 +243,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, if (minor == MAX_DVB_MINORS) { kfree(dvbdevfops); kfree(dvbdev); + up_write(&minor_rwsem); mutex_unlock(&dvbdev_register_lock); return -EINVAL; } -- cgit v1.2.3 From 4dab0e5fe8ceaaf267003b5d7aa0c31c1092bee0 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 5 Jul 2012 22:52:34 -0300 Subject: [media] em28xx: fix em28xx-rc load The logic that checks if a device has remote control is wrong. Due to that, the em28xx RC module is not loaded by default. Fix the logic, in order to make it work properly. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 92da7c28b6f0..862c6575c557 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2893,7 +2893,7 @@ static void request_module_async(struct work_struct *work) if (dev->board.has_dvb) request_module("em28xx-dvb"); - if (dev->board.has_ir_i2c && !disable_ir) + if (dev->board.ir_codes && !disable_ir) request_module("em28xx-rc"); } -- cgit v1.2.3 From a7deca6fa79d5c65575532e780f3c93f6bf8ddad Mon Sep 17 00:00:00 2001 From: David Dillow Date: Mon, 18 Jun 2012 00:15:21 -0300 Subject: [media] cx231xx: don't DMA to random addresses Commit 7a6f6c29d264cdd2fe0eb3d923217eed5f0ad134 (cx231xx: use URB_NO_TRANSFER_DMA_MAP) was intended to avoid mapping the DMA buffer for URB twice. This works for the URBs allocated with usb_alloc_urb(), as those are allocated from cohernent DMA pools, but the flag was also added for the VBI and audio URBs, which have a manually allocated area. This leaves the random trash in the structure after allocation as the DMA address, corrupting memory and preventing VBI and audio from working. Letting the USB core map the buffers solves the problem. Cc: stable@kernel.org Signed-off-by: David Dillow Cc: Sri Deevi Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx231xx/cx231xx-audio.c | 4 ++-- drivers/media/video/cx231xx/cx231xx-vbi.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx231xx/cx231xx-audio.c b/drivers/media/video/cx231xx/cx231xx-audio.c index 068f78dc5d13..b4c99c7270cf 100644 --- a/drivers/media/video/cx231xx/cx231xx-audio.c +++ b/drivers/media/video/cx231xx/cx231xx-audio.c @@ -307,7 +307,7 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev) urb->context = dev; urb->pipe = usb_rcvisocpipe(dev->udev, dev->adev.end_point_addr); - urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = URB_ISO_ASAP; urb->transfer_buffer = dev->adev.transfer_buffer[i]; urb->interval = 1; urb->complete = cx231xx_audio_isocirq; @@ -368,7 +368,7 @@ static int cx231xx_init_audio_bulk(struct cx231xx *dev) urb->context = dev; urb->pipe = usb_rcvbulkpipe(dev->udev, dev->adev.end_point_addr); - urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = 0; urb->transfer_buffer = dev->adev.transfer_buffer[i]; urb->complete = cx231xx_audio_bulkirq; urb->transfer_buffer_length = sb_size; diff --git a/drivers/media/video/cx231xx/cx231xx-vbi.c b/drivers/media/video/cx231xx/cx231xx-vbi.c index 3d15314e1f88..ac7db52f404f 100644 --- a/drivers/media/video/cx231xx/cx231xx-vbi.c +++ b/drivers/media/video/cx231xx/cx231xx-vbi.c @@ -448,7 +448,7 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets, return -ENOMEM; } dev->vbi_mode.bulk_ctl.urb[i] = urb; - urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = 0; dev->vbi_mode.bulk_ctl.transfer_buffer[i] = kzalloc(sb_size, GFP_KERNEL); -- cgit v1.2.3 From a65c3262a766311d4704a9ea29354480c5e8590d Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Tue, 26 Jun 2012 04:44:40 -0300 Subject: [media] s5p-mfc: Fixed setup of custom controls in decoder and encoder Fixed bugs in functions that initialize custom controls. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 1 + drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c index 4dd32fc8fd82..feea867f318c 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c @@ -996,6 +996,7 @@ int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx) for (i = 0; i < NUM_CTRLS; i++) { if (IS_MFC51_PRIV(controls[i].id)) { + memset(&cfg, 0, sizeof(struct v4l2_ctrl_config)); cfg.ops = &s5p_mfc_dec_ctrl_ops; cfg.id = controls[i].id; cfg.min = controls[i].minimum; diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c index 03d83340e7fb..158b78989b89 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c @@ -1773,6 +1773,7 @@ int s5p_mfc_enc_ctrls_setup(struct s5p_mfc_ctx *ctx) } for (i = 0; i < NUM_CTRLS; i++) { if (IS_MFC51_PRIV(controls[i].id)) { + memset(&cfg, 0, sizeof(struct v4l2_ctrl_config)); cfg.ops = &s5p_mfc_enc_ctrl_ops; cfg.id = controls[i].id; cfg.min = controls[i].minimum; -- cgit v1.2.3 From ba50e7e16b86e25048290b682f7a4e09e069d321 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:09 -0300 Subject: [media] cx25840: fix regression in HVR-1800 analog support The refactoring of the cx25840 driver to support the cx23888 caused breakage with the existing support for cx23885/cx23887 analog support. Rework the routines such that the new code is only used for the 888. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR_1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index fc1ff69cffd0..a82b7045f8c9 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -84,7 +84,7 @@ MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]"); /* ----------------------------------------------------------------------- */ -static void cx23885_std_setup(struct i2c_client *client); +static void cx23888_std_setup(struct i2c_client *client); int cx25840_write(struct i2c_client *client, u16 addr, u8 value) { @@ -638,10 +638,13 @@ static void cx23885_initialize(struct i2c_client *client) finish_wait(&state->fw_wait, &wait); destroy_workqueue(q); - /* Call the cx23885 specific std setup func, we no longer rely on + /* Call the cx23888 specific std setup func, we no longer rely on * the generic cx24840 func. */ - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); + else + cx25840_std_setup(client); /* (re)set input */ set_input(client, state->vid_input, state->aud_input); @@ -1298,8 +1301,8 @@ static int set_v4lstd(struct i2c_client *client) } cx25840_and_or(client, 0x400, ~0xf, fmt); cx25840_and_or(client, 0x403, ~0x3, pal_m); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); else cx25840_std_setup(client); if (!is_cx2583x(state)) @@ -1782,8 +1785,8 @@ static int cx25840_s_video_routing(struct v4l2_subdev *sd, struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); return set_input(client, input, state->aud_input); } @@ -1794,8 +1797,8 @@ static int cx25840_s_audio_routing(struct v4l2_subdev *sd, struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); return set_input(client, state->vid_input, input); } @@ -4939,7 +4942,7 @@ void cx23885_dif_setup(struct i2c_client *client, u32 ifHz) } } -static void cx23885_std_setup(struct i2c_client *client) +static void cx23888_std_setup(struct i2c_client *client) { struct cx25840_state *state = to_state(i2c_get_clientdata(client)); v4l2_std_id std = state->std; -- cgit v1.2.3 From e6d0db1d47c0ac4d61c842a95988cbe8712df447 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:10 -0300 Subject: [media] cx25840: fix regression in analog support hue/saturation controls Fix regression in HVR-1800 analog support hue/saturation controls. The changes made for the cx23888 caused regressions in the analog support for cx23885/cx23887 based boards (partly due to changes in the locations of the hue/saturation controls). As a result the wrong registers were being overwritten. Add code to use the correct registers if it's a cx23888 Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR-1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 33 +++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index a82b7045f8c9..e12b3b0d7f35 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1106,9 +1106,23 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp cx25840_write4(client, 0x410, 0xffff0dbf); cx25840_write4(client, 0x414, 0x00137d03); - cx25840_write4(client, 0x418, 0x01008080); + + /* on the 887, 0x418 is HSCALE_CTRL, on the 888 it is + CHROMA_CTRL */ + if (is_cx23888(state)) + cx25840_write4(client, 0x418, 0x01008080); + else + cx25840_write4(client, 0x418, 0x01000000); + cx25840_write4(client, 0x41c, 0x00000000); - cx25840_write4(client, 0x420, 0x001c3e0f); + + /* on the 887, 0x420 is CHROMA_CTRL, on the 888 it is + CRUSH_CTRL */ + if (is_cx23888(state)) + cx25840_write4(client, 0x420, 0x001c3e0f); + else + cx25840_write4(client, 0x420, 0x001c8282); + cx25840_write4(client, 0x42c, 0x42600000); cx25840_write4(client, 0x430, 0x0000039b); cx25840_write4(client, 0x438, 0x00000000); @@ -1315,6 +1329,7 @@ static int set_v4lstd(struct i2c_client *client) static int cx25840_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); + struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); switch (ctrl->id) { @@ -1327,12 +1342,20 @@ static int cx25840_s_ctrl(struct v4l2_ctrl *ctrl) break; case V4L2_CID_SATURATION: - cx25840_write(client, 0x420, ctrl->val << 1); - cx25840_write(client, 0x421, ctrl->val << 1); + if (is_cx23888(state)) { + cx25840_write(client, 0x418, ctrl->val << 1); + cx25840_write(client, 0x419, ctrl->val << 1); + } else { + cx25840_write(client, 0x420, ctrl->val << 1); + cx25840_write(client, 0x421, ctrl->val << 1); + } break; case V4L2_CID_HUE: - cx25840_write(client, 0x422, ctrl->val); + if (is_cx23888(state)) + cx25840_write(client, 0x41a, ctrl->val); + else + cx25840_write(client, 0x422, ctrl->val); break; default: -- cgit v1.2.3 From d90133ec58d4fad822ff322557b6885c5b77f127 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:11 -0300 Subject: [media] cx25840: fix regression in HVR-1800 analog audio The refactoring of the cx25840 driver to support the cx23888 caused breakage with the existing support for cx23885/cx23887 analog audio support. Tweak the code so that it only uses the code if it really is a cx23888 instead of applying it to all cx2388x based devices. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR_1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index e12b3b0d7f35..7dc7bb155dff 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1250,7 +1250,7 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp cx25840_write4(client, 0x8d0, 0x1f063870); } - if (is_cx2388x(state)) { + if (is_cx23888(state)) { /* HVR1850 */ /* AUD_IO_CTRL - I2S Input, Parallel1*/ /* - Channel 1 src - Parallel1 (Merlin out) */ -- cgit v1.2.3 From b5c5c17babfaf83f274ca8f0a7660284882d8d4d Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:12 -0300 Subject: [media] cx25840: fix vsrc/hsrc usage on cx23888 designs The location of the vsrc/hsrc registers moved in the cx23888, causing the s_mbus call to fail prematurely indicating that "720x480 is not a valid size". The function bailed out before many pertinent registers were set related to the scaler (causing unexpected results in video rendering when doing raw video capture). Use the correct registers for the cx23888. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR-1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 7dc7bb155dff..d8eac3e30a7e 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1380,11 +1380,21 @@ static int cx25840_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt fmt->field = V4L2_FIELD_INTERLACED; fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; - Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; - Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; + if (is_cx23888(state)) { + Vsrc = (cx25840_read(client, 0x42a) & 0x3f) << 4; + Vsrc |= (cx25840_read(client, 0x429) & 0xf0) >> 4; + } else { + Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; + Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; + } - Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; - Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; + if (is_cx23888(state)) { + Hsrc = (cx25840_read(client, 0x426) & 0x3f) << 4; + Hsrc |= (cx25840_read(client, 0x425) & 0xf0) >> 4; + } else { + Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; + Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; + } Vlines = fmt->height + (is_50Hz ? 4 : 7); -- cgit v1.2.3 From d214ddc86807fb1995fd3400347a202826332710 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:13 -0300 Subject: [media] cx23885: make analog support work for HVR_1250 (cx23885 variant) The analog support in the cx23885 driver was completely broken for the HVR-1250. Add the necessary code. Note that this only implements analog for the composite and s-video inputs. The tuner input continues to be non-functional due to a lack of analog support in the mt2131 driver. Validated with the following boards: HVR-1250 (0070:7911) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 31 +++++++++++++++++++++-------- drivers/media/video/cx23885/cx23885-video.c | 1 + 2 files changed, 24 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index 13739e002a63..f8664f2ccfda 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -127,22 +127,37 @@ struct cx23885_board cx23885_boards[] = { }, [CX23885_BOARD_HAUPPAUGE_HVR1250] = { .name = "Hauppauge WinTV-HVR1250", + .porta = CX23885_ANALOG_VIDEO, .portc = CX23885_MPEG_DVB, +#ifdef MT2131_NO_ANALOG_SUPPORT_YET + .tuner_type = TUNER_PHILIPS_TDA8290, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .tuner_bus = 1, +#endif + .force_bff = 1, .input = {{ +#ifdef MT2131_NO_ANALOG_SUPPORT_YET .type = CX23885_VMUX_TELEVISION, - .vmux = 0, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1, + .amux = CX25840_AUDIO8, .gpio0 = 0xff00, }, { - .type = CX23885_VMUX_DEBUG, - .vmux = 0, - .gpio0 = 0xff01, - }, { +#endif .type = CX23885_VMUX_COMPOSITE1, - .vmux = 1, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN6_CH1, + .amux = CX25840_AUDIO7, .gpio0 = 0xff02, }, { .type = CX23885_VMUX_SVIDEO, - .vmux = 2, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, .gpio0 = 0xff02, } }, }, @@ -1526,10 +1541,10 @@ void cx23885_card_setup(struct cx23885_dev *dev) */ switch (dev->board) { case CX23885_BOARD_TEVII_S470: - case CX23885_BOARD_HAUPPAUGE_HVR1250: /* Currently only enabled for the integrated IR controller */ if (!enable_885_ir) break; + case CX23885_BOARD_HAUPPAUGE_HVR1250: case CX23885_BOARD_HAUPPAUGE_HVR1800: case CX23885_BOARD_HAUPPAUGE_HVR1800lp: case CX23885_BOARD_HAUPPAUGE_HVR1700: diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index c654bdc7ccb2..4d05689df426 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -505,6 +505,7 @@ static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) || (dev->board == CX23885_BOARD_MPX885) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850)) { /* Configure audio routing */ v4l2_subdev_call(dev->sd_cx25840, audio, s_routing, -- cgit v1.2.3 From 0ac60acb5491df565141c0e3a87d7148a865fe36 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:14 -0300 Subject: [media] cx23885: add support for HVR-1255 analog (cx23888 variant) Get the HVR-1255 analog support working for all supported inputs. This includes introduction of a new board profile for an OEM variant which doesn't have all the same inputs as the retail version of the board. Validated with the following boards: HVR-1255 (0070:2259) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 56 ++++++++++++++++++++++++++++- drivers/media/video/cx23885/cx23885-dvb.c | 6 ++++ drivers/media/video/cx23885/cx23885-video.c | 8 ++++- drivers/media/video/cx23885/cx23885.h | 1 + 4 files changed, 69 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index f8664f2ccfda..bf79003bd8f6 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -282,7 +282,55 @@ struct cx23885_board cx23885_boards[] = { }, [CX23885_BOARD_HAUPPAUGE_HVR1255] = { .name = "Hauppauge WinTV-HVR1255", + .porta = CX23885_ANALOG_VIDEO, .portc = CX23885_MPEG_DVB, + .tuner_type = TUNER_ABSENT, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .force_bff = 1, + .input = {{ + .type = CX23885_VMUX_TELEVISION, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1 | + CX25840_DIF_ON, + .amux = CX25840_AUDIO8, + }, { + .type = CX23885_VMUX_COMPOSITE1, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN6_CH1, + .amux = CX25840_AUDIO7, + }, { + .type = CX23885_VMUX_SVIDEO, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, + } }, + }, + [CX23885_BOARD_HAUPPAUGE_HVR1255_22111] = { + .name = "Hauppauge WinTV-HVR1255", + .porta = CX23885_ANALOG_VIDEO, + .portc = CX23885_MPEG_DVB, + .tuner_type = TUNER_ABSENT, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .force_bff = 1, + .input = {{ + .type = CX23885_VMUX_TELEVISION, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1 | + CX25840_DIF_ON, + .amux = CX25840_AUDIO8, + }, { + .type = CX23885_VMUX_SVIDEO, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, + } }, }, [CX23885_BOARD_HAUPPAUGE_HVR1210] = { .name = "Hauppauge WinTV-HVR1210", @@ -639,7 +687,7 @@ struct cx23885_subid cx23885_subids[] = { }, { .subvendor = 0x0070, .subdevice = 0x2259, - .card = CX23885_BOARD_HAUPPAUGE_HVR1255, + .card = CX23885_BOARD_HAUPPAUGE_HVR1255_22111, }, { .subvendor = 0x0070, .subdevice = 0x2291, @@ -1145,6 +1193,7 @@ void cx23885_gpio_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: /* GPIO-5 RF Control: 0 = RF1 Terrestrial, 1 = RF2 Cable */ /* GPIO-6 I2C Gate which can isolate the demod from the bus */ @@ -1282,6 +1331,7 @@ int cx23885_ir_init(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1400: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: /* FIXME: Implement me */ break; @@ -1439,6 +1489,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: case CX23885_BOARD_HAUPPAUGE_HVR1850: case CX23885_BOARD_HAUPPAUGE_HVR1290: @@ -1526,6 +1577,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: case CX23885_BOARD_HAUPPAUGE_HVR1290: @@ -1554,6 +1606,8 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: + case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1850: case CX23885_BOARD_MYGICA_X8506: diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c index a80a92c47455..cd542684ba02 100644 --- a/drivers/media/video/cx23885/cx23885-dvb.c +++ b/drivers/media/video/cx23885/cx23885-dvb.c @@ -712,6 +712,7 @@ static int dvb_register(struct cx23885_tsport *port) } break; case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: i2c_bus = &dev->i2c_bus[0]; fe0->dvb.frontend = dvb_attach(s5h1411_attach, &hcw_s5h1411_config, @@ -721,6 +722,11 @@ static int dvb_register(struct cx23885_tsport *port) 0x60, &dev->i2c_bus[1].i2c_adap, &hauppauge_tda18271_config); } + + tda18271_attach(&dev->ts1.analog_fe, + 0x60, &dev->i2c_bus[1].i2c_adap, + &hauppauge_tda18271_config); + break; case CX23885_BOARD_HAUPPAUGE_HVR1800: i2c_bus = &dev->i2c_bus[0]; diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 4d05689df426..22f8e7fbd665 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -506,6 +506,8 @@ static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) || (dev->board == CX23885_BOARD_MPX885) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850)) { /* Configure audio routing */ v4l2_subdev_call(dev->sd_cx25840, audio, s_routing, @@ -1579,7 +1581,9 @@ static int cx23885_set_freq_via_ops(struct cx23885_dev *dev, fe = vfe->dvb.frontend; - if (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) + if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111)) fe = &dev->ts1.analog_fe; if (fe && fe->ops.tuner_ops.set_analog_params) { @@ -1609,6 +1613,8 @@ int cx23885_set_frequency(struct file *file, void *priv, int ret; switch (dev->board) { + case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1850: ret = cx23885_set_freq_via_ops(dev, f); break; diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index d884784a1c85..13c37ec07ae7 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -90,6 +90,7 @@ #define CX23885_BOARD_MYGICA_X8507 33 #define CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL 34 #define CX23885_BOARD_TEVII_S471 35 +#define CX23885_BOARD_HAUPPAUGE_HVR1255_22111 36 #define GPIO_0 0x00000001 #define GPIO_1 0x00000002 -- cgit v1.2.3 From c6cff169268bba9de687acf317ac24aa038cc263 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:38:03 -0300 Subject: [media] cx23885: Silence unknown command warnings I am seeing a constant stream of warnings on my cx23885 based card: cx23885_tuner_callback(): Unknown command 0x2. Add a check in cx23885_tuner_callback to silence it. Signed-off-by: Anton Blanchard Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index bf79003bd8f6..080e11157e5f 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -963,7 +963,7 @@ int cx23885_tuner_callback(void *priv, int component, int command, int arg) struct cx23885_dev *dev = port->dev; u32 bitmask = 0; - if (command == XC2028_RESET_CLK) + if ((command == XC2028_RESET_CLK) || (command == XC2028_I2C_FLUSH)) return 0; if (command != 0) { -- cgit v1.2.3 From 57f4422f7bd83bb0a092e3f9aea0d9c8ac59045e Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:58:00 -0300 Subject: [media] winbond-cir: Fix txandrx module info MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We aren't getting any module info for the txandx option because of a typo: parm: txandrx:bool Signed-off-by: Anton Blanchard Acked-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/winbond-cir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index 342c2c8c1ddf..eca17b564cc2 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -232,7 +232,7 @@ MODULE_PARM_DESC(invert, "Invert the signal from the IR receiver"); static bool txandrx; /* default = 0 */ module_param(txandrx, bool, 0444); -MODULE_PARM_DESC(invert, "Allow simultaneous TX and RX"); +MODULE_PARM_DESC(txandrx, "Allow simultaneous TX and RX"); static unsigned int wake_sc = 0x800F040C; module_param(wake_sc, uint, 0644); -- cgit v1.2.3 From 8299d62843d4dcc5d769ce901799b8e7806ec93f Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:58:52 -0300 Subject: [media] winbond-cir: Initialise timeout, driver_type and allowed_protos MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to set a timeout so we can go idle on no activity. Signed-off-by: Anton Blanchard Acked-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/winbond-cir.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index eca17b564cc2..54ee34872d14 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -1032,6 +1032,8 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) data->dev->tx_ir = wbcir_tx; data->dev->priv = data; data->dev->dev.parent = &device->dev; + data->dev->timeout = MS_TO_NS(100); + data->dev->allowed_protos = RC_TYPE_ALL; if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) { dev_err(dev, "Region 0x%lx-0x%lx already in use!\n", -- cgit v1.2.3 From 7103180b4385de908d69815dbd6807879d371cbf Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 5 Jul 2012 14:31:33 -0300 Subject: [media] omap3isp: preview: Fix output size computation depending on input format The preview engine crops 4 columns and 4 lines when CFA is enabled. Commit b2da46e52fe7871cba36e1a435844502c0eccf39 ("omap3isp: preview: Add support for greyscale input") inverted the condition by mistake, fix this. Reported-by: Florian Neuhaus Signed-off-by: Laurent Pinchart Tested-by: Florian Neuhaus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/isppreview.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c index 8a4935ecc655..a48a747b6fcc 100644 --- a/drivers/media/video/omap3isp/isppreview.c +++ b/drivers/media/video/omap3isp/isppreview.c @@ -1102,7 +1102,7 @@ static void preview_config_input_size(struct isp_prev_device *prev, u32 active) unsigned int elv = prev->crop.top + prev->crop.height - 1; u32 features; - if (format->code == V4L2_MBUS_FMT_Y10_1X10) { + if (format->code != V4L2_MBUS_FMT_Y10_1X10) { sph -= 2; eph += 2; slv -= 2; -- cgit v1.2.3 From 5aedc1094041335598c6aa73c5cf882f30886cd7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 6 Jul 2012 08:41:25 -0300 Subject: [media] omap3isp: preview: Fix contrast and brightness handling Commit bac387efbb88cf0e8df6f46a38387897cea464ee ("omap3isp: preview: Simplify configuration parameters access") added three fields to the preview_update structure, but failed to properly update the related initializers. Fix this. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/isppreview.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c index a48a747b6fcc..dd91da26f1b0 100644 --- a/drivers/media/video/omap3isp/isppreview.c +++ b/drivers/media/video/omap3isp/isppreview.c @@ -888,12 +888,12 @@ static const struct preview_update update_attrs[] = { preview_config_contrast, NULL, offsetof(struct prev_params, contrast), - 0, true, + 0, 0, true, }, /* OMAP3ISP_PREV_BRIGHTNESS */ { preview_config_brightness, NULL, offsetof(struct prev_params, brightness), - 0, true, + 0, 0, true, }, }; -- cgit v1.2.3 From 4e39da01027eb73556c1ad416945e37f2771464e Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 4 Jun 2012 13:15:56 -0300 Subject: [media] s5p-fimc: Add missing FIMC-LITE file operations locking commit 5126f2590bee412e3053de851cb07f531e4be36a "v4l2-dev: add flag to have the core lock all file operations" introduced an additional bit flag (V4L2_FL_LOCK_ALL_FOPS) that should be set by drivers that use the v4l2 core lock for all file operations. Since this driver has been merged at the same time as the core changes it doesn't set this flags and thus its all file operations except IOCTL are not properly serialized. Fix this by adding file ops locking in the driver. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 61 +++++++++++++++++++++++--------- 1 file changed, 44 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index 4d269b8fa1ef..74ff310db30c 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -453,34 +453,42 @@ static int fimc_lite_open(struct file *file) struct fimc_lite *fimc = video_drvdata(file); int ret; + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; + set_bit(ST_FLITE_IN_USE, &fimc->state); ret = pm_runtime_get_sync(&fimc->pdev->dev); if (ret < 0) - return ret; - - if (++fimc->ref_count != 1 || fimc->out_path != FIMC_IO_DMA) - return 0; + goto done; ret = v4l2_fh_open(file); if (ret < 0) - return ret; + goto done; - ret = fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, - true); - if (ret < 0) { - pm_runtime_put_sync(&fimc->pdev->dev); - fimc->ref_count--; - v4l2_fh_release(file); - clear_bit(ST_FLITE_IN_USE, &fimc->state); - } + if (++fimc->ref_count == 1 && fimc->out_path == FIMC_IO_DMA) { + ret = fimc_pipeline_initialize(&fimc->pipeline, + &fimc->vfd->entity, true); + if (ret < 0) { + pm_runtime_put_sync(&fimc->pdev->dev); + fimc->ref_count--; + v4l2_fh_release(file); + clear_bit(ST_FLITE_IN_USE, &fimc->state); + } - fimc_lite_clear_event_counters(fimc); + fimc_lite_clear_event_counters(fimc); + } +done: + mutex_unlock(&fimc->lock); return ret; } static int fimc_lite_close(struct file *file) { struct fimc_lite *fimc = video_drvdata(file); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) { clear_bit(ST_FLITE_IN_USE, &fimc->state); @@ -494,20 +502,39 @@ static int fimc_lite_close(struct file *file) if (fimc->ref_count == 0) vb2_queue_release(&fimc->vb_queue); - return v4l2_fh_release(file); + ret = v4l2_fh_release(file); + + mutex_unlock(&fimc->lock); + return ret; } static unsigned int fimc_lite_poll(struct file *file, struct poll_table_struct *wait) { struct fimc_lite *fimc = video_drvdata(file); - return vb2_poll(&fimc->vb_queue, file, wait); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return POLL_ERR; + + ret = vb2_poll(&fimc->vb_queue, file, wait); + mutex_unlock(&fimc->lock); + + return ret; } static int fimc_lite_mmap(struct file *file, struct vm_area_struct *vma) { struct fimc_lite *fimc = video_drvdata(file); - return vb2_mmap(&fimc->vb_queue, vma); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; + + ret = vb2_mmap(&fimc->vb_queue, vma); + mutex_unlock(&fimc->lock); + + return ret; } static const struct v4l2_file_operations fimc_lite_fops = { -- cgit v1.2.3 From 476a7eeb60e70ddab138e7cb4bc44ef5ac20782e Mon Sep 17 00:00:00 2001 From: Shinya Kuribayashi Date: Sat, 7 Jul 2012 13:37:42 +0300 Subject: hwspinlock/core: use global ID to register hwspinlocks on multiple devices Commit 300bab9770 (hwspinlock/core: register a bank of hwspinlocks in a single API call, 2011-09-06) introduced 'hwspin_lock_register_single()' to register numerous (a bank of) hwspinlock instances in a single API, 'hwspin_lock_register()'. At which time, 'hwspin_lock_register()' accidentally passes 'local IDs' to 'hwspin_lock_register_single()', despite that ..._single() requires 'global IDs' to register hwspinlocks. We have to convert into global IDs by supplying the missing 'base_id'. Cc: stable Signed-off-by: Shinya Kuribayashi [ohad: fix error path of hwspin_lock_register, too] Signed-off-by: Ohad Ben-Cohen --- drivers/hwspinlock/hwspinlock_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c index 61c9cf15fa52..1201a15784c3 100644 --- a/drivers/hwspinlock/hwspinlock_core.c +++ b/drivers/hwspinlock/hwspinlock_core.c @@ -345,7 +345,7 @@ int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev, spin_lock_init(&hwlock->lock); hwlock->bank = bank; - ret = hwspin_lock_register_single(hwlock, i); + ret = hwspin_lock_register_single(hwlock, base_id + i); if (ret) goto reg_failed; } @@ -354,7 +354,7 @@ int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev, reg_failed: while (--i >= 0) - hwspin_lock_unregister_single(i); + hwspin_lock_unregister_single(base_id + i); return ret; } EXPORT_SYMBOL_GPL(hwspin_lock_register); -- cgit v1.2.3 From 6ef1b512f4e6f936d89aa20be3d97a7ec7c290ac Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Jun 2012 10:52:34 -0700 Subject: [SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf fill_result_tf() grabs the taskfile flags from the originating qc which sas_ata_qc_fill_rtf() promptly overwrites. The presence of an ata_taskfile in the sata_device makes it tempting to just copy the full contents in sas_ata_qc_fill_rtf(). However, libata really only wants the fis contents and expects the other portions of the taskfile to not be touched by ->qc_fill_rtf. To that end store a fis buffer in the sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf() implementation. Cc: Reported-by: Praveen Murali Tested-by: Praveen Murali Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/aic94xx/aic94xx_task.c | 2 +- drivers/scsi/libsas/sas_ata.c | 12 ++++++------ include/scsi/libsas.h | 6 ++++-- 3 files changed, 11 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 532d212b6b2c..393e7ce8e95a 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -201,7 +201,7 @@ static void asd_get_response_tasklet(struct asd_ascb *ascb, if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) { resp->frame_len = le16_to_cpu(*(__le16 *)(r+6)); - memcpy(&resp->ending_fis[0], r+16, 24); + memcpy(&resp->ending_fis[0], r+16, ATA_RESP_FIS_SIZE); ts->buf_valid_size = sizeof(*resp); } } diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 441d88ad99a7..d109cc3a17b6 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -139,12 +139,12 @@ static void sas_ata_task_done(struct sas_task *task) if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD || ((stat->stat == SAM_STAT_CHECK_CONDITION && dev->sata_dev.command_set == ATAPI_COMMAND_SET))) { - ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf); + memcpy(dev->sata_dev.fis, resp->ending_fis, ATA_RESP_FIS_SIZE); if (!link->sactive) { - qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command); + qc->err_mask |= ac_err_mask(dev->sata_dev.fis[2]); } else { - link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.tf.command); + link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.fis[2]); if (unlikely(link->eh_info.err_mask)) qc->flags |= ATA_QCFLAG_FAILED; } @@ -161,8 +161,8 @@ static void sas_ata_task_done(struct sas_task *task) qc->flags |= ATA_QCFLAG_FAILED; } - dev->sata_dev.tf.feature = 0x04; /* status err */ - dev->sata_dev.tf.command = ATA_ERR; + dev->sata_dev.fis[3] = 0x04; /* status err */ + dev->sata_dev.fis[2] = ATA_ERR; } } @@ -269,7 +269,7 @@ static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd *qc) { struct domain_device *dev = qc->ap->private_data; - memcpy(&qc->result_tf, &dev->sata_dev.tf, sizeof(qc->result_tf)); + ata_tf_from_fis(dev->sata_dev.fis, &qc->result_tf); return true; } diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index f4f1c96dca72..10ce74f589c5 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -163,6 +163,8 @@ enum ata_command_set { ATAPI_COMMAND_SET = 1, }; +#define ATA_RESP_FIS_SIZE 24 + struct sata_device { enum ata_command_set command_set; struct smp_resp rps_resp; /* report_phy_sata_resp */ @@ -171,7 +173,7 @@ struct sata_device { struct ata_port *ap; struct ata_host ata_host; - struct ata_taskfile tf; + u8 fis[ATA_RESP_FIS_SIZE]; }; enum { @@ -537,7 +539,7 @@ enum exec_status { */ struct ata_task_resp { u16 frame_len; - u8 ending_fis[24]; /* dev to host or data-in */ + u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */ }; #define SAS_STATUS_BUF_SIZE 96 -- cgit v1.2.3 From a77171806515fb5e2288219ddb47af1f0b1328e7 Mon Sep 17 00:00:00 2001 From: Eddie Wai Date: Fri, 29 Jun 2012 16:37:35 -0700 Subject: [SCSI] bnx2i: Removed the reference to the netdev->base_addr The netdev->base_addr parameter has been deprecated in the L2 bnx2 driver. This is used by bnx2i for the BARn iomapping. This patch will directly reference the pci_resource_start instead of using the deprecated netdev->base_addr. This patch is actually a critical bug fix as the 1G bnx2 driver no longer supports the netdev->base_addr in the current kernel of the scsi tree. This means that Broadcom's 1G Linux iSCSI offload solution would not work at all without this patch. Signed-off-by: Eddie Wai Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/bnx2i/bnx2i.h | 1 + drivers/scsi/bnx2i/bnx2i_hwi.c | 3 +-- drivers/scsi/bnx2i/bnx2i_iscsi.c | 10 +++++----- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h index 0c53c28dc3d3..7e77cf620291 100644 --- a/drivers/scsi/bnx2i/bnx2i.h +++ b/drivers/scsi/bnx2i/bnx2i.h @@ -350,6 +350,7 @@ struct bnx2i_hba { struct pci_dev *pcidev; struct net_device *netdev; void __iomem *regview; + resource_size_t reg_base; u32 age; unsigned long cnic_dev_type; diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c index ece47e502282..86a12b48e477 100644 --- a/drivers/scsi/bnx2i/bnx2i_hwi.c +++ b/drivers/scsi/bnx2i/bnx2i_hwi.c @@ -2724,7 +2724,6 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) goto arm_cq; } - reg_base = ep->hba->netdev->base_addr; if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); @@ -2740,7 +2739,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) /* 5709 device in normal node and 5706/5708 devices */ reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); - ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, + ep->qp.ctx_base = ioremap_nocache(ep->hba->reg_base + reg_off, MB_KERNEL_CTX_SIZE); if (!ep->qp.ctx_base) return -ENOMEM; diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index f8d516b53161..621538b8b544 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -811,13 +811,13 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic) bnx2i_identify_device(hba); bnx2i_setup_host_queue_size(hba, shost); + hba->reg_base = pci_resource_start(hba->pcidev, 0); if (test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { - hba->regview = ioremap_nocache(hba->netdev->base_addr, - BNX2_MQ_CONFIG2); + hba->regview = pci_iomap(hba->pcidev, 0, BNX2_MQ_CONFIG2); if (!hba->regview) goto ioreg_map_err; } else if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) { - hba->regview = ioremap_nocache(hba->netdev->base_addr, 4096); + hba->regview = pci_iomap(hba->pcidev, 0, 4096); if (!hba->regview) goto ioreg_map_err; } @@ -884,7 +884,7 @@ cid_que_err: bnx2i_free_mp_bdt(hba); mp_bdt_mem_err: if (hba->regview) { - iounmap(hba->regview); + pci_iounmap(hba->pcidev, hba->regview); hba->regview = NULL; } ioreg_map_err: @@ -910,7 +910,7 @@ void bnx2i_free_hba(struct bnx2i_hba *hba) pci_dev_put(hba->pcidev); if (hba->regview) { - iounmap(hba->regview); + pci_iounmap(hba->pcidev, hba->regview); hba->regview = NULL; } bnx2i_free_mp_bdt(hba); -- cgit v1.2.3 From 736f29cd6b7af9646a21a34866cd16277e03ee69 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 4 Jul 2012 18:13:48 +0530 Subject: OMAPDSS: Use PM notifiers for system suspend The current way how omapdss handles system suspend and resume is that omapdss device (a platform device, which is not part of the device hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses the suspend and resume callbacks from platform_driver to handle system suspend. It does this by disabling all enabled panels on suspend, and resuming the previously disabled panels on resume. This presents a few problems. One is that as omapdss device is not related to the panel devices or the DSS HW devices, there's no ordering in the suspend process. This means that suspend could be first ran for DSS HW devices and panels, and only then for omapdss device. Currently this is not a problem, as DSS HW devices and panels do not handle suspend. Another, more pressing problem, is that when suspending or resuming, the runtime PM functions return -EACCES as runtime PM is disabled during system suspend. This causes the driver to print warnings, and operations to fail as they think that they failed to bring up the HW. This patch changes the omapdss suspend handling to use PM notifiers, which are called before suspend and after resume. This way we have a normally functioning system when we are suspending and resuming the panels. This patch, I believe, creates a problem that somebody could enable or disable a panel between PM_SUSPEND_PREPARE and the system suspend, and similarly the other way around in resume. I choose to ignore the problem for now, as it sounds rather unlikely, and if it happens, it's not fatal. In the long run the system suspend handling of omapdss and panels should be thought out properly. The current approach feels rather hacky. Perhaps the panel drivers should handle system suspend, or the users of omapdss (omapfb, omapdrm) should handle system suspend. Note that after this patch we could probably revert 0eaf9f52e94f756147dbfe1faf1f77a02378dbf9 (OMAPDSS: use sync versions of pm_runtime_put). But as I said, this patch may be temporary, so let's leave the sync version still in place. Signed-off-by: Tomi Valkeinen Reported-by: Jassi Brar Tested-by: Jassi Brar Tested-by: Joe Woodward Signed-off-by: Archit Taneja [fts: fixed 2 brace coding style issues] Signed-off-by: Florian Tobias Schandinat --- drivers/video/omap2/dss/core.c | 43 ++++++++++++++++++++++++++---------------- 1 file changed, 27 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 5066eee10ccf..58bd9c27369d 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -32,6 +32,7 @@ #include #include #include +#include #include