From 1fd9c467b4f7e08beee41f9771396f39265f4c08 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 5 Mar 2013 11:51:55 +0800 Subject: mfd: arizona: Define additional FLL control registers Signed-off-by: Mark Brown --- include/linux/mfd/arizona/registers.h | 40 +++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index 340355136069..a61ce90ecd3f 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -85,12 +85,14 @@ #define ARIZONA_FLL1_CONTROL_6 0x176 #define ARIZONA_FLL1_LOOP_FILTER_TEST_1 0x177 #define ARIZONA_FLL1_NCO_TEST_0 0x178 +#define ARIZONA_FLL1_CONTROL_7 0x179 #define ARIZONA_FLL1_SYNCHRONISER_1 0x181 #define ARIZONA_FLL1_SYNCHRONISER_2 0x182 #define ARIZONA_FLL1_SYNCHRONISER_3 0x183 #define ARIZONA_FLL1_SYNCHRONISER_4 0x184 #define ARIZONA_FLL1_SYNCHRONISER_5 0x185 #define ARIZONA_FLL1_SYNCHRONISER_6 0x186 +#define ARIZONA_FLL1_SYNCHRONISER_7 0x187 #define ARIZONA_FLL1_SPREAD_SPECTRUM 0x189 #define ARIZONA_FLL1_GPIO_CLOCK 0x18A #define ARIZONA_FLL2_CONTROL_1 0x191 @@ -101,12 +103,14 @@ #define ARIZONA_FLL2_CONTROL_6 0x196 #define ARIZONA_FLL2_LOOP_FILTER_TEST_1 0x197 #define ARIZONA_FLL2_NCO_TEST_0 0x198 +#define ARIZONA_FLL2_CONTROL_7 0x199 #define ARIZONA_FLL2_SYNCHRONISER_1 0x1A1 #define ARIZONA_FLL2_SYNCHRONISER_2 0x1A2 #define ARIZONA_FLL2_SYNCHRONISER_3 0x1A3 #define ARIZONA_FLL2_SYNCHRONISER_4 0x1A4 #define ARIZONA_FLL2_SYNCHRONISER_5 0x1A5 #define ARIZONA_FLL2_SYNCHRONISER_6 0x1A6 +#define ARIZONA_FLL2_SYNCHRONISER_7 0x1A7 #define ARIZONA_FLL2_SPREAD_SPECTRUM 0x1A9 #define ARIZONA_FLL2_GPIO_CLOCK 0x1AA #define ARIZONA_MIC_CHARGE_PUMP_1 0x200 @@ -1677,6 +1681,13 @@ #define ARIZONA_FLL1_FRC_INTEG_VAL_SHIFT 0 /* FLL1_FRC_INTEG_VAL - [11:0] */ #define ARIZONA_FLL1_FRC_INTEG_VAL_WIDTH 12 /* FLL1_FRC_INTEG_VAL - [11:0] */ +/* + * R377 (0x179) - FLL1 Control 7 + */ +#define ARIZONA_FLL1_GAIN_MASK 0x003c /* FLL1_GAIN */ +#define ARIZONA_FLL1_GAIN_SHIFT 2 /* FLL1_GAIN */ +#define ARIZONA_FLL1_GAIN_WIDTH 4 /* FLL1_GAIN */ + /* * R385 (0x181) - FLL1 Synchroniser 1 */ @@ -1723,6 +1734,17 @@ #define ARIZONA_FLL1_CLK_SYNC_SRC_SHIFT 0 /* FLL1_CLK_SYNC_SRC - [3:0] */ #define ARIZONA_FLL1_CLK_SYNC_SRC_WIDTH 4 /* FLL1_CLK_SYNC_SRC - [3:0] */ +/* + * R391 (0x187) - FLL1 Synchroniser 7 + */ +#define ARIZONA_FLL1_SYNC_GAIN_MASK 0x003c /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_GAIN_SHIFT 2 /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_GAIN_WIDTH 4 /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_BW 0x0001 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_MASK 0x0001 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_SHIFT 0 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_WIDTH 1 /* FLL1_SYNC_BW */ + /* * R393 (0x189) - FLL1 Spread Spectrum */ @@ -1815,6 +1837,13 @@ #define ARIZONA_FLL2_FRC_INTEG_VAL_SHIFT 0 /* FLL2_FRC_INTEG_VAL - [11:0] */ #define ARIZONA_FLL2_FRC_INTEG_VAL_WIDTH 12 /* FLL2_FRC_INTEG_VAL - [11:0] */ +/* + * R409 (0x199) - FLL2 Control 7 + */ +#define ARIZONA_FLL2_GAIN_MASK 0x003c /* FLL2_GAIN */ +#define ARIZONA_FLL2_GAIN_SHIFT 2 /* FLL2_GAIN */ +#define ARIZONA_FLL2_GAIN_WIDTH 4 /* FLL2_GAIN */ + /* * R417 (0x1A1) - FLL2 Synchroniser 1 */ @@ -1861,6 +1890,17 @@ #define ARIZONA_FLL2_CLK_SYNC_SRC_SHIFT 0 /* FLL2_CLK_SYNC_SRC - [3:0] */ #define ARIZONA_FLL2_CLK_SYNC_SRC_WIDTH 4 /* FLL2_CLK_SYNC_SRC - [3:0] */ +/* + * R423 (0x1A7) - FLL2 Synchroniser 7 + */ +#define ARIZONA_FLL2_SYNC_GAIN_MASK 0x003c /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_GAIN_SHIFT 2 /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_GAIN_WIDTH 4 /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_BW_MASK 0x0001 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_MASK 0x0001 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_SHIFT 0 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_WIDTH 1 /* FLL2_SYNC_BW */ + /* * R425 (0x1A9) - FLL2 Spread Spectrum */ -- cgit v1.2.3 From f04a9d8adf766c480353c0f2427e641251c9b059 Mon Sep 17 00:00:00 2001 From: Rajkumar Kasirajan Date: Wed, 30 May 2012 16:32:37 +0530 Subject: mfd: ab8500-sysctrl: Update correct turn on status In L9540, turn_on_status register is not updated correctly if the device is rebooted with AC/USB charger connected. Due to this, the device boots android instead of entering into charge only mode. Read the AC/USB status register to detect the charger presence and update the turn on status manually. Signed-off-by: Rajkumar Kasirajan Signed-off-by: Per Forlin Signed-off-by: Lee Jones Reviewed-by: Rupesh KUMAR Reviewed-by: Philippe LANGLAIS Tested-by: Rupesh KUMAR Tested-by: Philippe LANGLAIS Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 39 +++++++++++++++++++++++++++++++++++++++ drivers/mfd/ab8500-sysctrl.c | 2 +- include/linux/mfd/abx500/ab8500.h | 2 ++ 3 files changed, 42 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 7c84ced2e01b..50e6f1e29727 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -111,6 +111,13 @@ #define AB8500_TURN_ON_STATUS 0x00 +#define AB8500_CH_USBCH_STAT1_REG 0x02 +#define VBUS_DET_DBNC100 0x02 +#define VBUS_DET_DBNC1 0x01 + +static DEFINE_SPINLOCK(on_stat_lock); +static u8 turn_on_stat_mask = 0xFF; +static u8 turn_on_stat_set; static bool no_bm; /* No battery management */ module_param(no_bm, bool, S_IRUGO); @@ -1171,6 +1178,15 @@ static ssize_t show_switch_off_status(struct device *dev, return sprintf(buf, "%#x\n", value); } +/* use mask and set to override the register turn_on_stat value */ +void ab8500_override_turn_on_stat(u8 mask, u8 set) +{ + spin_lock(&on_stat_lock); + turn_on_stat_mask = mask; + turn_on_stat_set = set; + spin_unlock(&on_stat_lock); +} + /* * ab8500 has turned on due to (TURN_ON_STATUS): * 0x01 PORnVbat @@ -1194,6 +1210,20 @@ static ssize_t show_turn_on_status(struct device *dev, AB8500_TURN_ON_STATUS, &value); if (ret < 0) return ret; + + /* + * In L9540, turn_on_status register is not updated correctly if + * the device is rebooted with AC/USB charger connected. Due to + * this, the device boots android instead of entering into charge + * only mode. Read the AC/USB status register to detect the charger + * presence and update the turn on status manually. + */ + if (is_ab9540(ab8500)) { + spin_lock(&on_stat_lock); + value = (value & turn_on_stat_mask) | turn_on_stat_set; + spin_unlock(&on_stat_lock); + } + return sprintf(buf, "%#x\n", value); } @@ -1399,6 +1429,15 @@ static int ab8500_probe(struct platform_device *pdev) if (plat && plat->init) plat->init(ab8500); + if (is_ab9540(ab8500)) { + ret = get_register_interruptible(ab8500, AB8500_CHARGER, + AB8500_CH_USBCH_STAT1_REG, &value); + if (ret < 0) + return ret; + if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100)) + ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON, + AB8500_VBUS_DET); + } /* Clear and mask all interrupts */ for (i = 0; i < ab8500->mask_size; i++) { diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index 108fd86552f0..7c773797d267 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -21,7 +21,7 @@ void ab8500_power_off(void) { sigset_t old; sigset_t all; - static char *pss[] = {"ab8500_ac", "ab8500_usb"}; + static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"}; int i; bool charger_present = false; union power_supply_propval val; diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 9db0bda446a0..fdd8be64feeb 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -512,6 +512,8 @@ static inline int is_ab9540_2p0_or_earlier(struct ab8500 *ab) return (is_ab9540(ab) && (ab->chip_id < AB8500_CUT2P0)); } +void ab8500_override_turn_on_stat(u8 mask, u8 set); + #ifdef CONFIG_AB8500_DEBUG void ab8500_dump_all_banks(struct device *dev); void ab8500_debug_register_interrupt(int line); -- cgit v1.2.3 From 734823462590335cbf5c6a1fa5cae84a881dcb43 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 26 Feb 2013 10:06:55 +0000 Subject: mfd: ab8500-gpadc: Add gpadc hw conversion Add the support of gpacd hw conversion and make the number of sample configurable. Signed-off-by: M'boumba Cedric Madianga Signed-off-by: Lee Jones Reviewed-by: Mattias WALLIN Tested-by: Michel JAOUEN Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-debugfs.c | 292 +++++++++++++++++++++++++++++--- drivers/mfd/ab8500-gpadc.c | 282 ++++++++++++++++++++++-------- include/linux/mfd/abx500/ab8500-gpadc.h | 30 +++- 3 files changed, 499 insertions(+), 105 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index 45fe3c50eb03..59ecd8c680ed 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -101,6 +101,11 @@ static int num_irqs; static struct device_attribute **dev_attr; static char **event_name; +static u8 avg_sample = SAMPLE_16; +static u8 trig_edge = RISING_EDGE; +static u8 conv_type = ADC_SW; +static u8 trig_timer; + /** * struct ab8500_reg_range * @first: the first address of the range @@ -808,9 +813,10 @@ static int ab8500_gpadc_bat_ctrl_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL); + bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL, + avg_sample, trig_edge, trig_timer, conv_type); bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BAT_CTRL, bat_ctrl_raw); + BAT_CTRL, bat_ctrl_raw); return seq_printf(s, "%d,0x%X\n", bat_ctrl_convert, bat_ctrl_raw); @@ -836,9 +842,10 @@ static int ab8500_gpadc_btemp_ball_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL); + btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL, + avg_sample, trig_edge, trig_timer, conv_type); btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, - btemp_ball_raw); + btemp_ball_raw); return seq_printf(s, "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw); @@ -865,9 +872,10 @@ static int ab8500_gpadc_main_charger_v_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V); + main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V, + avg_sample, trig_edge, trig_timer, conv_type); main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_V, main_charger_v_raw); + MAIN_CHARGER_V, main_charger_v_raw); return seq_printf(s, "%d,0x%X\n", main_charger_v_convert, main_charger_v_raw); @@ -895,9 +903,10 @@ static int ab8500_gpadc_acc_detect1_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1); + acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1, + avg_sample, trig_edge, trig_timer, conv_type); acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1, - acc_detect1_raw); + acc_detect1_raw); return seq_printf(s, "%d,0x%X\n", acc_detect1_convert, acc_detect1_raw); @@ -925,9 +934,10 @@ static int ab8500_gpadc_acc_detect2_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2); + acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2, + avg_sample, trig_edge, trig_timer, conv_type); acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc, - ACC_DETECT2, acc_detect2_raw); + ACC_DETECT2, acc_detect2_raw); return seq_printf(s, "%d,0x%X\n", acc_detect2_convert, acc_detect2_raw); @@ -955,9 +965,10 @@ static int ab8500_gpadc_aux1_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1); + aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1, + avg_sample, trig_edge, trig_timer, conv_type); aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1, - aux1_raw); + aux1_raw); return seq_printf(s, "%d,0x%X\n", aux1_convert, aux1_raw); @@ -983,9 +994,10 @@ static int ab8500_gpadc_aux2_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2); + aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2, + avg_sample, trig_edge, trig_timer, conv_type); aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2, - aux2_raw); + aux2_raw); return seq_printf(s, "%d,0x%X\n", aux2_convert, aux2_raw); @@ -1011,9 +1023,10 @@ static int ab8500_gpadc_main_bat_v_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V); + main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V, + avg_sample, trig_edge, trig_timer, conv_type); main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, - main_bat_v_raw); + main_bat_v_raw); return seq_printf(s, "%d,0x%X\n", main_bat_v_convert, main_bat_v_raw); @@ -1040,9 +1053,10 @@ static int ab8500_gpadc_vbus_v_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V); + vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V, + avg_sample, trig_edge, trig_timer, conv_type); vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V, - vbus_v_raw); + vbus_v_raw); return seq_printf(s, "%d,0x%X\n", vbus_v_convert, vbus_v_raw); @@ -1068,9 +1082,10 @@ static int ab8500_gpadc_main_charger_c_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C); + main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C, + avg_sample, trig_edge, trig_timer, conv_type); main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_C, main_charger_c_raw); + MAIN_CHARGER_C, main_charger_c_raw); return seq_printf(s, "%d,0x%X\n", main_charger_c_convert, main_charger_c_raw); @@ -1098,9 +1113,10 @@ static int ab8500_gpadc_usb_charger_c_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C); + usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C, + avg_sample, trig_edge, trig_timer, conv_type); usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - USB_CHARGER_C, usb_charger_c_raw); + USB_CHARGER_C, usb_charger_c_raw); return seq_printf(s, "%d,0x%X\n", usb_charger_c_convert, usb_charger_c_raw); @@ -1128,9 +1144,10 @@ static int ab8500_gpadc_bk_bat_v_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V); + bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V, + avg_sample, trig_edge, trig_timer, conv_type); bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BK_BAT_V, bk_bat_v_raw); + BK_BAT_V, bk_bat_v_raw); return seq_printf(s, "%d,0x%X\n", bk_bat_v_convert, bk_bat_v_raw); @@ -1156,9 +1173,10 @@ static int ab8500_gpadc_die_temp_print(struct seq_file *s, void *p) struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP); + die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP, + avg_sample, trig_edge, trig_timer, conv_type); die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP, - die_temp_raw); + die_temp_raw); return seq_printf(s, "%d,0x%X\n", die_temp_convert, die_temp_raw); @@ -1177,6 +1195,208 @@ static const struct file_operations ab8500_gpadc_die_temp_fops = { .owner = THIS_MODULE, }; +static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "%d\n", avg_sample); +} + +static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_avg_sample_print, + inode->i_private); +} + +static ssize_t ab8500_gpadc_avg_sample_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_avg_sample; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_avg_sample); + if (err) + return -EINVAL; + if ((user_avg_sample == SAMPLE_1) || (user_avg_sample == SAMPLE_4) + || (user_avg_sample == SAMPLE_8) + || (user_avg_sample == SAMPLE_16)) { + avg_sample = (u8) user_avg_sample; + } else { + dev_err(dev, "debugfs error input: " + "should be egal to 1, 4, 8 or 16\n"); + return -EINVAL; + } + return buf_size; +} + +static const struct file_operations ab8500_gpadc_avg_sample_fops = { + .open = ab8500_gpadc_avg_sample_open, + .read = seq_read, + .write = ab8500_gpadc_avg_sample_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "%d\n", trig_edge); +} + +static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_trig_edge_print, + inode->i_private); +} + +static ssize_t ab8500_gpadc_trig_edge_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_trig_edge; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_trig_edge); + if (err) + return -EINVAL; + if ((user_trig_edge == RISING_EDGE) + || (user_trig_edge == FALLING_EDGE)) { + trig_edge = (u8) user_trig_edge; + } else { + dev_err(dev, "Wrong input:\n" + "Enter 0. Rising edge\n" + "Enter 1. Falling edge\n"); + return -EINVAL; + } + return buf_size; +} + +static const struct file_operations ab8500_gpadc_trig_edge_fops = { + .open = ab8500_gpadc_trig_edge_open, + .read = seq_read, + .write = ab8500_gpadc_trig_edge_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "%d\n", trig_timer); +} + +static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_trig_timer_print, + inode->i_private); +} + +static ssize_t ab8500_gpadc_trig_timer_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_trig_timer; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_trig_timer); + if (err) + return -EINVAL; + if ((user_trig_timer >= 0) && (user_trig_timer <= 255)) { + trig_timer = (u8) user_trig_timer; + } else { + dev_err(dev, "debugfs error input: " + "should be beetween 0 to 255\n"); + return -EINVAL; + } + return buf_size; +} + +static const struct file_operations ab8500_gpadc_trig_timer_fops = { + .open = ab8500_gpadc_trig_timer_open, + .read = seq_read, + .write = ab8500_gpadc_trig_timer_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "%d\n", conv_type); +} + +static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_conv_type_print, + inode->i_private); +} + +static ssize_t ab8500_gpadc_conv_type_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + char buf[32]; + int buf_size; + unsigned long user_conv_type; + int err; + + /* Get userspace string and assure termination */ + buf_size = min(count, (sizeof(buf) - 1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + buf[buf_size] = 0; + + err = strict_strtoul(buf, 0, &user_conv_type); + if (err) + return -EINVAL; + if ((user_conv_type == ADC_SW) + || (user_conv_type == ADC_HW)) { + conv_type = (u8) user_conv_type; + } else { + dev_err(dev, "Wrong input:\n" + "Enter 0. ADC SW conversion\n" + "Enter 1. ADC HW conversion\n"); + return -EINVAL; + } + return buf_size; +} + +static const struct file_operations ab8500_gpadc_conv_type_fops = { + .open = ab8500_gpadc_conv_type_open, + .read = seq_read, + .write = ab8500_gpadc_conv_type_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + /* * return length of an ASCII numerical value, 0 is string is not a * numerical value. @@ -1722,6 +1942,26 @@ static int ab8500_debug_probe(struct platform_device *plf) if (!file) goto err; + file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_avg_sample_fops); + if (!file) + goto err; + + file = debugfs_create_file("trig_edge", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_trig_edge_fops); + if (!file) + goto err; + + file = debugfs_create_file("trig_timer", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_trig_timer_fops); + if (!file) + goto err; + + file = debugfs_create_file("conv_type", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_conv_type_fops); + if (!file) + goto err; + return 0; err: diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index 7f39479c1afc..8673bf66f7d7 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -55,13 +55,18 @@ #define EN_VTVOUT 0x02 #define EN_GPADC 0x01 #define DIS_GPADC 0x00 -#define SW_AVG_16 0x60 +#define AVG_1 0x00 +#define AVG_4 0x20 +#define AVG_8 0x40 +#define AVG_16 0x60 #define ADC_SW_CONV 0x04 #define EN_ICHAR 0x80 #define BTEMP_PULL_UP 0x08 #define EN_BUF 0x40 #define DIS_ZERO 0x00 #define GPADC_BUSY 0x01 +#define EN_FALLING 0x10 +#define EN_TRIG_EDGE 0x02 /* GPADC constants from AB8500 spec, UM0836 */ #define ADC_RESOLUTION 1024 @@ -116,7 +121,10 @@ struct adc_cal_data { * the completion of gpadc conversion * @ab8500_gpadc_lock: structure of type mutex * @regu: pointer to the struct regulator - * @irq: interrupt number that is used by gpadc + * @irq_sw: interrupt number that is used by gpadc for Sw + * conversion + * @irq_hw: interrupt number that is used by gpadc for Hw + * conversion * @cal_data array of ADC calibration data structs */ struct ab8500_gpadc { @@ -126,7 +134,8 @@ struct ab8500_gpadc { struct completion ab8500_gpadc_complete; struct mutex ab8500_gpadc_lock; struct regulator *regu; - int irq; + int irq_sw; + int irq_hw; struct adc_cal_data cal_data[NBR_CAL_INPUTS]; }; @@ -244,30 +253,35 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, EXPORT_SYMBOL(ab8500_gpadc_ad_to_voltage); /** - * ab8500_gpadc_convert() - gpadc conversion + * ab8500_gpadc_sw_hw_convert() - gpadc conversion * @channel: analog channel to be converted to digital data + * @avg_sample: number of ADC sample to average + * @trig_egde: selected ADC trig edge + * @trig_timer: selected ADC trigger delay timer + * @conv_type: selected conversion type (HW or SW conversion) * * This function converts the selected analog i/p to digital * data. */ -int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) +int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) { int ad_value; int voltage; - ad_value = ab8500_gpadc_read_raw(gpadc, channel); - - /* On failure retry a second time */ + ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, + trig_edge, trig_timer, conv_type); +/* On failure retry a second time */ if (ad_value < 0) - ad_value = ab8500_gpadc_read_raw(gpadc, channel); - - if (ad_value < 0) { - dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", channel); + ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, + trig_edge, trig_timer, conv_type); +if (ad_value < 0) { + dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", + channel); return ad_value; } voltage = ab8500_gpadc_ad_to_voltage(gpadc, channel, ad_value); - if (voltage < 0) dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:" " %d AD: 0x%x\n", channel, ad_value); @@ -279,11 +293,16 @@ EXPORT_SYMBOL(ab8500_gpadc_convert); /** * ab8500_gpadc_read_raw() - gpadc read * @channel: analog channel to be read + * @avg_sample: number of ADC sample to average + * @trig_edge: selected trig edge + * @trig_timer: selected ADC trigger delay timer + * @conv_type: selected conversion type (HW or SW conversion) * - * This function obtains the raw ADC value, this then needs - * to be converted by calling ab8500_gpadc_ad_to_voltage() + * This function obtains the raw ADC value for an hardware conversion, + * this then needs to be converted by calling ab8500_gpadc_ad_to_voltage() */ -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) +int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) { int ret; int looplimit = 0; @@ -293,7 +312,6 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) return -ENODEV; mutex_lock(&gpadc->ab8500_gpadc_lock); - /* Enable VTVout LDO this is required for GPADC */ pm_runtime_get_sync(gpadc->dev); @@ -321,9 +339,29 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) goto out; } - /* Select the channel source and set average samples to 16 */ - ret = abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_CTRL2_REG, (channel | SW_AVG_16)); + /* Select the channel source and set average samples */ + switch (avg_sample) { + case SAMPLE_1: + val = channel | AVG_1; + break; + case SAMPLE_4: + val = channel | AVG_4; + break; + case SAMPLE_8: + val = channel | AVG_8; + break; + default: + val = channel | AVG_16; + break; + + } + + if (conv_type == ADC_HW) + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL3_REG, val); + else + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL2_REG, val); if (ret < 0) { dev_err(gpadc->dev, "gpadc_conversion: set avg samples failed\n"); @@ -335,22 +373,43 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) * charging current sense if it needed, ABB 3.0 needs some special * treatment too. */ + if ((conv_type == ADC_HW) && (trig_edge)) { + ret = abx500_mask_and_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_FALLING, EN_FALLING); + + } switch (channel) { case MAIN_CHARGER_C: case USB_CHARGER_C: - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, - EN_BUF | EN_ICHAR, - EN_BUF | EN_ICHAR); - break; - case BTEMP_BALL: - if (!is_ab8500_2p0_or_earlier(gpadc->parent)) { - /* Turn on btemp pull-up on ABB 3.0 */ + if (conv_type == ADC_HW) ret = abx500_mask_and_set_register_interruptible( gpadc->dev, AB8500_GPADC, AB8500_GPADC_CTRL1_REG, - EN_BUF | BTEMP_PULL_UP, - EN_BUF | BTEMP_PULL_UP); + EN_BUF | EN_ICHAR | EN_TRIG_EDGE, + EN_BUF | EN_ICHAR | EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | EN_ICHAR, + EN_BUF | EN_ICHAR); + break; + case BTEMP_BALL: + if (!is_ab8500_2p0_or_earlier(gpadc->parent)) { + if (conv_type == ADC_HW) + /* Turn on btemp pull-up on ABB 3.0 */ + ret = abx500_mask_and_set_register_interruptible + (gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | BTEMP_PULL_UP | EN_TRIG_EDGE, + EN_BUF | BTEMP_PULL_UP | EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible + (gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | BTEMP_PULL_UP, + EN_BUF | BTEMP_PULL_UP); /* * Delay might be needed for ABB8500 cut 3.0, if not, remove @@ -361,8 +420,17 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) } /* Intentional fallthrough */ default: - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, EN_BUF, EN_BUF); + if (conv_type == ADC_HW) + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | EN_TRIG_EDGE, + EN_BUF | EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, + AB8500_GPADC_CTRL1_REG, EN_BUF, EN_BUF); break; } if (ret < 0) { @@ -371,36 +439,83 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) goto out; } - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, ADC_SW_CONV, ADC_SW_CONV); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: start s/w conversion failed\n"); - goto out; + /* Set trigger delay timer */ + if (conv_type == ADC_HW) { + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_AUTO_TIMER_REG, trig_timer); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: trig timer failed\n"); + goto out; + } + } + + /* Start SW conversion */ + if (conv_type == ADC_SW) { + ret = abx500_mask_and_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + ADC_SW_CONV, ADC_SW_CONV); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: start s/w conv failed\n"); + goto out; + } } + /* wait for completion of conversion */ - if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, - msecs_to_jiffies(CONVERSION_TIME))) { - dev_err(gpadc->dev, - "timeout: didn't receive GPADC conversion interrupt\n"); - ret = -EINVAL; - goto out; + if (conv_type == ADC_HW) { + if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, + 2*HZ)) { + dev_err(gpadc->dev, + "timeout didn't receive" + " hw GPADC conv interrupt\n"); + ret = -EINVAL; + goto out; + } + } else { + if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, + msecs_to_jiffies(CONVERSION_TIME))) { + dev_err(gpadc->dev, + "timeout didn't receive" + " sw GPADC conv interrupt\n"); + ret = -EINVAL; + goto out; + } } /* Read the converted RAW data */ - ret = abx500_get_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_MANDATAL_REG, &low_data); - if (ret < 0) { - dev_err(gpadc->dev, "gpadc_conversion: read low data failed\n"); - goto out; - } + if (conv_type == ADC_HW) { + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_AUTODATAL_REG, &low_data); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read hw low data failed\n"); + goto out; + } - ret = abx500_get_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_MANDATAH_REG, &high_data); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: read high data failed\n"); - goto out; + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_AUTODATAH_REG, &high_data); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read hw high data failed\n"); + goto out; + } + } else { + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_MANDATAL_REG, &low_data); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw low data failed\n"); + goto out; + } + + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_MANDATAH_REG, &high_data); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw high data failed\n"); + goto out; + } } /* Disable GPADC */ @@ -411,6 +526,7 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) goto out; } + /* Disable VTVout LDO this is required for GPADC */ pm_runtime_mark_last_busy(gpadc->dev); pm_runtime_put_autosuspend(gpadc->dev); @@ -427,9 +543,7 @@ out: */ (void) abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, AB8500_GPADC_CTRL1_REG, DIS_GPADC); - pm_runtime_put(gpadc->dev); - mutex_unlock(&gpadc->ab8500_gpadc_lock); dev_err(gpadc->dev, "gpadc_conversion: Failed to AD convert channel %d\n", channel); @@ -438,16 +552,16 @@ out: EXPORT_SYMBOL(ab8500_gpadc_read_raw); /** - * ab8500_bm_gpswadcconvend_handler() - isr for s/w gpadc conversion completion + * ab8500_bm_gpadcconvend_handler() - isr for gpadc conversion completion * @irq: irq number * @data: pointer to the data passed during request irq * - * This is a interrupt service routine for s/w gpadc conversion completion. + * This is a interrupt service routine for gpadc conversion completion. * Notifies the gpadc completion is completed and the converted raw value * can be read from the registers. * Returns IRQ status(IRQ_HANDLED) */ -static irqreturn_t ab8500_bm_gpswadcconvend_handler(int irq, void *_gpadc) +static irqreturn_t ab8500_bm_gpadcconvend_handler(int irq, void *_gpadc) { struct ab8500_gpadc *gpadc = _gpadc; @@ -646,11 +760,19 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) return -ENOMEM; } - gpadc->irq = platform_get_irq_byname(pdev, "SW_CONV_END"); - if (gpadc->irq < 0) { - dev_err(&pdev->dev, "failed to get platform irq-%d\n", - gpadc->irq); - ret = gpadc->irq; + gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END"); + if (gpadc->irq_sw < 0) { + dev_err(gpadc->dev, "failed to get platform irq-%d\n", + gpadc->irq_sw); + ret = gpadc->irq_sw; + goto fail; + } + + gpadc->irq_hw = platform_get_irq_byname(pdev, "HW_CONV_END"); + if (gpadc->irq_hw < 0) { + dev_err(gpadc->dev, "failed to get platform irq-%d\n", + gpadc->irq_hw); + ret = gpadc->irq_hw; goto fail; } @@ -661,14 +783,21 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) /* Initialize completion used to notify completion of conversion */ init_completion(&gpadc->ab8500_gpadc_complete); - /* Register interrupt - SwAdcComplete */ - ret = request_threaded_irq(gpadc->irq, NULL, - ab8500_bm_gpswadcconvend_handler, - IRQF_ONESHOT | IRQF_NO_SUSPEND | IRQF_SHARED, - "ab8500-gpadc", gpadc); + /* Register interrupts */ + ret = request_threaded_irq(gpadc->irq_sw, NULL, + ab8500_bm_gpadcconvend_handler, + IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-sw", gpadc); + if (ret < 0) { + dev_err(gpadc->dev, "Failed to register interrupt, irq: %d\n", + gpadc->irq_sw); + goto fail; + } + ret = request_threaded_irq(gpadc->irq_hw, NULL, + ab8500_bm_gpadcconvend_handler, + IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-hw", gpadc); if (ret < 0) { dev_err(gpadc->dev, "Failed to register interrupt, irq: %d\n", - gpadc->irq); + gpadc->irq_hw); goto fail; } @@ -694,7 +823,8 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) dev_dbg(gpadc->dev, "probe success\n"); return 0; fail_irq: - free_irq(gpadc->irq, gpadc); + free_irq(gpadc->irq_sw, gpadc); + free_irq(gpadc->irq_hw, gpadc); fail: kfree(gpadc); gpadc = NULL; @@ -708,7 +838,8 @@ static int ab8500_gpadc_remove(struct platform_device *pdev) /* remove this gpadc entry from the list */ list_del(&gpadc->node); /* remove interrupt - completion of Sw ADC conversion */ - free_irq(gpadc->irq, gpadc); + free_irq(gpadc->irq_sw, gpadc); + free_irq(gpadc->irq_hw, gpadc); pm_runtime_get_sync(gpadc->dev); pm_runtime_disable(gpadc->dev); @@ -757,6 +888,7 @@ subsys_initcall_sync(ab8500_gpadc_init); module_exit(ab8500_gpadc_exit); MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson"); +MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson," + "M'boumba Cedric Madianga"); MODULE_ALIAS("platform:ab8500_gpadc"); MODULE_DESCRIPTION("AB8500 GPADC driver"); diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 252966769d93..7694e7ab1880 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -4,12 +4,14 @@ * * Author: Arun R Murthy * Author: Daniel Willerud + * Author: M'boumba Cedric Madianga */ #ifndef _AB8500_GPADC_H #define _AB8500_GPADC_H -/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2) */ +/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2 + * and ADCHwSel[4:0] in GPADCCtrl3 ) */ #define BAT_CTRL 0x01 #define BTEMP_BALL 0x02 #define MAIN_CHARGER_V 0x03 @@ -24,12 +26,32 @@ #define BK_BAT_V 0x0C #define DIE_TEMP 0x0D +#define SAMPLE_1 1 +#define SAMPLE_4 4 +#define SAMPLE_8 8 +#define SAMPLE_16 16 +#define RISING_EDGE 0 +#define FALLING_EDGE 1 + +/* Arbitrary ADC conversion type constants */ +#define ADC_SW 0 +#define ADC_HW 1 + + struct ab8500_gpadc; struct ab8500_gpadc *ab8500_gpadc_get(char *name); -int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel); -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel); +int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); +static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) +{ + return ab8500_gpadc_sw_hw_convert(gpadc, channel, + SAMPLE_16, 0, 0, ADC_SW); +} + +int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, - u8 channel, int ad_value); + u8 channel, int ad_value); #endif /* _AB8500_GPADC_H */ -- cgit v1.2.3 From 3e1a498f2728476535571d270081a17fdfceaf26 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 25 Feb 2013 14:57:35 +0000 Subject: mfd: ab8500-core: Add Interrupt support for ab8540 ITSource/ITLatch 7, 8, 9 and 10 don't exist on AB8540. This patch replaces them with '-1' in the interrupt list, and handles the '-1' in the code accordingly. Signed-off-by: Lee Jones Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 50 +++++++++++++++++++++++++++++++++------ include/linux/mfd/abx500/ab8500.h | 1 + 2 files changed, 44 insertions(+), 7 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 23db4fcea496..0ba08a26cf73 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -103,8 +103,10 @@ #define AB8500_IT_LATCHHIER1_REG 0x60 #define AB8500_IT_LATCHHIER2_REG 0x61 #define AB8500_IT_LATCHHIER3_REG 0x62 +#define AB8540_IT_LATCHHIER4_REG 0x63 #define AB8500_IT_LATCHHIER_NUM 3 +#define AB8540_IT_LATCHHIER_NUM 4 #define AB8500_REV_REG 0x80 #define AB8500_IC_NAME_REG 0x82 @@ -143,6 +145,12 @@ static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = { 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23 }; +/* AB8540 support */ +static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = { + 0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23, + 25, 26, 27, 28, 29, 30, 31, +}; + static const char ab8500_version_str[][7] = { [AB8500_VERSION_AB8500] = "AB8500", [AB8500_VERSION_AB8505] = "AB8505", @@ -360,6 +368,9 @@ static void ab8500_irq_sync_unlock(struct irq_data *data) is_ab8500_1p1_or_earlier(ab8500)) continue; + if (ab8500->irq_reg_offset[i] < 0) + continue; + ab8500->oldmask[i] = new; reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i]; @@ -431,6 +442,18 @@ static struct irq_chip ab8500_irq_chip = { .irq_set_type = ab8500_irq_set_type, }; +static void update_latch_offset(u8 *offset, int i) +{ + /* Fix inconsistent ITFromLatch25 bit mapping... */ + if (unlikely(*offset == 17)) + *offset = 24; + /* Fix inconsistent ab8540 bit mapping... */ + if (unlikely(*offset == 16)) + *offset = 25; + if ((i==3) && (*offset >= 24)) + *offset += 2; +} + static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500, int latch_offset, u8 latch_val) { @@ -482,9 +505,7 @@ static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500, latch_bit = __ffs(hier_val); latch_offset = (hier_offset << 3) + latch_bit; - /* Fix inconsistent ITFromLatch25 bit mapping... */ - if (unlikely(latch_offset == 17)) - latch_offset = 24; + update_latch_offset(&latch_offset, hier_offset); status = get_register_interruptible(ab8500, AB8500_INTERRUPT, @@ -512,7 +533,7 @@ static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) dev_vdbg(ab8500->dev, "interrupt\n"); /* Hierarchical interrupt version */ - for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) { + for (i = 0; i < (ab8500->it_latchhier_num); i++) { int status; u8 hier_val; @@ -565,6 +586,9 @@ static irqreturn_t ab8500_irq(int irq, void *dev) if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500)) continue; + if (regoffset < 0) + continue; + status = get_register_interruptible(ab8500, AB8500_INTERRUPT, AB8500_IT_LATCH1_REG + regoffset, &value); if (status < 0 || value == 0) @@ -615,7 +639,9 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np) { int num_irqs; - if (is_ab9540(ab8500)) + if (is_ab8540(ab8500)) + num_irqs = AB8540_NR_IRQS; + else if (is_ab9540(ab8500)) num_irqs = AB9540_NR_IRQS; else if (is_ab8505(ab8500)) num_irqs = AB8505_NR_IRQS; @@ -1552,13 +1578,20 @@ static int ab8500_probe(struct platform_device *pdev) ab8500->chip_id >> 4, ab8500->chip_id & 0x0F); - /* Configure AB8500 or AB9540 IRQ */ - if (is_ab9540(ab8500) || is_ab8505(ab8500)) { + /* Configure AB8540 */ + if (is_ab8540(ab8500)) { + ab8500->mask_size = AB8540_NUM_IRQ_REGS; + ab8500->irq_reg_offset = ab8540_irq_regoffset; + ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM; + }/* Configure AB8500 or AB9540 IRQ */ + else if (is_ab9540(ab8500) || is_ab8505(ab8500)) { ab8500->mask_size = AB9540_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab9540_irq_regoffset; + ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; } else { ab8500->mask_size = AB8500_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab8500_irq_regoffset; + ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; } ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); if (!ab8500->mask) @@ -1620,6 +1653,9 @@ static int ab8500_probe(struct platform_device *pdev) is_ab8500_1p1_or_earlier(ab8500)) continue; + if (ab8500->irq_reg_offset[i] < 0) + continue; + get_register_interruptible(ab8500, AB8500_INTERRUPT, AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i], &value); diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index fdd8be64feeb..b5780fd40fe4 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -362,6 +362,7 @@ struct ab8500 { u8 *oldmask; int mask_size; const int *irq_reg_offset; + int it_latchhier_num; }; struct regulator_reg_init; -- cgit v1.2.3 From 75932094601b404fc9ef28f7b6c0aa83dd619af0 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 12 Feb 2013 15:11:19 +0000 Subject: mfd: ab8500-sysctrl: Add new reset function Add a new reset function which uses the AB WD with 0 timeout. Signed-off-by: Lee Jones Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-sysctrl.c | 63 +++++++++++++++++++++++++++++++ include/linux/mfd/abx500/ab8500-sysctrl.h | 6 +++ 2 files changed, 69 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index 6ac63a05893c..f43c42b9f32c 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -15,6 +15,12 @@ #include #include +/* RtcCtrl bits */ +#define AB8500_ALARM_MIN_LOW 0x08 +#define AB8500_ALARM_MIN_MID 0x09 +#define RTC_CTRL 0x0B +#define RTC_ALARM_ENABLE 0x4 + static struct device *sysctrl_dev; void ab8500_power_off(void) @@ -79,6 +85,63 @@ shutdown: } } +/* + * Use the AB WD to reset the platform. It will perform a hard + * reset instead of a soft reset. Write the reset reason to + * the AB before reset, which can be read upon restart. + */ +void ab8500_restart(char mode, const char *cmd) +{ + struct ab8500_platform_data *plat; + struct ab8500_sysctrl_platform_data *pdata; + u16 reason = 0; + u8 val; + + if (sysctrl_dev == NULL) { + pr_err("%s: sysctrl not initialized\n", __func__); + return; + } + + plat = dev_get_platdata(sysctrl_dev->parent); + pdata = plat->sysctrl; + if (pdata->reboot_reason_code) + reason = pdata->reboot_reason_code(cmd); + else + pr_warn("[%s] No reboot reason set. Default reason %d\n", + __func__, reason); + + /* + * Disable RTC alarm, just a precaution so that no alarm + * is running when WD reset is executed. + */ + abx500_get_register_interruptible(sysctrl_dev, AB8500_RTC, + RTC_CTRL , &val); + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + RTC_CTRL , (val & ~RTC_ALARM_ENABLE)); + + /* + * Android is not using the RTC alarm registers during reboot + * so we borrow them for writing the reason of reset + */ + + /* reason[8 LSB] */ + val = reason & 0xFF; + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + AB8500_ALARM_MIN_LOW , val); + + /* reason[8 MSB] */ + val = (reason>>8) & 0xFF; + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + AB8500_ALARM_MIN_MID , val); + + /* Setting WD timeout to 0 */ + ab8500_sysctrl_write(AB8500_MAINWDOGTIMER, 0xFF, 0x0); + + /* Setting the parameters to AB8500 WD*/ + ab8500_sysctrl_write(AB8500_MAINWDOGCTRL, 0xFF, (AB8500_ENABLE_WD | + AB8500_WD_RESTART_ON_EXPIRE | AB8500_KICK_WD)); +} + static inline bool valid_bank(u8 bank) { return ((bank == AB8500_SYS_CTRL1_BLOCK) || diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h index ebf12e793db9..990bc93f46e1 100644 --- a/include/linux/mfd/abx500/ab8500-sysctrl.h +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h @@ -12,6 +12,7 @@ int ab8500_sysctrl_read(u16 reg, u8 *value); int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value); +void ab8500_restart(char mode, const char *cmd); #else @@ -40,6 +41,7 @@ static inline int ab8500_sysctrl_clear(u16 reg, u8 bits) /* Configuration data for SysClkReq1RfClkBuf - SysClkReq8RfClkBuf */ struct ab8500_sysctrl_platform_data { u8 initial_req_buf_config[8]; + u16 (*reboot_reason_code)(const char *cmd); }; /* Registers */ @@ -299,4 +301,8 @@ struct ab8500_sysctrl_platform_data { #define AB9540_SYSCLK12BUF4VALID_SYSCLK12BUF4VALID_MASK 0xFF #define AB9540_SYSCLK12BUF4VALID_SYSCLK12BUF4VALID_SHIFT 0 +#define AB8500_ENABLE_WD 0x1 +#define AB8500_KICK_WD 0x2 +#define AB8500_WD_RESTART_ON_EXPIRE 0x10 + #endif /* __AB8500_SYSCTRL_H */ -- cgit v1.2.3 From e4bffe8d8ad9856143b6e941a17870aee37413d7 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 11 Feb 2013 10:38:00 +0000 Subject: mfd: ab8500-gpadc: Add support for the AB8540 This patch enables the GPADC to work on AB8540 based platforms. Signed-off-by: Lee Jones Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-gpadc.c | 316 ++++++++++++++++++++++++++++---- include/linux/mfd/abx500/ab8500-gpadc.h | 43 +++-- 2 files changed, 305 insertions(+), 54 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index fc8da4496e84..c985b90577f6 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -37,6 +37,13 @@ #define AB8500_GPADC_AUTODATAL_REG 0x07 #define AB8500_GPADC_AUTODATAH_REG 0x08 #define AB8500_GPADC_MUX_CTRL_REG 0x09 +#define AB8540_GPADC_MANDATA2L_REG 0x09 +#define AB8540_GPADC_MANDATA2H_REG 0x0A +#define AB8540_GPADC_APEAAX_REG 0x10 +#define AB8540_GPADC_APEAAT_REG 0x11 +#define AB8540_GPADC_APEAAM_REG 0x12 +#define AB8540_GPADC_APEAAH_REG 0x13 +#define AB8540_GPADC_APEAAL_REG 0x14 /* * OTP register offsets @@ -49,6 +56,10 @@ #define AB8500_GPADC_CAL_5 0x13 #define AB8500_GPADC_CAL_6 0x14 #define AB8500_GPADC_CAL_7 0x15 +/* New calibration for 8540 */ +#define AB8540_GPADC_OTP4_REG_7 0x38 +#define AB8540_GPADC_OTP4_REG_6 0x39 +#define AB8540_GPADC_OTP4_REG_5 0x3A /* gpadc constants */ #define EN_VINTCORE12 0x04 @@ -67,6 +78,7 @@ #define GPADC_BUSY 0x01 #define EN_FALLING 0x10 #define EN_TRIG_EDGE 0x02 +#define EN_VBIAS_XTAL_TEMP 0x02 /* GPADC constants from AB8500 spec, UM0836 */ #define ADC_RESOLUTION 1024 @@ -85,8 +97,21 @@ #define ADC_CH_BKBAT_MIN 0 #define ADC_CH_BKBAT_MAX 3200 +/* GPADC constants from AB8540 spec */ +#define ADC_CH_IBAT_MIN (-6000) /* mA range measured by ADC for ibat*/ +#define ADC_CH_IBAT_MAX 6000 +#define ADC_CH_IBAT_MIN_V (-60) /* mV range measured by ADC for ibat*/ +#define ADC_CH_IBAT_MAX_V 60 +#define IBAT_VDROP_L (-56) /* mV */ +#define IBAT_VDROP_H 56 + /* This is used to not lose precision when dividing to get gain and offset */ -#define CALIB_SCALE 1000 +#define CALIB_SCALE 1000 +/* + * Number of bits shift used to not lose precision + * when dividing to get ibat gain. + */ +#define CALIB_SHIFT_IBAT 20 /* Time in ms before disabling regulator */ #define GPADC_AUDOSUSPEND_DELAY 1 @@ -97,6 +122,7 @@ enum cal_channels { ADC_INPUT_VMAIN = 0, ADC_INPUT_BTEMP, ADC_INPUT_VBAT, + ADC_INPUT_IBAT, NBR_CAL_INPUTS, }; @@ -107,8 +133,8 @@ enum cal_channels { * @offset: Offset of the ADC channel */ struct adc_cal_data { - u64 gain; - u64 offset; + s64 gain; + s64 offset; }; /** @@ -180,6 +206,7 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, gpadc->cal_data[ADC_INPUT_VMAIN].offset) / CALIB_SCALE; break; + case XTAL_TEMP: case BAT_CTRL: case BTEMP_BALL: case ACC_DETECT1: @@ -198,6 +225,7 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, break; case MAIN_BAT_V: + case VBAT_TRUE_MEAS: /* For some reason we don't have calibrated data */ if (!gpadc->cal_data[ADC_INPUT_VBAT].gain) { res = ADC_CH_VBAT_MIN + (ADC_CH_VBAT_MAX - @@ -241,6 +269,20 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, ADC_RESOLUTION; break; + case IBAT_VIRTUAL_CHANNEL: + /* For some reason we don't have calibrated data */ + if (!gpadc->cal_data[ADC_INPUT_IBAT].gain) { + res = ADC_CH_IBAT_MIN + (ADC_CH_IBAT_MAX - + ADC_CH_IBAT_MIN) * ad_value / + ADC_RESOLUTION; + break; + } + /* Here we can use the calibrated data */ + res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_IBAT].gain + + gpadc->cal_data[ADC_INPUT_IBAT].offset) + >> CALIB_SHIFT_IBAT; + break; + default: dev_err(gpadc->dev, "unknown channel, not possible to convert\n"); @@ -303,10 +345,20 @@ EXPORT_SYMBOL(ab8500_gpadc_convert); */ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) +{ + int raw_data; + raw_data = ab8500_gpadc_double_read_raw(gpadc, channel, + avg_sample, trig_edge, trig_timer, conv_type, NULL); + return raw_data; +} + +int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, + int *ibat) { int ret; int looplimit = 0; - u8 val, low_data, high_data; + u8 val, low_data, high_data, low_data2, high_data2; if (!gpadc) return -ENODEV; @@ -359,7 +411,6 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, default: val = channel | AVG_16; break; - } if (conv_type == ADC_HW) @@ -383,8 +434,8 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, ret = abx500_mask_and_set_register_interruptible(gpadc->dev, AB8500_GPADC, AB8500_GPADC_CTRL1_REG, EN_FALLING, EN_FALLING); - } + switch (channel) { case MAIN_CHARGER_C: case USB_CHARGER_C: @@ -401,6 +452,55 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, EN_BUF | EN_ICHAR, EN_BUF | EN_ICHAR); break; + + case XTAL_TEMP: + if (conv_type == ADC_HW) + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | EN_TRIG_EDGE, + EN_BUF | EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF , + EN_BUF); + break; + + case VBAT_TRUE_MEAS: + if (conv_type == ADC_HW) + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF | EN_TRIG_EDGE, + EN_BUF | EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF , + EN_BUF); + break; + + case BAT_CTRL_AND_IBAT: + case VBAT_MEAS_AND_IBAT: + case VBAT_TRUE_MEAS_AND_IBAT: + case BAT_TEMP_AND_IBAT: + if (conv_type == ADC_HW) + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_TRIG_EDGE, + EN_TRIG_EDGE); + else + ret = abx500_mask_and_set_register_interruptible( + gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + EN_BUF, + 0); + break; + case BTEMP_BALL: if (!is_ab8500_2p0_or_earlier(gpadc->parent)) { if (conv_type == ADC_HW) @@ -471,21 +571,19 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, /* wait for completion of conversion */ if (conv_type == ADC_HW) { if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, - 2*HZ)) { - dev_err(gpadc->dev, - "timeout didn't receive" - " hw GPADC conv interrupt\n"); - ret = -EINVAL; - goto out; + 2 * HZ)) { + dev_err(gpadc->dev, + "timeout didn't receive hw GPADC conv interrupt\n"); + ret = -EINVAL; + goto out; } } else { if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, - msecs_to_jiffies(CONVERSION_TIME))) { - dev_err(gpadc->dev, - "timeout didn't receive" - " sw GPADC conv interrupt\n"); - ret = -EINVAL; - goto out; + msecs_to_jiffies(CONVERSION_TIME))) { + dev_err(gpadc->dev, + "timeout didn't receive sw GPADC conv interrupt\n"); + ret = -EINVAL; + goto out; } } @@ -523,6 +621,46 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, goto out; } } + /* Check if double convertion is required */ + if ((channel == BAT_CTRL_AND_IBAT) || + (channel == VBAT_MEAS_AND_IBAT) || + (channel == VBAT_TRUE_MEAS_AND_IBAT) || + (channel == BAT_TEMP_AND_IBAT)) { + + if (conv_type == ADC_HW) { + /* not supported */ + ret = -ENOTSUPP; + dev_err(gpadc->dev, + "gpadc_conversion: only SW double conversion supported\n"); + goto out; + } else { + /* Read the converted RAW data 2 */ + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8540_GPADC_MANDATA2L_REG, + &low_data2); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw low data 2 failed\n"); + goto out; + } + + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8540_GPADC_MANDATA2H_REG, + &high_data2); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw high data 2 failed\n"); + goto out; + } + if (ibat != NULL) { + *ibat = (high_data2 << 8) | low_data2; + } else { + dev_warn(gpadc->dev, + "gpadc_conversion: ibat not stored\n"); + } + + } + } /* Disable GPADC */ ret = abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, @@ -586,15 +724,27 @@ static int otp_cal_regs[] = { AB8500_GPADC_CAL_7, }; +static int otp4_cal_regs[] = { + AB8540_GPADC_OTP4_REG_7, + AB8540_GPADC_OTP4_REG_6, + AB8540_GPADC_OTP4_REG_5, +}; + static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) { int i; int ret[ARRAY_SIZE(otp_cal_regs)]; u8 gpadc_cal[ARRAY_SIZE(otp_cal_regs)]; - + int ret_otp4[ARRAY_SIZE(otp4_cal_regs)]; + u8 gpadc_otp4[ARRAY_SIZE(otp4_cal_regs)]; int vmain_high, vmain_low; int btemp_high, btemp_low; int vbat_high, vbat_low; + int ibat_high, ibat_low; + s64 V_gain, V_offset, V2A_gain, V2A_offset; + struct ab8500 *ab8500; + + ab8500 = gpadc->parent; /* First we read all OTP registers and store the error code */ for (i = 0; i < ARRAY_SIZE(otp_cal_regs); i++) { @@ -614,7 +764,7 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * bt_h/l = btemp_high/low * vb_h/l = vbat_high/low * - * Data bits: + * Data bits 8500/9540: * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 * |.......|.......|.......|.......|.......|.......|.......|....... * | | vm_h9 | vm_h8 @@ -632,6 +782,35 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | * |.......|.......|.......|.......|.......|.......|.......|....... * + * Data bits 8540: + * OTP2 + * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vm_h9 | vm_h8 | vm_h7 | vm_h6 | vm_h5 | vm_h4 | vm_h3 | vm_h2 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vm_h1 | vm_h0 | vm_l4 | vm_l3 | vm_l2 | vm_l1 | vm_l0 | bt_h9 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | bt_h8 | bt_h7 | bt_h6 | bt_h5 | bt_h4 | bt_h3 | bt_h2 | bt_h1 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | bt_h0 | bt_l4 | bt_l3 | bt_l2 | bt_l1 | bt_l0 | vb_h9 | vb_h8 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vb_h7 | vb_h6 | vb_h5 | vb_h4 | vb_h3 | vb_h2 | vb_h1 | vb_h0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | + * |.......|.......|.......|.......|.......|.......|.......|....... + * + * Data bits 8540: + * OTP4 + * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | | ib_h9 | ib_h8 | ib_h7 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | ib_h6 | ib_h5 | ib_h4 | ib_h3 | ib_h2 | ib_h1 | ib_h0 | ib_l5 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | ib_l4 | ib_l3 | ib_l2 | ib_l1 | ib_l0 | + * * * Ideal output ADC codes corresponding to injected input voltages * during manufacturing is: @@ -644,38 +823,96 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * vbat_low: Vin = 2380mV / ADC ideal code = 33 */ - /* Calculate gain and offset for VMAIN if all reads succeeded */ - if (!(ret[0] < 0 || ret[1] < 0 || ret[2] < 0)) { - vmain_high = (((gpadc_cal[0] & 0x03) << 8) | - ((gpadc_cal[1] & 0x3F) << 2) | - ((gpadc_cal[2] & 0xC0) >> 6)); + if (is_ab8540(ab8500)) { + /* Calculate gain and offset for VMAIN if all reads succeeded*/ + if (!(ret[1] < 0 || ret[2] < 0)) { + vmain_high = (((gpadc_cal[1] & 0xFF) << 2) | + ((gpadc_cal[2] & 0xC0) >> 6)); + vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * + (19500 - 315) / (vmain_high - vmain_low); + gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * + 19500 - (CALIB_SCALE * (19500 - 315) / + (vmain_high - vmain_low)) * vmain_high; + } else { + gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + } - vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + /* Read IBAT calibration Data */ + for (i = 0; i < ARRAY_SIZE(otp4_cal_regs); i++) { + ret_otp4[i] = abx500_get_register_interruptible( + gpadc->dev, AB8500_OTP_EMUL, + otp4_cal_regs[i], &gpadc_otp4[i]); + if (ret_otp4[i] < 0) + dev_err(gpadc->dev, + "%s: read otp4 reg 0x%02x failed\n", + __func__, otp4_cal_regs[i]); + } - gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * - (19500 - 315) / (vmain_high - vmain_low); + /* Calculate gain and offset for IBAT if all reads succeeded */ + if (!(ret_otp4[0] < 0 || ret_otp4[1] < 0 || ret_otp4[2] < 0)) { + ibat_high = (((gpadc_otp4[0] & 0x07) << 7) | + ((gpadc_otp4[1] & 0xFE) >> 1)); + ibat_low = (((gpadc_otp4[1] & 0x01) << 5) | + ((gpadc_otp4[2] & 0xF8) >> 3)); + + V_gain = ((IBAT_VDROP_H - IBAT_VDROP_L) + << CALIB_SHIFT_IBAT) / (ibat_high - ibat_low); + + V_offset = (IBAT_VDROP_H << CALIB_SHIFT_IBAT) - + (((IBAT_VDROP_H - IBAT_VDROP_L) << + CALIB_SHIFT_IBAT) / (ibat_high - ibat_low)) + * ibat_high; + /* + * Result obtained is in mV (at a scale factor), + * we need to calculate gain and offset to get mA + */ + V2A_gain = (ADC_CH_IBAT_MAX - ADC_CH_IBAT_MIN)/ + (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); + V2A_offset = ((ADC_CH_IBAT_MAX_V * ADC_CH_IBAT_MIN - + ADC_CH_IBAT_MAX * ADC_CH_IBAT_MIN_V) + << CALIB_SHIFT_IBAT) + / (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); + + gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain; + gpadc->cal_data[ADC_INPUT_IBAT].offset = V_offset * + V2A_gain + V2A_offset; + } else { + gpadc->cal_data[ADC_INPUT_IBAT].gain = 0; + } - gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * 19500 - - (CALIB_SCALE * (19500 - 315) / - (vmain_high - vmain_low)) * vmain_high; + dev_dbg(gpadc->dev, "IBAT gain %llu offset %llu\n", + gpadc->cal_data[ADC_INPUT_IBAT].gain, + gpadc->cal_data[ADC_INPUT_IBAT].offset); } else { - gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + /* Calculate gain and offset for VMAIN if all reads succeeded */ + if (!(ret[0] < 0 || ret[1] < 0 || ret[2] < 0)) { + vmain_high = (((gpadc_cal[0] & 0x03) << 8) | + ((gpadc_cal[1] & 0x3F) << 2) | + ((gpadc_cal[2] & 0xC0) >> 6)); + vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * + (19500 - 315) / (vmain_high - vmain_low); + + gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * + 19500 - (CALIB_SCALE * (19500 - 315) / + (vmain_high - vmain_low)) * vmain_high; + } else { + gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + } } - /* Calculate gain and offset for BTEMP if all reads succeeded */ if (!(ret[2] < 0 || ret[3] < 0 || ret[4] < 0)) { btemp_high = (((gpadc_cal[2] & 0x01) << 9) | - (gpadc_cal[3] << 1) | - ((gpadc_cal[4] & 0x80) >> 7)); - + (gpadc_cal[3] << 1) | ((gpadc_cal[4] & 0x80) >> 7)); btemp_low = ((gpadc_cal[4] & 0x7C) >> 2); gpadc->cal_data[ADC_INPUT_BTEMP].gain = CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low); - gpadc->cal_data[ADC_INPUT_BTEMP].offset = CALIB_SCALE * 1300 - - (CALIB_SCALE * (1300 - 21) / - (btemp_high - btemp_low)) * btemp_high; + (CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low)) + * btemp_high; } else { gpadc->cal_data[ADC_INPUT_BTEMP].gain = 0; } @@ -687,7 +924,6 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) gpadc->cal_data[ADC_INPUT_VBAT].gain = CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low); - gpadc->cal_data[ADC_INPUT_VBAT].offset = CALIB_SCALE * 4700 - (CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low)) * vbat_high; diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 7694e7ab1880..4131437ace4b 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -12,19 +12,32 @@ /* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2 * and ADCHwSel[4:0] in GPADCCtrl3 ) */ -#define BAT_CTRL 0x01 -#define BTEMP_BALL 0x02 -#define MAIN_CHARGER_V 0x03 -#define ACC_DETECT1 0x04 -#define ACC_DETECT2 0x05 -#define ADC_AUX1 0x06 -#define ADC_AUX2 0x07 -#define MAIN_BAT_V 0x08 -#define VBUS_V 0x09 -#define MAIN_CHARGER_C 0x0A -#define USB_CHARGER_C 0x0B -#define BK_BAT_V 0x0C -#define DIE_TEMP 0x0D +#define BAT_CTRL 0x01 +#define BTEMP_BALL 0x02 +#define MAIN_CHARGER_V 0x03 +#define ACC_DETECT1 0x04 +#define ACC_DETECT2 0x05 +#define ADC_AUX1 0x06 +#define ADC_AUX2 0x07 +#define MAIN_BAT_V 0x08 +#define VBUS_V 0x09 +#define MAIN_CHARGER_C 0x0A +#define USB_CHARGER_C 0x0B +#define BK_BAT_V 0x0C +#define DIE_TEMP 0x0D +#define USB_ID 0x0E +#define XTAL_TEMP 0x12 +#define VBAT_TRUE_MEAS 0x13 +#define BAT_CTRL_AND_IBAT 0x1C +#define VBAT_MEAS_AND_IBAT 0x1D +#define VBAT_TRUE_MEAS_AND_IBAT 0x1E +#define BAT_TEMP_AND_IBAT 0x1F + +/* Virtual channel used only for ibat convertion to ampere + * Battery current conversion (ibat) cannot be requested as a single conversion + * but it is always in combination with other input requests + */ +#define IBAT_VIRTUAL_CHANNEL 0xFF #define SAMPLE_1 1 #define SAMPLE_4 4 @@ -37,7 +50,6 @@ #define ADC_SW 0 #define ADC_HW 1 - struct ab8500_gpadc; struct ab8500_gpadc *ab8500_gpadc_get(char *name); @@ -51,6 +63,9 @@ static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); +int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, + int *ibat); int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, int ad_value); -- cgit v1.2.3 From bc6b4132bcae4b8e59766ba2dae8f377009b26d0 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 26 Feb 2013 14:02:31 +0000 Subject: mfd: ab8500-debug: Add support for the AB8540 Allow GPADC debug information to be shown when executing on an AB8540 based platform. Signed-off-by: Alexandre Bourdiol Reviewed-by: Marcus COOPER Reviewed-by: Philippe LANGLAIS Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-debugfs.c | 286 +++++++++++++++++++++++++++++++- drivers/mfd/ab8500-gpadc.c | 44 +++++ include/linux/mfd/abx500/ab8500-gpadc.h | 3 + 3 files changed, 332 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index 074eea9e4bfd..1e44d65e1771 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -1633,6 +1633,254 @@ static const struct file_operations ab8500_gpadc_die_temp_fops = { .owner = THIS_MODULE, }; +static int ab8540_gpadc_xtal_temp_print(struct seq_file *s, void *p) +{ + int xtal_temp_raw; + int xtal_temp_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP, + avg_sample, trig_edge, trig_timer, conv_type); + xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP, + xtal_temp_raw); + + return seq_printf(s, "%d,0x%X\n", + xtal_temp_convert, xtal_temp_raw); +} + +static int ab8540_gpadc_xtal_temp_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8540_gpadc_xtal_temp_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_xtal_temp_fops = { + .open = ab8540_gpadc_xtal_temp_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_true_meas_print(struct seq_file *s, void *p) +{ + int vbat_true_meas_raw; + int vbat_true_meas_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS, + avg_sample, trig_edge, trig_timer, conv_type); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS, + vbat_true_meas_raw); + + return seq_printf(s, "%d,0x%X\n", + vbat_true_meas_convert, vbat_true_meas_raw); +} + +static int ab8540_gpadc_vbat_true_meas_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_true_meas_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_true_meas_fops = { + .open = ab8540_gpadc_vbat_true_meas_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_bat_ctrl_and_ibat_print(struct seq_file *s, void *p) +{ + int bat_ctrl_raw; + int bat_ctrl_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + + bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL, + bat_ctrl_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_ctrl_convert, bat_ctrl_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_bat_ctrl_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_bat_ctrl_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_bat_ctrl_and_ibat_fops = { + .open = ab8540_gpadc_bat_ctrl_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_meas_and_ibat_print(struct seq_file *s, void *p) +{ + int vbat_meas_raw; + int vbat_meas_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, + vbat_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_meas_convert, vbat_meas_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_vbat_meas_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_meas_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_meas_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_true_meas_and_ibat_print(struct seq_file *s, void *p) +{ + int vbat_true_meas_raw; + int vbat_true_meas_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc, + VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge, + trig_timer, conv_type, &ibat_raw); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, + VBAT_TRUE_MEAS, vbat_true_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_true_meas_convert, vbat_true_meas_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_vbat_true_meas_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_true_meas_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_true_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_true_meas_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_bat_temp_and_ibat_print(struct seq_file *s, void *p) +{ + int bat_temp_raw; + int bat_temp_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, + bat_temp_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_temp_convert, bat_temp_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_bat_temp_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_bat_temp_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_bat_temp_and_ibat_fops = { + .open = ab8540_gpadc_bat_temp_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_otp_cal_print(struct seq_file *s, void *p) +{ + struct ab8500_gpadc *gpadc; + u16 vmain_l, vmain_h, btemp_l, btemp_h; + u16 vbat_l, vbat_h, ibat_l, ibat_h; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h, + &vbat_l, &vbat_h, &ibat_l, &ibat_h); + return seq_printf(s, "VMAIN_L:0x%X\n" + "VMAIN_H:0x%X\n" + "BTEMP_L:0x%X\n" + "BTEMP_H:0x%X\n" + "VBAT_L:0x%X\n" + "VBAT_H:0x%X\n" + "IBAT_L:0x%X\n" + "IBAT_H:0x%X\n" + , + vmain_l, + vmain_h, + btemp_l, + btemp_h, + vbat_l, + vbat_h, + ibat_l, + ibat_h); +} + +static int ab8540_gpadc_otp_cal_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8540_gpadc_otp_cal_print, inode->i_private); +} + +static const struct file_operations ab8540_gpadc_otp_calib_fops = { + .open = ab8540_gpadc_otp_cal_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p) { return seq_printf(s, "%d\n", avg_sample); @@ -2386,7 +2634,43 @@ static int ab8500_debug_probe(struct platform_device *plf) ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops); if (!file) goto err; - + if (is_ab8540(ab8500)) { + file = debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_xtal_temp_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, + &ab8540_gpadc_vbat_true_meas_fops); + if (!file) + goto err; + file = debugfs_create_file("batctrl_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_ctrl_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbatmeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_true_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("battemp_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("otp_calib", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_otp_calib_fops); + if (!file) + goto err; + } file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_avg_sample_fops); if (!file) diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index c985b90577f6..e3535c74d5fe 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -135,6 +135,8 @@ enum cal_channels { struct adc_cal_data { s64 gain; s64 offset; + u16 otp_calib_hi; + u16 otp_calib_lo; }; /** @@ -829,6 +831,12 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) vmain_high = (((gpadc_cal[1] & 0xFF) << 2) | ((gpadc_cal[2] & 0xC0) >> 6)); vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * (19500 - 315) / (vmain_high - vmain_low); gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * @@ -856,6 +864,11 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) ibat_low = (((gpadc_otp4[1] & 0x01) << 5) | ((gpadc_otp4[2] & 0xF8) >> 3)); + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi = + (u16)ibat_high; + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo = + (u16)ibat_low; + V_gain = ((IBAT_VDROP_H - IBAT_VDROP_L) << CALIB_SHIFT_IBAT) / (ibat_high - ibat_low); @@ -892,6 +905,11 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) ((gpadc_cal[2] & 0xC0) >> 6)); vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * (19500 - 315) / (vmain_high - vmain_low); @@ -902,12 +920,16 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; } } + /* Calculate gain and offset for BTEMP if all reads succeeded */ if (!(ret[2] < 0 || ret[3] < 0 || ret[4] < 0)) { btemp_high = (((gpadc_cal[2] & 0x01) << 9) | (gpadc_cal[3] << 1) | ((gpadc_cal[4] & 0x80) >> 7)); btemp_low = ((gpadc_cal[4] & 0x7C) >> 2); + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi = (u16)btemp_high; + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo = (u16)btemp_low; + gpadc->cal_data[ADC_INPUT_BTEMP].gain = CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low); gpadc->cal_data[ADC_INPUT_BTEMP].offset = CALIB_SCALE * 1300 - @@ -922,6 +944,9 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) vbat_high = (((gpadc_cal[4] & 0x03) << 8) | gpadc_cal[5]); vbat_low = ((gpadc_cal[6] & 0xFC) >> 2); + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi = (u16)vbat_high; + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo = (u16)vbat_low; + gpadc->cal_data[ADC_INPUT_VBAT].gain = CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low); gpadc->cal_data[ADC_INPUT_VBAT].offset = CALIB_SCALE * 4700 - @@ -1131,6 +1156,25 @@ static void __exit ab8500_gpadc_exit(void) platform_driver_unregister(&ab8500_gpadc_driver); } +/** + * ab8540_gpadc_get_otp() - returns OTP values + * + */ +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h) +{ + *vmain_l = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo; + *vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi; + *btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo; + *btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi; + *vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo; + *vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi; + *ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo; + *ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi; + return ; +} + subsys_initcall_sync(ab8500_gpadc_init); module_exit(ab8500_gpadc_exit); diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 4131437ace4b..49ded001049b 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -68,5 +68,8 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, int *ibat); int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, int ad_value); +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h); #endif /* _AB8500_GPADC_H */ -- cgit v1.2.3 From 93ff722e88530b9719cbf53be4f3197722461394 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 31 May 2012 16:16:36 +0200 Subject: ab8500-fg: Add power cut feature for ab8505 and ab8540 Add support for a power cut feature which allows user to configure when ab8505 and ab8540 based platforms should shut down system due to low battery. Signed-off-by: Lee Jones --- drivers/mfd/ab8500-core.c | 36 +++ drivers/power/ab8500_bmdata.c | 5 + drivers/power/ab8500_fg.c | 474 +++++++++++++++++++++++++++++++++++ include/linux/mfd/abx500.h | 10 + include/linux/mfd/abx500/ab8500-bm.h | 18 ++ 5 files changed, 543 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index c7ff55753a8f..f276352cc9ef 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -113,6 +113,7 @@ #define AB8500_SWITCH_OFF_STATUS 0x00 #define AB8500_TURN_ON_STATUS 0x00 +#define AB8505_TURN_ON_STATUS_2 0x04 #define AB8500_CH_USBCH_STAT1_REG 0x02 #define VBUS_DET_DBNC100 0x02 @@ -1401,6 +1402,21 @@ static ssize_t show_turn_on_status(struct device *dev, return sprintf(buf, "%#x\n", value); } +static ssize_t show_turn_on_status_2(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u8 value; + struct ab8500 *ab8500; + + ab8500 = dev_get_drvdata(dev); + ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK, + AB8505_TURN_ON_STATUS_2, &value); + if (ret < 0) + return ret; + return sprintf(buf, "%#x\n", (value & 0x1)); +} + static ssize_t show_ab9540_dbbrstn(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1457,6 +1473,7 @@ exit: static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL); static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL); static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL); +static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL); static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR, show_ab9540_dbbrstn, store_ab9540_dbbrstn); @@ -1467,6 +1484,11 @@ static struct attribute *ab8500_sysfs_entries[] = { NULL, }; +static struct attribute *ab8505_sysfs_entries[] = { + &dev_attr_turn_on_status_2.attr, + NULL, +}; + static struct attribute *ab9540_sysfs_entries[] = { &dev_attr_chip_id.attr, &dev_attr_switch_off_status.attr, @@ -1479,6 +1501,10 @@ static struct attribute_group ab8500_attr_group = { .attrs = ab8500_sysfs_entries, }; +static struct attribute_group ab8505_attr_group = { + .attrs = ab8505_sysfs_entries, +}; + static struct attribute_group ab9540_attr_group = { .attrs = ab9540_sysfs_entries, }; @@ -1719,6 +1745,12 @@ static int ab8500_probe(struct platform_device *pdev) else ret = sysfs_create_group(&ab8500->dev->kobj, &ab8500_attr_group); + + if ((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) + ret = sysfs_create_group(&ab8500->dev->kobj, + &ab8505_attr_group); + if (ret) dev_err(ab8500->dev, "error creating sysfs entries\n"); @@ -1735,6 +1767,10 @@ static int ab8500_remove(struct platform_device *pdev) else sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group); + if ((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) + sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group); + mfd_remove_devices(ab8500->dev); return 0; diff --git a/drivers/power/ab8500_bmdata.c b/drivers/power/ab8500_bmdata.c index 7a96c0650fbb..e8759763fbe0 100644 --- a/drivers/power/ab8500_bmdata.c +++ b/drivers/power/ab8500_bmdata.c @@ -407,6 +407,11 @@ static const struct abx500_fg_parameters fg = { .battok_raising_th_sel1 = 2860, .maint_thres = 95, .user_cap_limit = 15, + .pcut_enable = 1, + .pcut_max_time = 127, + .pcut_flag_time = 112, + .pcut_max_restart = 15, + .pcut_debounce_time = 2, }; static const struct abx500_maxim_parameters maxi_params = { diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c index 25dae4c4b0ef..92f342bcf188 100644 --- a/drivers/power/ab8500_fg.c +++ b/drivers/power/ab8500_fg.c @@ -2344,6 +2344,50 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) dev_err(di->dev, "BattOk init write failed.\n"); goto out; } + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(di->dev) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, di->bm->fg_params->pcut_max_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_MAX_TIME_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, di->bm->fg_params->pcut_flag_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_FLAG_TIME_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, di->bm->fg_params->pcut_max_restart); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_RESTART_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, di->bm->fg_params->pcut_debounce_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_DEBOUNCE_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, di->bm->fg_params->pcut_enable); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_CTL_STATUS_REG\n", __func__); + goto out; + }; + } out: return ret; } @@ -2546,6 +2590,428 @@ static int ab8500_fg_sysfs_init(struct ab8500_fg *di) return ret; } + +static ssize_t ab8505_powercut_flagtime_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_FLAG_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_flagtime_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + long unsigned reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + + if (reg_value > 0x7F) { + dev_err(dev, "Incorrect parameter, echo 0 (1.98s) - 127 (15.625ms) for flagtime\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_FLAG_TIME_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_maxtime_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_MAX_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; + +} + +static ssize_t ab8505_powercut_maxtime_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x7F) { + dev_err(dev, "Incorrect parameter, echo 0 (0.0s) - 127 (1.98s) for maxtime\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_MAX_TIME_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_restart_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_RESTART_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0xF)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_restart_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0xF) { + dev_err(dev, "Incorrect parameter, echo 0 - 15 for number of restart\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_RESTART_REG\n"); + +fail: + return count; + +} + +static ssize_t ab8505_powercut_timer_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_restart_counter_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_RESTART_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0xF0) >> 4); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) + goto fail; + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x1)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x1) { + dev_err(dev, "Incorrect parameter, echo 0/1 to disable/enable Pcut feature\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_flag_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", ((reg_value & 0x10) >> 4)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_debounce_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_DEBOUNCE_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_debounce_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x7) { + dev_err(dev, "Incorrect parameter, echo 0 to 7 for debounce setting\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_DEBOUNCE_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_enable_status_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", ((reg_value & 0x20) >> 5)); + +fail: + return ret; +} + +static struct device_attribute ab8505_fg_sysfs_psy_attrs[] = { + __ATTR(powercut_flagtime, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_flagtime_read, ab8505_powercut_flagtime_write), + __ATTR(powercut_maxtime, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_maxtime_read, ab8505_powercut_maxtime_write), + __ATTR(powercut_restart_max, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_restart_read, ab8505_powercut_restart_write), + __ATTR(powercut_timer, S_IRUGO, ab8505_powercut_timer_read, NULL), + __ATTR(powercut_restart_counter, S_IRUGO, + ab8505_powercut_restart_counter_read, NULL), + __ATTR(powercut_enable, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_read, ab8505_powercut_write), + __ATTR(powercut_flag, S_IRUGO, ab8505_powercut_flag_read, NULL), + __ATTR(powercut_debounce_time, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_debounce_read, ab8505_powercut_debounce_write), + __ATTR(powercut_enable_status, S_IRUGO, + ab8505_powercut_enable_status_read, NULL), +}; + +static int ab8500_fg_sysfs_psy_create_attrs(struct device *dev) +{ + unsigned int i, j; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + for (j = 0; j < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); j++) + if (device_create_file(dev, &ab8505_fg_sysfs_psy_attrs[j])) + goto sysfs_psy_create_attrs_failed_ab8505; + } + return 0; +sysfs_psy_create_attrs_failed_ab8505: + dev_err(dev, "Failed creating sysfs psy attrs for ab8505.\n"); + while (j--) + device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]); + + return -EIO; +} + +static void ab8500_fg_sysfs_psy_remove_attrs(struct device *dev) +{ + unsigned int i; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + for (i = 0; i < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); i++) + (void)device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]); + } +} + /* Exposure to the sysfs interface <> */ #if defined(CONFIG_PM) @@ -2607,6 +3073,7 @@ static int ab8500_fg_remove(struct platform_device *pdev) ab8500_fg_sysfs_exit(di); flush_scheduled_work(); + ab8500_fg_sysfs_psy_remove_attrs(di->fg_psy.dev); power_supply_unregister(&di->fg_psy); platform_set_drvdata(pdev, NULL); return ret; @@ -2772,6 +3239,13 @@ static int ab8500_fg_probe(struct platform_device *pdev) goto free_irq; } + ret = ab8500_fg_sysfs_psy_create_attrs(di->fg_psy.dev); + if (ret) { + dev_err(di->dev, "failed to create FG psy\n"); + ab8500_fg_sysfs_exit(di); + goto free_irq; + } + /* Calibrate the fg first time */ di->flags.calibrate = true; di->calib_state = AB8500_FG_CALIB_INIT; diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 9ead60bc66b7..188aedc322c2 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -89,6 +89,11 @@ struct abx500_fg; * points. * @maint_thres This is the threshold where we stop reporting * battery full while in maintenance, in per cent + * @pcut_enable: Enable power cut feature in ab8505 + * @pcut_max_time: Max time threshold + * @pcut_flag_time: Flagtime threshold + * @pcut_max_restart: Max number of restarts + * @pcut_debounce_time: Sets battery debounce time */ struct abx500_fg_parameters { int recovery_sleep_timer; @@ -106,6 +111,11 @@ struct abx500_fg_parameters { int battok_raising_th_sel1; int user_cap_limit; int maint_thres; + bool pcut_enable; + u8 pcut_max_time; + u8 pcut_flag_time; + u8 pcut_max_restart; + u8 pcut_debounce_time; }; /** diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 8d35bfe164c8..0efbe0efee7f 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -235,6 +235,14 @@ /* Battery type */ #define BATTERY_UNKNOWN 00 +/* Registers for pcut feature in ab8505 and ab9540 */ +#define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12 +#define AB8505_RTC_PCUT_TIME_REG 0x13 +#define AB8505_RTC_PCUT_MAX_TIME_REG 0x14 +#define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15 +#define AB8505_RTC_PCUT_RESTART_REG 0x16 +#define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17 + /** * struct res_to_temp - defines one point in a temp to res curve. To * be used in battery packs that combines the identification resistor with a @@ -283,6 +291,11 @@ struct ab8500_fg; * points. * @maint_thres This is the threshold where we stop reporting * battery full while in maintenance, in per cent + * @pcut_enable: Enable power cut feature in ab8505 + * @pcut_max_time: Max time threshold + * @pcut_flag_time: Flagtime threshold + * @pcut_max_restart: Max number of restarts + * @pcut_debunce_time: Sets battery debounce time */ struct ab8500_fg_parameters { int recovery_sleep_timer; @@ -299,6 +312,11 @@ struct ab8500_fg_parameters { int battok_raising_th_sel1; int user_cap_limit; int maint_thres; + bool pcut_enable; + u8 pcut_max_time; + u8 pcut_flag_time; + u8 pcut_max_restart; + u8 pcut_debunce_time; }; /** -- cgit v1.2.3 From 0f4aa401853e07885707aedfc68c608051b0d6e4 Mon Sep 17 00:00:00 2001 From: Yang QU Date: Tue, 26 Jun 2012 19:25:52 +0800 Subject: ab8500-charger: Add backup battery charge voltages on the ab8540 Add 2.7v, 2.9v, 3.0v, 3.2v and 3.3v charging voltages for backup battery. Before that only 2.5v, 2.6v, 2.8v, 3.1v were available. Signed-off-by: Yang QU Signed-off-by: Lee Jones Reviewed-by: Maxime COQUELIN Reviewed-by: Marcus COOPER Tested-by: Xiao Mei ZHANG --- drivers/power/ab8500_charger.c | 19 +++++++++++++++++-- include/linux/mfd/abx500/ab8500-bm.h | 24 ++++++++++++++++++++---- 2 files changed, 37 insertions(+), 6 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 24b30b7ea5ca..fd3fa2beca2b 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -2836,6 +2836,7 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy, static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) { int ret = 0; + u8 bup_vch_range = 0, vbup33_vrtcn = 0; /* Setup maximum charger current and voltage for ABB cut2.0 */ if (!is_ab8500_1p1_or_earlier(di->parent)) { @@ -2945,15 +2946,29 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) } /* Backup battery voltage and current */ + if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V) + bup_vch_range = BUP_VCH_RANGE; + if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V) + vbup33_vrtcn = VBUP33_VRTCN; + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8500_RTC_BACKUP_CHG_REG, - di->bm->bkup_bat_v | - di->bm->bkup_bat_i); + (di->bm->bkup_bat_v & 0x3) | di->bm->bkup_bat_i); if (ret) { dev_err(di->dev, "failed to setup backup battery charging\n"); goto out; } + if (is_ab8540(di->parent)) { + ret = abx500_set_register_interruptible(di->dev, + AB8500_RTC, + AB8500_RTC_CTRL1_REG, + bup_vch_range | vbup33_vrtcn); + if (ret) { + dev_err(di->dev, "failed to setup backup battery charging\n"); + goto out; + } + } /* Enable backup battery charging */ abx500_mask_and_set_register_interruptible(di->dev, diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 0efbe0efee7f..a73e05a0441b 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -105,6 +105,7 @@ #define AB8500_RTC_BACKUP_CHG_REG 0x0C #define AB8500_RTC_CC_CONF_REG 0x01 #define AB8500_RTC_CTRL_REG 0x0B +#define AB8500_RTC_CTRL1_REG 0x11 /* * OTP register offsets @@ -179,10 +180,25 @@ #define BUP_ICH_SEL_300UA 0x08 #define BUP_ICH_SEL_700UA 0x0C -#define BUP_VCH_SEL_2P5V 0x00 -#define BUP_VCH_SEL_2P6V 0x01 -#define BUP_VCH_SEL_2P8V 0x02 -#define BUP_VCH_SEL_3P1V 0x03 +enum bup_vch_sel { + BUP_VCH_SEL_2P5V, + BUP_VCH_SEL_2P6V, + BUP_VCH_SEL_2P8V, + BUP_VCH_SEL_3P1V, + /* + * Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v + * are only available on ab8540. You can't choose these 5 + * voltage on ab8500/ab8505/ab9540. + */ + BUP_VCH_SEL_2P7V, + BUP_VCH_SEL_2P9V, + BUP_VCH_SEL_3P0V, + BUP_VCH_SEL_3P2V, + BUP_VCH_SEL_3P3V, +}; + +#define BUP_VCH_RANGE 0x02 +#define VBUP33_VRTCN 0x01 /* Battery OVV constants */ #define BATT_OVV_ENA 0x02 -- cgit v1.2.3 From 4dcdf57773fd45b483fc7613b9e51b89a57d655c Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 14 Feb 2013 09:24:10 +0000 Subject: ab8500-bm: Quick re-attach charging behaviour Due to a bug in some AB8500 ASICs charger removal cannot always be detected if the removal and reinsertion is done to close in time. This patch detects above described case and handles the situation so that charging will be kept turned on. Signed-off-by: Lee Jones --- drivers/power/ab8500_charger.c | 105 +++++++++++++++++++++++++++++- drivers/power/abx500_chargalg.c | 33 ++++++++++ include/linux/mfd/abx500/ux500_chargalg.h | 1 + 3 files changed, 137 insertions(+), 2 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index dcd3c6feca97..3eb23cf9ff47 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -52,6 +52,7 @@ #define VBUS_DET_DBNC100 0x02 #define VBUS_DET_DBNC1 0x01 #define OTP_ENABLE_WD 0x01 +#define DROP_COUNT_RESET 0x01 #define MAIN_CH_INPUT_CURR_SHIFT 4 #define VBUS_IN_CURR_LIM_SHIFT 4 @@ -1677,6 +1678,105 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, return ret; } +/** + * ab8500_charger_usb_check_enable() - enable usb charging + * @charger: pointer to the ux500_charger structure + * @vset: charging voltage + * @iset: charger output current + * + * Check if the VBUS charger has been disconnected and reconnected without + * AB8500 rising an interrupt. Returns 0 on success. + */ +static int ab8500_charger_usb_check_enable(struct ux500_charger *charger, + int vset, int iset) +{ + u8 usbch_ctrl1 = 0; + int ret = 0; + + struct ab8500_charger *di = to_ab8500_charger_usb_device_info(charger); + + if (!di->usb.charger_connected) + return ret; + + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_USBCH_CTRL1_REG, &usbch_ctrl1); + if (ret < 0) { + dev_err(di->dev, "ab8500 read failed %d\n", __LINE__); + return ret; + } + dev_dbg(di->dev, "USB charger ctrl: 0x%02x\n", usbch_ctrl1); + + if (!(usbch_ctrl1 & USB_CH_ENA)) { + dev_info(di->dev, "Charging has been disabled abnormally and will be re-enabled\n"); + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CHARGER_CTRL, + DROP_COUNT_RESET, DROP_COUNT_RESET); + if (ret < 0) { + dev_err(di->dev, "ab8500 write failed %d\n", __LINE__); + return ret; + } + + ret = ab8500_charger_usb_en(&di->usb_chg, true, vset, iset); + if (ret < 0) { + dev_err(di->dev, "Failed to enable VBUS charger %d\n", + __LINE__); + return ret; + } + } + return ret; +} + +/** + * ab8500_charger_ac_check_enable() - enable usb charging + * @charger: pointer to the ux500_charger structure + * @vset: charging voltage + * @iset: charger output current + * + * Check if the AC charger has been disconnected and reconnected without + * AB8500 rising an interrupt. Returns 0 on success. + */ +static int ab8500_charger_ac_check_enable(struct ux500_charger *charger, + int vset, int iset) +{ + u8 mainch_ctrl1 = 0; + int ret = 0; + + struct ab8500_charger *di = to_ab8500_charger_ac_device_info(charger); + + if (!di->ac.charger_connected) + return ret; + + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_MCH_CTRL1, &mainch_ctrl1); + if (ret < 0) { + dev_err(di->dev, "ab8500 read failed %d\n", __LINE__); + return ret; + } + dev_dbg(di->dev, "AC charger ctrl: 0x%02x\n", mainch_ctrl1); + + if (!(mainch_ctrl1 & MAIN_CH_ENA)) { + dev_info(di->dev, "Charging has been disabled abnormally and will be re-enabled\n"); + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CHARGER_CTRL, + DROP_COUNT_RESET, DROP_COUNT_RESET); + + if (ret < 0) { + dev_err(di->dev, "ab8500 write failed %d\n", __LINE__); + return ret; + } + + ret = ab8500_charger_ac_en(&di->usb_chg, true, vset, iset); + if (ret < 0) { + dev_err(di->dev, "failed to enable AC charger %d\n", + __LINE__); + return ret; + } + } + return ret; +} + /** * ab8500_charger_watchdog_kick() - kick charger watchdog * @di: pointer to the ab8500_charger structure @@ -1734,8 +1834,7 @@ static int ab8500_charger_update_charger_current(struct ux500_charger *charger, /* Reset the main and usb drop input current measurement counter */ ret = abx500_set_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CHARGER_CTRL, - 0x1); + AB8500_CHARGER_CTRL, DROP_COUNT_RESET); if (ret) { dev_err(di->dev, "%s write failed\n", __func__); return ret; @@ -3221,6 +3320,7 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->ac_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface), /* ux500_charger sub-class */ di->ac_chg.ops.enable = &ab8500_charger_ac_en; + di->ac_chg.ops.check_enable = &ab8500_charger_ac_check_enable; di->ac_chg.ops.kick_wd = &ab8500_charger_watchdog_kick; di->ac_chg.ops.update_curr = &ab8500_charger_update_charger_current; di->ac_chg.max_out_volt = ab8500_charger_voltage_map[ @@ -3242,6 +3342,7 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->usb_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface), /* ux500_charger sub-class */ di->usb_chg.ops.enable = &ab8500_charger_usb_en; + di->usb_chg.ops.check_enable = &ab8500_charger_usb_check_enable; di->usb_chg.ops.kick_wd = &ab8500_charger_watchdog_kick; di->usb_chg.ops.update_curr = &ab8500_charger_update_charger_current; di->usb_chg.max_out_volt = ab8500_charger_voltage_map[ diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c index 31507bfe549c..8ab65a3a8190 100644 --- a/drivers/power/abx500_chargalg.c +++ b/drivers/power/abx500_chargalg.c @@ -305,6 +305,30 @@ static void abx500_chargalg_state_to(struct abx500_chargalg *di, di->charge_state = state; } +static int abx500_chargalg_check_charger_enable(struct abx500_chargalg *di) +{ + switch (di->charge_state) { + case STATE_NORMAL: + case STATE_MAINTENANCE_A: + case STATE_MAINTENANCE_B: + break; + default: + return 0; + } + + if (di->chg_info.charger_type & USB_CHG) { + return di->usb_chg->ops.check_enable(di->usb_chg, + di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, + di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); + } else if ((di->chg_info.charger_type & AC_CHG) && + !(di->ac_chg->external)) { + return di->ac_chg->ops.check_enable(di->ac_chg, + di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, + di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); + } + return 0; +} + /** * abx500_chargalg_check_charger_connection() - Check charger connection change * @di: pointer to the abx500_chargalg structure @@ -1219,6 +1243,7 @@ static void abx500_chargalg_external_power_changed(struct power_supply *psy) static void abx500_chargalg_algorithm(struct abx500_chargalg *di) { int charger_status; + int ret; /* Collect data from all power_supply class devices */ class_for_each_device(power_supply_class, NULL, @@ -1229,6 +1254,14 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) abx500_chargalg_check_charger_voltage(di); charger_status = abx500_chargalg_check_charger_connection(di); + + if (is_ab8500(di->parent)) { + ret = abx500_chargalg_check_charger_enable(di); + if (ret < 0) + dev_err(di->dev, "Checking charger is enabled error" + ": Returned Value %d\n", ret); + } + /* * First check if we have a charger connected. * Also we don't allow charging of unknown batteries if configured diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index d43ac0f35526..110d12f09548 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -17,6 +17,7 @@ struct ux500_charger; struct ux500_charger_ops { int (*enable) (struct ux500_charger *, int, int, int); + int (*check_enable) (struct ux500_charger *, int, int); int (*kick_wd) (struct ux500_charger *); int (*update_curr) (struct ux500_charger *, int); }; -- cgit v1.2.3 From 8891716e24d7b0f4b1c3b4fdff641bcb1fb282c4 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 13 Feb 2013 11:39:19 +0000 Subject: ab8500-bm: Charge only mode fixes for the ab9540 Fix for charging not getting enabled in charge only mode by external charger. Signed-off-by: Lee Jones --- drivers/power/ab8500_charger.c | 42 +++++++++++++++++++++++++++++++ drivers/power/abx500_chargalg.c | 14 +++++++++++ drivers/power/pm2301_charger.c | 7 ++++++ include/linux/mfd/abx500/ux500_chargalg.h | 2 ++ 4 files changed, 65 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 3eb23cf9ff47..f1d712308b02 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -97,6 +98,10 @@ #define AB8500_SW_CONTROL_FALLBACK 0x03 /* Wait for enumeration before charing in us */ #define WAIT_ACA_RID_ENUMERATION (5 * 1000) +/*External charger control*/ +#define AB8500_SYS_CHARGER_CONTROL_REG 0x52 +#define EXTERNAL_CHARGER_DISABLE_REG_VAL 0x03 +#define EXTERNAL_CHARGER_ENABLE_REG_VAL 0x07 /* UsbLineStatus register - usb types */ enum ab8500_charger_link_status { @@ -1678,6 +1683,29 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, return ret; } +static int ab8500_external_charger_prepare(struct notifier_block *charger_nb, + unsigned long event, void *data) +{ + int ret; + struct device *dev = data; + /*Toggle External charger control pin*/ + ret = abx500_set_register_interruptible(dev, AB8500_SYS_CTRL1_BLOCK, + AB8500_SYS_CHARGER_CONTROL_REG, + EXTERNAL_CHARGER_DISABLE_REG_VAL); + if (ret < 0) { + dev_err(dev, "write reg failed %d\n", ret); + goto out; + } + ret = abx500_set_register_interruptible(dev, AB8500_SYS_CTRL1_BLOCK, + AB8500_SYS_CHARGER_CONTROL_REG, + EXTERNAL_CHARGER_ENABLE_REG_VAL); + if (ret < 0) + dev_err(dev, "Write reg failed %d\n", ret); + +out: + return ret; +} + /** * ab8500_charger_usb_check_enable() - enable usb charging * @charger: pointer to the ux500_charger structure @@ -3221,6 +3249,10 @@ static int ab8500_charger_suspend(struct platform_device *pdev, #define ab8500_charger_resume NULL #endif +static struct notifier_block charger_nb = { + .notifier_call = ab8500_external_charger_prepare, +}; + static int ab8500_charger_remove(struct platform_device *pdev) { struct ab8500_charger *di = platform_get_drvdata(pdev); @@ -3250,6 +3282,11 @@ static int ab8500_charger_remove(struct platform_device *pdev) /* Delete the work queue */ destroy_workqueue(di->charger_wq); + /* Unregister external charger enable notifier */ + if (!di->ac_chg.enabled) + blocking_notifier_chain_unregister( + &charger_notifier_list, &charger_nb); + flush_scheduled_work(); if (di->usb_chg.enabled) power_supply_unregister(&di->usb_chg.psy); @@ -3331,6 +3368,11 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->ac_chg.enabled = di->bm->ac_enabled; di->ac_chg.external = false; + /*notifier for external charger enabling*/ + if (!di->ac_chg.enabled) + blocking_notifier_chain_register( + &charger_notifier_list, &charger_nb); + /* USB supply */ /* power_supply base class */ di->usb_chg.psy.name = "ab8500_usb"; diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c index 8ab65a3a8190..a876976678ab 100644 --- a/drivers/power/abx500_chargalg.c +++ b/drivers/power/abx500_chargalg.c @@ -26,6 +26,7 @@ #include #include #include +#include /* Watchdog kick interval */ #define CHG_WD_INTERVAL (6 * HZ) @@ -243,6 +244,9 @@ struct abx500_chargalg { struct kobject chargalg_kobject; }; +/*External charger prepare notifier*/ +BLOCKING_NOTIFIER_HEAD(charger_notifier_list); + /* Main battery properties */ static enum power_supply_property abx500_chargalg_props[] = { POWER_SUPPLY_PROP_STATUS, @@ -503,6 +507,8 @@ static int abx500_chargalg_kick_watchdog(struct abx500_chargalg *di) static int abx500_chargalg_ac_en(struct abx500_chargalg *di, int enable, int vset, int iset) { + static int abx500_chargalg_ex_ac_enable_toggle; + if (!di->ac_chg || !di->ac_chg->ops.enable) return -ENXIO; @@ -515,6 +521,14 @@ static int abx500_chargalg_ac_en(struct abx500_chargalg *di, int enable, di->chg_info.ac_iset = iset; di->chg_info.ac_vset = vset; + /* Enable external charger */ + if (enable && di->ac_chg->external && + !abx500_chargalg_ex_ac_enable_toggle) { + blocking_notifier_call_chain(&charger_notifier_list, + 0, di->dev); + abx500_chargalg_ex_ac_enable_toggle++; + } + return di->ac_chg->ops.enable(di->ac_chg, enable, vset, iset); } diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c index b560fa5ac4e7..45ef3b9de6b9 100644 --- a/drivers/power/pm2301_charger.c +++ b/drivers/power/pm2301_charger.c @@ -1059,6 +1059,13 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, ret = pm2xxx_charger_detection(pm2, &val); if ((ret == 0) && val) { + /* + * When boot is due to AC charger plug-in, + * read interrupt registers + */ + pm2xxx_reg_read(pm2, PM2XXX_REG_INT1, &val); + pm2xxx_reg_read(pm2, PM2XXX_REG_INT2, &val); + pm2xxx_reg_read(pm2, PM2XXX_REG_INT4, &val); pm2->ac.charger_connected = 1; pm2->ac_conn = true; power_supply_changed(&pm2->ac_chg.psy); diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index 110d12f09548..fa831f1e8cf8 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -41,4 +41,6 @@ struct ux500_charger { bool external; }; +extern struct blocking_notifier_head charger_notifier_list; + #endif -- cgit v1.2.3 From db43e6c473b57d4e7a55c4bd6edef71f40f13eae Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 14 Feb 2013 12:39:15 +0000 Subject: ab8500-bm: Add usb power path support AB8540 supports power path function in USB charging mode for fast power up with dead and weak battery, and it could extend the battery age. When USB charging starts, if the Vbattrue is below than SW cut off voltage, power path and pre-charge should be enabled. If Vbattrue is higher than SW cut off voltage, power path and pre-charge should be disabled. This is to make sure full current to battery charge. At the end of charge, power path should be enable again to reduce charging the battery again. Signed-off-by: Lee Jones --- drivers/power/ab8500_charger.c | 81 +++++++++++++++++++++++++++++++ drivers/power/abx500_chargalg.c | 62 +++++++++++++++++++++++ include/linux/mfd/abx500.h | 1 + include/linux/mfd/abx500/ab8500-bm.h | 12 +++++ include/linux/mfd/abx500/ux500_chargalg.h | 4 ++ 5 files changed, 160 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 6fea4fdf8701..f249a65b02e1 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -1925,6 +1925,67 @@ static int ab8500_charger_update_charger_current(struct ux500_charger *charger, return ret; } +/** + * ab8540_charger_power_path_enable() - enable usb power path mode + * @charger: pointer to the ux500_charger structure + * @enable: enable/disable flag + * + * Enable or disable the power path for usb mode + * Returns error code in case of failure else 0(on success) + */ +static int ab8540_charger_power_path_enable(struct ux500_charger *charger, + bool enable) +{ + int ret; + struct ab8500_charger *di; + + if (charger->psy.type == POWER_SUPPLY_TYPE_USB) + di = to_ab8500_charger_usb_device_info(charger); + else + return -ENXIO; + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_MODE_REG, + BUS_POWER_PATH_MODE_ENA, enable); + if (ret) { + dev_err(di->dev, "%s write failed\n", __func__); + return ret; + } + + return ret; +} + + +/** + * ab8540_charger_usb_pre_chg_enable() - enable usb pre change + * @charger: pointer to the ux500_charger structure + * @enable: enable/disable flag + * + * Enable or disable the pre-chage for usb mode + * Returns error code in case of failure else 0(on success) + */ +static int ab8540_charger_usb_pre_chg_enable(struct ux500_charger *charger, + bool enable) +{ + int ret; + struct ab8500_charger *di; + + if (charger->psy.type == POWER_SUPPLY_TYPE_USB) + di = to_ab8500_charger_usb_device_info(charger); + else + return -ENXIO; + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_CHR_REG, + BUS_POWER_PATH_PRECHG_ENA, enable); + if (ret) { + dev_err(di->dev, "%s write failed\n", __func__); + return ret; + } + + return ret; +} + static int ab8500_charger_get_ext_psy_data(struct device *dev, void *data) { struct power_supply *psy; @@ -3201,6 +3262,23 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) if (ret < 0) dev_err(di->dev, "%s mask and set failed\n", __func__); + if (is_ab8540(di->parent)) { + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_MODE_REG, + BUS_VSYS_VOL_SELECT_MASK, BUS_VSYS_VOL_SELECT_3P6V); + if (ret) { + dev_err(di->dev, "failed to setup usb power path vsys voltage\n"); + goto out; + } + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_CHR_REG, + BUS_PP_PRECHG_CURRENT_MASK, 0); + if (ret) { + dev_err(di->dev, "failed to setup usb power path prechage current\n"); + goto out; + } + } + out: return ret; } @@ -3484,6 +3562,8 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->usb_chg.ops.check_enable = &ab8500_charger_usb_check_enable; di->usb_chg.ops.kick_wd = &ab8500_charger_watchdog_kick; di->usb_chg.ops.update_curr = &ab8500_charger_update_charger_current; + di->usb_chg.ops.pp_enable = &ab8540_charger_power_path_enable; + di->usb_chg.ops.pre_chg_enable = &ab8540_charger_usb_pre_chg_enable; di->usb_chg.max_out_volt = ab8500_charger_voltage_map[ ARRAY_SIZE(ab8500_charger_voltage_map) - 1]; di->usb_chg.max_out_curr = ab8500_charger_current_map[ @@ -3491,6 +3571,7 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->usb_chg.wdt_refresh = CHG_WD_INTERVAL; di->usb_chg.enabled = di->bm->usb_enabled; di->usb_chg.external = false; + di->usb_chg.power_path = di->bm->usb_power_path; di->usb_state.usb_current = -1; /* Create a work queue for the charger */ diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c index a876976678ab..a9b8efdafb8f 100644 --- a/drivers/power/abx500_chargalg.c +++ b/drivers/power/abx500_chargalg.c @@ -34,6 +34,9 @@ /* End-of-charge criteria counter */ #define EOC_COND_CNT 10 +/* Plus margin for the low battery threshold */ +#define BAT_PLUS_MARGIN (100) + #define to_abx500_chargalg_device_info(x) container_of((x), \ struct abx500_chargalg, chargalg_psy); @@ -83,6 +86,7 @@ enum abx500_chargalg_states { STATE_HW_TEMP_PROTECT_INIT, STATE_HW_TEMP_PROTECT, STATE_NORMAL_INIT, + STATE_USB_PP_PRE_CHARGE, STATE_NORMAL, STATE_WAIT_FOR_RECHARGE_INIT, STATE_WAIT_FOR_RECHARGE, @@ -114,6 +118,7 @@ static const char *states[] = { "HW_TEMP_PROTECT_INIT", "HW_TEMP_PROTECT", "NORMAL_INIT", + "USB_PP_PRE_CHARGE", "NORMAL", "WAIT_FOR_RECHARGE_INIT", "WAIT_FOR_RECHARGE", @@ -560,6 +565,37 @@ static int abx500_chargalg_usb_en(struct abx500_chargalg *di, int enable, return di->usb_chg->ops.enable(di->usb_chg, enable, vset, iset); } + /** + * ab8540_chargalg_usb_pp_en() - Enable/ disable USB power path + * @di: pointer to the abx500_chargalg structure + * @enable: power path enable/disable + * + * The USB power path will be enable/ disable + */ +static int ab8540_chargalg_usb_pp_en(struct abx500_chargalg *di, bool enable) +{ + if (!di->usb_chg || !di->usb_chg->ops.pp_enable) + return -ENXIO; + + return di->usb_chg->ops.pp_enable(di->usb_chg, enable); +} + +/** + * ab8540_chargalg_usb_pre_chg_en() - Enable/ disable USB pre-charge + * @di: pointer to the abx500_chargalg structure + * @enable: USB pre-charge enable/disable + * + * The USB USB pre-charge will be enable/ disable + */ +static int ab8540_chargalg_usb_pre_chg_en(struct abx500_chargalg *di, + bool enable) +{ + if (!di->usb_chg || !di->usb_chg->ops.pre_chg_enable) + return -ENXIO; + + return di->usb_chg->ops.pre_chg_enable(di->usb_chg, enable); +} + /** * abx500_chargalg_update_chg_curr() - Update charger current * @di: pointer to the abx500_chargalg structure @@ -765,6 +801,9 @@ static void abx500_chargalg_end_of_charge(struct abx500_chargalg *di) di->batt_data.avg_curr > 0) { if (++di->eoc_cnt >= EOC_COND_CNT) { di->eoc_cnt = 0; + if ((di->chg_info.charger_type & USB_CHG) && + (di->usb_chg->power_path)) + ab8540_chargalg_usb_pp_en(di, true); di->charge_status = POWER_SUPPLY_STATUS_FULL; di->maintenance_chg = true; dev_dbg(di->dev, "EOC reached!\n"); @@ -1465,6 +1504,22 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) break; case STATE_NORMAL_INIT: + if ((di->chg_info.charger_type & USB_CHG) && + di->usb_chg->power_path) { + if (di->batt_data.volt > + (di->bm->fg_params->lowbat_threshold + + BAT_PLUS_MARGIN)) { + ab8540_chargalg_usb_pre_chg_en(di, false); + ab8540_chargalg_usb_pp_en(di, false); + } else { + ab8540_chargalg_usb_pp_en(di, true); + ab8540_chargalg_usb_pre_chg_en(di, true); + abx500_chargalg_state_to(di, + STATE_USB_PP_PRE_CHARGE); + break; + } + } + abx500_chargalg_start_charging(di, di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); @@ -1479,6 +1534,13 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) break; + case STATE_USB_PP_PRE_CHARGE: + if (di->batt_data.volt > + (di->bm->fg_params->lowbat_threshold + + BAT_PLUS_MARGIN)) + abx500_chargalg_state_to(di, STATE_NORMAL_INIT); + break; + case STATE_NORMAL: handle_maxim_chg_curr(di); if (di->charge_status == POWER_SUPPLY_STATUS_FULL && diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 188aedc322c2..cd71d8eadf50 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -267,6 +267,7 @@ struct abx500_bm_data { bool autopower_cfg; bool ac_enabled; bool usb_enabled; + bool usb_power_path; bool no_maintenance; bool capacity_scaling; bool chg_unknown_bat; diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index a73e05a0441b..0ebf0c5d1f88 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -69,6 +69,8 @@ #define AB8500_USBCH_CTRL1_REG 0xC0 #define AB8500_USBCH_CTRL2_REG 0xC1 #define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2 +#define AB8540_USB_PP_MODE_REG 0xC5 +#define AB8540_USB_PP_CHR_REG 0xC6 /* * Gas Gauge register offsets @@ -259,6 +261,16 @@ enum bup_vch_sel { #define AB8505_RTC_PCUT_RESTART_REG 0x16 #define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17 +/* USB Power Path constants for ab8540 */ +#define BUS_VSYS_VOL_SELECT_MASK 0x06 +#define BUS_VSYS_VOL_SELECT_3P6V 0x00 +#define BUS_VSYS_VOL_SELECT_3P325V 0x02 +#define BUS_VSYS_VOL_SELECT_3P9V 0x04 +#define BUS_VSYS_VOL_SELECT_4P3V 0x06 +#define BUS_POWER_PATH_MODE_ENA 0x01 +#define BUS_PP_PRECHG_CURRENT_MASK 0x0E +#define BUS_POWER_PATH_PRECHG_ENA 0x01 + /** * struct res_to_temp - defines one point in a temp to res curve. To * be used in battery packs that combines the identification resistor with a diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index fa831f1e8cf8..234c99143bf7 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -20,6 +20,8 @@ struct ux500_charger_ops { int (*check_enable) (struct ux500_charger *, int, int); int (*kick_wd) (struct ux500_charger *); int (*update_curr) (struct ux500_charger *, int); + int (*pp_enable) (struct ux500_charger *, bool); + int (*pre_chg_enable) (struct ux500_charger *, bool); }; /** @@ -30,6 +32,7 @@ struct ux500_charger_ops { * @max_out_curr maximum output charger current in mA * @enabled indicates if this charger is used or not * @external external charger unit (pm2xxx) + * @power_path USB power path support */ struct ux500_charger { struct power_supply psy; @@ -39,6 +42,7 @@ struct ux500_charger { int wdt_refresh; bool enabled; bool external; + bool power_path; }; extern struct blocking_notifier_head charger_notifier_list; -- cgit v1.2.3 From 861a30da53e2c5b9823b5390c1757baaf8f6e356 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 29 Aug 2012 20:36:51 +0800 Subject: ab8500-bm: Add support for the new ab8540 platform Provide AB8540 platform specific information required to run the Battery Management subsystem on AB8540 based devices. For this to happen we see the introduction of separate platform specific data structures and a means in which to process them. Signed-off-by: Lee Jones --- drivers/power/ab8500_bmdata.c | 91 +++++++++++- drivers/power/ab8500_btemp.c | 42 +++++- drivers/power/ab8500_charger.c | 270 +++++++++++++++-------------------- include/linux/mfd/abx500.h | 10 +- include/linux/mfd/abx500/ab8500-bm.h | 5 +- 5 files changed, 248 insertions(+), 170 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_bmdata.c b/drivers/power/ab8500_bmdata.c index e8759763fbe0..85742a6d29ff 100644 --- a/drivers/power/ab8500_bmdata.c +++ b/drivers/power/ab8500_bmdata.c @@ -414,13 +414,20 @@ static const struct abx500_fg_parameters fg = { .pcut_debounce_time = 2, }; -static const struct abx500_maxim_parameters maxi_params = { +static const struct abx500_maxim_parameters ab8500_maxi_params = { .ena_maxi = true, .chg_curr = 910, .wait_cycles = 10, .charger_curr_step = 100, }; +static const struct abx500_maxim_parameters abx540_maxi_params = { + .ena_maxi = true, + .chg_curr = 3000, + .wait_cycles = 10, + .charger_curr_step = 200, +}; + static const struct abx500_bm_charger_parameters chg = { .usb_volt_max = 5500, .usb_curr_max = 1500, @@ -428,6 +435,46 @@ static const struct abx500_bm_charger_parameters chg = { .ac_curr_max = 1500, }; +/* + * This array maps the raw hex value to charger output current used by the + * AB8500 values + */ +static int ab8500_charge_output_curr_map[] = { + 100, 200, 300, 400, 500, 600, 700, 800, + 900, 1000, 1100, 1200, 1300, 1400, 1500, 1500, +}; + +static int ab8540_charge_output_curr_map[] = { + 0, 0, 0, 75, 100, 125, 150, 175, + 200, 225, 250, 275, 300, 325, 350, 375, + 400, 425, 450, 475, 500, 525, 550, 575, + 600, 625, 650, 675, 700, 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, 1500, 1600, 1700, 1900, 2000, +}; + +/* + * This array maps the raw hex value to charger input current used by the + * AB8500 values + */ +static int ab8500_charge_input_curr_map[] = { + 50, 98, 193, 290, 380, 450, 500, 600, + 700, 800, 900, 1000, 1100, 1300, 1400, 1500, +}; + +static int ab8540_charge_input_curr_map[] = { + 25, 50, 75, 100, 125, 150, 175, 200, + 225, 250, 275, 300, 325, 350, 375, 400, + 425, 450, 475, 500, 525, 550, 575, 600, + 625, 650, 675, 700, 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, 1500, 1500, 1500, 1500, +}; + struct abx500_bm_data ab8500_bm_data = { .temp_under = 3, .temp_low = 8, @@ -447,15 +494,53 @@ struct abx500_bm_data ab8500_bm_data = { .fg_res = 100, .cap_levels = &cap_levels, .bat_type = bat_type_thermistor, - .n_btypes = 3, + .n_btypes = ARRAY_SIZE(bat_type_thermistor), .batt_id = 0, .interval_charging = 5, .interval_not_charging = 120, .temp_hysteresis = 3, .gnd_lift_resistance = 34, - .maxi = &maxi_params, + .chg_output_curr = ab8500_charge_output_curr_map, + .n_chg_out_curr = ARRAY_SIZE(ab8500_charge_output_curr_map), + .maxi = &ab8500_maxi_params, .chg_params = &chg, .fg_params = &fg, + .chg_input_curr = ab8500_charge_input_curr_map, + .n_chg_in_curr = ARRAY_SIZE(ab8500_charge_input_curr_map), +}; + +struct abx500_bm_data ab8540_bm_data = { + .temp_under = 3, + .temp_low = 8, + .temp_high = 43, + .temp_over = 48, + .main_safety_tmr_h = 4, + .temp_interval_chg = 20, + .temp_interval_nochg = 120, + .usb_safety_tmr_h = 4, + .bkup_bat_v = BUP_VCH_SEL_2P6V, + .bkup_bat_i = BUP_ICH_SEL_150UA, + .no_maintenance = false, + .capacity_scaling = false, + .adc_therm = ABx500_ADC_THERM_BATCTRL, + .chg_unknown_bat = false, + .enable_overshoot = false, + .fg_res = 100, + .cap_levels = &cap_levels, + .bat_type = bat_type_thermistor, + .n_btypes = ARRAY_SIZE(bat_type_thermistor), + .batt_id = 0, + .interval_charging = 5, + .interval_not_charging = 120, + .temp_hysteresis = 3, + .gnd_lift_resistance = 0, + .maxi = &abx540_maxi_params, + .chg_params = &chg, + .fg_params = &fg, + .chg_output_curr = ab8540_charge_output_curr_map, + .n_chg_out_curr = ARRAY_SIZE(ab8540_charge_output_curr_map), + .chg_input_curr = ab8540_charge_input_curr_map, + .n_chg_in_curr = ARRAY_SIZE(ab8540_charge_input_curr_map), }; int ab8500_bm_of_probe(struct device *dev, diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c index 91ad3edf6197..7336dcf45f7e 100644 --- a/drivers/power/ab8500_btemp.c +++ b/drivers/power/ab8500_btemp.c @@ -42,6 +42,9 @@ #define BTEMP_BATCTRL_CURR_SRC_16UA 16 #define BTEMP_BATCTRL_CURR_SRC_18UA 18 +#define BTEMP_BATCTRL_CURR_SRC_60UA 60 +#define BTEMP_BATCTRL_CURR_SRC_120UA 120 + #define to_ab8500_btemp_device_info(x) container_of((x), \ struct ab8500_btemp, btemp_psy); @@ -216,7 +219,12 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, /* Only do this for batteries with internal NTC */ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) { - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_60UA) + curr = BAT_CTRL_60U_ENA; + else + curr = BAT_CTRL_120U_ENA; + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_16UA) curr = BAT_CTRL_16U_ENA; else @@ -257,7 +265,14 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, } else if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) { dev_dbg(di->dev, "Disable BATCTRL curr source\n"); - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + /* Write 0 to the curr bits */ + ret = abx500_mask_and_set_register_interruptible( + di->dev, + AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, + BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA, + ~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA)); + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { /* Write 0 to the curr bits */ ret = abx500_mask_and_set_register_interruptible( di->dev, @@ -314,7 +329,13 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, * if we got an error above */ disable_curr_source: - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + /* Write 0 to the curr bits */ + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, + BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA, + ~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA)); + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { /* Write 0 to the curr bits */ ret = abx500_mask_and_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, @@ -541,7 +562,9 @@ static int ab8500_btemp_id(struct ab8500_btemp *di) { int res; u8 i; - if (is_ab9540(di->parent) || is_ab8505(di->parent)) + if (is_ab8540(di->parent)) + di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA; + else if (is_ab9540(di->parent) || is_ab8505(di->parent)) di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA; else di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA; @@ -582,9 +605,14 @@ static int ab8500_btemp_id(struct ab8500_btemp *di) * detected type is Type 1, else we use the 7uA source */ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && - di->bm->batt_id == 1) { - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { - dev_dbg(di->dev, "Set BATCTRL current source to 16uA\n"); + di->bm->batt_id == 1) { + if (is_ab8540(di->parent)) { + dev_dbg(di->dev, + "Set BATCTRL current source to 60uA\n"); + di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA; + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + dev_dbg(di->dev, + "Set BATCTRL current source to 16uA\n"); di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA; } else { dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n"); diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index f249a65b02e1..6089ee7bc609 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -57,7 +57,9 @@ #define MAIN_CH_INPUT_CURR_SHIFT 4 #define VBUS_IN_CURR_LIM_SHIFT 4 +#define AB8540_VBUS_IN_CURR_LIM_SHIFT 2 #define AUTO_VBUS_IN_CURR_LIM_SHIFT 4 +#define AB8540_AUTO_VBUS_IN_CURR_MASK 0x3F #define VBUS_IN_CURR_LIM_RETRY_SET_TIME 30 /* seconds */ #define LED_INDICATOR_PWM_ENA 0x01 @@ -82,6 +84,7 @@ #define AB8500_USB_LINK_STATUS 0x78 #define AB8505_USB_LINK_STATUS 0xF8 #define AB8500_STD_HOST_SUSP 0x18 +#define USB_LINK_STATUS_SHIFT 3 /* Watchdog timeout constant */ #define WD_TIMER 0x30 /* 4min */ @@ -751,8 +754,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, "VBUS has collapsed\n"); ret = -ENXIO; break; - } - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + } else { dev_dbg(di->dev, "USB Type - Charging not allowed\n"); di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; @@ -807,30 +809,22 @@ static int ab8500_charger_read_usb_type(struct ab8500_charger *di) dev_err(di->dev, "%s ab8500 read failed\n", __func__); return ret; } - if (is_ab8500(di->parent)) { + if (is_ab8500(di->parent)) ret = abx500_get_register_interruptible(di->dev, AB8500_USB, - AB8500_USB_LINE_STAT_REG, &val); - } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { - ret = abx500_get_register_interruptible(di->dev, - AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val); - } else { - dev_err(di->dev, "%s unsupported analog baseband\n", __func__); - return -ENXIO; - } + AB8500_USB_LINE_STAT_REG, &val); + else + ret = abx500_get_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val); if (ret < 0) { dev_err(di->dev, "%s ab8500 read failed\n", __func__); return ret; } /* get the USB type */ - if (is_ab8500(di->parent)) { - val = (val & AB8500_USB_LINK_STATUS) >> 3; - } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { - val = (val & AB8505_USB_LINK_STATUS) >> 3; - } else { - dev_err(di->dev, "%s unsupported analog baseband\n", __func__); - return -ENXIO; - } + if (is_ab8500(di->parent)) + val = (val & AB8500_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT; + else + val = (val & AB8505_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT; ret = ab8500_charger_max_usb_curr(di, (enum ab8500_charger_link_status) val); @@ -866,16 +860,12 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di) return ret; } - if (is_ab8500(di->parent)) { + if (is_ab8500(di->parent)) ret = abx500_get_register_interruptible(di->dev, AB8500_USB, AB8500_USB_LINE_STAT_REG, &val); - } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + else ret = abx500_get_register_interruptible(di->dev, AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val); - } else { - dev_err(di->dev, "%s unsupported analog baseband\n", __func__); - return -ENXIO; - } if (ret < 0) { dev_err(di->dev, "%s ab8500 read failed\n", __func__); return ret; @@ -889,14 +879,12 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di) */ /* get the USB type */ - if (is_ab8500(di->parent)) { - val = (val & AB8500_USB_LINK_STATUS) >> 3; - } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { - val = (val & AB8505_USB_LINK_STATUS) >> 3; - } else { - dev_err(di->dev, "%s unsupported analog baseband\n", __func__); - return -ENXIO; - } + if (is_ab8500(di->parent)) + val = (val & AB8500_USB_LINK_STATUS) >> + USB_LINK_STATUS_SHIFT; + else + val = (val & AB8505_USB_LINK_STATUS) >> + USB_LINK_STATUS_SHIFT; if (val) break; } @@ -991,51 +979,6 @@ static int ab8500_charger_voltage_map[] = { 4600 , }; -/* - * This array maps the raw hex value to charger current used by the AB8500 - * Values taken from the UM0836 - */ -static int ab8500_charger_current_map[] = { - 100 , - 200 , - 300 , - 400 , - 500 , - 600 , - 700 , - 800 , - 900 , - 1000 , - 1100 , - 1200 , - 1300 , - 1400 , - 1500 , -}; - -/* - * This array maps the raw hex value to VBUS input current used by the AB8500 - * Values taken from the UM0836 - */ -static int ab8500_charger_vbus_in_curr_map[] = { - USB_CH_IP_CUR_LVL_0P05, - USB_CH_IP_CUR_LVL_0P09, - USB_CH_IP_CUR_LVL_0P19, - USB_CH_IP_CUR_LVL_0P29, - USB_CH_IP_CUR_LVL_0P38, - USB_CH_IP_CUR_LVL_0P45, - USB_CH_IP_CUR_LVL_0P5, - USB_CH_IP_CUR_LVL_0P6, - USB_CH_IP_CUR_LVL_0P7, - USB_CH_IP_CUR_LVL_0P8, - USB_CH_IP_CUR_LVL_0P9, - USB_CH_IP_CUR_LVL_1P0, - USB_CH_IP_CUR_LVL_1P1, - USB_CH_IP_CUR_LVL_1P3, - USB_CH_IP_CUR_LVL_1P4, - USB_CH_IP_CUR_LVL_1P5, -}; - static int ab8500_voltage_to_regval(int voltage) { int i; @@ -1057,41 +1000,41 @@ static int ab8500_voltage_to_regval(int voltage) return -1; } -static int ab8500_current_to_regval(int curr) +static int ab8500_current_to_regval(struct ab8500_charger *di, int curr) { int i; - if (curr < ab8500_charger_current_map[0]) + if (curr < di->bm->chg_output_curr[0]) return 0; - for (i = 0; i < ARRAY_SIZE(ab8500_charger_current_map); i++) { - if (curr < ab8500_charger_current_map[i]) + for (i = 0; i < di->bm->n_chg_out_curr; i++) { + if (curr < di->bm->chg_output_curr[i]) return i - 1; } /* If not last element, return error */ - i = ARRAY_SIZE(ab8500_charger_current_map) - 1; - if (curr == ab8500_charger_current_map[i]) + i = di->bm->n_chg_out_curr - 1; + if (curr == di->bm->chg_output_curr[i]) return i; else return -1; } -static int ab8500_vbus_in_curr_to_regval(int curr) +static int ab8500_vbus_in_curr_to_regval(struct ab8500_charger *di, int curr) { int i; - if (curr < ab8500_charger_vbus_in_curr_map[0]) + if (curr < di->bm->chg_input_curr[0]) return 0; - for (i = 0; i < ARRAY_SIZE(ab8500_charger_vbus_in_curr_map); i++) { - if (curr < ab8500_charger_vbus_in_curr_map[i]) + for (i = 0; i < di->bm->n_chg_in_curr; i++) { + if (curr < di->bm->chg_input_curr[i]) return i - 1; } /* If not last element, return error */ - i = ARRAY_SIZE(ab8500_charger_vbus_in_curr_map) - 1; - if (curr == ab8500_charger_vbus_in_curr_map[i]) + i = di->bm->n_chg_in_curr - 1; + if (curr == di->bm->chg_input_curr[i]) return i; else return -1; @@ -1169,7 +1112,7 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, int ich, int reg) { int ret = 0; - int auto_curr_index, curr_index, prev_curr_index, shift_value, i; + int curr_index, prev_curr_index, shift_value, i; u8 reg_value; u32 step_udelay; bool no_stepping = false; @@ -1187,39 +1130,27 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, case AB8500_MCH_IPT_CURLVL_REG: shift_value = MAIN_CH_INPUT_CURR_SHIFT; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_current_to_regval(ich); + curr_index = ab8500_current_to_regval(di, ich); step_udelay = STEP_UDELAY; if (!di->ac.charger_connected) no_stepping = true; break; case AB8500_USBCH_IPT_CRNTLVL_REG: - shift_value = VBUS_IN_CURR_LIM_SHIFT; + if (is_ab8540(di->parent)) + shift_value = AB8540_VBUS_IN_CURR_LIM_SHIFT; + else + shift_value = VBUS_IN_CURR_LIM_SHIFT; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_vbus_in_curr_to_regval(ich); + curr_index = ab8500_vbus_in_curr_to_regval(di, ich); step_udelay = STEP_UDELAY * 100; - ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CH_USBCH_STAT2_REG, ®_value); - if (ret < 0) { - dev_err(di->dev, "%s read failed\n", __func__); - goto exit_set_current; - } - auto_curr_index = - reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT; - - dev_dbg(di->dev, "%s Auto VBUS curr is %d mA\n", - __func__, - ab8500_charger_vbus_in_curr_map[auto_curr_index]); - - prev_curr_index = min(prev_curr_index, auto_curr_index); - if (!di->usb.charger_connected) no_stepping = true; break; case AB8500_CH_OPT_CRNTLVL_REG: shift_value = 0; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_current_to_regval(ich); + curr_index = ab8500_current_to_regval(di, ich); step_udelay = STEP_UDELAY; if (curr_index && (curr_index - prev_curr_index) > 1) step_udelay *= 100; @@ -1459,8 +1390,8 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger, /* Check if the requested voltage or current is valid */ volt_index = ab8500_voltage_to_regval(vset); - curr_index = ab8500_current_to_regval(iset); - input_curr_index = ab8500_current_to_regval( + curr_index = ab8500_current_to_regval(di, iset); + input_curr_index = ab8500_current_to_regval(di, di->bm->chg_params->ac_curr_max); if (volt_index < 0 || curr_index < 0 || input_curr_index < 0) { dev_err(di->dev, @@ -1631,7 +1562,7 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, /* Check if the requested voltage or current is valid */ volt_index = ab8500_voltage_to_regval(vset); - curr_index = ab8500_current_to_regval(ich_out); + curr_index = ab8500_current_to_regval(di, ich_out); if (volt_index < 0 || curr_index < 0) { dev_err(di->dev, "Charger voltage or current too high, " @@ -2396,18 +2327,21 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) else dev_dbg(di->dev, "Error reading USB link status\n"); - if (is_ab9540(di->parent) || is_ab8505(di->parent)) - link_status = AB8505_USB_LINK_STATUS; - else + if (is_ab8500(di->parent)) link_status = AB8500_USB_LINK_STATUS; + else + link_status = AB8505_USB_LINK_STATUS; if (detected_chargers & USB_PW_CONN) { - if (((val & link_status) >> 3) == USB_STAT_NOT_VALID_LINK && + if (((val & link_status) >> USB_LINK_STATUS_SHIFT) == + USB_STAT_NOT_VALID_LINK && di->invalid_charger_detect_state == 0) { - dev_dbg(di->dev, "Invalid charger detected, state= 0\n"); + dev_dbg(di->dev, + "Invalid charger detected, state= 0\n"); /*Enable charger*/ abx500_mask_and_set_register_interruptible(di->dev, - AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, 0x01, 0x01); + AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, + USB_CH_ENA, USB_CH_ENA); /*Enable charger detection*/ abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x01); @@ -2417,15 +2351,17 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) } if (di->invalid_charger_detect_state == 1) { - dev_dbg(di->dev, "Invalid charger detected, state= 1\n"); + dev_dbg(di->dev, + "Invalid charger detected, state= 1\n"); /*Stop charger detection*/ abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x00); /*Check link status*/ - ret = abx500_get_register_interruptible(di->dev, AB8500_USB, + ret = abx500_get_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_STAT_REG, &val); dev_dbg(di->dev, "USB link status= 0x%02x\n", - (val & link_status) >> 3); + (val & link_status) >> USB_LINK_STATUS_SHIFT); di->invalid_charger_detect_state = 2; } } else { @@ -2741,7 +2677,7 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work) { struct ab8500_charger *di = container_of(work, struct ab8500_charger, vbus_drop_end_work.work); - int ret; + int ret, curr; u8 reg_value; di->flags.vbus_drop_end = false; @@ -2749,32 +2685,41 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work) /* Reset the drop counter */ abx500_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_CHARGER_CTRL, 0x01); - ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CH_USBCH_STAT2_REG, - ®_value); + + if (is_ab8540(di->parent)) + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8540_CH_USBCH_STAT3_REG, ®_value); + else + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_CH_USBCH_STAT2_REG, ®_value); if (ret < 0) { - dev_err(di->dev, "%s ab8500 read failed\n", __func__); - } else { - int curr = ab8500_charger_vbus_in_curr_map[ + dev_err(di->dev, "%s read failed\n", __func__); + return; + } + + if (is_ab8540(di->parent)) + curr = di->bm->chg_input_curr[ + reg_value & AB8540_AUTO_VBUS_IN_CURR_MASK]; + else + curr = di->bm->chg_input_curr[ reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT]; - if (di->max_usb_in_curr.calculated_max != curr) { - /* USB source is collapsing */ - di->max_usb_in_curr.calculated_max = curr; - dev_dbg(di->dev, - "VBUS input current limiting to %d mA\n", - di->max_usb_in_curr.calculated_max); - } else { - /* - * USB source can not give more than this amount. - * Taking more will collapse the source. - */ - di->max_usb_in_curr.set_max = - di->max_usb_in_curr.calculated_max; - dev_dbg(di->dev, - "VBUS input current limited to %d mA\n", - di->max_usb_in_curr.set_max); - return; - } + + if (di->max_usb_in_curr.calculated_max != curr) { + /* USB source is collapsing */ + di->max_usb_in_curr.calculated_max = curr; + dev_dbg(di->dev, + "VBUS input current limiting to %d mA\n", + di->max_usb_in_curr.calculated_max); + } else { + /* + * USB source can not give more than this amount. + * Taking more will collapse the source. + */ + di->max_usb_in_curr.set_max = + di->max_usb_in_curr.calculated_max; + dev_dbg(di->dev, + "VBUS input current limited to %d mA\n", + di->max_usb_in_curr.set_max); } if (di->usb.charger_connected) @@ -3134,9 +3079,14 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) goto out; } - ret = abx500_set_register_interruptible(di->dev, - AB8500_CHARGER, - AB8500_CH_OPT_CRNTLVL_MAX_REG, CH_OP_CUR_LVL_1P6); + if (is_ab8540(di->parent)) + ret = abx500_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG, + CH_OP_CUR_LVL_2P); + else + ret = abx500_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG, + CH_OP_CUR_LVL_1P6); if (ret) { dev_err(di->dev, "failed to set CH_OPT_CRNTLVL_MAX_REG\n"); @@ -3144,7 +3094,8 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) } } - if (is_ab9540_2p0(di->parent) || is_ab8505_2p0(di->parent)) + if (is_ab9540_2p0(di->parent) || is_ab9540_3p0(di->parent) + || is_ab8505_2p0(di->parent) || is_ab8540(di->parent)) ret = abx500_mask_and_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_USBCH_CTRL2_REG, @@ -3250,7 +3201,8 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) AB8500_RTC_CTRL1_REG, bup_vch_range | vbup33_vrtcn); if (ret) { - dev_err(di->dev, "failed to setup backup battery charging\n"); + dev_err(di->dev, + "failed to setup backup battery charging\n"); goto out; } } @@ -3267,14 +3219,16 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) AB8500_CHARGER, AB8540_USB_PP_MODE_REG, BUS_VSYS_VOL_SELECT_MASK, BUS_VSYS_VOL_SELECT_3P6V); if (ret) { - dev_err(di->dev, "failed to setup usb power path vsys voltage\n"); + dev_err(di->dev, + "failed to setup usb power path vsys voltage\n"); goto out; } ret = abx500_mask_and_set_register_interruptible(di->dev, AB8500_CHARGER, AB8540_USB_PP_CHR_REG, BUS_PP_PRECHG_CURRENT_MASK, 0); if (ret) { - dev_err(di->dev, "failed to setup usb power path prechage current\n"); + dev_err(di->dev, + "failed to setup usb power path prechage current\n"); goto out; } } @@ -3537,8 +3491,8 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->ac_chg.ops.update_curr = &ab8500_charger_update_charger_current; di->ac_chg.max_out_volt = ab8500_charger_voltage_map[ ARRAY_SIZE(ab8500_charger_voltage_map) - 1]; - di->ac_chg.max_out_curr = ab8500_charger_current_map[ - ARRAY_SIZE(ab8500_charger_current_map) - 1]; + di->ac_chg.max_out_curr = + di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1]; di->ac_chg.wdt_refresh = CHG_WD_INTERVAL; di->ac_chg.enabled = di->bm->ac_enabled; di->ac_chg.external = false; @@ -3566,8 +3520,8 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->usb_chg.ops.pre_chg_enable = &ab8540_charger_usb_pre_chg_enable; di->usb_chg.max_out_volt = ab8500_charger_voltage_map[ ARRAY_SIZE(ab8500_charger_voltage_map) - 1]; - di->usb_chg.max_out_curr = ab8500_charger_current_map[ - ARRAY_SIZE(ab8500_charger_current_map) - 1]; + di->usb_chg.max_out_curr = + di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1]; di->usb_chg.wdt_refresh = CHG_WD_INTERVAL; di->usb_chg.enabled = di->bm->usb_enabled; di->usb_chg.external = false; diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index cd71d8eadf50..33b0253569a3 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -246,7 +246,11 @@ struct abx500_bm_charger_parameters { * @interval_not_charging charge alg cycle period time when not charging (sec) * @temp_hysteresis temperature hysteresis * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm) - * @maxi: maximization parameters + * @n_chg_out_curr number of elements in array chg_output_curr + * @n_chg_in_curr number of elements in array chg_input_curr + * @chg_output_curr charger output current level map + * @chg_input_curr charger input current level map + * @maxi maximization parameters * @cap_levels capacity in percent for the different capacity levels * @bat_type table of supported battery types * @chg_params charger parameters @@ -281,6 +285,10 @@ struct abx500_bm_data { int interval_not_charging; int temp_hysteresis; int gnd_lift_resistance; + int n_chg_out_curr; + int n_chg_in_curr; + int *chg_output_curr; + int *chg_input_curr; const struct abx500_maxim_parameters *maxi; const struct abx500_bm_capacity_levels *cap_levels; struct abx500_battery_type *bat_type; diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 0ebf0c5d1f88..ee1c1626c886 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -33,7 +33,7 @@ #define AB8500_CH_STATUS2_REG 0x01 #define AB8500_CH_USBCH_STAT1_REG 0x02 #define AB8500_CH_USBCH_STAT2_REG 0x03 -#define AB8500_CH_FSM_STAT_REG 0x04 +#define AB8540_CH_USBCH_STAT3_REG 0x04 #define AB8500_CH_STAT_REG 0x05 /* @@ -157,6 +157,7 @@ #define CH_OP_CUR_LVL_1P4 0x0D #define CH_OP_CUR_LVL_1P5 0x0E #define CH_OP_CUR_LVL_1P6 0x0F +#define CH_OP_CUR_LVL_2P 0x3F /* BTEMP High thermal limits */ #define BTEMP_HIGH_TH_57_0 0x00 @@ -246,6 +247,8 @@ enum bup_vch_sel { #define BAT_CTRL_20U_ENA 0x02 #define BAT_CTRL_18U_ENA 0x01 #define BAT_CTRL_16U_ENA 0x02 +#define BAT_CTRL_60U_ENA 0x01 +#define BAT_CTRL_120U_ENA 0x02 #define BAT_CTRL_CMP_ENA 0x04 #define FORCE_BAT_CTRL_CMP_HIGH 0x08 #define BAT_CTRL_PULL_UP_ENA 0x10 -- cgit v1.2.3 From b3ea5f451e4e435b650e34142f8552002dc21297 Mon Sep 17 00:00:00 2001 From: Marcus Cooper Date: Wed, 29 Aug 2012 17:56:19 +0200 Subject: ab8500-charger: Add UsbLineCtrl2 reference When the state of USB Charge detection is changed then the calls use a define for another register in other bank. This change creates a new define for the correct register and removes the magic numbers that are present. Signed-off-by: Marcus Cooper Signed-off-by: Lee Jones Reviewed-by: Hakan BERG Reviewed-by: Jonas ABERG --- drivers/power/ab8500_charger.c | 11 +++++++---- include/linux/mfd/abx500/ab8500-bm.h | 1 + 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index bf8b479914cd..64accb235d2c 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -54,6 +54,7 @@ #define VBUS_DET_DBNC1 0x01 #define OTP_ENABLE_WD 0x01 #define DROP_COUNT_RESET 0x01 +#define USB_CH_DET 0x01 #define MAIN_CH_INPUT_CURR_SHIFT 4 #define VBUS_IN_CURR_LIM_SHIFT 4 @@ -2348,8 +2349,9 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, USB_CH_ENA, USB_CH_ENA); /*Enable charger detection*/ - abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, - AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x01); + abx500_mask_and_set_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_CTRL2_REG, + USB_CH_DET, USB_CH_DET); di->invalid_charger_detect_state = 1; /*exit and wait for new link status interrupt.*/ return; @@ -2359,8 +2361,9 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) dev_dbg(di->dev, "Invalid charger detected, state= 1\n"); /*Stop charger detection*/ - abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, - AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x00); + abx500_mask_and_set_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_CTRL2_REG, + USB_CH_DET, 0x00); /*Check link status*/ if (is_ab8500(di->parent)) ret = abx500_get_register_interruptible(di->dev, diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index ee1c1626c886..f5214dc651f9 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -23,6 +23,7 @@ * Bank : 0x5 */ #define AB8500_USB_LINE_STAT_REG 0x80 +#define AB8500_USB_LINE_CTRL2_REG 0x82 #define AB8500_USB_LINK1_STAT_REG 0x94 /* -- cgit v1.2.3 From 0ec83bd2460ed6aed0e7f29f9e0633b054621c02 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Wed, 13 Mar 2013 17:38:57 +0900 Subject: extcon: max77693: Initialize register of MUIC device to bring up it without platform data This patch set default value of MUIC register to bring up MUIC device. If user don't set some initial value for MUIC device through platform data, extcon-max77693 driver use 'default_init_data' to bring up base operation of MAX77693 MUIC device. Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham --- drivers/extcon/extcon-max77693.c | 93 ++++++++++++++++++++++++++---------- include/linux/mfd/max77693-private.h | 23 +++++++++ 2 files changed, 91 insertions(+), 25 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index fea10624f3e5..8f3c947b0029 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -32,6 +32,38 @@ #define DEV_NAME "max77693-muic" #define DELAY_MS_DEFAULT 20000 /* unit: millisecond */ +/* + * Default value of MAX77693 register to bring up MUIC device. + * If user don't set some initial value for MUIC device through platform data, + * extcon-max77693 driver use 'default_init_data' to bring up base operation + * of MAX77693 MUIC device. + */ +struct max77693_reg_data default_init_data[] = { + { + /* STATUS2 - [3]ChgDetRun */ + .addr = MAX77693_MUIC_REG_STATUS2, + .data = STATUS2_CHGDETRUN_MASK, + }, { + /* INTMASK1 - Unmask [3]ADC1KM,[0]ADCM */ + .addr = MAX77693_MUIC_REG_INTMASK1, + .data = INTMASK1_ADC1K_MASK + | INTMASK1_ADC_MASK, + }, { + /* INTMASK2 - Unmask [0]ChgTypM */ + .addr = MAX77693_MUIC_REG_INTMASK2, + .data = INTMASK2_CHGTYP_MASK, + }, { + /* INTMASK3 - Mask all of interrupts */ + .addr = MAX77693_MUIC_REG_INTMASK3, + .data = 0x0, + }, { + /* CDETCTRL2 */ + .addr = MAX77693_MUIC_REG_CDETCTRL2, + .data = CDETCTRL2_VIDRMEN_MASK + | CDETCTRL2_DXOVPEN_MASK, + }, +}; + enum max77693_muic_adc_debounce_time { ADC_DEBOUNCE_TIME_5MS = 0, ADC_DEBOUNCE_TIME_10MS, @@ -1046,6 +1078,8 @@ static int max77693_muic_probe(struct platform_device *pdev) struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent); struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev); struct max77693_muic_info *info; + struct max77693_reg_data *init_data; + int num_init_data; int delay_jiffies; int ret; int i; @@ -1144,35 +1178,44 @@ static int max77693_muic_probe(struct platform_device *pdev) goto err_irq; } + + /* Initialize MUIC register by using platform data or default data */ if (pdata->muic_data) { - struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; + init_data = pdata->muic_data->init_data; + num_init_data = pdata->muic_data->num_init_data; + } else { + init_data = default_init_data; + num_init_data = ARRAY_SIZE(default_init_data); + } + + for (i = 0 ; i < num_init_data ; i++) { + enum max77693_irq_source irq_src + = MAX77693_IRQ_GROUP_NR; - /* Initialize MUIC register by using platform data */ - for (i = 0 ; i < muic_pdata->num_init_data ; i++) { - enum max77693_irq_source irq_src - = MAX77693_IRQ_GROUP_NR; - - max77693_write_reg(info->max77693->regmap_muic, - muic_pdata->init_data[i].addr, - muic_pdata->init_data[i].data); - - switch (muic_pdata->init_data[i].addr) { - case MAX77693_MUIC_REG_INTMASK1: - irq_src = MUIC_INT1; - break; - case MAX77693_MUIC_REG_INTMASK2: - irq_src = MUIC_INT2; - break; - case MAX77693_MUIC_REG_INTMASK3: - irq_src = MUIC_INT3; - break; - } - - if (irq_src < MAX77693_IRQ_GROUP_NR) - info->max77693->irq_masks_cur[irq_src] - = muic_pdata->init_data[i].data; + max77693_write_reg(info->max77693->regmap_muic, + init_data[i].addr, + init_data[i].data); + + switch (init_data[i].addr) { + case MAX77693_MUIC_REG_INTMASK1: + irq_src = MUIC_INT1; + break; + case MAX77693_MUIC_REG_INTMASK2: + irq_src = MUIC_INT2; + break; + case MAX77693_MUIC_REG_INTMASK3: + irq_src = MUIC_INT3; + break; } + if (irq_src < MAX77693_IRQ_GROUP_NR) + info->max77693->irq_masks_cur[irq_src] + = init_data[i].data; + } + + if (pdata->muic_data) { + struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; + /* * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB * h/w path of COMP2/COMN1 on CONTROL1 register. diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index 5b18ecde69b5..1aa4f13cdfa6 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -106,6 +106,29 @@ enum max77693_muic_reg { MAX77693_MUIC_REG_END, }; +/* MAX77693 INTMASK1~2 Register */ +#define INTMASK1_ADC1K_SHIFT 3 +#define INTMASK1_ADCERR_SHIFT 2 +#define INTMASK1_ADCLOW_SHIFT 1 +#define INTMASK1_ADC_SHIFT 0 +#define INTMASK1_ADC1K_MASK (1 << INTMASK1_ADC1K_SHIFT) +#define INTMASK1_ADCERR_MASK (1 << INTMASK1_ADCERR_SHIFT) +#define INTMASK1_ADCLOW_MASK (1 << INTMASK1_ADCLOW_SHIFT) +#define INTMASK1_ADC_MASK (1 << INTMASK1_ADC_SHIFT) + +#define INTMASK2_VIDRM_SHIFT 5 +#define INTMASK2_VBVOLT_SHIFT 4 +#define INTMASK2_DXOVP_SHIFT 3 +#define INTMASK2_DCDTMR_SHIFT 2 +#define INTMASK2_CHGDETRUN_SHIFT 1 +#define INTMASK2_CHGTYP_SHIFT 0 +#define INTMASK2_VIDRM_MASK (1 << INTMASK2_VIDRM_SHIFT) +#define INTMASK2_VBVOLT_MASK (1 << INTMASK2_VBVOLT_SHIFT) +#define INTMASK2_DXOVP_MASK (1 << INTMASK2_DXOVP_SHIFT) +#define INTMASK2_DCDTMR_MASK (1 << INTMASK2_DCDTMR_SHIFT) +#define INTMASK2_CHGDETRUN_MASK (1 << INTMASK2_CHGDETRUN_SHIFT) +#define INTMASK2_CHGTYP_MASK (1 << INTMASK2_CHGTYP_SHIFT) + /* MAX77693 MUIC - STATUS1~3 Register */ #define STATUS1_ADC_SHIFT (0) #define STATUS1_ADCLOW_SHIFT (5) -- cgit v1.2.3 From 6f8da5df8c451103e0043f73a00c90676da6be9e Mon Sep 17 00:00:00 2001 From: Rhyland Klein Date: Tue, 12 Mar 2013 18:08:09 -0400 Subject: power_supply: Add support for tps65090-charger This patch adds support for the tps65090 charger driver. This driver is responsible for controlling the charger aspect of the tps65090 mfd. Currently, this mainly consists of turning on and off the charger, but some features of the charger can be supported through this driver including: - Enable Auto Recharge based on Battery voltage - Fast Charge Safety Timer - Maximum battery discharge current - Maximum battery adapter current - Enable External Charge - Disable charging termination based on low charger current (supported) Once the driver is accepted, later patches can add support for the features above which are not yet supported. Based on work by: Syed Rafiuddin Laxman Dewangan Signed-off-by: Rhyland Klein Signed-off-by: Anton Vorontsov --- drivers/power/Kconfig | 7 + drivers/power/Makefile | 1 + drivers/power/tps65090-charger.c | 315 +++++++++++++++++++++++++++++++++++++++ include/linux/mfd/tps65090.h | 5 + 4 files changed, 328 insertions(+) create mode 100644 drivers/power/tps65090-charger.c (limited to 'include/linux/mfd') diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 07e1a8f8d03e..339f802b91c1 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -340,6 +340,13 @@ config CHARGER_SMB347 Say Y to include support for Summit Microelectronics SMB347 Battery Charger. +config CHARGER_TPS65090 + tristate "TPS65090 battery charger driver" + depends on MFD_TPS65090 + help + Say Y here to enable support for battery charging with TPS65090 + PMIC chips. + config AB8500_BM bool "AB8500 Battery Management Driver" depends on AB8500_CORE && AB8500_GPADC diff --git a/drivers/power/Makefile b/drivers/power/Makefile index eb520ea74970..653bf6ceff30 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -52,4 +52,5 @@ obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_POWER_AVS) += avs/ obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o +obj-$(CONFIG_CHARGER_TPS65090) += tps65090-charger.o obj-$(CONFIG_POWER_RESET) += reset/ diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c new file mode 100644 index 000000000000..0c66c6656b13 --- /dev/null +++ b/drivers/power/tps65090-charger.c @@ -0,0 +1,315 @@ +/* + * Battery charger driver for TI's tps65090 + * + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + + * This program is distributed in the hope 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, see . + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TPS65090_REG_INTR_STS 0x00 +#define TPS65090_REG_CG_CTRL0 0x04 +#define TPS65090_REG_CG_CTRL1 0x05 +#define TPS65090_REG_CG_CTRL2 0x06 +#define TPS65090_REG_CG_CTRL3 0x07 +#define TPS65090_REG_CG_CTRL4 0x08 +#define TPS65090_REG_CG_CTRL5 0x09 +#define TPS65090_REG_CG_STATUS1 0x0a +#define TPS65090_REG_CG_STATUS2 0x0b + +#define TPS65090_CHARGER_ENABLE BIT(0) +#define TPS65090_VACG BIT(1) +#define TPS65090_NOITERM BIT(5) + +struct tps65090_charger { + struct device *dev; + int ac_online; + int prev_ac_online; + int irq; + struct power_supply ac; + struct tps65090_platform_data *pdata; +}; + +static enum power_supply_property tps65090_ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static int tps65090_low_chrg_current(struct tps65090_charger *charger) +{ + int ret; + + ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL5, + TPS65090_NOITERM); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL5); + return ret; + } + return 0; +} + +static int tps65090_enable_charging(struct tps65090_charger *charger, + uint8_t enable) +{ + int ret; + uint8_t ctrl0 = 0; + + ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_CTRL0, + &ctrl0); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL0); + return ret; + } + + ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL0, + (ctrl0 | TPS65090_CHARGER_ENABLE)); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL0); + return ret; + } + return 0; +} + +static int tps65090_config_charger(struct tps65090_charger *charger) +{ + int ret; + + if (charger->pdata->enable_low_current_chrg) { + ret = tps65090_low_chrg_current(charger); + if (ret < 0) { + dev_err(charger->dev, + "error configuring low charge current\n"); + return ret; + } + } + + return 0; +} + +static int tps65090_ac_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct tps65090_charger *charger = container_of(psy, + struct tps65090_charger, ac); + + if (psp == POWER_SUPPLY_PROP_ONLINE) { + val->intval = charger->ac_online; + charger->prev_ac_online = charger->ac_online; + return 0; + } + return -EINVAL; +} + +static irqreturn_t tps65090_charger_isr(int irq, void *dev_id) +{ + struct tps65090_charger *charger = dev_id; + int ret; + uint8_t status1 = 0; + uint8_t intrsts = 0; + + ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_STATUS1, + &status1); + if (ret < 0) { + dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n", + __func__, TPS65090_REG_CG_STATUS1); + return IRQ_HANDLED; + } + msleep(75); + ret = tps65090_read(charger->dev->parent, TPS65090_REG_INTR_STS, + &intrsts); + if (ret < 0) { + dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n", + __func__, TPS65090_REG_INTR_STS); + return IRQ_HANDLED; + } + + if (intrsts & TPS65090_VACG) { + ret = tps65090_enable_charging(charger, 1); + if (ret < 0) + return IRQ_HANDLED; + charger->ac_online = 1; + } else { + charger->ac_online = 0; + } + + if (charger->prev_ac_online != charger->ac_online) + power_supply_changed(&charger->ac); + + return IRQ_HANDLED; +} + +#if defined(CONFIG_OF) + +#include + +static struct tps65090_platform_data * + tps65090_parse_dt_charger_data(struct platform_device *pdev) +{ + struct tps65090_platform_data *pdata; + struct device_node *np = pdev->dev.parent->of_node; + unsigned int prop; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, "Memory alloc for tps65090_pdata failed\n"); + return NULL; + } + + prop = of_property_read_bool(np, "ti,enable-low-current-chrg"); + pdata->enable_low_current_chrg = prop; + + pdata->irq_base = -1; + + return pdata; + +} +#else +static struct tps65090_platform_data * + tps65090_parse_dt_charger_data(struct platform_device *pdev) +{ + return NULL; +} +#endif + +static int tps65090_charger_probe(struct platform_device *pdev) +{ + struct tps65090 *tps65090_mfd = dev_get_drvdata(pdev->dev.parent); + struct tps65090_charger *cdata; + struct tps65090_platform_data *pdata; + uint8_t status1 = 0; + int ret; + int irq; + + pdata = dev_get_platdata(pdev->dev.parent); + + if (!pdata && tps65090_mfd->dev->of_node) + pdata = tps65090_parse_dt_charger_data(pdev); + + if (!pdata) { + dev_err(&pdev->dev, "%s():no platform data available\n", + __func__); + return -ENODEV; + } + + cdata = devm_kzalloc(&pdev->dev, sizeof(*cdata), GFP_KERNEL); + if (!cdata) { + dev_err(&pdev->dev, "failed to allocate memory status\n"); + return -ENOMEM; + } + + dev_set_drvdata(&pdev->dev, cdata); + + cdata->dev = &pdev->dev; + cdata->pdata = pdata; + + cdata->ac.name = "tps65090-ac"; + cdata->ac.type = POWER_SUPPLY_TYPE_MAINS; + cdata->ac.get_property = tps65090_ac_get_property; + cdata->ac.properties = tps65090_ac_props; + cdata->ac.num_properties = ARRAY_SIZE(tps65090_ac_props); + cdata->ac.supplied_to = pdata->supplied_to; + cdata->ac.num_supplicants = pdata->num_supplicants; + + ret = power_supply_register(&pdev->dev, &cdata->ac); + if (ret) { + dev_err(&pdev->dev, "failed: power supply register\n"); + return ret; + } + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_warn(&pdev->dev, "Unable to get charger irq = %d\n", irq); + ret = irq; + goto fail_unregister_supply; + } + + cdata->irq = irq; + + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + tps65090_charger_isr, 0, "tps65090-charger", cdata); + if (ret) { + dev_err(cdata->dev, "Unable to register irq %d err %d\n", irq, + ret); + goto fail_free_irq; + } + + ret = tps65090_config_charger(cdata); + if (ret < 0) { + dev_err(&pdev->dev, "charger config failed, err %d\n", ret); + goto fail_free_irq; + } + + /* Check for charger presence */ + ret = tps65090_read(cdata->dev->parent, TPS65090_REG_CG_STATUS1, + &status1); + if (ret < 0) { + dev_err(cdata->dev, "%s(): Error in reading reg 0x%x", __func__, + TPS65090_REG_CG_STATUS1); + goto fail_free_irq; + } + + if (status1 != 0) { + ret = tps65090_enable_charging(cdata, 1); + if (ret < 0) { + dev_err(cdata->dev, "error enabling charger\n"); + goto fail_free_irq; + } + cdata->ac_online = 1; + power_supply_changed(&cdata->ac); + } + + return 0; + +fail_free_irq: + devm_free_irq(cdata->dev, irq, cdata); +fail_unregister_supply: + power_supply_unregister(&cdata->ac); + + return ret; +} + +static int tps65090_charger_remove(struct platform_device *pdev) +{ + struct tps65090_charger *cdata = dev_get_drvdata(&pdev->dev); + + devm_free_irq(cdata->dev, cdata->irq, cdata); + power_supply_unregister(&cdata->ac); + + return 0; +} + +static struct platform_driver tps65090_charger_driver = { + .driver = { + .name = "tps65090-charger", + .owner = THIS_MODULE, + }, + .probe = tps65090_charger_probe, + .remove = tps65090_charger_remove, +}; +module_platform_driver(tps65090_charger_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Syed Rafiuddin "); +MODULE_DESCRIPTION("tps65090 battery charger driver"); diff --git a/include/linux/mfd/tps65090.h b/include/linux/mfd/tps65090.h index 6694cf43e8b8..998628a2b08b 100644 --- a/include/linux/mfd/tps65090.h +++ b/include/linux/mfd/tps65090.h @@ -86,6 +86,11 @@ struct tps65090_regulator_plat_data { struct tps65090_platform_data { int irq_base; + + char **supplied_to; + size_t num_supplicants; + int enable_low_current_chrg; + struct tps65090_regulator_plat_data *reg_pdata[TPS65090_REGULATOR_MAX]; }; -- cgit v1.2.3 From 3cf956eebe54cdb7cf1701642085507f0354e56a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 20 Mar 2013 10:12:10 +0100 Subject: ASoC: wm8994: Support constraining the maximum number of channels clocked Some systems use the audio CODEC to clock a DAI with multiple data lines in parallel, meaning that bit clocks are only required for a smaller number of channels than data is sent for. In some cases providing the extra bit clocks can take the other devices on the audio bus out of spec. Support such systems by allowing a maximum number of channels to be specified. Signed-off-by: Mark Brown --- include/linux/mfd/wm8994/pdata.h | 8 ++++++++ sound/soc/codecs/wm8994.c | 13 +++++++++++-- 2 files changed, 19 insertions(+), 2 deletions(-) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h index 8e21a094836d..68e776594889 100644 --- a/include/linux/mfd/wm8994/pdata.h +++ b/include/linux/mfd/wm8994/pdata.h @@ -17,6 +17,7 @@ #define WM8994_NUM_LDO 2 #define WM8994_NUM_GPIO 11 +#define WM8994_NUM_AIF 3 struct wm8994_ldo_pdata { /** GPIOs to enable regulator, 0 or less if not available */ @@ -215,6 +216,13 @@ struct wm8994_pdata { * system. */ bool spkmode_pu; + + /** + * Maximum number of channels clocks will be generated for, + * useful for systems where and I2S bus with multiple data + * lines is mastered. + */ + int max_channels_clocked[WM8994_NUM_AIF]; }; #endif diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index c9bd445c4976..318ea64b9800 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -2656,6 +2656,8 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_codec *codec = dai->codec; struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = wm8994->wm8994; + struct wm8994_pdata *pdata = &control->pdata; int aif1_reg; int aif2_reg; int bclk_reg; @@ -2723,7 +2725,14 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, } wm8994->channels[id] = params_channels(params); - switch (params_channels(params)) { + if (pdata->max_channels_clocked[id] && + wm8994->channels[id] > pdata->max_channels_clocked[id]) { + dev_dbg(dai->dev, "Constraining channels to %d from %d\n", + pdata->max_channels_clocked[id], wm8994->channels[id]); + wm8994->channels[id] = pdata->max_channels_clocked[id]; + } + + switch (wm8994->channels[id]) { case 1: case 2: bclk_rate *= 2; @@ -2745,7 +2754,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n", dai->id, wm8994->aifclk[id], bclk_rate); - if (params_channels(params) == 1 && + if (wm8994->channels[id] == 1 && (snd_soc_read(codec, aif1_reg) & 0x18) == 0x18) aif2 |= WM8994_AIF1_MONO; -- cgit v1.2.3 From 4f1b07581613bf076b0dacdd9a3fb290d3caa227 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 10 Jan 2013 15:38:48 +0000 Subject: mfd: wm5102: Add additional speaker control registers Signed-off-by: Mark Brown --- drivers/mfd/wm5102-tables.c | 2 ++ include/linux/mfd/arizona/registers.h | 2 ++ 2 files changed, 4 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 8a6ce8c12505..7d01069c09db 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -1169,6 +1169,8 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_NOISE_GATE_CONTROL: case ARIZONA_PDM_SPK1_CTRL_1: case ARIZONA_PDM_SPK1_CTRL_2: + case ARIZONA_SPK_CTRL_2: + case ARIZONA_SPK_CTRL_3: case ARIZONA_DAC_COMP_1: case ARIZONA_DAC_COMP_2: case ARIZONA_DAC_COMP_3: diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index a61ce90ecd3f..a47fd358016f 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -217,6 +217,8 @@ #define ARIZONA_PDM_SPK1_CTRL_2 0x491 #define ARIZONA_PDM_SPK2_CTRL_1 0x492 #define ARIZONA_PDM_SPK2_CTRL_2 0x493 +#define ARIZONA_SPK_CTRL_2 0x4B5 +#define ARIZONA_SPK_CTRL_3 0x4B6 #define ARIZONA_DAC_COMP_1 0x4DC #define ARIZONA_DAC_COMP_2 0x4DD #define ARIZONA_DAC_COMP_3 0x4DE -- cgit v1.2.3 From f607e31ce3963327f749b56c65dfec2642aa623c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 22 Feb 2013 18:36:53 +0000 Subject: ASoC: arizona: Fix interaction between headphone outputs and identification Running HPDET while the headphone outputs are enabled can disrupt the operation of HPDET. In order to avoid this HPDET needs to disable the headphone outputs and ASoC needs to not enable them while HPDET is running. Do the ASoC side of this by storing the enable state in the core driver structure and only writing to the device if a flag indicating that the accessory detection side is in a state where it can have the headphone output stage enabled. Signed-off-by: Mark Brown --- include/linux/mfd/arizona/core.h | 3 +++ sound/soc/codecs/arizona.c | 33 +++++++++++++++++++++++++++++++++ sound/soc/codecs/arizona.h | 3 +++ sound/soc/codecs/wm5102.c | 8 ++++---- sound/soc/codecs/wm5110.c | 8 ++++---- 5 files changed, 47 insertions(+), 8 deletions(-) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h index a710255528d7..cc281368dc55 100644 --- a/include/linux/mfd/arizona/core.h +++ b/include/linux/mfd/arizona/core.h @@ -100,6 +100,9 @@ struct arizona { struct regmap_irq_chip_data *aod_irq_chip; struct regmap_irq_chip_data *irq_chip; + bool hpdet_magic; + unsigned int hp_ena; + struct mutex clk_lock; int clk32k_ref; diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index ac948a671ea6..e7d34711412c 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -364,6 +364,39 @@ int arizona_out_ev(struct snd_soc_dapm_widget *w, } EXPORT_SYMBOL_GPL(arizona_out_ev); +int arizona_hp_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct arizona_priv *priv = snd_soc_codec_get_drvdata(w->codec); + unsigned int mask = 1 << w->shift; + unsigned int val; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + val = mask; + break; + case SND_SOC_DAPM_PRE_PMD: + val = 0; + break; + default: + return -EINVAL; + } + + /* Store the desired state for the HP outputs */ + priv->arizona->hp_ena &= ~mask; + priv->arizona->hp_ena |= val; + + /* Force off if HPDET magic is active */ + if (priv->arizona->hpdet_magic) + val = 0; + + snd_soc_update_bits(w->codec, ARIZONA_OUTPUT_ENABLES_1, mask, val); + + return arizona_out_ev(w, kcontrol, event); +} +EXPORT_SYMBOL_GPL(arizona_hp_ev); + static unsigned int arizona_sysclk_48k_rates[] = { 6144000, 12288000, diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index 116372c91f5d..13dd2916b721 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -184,6 +184,9 @@ extern int arizona_in_ev(struct snd_soc_dapm_widget *w, extern int arizona_out_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); +extern int arizona_hp_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event); extern int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id, int source, unsigned int freq, int dir); diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c index b82bbf584146..2657aad3f8b1 100644 --- a/sound/soc/codecs/wm5102.c +++ b/sound/soc/codecs/wm5102.c @@ -1131,11 +1131,11 @@ ARIZONA_DSP_WIDGETS(DSP1, "DSP1"), SND_SOC_DAPM_VALUE_MUX("AEC Loopback", ARIZONA_DAC_AEC_CONTROL_1, ARIZONA_AEC_LOOPBACK_ENA, 0, &wm5102_aec_loopback_mux), -SND_SOC_DAPM_PGA_E("OUT1L", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT1L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, +SND_SOC_DAPM_PGA_E("OUT1L", SND_SOC_NOPM, + ARIZONA_OUT1L_ENA_SHIFT, 0, NULL, 0, arizona_hp_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), -SND_SOC_DAPM_PGA_E("OUT1R", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT1R_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, +SND_SOC_DAPM_PGA_E("OUT1R", SND_SOC_NOPM, + ARIZONA_OUT1R_ENA_SHIFT, 0, NULL, 0, arizona_hp_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_E("OUT2L", ARIZONA_OUTPUT_ENABLES_1, ARIZONA_OUT2L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c index cdeb301da1f6..7841b42a819c 100644 --- a/sound/soc/codecs/wm5110.c +++ b/sound/soc/codecs/wm5110.c @@ -551,11 +551,11 @@ SND_SOC_DAPM_AIF_IN("AIF3RX1", NULL, 0, SND_SOC_DAPM_AIF_IN("AIF3RX2", NULL, 0, ARIZONA_AIF3_RX_ENABLES, ARIZONA_AIF3RX2_ENA_SHIFT, 0), -SND_SOC_DAPM_PGA_E("OUT1L", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT1L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, +SND_SOC_DAPM_PGA_E("OUT1L", SND_SOC_NOPM, + ARIZONA_OUT1L_ENA_SHIFT, 0, NULL, 0, arizona_hp_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), -SND_SOC_DAPM_PGA_E("OUT1R", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT1R_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, +SND_SOC_DAPM_PGA_E("OUT1R", SND_SOC_NOPM, + ARIZONA_OUT1R_ENA_SHIFT, 0, NULL, 0, arizona_hp_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_E("OUT2L", ARIZONA_OUTPUT_ENABLES_1, ARIZONA_OUT2L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, -- cgit v1.2.3 From 253b5374f08f3908cc380c5665470a5b7609be1c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 11 Dec 2012 13:14:09 +0900 Subject: mfd: wm5102: Add registers for microphone detection level configuration Signed-off-by: Mark Brown --- drivers/mfd/wm5102-tables.c | 8 ++++++++ include/linux/mfd/arizona/registers.h | 4 ++++ 2 files changed, 12 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index a433f580aa4c..ca2aed6bc830 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -331,6 +331,10 @@ static const struct reg_default wm5102_reg_default[] = { { 0x000002A3, 0x1102 }, /* R675 - Mic Detect 1 */ { 0x000002A4, 0x009F }, /* R676 - Mic Detect 2 */ { 0x000002A5, 0x0000 }, /* R677 - Mic Detect 3 */ + { 0x000002A6, 0x3737 }, /* R678 - Mic Detect Level 1 */ + { 0x000002A7, 0x372C }, /* R679 - Mic Detect Level 2 */ + { 0x000002A8, 0x1422 }, /* R680 - Mic Detect Level 3 */ + { 0x000002A9, 0x030A }, /* R681 - Mic Detect Level 4 */ { 0x000002C3, 0x0000 }, /* R707 - Mic noise mix control 1 */ { 0x000002CB, 0x0000 }, /* R715 - Isolation control */ { 0x000002D3, 0x0000 }, /* R723 - Jack detect analogue */ @@ -1090,6 +1094,10 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_MIC_DETECT_1: case ARIZONA_MIC_DETECT_2: case ARIZONA_MIC_DETECT_3: + case ARIZONA_MIC_DETECT_LEVEL_1: + case ARIZONA_MIC_DETECT_LEVEL_2: + case ARIZONA_MIC_DETECT_LEVEL_3: + case ARIZONA_MIC_DETECT_LEVEL_4: case ARIZONA_MIC_NOISE_MIX_CONTROL_1: case ARIZONA_ISOLATION_CONTROL: case ARIZONA_JACK_DETECT_ANALOGUE: diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index 340355136069..f43aa7c8d040 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -124,6 +124,10 @@ #define ARIZONA_MIC_DETECT_1 0x2A3 #define ARIZONA_MIC_DETECT_2 0x2A4 #define ARIZONA_MIC_DETECT_3 0x2A5 +#define ARIZONA_MIC_DETECT_LEVEL_1 0x2A6 +#define ARIZONA_MIC_DETECT_LEVEL_2 0x2A7 +#define ARIZONA_MIC_DETECT_LEVEL_3 0x2A8 +#define ARIZONA_MIC_DETECT_LEVEL_4 0x2A9 #define ARIZONA_MIC_NOISE_MIX_CONTROL_1 0x2C3 #define ARIZONA_ISOLATION_CONTROL 0x2CB #define ARIZONA_JACK_DETECT_ANALOGUE 0x2D3 -- cgit v1.2.3 From 6fed4d869a11fdbb4c6a5e444dfb2c22f92c3e46 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 1 Apr 2013 22:03:06 +0100 Subject: extcon: arizona: Allow configuration of button detection The Arizona button detection circuit is configurable, allowing the system integrator to program a range of thresholds for the buttons supported on the accessory but currently the driver uses the default button ranges and does not provide any flexibility in how this is exposed to the application layer. Provide platform data allowing the user to control this and to map the buttons to keys in the input subsystem. Signed-off-by: Mark Brown --- drivers/extcon/extcon-arizona.c | 164 +++++++++++++++++++++++++++++--------- include/linux/mfd/arizona/pdata.h | 9 +++ 2 files changed, 134 insertions(+), 39 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 4bb0e9ae405d..e2339629126a 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -33,7 +33,7 @@ #include #include -#define ARIZONA_NUM_BUTTONS 6 +#define ARIZONA_MAX_MICD_RANGE 8 #define ARIZONA_ACCDET_MODE_MIC 0 #define ARIZONA_ACCDET_MODE_HPL 1 @@ -50,6 +50,9 @@ struct arizona_extcon_info { const struct arizona_micd_config *micd_modes; int micd_num_modes; + const struct arizona_micd_range *micd_ranges; + int num_micd_ranges; + bool micd_reva; bool micd_clamp; @@ -71,20 +74,25 @@ struct arizona_extcon_info { }; static const struct arizona_micd_config micd_default_modes[] = { - { 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 }, { ARIZONA_ACCDET_SRC, 1 << ARIZONA_MICD_BIAS_SRC_SHIFT, 0 }, + { 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 }, }; -static struct { - u16 status; - int report; -} arizona_lvl_to_key[ARIZONA_NUM_BUTTONS] = { - { 0x1, BTN_0 }, - { 0x2, BTN_1 }, - { 0x4, BTN_2 }, - { 0x8, BTN_3 }, - { 0x10, BTN_4 }, - { 0x20, BTN_5 }, +static const struct arizona_micd_range micd_default_ranges[] = { + { .max = 11, .key = BTN_0 }, + { .max = 28, .key = BTN_1 }, + { .max = 54, .key = BTN_2 }, + { .max = 100, .key = BTN_3 }, + { .max = 186, .key = BTN_4 }, + { .max = 430, .key = BTN_5 }, +}; + +static const int arizona_micd_levels[] = { + 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, + 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, + 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, + 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, + 1257, }; #define ARIZONA_CABLE_MECHANICAL 0 @@ -153,7 +161,7 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) { struct arizona *arizona = info->arizona; - mode %= info->num_micd_modes; + mode %= info->micd_num_modes; if (arizona->pdata.micd_pol_gpio > 0) gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, @@ -728,7 +736,7 @@ static irqreturn_t arizona_micdet(int irq, void *data) struct arizona_extcon_info *info = data; struct arizona *arizona = info->arizona; unsigned int val, lvl; - int ret, i; + int ret, i, key; mutex_lock(&info->lock); @@ -815,12 +823,13 @@ static irqreturn_t arizona_micdet(int irq, void *data) lvl = val & ARIZONA_MICD_LVL_MASK; lvl >>= ARIZONA_MICD_LVL_SHIFT; - for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) - if (lvl & arizona_lvl_to_key[i].status) - input_report_key(info->input, - arizona_lvl_to_key[i].report, - 1); - input_sync(info->input); + WARN_ON(!lvl); + WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); + if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { + key = info->micd_ranges[ffs(lvl) - 1].key; + input_report_key(info->input, key, 1); + input_sync(info->input); + } } else if (info->detecting) { dev_dbg(arizona->dev, "Headphone detected\n"); @@ -834,9 +843,9 @@ static irqreturn_t arizona_micdet(int irq, void *data) } } else { dev_dbg(arizona->dev, "Mic button released\n"); - for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) + for (i = 0; i < info->num_micd_ranges; i++) input_report_key(info->input, - arizona_lvl_to_key[i].report, 0); + info->micd_ranges[i].key, 0); input_sync(info->input); arizona_extcon_pulse_micbias(info); } @@ -923,9 +932,9 @@ static irqreturn_t arizona_jackdet(int irq, void *data) info->mic = false; info->hpdet_done = false; - for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) + for (i = 0; i < info->num_micd_ranges; i++) input_report_key(info->input, - arizona_lvl_to_key[i].report, 0); + info->micd_ranges[i].key, 0); input_sync(info->input); ret = extcon_update_state(&info->edev, 0xffffffff, 0); @@ -954,13 +963,33 @@ static irqreturn_t arizona_jackdet(int irq, void *data) return IRQ_HANDLED; } +/* Map a level onto a slot in the register bank */ +static void arizona_micd_set_level(struct arizona *arizona, int index, + unsigned int level) +{ + int reg; + unsigned int mask; + + reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); + + if (!(index % 2)) { + mask = 0x3f00; + level <<= 8; + } else { + mask = 0x3f; + } + + /* Program the level itself */ + regmap_update_bits(arizona->regmap, reg, mask, level); +} + static int arizona_extcon_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); struct arizona_pdata *pdata; struct arizona_extcon_info *info; int jack_irq_fall, jack_irq_rise; - int ret, mode, i; + int ret, mode, i, j; if (!arizona->dapm || !arizona->dapm->card) return -EPROBE_DEFER; @@ -1013,6 +1042,17 @@ static int arizona_extcon_probe(struct platform_device *pdev) goto err; } + info->input = devm_input_allocate_device(&pdev->dev); + if (!info->input) { + dev_err(arizona->dev, "Can't allocate input dev\n"); + ret = -ENOMEM; + goto err_register; + } + + info->input->name = "Headset"; + info->input->phys = "arizona/extcon"; + info->input->dev.parent = &pdev->dev; + if (pdata->num_micd_configs) { info->micd_modes = pdata->micd_configs; info->micd_num_modes = pdata->num_micd_configs; @@ -1068,6 +1108,66 @@ static int arizona_extcon_probe(struct platform_device *pdev) arizona->pdata.micd_dbtime << ARIZONA_MICD_DBTIME_SHIFT); + BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40); + + if (arizona->pdata.num_micd_ranges) { + info->micd_ranges = pdata->micd_ranges; + info->num_micd_ranges = pdata->num_micd_ranges; + } else { + info->micd_ranges = micd_default_ranges; + info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); + } + + if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { + dev_err(arizona->dev, "Too many MICD ranges: %d\n", + arizona->pdata.num_micd_ranges); + } + + if (info->num_micd_ranges > 1) { + for (i = 1; i < info->num_micd_ranges; i++) { + if (info->micd_ranges[i - 1].max > + info->micd_ranges[i].max) { + dev_err(arizona->dev, + "MICD ranges must be sorted\n"); + ret = -EINVAL; + goto err_input; + } + } + } + + /* Disable all buttons by default */ + regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, + ARIZONA_MICD_LVL_SEL_MASK, 0x81); + + /* Set up all the buttons the user specified */ + for (i = 0; i < info->num_micd_ranges; i++) { + for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++) + if (arizona_micd_levels[j] >= info->micd_ranges[i].max) + break; + + if (j == ARRAY_SIZE(arizona_micd_levels)) { + dev_err(arizona->dev, "Unsupported MICD level %d\n", + info->micd_ranges[i].max); + ret = -EINVAL; + goto err_input; + } + + dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", + arizona_micd_levels[j], i); + + arizona_micd_set_level(arizona, i, j); + input_set_capability(info->input, EV_KEY, + info->micd_ranges[i].key); + + /* Enable reporting of that range */ + regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, + 1 << i, 1 << i); + } + + /* Set all the remaining keys to a maximum */ + for (; i < ARIZONA_MAX_MICD_RANGE; i++) + arizona_micd_set_level(arizona, i, 0x3f); + /* * If we have a clamp use it, activating in conjunction with * GPIO5 if that is connected for jack detect operation. @@ -1095,20 +1195,6 @@ static int arizona_extcon_probe(struct platform_device *pdev) arizona_extcon_set_mode(info, 0); - info->input = devm_input_allocate_device(&pdev->dev); - if (!info->input) { - dev_err(arizona->dev, "Can't allocate input dev\n"); - ret = -ENOMEM; - goto err_register; - } - - for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) - input_set_capability(info->input, EV_KEY, - arizona_lvl_to_key[i].report); - info->input->name = "Headset"; - info->input->phys = "arizona/extcon"; - info->input->dev.parent = &pdev->dev; - pm_runtime_enable(&pdev->dev); pm_runtime_idle(&pdev->dev); pm_runtime_get_sync(&pdev->dev); diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 455c51d22d6b..eb11a8ac6db2 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -86,6 +86,11 @@ struct arizona_micd_config { bool gpio; }; +struct arizona_micd_range { + int max; /** Ohms */ + int key; /** Key to report to input layer */ +}; + struct arizona_pdata { int reset; /** GPIO controlling /RESET, if any */ int ldoena; /** GPIO controlling LODENA, if any */ @@ -138,6 +143,10 @@ struct arizona_pdata { /** Force MICBIAS on for mic detect */ bool micd_force_micbias; + /** Mic detect level parameters */ + const struct arizona_micd_range *micd_ranges; + int num_micd_ranges; + /** Headset polarity configurations */ struct arizona_micd_config *micd_configs; int num_micd_configs; -- cgit v1.2.3 From e56a0a572be150c79cdbf62ff98f4a63419e1c0b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 1 Apr 2013 19:03:52 +0100 Subject: extcon: arizona: Allow pull to be disabled on GPIO5 when used for JACKET In some designs an external pull won't be needed. Signed-off-by: Mark Brown --- drivers/extcon/extcon-arizona.c | 9 +++++++-- include/linux/mfd/arizona/pdata.h | 3 +++ 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 95748d3cbc4e..132bc99fdc06 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -986,6 +986,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); struct arizona_pdata *pdata; struct arizona_extcon_info *info; + unsigned int val; int jack_irq_fall, jack_irq_rise; int ret, mode, i, j; @@ -1172,9 +1173,13 @@ static int arizona_extcon_probe(struct platform_device *pdev) */ if (info->micd_clamp) { if (arizona->pdata.jd_gpio5) { - /* Put the GPIO into input mode */ + /* Put the GPIO into input mode with optional pull */ + val = 0xc101; + if (arizona->pdata.jd_gpio5_nopull) + val &= ~ARIZONA_GPN_PU; + regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, - 0xc101); + val); regmap_update_bits(arizona->regmap, ARIZONA_MICD_CLAMP_CONTROL, diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index eb11a8ac6db2..008b8c40549f 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -122,6 +122,9 @@ struct arizona_pdata { /** GPIO5 is used for jack detection */ bool jd_gpio5; + /** Internal pull on GPIO5 is disabled when used for jack detection */ + bool jd_gpio5_nopull; + /** Use the headphone detect circuit to identify the accessory */ bool hpdet_acc_id; -- cgit v1.2.3 From 9c2ba270eaa227c999af451e1c2c9bf0d24aa8e5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 25 Feb 2013 23:42:31 +0000 Subject: extcon: arizona: Simplify HPDET based identification Rather than measuring both HP channels we can simply directly measure the microphone impedance and then rely on MICDET for final confirmation of the presence of a suitable microphone. This improves the overall performance of the identification process. Signed-off-by: Mark Brown --- drivers/extcon/extcon-arizona.c | 46 +++++++++++++++++++++------------------ include/linux/mfd/arizona/pdata.h | 3 +++ 2 files changed, 28 insertions(+), 21 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 7c4ce812d735..a83ca27aa99f 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -459,7 +459,8 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info) return val; } -static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading) +static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, + bool *mic) { struct arizona *arizona = info->arizona; int id_gpio = arizona->pdata.hpdet_id_gpio; @@ -470,11 +471,9 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading) */ if (arizona->pdata.hpdet_acc_id) { info->hpdet_res[info->num_hpdet_res++] = *reading; - info->hpdet_res[info->num_hpdet_res++] = *reading; /* Only check the mic directly if we didn't already ID it */ - if (id_gpio && info->num_hpdet_res == 2 && - !((info->hpdet_res[0] > info->hpdet_res[1] * 2))) { + if (id_gpio && info->num_hpdet_res == 1) { dev_dbg(arizona->dev, "Measuring mic\n"); regmap_update_bits(arizona->regmap, @@ -493,10 +492,8 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading) } /* OK, got both. Now, compare... */ - dev_dbg(arizona->dev, "HPDET measured %d %d %d\n", - info->hpdet_res[0], info->hpdet_res[1], - info->hpdet_res[2]); - + dev_dbg(arizona->dev, "HPDET measured %d %d\n", + info->hpdet_res[0], info->hpdet_res[1]); /* Take the headphone impedance for the main report */ *reading = info->hpdet_res[0]; @@ -512,13 +509,11 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading) } /* - * Either the two grounds measure differently or we - * measure the mic as high impedance. + * If we measure the mic as */ - if ((info->hpdet_res[0] > info->hpdet_res[1] * 2) || - (id_gpio && info->hpdet_res[2] > 1257)) { + if (!id_gpio || info->hpdet_res[1] > 50) { dev_dbg(arizona->dev, "Detected mic\n"); - info->mic = true; + *mic = true; info->detecting = true; } else { dev_dbg(arizona->dev, "Detected headphone\n"); @@ -541,6 +536,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data) int id_gpio = arizona->pdata.hpdet_id_gpio; int report = ARIZONA_CABLE_HEADPHONE; int ret, reading; + bool mic = false; mutex_lock(&info->lock); @@ -576,7 +572,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data) ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, 0); - ret = arizona_hpdet_do_id(info, &reading); + ret = arizona_hpdet_do_id(info, &reading, &mic); if (ret == -EAGAIN) { goto out; } else if (ret < 0) { @@ -606,7 +602,7 @@ done: ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); /* If we have a mic then reenable MICDET */ - if (info->mic) + if (mic || info->mic) arizona_start_mic(info); if (info->hpdet_active) { @@ -681,6 +677,8 @@ err: static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) { struct arizona *arizona = info->arizona; + int hp_reading = 32; + bool mic; int ret; dev_dbg(arizona->dev, "Starting identification via HPDET\n"); @@ -702,12 +700,18 @@ static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) goto err; } - ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, - ARIZONA_HP_POLL, ARIZONA_HP_POLL); - if (ret != 0) { - dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", - ret); - goto err; + if (arizona->pdata.hpdet_acc_id_line) { + ret = regmap_update_bits(arizona->regmap, + ARIZONA_HEADPHONE_DETECT_1, + ARIZONA_HP_POLL, ARIZONA_HP_POLL); + if (ret != 0) { + dev_err(arizona->dev, + "Can't start HPDETL measurement: %d\n", + ret); + goto err; + } + } else { + arizona_hpdet_do_id(info, &hp_reading, &mic); } return; diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 008b8c40549f..45c84777c624 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -128,6 +128,9 @@ struct arizona_pdata { /** Use the headphone detect circuit to identify the accessory */ bool hpdet_acc_id; + /** Check for line output with HPDET method */ + bool hpdet_acc_id_line; + /** GPIO used for mic isolation with HPDET */ int hpdet_id_gpio; -- cgit v1.2.3 From cd59e79656f4e7137909166248a935d422b1245a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 1 Apr 2013 19:21:48 +0100 Subject: extcon: arizona: Allow additional debounce during microphone detection Help mitigate against mechanical bounce during the initial detection by allowing the configuration of an additional debounce on top of that the hardware does during the initial phase of microphone detection operation. Signed-off-by: Mark Brown --- drivers/extcon/extcon-arizona.c | 35 ++++++++++++++++++++++++++++++----- include/linux/mfd/arizona/pdata.h | 3 +++ 2 files changed, 33 insertions(+), 5 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 26f9a1ae15c4..c7f8eb4299d2 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -64,6 +64,7 @@ struct arizona_extcon_info { bool micd_clamp; struct delayed_work hpdet_work; + struct delayed_work micd_detect_work; struct delayed_work micd_timeout_work; bool hpdet_active; @@ -750,9 +751,11 @@ static void arizona_micd_timeout_work(struct work_struct *work) mutex_unlock(&info->lock); } -static irqreturn_t arizona_micdet(int irq, void *data) +static void arizona_micd_detect(struct work_struct *work) { - struct arizona_extcon_info *info = data; + struct arizona_extcon_info *info = container_of(work, + struct arizona_extcon_info, + micd_detect_work.work); struct arizona *arizona = info->arizona; unsigned int val = 0, lvl; int ret, i, key; @@ -766,7 +769,7 @@ static irqreturn_t arizona_micdet(int irq, void *data) if (ret != 0) { dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret); mutex_unlock(&info->lock); - return IRQ_NONE; + return; } dev_dbg(arizona->dev, "MICDET: %x\n", val); @@ -774,14 +777,14 @@ static irqreturn_t arizona_micdet(int irq, void *data) if (!(val & ARIZONA_MICD_VALID)) { dev_warn(arizona->dev, "Microphone detection state invalid\n"); mutex_unlock(&info->lock); - return IRQ_NONE; + return; } } if (i == 10 && !(val & 0x7fc)) { dev_err(arizona->dev, "Failed to get valid MICDET value\n"); mutex_unlock(&info->lock); - return IRQ_NONE; + return; } /* Due to jack detect this should never happen */ @@ -890,6 +893,27 @@ handled: pm_runtime_mark_last_busy(info->dev); mutex_unlock(&info->lock); +} + +static irqreturn_t arizona_micdet(int irq, void *data) +{ + struct arizona_extcon_info *info = data; + struct arizona *arizona = info->arizona; + int debounce = arizona->pdata.micd_detect_debounce; + + cancel_delayed_work_sync(&info->micd_detect_work); + cancel_delayed_work_sync(&info->micd_timeout_work); + + mutex_lock(&info->lock); + if (!info->detecting) + debounce = 0; + mutex_unlock(&info->lock); + + if (debounce) + schedule_delayed_work(&info->micd_detect_work, + msecs_to_jiffies(debounce)); + else + arizona_micd_detect(&info->micd_detect_work.work); return IRQ_HANDLED; } @@ -1072,6 +1096,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) info->dev = &pdev->dev; info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); + INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); platform_set_drvdata(pdev, info); diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 45c84777c624..3ef300baa2e6 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -134,6 +134,9 @@ struct arizona_pdata { /** GPIO used for mic isolation with HPDET */ int hpdet_id_gpio; + /** Extra debounce timeout used during initial mic detection (ms) */ + int micd_detect_debounce; + /** GPIO for mic detection polarity */ int micd_pol_gpio; -- cgit v1.2.3 From 7abd4e2a8f1c3e534da44c35e2d3d6353573e51f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 1 Apr 2013 19:25:55 +0100 Subject: extcon: arizona: Make mic detection timeout configurable Signed-off-by: Mark Brown --- drivers/extcon/extcon-arizona.c | 13 ++++++++++--- include/linux/mfd/arizona/pdata.h | 3 +++ 2 files changed, 13 insertions(+), 3 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index c7f8eb4299d2..7a1b4a7791ba 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -42,7 +42,7 @@ #define ARIZONA_HPDET_MAX 10000 #define HPDET_DEBOUNCE 500 -#define MICD_TIMEOUT 2000 +#define DEFAULT_MICD_TIMEOUT 2000 struct arizona_extcon_info { struct device *dev; @@ -60,6 +60,8 @@ struct arizona_extcon_info { const struct arizona_micd_range *micd_ranges; int num_micd_ranges; + int micd_timeout; + bool micd_reva; bool micd_clamp; @@ -889,7 +891,7 @@ static void arizona_micd_detect(struct work_struct *work) handled: if (info->detecting) schedule_delayed_work(&info->micd_timeout_work, - msecs_to_jiffies(MICD_TIMEOUT)); + msecs_to_jiffies(info->micd_timeout)); pm_runtime_mark_last_busy(info->dev); mutex_unlock(&info->lock); @@ -970,7 +972,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data) if (cancelled_mic) schedule_delayed_work(&info->micd_timeout_work, - msecs_to_jiffies(MICD_TIMEOUT)); + msecs_to_jiffies(info->micd_timeout)); goto out; } @@ -1027,6 +1029,11 @@ static irqreturn_t arizona_jackdet(int irq, void *data) ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); } + if (arizona->pdata.micd_timeout) + info->micd_timeout = arizona->pdata.micd_timeout; + else + info->micd_timeout = DEFAULT_MICD_TIMEOUT; + /* Clear trig_sts to make sure DCVDD is not forced up */ regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, ARIZONA_MICD_CLAMP_FALL_TRIG_STS | diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 3ef300baa2e6..a0f940987a3e 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -149,6 +149,9 @@ struct arizona_pdata { /** Mic detect debounce level */ int micd_dbtime; + /** Mic detect timeout (ms) */ + int micd_timeout; + /** Force MICBIAS on for mic detect */ bool micd_force_micbias; -- cgit v1.2.3 From c4e67bbc99ce661808c3ee77b0bb5779d0df11ca Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 2 Apr 2013 13:24:19 +0100 Subject: ARM: ux500: Pass regulator platform data using the new format Regulator platform data is now passed though a single structure as opposed to the old way where four separate struct elements were required. This patch makes use of the new format. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- arch/arm/mach-ux500/board-mop500.c | 5 +---- include/linux/mfd/abx500/ab8500.h | 11 ++--------- 2 files changed, 3 insertions(+), 13 deletions(-) (limited to 'include/linux/mfd') diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index b03457881c4b..b1124bd34a6c 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -198,10 +198,7 @@ static struct platform_device snowball_sbnet_dev = { struct ab8500_platform_data ab8500_platdata = { .irq_base = MOP500_AB8500_IRQ_BASE, - .regulator_reg_init = ab8500_regulator_reg_init, - .num_regulator_reg_init = ARRAY_SIZE(ab8500_regulator_reg_init), - .regulator = ab8500_regulators, - .num_regulator = ARRAY_SIZE(ab8500_regulators), + .regulator = &ab8500_regulator_plat_data, .gpio = &ab8500_gpio_pdata, .codec = &ab8500_codec_pdata, }; diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 9db0bda446a0..84f449475c25 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -364,8 +364,7 @@ struct ab8500 { const int *irq_reg_offset; }; -struct regulator_reg_init; -struct regulator_init_data; +struct ab8500_regulator_platform_data; struct ab8500_gpio_platform_data; struct ab8500_codec_platform_data; struct ab8500_sysctrl_platform_data; @@ -375,19 +374,13 @@ struct ab8500_sysctrl_platform_data; * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used * @pm_power_off: Should machine pm power off hook be registered or not * @init: board-specific initialization after detection of ab8500 - * @num_regulator_reg_init: number of regulator init registers - * @regulator_reg_init: regulator init registers - * @num_regulator: number of regulators * @regulator: machine-specific constraints for regulators */ struct ab8500_platform_data { int irq_base; bool pm_power_off; void (*init) (struct ab8500 *); - int num_regulator_reg_init; - struct ab8500_regulator_reg_init *regulator_reg_init; - int num_regulator; - struct regulator_init_data *regulator; + struct ab8500_regulator_platform_data *regulator; struct abx500_gpio_platform_data *gpio; struct ab8500_codec_platform_data *codec; struct ab8500_sysctrl_platform_data *sysctrl; -- cgit v1.2.3 From deaf39efbc0829f26ae0b8fbe5de820588982f72 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 25 Feb 2013 14:08:36 -0800 Subject: mfd: Add ChromeOS EC messages header This file is included verbatim from the ChromeOS EC respository. Ideally we would prefer to avoid changing it, to make it easier to track this rapidly-changing file. Signed-off-by: Simon Glass Signed-off-by: Che-Liang Chiou Signed-off-by: Vincent Palatin Signed-off-by: Samuel Ortiz --- include/linux/mfd/cros_ec_commands.h | 1369 ++++++++++++++++++++++++++++++++++ 1 file changed, 1369 insertions(+) create mode 100644 include/linux/mfd/cros_ec_commands.h (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h new file mode 100644 index 000000000000..86fd06953bcd --- /dev/null +++ b/include/linux/mfd/cros_ec_commands.h @@ -0,0 +1,1369 @@ +/* + * Host communication command constants for ChromeOS EC + * + * Copyright (C) 2012 Google, Inc + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + * The ChromeOS EC multi function device is used to mux all the requests + * to the EC device for its multiple features: keyboard controller, + * battery charging and regulator control, firmware update. + * + * NOTE: This file is copied verbatim from the ChromeOS EC Open Source + * project in an attempt to make future updates easy to make. + */ + +#ifndef __CROS_EC_COMMANDS_H +#define __CROS_EC_COMMANDS_H + +/* + * Protocol overview + * + * request: CMD [ P0 P1 P2 ... Pn S ] + * response: ERR [ P0 P1 P2 ... Pn S ] + * + * where the bytes are defined as follow : + * - CMD is the command code. (defined by EC_CMD_ constants) + * - ERR is the error code. (defined by EC_RES_ constants) + * - Px is the optional payload. + * it is not sent if the error code is not success. + * (defined by ec_params_ and ec_response_ structures) + * - S is the checksum which is the sum of all payload bytes. + * + * On LPC, CMD and ERR are sent/received at EC_LPC_ADDR_KERNEL|USER_CMD + * and the payloads are sent/received at EC_LPC_ADDR_KERNEL|USER_PARAM. + * On I2C, all bytes are sent serially in the same message. + */ + +/* Current version of this protocol */ +#define EC_PROTO_VERSION 0x00000002 + +/* Command version mask */ +#define EC_VER_MASK(version) (1UL << (version)) + +/* I/O addresses for ACPI commands */ +#define EC_LPC_ADDR_ACPI_DATA 0x62 +#define EC_LPC_ADDR_ACPI_CMD 0x66 + +/* I/O addresses for host command */ +#define EC_LPC_ADDR_HOST_DATA 0x200 +#define EC_LPC_ADDR_HOST_CMD 0x204 + +/* I/O addresses for host command args and params */ +#define EC_LPC_ADDR_HOST_ARGS 0x800 +#define EC_LPC_ADDR_HOST_PARAM 0x804 +#define EC_HOST_PARAM_SIZE 0x0fc /* Size of param area in bytes */ + +/* I/O addresses for host command params, old interface */ +#define EC_LPC_ADDR_OLD_PARAM 0x880 +#define EC_OLD_PARAM_SIZE 0x080 /* Size of param area in bytes */ + +/* EC command register bit functions */ +#define EC_LPC_CMDR_DATA (1 << 0) /* Data ready for host to read */ +#define EC_LPC_CMDR_PENDING (1 << 1) /* Write pending to EC */ +#define EC_LPC_CMDR_BUSY (1 << 2) /* EC is busy processing a command */ +#define EC_LPC_CMDR_CMD (1 << 3) /* Last host write was a command */ +#define EC_LPC_CMDR_ACPI_BRST (1 << 4) /* Burst mode (not used) */ +#define EC_LPC_CMDR_SCI (1 << 5) /* SCI event is pending */ +#define EC_LPC_CMDR_SMI (1 << 6) /* SMI event is pending */ + +#define EC_LPC_ADDR_MEMMAP 0x900 +#define EC_MEMMAP_SIZE 255 /* ACPI IO buffer max is 255 bytes */ +#define EC_MEMMAP_TEXT_MAX 8 /* Size of a string in the memory map */ + +/* The offset address of each type of data in mapped memory. */ +#define EC_MEMMAP_TEMP_SENSOR 0x00 /* Temp sensors */ +#define EC_MEMMAP_FAN 0x10 /* Fan speeds */ +#define EC_MEMMAP_TEMP_SENSOR_B 0x18 /* Temp sensors (second set) */ +#define EC_MEMMAP_ID 0x20 /* 'E' 'C' */ +#define EC_MEMMAP_ID_VERSION 0x22 /* Version of data in 0x20 - 0x2f */ +#define EC_MEMMAP_THERMAL_VERSION 0x23 /* Version of data in 0x00 - 0x1f */ +#define EC_MEMMAP_BATTERY_VERSION 0x24 /* Version of data in 0x40 - 0x7f */ +#define EC_MEMMAP_SWITCHES_VERSION 0x25 /* Version of data in 0x30 - 0x33 */ +#define EC_MEMMAP_EVENTS_VERSION 0x26 /* Version of data in 0x34 - 0x3f */ +#define EC_MEMMAP_HOST_CMD_FLAGS 0x27 /* Host command interface flags */ +#define EC_MEMMAP_SWITCHES 0x30 +#define EC_MEMMAP_HOST_EVENTS 0x34 +#define EC_MEMMAP_BATT_VOLT 0x40 /* Battery Present Voltage */ +#define EC_MEMMAP_BATT_RATE 0x44 /* Battery Present Rate */ +#define EC_MEMMAP_BATT_CAP 0x48 /* Battery Remaining Capacity */ +#define EC_MEMMAP_BATT_FLAG 0x4c /* Battery State, defined below */ +#define EC_MEMMAP_BATT_DCAP 0x50 /* Battery Design Capacity */ +#define EC_MEMMAP_BATT_DVLT 0x54 /* Battery Design Voltage */ +#define EC_MEMMAP_BATT_LFCC 0x58 /* Battery Last Full Charge Capacity */ +#define EC_MEMMAP_BATT_CCNT 0x5c /* Battery Cycle Count */ +#define EC_MEMMAP_BATT_MFGR 0x60 /* Battery Manufacturer String */ +#define EC_MEMMAP_BATT_MODEL 0x68 /* Battery Model Number String */ +#define EC_MEMMAP_BATT_SERIAL 0x70 /* Battery Serial Number String */ +#define EC_MEMMAP_BATT_TYPE 0x78 /* Battery Type String */ + +/* Number of temp sensors at EC_MEMMAP_TEMP_SENSOR */ +#define EC_TEMP_SENSOR_ENTRIES 16 +/* + * Number of temp sensors at EC_MEMMAP_TEMP_SENSOR_B. + * + * Valid only if EC_MEMMAP_THERMAL_VERSION returns >= 2. + */ +#define EC_TEMP_SENSOR_B_ENTRIES 8 +#define EC_TEMP_SENSOR_NOT_PRESENT 0xff +#define EC_TEMP_SENSOR_ERROR 0xfe +#define EC_TEMP_SENSOR_NOT_POWERED 0xfd +#define EC_TEMP_SENSOR_NOT_CALIBRATED 0xfc +/* + * The offset of temperature value stored in mapped memory. This allows + * reporting a temperature range of 200K to 454K = -73C to 181C. + */ +#define EC_TEMP_SENSOR_OFFSET 200 + +#define EC_FAN_SPEED_ENTRIES 4 /* Number of fans at EC_MEMMAP_FAN */ +#define EC_FAN_SPEED_NOT_PRESENT 0xffff /* Entry not present */ +#define EC_FAN_SPEED_STALLED 0xfffe /* Fan stalled */ + +/* Battery bit flags at EC_MEMMAP_BATT_FLAG. */ +#define EC_BATT_FLAG_AC_PRESENT 0x01 +#define EC_BATT_FLAG_BATT_PRESENT 0x02 +#define EC_BATT_FLAG_DISCHARGING 0x04 +#define EC_BATT_FLAG_CHARGING 0x08 +#define EC_BATT_FLAG_LEVEL_CRITICAL 0x10 + +/* Switch flags at EC_MEMMAP_SWITCHES */ +#define EC_SWITCH_LID_OPEN 0x01 +#define EC_SWITCH_POWER_BUTTON_PRESSED 0x02 +#define EC_SWITCH_WRITE_PROTECT_DISABLED 0x04 +/* Recovery requested via keyboard */ +#define EC_SWITCH_KEYBOARD_RECOVERY 0x08 +/* Recovery requested via dedicated signal (from servo board) */ +#define EC_SWITCH_DEDICATED_RECOVERY 0x10 +/* Was fake developer mode switch; now unused. Remove in next refactor. */ +#define EC_SWITCH_IGNORE0 0x20 + +/* Host command interface flags */ +/* Host command interface supports LPC args (LPC interface only) */ +#define EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED 0x01 + +/* Wireless switch flags */ +#define EC_WIRELESS_SWITCH_WLAN 0x01 +#define EC_WIRELESS_SWITCH_BLUETOOTH 0x02 + +/* + * This header file is used in coreboot both in C and ACPI code. The ACPI code + * is pre-processed to handle constants but the ASL compiler is unable to + * handle actual C code so keep it separate. + */ +#ifndef __ACPI__ + +/* LPC command status byte masks */ +/* EC has written a byte in the data register and host hasn't read it yet */ +#define EC_LPC_STATUS_TO_HOST 0x01 +/* Host has written a command/data byte and the EC hasn't read it yet */ +#define EC_LPC_STATUS_FROM_HOST 0x02 +/* EC is processing a command */ +#define EC_LPC_STATUS_PROCESSING 0x04 +/* Last write to EC was a command, not data */ +#define EC_LPC_STATUS_LAST_CMD 0x08 +/* EC is in burst mode. Unsupported by Chrome EC, so this bit is never set */ +#define EC_LPC_STATUS_BURST_MODE 0x10 +/* SCI event is pending (requesting SCI query) */ +#define EC_LPC_STATUS_SCI_PENDING 0x20 +/* SMI event is pending (requesting SMI query) */ +#define EC_LPC_STATUS_SMI_PENDING 0x40 +/* (reserved) */ +#define EC_LPC_STATUS_RESERVED 0x80 + +/* + * EC is busy. This covers both the EC processing a command, and the host has + * written a new command but the EC hasn't picked it up yet. + */ +#define EC_LPC_STATUS_BUSY_MASK \ + (EC_LPC_STATUS_FROM_HOST | EC_LPC_STATUS_PROCESSING) + +/* Host command response codes */ +enum ec_status { + EC_RES_SUCCESS = 0, + EC_RES_INVALID_COMMAND = 1, + EC_RES_ERROR = 2, + EC_RES_INVALID_PARAM = 3, + EC_RES_ACCESS_DENIED = 4, + EC_RES_INVALID_RESPONSE = 5, + EC_RES_INVALID_VERSION = 6, + EC_RES_INVALID_CHECKSUM = 7, + EC_RES_IN_PROGRESS = 8, /* Accepted, command in progress */ + EC_RES_UNAVAILABLE = 9, /* No response available */ + EC_RES_TIMEOUT = 10, /* We got a timeout */ + EC_RES_OVERFLOW = 11, /* Table / data overflow */ +}; + +/* + * Host event codes. Note these are 1-based, not 0-based, because ACPI query + * EC command uses code 0 to mean "no event pending". We explicitly specify + * each value in the enum listing so they won't change if we delete/insert an + * item or rearrange the list (it needs to be stable across platforms, not + * just within a single compiled instance). + */ +enum host_event_code { + EC_HOST_EVENT_LID_CLOSED = 1, + EC_HOST_EVENT_LID_OPEN = 2, + EC_HOST_EVENT_POWER_BUTTON = 3, + EC_HOST_EVENT_AC_CONNECTED = 4, + EC_HOST_EVENT_AC_DISCONNECTED = 5, + EC_HOST_EVENT_BATTERY_LOW = 6, + EC_HOST_EVENT_BATTERY_CRITICAL = 7, + EC_HOST_EVENT_BATTERY = 8, + EC_HOST_EVENT_THERMAL_THRESHOLD = 9, + EC_HOST_EVENT_THERMAL_OVERLOAD = 10, + EC_HOST_EVENT_THERMAL = 11, + EC_HOST_EVENT_USB_CHARGER = 12, + EC_HOST_EVENT_KEY_PRESSED = 13, + /* + * EC has finished initializing the host interface. The host can check + * for this event following sending a EC_CMD_REBOOT_EC command to + * determine when the EC is ready to accept subsequent commands. + */ + EC_HOST_EVENT_INTERFACE_READY = 14, + /* Keyboard recovery combo has been pressed */ + EC_HOST_EVENT_KEYBOARD_RECOVERY = 15, + + /* Shutdown due to thermal overload */ + EC_HOST_EVENT_THERMAL_SHUTDOWN = 16, + /* Shutdown due to battery level too low */ + EC_HOST_EVENT_BATTERY_SHUTDOWN = 17, + + /* + * The high bit of the event mask is not used as a host event code. If + * it reads back as set, then the entire event mask should be + * considered invalid by the host. This can happen when reading the + * raw event status via EC_MEMMAP_HOST_EVENTS but the LPC interface is + * not initialized on the EC, or improperly configured on the host. + */ + EC_HOST_EVENT_INVALID = 32 +}; +/* Host event mask */ +#define EC_HOST_EVENT_MASK(event_code) (1UL << ((event_code) - 1)) + +/* Arguments at EC_LPC_ADDR_HOST_ARGS */ +struct ec_lpc_host_args { + uint8_t flags; + uint8_t command_version; + uint8_t data_size; + /* + * Checksum; sum of command + flags + command_version + data_size + + * all params/response data bytes. + */ + uint8_t checksum; +} __packed; + +/* Flags for ec_lpc_host_args.flags */ +/* + * Args are from host. Data area at EC_LPC_ADDR_HOST_PARAM contains command + * params. + * + * If EC gets a command and this flag is not set, this is an old-style command. + * Command version is 0 and params from host are at EC_LPC_ADDR_OLD_PARAM with + * unknown length. EC must respond with an old-style response (that is, + * withouth setting EC_HOST_ARGS_FLAG_TO_HOST). + */ +#define EC_HOST_ARGS_FLAG_FROM_HOST 0x01 +/* + * Args are from EC. Data area at EC_LPC_ADDR_HOST_PARAM contains response. + * + * If EC responds to a command and this flag is not set, this is an old-style + * response. Command version is 0 and response data from EC is at + * EC_LPC_ADDR_OLD_PARAM with unknown length. + */ +#define EC_HOST_ARGS_FLAG_TO_HOST 0x02 + +/* + * Notes on commands: + * + * Each command is an 8-byte command value. Commands which take params or + * return response data specify structs for that data. If no struct is + * specified, the command does not input or output data, respectively. + * Parameter/response length is implicit in the structs. Some underlying + * communication protocols (I2C, SPI) may add length or checksum headers, but + * those are implementation-dependent and not defined here. + */ + +/*****************************************************************************/ +/* General / test commands */ + +/* + * Get protocol version, used to deal with non-backward compatible protocol + * changes. + */ +#define EC_CMD_PROTO_VERSION 0x00 + +struct ec_response_proto_version { + uint32_t version; +} __packed; + +/* + * Hello. This is a simple command to test the EC is responsive to + * commands. + */ +#define EC_CMD_HELLO 0x01 + +struct ec_params_hello { + uint32_t in_data; /* Pass anything here */ +} __packed; + +struct ec_response_hello { + uint32_t out_data; /* Output will be in_data + 0x01020304 */ +} __packed; + +/* Get version number */ +#define EC_CMD_GET_VERSION 0x02 + +enum ec_current_image { + EC_IMAGE_UNKNOWN = 0, + EC_IMAGE_RO, + EC_IMAGE_RW +}; + +struct ec_response_get_version { + /* Null-terminated version strings for RO, RW */ + char version_string_ro[32]; + char version_string_rw[32]; + char reserved[32]; /* Was previously RW-B string */ + uint32_t current_image; /* One of ec_current_image */ +} __packed; + +/* Read test */ +#define EC_CMD_READ_TEST 0x03 + +struct ec_params_read_test { + uint32_t offset; /* Starting value for read buffer */ + uint32_t size; /* Size to read in bytes */ +} __packed; + +struct ec_response_read_test { + uint32_t data[32]; +} __packed; + +/* + * Get build information + * + * Response is null-terminated string. + */ +#define EC_CMD_GET_BUILD_INFO 0x04 + +/* Get chip info */ +#define EC_CMD_GET_CHIP_INFO 0x05 + +struct ec_response_get_chip_info { + /* Null-terminated strings */ + char vendor[32]; + char name[32]; + char revision[32]; /* Mask version */ +} __packed; + +/* Get board HW version */ +#define EC_CMD_GET_BOARD_VERSION 0x06 + +struct ec_response_board_version { + uint16_t board_version; /* A monotonously incrementing number. */ +} __packed; + +/* + * Read memory-mapped data. + * + * This is an alternate interface to memory-mapped data for bus protocols + * which don't support direct-mapped memory - I2C, SPI, etc. + * + * Response is params.size bytes of data. + */ +#define EC_CMD_READ_MEMMAP 0x07 + +struct ec_params_read_memmap { + uint8_t offset; /* Offset in memmap (EC_MEMMAP_*) */ + uint8_t size; /* Size to read in bytes */ +} __packed; + +/* Read versions supported for a command */ +#define EC_CMD_GET_CMD_VERSIONS 0x08 + +struct ec_params_get_cmd_versions { + uint8_t cmd; /* Command to check */ +} __packed; + +struct ec_response_get_cmd_versions { + /* + * Mask of supported versions; use EC_VER_MASK() to compare with a + * desired version. + */ + uint32_t version_mask; +} __packed; + +/* + * Check EC communcations status (busy). This is needed on i2c/spi but not + * on lpc since it has its own out-of-band busy indicator. + * + * lpc must read the status from the command register. Attempting this on + * lpc will overwrite the args/parameter space and corrupt its data. + */ +#define EC_CMD_GET_COMMS_STATUS 0x09 + +/* Avoid using ec_status which is for return values */ +enum ec_comms_status { + EC_COMMS_STATUS_PROCESSING = 1 << 0, /* Processing cmd */ +}; + +struct ec_response_get_comms_status { + uint32_t flags; /* Mask of enum ec_comms_status */ +} __packed; + + +/*****************************************************************************/ +/* Flash commands */ + +/* Get flash info */ +#define EC_CMD_FLASH_INFO 0x10 + +struct ec_response_flash_info { + /* Usable flash size, in bytes */ + uint32_t flash_size; + /* + * Write block size. Write offset and size must be a multiple + * of this. + */ + uint32_t write_block_size; + /* + * Erase block size. Erase offset and size must be a multiple + * of this. + */ + uint32_t erase_block_size; + /* + * Protection block size. Protection offset and size must be a + * multiple of this. + */ + uint32_t protect_block_size; +} __packed; + +/* + * Read flash + * + * Response is params.size bytes of data. + */ +#define EC_CMD_FLASH_READ 0x11 + +struct ec_params_flash_read { + uint32_t offset; /* Byte offset to read */ + uint32_t size; /* Size to read in bytes */ +} __packed; + +/* Write flash */ +#define EC_CMD_FLASH_WRITE 0x12 + +struct ec_params_flash_write { + uint32_t offset; /* Byte offset to write */ + uint32_t size; /* Size to write in bytes */ + /* + * Data to write. Could really use EC_PARAM_SIZE - 8, but tidiest to + * use a power of 2 so writes stay aligned. + */ + uint8_t data[64]; +} __packed; + +/* Erase flash */ +#define EC_CMD_FLASH_ERASE 0x13 + +struct ec_params_flash_erase { + uint32_t offset; /* Byte offset to erase */ + uint32_t size; /* Size to erase in bytes */ +} __packed; + +/* + * Get/set flash protection. + * + * If mask!=0, sets/clear the requested bits of flags. Depending on the + * firmware write protect GPIO, not all flags will take effect immediately; + * some flags require a subsequent hard reset to take effect. Check the + * returned flags bits to see what actually happened. + * + * If mask=0, simply returns the current flags state. + */ +#define EC_CMD_FLASH_PROTECT 0x15 +#define EC_VER_FLASH_PROTECT 1 /* Command version 1 */ + +/* Flags for flash protection */ +/* RO flash code protected when the EC boots */ +#define EC_FLASH_PROTECT_RO_AT_BOOT (1 << 0) +/* + * RO flash code protected now. If this bit is set, at-boot status cannot + * be changed. + */ +#define EC_FLASH_PROTECT_RO_NOW (1 << 1) +/* Entire flash code protected now, until reboot. */ +#define EC_FLASH_PROTECT_ALL_NOW (1 << 2) +/* Flash write protect GPIO is asserted now */ +#define EC_FLASH_PROTECT_GPIO_ASSERTED (1 << 3) +/* Error - at least one bank of flash is stuck locked, and cannot be unlocked */ +#define EC_FLASH_PROTECT_ERROR_STUCK (1 << 4) +/* + * Error - flash protection is in inconsistent state. At least one bank of + * flash which should be protected is not protected. Usually fixed by + * re-requesting the desired flags, or by a hard reset if that fails. + */ +#define EC_FLASH_PROTECT_ERROR_INCONSISTENT (1 << 5) +/* Entile flash code protected when the EC boots */ +#define EC_FLASH_PROTECT_ALL_AT_BOOT (1 << 6) + +struct ec_params_flash_protect { + uint32_t mask; /* Bits in flags to apply */ + uint32_t flags; /* New flags to apply */ +} __packed; + +struct ec_response_flash_protect { + /* Current value of flash protect flags */ + uint32_t flags; + /* + * Flags which are valid on this platform. This allows the caller + * to distinguish between flags which aren't set vs. flags which can't + * be set on this platform. + */ + uint32_t valid_flags; + /* Flags which can be changed given the current protection state */ + uint32_t writable_flags; +} __packed; + +/* + * Note: commands 0x14 - 0x19 version 0 were old commands to get/set flash + * write protect. These commands may be reused with version > 0. + */ + +/* Get the region offset/size */ +#define EC_CMD_FLASH_REGION_INFO 0x16 +#define EC_VER_FLASH_REGION_INFO 1 + +enum ec_flash_region { + /* Region which holds read-only EC image */ + EC_FLASH_REGION_RO, + /* Region which holds rewritable EC image */ + EC_FLASH_REGION_RW, + /* + * Region which should be write-protected in the factory (a superset of + * EC_FLASH_REGION_RO) + */ + EC_FLASH_REGION_WP_RO, +}; + +struct ec_params_flash_region_info { + uint32_t region; /* enum ec_flash_region */ +} __packed; + +struct ec_response_flash_region_info { + uint32_t offset; + uint32_t size; +} __packed; + +/* Read/write VbNvContext */ +#define EC_CMD_VBNV_CONTEXT 0x17 +#define EC_VER_VBNV_CONTEXT 1 +#define EC_VBNV_BLOCK_SIZE 16 + +enum ec_vbnvcontext_op { + EC_VBNV_CONTEXT_OP_READ, + EC_VBNV_CONTEXT_OP_WRITE, +}; + +struct ec_params_vbnvcontext { + uint32_t op; + uint8_t block[EC_VBNV_BLOCK_SIZE]; +} __packed; + +struct ec_response_vbnvcontext { + uint8_t block[EC_VBNV_BLOCK_SIZE]; +} __packed; + +/*****************************************************************************/ +/* PWM commands */ + +/* Get fan target RPM */ +#define EC_CMD_PWM_GET_FAN_TARGET_RPM 0x20 + +struct ec_response_pwm_get_fan_rpm { + uint32_t rpm; +} __packed; + +/* Set target fan RPM */ +#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x21 + +struct ec_params_pwm_set_fan_target_rpm { + uint32_t rpm; +} __packed; + +/* Get keyboard backlight */ +#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x22 + +struct ec_response_pwm_get_keyboard_backlight { + uint8_t percent; + uint8_t enabled; +} __packed; + +/* Set keyboard backlight */ +#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x23 + +struct ec_params_pwm_set_keyboard_backlight { + uint8_t percent; +} __packed; + +/* Set target fan PWM duty cycle */ +#define EC_CMD_PWM_SET_FAN_DUTY 0x24 + +struct ec_params_pwm_set_fan_duty { + uint32_t percent; +} __packed; + +/*****************************************************************************/ +/* + * Lightbar commands. This looks worse than it is. Since we only use one HOST + * command to say "talk to the lightbar", we put the "and tell it to do X" part + * into a subcommand. We'll make separate structs for subcommands with + * different input args, so that we know how much to expect. + */ +#define EC_CMD_LIGHTBAR_CMD 0x28 + +struct rgb_s { + uint8_t r, g, b; +}; + +#define LB_BATTERY_LEVELS 4 +/* List of tweakable parameters. NOTE: It's __packed so it can be sent in a + * host command, but the alignment is the same regardless. Keep it that way. + */ +struct lightbar_params { + /* Timing */ + int google_ramp_up; + int google_ramp_down; + int s3s0_ramp_up; + int s0_tick_delay[2]; /* AC=0/1 */ + int s0a_tick_delay[2]; /* AC=0/1 */ + int s0s3_ramp_down; + int s3_sleep_for; + int s3_ramp_up; + int s3_ramp_down; + + /* Oscillation */ + uint8_t new_s0; + uint8_t osc_min[2]; /* AC=0/1 */ + uint8_t osc_max[2]; /* AC=0/1 */ + uint8_t w_ofs[2]; /* AC=0/1 */ + + /* Brightness limits based on the backlight and AC. */ + uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */ + uint8_t bright_bl_on_min[2]; /* AC=0/1 */ + uint8_t bright_bl_on_max[2]; /* AC=0/1 */ + + /* Battery level thresholds */ + uint8_t battery_threshold[LB_BATTERY_LEVELS - 1]; + + /* Map [AC][battery_level] to color index */ + uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */ + uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */ + + /* Color palette */ + struct rgb_s color[8]; /* 0-3 are Google colors */ +} __packed; + +struct ec_params_lightbar { + uint8_t cmd; /* Command (see enum lightbar_command) */ + union { + struct { + /* no args */ + } dump, off, on, init, get_seq, get_params; + + struct num { + uint8_t num; + } brightness, seq, demo; + + struct reg { + uint8_t ctrl, reg, value; + } reg; + + struct rgb { + uint8_t led, red, green, blue; + } rgb; + + struct lightbar_params set_params; + }; +} __packed; + +struct ec_response_lightbar { + union { + struct dump { + struct { + uint8_t reg; + uint8_t ic0; + uint8_t ic1; + } vals[23]; + } dump; + + struct get_seq { + uint8_t num; + } get_seq; + + struct lightbar_params get_params; + + struct { + /* no return params */ + } off, on, init, brightness, seq, reg, rgb, demo, set_params; + }; +} __packed; + +/* Lightbar commands */ +enum lightbar_command { + LIGHTBAR_CMD_DUMP = 0, + LIGHTBAR_CMD_OFF = 1, + LIGHTBAR_CMD_ON = 2, + LIGHTBAR_CMD_INIT = 3, + LIGHTBAR_CMD_BRIGHTNESS = 4, + LIGHTBAR_CMD_SEQ = 5, + LIGHTBAR_CMD_REG = 6, + LIGHTBAR_CMD_RGB = 7, + LIGHTBAR_CMD_GET_SEQ = 8, + LIGHTBAR_CMD_DEMO = 9, + LIGHTBAR_CMD_GET_PARAMS = 10, + LIGHTBAR_CMD_SET_PARAMS = 11, + LIGHTBAR_NUM_CMDS +}; + +/*****************************************************************************/ +/* Verified boot commands */ + +/* + * Note: command code 0x29 version 0 was VBOOT_CMD in Link EVT; it may be + * reused for other purposes with version > 0. + */ + +/* Verified boot hash command */ +#define EC_CMD_VBOOT_HASH 0x2A + +struct ec_params_vboot_hash { + uint8_t cmd; /* enum ec_vboot_hash_cmd */ + uint8_t hash_type; /* enum ec_vboot_hash_type */ + uint8_t nonce_size; /* Nonce size; may be 0 */ + uint8_t reserved0; /* Reserved; set 0 */ + uint32_t offset; /* Offset in flash to hash */ + uint32_t size; /* Number of bytes to hash */ + uint8_t nonce_data[64]; /* Nonce data; ignored if nonce_size=0 */ +} __packed; + +struct ec_response_vboot_hash { + uint8_t status; /* enum ec_vboot_hash_status */ + uint8_t hash_type; /* enum ec_vboot_hash_type */ + uint8_t digest_size; /* Size of hash digest in bytes */ + uint8_t reserved0; /* Ignore; will be 0 */ + uint32_t offset; /* Offset in flash which was hashed */ + uint32_t size; /* Number of bytes hashed */ + uint8_t hash_digest[64]; /* Hash digest data */ +} __packed; + +enum ec_vboot_hash_cmd { + EC_VBOOT_HASH_GET = 0, /* Get current hash status */ + EC_VBOOT_HASH_ABORT = 1, /* Abort calculating current hash */ + EC_VBOOT_HASH_START = 2, /* Start computing a new hash */ + EC_VBOOT_HASH_RECALC = 3, /* Synchronously compute a new hash */ +}; + +enum ec_vboot_hash_type { + EC_VBOOT_HASH_TYPE_SHA256 = 0, /* SHA-256 */ +}; + +enum ec_vboot_hash_status { + EC_VBOOT_HASH_STATUS_NONE = 0, /* No hash (not started, or aborted) */ + EC_VBOOT_HASH_STATUS_DONE = 1, /* Finished computing a hash */ + EC_VBOOT_HASH_STATUS_BUSY = 2, /* Busy computing a hash */ +}; + +/* + * Special values for offset for EC_VBOOT_HASH_START and EC_VBOOT_HASH_RECALC. + * If one of these is specified, the EC will automatically update offset and + * size to the correct values for the specified image (RO or RW). + */ +#define EC_VBOOT_HASH_OFFSET_RO 0xfffffffe +#define EC_VBOOT_HASH_OFFSET_RW 0xfffffffd + +/*****************************************************************************/ +/* USB charging control commands */ + +/* Set USB port charging mode */ +#define EC_CMD_USB_CHARGE_SET_MODE 0x30 + +struct ec_params_usb_charge_set_mode { + uint8_t usb_port_id; + uint8_t mode; +} __packed; + +/*****************************************************************************/ +/* Persistent storage for host */ + +/* Maximum bytes that can be read/written in a single command */ +#define EC_PSTORE_SIZE_MAX 64 + +/* Get persistent storage info */ +#define EC_CMD_PSTORE_INFO 0x40 + +struct ec_response_pstore_info { + /* Persistent storage size, in bytes */ + uint32_t pstore_size; + /* Access size; read/write offset and size must be a multiple of this */ + uint32_t access_size; +} __packed; + +/* + * Read persistent storage + * + * Response is params.size bytes of data. + */ +#define EC_CMD_PSTORE_READ 0x41 + +struct ec_params_pstore_read { + uint32_t offset; /* Byte offset to read */ + uint32_t size; /* Size to read in bytes */ +} __packed; + +/* Write persistent storage */ +#define EC_CMD_PSTORE_WRITE 0x42 + +struct ec_params_pstore_write { + uint32_t offset; /* Byte offset to write */ + uint32_t size; /* Size to write in bytes */ + uint8_t data[EC_PSTORE_SIZE_MAX]; +} __packed; + +/*****************************************************************************/ +/* Real-time clock */ + +/* RTC params and response structures */ +struct ec_params_rtc { + uint32_t time; +} __packed; + +struct ec_response_rtc { + uint32_t time; +} __packed; + +/* These use ec_response_rtc */ +#define EC_CMD_RTC_GET_VALUE 0x44 +#define EC_CMD_RTC_GET_ALARM 0x45 + +/* These all use ec_params_rtc */ +#define EC_CMD_RTC_SET_VALUE 0x46 +#define EC_CMD_RTC_SET_ALARM 0x47 + +/*****************************************************************************/ +/* Port80 log access */ + +/* Get last port80 code from previous boot */ +#define EC_CMD_PORT80_LAST_BOOT 0x48 + +struct ec_response_port80_last_boot { + uint16_t code; +} __packed; + +/*****************************************************************************/ +/* Thermal engine commands */ + +/* Set thershold value */ +#define EC_CMD_THERMAL_SET_THRESHOLD 0x50 + +struct ec_params_thermal_set_threshold { + uint8_t sensor_type; + uint8_t threshold_id; + uint16_t value; +} __packed; + +/* Get threshold value */ +#define EC_CMD_THERMAL_GET_THRESHOLD 0x51 + +struct ec_params_thermal_get_threshold { + uint8_t sensor_type; + uint8_t threshold_id; +} __packed; + +struct ec_response_thermal_get_threshold { + uint16_t value; +} __packed; + +/* Toggle automatic fan control */ +#define EC_CMD_THERMAL_AUTO_FAN_CTRL 0x52 + +/* Get TMP006 calibration data */ +#define EC_CMD_TMP006_GET_CALIBRATION 0x53 + +struct ec_params_tmp006_get_calibration { + uint8_t index; +} __packed; + +struct ec_response_tmp006_get_calibration { + float s0; + float b0; + float b1; + float b2; +} __packed; + +/* Set TMP006 calibration data */ +#define EC_CMD_TMP006_SET_CALIBRATION 0x54 + +struct ec_params_tmp006_set_calibration { + uint8_t index; + uint8_t reserved[3]; /* Reserved; set 0 */ + float s0; + float b0; + float b1; + float b2; +} __packed; + +/*****************************************************************************/ +/* MKBP - Matrix KeyBoard Protocol */ + +/* + * Read key state + * + * Returns raw data for keyboard cols; see ec_response_mkbp_info.cols for + * expected response size. + */ +#define EC_CMD_MKBP_STATE 0x60 + +/* Provide information about the matrix : number of rows and columns */ +#define EC_CMD_MKBP_INFO 0x61 + +struct ec_response_mkbp_info { + uint32_t rows; + uint32_t cols; + uint8_t switches; +} __packed; + +/* Simulate key press */ +#define EC_CMD_MKBP_SIMULATE_KEY 0x62 + +struct ec_params_mkbp_simulate_key { + uint8_t col; + uint8_t row; + uint8_t pressed; +} __packed; + +/* Configure keyboard scanning */ +#define EC_CMD_MKBP_SET_CONFIG 0x64 +#define EC_CMD_MKBP_GET_CONFIG 0x65 + +/* flags */ +enum mkbp_config_flags { + EC_MKBP_FLAGS_ENABLE = 1, /* Enable keyboard scanning */ +}; + +enum mkbp_config_valid { + EC_MKBP_VALID_SCAN_PERIOD = 1 << 0, + EC_MKBP_VALID_POLL_TIMEOUT = 1 << 1, + EC_MKBP_VALID_MIN_POST_SCAN_DELAY = 1 << 3, + EC_MKBP_VALID_OUTPUT_SETTLE = 1 << 4, + EC_MKBP_VALID_DEBOUNCE_DOWN = 1 << 5, + EC_MKBP_VALID_DEBOUNCE_UP = 1 << 6, + EC_MKBP_VALID_FIFO_MAX_DEPTH = 1 << 7, +}; + +/* Configuration for our key scanning algorithm */ +struct ec_mkbp_config { + uint32_t valid_mask; /* valid fields */ + uint8_t flags; /* some flags (enum mkbp_config_flags) */ + uint8_t valid_flags; /* which flags are valid */ + uint16_t scan_period_us; /* period between start of scans */ + /* revert to interrupt mode after no activity for this long */ + uint32_t poll_timeout_us; + /* + * minimum post-scan relax time. Once we finish a scan we check + * the time until we are due to start the next one. If this time is + * shorter this field, we use this instead. + */ + uint16_t min_post_scan_delay_us; + /* delay between setting up output and waiting for it to settle */ + uint16_t output_settle_us; + uint16_t debounce_down_us; /* time for debounce on key down */ + uint16_t debounce_up_us; /* time for debounce on key up */ + /* maximum depth to allow for fifo (0 = no keyscan output) */ + uint8_t fifo_max_depth; +} __packed; + +struct ec_params_mkbp_set_config { + struct ec_mkbp_config config; +} __packed; + +struct ec_response_mkbp_get_config { + struct ec_mkbp_config config; +} __packed; + +/* Run the key scan emulation */ +#define EC_CMD_KEYSCAN_SEQ_CTRL 0x66 + +enum ec_keyscan_seq_cmd { + EC_KEYSCAN_SEQ_STATUS = 0, /* Get status information */ + EC_KEYSCAN_SEQ_CLEAR = 1, /* Clear sequence */ + EC_KEYSCAN_SEQ_ADD = 2, /* Add item to sequence */ + EC_KEYSCAN_SEQ_START = 3, /* Start running sequence */ + EC_KEYSCAN_SEQ_COLLECT = 4, /* Collect sequence summary data */ +}; + +enum ec_collect_flags { + /* + * Indicates this scan was processed by the EC. Due to timing, some + * scans may be skipped. + */ + EC_KEYSCAN_SEQ_FLAG_DONE = 1 << 0, +}; + +struct ec_collect_item { + uint8_t flags; /* some flags (enum ec_collect_flags) */ +}; + +struct ec_params_keyscan_seq_ctrl { + uint8_t cmd; /* Command to send (enum ec_keyscan_seq_cmd) */ + union { + struct { + uint8_t active; /* still active */ + uint8_t num_items; /* number of items */ + /* Current item being presented */ + uint8_t cur_item; + } status; + struct { + /* + * Absolute time for this scan, measured from the + * start of the sequence. + */ + uint32_t time_us; + uint8_t scan[0]; /* keyscan data */ + } add; + struct { + uint8_t start_item; /* First item to return */ + uint8_t num_items; /* Number of items to return */ + } collect; + }; +} __packed; + +struct ec_result_keyscan_seq_ctrl { + union { + struct { + uint8_t num_items; /* Number of items */ + /* Data for each item */ + struct ec_collect_item item[0]; + } collect; + }; +} __packed; + +/*****************************************************************************/ +/* Temperature sensor commands */ + +/* Read temperature sensor info */ +#define EC_CMD_TEMP_SENSOR_GET_INFO 0x70 + +struct ec_params_temp_sensor_get_info { + uint8_t id; +} __packed; + +struct ec_response_temp_sensor_get_info { + char sensor_name[32]; + uint8_t sensor_type; +} __packed; + +/*****************************************************************************/ + +/* + * Note: host commands 0x80 - 0x87 are reserved to avoid conflict with ACPI + * commands accidentally sent to the wrong interface. See the ACPI section + * below. + */ + +/*****************************************************************************/ +/* Host event commands */ + +/* + * Host event mask params and response structures, shared by all of the host + * event commands below. + */ +struct ec_params_host_event_mask { + uint32_t mask; +} __packed; + +struct ec_response_host_event_mask { + uint32_t mask; +} __packed; + +/* These all use ec_response_host_event_mask */ +#define EC_CMD_HOST_EVENT_GET_B 0x87 +#define EC_CMD_HOST_EVENT_GET_SMI_MASK 0x88 +#define EC_CMD_HOST_EVENT_GET_SCI_MASK 0x89 +#define EC_CMD_HOST_EVENT_GET_WAKE_MASK 0x8d + +/* These all use ec_params_host_event_mask */ +#define EC_CMD_HOST_EVENT_SET_SMI_MASK 0x8a +#define EC_CMD_HOST_EVENT_SET_SCI_MASK 0x8b +#define EC_CMD_HOST_EVENT_CLEAR 0x8c +#define EC_CMD_HOST_EVENT_SET_WAKE_MASK 0x8e +#define EC_CMD_HOST_EVENT_CLEAR_B 0x8f + +/*****************************************************************************/ +/* Switch commands */ + +/* Enable/disable LCD backlight */ +#define EC_CMD_SWITCH_ENABLE_BKLIGHT 0x90 + +struct ec_params_switch_enable_backlight { + uint8_t enabled; +} __packed; + +/* Enable/disable WLAN/Bluetooth */ +#define EC_CMD_SWITCH_ENABLE_WIRELESS 0x91 + +struct ec_params_switch_enable_wireless { + uint8_t enabled; +} __packed; + +/*****************************************************************************/ +/* GPIO commands. Only available on EC if write protect has been disabled. */ + +/* Set GPIO output value */ +#define EC_CMD_GPIO_SET 0x92 + +struct ec_params_gpio_set { + char name[32]; + uint8_t val; +} __packed; + +/* Get GPIO value */ +#define EC_CMD_GPIO_GET 0x93 + +struct ec_params_gpio_get { + char name[32]; +} __packed; +struct ec_response_gpio_get { + uint8_t val; +} __packed; + +/*****************************************************************************/ +/* I2C commands. Only available when flash write protect is unlocked. */ + +/* Read I2C bus */ +#define EC_CMD_I2C_READ 0x94 + +struct ec_params_i2c_read { + uint16_t addr; + uint8_t read_size; /* Either 8 or 16. */ + uint8_t port; + uint8_t offset; +} __packed; +struct ec_response_i2c_read { + uint16_t data; +} __packed; + +/* Write I2C bus */ +#define EC_CMD_I2C_WRITE 0x95 + +struct ec_params_i2c_write { + uint16_t data; + uint16_t addr; + uint8_t write_size; /* Either 8 or 16. */ + uint8_t port; + uint8_t offset; +} __packed; + +/*****************************************************************************/ +/* Charge state commands. Only available when flash write protect unlocked. */ + +/* Force charge state machine to stop in idle mode */ +#define EC_CMD_CHARGE_FORCE_IDLE 0x96 + +struct ec_params_force_idle { + uint8_t enabled; +} __packed; + +/*****************************************************************************/ +/* Console commands. Only available when flash write protect is unlocked. */ + +/* Snapshot console output buffer for use by EC_CMD_CONSOLE_READ. */ +#define EC_CMD_CONSOLE_SNAPSHOT 0x97 + +/* + * Read next chunk of data from saved snapshot. + * + * Response is null-terminated string. Empty string, if there is no more + * remaining output. + */ +#define EC_CMD_CONSOLE_READ 0x98 + +/*****************************************************************************/ + +/* + * Cut off battery power output if the battery supports. + * + * For unsupported battery, just don't implement this command and lets EC + * return EC_RES_INVALID_COMMAND. + */ +#define EC_CMD_BATTERY_CUT_OFF 0x99 + +/*****************************************************************************/ +/* Temporary debug commands. TODO: remove this crosbug.com/p/13849 */ + +/* + * Dump charge state machine context. + * + * Response is a binary dump of charge state machine context. + */ +#define EC_CMD_CHARGE_DUMP 0xa0 + +/* + * Set maximum battery charging current. + */ +#define EC_CMD_CHARGE_CURRENT_LIMIT 0xa1 + +struct ec_params_current_limit { + uint32_t limit; +} __packed; + +/*****************************************************************************/ +/* System commands */ + +/* + * TODO: this is a confusing name, since it doesn't necessarily reboot the EC. + * Rename to "set image" or something similar. + */ +#define EC_CMD_REBOOT_EC 0xd2 + +/* Command */ +enum ec_reboot_cmd { + EC_REBOOT_CANCEL = 0, /* Cancel a pending reboot */ + EC_REBOOT_JUMP_RO = 1, /* Jump to RO without rebooting */ + EC_REBOOT_JUMP_RW = 2, /* Jump to RW without rebooting */ + /* (command 3 was jump to RW-B) */ + EC_REBOOT_COLD = 4, /* Cold-reboot */ + EC_REBOOT_DISABLE_JUMP = 5, /* Disable jump until next reboot */ + EC_REBOOT_HIBERNATE = 6 /* Hibernate EC */ +}; + +/* Flags for ec_params_reboot_ec.reboot_flags */ +#define EC_REBOOT_FLAG_RESERVED0 (1 << 0) /* Was recovery request */ +#define EC_REBOOT_FLAG_ON_AP_SHUTDOWN (1 << 1) /* Reboot after AP shutdown */ + +struct ec_params_reboot_ec { + uint8_t cmd; /* enum ec_reboot_cmd */ + uint8_t flags; /* See EC_REBOOT_FLAG_* */ +} __packed; + +/* + * Get information on last EC panic. + * + * Returns variable-length platform-dependent panic information. See panic.h + * for details. + */ +#define EC_CMD_GET_PANIC_INFO 0xd3 + +/*****************************************************************************/ +/* + * ACPI commands + * + * These are valid ONLY on the ACPI command/data port. + */ + +/* + * ACPI Read Embedded Controller + * + * This reads from ACPI memory space on the EC (EC_ACPI_MEM_*). + * + * Use the following sequence: + * + * - Write EC_CMD_ACPI_READ to EC_LPC_ADDR_ACPI_CMD + * - Wait for EC_LPC_CMDR_PENDING bit to clear + * - Write address to EC_LPC_ADDR_ACPI_DATA + * - Wait for EC_LPC_CMDR_DATA bit to set + * - Read value from EC_LPC_ADDR_ACPI_DATA + */ +#define EC_CMD_ACPI_READ 0x80 + +/* + * ACPI Write Embedded Controller + * + * This reads from ACPI memory space on the EC (EC_ACPI_MEM_*). + * + * Use the following sequence: + * + * - Write EC_CMD_ACPI_WRITE to EC_LPC_ADDR_ACPI_CMD + * - Wait for EC_LPC_CMDR_PENDING bit to clear + * - Write address to EC_LPC_ADDR_ACPI_DATA + * - Wait for EC_LPC_CMDR_PENDING bit to clear + * - Write value to EC_LPC_ADDR_ACPI_DATA + */ +#define EC_CMD_ACPI_WRITE 0x81 + +/* + * ACPI Query Embedded Controller + * + * This clears the lowest-order bit in the currently pending host events, and + * sets the result code to the 1-based index of the bit (event 0x00000001 = 1, + * event 0x80000000 = 32), or 0 if no event was pending. + */ +#define EC_CMD_ACPI_QUERY_EVENT 0x84 + +/* Valid addresses in ACPI memory space, for read/write commands */ +/* Memory space version; set to EC_ACPI_MEM_VERSION_CURRENT */ +#define EC_ACPI_MEM_VERSION 0x00 +/* + * Test location; writing value here updates test compliment byte to (0xff - + * value). + */ +#define EC_ACPI_MEM_TEST 0x01 +/* Test compliment; writes here are ignored. */ +#define EC_ACPI_MEM_TEST_COMPLIMENT 0x02 +/* Keyboard backlight brightness percent (0 - 100) */ +#define EC_ACPI_MEM_KEYBOARD_BACKLIGHT 0x03 + +/* Current version of ACPI memory address space */ +#define EC_ACPI_MEM_VERSION_CURRENT 1 + + +/*****************************************************************************/ +/* + * Special commands + * + * These do not follow the normal rules for commands. See each command for + * details. + */ + +/* + * Reboot NOW + * + * This command will work even when the EC LPC interface is busy, because the + * reboot command is processed at interrupt level. Note that when the EC + * reboots, the host will reboot too, so there is no response to this command. + * + * Use EC_CMD_REBOOT_EC to reboot the EC more politely. + */ +#define EC_CMD_REBOOT 0xd1 /* Think "die" */ + +/* + * Resend last response (not supported on LPC). + * + * Returns EC_RES_UNAVAILABLE if there is no response available - for example, + * there was no previous command, or the previous command's response was too + * big to save. + */ +#define EC_CMD_RESEND_RESPONSE 0xdb + +/* + * This header byte on a command indicate version 0. Any header byte less + * than this means that we are talking to an old EC which doesn't support + * versioning. In that case, we assume version 0. + * + * Header bytes greater than this indicate a later version. For example, + * EC_CMD_VERSION0 + 1 means we are using version 1. + * + * The old EC interface must not use commands 0dc or higher. + */ +#define EC_CMD_VERSION0 0xdc + +#endif /* !__ACPI__ */ + +#endif /* __CROS_EC_COMMANDS_H */ -- cgit v1.2.3 From 4ab6174e8cdb007cf500e484bdf454b8d14d524a Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 25 Feb 2013 14:08:37 -0800 Subject: mfd: Add ChromeOS EC implementation This is the base EC implementation, which provides a high level interface to the EC for use by the rest of the kernel. The actual communcations is dealt with by a separate protocol driver which registers itself with this interface. Interrupts are passed on through a notifier. A simple message structure is used to pass messages to the protocol driver. Signed-off-by: Simon Glass Signed-off-by: Che-Liang Chiou Signed-off-by: Jonathan Kliegman Signed-off-by: Luigi Semenzato Signed-off-by: Olof Johansson Signed-off-by: Vincent Palatin Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/mfd/cros-ec.txt | 56 +++++++ drivers/mfd/Kconfig | 8 + drivers/mfd/Makefile | 1 + drivers/mfd/cros_ec.c | 189 ++++++++++++++++++++++ include/linux/mfd/cros_ec.h | 170 +++++++++++++++++++ 5 files changed, 424 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/cros-ec.txt create mode 100644 drivers/mfd/cros_ec.c create mode 100644 include/linux/mfd/cros_ec.h (limited to 'include/linux/mfd') diff --git a/Documentation/devicetree/bindings/mfd/cros-ec.txt b/Documentation/devicetree/bindings/mfd/cros-ec.txt new file mode 100644 index 000000000000..e0e59c58a1f9 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/cros-ec.txt @@ -0,0 +1,56 @@ +ChromeOS Embedded Controller + +Google's ChromeOS EC is a Cortex-M device which talks to the AP and +implements various function such as keyboard and battery charging. + +The EC can be connect through various means (I2C, SPI, LPC) and the +compatible string used depends on the inteface. Each connection method has +its own driver which connects to the top level interface-agnostic EC driver. +Other Linux driver (such as cros-ec-keyb for the matrix keyboard) connect to +the top-level driver. + +Required properties (I2C): +- compatible: "google,cros-ec-i2c" +- reg: I2C slave address + +Required properties (SPI): +- compatible: "google,cros-ec-spi" +- reg: SPI chip select + +Required properties (LPC): +- compatible: "google,cros-ec-lpc" +- reg: List of (IO address, size) pairs defining the interface uses + + +Example for I2C: + +i2c@12CA0000 { + cros-ec@1e { + reg = <0x1e>; + compatible = "google,cros-ec-i2c"; + interrupts = <14 0>; + interrupt-parent = <&wakeup_eint>; + wakeup-source; + }; + + +Example for SPI: + +spi@131b0000 { + ec@0 { + compatible = "google,cros-ec-spi"; + reg = <0x0>; + interrupts = <14 0>; + interrupt-parent = <&wakeup_eint>; + wakeup-source; + spi-max-frequency = <5000000>; + controller-data { + cs-gpio = <&gpf0 3 4 3 0>; + samsung,spi-cs; + samsung,spi-feedback-delay = <2>; + }; + }; +}; + + +Example for LPC is not supplied as it is not yet implemented. diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index c346941a2515..a8bafb560196 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -21,6 +21,14 @@ config MFD_88PM860X select individual components like voltage regulators, RTC and battery-charger under the corresponding menus. +config MFD_CROS_EC + tristate "Support ChromeOS Embedded Controller" + help + If you say Y here you get support for the ChromeOS Embedded + Controller (EC) providing keyboard, battery and power services. + You also ned to enable the driver for the bus you are using. The + protocol for talking to the EC is defined by the bus driver. + config MFD_88PM800 tristate "Support Marvell 88PM800" depends on I2C=y && GENERIC_HARDIRQS diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index b90409c23664..967767d3d759 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_MFD_88PM800) += 88pm800.o 88pm80x.o obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o obj-$(CONFIG_MFD_SM501) += sm501.o obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o +obj-$(CONFIG_MFD_CROS_EC) += cros_ec.o rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o obj-$(CONFIG_MFD_RTSX_PCI) += rtsx_pci.o diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c new file mode 100644 index 000000000000..ac824ccab52a --- /dev/null +++ b/drivers/mfd/cros_ec.c @@ -0,0 +1,189 @@ +/* + * ChromeOS EC multi-function device + * + * Copyright (C) 2012 Google, Inc + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + * The ChromeOS EC multi function device is used to mux all the requests + * to the EC device for its multiple features: keyboard controller, + * battery charging and regulator control, firmware update. + */ + +#include +#include +#include +#include +#include + +int cros_ec_prepare_tx(struct cros_ec_device *ec_dev, + struct cros_ec_msg *msg) +{ + uint8_t *out; + int csum, i; + + BUG_ON(msg->out_len > EC_HOST_PARAM_SIZE); + out = ec_dev->dout; + out[0] = EC_CMD_VERSION0 + msg->version; + out[1] = msg->cmd; + out[2] = msg->out_len; + csum = out[0] + out[1] + out[2]; + for (i = 0; i < msg->out_len; i++) + csum += out[EC_MSG_TX_HEADER_BYTES + i] = msg->out_buf[i]; + out[EC_MSG_TX_HEADER_BYTES + msg->out_len] = (uint8_t)(csum & 0xff); + + return EC_MSG_TX_PROTO_BYTES + msg->out_len; +} + +static int cros_ec_command_sendrecv(struct cros_ec_device *ec_dev, + uint16_t cmd, void *out_buf, int out_len, + void *in_buf, int in_len) +{ + struct cros_ec_msg msg; + + msg.version = cmd >> 8; + msg.cmd = cmd & 0xff; + msg.out_buf = out_buf; + msg.out_len = out_len; + msg.in_buf = in_buf; + msg.in_len = in_len; + + return ec_dev->command_xfer(ec_dev, &msg); +} + +static int cros_ec_command_recv(struct cros_ec_device *ec_dev, + uint16_t cmd, void *buf, int buf_len) +{ + return cros_ec_command_sendrecv(ec_dev, cmd, NULL, 0, buf, buf_len); +} + +static int cros_ec_command_send(struct cros_ec_device *ec_dev, + uint16_t cmd, void *buf, int buf_len) +{ + return cros_ec_command_sendrecv(ec_dev, cmd, buf, buf_len, NULL, 0); +} + +static irqreturn_t ec_irq_thread(int irq, void *data) +{ + struct cros_ec_device *ec_dev = data; + + if (device_may_wakeup(ec_dev->dev)) + pm_wakeup_event(ec_dev->dev, 0); + + blocking_notifier_call_chain(&ec_dev->event_notifier, 1, ec_dev); + + return IRQ_HANDLED; +} + +static struct mfd_cell cros_devs[] = { + { + .name = "cros-ec-keyb", + .id = 1, + .of_compatible = "google,cros-ec-keyb", + }, +}; + +int cros_ec_register(struct cros_ec_device *ec_dev) +{ + struct device *dev = ec_dev->dev; + int err = 0; + + BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier); + + ec_dev->command_send = cros_ec_command_send; + ec_dev->command_recv = cros_ec_command_recv; + ec_dev->command_sendrecv = cros_ec_command_sendrecv; + + if (ec_dev->din_size) { + ec_dev->din = kmalloc(ec_dev->din_size, GFP_KERNEL); + if (!ec_dev->din) { + err = -ENOMEM; + goto fail_din; + } + } + if (ec_dev->dout_size) { + ec_dev->dout = kmalloc(ec_dev->dout_size, GFP_KERNEL); + if (!ec_dev->dout) { + err = -ENOMEM; + goto fail_dout; + } + } + + if (!ec_dev->irq) { + dev_dbg(dev, "no valid IRQ: %d\n", ec_dev->irq); + goto fail_irq; + } + + err = request_threaded_irq(ec_dev->irq, NULL, ec_irq_thread, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "chromeos-ec", ec_dev); + if (err) { + dev_err(dev, "request irq %d: error %d\n", ec_dev->irq, err); + goto fail_irq; + } + + err = mfd_add_devices(dev, 0, cros_devs, + ARRAY_SIZE(cros_devs), + NULL, ec_dev->irq, NULL); + if (err) { + dev_err(dev, "failed to add mfd devices\n"); + goto fail_mfd; + } + + dev_info(dev, "Chrome EC (%s)\n", ec_dev->name); + + return 0; + +fail_mfd: + free_irq(ec_dev->irq, ec_dev); +fail_irq: + kfree(ec_dev->dout); +fail_dout: + kfree(ec_dev->din); +fail_din: + return err; +} + +int cros_ec_remove(struct cros_ec_device *ec_dev) +{ + mfd_remove_devices(ec_dev->dev); + free_irq(ec_dev->irq, ec_dev); + kfree(ec_dev->dout); + kfree(ec_dev->din); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +int cros_ec_suspend(struct cros_ec_device *ec_dev) +{ + struct device *dev = ec_dev->dev; + + if (device_may_wakeup(dev)) + ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq); + + disable_irq(ec_dev->irq); + ec_dev->was_wake_device = ec_dev->wake_enabled; + + return 0; +} + +int cros_ec_resume(struct cros_ec_device *ec_dev) +{ + enable_irq(ec_dev->irq); + + if (ec_dev->wake_enabled) { + disable_irq_wake(ec_dev->irq); + ec_dev->wake_enabled = 0; + } + + return 0; +} +#endif diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h new file mode 100644 index 000000000000..032af7fc5b2e --- /dev/null +++ b/include/linux/mfd/cros_ec.h @@ -0,0 +1,170 @@ +/* + * ChromeOS EC multi-function device + * + * Copyright (C) 2012 Google, Inc + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ + +#ifndef __LINUX_MFD_CROS_EC_H +#define __LINUX_MFD_CROS_EC_H + +#include + +/* + * Command interface between EC and AP, for LPC, I2C and SPI interfaces. + */ +enum { + EC_MSG_TX_HEADER_BYTES = 3, + EC_MSG_TX_TRAILER_BYTES = 1, + EC_MSG_TX_PROTO_BYTES = EC_MSG_TX_HEADER_BYTES + + EC_MSG_TX_TRAILER_BYTES, + EC_MSG_RX_PROTO_BYTES = 3, + + /* Max length of messages */ + EC_MSG_BYTES = EC_HOST_PARAM_SIZE + EC_MSG_TX_PROTO_BYTES, + +}; + +/** + * struct cros_ec_msg - A message sent to the EC, and its reply + * + * @version: Command version number (often 0) + * @cmd: Command to send (EC_CMD_...) + * @out_buf: Outgoing payload (to EC) + * @outlen: Outgoing length + * @in_buf: Incoming payload (from EC) + * @in_len: Incoming length + */ +struct cros_ec_msg { + u8 version; + u8 cmd; + uint8_t *out_buf; + int out_len; + uint8_t *in_buf; + int in_len; +}; + +/** + * struct cros_ec_device - Information about a ChromeOS EC device + * + * @name: Name of this EC interface + * @priv: Private data + * @irq: Interrupt to use + * @din: input buffer (from EC) + * @dout: output buffer (to EC) + * \note + * These two buffers will always be dword-aligned and include enough + * space for up to 7 word-alignment bytes also, so we can ensure that + * the body of the message is always dword-aligned (64-bit). + * + * We use this alignment to keep ARM and x86 happy. Probably word + * alignment would be OK, there might be a small performance advantage + * to using dword. + * @din_size: size of din buffer + * @dout_size: size of dout buffer + * @command_send: send a command + * @command_recv: receive a command + * @ec_name: name of EC device (e.g. 'chromeos-ec') + * @phys_name: name of physical comms layer (e.g. 'i2c-4') + * @parent: pointer to parent device (e.g. i2c or spi device) + * @dev: Device pointer + * dev_lock: Lock to prevent concurrent access + * @wake_enabled: true if this device can wake the system from sleep + * @was_wake_device: true if this device was set to wake the system from + * sleep at the last suspend + * @event_notifier: interrupt event notifier for transport devices + */ +struct cros_ec_device { + const char *name; + void *priv; + int irq; + uint8_t *din; + uint8_t *dout; + int din_size; + int dout_size; + int (*command_send)(struct cros_ec_device *ec, + uint16_t cmd, void *out_buf, int out_len); + int (*command_recv)(struct cros_ec_device *ec, + uint16_t cmd, void *in_buf, int in_len); + int (*command_sendrecv)(struct cros_ec_device *ec, + uint16_t cmd, void *out_buf, int out_len, + void *in_buf, int in_len); + int (*command_xfer)(struct cros_ec_device *ec, + struct cros_ec_msg *msg); + + const char *ec_name; + const char *phys_name; + struct device *parent; + + /* These are --private-- fields - do not assign */ + struct device *dev; + struct mutex dev_lock; + bool wake_enabled; + bool was_wake_device; + struct blocking_notifier_head event_notifier; +}; + +/** + * cros_ec_suspend - Handle a suspend operation for the ChromeOS EC device + * + * This can be called by drivers to handle a suspend event. + * + * ec_dev: Device to suspend + * @return 0 if ok, -ve on error + */ +int cros_ec_suspend(struct cros_ec_device *ec_dev); + +/** + * cros_ec_resume - Handle a resume operation for the ChromeOS EC device + * + * This can be called by drivers to handle a resume event. + * + * @ec_dev: Device to resume + * @return 0 if ok, -ve on error + */ +int cros_ec_resume(struct cros_ec_device *ec_dev); + +/** + * cros_ec_prepare_tx - Prepare an outgoing message in the output buffer + * + * This is intended to be used by all ChromeOS EC drivers, but at present + * only SPI uses it. Once LPC uses the same protocol it can start using it. + * I2C could use it now, with a refactor of the existing code. + * + * @ec_dev: Device to register + * @msg: Message to write + */ +int cros_ec_prepare_tx(struct cros_ec_device *ec_dev, + struct cros_ec_msg *msg); + +/** + * cros_ec_remove - Remove a ChromeOS EC + * + * Call this to deregister a ChromeOS EC. After this you should call + * cros_ec_free(). + * + * @ec_dev: Device to register + * @return 0 if ok, -ve on error + */ +int cros_ec_remove(struct cros_ec_device *ec_dev); + +/** + * cros_ec_register - Register a new ChromeOS EC, using the provided info + * + * Before calling this, allocate a pointer to a new device and then fill + * in all the fields up to the --private-- marker. + * + * @ec_dev: Device to register + * @return 0 if ok, -ve on error + */ +int cros_ec_register(struct cros_ec_device *ec_dev); + +#endif /* __LINUX_MFD_CROS_EC_H */ -- cgit v1.2.3 From 5ab3a89a741fa4c331f42dec17fde59586dc59e6 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Wed, 13 Mar 2013 21:34:20 +0400 Subject: mfd: syscon: Add non-DT support This patch allow using syscon driver from the platform data, i.e. possibility using driver on systems without oftree support. For search syscon device from the client drivers, "syscon_regmap_lookup_by_pdevname" function was added. Signed-off-by: Alexander Shiyan Acked-by: Arnd Bergmann Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 - drivers/mfd/syscon.c | 75 +++++++++++++++++++++++++++------------------- include/linux/mfd/syscon.h | 1 + 3 files changed, 46 insertions(+), 31 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 67e56dcdcbf6..3c50c388c78f 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1100,7 +1100,6 @@ config MFD_STA2X11 config MFD_SYSCON bool "System Controller Register R/W Based on Regmap" - depends on OF select REGMAP_MMIO help Select this option to enable accessing system control registers diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c index 674af1432807..7905d36d0517 100644 --- a/drivers/mfd/syscon.c +++ b/drivers/mfd/syscon.c @@ -29,7 +29,7 @@ struct syscon { struct regmap *regmap; }; -static int syscon_match(struct device *dev, void *data) +static int syscon_match_node(struct device *dev, void *data) { struct device_node *dn = data; @@ -42,7 +42,7 @@ struct regmap *syscon_node_to_regmap(struct device_node *np) struct device *dev; dev = driver_find_device(&syscon_driver.driver, NULL, np, - syscon_match); + syscon_match_node); if (!dev) return ERR_PTR(-EPROBE_DEFER); @@ -68,6 +68,34 @@ struct regmap *syscon_regmap_lookup_by_compatible(const char *s) } EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_compatible); +static int syscon_match_pdevname(struct device *dev, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + const struct platform_device_id *id = platform_get_device_id(pdev); + + if (id) + if (!strcmp(id->name, (const char *)data)) + return 1; + + return !strcmp(dev_name(dev), (const char *)data); +} + +struct regmap *syscon_regmap_lookup_by_pdevname(const char *s) +{ + struct device *dev; + struct syscon *syscon; + + dev = driver_find_device(&syscon_driver.driver, NULL, (void *)s, + syscon_match_pdevname); + if (!dev) + return ERR_PTR(-EPROBE_DEFER); + + syscon = dev_get_drvdata(dev); + + return syscon->regmap; +} +EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_pdevname); + struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np, const char *property) { @@ -99,28 +127,22 @@ static struct regmap_config syscon_regmap_config = { static int syscon_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = dev->of_node; struct syscon *syscon; - struct resource res; - int ret; - - if (!np) - return -ENOENT; + struct resource *res; - syscon = devm_kzalloc(dev, sizeof(struct syscon), - GFP_KERNEL); + syscon = devm_kzalloc(dev, sizeof(*syscon), GFP_KERNEL); if (!syscon) return -ENOMEM; - syscon->base = of_iomap(np, 0); - if (!syscon->base) - return -EADDRNOTAVAIL; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENOENT; - ret = of_address_to_resource(np, 0, &res); - if (ret) - return ret; + syscon->base = devm_ioremap(dev, res->start, resource_size(res)); + if (!syscon->base) + return -ENOMEM; - syscon_regmap_config.max_register = res.end - res.start - 3; + syscon_regmap_config.max_register = res->end - res->start - 3; syscon->regmap = devm_regmap_init_mmio(dev, syscon->base, &syscon_regmap_config); if (IS_ERR(syscon->regmap)) { @@ -130,22 +152,15 @@ static int syscon_probe(struct platform_device *pdev) platform_set_drvdata(pdev, syscon); - dev_info(dev, "syscon regmap start 0x%x end 0x%x registered\n", - res.start, res.end); + dev_info(dev, "regmap 0x%x-0x%x registered\n", res->start, res->end); return 0; } -static int syscon_remove(struct platform_device *pdev) -{ - struct syscon *syscon; - - syscon = platform_get_drvdata(pdev); - iounmap(syscon->base); - platform_set_drvdata(pdev, NULL); - - return 0; -} +static const struct platform_device_id syscon_ids[] = { + { "syscon", }, + { } +}; static struct platform_driver syscon_driver = { .driver = { @@ -154,7 +169,7 @@ static struct platform_driver syscon_driver = { .of_match_table = of_syscon_match, }, .probe = syscon_probe, - .remove = syscon_remove, + .id_table = syscon_ids, }; static int __init syscon_init(void) diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h index 6aeb6b8da64d..5c9ee6ee7960 100644 --- a/include/linux/mfd/syscon.h +++ b/include/linux/mfd/syscon.h @@ -17,6 +17,7 @@ extern struct regmap *syscon_node_to_regmap(struct device_node *np); extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s); +extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s); extern struct regmap *syscon_regmap_lookup_by_phandle( struct device_node *np, const char *property); -- cgit v1.2.3 From 9a47a8dccf8866b497bd80809da1c665e7b07c2c Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 21 Mar 2013 12:27:25 +0100 Subject: mfd: prcmu: pass a base and size with the early initcall This patch will make an early remapping of the PRCMU, to be used when setting up the clocks, that will call down into parts of the PRCMU driver before it is probed. Going forward this will be removed like this: - The mailbox subsystem need to be merged. http://marc.info/?l=linux-kernel&m=136314559201983&w=2 - At this point the PRCMU clock code can be moved over to the ux500 clock driver in drivers/clk/ux500/* and maintained there in a decentralized manner. - This early initcall and PRCMU base parameters become part of the ux500_clk_init() call instead. Cc: Suman Anna Cc: Loic Pallardy Acked-by: Samuel Ortiz Acked-by: Arnd Bergmann Acked-by: Ulf Hansson Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/cpu.c | 15 +++++++++------ drivers/mfd/db8500-prcmu.c | 13 ++++++++++++- include/linux/mfd/db8500-prcmu.h | 4 ++-- include/linux/mfd/dbx500-prcmu.h | 6 +++--- 4 files changed, 26 insertions(+), 12 deletions(-) (limited to 'include/linux/mfd') diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 537870d3fea8..6d3b57d61835 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -8,7 +8,7 @@ #include #include -#include +#include #include #include #include @@ -68,13 +68,16 @@ void __init ux500_init_irq(void) * Init clocks here so that they are available for system timer * initialization. */ - if (cpu_is_u8500_family() || cpu_is_u9540()) - db8500_prcmu_early_init(); - - if (cpu_is_u8500_family() || cpu_is_u9540()) + if (cpu_is_u8500_family()) { + prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1); + u8500_clk_init(); + } else if (cpu_is_u9540()) { + prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1); u8500_clk_init(); - else if (cpu_is_u8540()) + } else if (cpu_is_u8540()) { + prcmu_early_init(U8500_PRCMU_BASE, SZ_8K + SZ_4K - 1); u8540_clk_init(); + } } void __init ux500_init_late(void) diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 21f261bf9e95..0d0cc91f30e8 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2825,8 +2825,19 @@ static void dbx500_fw_version_init(struct platform_device *pdev, } } -void __init db8500_prcmu_early_init(void) +void __init db8500_prcmu_early_init(u32 phy_base, u32 size) { + /* + * This is a temporary remap to bring up the clocks. It is + * subsequently replaces with a real remap. After the merge of + * the mailbox subsystem all of this early code goes away, and the + * clock driver can probe independently. An early initcall will + * still be needed, but it can be diverted into drivers/clk/ux500. + */ + prcmu_base = ioremap(phy_base, size); + if (!prcmu_base) + pr_err("%s: ioremap() of prcmu registers failed!\n", __func__); + spin_lock_init(&mb0_transfer.lock); spin_lock_init(&mb0_transfer.dbb_irqs_lock); mutex_init(&mb0_transfer.ac_wake_lock); diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 77a46ae2fc17..ac943df93489 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -489,7 +489,7 @@ struct prcmu_auto_pm_config { #ifdef CONFIG_MFD_DB8500_PRCMU -void db8500_prcmu_early_init(void); +void db8500_prcmu_early_init(u32 phy_base, u32 size); int prcmu_set_rc_a2p(enum romcode_write); enum romcode_read prcmu_get_rc_p2a(void); enum ap_pwrst prcmu_get_xp70_current_state(void); @@ -553,7 +553,7 @@ void db8500_prcmu_write_masked(unsigned int reg, u32 mask, u32 value); #else /* !CONFIG_MFD_DB8500_PRCMU */ -static inline void db8500_prcmu_early_init(void) {} +static inline void db8500_prcmu_early_init(u32 phy_base, u32 size) {} static inline int prcmu_set_rc_a2p(enum romcode_write code) { diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 3abcca91eecd..8c546cbcb9a6 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -276,9 +276,9 @@ struct prcmu_fw_version { #if defined(CONFIG_UX500_SOC_DB8500) -static inline void __init prcmu_early_init(void) +static inline void prcmu_early_init(u32 phy_base, u32 size) { - return db8500_prcmu_early_init(); + return db8500_prcmu_early_init(phy_base, size); } static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk, @@ -500,7 +500,7 @@ static inline int prcmu_config_a9wdog(u8 num, bool sleep_auto_off) } #else -static inline void __init prcmu_early_init(void) {} +static inline void prcmu_early_init(u32 phy_base, u32 size) {} static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk, bool keep_ap_pll) -- cgit v1.2.3 From 1e22a8c614a5d8c29d0882de21ce327673b71fca Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 19 Mar 2013 15:36:12 +0100 Subject: ARM: ux500: move PM-related PRCMU functions to machine We are trying to decompose and decentralize the code in the DB8500 PRCMU out into subdrivers. The code moved in this patch concerns a group of functions used for decoupling and recoupling the IRQs from the GIC. During sleep and idle the Ux500 system will transfer all IRQ handling to the PRCMU using these functions. Basically we are left with the two alternatives of code placement as: - arch/arm/mach-ux500/pm.c - this because the code is closely related to the GIC, and takes ownership of some of the registers from the PRCMU related to this PM functionality. - drivers/mfd/db8500-prcmu-pm.c - because the code is affecting stuff in the PRCMU register range. But then this code needs to remap and handle GIC registers. This patch implementation is taking the first approach. Currently the cpuidle driver is the only piece of code using this set of functions, but it will later also be used by the suspend/resume code which is currently under review. The header file is moved to: The function prototypes need to be placed in a globally visible header since the CPUidle code is planned to move out to drivers/cpuidle. Acked-by: Samuel Ortiz Acked-by: Rickard Andersson Acked-by: Daniel Lezcano Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/Makefile | 2 +- arch/arm/mach-ux500/cpu.c | 4 + arch/arm/mach-ux500/cpuidle.c | 3 +- arch/arm/mach-ux500/pm.c | 167 +++++++++++++++++++++++++++++ drivers/mfd/db8500-prcmu.c | 114 -------------------- drivers/mfd/dbx500-prcmu-regs.h | 22 ---- include/linux/mfd/db8500-prcmu.h | 6 -- include/linux/mfd/dbx500-prcmu.h | 30 ------ include/linux/platform_data/arm-ux500-pm.h | 21 ++++ 9 files changed, 195 insertions(+), 174 deletions(-) create mode 100644 arch/arm/mach-ux500/pm.c create mode 100644 include/linux/platform_data/arm-ux500-pm.h (limited to 'include/linux/mfd') diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile index f24710dfc395..580a4db9e97d 100644 --- a/arch/arm/mach-ux500/Makefile +++ b/arch/arm/mach-ux500/Makefile @@ -3,7 +3,7 @@ # obj-y := cpu.o devices.o devices-common.o \ - id.o usb.o timer.o + id.o usb.o timer.o pm.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 6f8e152226e3..2c5c48baa3eb 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -20,6 +20,7 @@ #include #include #include +#include #include @@ -68,12 +69,15 @@ void __init ux500_init_irq(void) */ if (cpu_is_u8500_family()) { prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1); + ux500_pm_init(U8500_PRCMU_BASE, SZ_8K - 1); u8500_clk_init(); } else if (cpu_is_u9540()) { prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1); + ux500_pm_init(U8500_PRCMU_BASE, SZ_8K - 1); u8500_clk_init(); } else if (cpu_is_u8540()) { prcmu_early_init(U8500_PRCMU_BASE, SZ_8K + SZ_4K - 1); + ux500_pm_init(U8500_PRCMU_BASE, SZ_8K + SZ_4K - 1); u8540_clk_init(); } } diff --git a/arch/arm/mach-ux500/cpuidle.c b/arch/arm/mach-ux500/cpuidle.c index ce9149302cc3..1e5bb6640f56 100644 --- a/arch/arm/mach-ux500/cpuidle.c +++ b/arch/arm/mach-ux500/cpuidle.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -130,7 +131,7 @@ int __init ux500_idle_init(void) int ret, cpu; struct cpuidle_device *device; - /* Configure wake up reasons */ + /* Configure wake up reasons */ prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) | PRCMU_WAKEUP(ABB)); diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c new file mode 100644 index 000000000000..6949a1332f8f --- /dev/null +++ b/arch/arm/mach-ux500/pm.c @@ -0,0 +1,167 @@ +/* + * Copyright (C) ST-Ericsson SA 2010-2013 + * Author: Rickard Andersson for + * ST-Ericsson. + * Author: Daniel Lezcano for Linaro. + * License terms: GNU General Public License (GPL) version 2 + * + */ + +#include +#include +#include +#include +#include + +#include + +/* ARM WFI Standby signal register */ +#define PRCM_ARM_WFI_STANDBY (prcmu_base + 0x130) +#define PRCM_ARM_WFI_STANDBY_WFI0 0x08 +#define PRCM_ARM_WFI_STANDBY_WFI1 0x10 +#define PRCM_IOCR (prcmu_base + 0x310) +#define PRCM_IOCR_IOFORCE 0x1 + +/* Dual A9 core interrupt management unit registers */ +#define PRCM_A9_MASK_REQ (prcmu_base + 0x328) +#define PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ 0x1 + +#define PRCM_A9_MASK_ACK (prcmu_base + 0x32c) +#define PRCM_ARMITMSK31TO0 (prcmu_base + 0x11c) +#define PRCM_ARMITMSK63TO32 (prcmu_base + 0x120) +#define PRCM_ARMITMSK95TO64 (prcmu_base + 0x124) +#define PRCM_ARMITMSK127TO96 (prcmu_base + 0x128) +#define PRCM_POWER_STATE_VAL (prcmu_base + 0x25C) +#define PRCM_ARMITVAL31TO0 (prcmu_base + 0x260) +#define PRCM_ARMITVAL63TO32 (prcmu_base + 0x264) +#define PRCM_ARMITVAL95TO64 (prcmu_base + 0x268) +#define PRCM_ARMITVAL127TO96 (prcmu_base + 0x26C) + +static void __iomem *prcmu_base; + +/* This function decouple the gic from the prcmu */ +int prcmu_gic_decouple(void) +{ + u32 val = readl(PRCM_A9_MASK_REQ); + + /* Set bit 0 register value to 1 */ + writel(val | PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ, + PRCM_A9_MASK_REQ); + + /* Make sure the register is updated */ + readl(PRCM_A9_MASK_REQ); + + /* Wait a few cycles for the gic mask completion */ + udelay(1); + + return 0; +} + +/* This function recouple the gic with the prcmu */ +int prcmu_gic_recouple(void) +{ + u32 val = readl(PRCM_A9_MASK_REQ); + + /* Set bit 0 register value to 0 */ + writel(val & ~PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ, PRCM_A9_MASK_REQ); + + return 0; +} + +#define PRCMU_GIC_NUMBER_REGS 5 + +/* + * This function checks if there are pending irq on the gic. It only + * makes sense if the gic has been decoupled before with the + * db8500_prcmu_gic_decouple function. Disabling an interrupt only + * disables the forwarding of the interrupt to any CPU interface. It + * does not prevent the interrupt from changing state, for example + * becoming pending, or active and pending if it is already + * active. Hence, we have to check the interrupt is pending *and* is + * active. + */ +bool prcmu_gic_pending_irq(void) +{ + u32 pr; /* Pending register */ + u32 er; /* Enable register */ + void __iomem *dist_base = __io_address(U8500_GIC_DIST_BASE); + int i; + + /* 5 registers. STI & PPI not skipped */ + for (i = 0; i < PRCMU_GIC_NUMBER_REGS; i++) { + + pr = readl_relaxed(dist_base + GIC_DIST_PENDING_SET + i * 4); + er = readl_relaxed(dist_base + GIC_DIST_ENABLE_SET + i * 4); + + if (pr & er) + return true; /* There is a pending interrupt */ + } + + return false; +} + +/* + * This function checks if there are pending interrupt on the + * prcmu which has been delegated to monitor the irqs with the + * db8500_prcmu_copy_gic_settings function. + */ +bool prcmu_pending_irq(void) +{ + u32 it, im; + int i; + + for (i = 0; i < PRCMU_GIC_NUMBER_REGS - 1; i++) { + it = readl(PRCM_ARMITVAL31TO0 + i * 4); + im = readl(PRCM_ARMITMSK31TO0 + i * 4); + if (it & im) + return true; /* There is a pending interrupt */ + } + + return false; +} + +/* + * This function checks if the specified cpu is in in WFI. It's usage + * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple + * function. Of course passing smp_processor_id() to this function will + * always return false... + */ +bool prcmu_is_cpu_in_wfi(int cpu) +{ + return readl(PRCM_ARM_WFI_STANDBY) & cpu ? PRCM_ARM_WFI_STANDBY_WFI1 : + PRCM_ARM_WFI_STANDBY_WFI0; +} + +/* + * This function copies the gic SPI settings to the prcmu in order to + * monitor them and abort/finish the retention/off sequence or state. + */ +int prcmu_copy_gic_settings(void) +{ + u32 er; /* Enable register */ + void __iomem *dist_base = __io_address(U8500_GIC_DIST_BASE); + int i; + + /* We skip the STI and PPI */ + for (i = 0; i < PRCMU_GIC_NUMBER_REGS - 1; i++) { + er = readl_relaxed(dist_base + + GIC_DIST_ENABLE_SET + (i + 1) * 4); + writel(er, PRCM_ARMITMSK31TO0 + i * 4); + } + + return 0; +} + +void __init ux500_pm_init(u32 phy_base, u32 size) +{ + prcmu_base = ioremap(phy_base, size); + if (!prcmu_base) { + pr_err("could not remap PRCMU for PM functions\n"); + return; + } + /* + * On watchdog reboot the GIC is in some cases decoupled. + * This will make sure that the GIC is correctly configured. + */ + prcmu_gic_recouple(); +} diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 75a60c4721ff..16e5696024a5 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include @@ -794,119 +793,6 @@ u8 db8500_prcmu_get_power_state_result(void) return readb(tcdm_base + PRCM_ACK_MB0_AP_PWRSTTR_STATUS); } -/* This function decouple the gic from the prcmu */ -int db8500_prcmu_gic_decouple(void) -{ - u32 val = readl(PRCM_A9_MASK_REQ); - - /* Set bit 0 register value to 1 */ - writel(val | PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ, - PRCM_A9_MASK_REQ); - - /* Make sure the register is updated */ - readl(PRCM_A9_MASK_REQ); - - /* Wait a few cycles for the gic mask completion */ - udelay(1); - - return 0; -} - -/* This function recouple the gic with the prcmu */ -int db8500_prcmu_gic_recouple(void) -{ - u32 val = readl(PRCM_A9_MASK_REQ); - - /* Set bit 0 register value to 0 */ - writel(val & ~PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ, PRCM_A9_MASK_REQ); - - return 0; -} - -#define PRCMU_GIC_NUMBER_REGS 5 - -/* - * This function checks if there are pending irq on the gic. It only - * makes sense if the gic has been decoupled before with the - * db8500_prcmu_gic_decouple function. Disabling an interrupt only - * disables the forwarding of the interrupt to any CPU interface. It - * does not prevent the interrupt from changing state, for example - * becoming pending, or active and pending if it is already - * active. Hence, we have to check the interrupt is pending *and* is - * active. - */ -bool db8500_prcmu_gic_pending_irq(void) -{ - u32 pr; /* Pending register */ - u32 er; /* Enable register */ - void __iomem *dist_base = __io_address(U8500_GIC_DIST_BASE); - int i; - - /* 5 registers. STI & PPI not skipped */ - for (i = 0; i < PRCMU_GIC_NUMBER_REGS; i++) { - - pr = readl_relaxed(dist_base + GIC_DIST_PENDING_SET + i * 4); - er = readl_relaxed(dist_base + GIC_DIST_ENABLE_SET + i * 4); - - if (pr & er) - return true; /* There is a pending interrupt */ - } - - return false; -} - -/* - * This function checks if there are pending interrupt on the - * prcmu which has been delegated to monitor the irqs with the - * db8500_prcmu_copy_gic_settings function. - */ -bool db8500_prcmu_pending_irq(void) -{ - u32 it, im; - int i; - - for (i = 0; i < PRCMU_GIC_NUMBER_REGS - 1; i++) { - it = readl(PRCM_ARMITVAL31TO0 + i * 4); - im = readl(PRCM_ARMITMSK31TO0 + i * 4); - if (it & im) - return true; /* There is a pending interrupt */ - } - - return false; -} - -/* - * This function checks if the specified cpu is in in WFI. It's usage - * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple - * function. Of course passing smp_processor_id() to this function will - * always return false... - */ -bool db8500_prcmu_is_cpu_in_wfi(int cpu) -{ - return readl(PRCM_ARM_WFI_STANDBY) & cpu ? PRCM_ARM_WFI_STANDBY_WFI1 : - PRCM_ARM_WFI_STANDBY_WFI0; -} - -/* - * This function copies the gic SPI settings to the prcmu in order to - * monitor them and abort/finish the retention/off sequence or state. - */ -int db8500_prcmu_copy_gic_settings(void) -{ - u32 er; /* Enable register */ - void __iomem *dist_base = __io_address(U8500_GIC_DIST_BASE); - int i; - - /* We skip the STI and PPI */ - for (i = 0; i < PRCMU_GIC_NUMBER_REGS - 1; i++) { - er = readl_relaxed(dist_base + - GIC_DIST_ENABLE_SET + (i + 1) * 4); - writel(er, PRCM_ARMITMSK31TO0 + i * 4); - } - - return 0; -} - /* This function should only be called while mb0_transfer.lock is held. */ static void config_wakeups(void) { diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h index 439254d23d56..d14836ed2114 100644 --- a/drivers/mfd/dbx500-prcmu-regs.h +++ b/drivers/mfd/dbx500-prcmu-regs.h @@ -74,33 +74,11 @@ #define PRCM_A9PL_FORCE_CLKEN_PRCM_A9PL_FORCE_CLKEN BIT(0) #define PRCM_A9PL_FORCE_CLKEN_PRCM_A9AXI_FORCE_CLKEN BIT(1) -/* ARM WFI Standby signal register */ -#define PRCM_ARM_WFI_STANDBY (prcmu_base + 0x130) -#define PRCM_ARM_WFI_STANDBY_WFI0 0x08 -#define PRCM_ARM_WFI_STANDBY_WFI1 0x10 -#define PRCM_IOCR (prcmu_base + 0x310) -#define PRCM_IOCR_IOFORCE 0x1 - /* CPU mailbox registers */ #define PRCM_MBOX_CPU_VAL (prcmu_base + 0x0fc) #define PRCM_MBOX_CPU_SET (prcmu_base + 0x100) #define PRCM_MBOX_CPU_CLR (prcmu_base + 0x104) -/* Dual A9 core interrupt management unit registers */ -#define PRCM_A9_MASK_REQ (prcmu_base + 0x328) -#define PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ 0x1 - -#define PRCM_A9_MASK_ACK (prcmu_base + 0x32c) -#define PRCM_ARMITMSK31TO0 (prcmu_base + 0x11c) -#define PRCM_ARMITMSK63TO32 (prcmu_base + 0x120) -#define PRCM_ARMITMSK95TO64 (prcmu_base + 0x124) -#define PRCM_ARMITMSK127TO96 (prcmu_base + 0x128) -#define PRCM_POWER_STATE_VAL (prcmu_base + 0x25C) -#define PRCM_ARMITVAL31TO0 (prcmu_base + 0x260) -#define PRCM_ARMITVAL63TO32 (prcmu_base + 0x264) -#define PRCM_ARMITVAL95TO64 (prcmu_base + 0x268) -#define PRCM_ARMITVAL127TO96 (prcmu_base + 0x26C) - #define PRCM_HOSTACCESS_REQ (prcmu_base + 0x334) #define PRCM_HOSTACCESS_REQ_HOSTACCESS_REQ 0x1 #define PRCM_HOSTACCESS_REQ_WAKE_REQ BIT(16) diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index ac943df93489..0bd69446bb05 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -522,12 +522,6 @@ int db8500_prcmu_load_a9wdog(u8 id, u32 val); void db8500_prcmu_system_reset(u16 reset_code); int db8500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, bool keep_ap_pll); u8 db8500_prcmu_get_power_state_result(void); -int db8500_prcmu_gic_decouple(void); -int db8500_prcmu_gic_recouple(void); -int db8500_prcmu_copy_gic_settings(void); -bool db8500_prcmu_gic_pending_irq(void); -bool db8500_prcmu_pending_irq(void); -bool db8500_prcmu_is_cpu_in_wfi(int cpu); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); int db8500_prcmu_request_clock(u8 clock, bool enable); diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 8c546cbcb9a6..fc43cecc9449 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -293,36 +293,6 @@ static inline u8 prcmu_get_power_state_result(void) return db8500_prcmu_get_power_state_result(); } -static inline int prcmu_gic_decouple(void) -{ - return db8500_prcmu_gic_decouple(); -} - -static inline int prcmu_gic_recouple(void) -{ - return db8500_prcmu_gic_recouple(); -} - -static inline bool prcmu_gic_pending_irq(void) -{ - return db8500_prcmu_gic_pending_irq(); -} - -static inline bool prcmu_is_cpu_in_wfi(int cpu) -{ - return db8500_prcmu_is_cpu_in_wfi(cpu); -} - -static inline int prcmu_copy_gic_settings(void) -{ - return db8500_prcmu_copy_gic_settings(); -} - -static inline bool prcmu_pending_irq(void) -{ - return db8500_prcmu_pending_irq(); -} - static inline int prcmu_set_epod(u16 epod_id, u8 epod_state) { return db8500_prcmu_set_epod(epod_id, epod_state); diff --git a/include/linux/platform_data/arm-ux500-pm.h b/include/linux/platform_data/arm-ux500-pm.h new file mode 100644 index 000000000000..8dff64b29ec0 --- /dev/null +++ b/include/linux/platform_data/arm-ux500-pm.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) ST-Ericsson SA 2010-2013 + * Author: Rickard Andersson for + * ST-Ericsson. + * Author: Daniel Lezcano for Linaro. + * License terms: GNU General Public License (GPL) version 2 + * + */ + +#ifndef ARM_UX500_PM_H +#define ARM_UX500_PM_H + +int prcmu_gic_decouple(void); +int prcmu_gic_recouple(void); +bool prcmu_gic_pending_irq(void); +bool prcmu_pending_irq(void); +bool prcmu_is_cpu_in_wfi(int cpu); +int prcmu_copy_gic_settings(void); +void ux500_pm_init(u32 phy_base, u32 size); + +#endif /* ARM_UX500_PM_H */ -- cgit v1.2.3 From 55b175d7e6327939df82592ef279c534da323354 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 21 Mar 2013 22:51:07 +0100 Subject: ARM: ux500: split out prcmu initialization This untangles the final bits of the prcmu code from the platform code: * The IRQ_PRCMU_* definitions move from irqs-db8500.h into prcmu.c because they are only of local significance. * u8500_thsens_device goes into the prcmu, because it uses a PRCMU IRQ that the platform does not see. * IRQ_DB8500_AB8500 and IRQ_PRCMU_BASE go into the platform data because the PRCMU does not see it. Acked-by: Samuel Ortiz Signed-off-by: Arnd Bergmann [Fixed a oneliner bug] Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/board-mop500.c | 58 ---------- arch/arm/mach-ux500/devices-db8500.c | 2 + arch/arm/mach-ux500/include/mach/irqs-db8500.h | 25 ----- drivers/mfd/db8500-prcmu.c | 140 ++++++++++++++++++++----- include/linux/mfd/dbx500-prcmu.h | 2 + 5 files changed, 115 insertions(+), 112 deletions(-) (limited to 'include/linux/mfd') diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index b03457881c4b..fe3d72cc341c 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -206,63 +206,6 @@ struct ab8500_platform_data ab8500_platdata = { .codec = &ab8500_codec_pdata, }; -/* - * Thermal Sensor - */ - -static struct resource db8500_thsens_resources[] = { - { - .name = "IRQ_HOTMON_LOW", - .start = IRQ_PRCMU_HOTMON_LOW, - .end = IRQ_PRCMU_HOTMON_LOW, - .flags = IORESOURCE_IRQ, - }, - { - .name = "IRQ_HOTMON_HIGH", - .start = IRQ_PRCMU_HOTMON_HIGH, - .end = IRQ_PRCMU_HOTMON_HIGH, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct db8500_thsens_platform_data db8500_thsens_data = { - .trip_points[0] = { - .temp = 70000, - .type = THERMAL_TRIP_ACTIVE, - .cdev_name = { - [0] = "thermal-cpufreq-0", - }, - }, - .trip_points[1] = { - .temp = 75000, - .type = THERMAL_TRIP_ACTIVE, - .cdev_name = { - [0] = "thermal-cpufreq-0", - }, - }, - .trip_points[2] = { - .temp = 80000, - .type = THERMAL_TRIP_ACTIVE, - .cdev_name = { - [0] = "thermal-cpufreq-0", - }, - }, - .trip_points[3] = { - .temp = 85000, - .type = THERMAL_TRIP_CRITICAL, - }, - .num_trips = 4, -}; - -static struct platform_device u8500_thsens_device = { - .name = "db8500-thermal", - .resource = db8500_thsens_resources, - .num_resources = ARRAY_SIZE(db8500_thsens_resources), - .dev = { - .platform_data = &db8500_thsens_data, - }, -}; - static struct platform_device u8500_cpufreq_cooling_device = { .name = "db8500-cpufreq-cooling", }; @@ -622,7 +565,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = { &snowball_key_dev, &snowball_sbnet_dev, &snowball_gpio_en_3v3_regulator_dev, - &u8500_thsens_device, &u8500_cpufreq_cooling_device, }; diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c index f3d9419f75d3..df4d7de0fd9f 100644 --- a/arch/arm/mach-ux500/devices-db8500.c +++ b/arch/arm/mach-ux500/devices-db8500.c @@ -199,6 +199,8 @@ struct platform_device u8500_ske_keypad_device = { struct prcmu_pdata db8500_prcmu_pdata = { .ab_platdata = &ab8500_platdata, + .ab_irq = IRQ_DB8500_AB8500, + .irq_base = IRQ_PRCMU_BASE, .version_offset = DB8500_PRCMU_FW_VERSION_OFFSET, .legacy_offset = DB8500_PRCMU_LEGACY_OFFSET, }; diff --git a/arch/arm/mach-ux500/include/mach/irqs-db8500.h b/arch/arm/mach-ux500/include/mach/irqs-db8500.h index 68bc14974608..f3a9d5947ef3 100644 --- a/arch/arm/mach-ux500/include/mach/irqs-db8500.h +++ b/arch/arm/mach-ux500/include/mach/irqs-db8500.h @@ -109,31 +109,6 @@ /* Virtual interrupts corresponding to the PRCMU wakeups. */ #define IRQ_PRCMU_BASE IRQ_SOC_START -#define NUM_PRCMU_WAKEUPS (IRQ_PRCMU_END - IRQ_PRCMU_BASE) - -#define IRQ_PRCMU_RTC (IRQ_PRCMU_BASE) -#define IRQ_PRCMU_RTT0 (IRQ_PRCMU_BASE + 1) -#define IRQ_PRCMU_RTT1 (IRQ_PRCMU_BASE + 2) -#define IRQ_PRCMU_HSI0 (IRQ_PRCMU_BASE + 3) -#define IRQ_PRCMU_HSI1 (IRQ_PRCMU_BASE + 4) -#define IRQ_PRCMU_CA_WAKE (IRQ_PRCMU_BASE + 5) -#define IRQ_PRCMU_USB (IRQ_PRCMU_BASE + 6) -#define IRQ_PRCMU_ABB (IRQ_PRCMU_BASE + 7) -#define IRQ_PRCMU_ABB_FIFO (IRQ_PRCMU_BASE + 8) -#define IRQ_PRCMU_ARM (IRQ_PRCMU_BASE + 9) -#define IRQ_PRCMU_MODEM_SW_RESET_REQ (IRQ_PRCMU_BASE + 10) -#define IRQ_PRCMU_GPIO0 (IRQ_PRCMU_BASE + 11) -#define IRQ_PRCMU_GPIO1 (IRQ_PRCMU_BASE + 12) -#define IRQ_PRCMU_GPIO2 (IRQ_PRCMU_BASE + 13) -#define IRQ_PRCMU_GPIO3 (IRQ_PRCMU_BASE + 14) -#define IRQ_PRCMU_GPIO4 (IRQ_PRCMU_BASE + 15) -#define IRQ_PRCMU_GPIO5 (IRQ_PRCMU_BASE + 16) -#define IRQ_PRCMU_GPIO6 (IRQ_PRCMU_BASE + 17) -#define IRQ_PRCMU_GPIO7 (IRQ_PRCMU_BASE + 18) -#define IRQ_PRCMU_GPIO8 (IRQ_PRCMU_BASE + 19) -#define IRQ_PRCMU_CA_SLEEP (IRQ_PRCMU_BASE + 20) -#define IRQ_PRCMU_HOTMON_LOW (IRQ_PRCMU_BASE + 21) -#define IRQ_PRCMU_HOTMON_HIGH (IRQ_PRCMU_BASE + 22) #define IRQ_PRCMU_END (IRQ_PRCMU_BASE + 23) /* diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 0f99b01afa88..21434beb420a 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -33,7 +33,7 @@ #include #include #include -#include +#include #include "dbx500-prcmu-regs.h" /* Index of different voltages to be used when accessing AVSData */ @@ -273,8 +273,34 @@ static struct irq_domain *db8500_irq_domain; * the bits in the bit field are not. (The bits also have a tendency to move * around, to further complicate matters.) */ -#define IRQ_INDEX(_name) ((IRQ_PRCMU_##_name) - IRQ_PRCMU_BASE) +#define IRQ_INDEX(_name) ((IRQ_PRCMU_##_name)) #define IRQ_ENTRY(_name)[IRQ_INDEX(_name)] = (WAKEUP_BIT_##_name) + +#define IRQ_PRCMU_RTC 0 +#define IRQ_PRCMU_RTT0 1 +#define IRQ_PRCMU_RTT1 2 +#define IRQ_PRCMU_HSI0 3 +#define IRQ_PRCMU_HSI1 4 +#define IRQ_PRCMU_CA_WAKE 5 +#define IRQ_PRCMU_USB 6 +#define IRQ_PRCMU_ABB 7 +#define IRQ_PRCMU_ABB_FIFO 8 +#define IRQ_PRCMU_ARM 9 +#define IRQ_PRCMU_MODEM_SW_RESET_REQ 10 +#define IRQ_PRCMU_GPIO0 11 +#define IRQ_PRCMU_GPIO1 12 +#define IRQ_PRCMU_GPIO2 13 +#define IRQ_PRCMU_GPIO3 14 +#define IRQ_PRCMU_GPIO4 15 +#define IRQ_PRCMU_GPIO5 16 +#define IRQ_PRCMU_GPIO6 17 +#define IRQ_PRCMU_GPIO7 18 +#define IRQ_PRCMU_GPIO8 19 +#define IRQ_PRCMU_CA_SLEEP 20 +#define IRQ_PRCMU_HOTMON_LOW 21 +#define IRQ_PRCMU_HOTMON_HIGH 22 +#define NUM_PRCMU_WAKEUPS 23 + static u32 prcmu_irq_bit[NUM_PRCMU_WAKEUPS] = { IRQ_ENTRY(RTC), IRQ_ENTRY(RTT0), @@ -2649,14 +2675,13 @@ static struct irq_domain_ops db8500_irq_ops = { .xlate = irq_domain_xlate_twocell, }; -static int db8500_irq_init(struct device_node *np) +static int db8500_irq_init(struct device_node *np, int irq_base) { - int irq_base = 0; int i; /* In the device tree case, just take some IRQs */ - if (!np) - irq_base = IRQ_PRCMU_BASE; + if (np) + irq_base = 0; db8500_irq_domain = irq_domain_add_simple( np, NUM_PRCMU_WAKEUPS, irq_base, @@ -2988,18 +3013,57 @@ static struct regulator_init_data db8500_regulators[DB8500_NUM_REGULATORS] = { }, }; -static struct resource ab8500_resources[] = { - [0] = { - .start = IRQ_DB8500_AB8500, - .end = IRQ_DB8500_AB8500, - .flags = IORESOURCE_IRQ - } -}; - static struct ux500_wdt_data db8500_wdt_pdata = { .timeout = 600, /* 10 minutes */ .has_28_bits_resolution = true, }; +/* + * Thermal Sensor + */ + +static struct resource db8500_thsens_resources[] = { + { + .name = "IRQ_HOTMON_LOW", + .start = IRQ_PRCMU_HOTMON_LOW, + .end = IRQ_PRCMU_HOTMON_LOW, + .flags = IORESOURCE_IRQ, + }, + { + .name = "IRQ_HOTMON_HIGH", + .start = IRQ_PRCMU_HOTMON_HIGH, + .end = IRQ_PRCMU_HOTMON_HIGH, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct db8500_thsens_platform_data db8500_thsens_data = { + .trip_points[0] = { + .temp = 70000, + .type = THERMAL_TRIP_ACTIVE, + .cdev_name = { + [0] = "thermal-cpufreq-0", + }, + }, + .trip_points[1] = { + .temp = 75000, + .type = THERMAL_TRIP_ACTIVE, + .cdev_name = { + [0] = "thermal-cpufreq-0", + }, + }, + .trip_points[2] = { + .temp = 80000, + .type = THERMAL_TRIP_ACTIVE, + .cdev_name = { + [0] = "thermal-cpufreq-0", + }, + }, + .trip_points[3] = { + .temp = 85000, + .type = THERMAL_TRIP_CRITICAL, + }, + .num_trips = 4, +}; static struct mfd_cell db8500_prcmu_devs[] = { { @@ -3021,11 +3085,10 @@ static struct mfd_cell db8500_prcmu_devs[] = { .id = -1, }, { - .name = "ab8500-core", - .of_compatible = "stericsson,ab8500", - .num_resources = ARRAY_SIZE(ab8500_resources), - .resources = ab8500_resources, - .id = AB8500_VERSION_AB8500, + .name = "db8500-thermal", + .num_resources = ARRAY_SIZE(db8500_thsens_resources), + .resources = db8500_thsens_resources, + .platform_data = &db8500_thsens_data, }, }; @@ -3037,6 +3100,24 @@ static void db8500_prcmu_update_cpufreq(void) } } +static int db8500_prcmu_register_ab8500(struct device *parent, + struct ab8500_platform_data *pdata, + int irq) +{ + struct resource ab8500_resource = DEFINE_RES_IRQ(irq); + struct mfd_cell ab8500_cell = { + .name = "ab8500-core", + .of_compatible = "stericsson,ab8500", + .id = AB8500_VERSION_AB8500, + .platform_data = pdata, + .pdata_size = sizeof(struct ab8500_platform_data), + .resources = &ab8500_resource, + .num_resources = 1, + }; + + return mfd_add_devices(parent, 0, &ab8500_cell, 1, NULL, 0, NULL); +} + /** * prcmu_fw_init - arch init call for the Linux PRCMU fw init logic * @@ -3045,7 +3126,7 @@ static int db8500_prcmu_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct prcmu_pdata *pdata = dev_get_platdata(&pdev->dev); - int irq = 0, err = 0, i; + int irq = 0, err = 0; struct resource *res; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu"); @@ -3086,26 +3167,27 @@ static int db8500_prcmu_probe(struct platform_device *pdev) goto no_irq_return; } - db8500_irq_init(np); - - for (i = 0; i < ARRAY_SIZE(db8500_prcmu_devs); i++) { - if (!strcmp(db8500_prcmu_devs[i].name, "ab8500-core")) { - db8500_prcmu_devs[i].platform_data = pdata->ab_platdata; - db8500_prcmu_devs[i].pdata_size = sizeof(struct ab8500_platform_data); - } - } + db8500_irq_init(np, pdata->irq_base); prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); db8500_prcmu_update_cpufreq(); err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs, - ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, NULL); + ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, db8500_irq_domain); if (err) { pr_err("prcmu: Failed to add subdevices\n"); return err; } + err = db8500_prcmu_register_ab8500(&pdev->dev, pdata->ab_platdata, + pdata->ab_irq); + if (err) { + mfd_remove_devices(&pdev->dev); + pr_err("prcmu: Failed to add ab8500 subdevice\n"); + goto no_irq_return; + } + pr_info("DB8500 PRCMU initialized\n"); no_irq_return: diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index fc43cecc9449..689e6a0d9c99 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -237,6 +237,8 @@ struct prcmu_pdata bool enable_set_ddr_opp; bool enable_ape_opp_100_voltage; struct ab8500_platform_data *ab_platdata; + int ab_irq; + int irq_base; u32 version_offset; u32 legacy_offset; u32 adt_offset; -- cgit v1.2.3 From f8a0941f1bbdbaa68441142675986501b48da8f5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 22 Mar 2013 12:59:33 +0100 Subject: mfd: arizona: Basic support for edge triggered IRQs Allow the user to configure edge triggered IRQs, though we do not yet fully handle new interrupts occurring while an interrupt is being handled. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- arch/arm/mach-s3c64xx/mach-crag6410-module.c | 4 ++-- drivers/mfd/arizona-irq.c | 12 +++++++----- include/linux/mfd/arizona/pdata.h | 3 ++- 3 files changed, 11 insertions(+), 8 deletions(-) (limited to 'include/linux/mfd') diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c index bf3d1c09b085..40b0e75b1ecc 100644 --- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c +++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c @@ -208,7 +208,7 @@ static const struct i2c_board_info wm1277_devs[] = { static struct arizona_pdata wm5102_reva_pdata = { .ldoena = S3C64XX_GPN(7), .gpio_base = CODEC_GPIO_BASE, - .irq_active_high = true, + .irq_flags = IRQF_TRIGGER_HIGH, .micd_pol_gpio = CODEC_GPIO_BASE + 4, .gpio_defaults = { [2] = 0x10000, /* AIF3TXLRCLK */ @@ -237,7 +237,7 @@ static struct spi_board_info wm5102_reva_spi_devs[] = { static struct arizona_pdata wm5102_pdata = { .ldoena = S3C64XX_GPN(7), .gpio_base = CODEC_GPIO_BASE, - .irq_active_high = true, + .irq_flags = IRQF_TRIGGER_HIGH, .micd_pol_gpio = CODEC_GPIO_BASE + 2, .gpio_defaults = { [2] = 0x10000, /* AIF3TXLRCLK */ diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index 0aa39e2eb008..aa25468d24aa 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -195,7 +195,11 @@ int arizona_irq_init(struct arizona *arizona) /* Disable all wake sources by default */ regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0); - if (arizona->pdata.irq_active_high) { + if (!arizona->pdata.irq_flags) + arizona->pdata.irq_flags = IRQF_TRIGGER_LOW; + + if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH | + IRQF_TRIGGER_RISING)) { ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1, ARIZONA_IRQ_POL, 0); if (ret != 0) { @@ -203,12 +207,10 @@ int arizona_irq_init(struct arizona *arizona) ret); goto err; } - - flags |= IRQF_TRIGGER_HIGH; - } else { - flags |= IRQF_TRIGGER_LOW; } + flags |= arizona->pdata.irq_flags; + /* Allocate a virtual IRQ domain to distribute to the regmap domains */ arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops, arizona); diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 455c51d22d6b..84fefede3a23 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -99,7 +99,8 @@ struct arizona_pdata { /** If a direct 32kHz clock is provided on an MCLK specify it here */ int clk32k_src; - bool irq_active_high; /** IRQ polarity */ + /** Mode for primary IRQ (defaults to active low) */ + unsigned int irq_flags; /* Base GPIO */ int gpio_base; -- cgit v1.2.3 From 3092f8050eccce8463afe771f0910634a433e24b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 24 Mar 2013 23:05:58 +0000 Subject: mfd: arizona: Allow GPIO to be specified for IRQ line If a GPIO is specified for the chip IRQ line then request it. This improves support for systems that do not put pins into input mode when used as interrupts. Also use this GPIO when the primary IRQ is in edge triggered mode to detect if we have handled pending interrupts in order to improve robustness. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-irq.c | 66 +++++++++++++++++++++++++++++++-------- include/linux/mfd/arizona/pdata.h | 3 ++ 2 files changed, 56 insertions(+), 13 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index aa25468d24aa..f761cc119c01 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -94,6 +94,7 @@ static irqreturn_t arizona_ctrlif_err(int irq, void *data) static irqreturn_t arizona_irq_thread(int irq, void *data) { struct arizona *arizona = data; + bool poll; unsigned int val; int ret; @@ -103,20 +104,39 @@ static irqreturn_t arizona_irq_thread(int irq, void *data) return IRQ_NONE; } - /* Always handle the AoD domain */ - handle_nested_irq(irq_find_mapping(arizona->virq, 0)); + do { + poll = false; + + /* Always handle the AoD domain */ + handle_nested_irq(irq_find_mapping(arizona->virq, 0)); + + /* + * Check if one of the main interrupts is asserted and only + * check that domain if it is. + */ + ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS, + &val); + if (ret == 0 && val & ARIZONA_IRQ1_STS) { + handle_nested_irq(irq_find_mapping(arizona->virq, 1)); + } else if (ret != 0) { + dev_err(arizona->dev, + "Failed to read main IRQ status: %d\n", ret); + } - /* - * Check if one of the main interrupts is asserted and only - * check that domain if it is. - */ - ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS, &val); - if (ret == 0 && val & ARIZONA_IRQ1_STS) { - handle_nested_irq(irq_find_mapping(arizona->virq, 1)); - } else if (ret != 0) { - dev_err(arizona->dev, "Failed to read main IRQ status: %d\n", - ret); - } + /* + * Poll the IRQ pin status to see if we're really done + * if the interrupt controller can't do it for us. + */ + if (!arizona->pdata.irq_gpio) { + break; + } else if (arizona->pdata.irq_flags & IRQF_TRIGGER_RISING && + gpio_get_value_cansleep(arizona->pdata.irq_gpio)) { + poll = true; + } else if (arizona->pdata.irq_flags & IRQF_TRIGGER_FALLING && + !gpio_get_value_cansleep(arizona->pdata.irq_gpio)) { + poll = true; + } + } while (poll); pm_runtime_mark_last_busy(arizona->dev); pm_runtime_put_autosuspend(arizona->dev); @@ -262,6 +282,26 @@ int arizona_irq_init(struct arizona *arizona) } } + /* Used to emulate edge trigger and to work around broken pinmux */ + if (arizona->pdata.irq_gpio) { + if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) { + dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n", + arizona->irq, arizona->pdata.irq_gpio, + gpio_to_irq(arizona->pdata.irq_gpio)); + arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio); + } + + ret = devm_gpio_request_one(arizona->dev, + arizona->pdata.irq_gpio, + GPIOF_IN, "arizona IRQ"); + if (ret != 0) { + dev_err(arizona->dev, + "Failed to request IRQ GPIO %d:: %d\n", + arizona->pdata.irq_gpio, ret); + arizona->pdata.irq_gpio = 0; + } + } + ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread, flags, "arizona", arizona); diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 84fefede3a23..8755dd05ab78 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -163,6 +163,9 @@ struct arizona_pdata { /** Haptic actuator type */ unsigned int hap_act; + + /** GPIO for primary IRQ (used for edge triggered emulation) */ + int irq_gpio; }; #endif -- cgit v1.2.3 From 544c7aadd7d4309ed01fcd787d393db67eb7eaea Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 29 Jan 2013 18:44:41 +0800 Subject: mfd: arizona: Support configuring MICBIASes into bypass mode Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 12 +++++++++++- include/linux/mfd/arizona/pdata.h | 1 + 2 files changed, 12 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 0962c558dc02..dd679e8601da 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -514,10 +514,16 @@ int arizona_dev_init(struct arizona *arizona) } for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) { - if (!arizona->pdata.micbias[i].mV) + if (!arizona->pdata.micbias[i].mV && + !arizona->pdata.micbias[i].bypass) continue; + /* Apply default for bypass mode */ + if (!arizona->pdata.micbias[i].mV) + arizona->pdata.micbias[i].mV = 2800; + val = (arizona->pdata.micbias[i].mV - 1500) / 100; + val <<= ARIZONA_MICB1_LVL_SHIFT; if (arizona->pdata.micbias[i].ext_cap) @@ -529,10 +535,14 @@ int arizona_dev_init(struct arizona *arizona) if (arizona->pdata.micbias[i].fast_start) val |= ARIZONA_MICB1_RATE; + if (arizona->pdata.micbias[i].bypass) + val |= ARIZONA_MICB1_BYPASS; + regmap_update_bits(arizona->regmap, ARIZONA_MIC_BIAS_CTRL_1 + i, ARIZONA_MICB1_LVL_MASK | ARIZONA_MICB1_DISCH | + ARIZONA_MICB1_BYPASS | ARIZONA_MICB1_RATE, val); } diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 8755dd05ab78..554d903cdf41 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -78,6 +78,7 @@ struct arizona_micbias { unsigned int ext_cap:1; /** External capacitor fitted */ unsigned int discharge:1; /** Actively discharge */ unsigned int fast_start:1; /** Enable aggressive startup ramp rate */ + unsigned int bypass:1; /** Use bypass mode */ }; struct arizona_micd_config { -- cgit v1.2.3 From 654003e98213991e4d534487907baad2afd9828d Mon Sep 17 00:00:00 2001 From: Ian Lartey Date: Fri, 22 Mar 2013 14:55:12 +0000 Subject: mfd: palmas: is_palmas_charger needed by multiple drivers is_palmas_charger checks for the presence of charging functionality in the device Signed-off-by: Graeme Gregory Signed-off-by: Ian Lartey Acked-by: Laxman Dewangani Signed-off-by: Samuel Ortiz --- include/linux/mfd/palmas.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 3bbda22721ea..4a066d0caf44 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -1,9 +1,10 @@ /* * TI Palmas * - * Copyright 2011 Texas Instruments Inc. + * Copyright 2011-2013 Texas Instruments Inc. * * Author: Graeme Gregory + * Author: Ian Lartey * * 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 @@ -22,6 +23,15 @@ #define PALMAS_NUM_CLIENTS 3 +/* The ID_REVISION NUMBERS */ +#define PALMAS_CHIP_OLD_ID 0x0000 +#define PALMAS_CHIP_ID 0xC035 +#define PALMAS_CHIP_CHARGER_ID 0xC036 + +#define is_palmas(a) (((a) == PALMAS_CHIP_OLD_ID) || \ + ((a) == PALMAS_CHIP_ID)) +#define is_palmas_charger(a) ((a) == PALMAS_CHIP_CHARGER_ID) + struct palmas_pmic; struct palmas_gpadc; struct palmas_resource; -- cgit v1.2.3 From 751391c74f3d41a8d5c5dd5100385f723660c368 Mon Sep 17 00:00:00 2001 From: Rhyland Klein Date: Tue, 12 Mar 2013 18:08:06 -0400 Subject: mfd: tps65090: Fix enum in header file The enum is missing the definition for the first bit, which makes all the rest off by one. Add definition for the TPS65090_IRQ_INTERRUPT bit which at 0. Signed-off-by: Rhyland Klein Signed-off-by: Samuel Ortiz --- include/linux/mfd/tps65090.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/tps65090.h b/include/linux/mfd/tps65090.h index 6694cf43e8b8..9ce231fda74f 100644 --- a/include/linux/mfd/tps65090.h +++ b/include/linux/mfd/tps65090.h @@ -27,6 +27,7 @@ /* TPS65090 IRQs */ enum { + TPS65090_IRQ_INTERRUPT, TPS65090_IRQ_VAC_STATUS_CHANGE, TPS65090_IRQ_VSYS_STATUS_CHANGE, TPS65090_IRQ_BAT_STATUS_CHANGE, -- cgit v1.2.3 From 57e1b48805a92304e4f50ebf5b885e627731a444 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 6 Mar 2013 14:28:13 +0800 Subject: mfd: arizona: Define additional FLL control registers Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/arizona/registers.h | 40 +++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index 340355136069..a61ce90ecd3f 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -85,12 +85,14 @@ #define ARIZONA_FLL1_CONTROL_6 0x176 #define ARIZONA_FLL1_LOOP_FILTER_TEST_1 0x177 #define ARIZONA_FLL1_NCO_TEST_0 0x178 +#define ARIZONA_FLL1_CONTROL_7 0x179 #define ARIZONA_FLL1_SYNCHRONISER_1 0x181 #define ARIZONA_FLL1_SYNCHRONISER_2 0x182 #define ARIZONA_FLL1_SYNCHRONISER_3 0x183 #define ARIZONA_FLL1_SYNCHRONISER_4 0x184 #define ARIZONA_FLL1_SYNCHRONISER_5 0x185 #define ARIZONA_FLL1_SYNCHRONISER_6 0x186 +#define ARIZONA_FLL1_SYNCHRONISER_7 0x187 #define ARIZONA_FLL1_SPREAD_SPECTRUM 0x189 #define ARIZONA_FLL1_GPIO_CLOCK 0x18A #define ARIZONA_FLL2_CONTROL_1 0x191 @@ -101,12 +103,14 @@ #define ARIZONA_FLL2_CONTROL_6 0x196 #define ARIZONA_FLL2_LOOP_FILTER_TEST_1 0x197 #define ARIZONA_FLL2_NCO_TEST_0 0x198 +#define ARIZONA_FLL2_CONTROL_7 0x199 #define ARIZONA_FLL2_SYNCHRONISER_1 0x1A1 #define ARIZONA_FLL2_SYNCHRONISER_2 0x1A2 #define ARIZONA_FLL2_SYNCHRONISER_3 0x1A3 #define ARIZONA_FLL2_SYNCHRONISER_4 0x1A4 #define ARIZONA_FLL2_SYNCHRONISER_5 0x1A5 #define ARIZONA_FLL2_SYNCHRONISER_6 0x1A6 +#define ARIZONA_FLL2_SYNCHRONISER_7 0x1A7 #define ARIZONA_FLL2_SPREAD_SPECTRUM 0x1A9 #define ARIZONA_FLL2_GPIO_CLOCK 0x1AA #define ARIZONA_MIC_CHARGE_PUMP_1 0x200 @@ -1677,6 +1681,13 @@ #define ARIZONA_FLL1_FRC_INTEG_VAL_SHIFT 0 /* FLL1_FRC_INTEG_VAL - [11:0] */ #define ARIZONA_FLL1_FRC_INTEG_VAL_WIDTH 12 /* FLL1_FRC_INTEG_VAL - [11:0] */ +/* + * R377 (0x179) - FLL1 Control 7 + */ +#define ARIZONA_FLL1_GAIN_MASK 0x003c /* FLL1_GAIN */ +#define ARIZONA_FLL1_GAIN_SHIFT 2 /* FLL1_GAIN */ +#define ARIZONA_FLL1_GAIN_WIDTH 4 /* FLL1_GAIN */ + /* * R385 (0x181) - FLL1 Synchroniser 1 */ @@ -1723,6 +1734,17 @@ #define ARIZONA_FLL1_CLK_SYNC_SRC_SHIFT 0 /* FLL1_CLK_SYNC_SRC - [3:0] */ #define ARIZONA_FLL1_CLK_SYNC_SRC_WIDTH 4 /* FLL1_CLK_SYNC_SRC - [3:0] */ +/* + * R391 (0x187) - FLL1 Synchroniser 7 + */ +#define ARIZONA_FLL1_SYNC_GAIN_MASK 0x003c /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_GAIN_SHIFT 2 /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_GAIN_WIDTH 4 /* FLL1_SYNC_GAIN */ +#define ARIZONA_FLL1_SYNC_BW 0x0001 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_MASK 0x0001 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_SHIFT 0 /* FLL1_SYNC_BW */ +#define ARIZONA_FLL1_SYNC_BW_WIDTH 1 /* FLL1_SYNC_BW */ + /* * R393 (0x189) - FLL1 Spread Spectrum */ @@ -1815,6 +1837,13 @@ #define ARIZONA_FLL2_FRC_INTEG_VAL_SHIFT 0 /* FLL2_FRC_INTEG_VAL - [11:0] */ #define ARIZONA_FLL2_FRC_INTEG_VAL_WIDTH 12 /* FLL2_FRC_INTEG_VAL - [11:0] */ +/* + * R409 (0x199) - FLL2 Control 7 + */ +#define ARIZONA_FLL2_GAIN_MASK 0x003c /* FLL2_GAIN */ +#define ARIZONA_FLL2_GAIN_SHIFT 2 /* FLL2_GAIN */ +#define ARIZONA_FLL2_GAIN_WIDTH 4 /* FLL2_GAIN */ + /* * R417 (0x1A1) - FLL2 Synchroniser 1 */ @@ -1861,6 +1890,17 @@ #define ARIZONA_FLL2_CLK_SYNC_SRC_SHIFT 0 /* FLL2_CLK_SYNC_SRC - [3:0] */ #define ARIZONA_FLL2_CLK_SYNC_SRC_WIDTH 4 /* FLL2_CLK_SYNC_SRC - [3:0] */ +/* + * R423 (0x1A7) - FLL2 Synchroniser 7 + */ +#define ARIZONA_FLL2_SYNC_GAIN_MASK 0x003c /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_GAIN_SHIFT 2 /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_GAIN_WIDTH 4 /* FLL2_SYNC_GAIN */ +#define ARIZONA_FLL2_SYNC_BW_MASK 0x0001 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_MASK 0x0001 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_SHIFT 0 /* FLL2_SYNC_BW */ +#define ARIZONA_FLL2_SYNC_BW_WIDTH 1 /* FLL2_SYNC_BW */ + /* * R425 (0x1A9) - FLL2 Spread Spectrum */ -- cgit v1.2.3 From 5fb1c2dd8f9e9f3fd4ecbaefc75b83ab0ec40cfa Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 25 Mar 2013 17:56:23 +0100 Subject: mfd: syscon: Add missing struct device_node declaration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit syscon.h header uses struct device_node in functions' declarations without declaring it. This causes compilation warnings like: include/linux/mfd/syscon.h:20: warning: ‘struct device_node’ declared inside parameter list include/linux/mfd/syscon.h:20: warning: its scope is only this definition or declaration, which is probably not what you want Fix it by adding a forward declaration of struct device_node. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Acked-by: Dong Aisheng Signed-off-by: Samuel Ortiz --- include/linux/mfd/syscon.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h index 5c9ee6ee7960..b473577f36db 100644 --- a/include/linux/mfd/syscon.h +++ b/include/linux/mfd/syscon.h @@ -15,6 +15,8 @@ #ifndef __LINUX_MFD_SYSCON_H__ #define __LINUX_MFD_SYSCON_H__ +struct device_node; + extern struct regmap *syscon_node_to_regmap(struct device_node *np); extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s); extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s); -- cgit v1.2.3 From 230f13a5035fd4725a6623af83953623fd51173a Mon Sep 17 00:00:00 2001 From: Jean-Nicolas Graux Date: Tue, 9 Apr 2013 10:35:19 +0200 Subject: mfd: support stmpe1801 18 bits enhanced port expander Provides support for 1801 variant of stmpe gpio port expanders. This chip has 18 gpios configurable as GPI, GPO, keypad matrix, special key or dedicated key function. Note that special/dedicated key function is not supported yet. Signed-off-by: Jean-Nicolas Graux Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 + drivers/mfd/stmpe-i2c.c | 1 + drivers/mfd/stmpe.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++- drivers/mfd/stmpe.h | 49 ++++++++++++++++++++++++ include/linux/mfd/stmpe.h | 3 ++ 5 files changed, 150 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 533ce2c9435b..9d64e321e8c0 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -393,6 +393,7 @@ config MFD_STMPE STMPE811: GPIO, Touchscreen STMPE1601: GPIO, Keypad + STMPE1801: GPIO, Keypad STMPE2401: GPIO, Keypad STMPE2403: GPIO, Keypad diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c index fd5fcb630685..0da02e11d58e 100644 --- a/drivers/mfd/stmpe-i2c.c +++ b/drivers/mfd/stmpe-i2c.c @@ -75,6 +75,7 @@ static const struct i2c_device_id stmpe_i2c_id[] = { { "stmpe801", STMPE801 }, { "stmpe811", STMPE811 }, { "stmpe1601", STMPE1601 }, + { "stmpe1801", STMPE1801 }, { "stmpe2401", STMPE2401 }, { "stmpe2403", STMPE2403 }, { } diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index bc8587777993..bbccd514d3ec 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "stmpe.h" static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks) @@ -642,6 +643,88 @@ static struct stmpe_variant_info stmpe1601 = { .enable_autosleep = stmpe1601_autosleep, }; +/* + * STMPE1801 + */ +static const u8 stmpe1801_regs[] = { + [STMPE_IDX_CHIP_ID] = STMPE1801_REG_CHIP_ID, + [STMPE_IDX_ICR_LSB] = STMPE1801_REG_INT_CTRL_LOW, + [STMPE_IDX_IER_LSB] = STMPE1801_REG_INT_EN_MASK_LOW, + [STMPE_IDX_ISR_LSB] = STMPE1801_REG_INT_STA_LOW, + [STMPE_IDX_GPMR_LSB] = STMPE1801_REG_GPIO_MP_LOW, + [STMPE_IDX_GPSR_LSB] = STMPE1801_REG_GPIO_SET_LOW, + [STMPE_IDX_GPCR_LSB] = STMPE1801_REG_GPIO_CLR_LOW, + [STMPE_IDX_GPDR_LSB] = STMPE1801_REG_GPIO_SET_DIR_LOW, + [STMPE_IDX_GPRER_LSB] = STMPE1801_REG_GPIO_RE_LOW, + [STMPE_IDX_GPFER_LSB] = STMPE1801_REG_GPIO_FE_LOW, + [STMPE_IDX_IEGPIOR_LSB] = STMPE1801_REG_INT_EN_GPIO_MASK_LOW, + [STMPE_IDX_ISGPIOR_LSB] = STMPE1801_REG_INT_STA_GPIO_LOW, +}; + +static struct stmpe_variant_block stmpe1801_blocks[] = { + { + .cell = &stmpe_gpio_cell, + .irq = STMPE1801_IRQ_GPIOC, + .block = STMPE_BLOCK_GPIO, + }, + { + .cell = &stmpe_keypad_cell, + .irq = STMPE1801_IRQ_KEYPAD, + .block = STMPE_BLOCK_KEYPAD, + }, +}; + +static int stmpe1801_enable(struct stmpe *stmpe, unsigned int blocks, + bool enable) +{ + unsigned int mask = 0; + if (blocks & STMPE_BLOCK_GPIO) + mask |= STMPE1801_MSK_INT_EN_GPIO; + + if (blocks & STMPE_BLOCK_KEYPAD) + mask |= STMPE1801_MSK_INT_EN_KPC; + + return __stmpe_set_bits(stmpe, STMPE1801_REG_INT_EN_MASK_LOW, mask, + enable ? mask : 0); +} + +static int stmpe1801_reset(struct stmpe *stmpe) +{ + unsigned long timeout; + int ret = 0; + + ret = __stmpe_set_bits(stmpe, STMPE1801_REG_SYS_CTRL, + STMPE1801_MSK_SYS_CTRL_RESET, STMPE1801_MSK_SYS_CTRL_RESET); + if (ret < 0) + return ret; + + timeout = jiffies + msecs_to_jiffies(100); + while (time_before(jiffies, timeout)) { + ret = __stmpe_reg_read(stmpe, STMPE1801_REG_SYS_CTRL); + if (ret < 0) + return ret; + if (!(ret & STMPE1801_MSK_SYS_CTRL_RESET)) + return 0; + usleep_range(100, 200); + }; + return -EIO; +} + +static struct stmpe_variant_info stmpe1801 = { + .name = "stmpe1801", + .id_val = STMPE1801_ID, + .id_mask = 0xfff0, + .num_gpios = 18, + .af_bits = 0, + .regs = stmpe1801_regs, + .blocks = stmpe1801_blocks, + .num_blocks = ARRAY_SIZE(stmpe1801_blocks), + .num_irqs = STMPE1801_NR_INTERNAL_IRQS, + .enable = stmpe1801_enable, + /* stmpe1801 do not have any gpio alternate function */ + .get_altfunc = NULL, +}; + /* * STMPE24XX */ @@ -740,6 +823,7 @@ static struct stmpe_variant_info *stmpe_variant_info[STMPE_NBR_PARTS] = { [STMPE801] = &stmpe801, [STMPE811] = &stmpe811, [STMPE1601] = &stmpe1601, + [STMPE1801] = &stmpe1801, [STMPE2401] = &stmpe2401, [STMPE2403] = &stmpe2403, }; @@ -759,7 +843,7 @@ static irqreturn_t stmpe_irq(int irq, void *data) struct stmpe *stmpe = data; struct stmpe_variant_info *variant = stmpe->variant; int num = DIV_ROUND_UP(variant->num_irqs, 8); - u8 israddr = stmpe->regs[STMPE_IDX_ISR_MSB]; + u8 israddr; u8 isr[num]; int ret; int i; @@ -771,6 +855,11 @@ static irqreturn_t stmpe_irq(int irq, void *data) return IRQ_HANDLED; } + if (variant->id_val == STMPE1801_ID) + israddr = stmpe->regs[STMPE_IDX_ISR_LSB]; + else + israddr = stmpe->regs[STMPE_IDX_ISR_MSB]; + ret = stmpe_block_read(stmpe, israddr, num, isr); if (ret < 0) return IRQ_NONE; @@ -938,6 +1027,12 @@ static int stmpe_chip_init(struct stmpe *stmpe) if (ret) return ret; + if (id == STMPE1801_ID) { + ret = stmpe1801_reset(stmpe); + if (ret < 0) + return ret; + } + if (stmpe->irq >= 0) { if (id == STMPE801_ID) icr = STMPE801_REG_SYS_CTRL_INT_EN; diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h index 7b8e13f5b764..ff2b09ba8797 100644 --- a/drivers/mfd/stmpe.h +++ b/drivers/mfd/stmpe.h @@ -198,6 +198,55 @@ int stmpe_remove(struct stmpe *stmpe); #define STMPE1601_AUTOSLEEP_TIMEOUT_MASK (0x7) #define STPME1601_AUTOSLEEP_ENABLE (1 << 3) +/* + * STMPE1801 + */ +#define STMPE1801_ID 0xc110 +#define STMPE1801_NR_INTERNAL_IRQS 5 +#define STMPE1801_IRQ_KEYPAD_COMBI 4 +#define STMPE1801_IRQ_GPIOC 3 +#define STMPE1801_IRQ_KEYPAD_OVER 2 +#define STMPE1801_IRQ_KEYPAD 1 +#define STMPE1801_IRQ_WAKEUP 0 + +#define STMPE1801_REG_CHIP_ID 0x00 +#define STMPE1801_REG_SYS_CTRL 0x02 +#define STMPE1801_REG_INT_CTRL_LOW 0x04 +#define STMPE1801_REG_INT_EN_MASK_LOW 0x06 +#define STMPE1801_REG_INT_STA_LOW 0x08 +#define STMPE1801_REG_INT_EN_GPIO_MASK_LOW 0x0A +#define STMPE1801_REG_INT_EN_GPIO_MASK_MID 0x0B +#define STMPE1801_REG_INT_EN_GPIO_MASK_HIGH 0x0C +#define STMPE1801_REG_INT_STA_GPIO_LOW 0x0D +#define STMPE1801_REG_INT_STA_GPIO_MID 0x0E +#define STMPE1801_REG_INT_STA_GPIO_HIGH 0x0F +#define STMPE1801_REG_GPIO_SET_LOW 0x10 +#define STMPE1801_REG_GPIO_SET_MID 0x11 +#define STMPE1801_REG_GPIO_SET_HIGH 0x12 +#define STMPE1801_REG_GPIO_CLR_LOW 0x13 +#define STMPE1801_REG_GPIO_CLR_MID 0x14 +#define STMPE1801_REG_GPIO_CLR_HIGH 0x15 +#define STMPE1801_REG_GPIO_MP_LOW 0x16 +#define STMPE1801_REG_GPIO_MP_MID 0x17 +#define STMPE1801_REG_GPIO_MP_HIGH 0x18 +#define STMPE1801_REG_GPIO_SET_DIR_LOW 0x19 +#define STMPE1801_REG_GPIO_SET_DIR_MID 0x1A +#define STMPE1801_REG_GPIO_SET_DIR_HIGH 0x1B +#define STMPE1801_REG_GPIO_RE_LOW 0x1C +#define STMPE1801_REG_GPIO_RE_MID 0x1D +#define STMPE1801_REG_GPIO_RE_HIGH 0x1E +#define STMPE1801_REG_GPIO_FE_LOW 0x1F +#define STMPE1801_REG_GPIO_FE_MID 0x20 +#define STMPE1801_REG_GPIO_FE_HIGH 0x21 +#define STMPE1801_REG_GPIO_PULL_UP_LOW 0x22 +#define STMPE1801_REG_GPIO_PULL_UP_MID 0x23 +#define STMPE1801_REG_GPIO_PULL_UP_HIGH 0x24 + +#define STMPE1801_MSK_SYS_CTRL_RESET (1 << 7) + +#define STMPE1801_MSK_INT_EN_KPC (1 << 1) +#define STMPE1801_MSK_INT_EN_GPIO (1 << 3) + /* * STMPE24xx */ diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h index 383ac1512a39..48395a69a7e9 100644 --- a/include/linux/mfd/stmpe.h +++ b/include/linux/mfd/stmpe.h @@ -26,6 +26,7 @@ enum stmpe_partnum { STMPE801, STMPE811, STMPE1601, + STMPE1801, STMPE2401, STMPE2403, STMPE_NBR_PARTS @@ -39,6 +40,7 @@ enum { STMPE_IDX_CHIP_ID, STMPE_IDX_ICR_LSB, STMPE_IDX_IER_LSB, + STMPE_IDX_ISR_LSB, STMPE_IDX_ISR_MSB, STMPE_IDX_GPMR_LSB, STMPE_IDX_GPSR_LSB, @@ -49,6 +51,7 @@ enum { STMPE_IDX_GPFER_LSB, STMPE_IDX_GPAFR_U_MSB, STMPE_IDX_IEGPIOR_LSB, + STMPE_IDX_ISGPIOR_LSB, STMPE_IDX_ISGPIOR_MSB, STMPE_IDX_MAX, }; -- cgit v1.2.3 From 6f780965aaf3354a3a6165d9018393a4a381b81d Mon Sep 17 00:00:00 2001 From: Hongbo Zhang Date: Wed, 3 Apr 2013 20:18:08 +0800 Subject: ab8500_btemp: Make ab8500_btemp_get* interfaces public Make ab8500_btemp_get_temp interface public, export it and also export the ab8500_btemp_get, ab8500_btemp_get_batctrl_temp interfaces, so that the ab8500 hwmon driver can use them. Signed-off-by: Hongbo Zhang Signed-off-by: Anton Vorontsov --- drivers/power/ab8500_btemp.c | 5 ++++- include/linux/mfd/abx500/ab8500-bm.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c index a9486f1a1b5b..d412d34bf3df 100644 --- a/drivers/power/ab8500_btemp.c +++ b/drivers/power/ab8500_btemp.c @@ -131,6 +131,7 @@ struct ab8500_btemp *ab8500_btemp_get(void) return btemp; } +EXPORT_SYMBOL(ab8500_btemp_get); /** * ab8500_btemp_batctrl_volt_to_res() - convert batctrl voltage to resistance @@ -815,7 +816,7 @@ static void ab8500_btemp_periodic(struct ab8500_btemp *di, * * Returns battery temperature */ -static int ab8500_btemp_get_temp(struct ab8500_btemp *di) +int ab8500_btemp_get_temp(struct ab8500_btemp *di) { int temp = 0; @@ -851,6 +852,7 @@ static int ab8500_btemp_get_temp(struct ab8500_btemp *di) } return temp; } +EXPORT_SYMBOL(ab8500_btemp_get_temp); /** * ab8500_btemp_get_batctrl_temp() - get the temperature @@ -862,6 +864,7 @@ int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp) { return btemp->bat_temp * 1000; } +EXPORT_SYMBOL(ab8500_btemp_get_batctrl_temp); /** * ab8500_btemp_get_property() - get the btemp properties diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index f5214dc651f9..cc892a8d8d6e 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -465,6 +465,7 @@ void ab8500_fg_reinit(void); void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA); struct ab8500_btemp *ab8500_btemp_get(void); int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp); +int ab8500_btemp_get_temp(struct ab8500_btemp *btemp); struct ab8500_fg *ab8500_fg_get(void); int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev); int ab8500_fg_inst_curr_start(struct ab8500_fg *di); -- cgit v1.2.3 From 2c89940786ef8c6e4dbcd2960142ce513e289f1e Mon Sep 17 00:00:00 2001 From: Hongbo Zhang Date: Wed, 3 Apr 2013 20:18:10 +0800 Subject: ab8500_{bmdata,fg}: Add const attributes to some data arrays This patch adds const attributes to AB8500 power and temperature related read-only data arrays. Signed-off-by: Hongbo Zhang Signed-off-by: Anton Vorontsov --- drivers/power/ab8500_bmdata.c | 20 ++++++++++---------- drivers/power/ab8500_fg.c | 4 ++-- include/linux/mfd/abx500.h | 6 +++--- 3 files changed, 15 insertions(+), 15 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/power/ab8500_bmdata.c b/drivers/power/ab8500_bmdata.c index 05ad9664b05d..3cdcdcff4dd1 100644 --- a/drivers/power/ab8500_bmdata.c +++ b/drivers/power/ab8500_bmdata.c @@ -11,7 +11,7 @@ * Note that the res_to_temp table must be strictly sorted by falling resistance * values to work. */ -static struct abx500_res_to_temp temp_tbl_a_thermistor[] = { +static const struct abx500_res_to_temp temp_tbl_a_thermistor[] = { {-5, 53407}, { 0, 48594}, { 5, 43804}, @@ -29,7 +29,7 @@ static struct abx500_res_to_temp temp_tbl_a_thermistor[] = { {65, 12500}, }; -static struct abx500_res_to_temp temp_tbl_b_thermistor[] = { +static const struct abx500_res_to_temp temp_tbl_b_thermistor[] = { {-5, 200000}, { 0, 159024}, { 5, 151921}, @@ -47,7 +47,7 @@ static struct abx500_res_to_temp temp_tbl_b_thermistor[] = { {65, 82869}, }; -static struct abx500_v_to_cap cap_tbl_a_thermistor[] = { +static const struct abx500_v_to_cap cap_tbl_a_thermistor[] = { {4171, 100}, {4114, 95}, {4009, 83}, @@ -70,7 +70,7 @@ static struct abx500_v_to_cap cap_tbl_a_thermistor[] = { {3247, 0}, }; -static struct abx500_v_to_cap cap_tbl_b_thermistor[] = { +static const struct abx500_v_to_cap cap_tbl_b_thermistor[] = { {4161, 100}, {4124, 98}, {4044, 90}, @@ -93,7 +93,7 @@ static struct abx500_v_to_cap cap_tbl_b_thermistor[] = { {3250, 0}, }; -static struct abx500_v_to_cap cap_tbl[] = { +static const struct abx500_v_to_cap cap_tbl[] = { {4186, 100}, {4163, 99}, {4114, 95}, @@ -124,7 +124,7 @@ static struct abx500_v_to_cap cap_tbl[] = { * Note that the res_to_temp table must be strictly sorted by falling * resistance values to work. */ -static struct abx500_res_to_temp temp_tbl[] = { +static const struct abx500_res_to_temp temp_tbl[] = { {-5, 214834}, { 0, 162943}, { 5, 124820}, @@ -146,7 +146,7 @@ static struct abx500_res_to_temp temp_tbl[] = { * Note that the batres_vs_temp table must be strictly sorted by falling * temperature values to work. */ -static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { +static const struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { { 40, 120}, { 30, 135}, { 20, 165}, @@ -160,7 +160,7 @@ static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { * Note that the batres_vs_temp table must be strictly sorted by falling * temperature values to work. */ -static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { +static const struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { { 60, 300}, { 30, 300}, { 20, 300}, @@ -171,7 +171,7 @@ static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { }; /* battery resistance table for LI ION 9100 battery */ -static struct batres_vs_temp temp_to_batres_tbl_9100[] = { +static const struct batres_vs_temp temp_to_batres_tbl_9100[] = { { 60, 180}, { 30, 180}, { 20, 180}, @@ -547,7 +547,7 @@ int ab8500_bm_of_probe(struct device *dev, struct device_node *np, struct abx500_bm_data *bm) { - struct batres_vs_temp *tmp_batres_tbl; + const struct batres_vs_temp *tmp_batres_tbl; struct device_node *battery_node; const char *btech; int i; diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c index 1601d27ce5d4..c5391f5c372d 100644 --- a/drivers/power/ab8500_fg.c +++ b/drivers/power/ab8500_fg.c @@ -863,7 +863,7 @@ static int ab8500_fg_bat_voltage(struct ab8500_fg *di) static int ab8500_fg_volt_to_capacity(struct ab8500_fg *di, int voltage) { int i, tbl_size; - struct abx500_v_to_cap *tbl; + const struct abx500_v_to_cap *tbl; int cap = 0; tbl = di->bm->bat_type[di->bm->batt_id].v_to_cap_tbl, @@ -915,7 +915,7 @@ static int ab8500_fg_uncomp_volt_to_capacity(struct ab8500_fg *di) static int ab8500_fg_battery_resistance(struct ab8500_fg *di) { int i, tbl_size; - struct batres_vs_temp *tbl; + const struct batres_vs_temp *tbl; int resist = 0; tbl = di->bm->bat_type[di->bm->batt_id].batres_tbl; diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 33b0253569a3..3301b2031c8d 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -183,11 +183,11 @@ struct abx500_battery_type { int low_high_vol_lvl; int battery_resistance; int n_temp_tbl_elements; - struct abx500_res_to_temp *r_to_t_tbl; + const struct abx500_res_to_temp *r_to_t_tbl; int n_v_cap_tbl_elements; - struct abx500_v_to_cap *v_to_cap_tbl; + const struct abx500_v_to_cap *v_to_cap_tbl; int n_batres_tbl_elements; - struct batres_vs_temp *batres_tbl; + const struct batres_vs_temp *batres_tbl; }; /** -- cgit v1.2.3 From aa07f02793ec149d560142f25af0243fff84208b Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 17 Apr 2013 15:13:12 +0530 Subject: regulator: palmas: support for external regulator through control outputs Palmas device have control outputs like REGEN1, REGEN2, REGEN3, SYSEN1 and SYSEN2. These control outputs can be used for controlling external voltage switches to enabled/disable voltage outputs. Add support of these control outputs through regulator framework. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 95 +++++++++++++++++++++++++++++++----- include/linux/mfd/palmas.h | 6 +++ 2 files changed, 89 insertions(+), 12 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index af2109a73a80..c61c0fa83e22 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -165,6 +165,26 @@ static const struct regs_info palmas_regs_info[] = { .vsel_addr = PALMAS_LDOUSB_VOLTAGE, .ctrl_addr = PALMAS_LDOUSB_CTRL, }, + { + .name = "REGEN1", + .ctrl_addr = PALMAS_REGEN1_CTRL, + }, + { + .name = "REGEN2", + .ctrl_addr = PALMAS_REGEN2_CTRL, + }, + { + .name = "REGEN3", + .ctrl_addr = PALMAS_REGEN3_CTRL, + }, + { + .name = "SYSEN1", + .ctrl_addr = PALMAS_SYSEN1_CTRL, + }, + { + .name = "SYSEN2", + .ctrl_addr = PALMAS_SYSEN2_CTRL, + }, }; #define SMPS_CTRL_MODE_OFF 0x00 @@ -422,6 +442,12 @@ static struct regulator_ops palmas_ops_ldo = { .map_voltage = regulator_map_voltage_linear, }; +static struct regulator_ops palmas_ops_extreg = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, +}; + /* * setup the hardware based sleep configuration of the SMPS/LDO regulators * from the platform data. This is different to the software based control @@ -523,6 +549,28 @@ static int palmas_ldo_init(struct palmas *palmas, int id, return 0; } +static int palmas_extreg_init(struct palmas *palmas, int id, + struct palmas_reg_init *reg_init) +{ + unsigned int addr; + int ret; + unsigned int val = 0; + + addr = palmas_regs_info[id].ctrl_addr; + + if (reg_init->mode_sleep) + val = PALMAS_REGEN1_CTRL_MODE_SLEEP; + + ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, + addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); + if (ret < 0) { + dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", + addr, ret); + return ret; + } + return 0; +} + static struct of_regulator_match palmas_matches[] = { { .name = "smps12", }, { .name = "smps123", }, @@ -545,6 +593,11 @@ static struct of_regulator_match palmas_matches[] = { { .name = "ldo9", }, { .name = "ldoln", }, { .name = "ldousb", }, + { .name = "regen1", }, + { .name = "regen2", }, + { .name = "regen3", }, + { .name = "sysen1", }, + { .name = "sysen2", }, }; static void palmas_dt_to_pdata(struct device *dev, @@ -763,21 +816,34 @@ static int palmas_regulators_probe(struct platform_device *pdev) /* Register the regulators */ pmic->desc[id].name = palmas_regs_info[id].name; pmic->desc[id].id = id; - pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; - - pmic->desc[id].ops = &palmas_ops_ldo; - pmic->desc[id].type = REGULATOR_VOLTAGE; pmic->desc[id].owner = THIS_MODULE; - pmic->desc[id].min_uV = 900000; - pmic->desc[id].uV_step = 50000; - pmic->desc[id].linear_min_sel = 1; - pmic->desc[id].vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + + if (id < PALMAS_REG_REGEN1) { + pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; + pmic->desc[id].ops = &palmas_ops_ldo; + pmic->desc[id].min_uV = 900000; + pmic->desc[id].uV_step = 50000; + pmic->desc[id].linear_min_sel = 1; + pmic->desc[id].vsel_reg = + PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, palmas_regs_info[id].vsel_addr); - pmic->desc[id].vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; - pmic->desc[id].enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + pmic->desc[id].vsel_mask = + PALMAS_LDO1_VOLTAGE_VSEL_MASK; + pmic->desc[id].enable_reg = + PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + palmas_regs_info[id].ctrl_addr); + pmic->desc[id].enable_mask = + PALMAS_LDO1_CTRL_MODE_ACTIVE; + } else { + pmic->desc[id].n_voltages = 1; + pmic->desc[id].ops = &palmas_ops_extreg; + pmic->desc[id].enable_reg = + PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, palmas_regs_info[id].ctrl_addr); - pmic->desc[id].enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; + pmic->desc[id].enable_mask = + PALMAS_REGEN1_CTRL_MODE_ACTIVE; + } if (pdata) config.init_data = pdata->reg_data[id]; @@ -803,7 +869,12 @@ static int palmas_regulators_probe(struct platform_device *pdev) if (pdata) { reg_init = pdata->reg_init[id]; if (reg_init) { - ret = palmas_ldo_init(palmas, id, reg_init); + if (id < PALMAS_REG_REGEN1) + ret = palmas_ldo_init(palmas, + id, reg_init); + else + ret = palmas_extreg_init(palmas, + id, reg_init); if (ret) { regulator_unregister(pmic->rdev[id]); goto err_unregister_regulator; diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index a4d13d7cd001..44256aa7b46a 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -154,6 +154,12 @@ enum palmas_regulators { PALMAS_REG_LDO9, PALMAS_REG_LDOLN, PALMAS_REG_LDOUSB, + /* External regulators */ + PALMAS_REG_REGEN1, + PALMAS_REG_REGEN2, + PALMAS_REG_REGEN3, + PALMAS_REG_SYSEN1, + PALMAS_REG_SYSEN2, /* Total number of regulators */ PALMAS_NUM_REGS, }; -- cgit v1.2.3 From 17c11a7603496949989ed286ed218a9e645b6259 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 17 Apr 2013 15:13:13 +0530 Subject: regulator: palmas: add support for LDO8 tracking mode LDO8 of Palma device like tps65913 support the tracking mode on which LDO8 track the SMPS45 voltage when SMPS45 is ON and use the LDO8.VOLTAGE_SEL register when SMPS45 is OFF. On track mode, the steps of voltage change for LDO8 is 25mV where in non-tracking mode it is 50mV. Set the steps accordingly. Number of voltage count is still same for both the cases. Signed-off-by: Laxman Dewangan Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 53 ++++++++++++++++++++++++++++++++++++ include/linux/mfd/palmas.h | 3 ++ 2 files changed, 56 insertions(+) (limited to 'include/linux/mfd') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index c61c0fa83e22..6538b339e441 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -571,6 +571,46 @@ static int palmas_extreg_init(struct palmas *palmas, int id, return 0; } +static void palmas_enable_ldo8_track(struct palmas *palmas) +{ + unsigned int reg; + unsigned int addr; + int ret; + + addr = palmas_regs_info[PALMAS_REG_LDO8].ctrl_addr; + + ret = palmas_ldo_read(palmas, addr, ®); + if (ret) { + dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); + return; + } + + reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; + ret = palmas_ldo_write(palmas, addr, reg); + if (ret < 0) { + dev_err(palmas->dev, "Error in enabling tracking mode\n"); + return; + } + /* + * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 + * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, + * and can be set from 0.45 to 1.65 V. + */ + addr = palmas_regs_info[PALMAS_REG_LDO8].vsel_addr; + ret = palmas_ldo_read(palmas, addr, ®); + if (ret) { + dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); + return; + } + + reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; + ret = palmas_ldo_write(palmas, addr, reg); + if (ret < 0) + dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); + + return; +} + static struct of_regulator_match palmas_matches[] = { { .name = "smps12", }, { .name = "smps123", }, @@ -656,6 +696,11 @@ static void palmas_dt_to_pdata(struct device *dev, if (ret) pdata->reg_init[idx]->vsel = PALMAS_SMPS12_VOLTAGE_RANGE; + + if (idx == PALMAS_REG_LDO8) + pdata->enable_ldo8_tracking = of_property_read_bool( + palmas_matches[idx].of_node, + "ti,enable-ldo8-tracking"); } pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); @@ -835,6 +880,13 @@ static int palmas_regulators_probe(struct platform_device *pdev) palmas_regs_info[id].ctrl_addr); pmic->desc[id].enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; + + /* Check if LDO8 is in tracking mode or not */ + if (pdata && (id == PALMAS_REG_LDO8) && + pdata->enable_ldo8_tracking) { + palmas_enable_ldo8_track(palmas); + pmic->desc[id].uV_step = 25000; + } } else { pmic->desc[id].n_voltages = 1; pmic->desc[id].ops = &palmas_ops_extreg; @@ -883,6 +935,7 @@ static int palmas_regulators_probe(struct platform_device *pdev) } } + return 0; err_unregister_regulator: diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 44256aa7b46a..10daa8c1e73c 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -177,6 +177,9 @@ struct palmas_pmic_platform_data { /* use LDO6 for vibrator control */ int ldo6_vibrator; + + /* Enable tracking mode of LDO8 */ + bool enable_ldo8_tracking; }; struct palmas_usb_platform_data { -- cgit v1.2.3 From 28d1e8cd671a53d6b4f967abbbc2a55f7bd333f6 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 18 Apr 2013 18:32:47 +0530 Subject: regulator: palma: add ramp delay support through regulator constraints Currently Palma regulator driver support the ramp delay through rail specific platform data. As regulator framework support the configuration of ramp delay through regulator constraint, using the framework method and removing the platform specific data approach. Signed-off-by: Laxman Dewangan Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 93 ++++++++++++++++++++++++++++++------ include/linux/mfd/palmas.h | 14 +----- 2 files changed, 79 insertions(+), 28 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 6538b339e441..33369160b770 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -187,6 +187,8 @@ static const struct regs_info palmas_regs_info[] = { }, }; +static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; + #define SMPS_CTRL_MODE_OFF 0x00 #define SMPS_CTRL_MODE_ON 0x01 #define SMPS_CTRL_MODE_ECO 0x02 @@ -397,6 +399,56 @@ static int palmas_map_voltage_smps(struct regulator_dev *rdev, return ret; } +static int palma_smps_set_voltage_smps_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, unsigned int new_selector) +{ + struct palmas_pmic *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int old_uv, new_uv; + unsigned int ramp_delay = pmic->ramp_delay[id]; + + if (!ramp_delay) + return 0; + + old_uv = palmas_list_voltage_smps(rdev, old_selector); + if (old_uv < 0) + return old_uv; + + new_uv = palmas_list_voltage_smps(rdev, new_selector); + if (new_uv < 0) + return new_uv; + + return DIV_ROUND_UP(abs(old_uv - new_uv), ramp_delay); +} + +static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, + int ramp_delay) +{ + struct palmas_pmic *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + unsigned int reg = 0; + unsigned int addr = palmas_regs_info[id].tstep_addr; + int ret; + + if (ramp_delay <= 0) + reg = 0; + else if (ramp_delay < 2500) + reg = 3; + else if (ramp_delay < 5000) + reg = 2; + else + reg = 1; + + ret = palmas_smps_write(pmic->palmas, addr, reg); + if (ret < 0) { + dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); + return ret; + } + + pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; + return ret; +} + static struct regulator_ops palmas_ops_smps = { .is_enabled = palmas_is_enabled_smps, .enable = palmas_enable_smps, @@ -407,6 +459,8 @@ static struct regulator_ops palmas_ops_smps = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = palmas_list_voltage_smps, .map_voltage = palmas_map_voltage_smps, + .set_voltage_time_sel = palma_smps_set_voltage_smps_time_sel, + .set_ramp_delay = palmas_smps_set_ramp_delay, }; static struct regulator_ops palmas_ops_smps10 = { @@ -495,16 +549,6 @@ static int palmas_smps_init(struct palmas *palmas, int id, if (ret) return ret; - if (palmas_regs_info[id].tstep_addr && reg_init->tstep) { - addr = palmas_regs_info[id].tstep_addr; - - reg = reg_init->tstep & PALMAS_SMPS12_TSTEP_TSTEP_MASK; - - ret = palmas_smps_write(palmas, addr, reg); - if (ret) - return ret; - } - if (palmas_regs_info[id].vsel_addr && reg_init->vsel) { addr = palmas_regs_info[id].vsel_addr; @@ -686,11 +730,6 @@ static void palmas_dt_to_pdata(struct device *dev, if (!ret) pdata->reg_init[idx]->mode_sleep = prop; - ret = of_property_read_u32(palmas_matches[idx].of_node, - "ti,tstep", &prop); - if (!ret) - pdata->reg_init[idx]->tstep = prop; - ret = of_property_read_bool(palmas_matches[idx].of_node, "ti,smps-range"); if (ret) @@ -752,6 +791,7 @@ static int palmas_regulators_probe(struct platform_device *pdev) config.driver_data = pmic; for (id = 0; id < PALMAS_REG_LDO1; id++) { + bool ramp_delay_support = false; /* * Miss out regulators which are not available due @@ -762,19 +802,42 @@ static int palmas_regulators_probe(struct platform_device *pdev) case PALMAS_REG_SMPS3: if (pmic->smps123) continue; + if (id == PALMAS_REG_SMPS12) + ramp_delay_support = true; break; case PALMAS_REG_SMPS123: if (!pmic->smps123) continue; + ramp_delay_support = true; break; case PALMAS_REG_SMPS45: case PALMAS_REG_SMPS7: if (pmic->smps457) continue; + if (id == PALMAS_REG_SMPS45) + ramp_delay_support = true; break; case PALMAS_REG_SMPS457: if (!pmic->smps457) continue; + ramp_delay_support = true; + break; + } + + if ((id == PALMAS_REG_SMPS6) && (id == PALMAS_REG_SMPS8)) + ramp_delay_support = true; + + if (ramp_delay_support) { + addr = palmas_regs_info[id].tstep_addr; + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret < 0) { + dev_err(&pdev->dev, + "reading TSTEP reg failed: %d\n", ret); + goto err_unregister_regulator; + } + pmic->desc[id].ramp_delay = + palmas_smps_ramp_delay[reg & 0x3]; + pmic->ramp_delay[id] = pmic->desc[id].ramp_delay; } /* Initialise sleep/init values from platform data */ diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 10daa8c1e73c..a58c579e8cf4 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -109,19 +109,6 @@ struct palmas_reg_init { */ int mode_sleep; - /* tstep is the timestep loaded to the TSTEP register - * - * For SMPS - * - * 0: Jump (no slope control) - * 1: 10mV/us - * 2: 5mV/us - * 3: 2.5mV/us - * - * For LDO unused - */ - int tstep; - /* voltage_sel is the bitfield loaded onto the SMPSX_VOLTAGE * register. Set this is the default voltage set in OTP needs * to be overridden. @@ -339,6 +326,7 @@ struct palmas_pmic { int smps457; int range[PALMAS_REG_SMPS10]; + unsigned int ramp_delay[PALMAS_REG_SMPS10]; }; struct palmas_resource { -- cgit v1.2.3 From 51d3a0c999e18a802a654171b5e05952b4630148 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 18 Apr 2013 18:32:48 +0530 Subject: regulator: palmas: preserve modes of rails during enable/disable The Palma device like TPS65913 have the mode mask which is also used for enable/disable the rails. The mode bits are defined as 00: OFF 01: AUTO 10: ECO 11: Forced PWM and modes are set accordingly as REGULATOR_MODE_NORMAL: AUTO REGULATOR_MODE_IDLE: ECO REGULATOR_MODE_FAST: PWM Two issue observed: 1. If client calls following sequence: regulator_enable(), regulator_set_mode(FAST), regulator_disable() and again the regulator_enable() then the mode is reset to NORMAL inplace of keeping the mode as FAST. Fixing this by storing the current mode configured by client and restoring modes when enable() is called after disable(). 2. In following sequence, the regulator get enabled: regulator_disable() regulator_set_mode(FAST), Fixing this by updating new mode in register only if it is enabled. Signed-off-by: Laxman Dewangan Acked-by: Graeme Gregory Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 30 +++++++++++++++++++++++------- include/linux/mfd/palmas.h | 1 + 2 files changed, 24 insertions(+), 7 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 33369160b770..38447ac53cb8 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -274,7 +274,10 @@ static int palmas_enable_smps(struct regulator_dev *dev) palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; - reg |= SMPS_CTRL_MODE_ON; + if (pmic->current_reg_mode[id]) + reg |= pmic->current_reg_mode[id]; + else + reg |= SMPS_CTRL_MODE_ON; palmas_smps_write(pmic->palmas, palmas_regs_info[id].ctrl_addr, reg); @@ -296,16 +299,19 @@ static int palmas_disable_smps(struct regulator_dev *dev) return 0; } - static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) { struct palmas_pmic *pmic = rdev_get_drvdata(dev); int id = rdev_get_id(dev); unsigned int reg; + bool rail_enable = true; palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + if (reg == SMPS_CTRL_MODE_OFF) + rail_enable = false; + switch (mode) { case REGULATOR_MODE_NORMAL: reg |= SMPS_CTRL_MODE_ON; @@ -319,8 +325,11 @@ static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) default: return -EINVAL; } - palmas_smps_write(pmic->palmas, palmas_regs_info[id].ctrl_addr, reg); + pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + if (rail_enable) + palmas_smps_write(pmic->palmas, + palmas_regs_info[id].ctrl_addr, reg); return 0; } @@ -330,9 +339,7 @@ static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) int id = rdev_get_id(dev); 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 = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; switch (reg) { case SMPS_CTRL_MODE_ON: @@ -871,7 +878,8 @@ static int palmas_regulators_probe(struct platform_device *pdev) /* * Read and store the RANGE bit for later use * This must be done before regulator is probed, - * otherwise we error in probe with unsupportable ranges. + * otherwise we error in probe with unsupportable + * ranges. Read the current smps mode for later use. */ addr = palmas_regs_info[id].vsel_addr; @@ -888,6 +896,14 @@ static int palmas_regulators_probe(struct platform_device *pdev) palmas_regs_info[id].vsel_addr); pmic->desc[id].vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; + + /* Read the smps mode for later use. */ + addr = palmas_regs_info[id].ctrl_addr; + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret) + goto err_unregister_regulator; + pmic->current_reg_mode[id] = reg & + PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; } pmic->desc[id].type = REGULATOR_VOLTAGE; diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index a58c579e8cf4..e971a7c81b79 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -327,6 +327,7 @@ struct palmas_pmic { int range[PALMAS_REG_SMPS10]; unsigned int ramp_delay[PALMAS_REG_SMPS10]; + unsigned int current_reg_mode[PALMAS_REG_SMPS10]; }; struct palmas_resource { -- cgit v1.2.3 From 95e50f6a2fe9ece6503e355400c171e0f5de61be Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 9 Apr 2013 22:51:25 +0300 Subject: mfd: retu: Add Tahvo support Tahvo is a multi-function device on Nokia 770, implementing USB transceiver and charge/battery control. It's so close to Retu that a single driver can support both. Signed-off-by: Aaro Koskinen Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 6 ++-- drivers/mfd/retu-mfd.c | 85 ++++++++++++++++++++++++++++++++++++++++++------ include/linux/mfd/retu.h | 8 ++++- 3 files changed, 85 insertions(+), 14 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2f3ce1836181..9de05020c660 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -371,13 +371,13 @@ config MFD_VIPERBOARD The drivers do not support all features the board exposes. config MFD_RETU - tristate "Nokia Retu multi-function device" + tristate "Nokia Retu and Tahvo multi-function device" select MFD_CORE depends on I2C && GENERIC_HARDIRQS select REGMAP_IRQ help - Retu is a multi-function device found on Nokia Internet Tablets - (770, N800 and N810). + Retu and Tahvo are a multi-function devices found on Nokia + Internet Tablets (770, N800 and N810). config MFD_PCF50633 tristate "NXP PCF50633" diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c index 3ba048655bf3..a1830986eeb7 100644 --- a/drivers/mfd/retu-mfd.c +++ b/drivers/mfd/retu-mfd.c @@ -1,5 +1,5 @@ /* - * Retu MFD driver + * Retu/Tahvo MFD driver * * Copyright (C) 2004, 2005 Nokia Corporation * @@ -33,7 +33,8 @@ #define RETU_REG_ASICR 0x00 /* ASIC ID and revision */ #define RETU_REG_ASICR_VILMA (1 << 7) /* Bit indicating Vilma */ #define RETU_REG_IDR 0x01 /* Interrupt ID */ -#define RETU_REG_IMR 0x02 /* Interrupt mask */ +#define RETU_REG_IMR 0x02 /* Interrupt mask (Retu) */ +#define TAHVO_REG_IMR 0x03 /* Interrupt mask (Tahvo) */ /* Interrupt sources */ #define RETU_INT_PWR 0 /* Power button */ @@ -84,6 +85,62 @@ static struct regmap_irq_chip retu_irq_chip = { /* Retu device registered for the power off. */ static struct retu_dev *retu_pm_power_off; +static struct resource tahvo_usb_res[] = { + { + .name = "tahvo-usb", + .start = TAHVO_INT_VBUS, + .end = TAHVO_INT_VBUS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell tahvo_devs[] = { + { + .name = "tahvo-usb", + .resources = tahvo_usb_res, + .num_resources = ARRAY_SIZE(tahvo_usb_res), + }, +}; + +static struct regmap_irq tahvo_irqs[] = { + [TAHVO_INT_VBUS] = { + .mask = 1 << TAHVO_INT_VBUS, + } +}; + +static struct regmap_irq_chip tahvo_irq_chip = { + .name = "TAHVO", + .irqs = tahvo_irqs, + .num_irqs = ARRAY_SIZE(tahvo_irqs), + .num_regs = 1, + .status_base = RETU_REG_IDR, + .mask_base = TAHVO_REG_IMR, + .ack_base = RETU_REG_IDR, +}; + +static const struct retu_data { + char *chip_name; + char *companion_name; + struct regmap_irq_chip *irq_chip; + struct mfd_cell *children; + int nchildren; +} retu_data[] = { + [0] = { + .chip_name = "Retu", + .companion_name = "Vilma", + .irq_chip = &retu_irq_chip, + .children = retu_devs, + .nchildren = ARRAY_SIZE(retu_devs), + }, + [1] = { + .chip_name = "Tahvo", + .companion_name = "Betty", + .irq_chip = &tahvo_irq_chip, + .children = tahvo_devs, + .nchildren = ARRAY_SIZE(tahvo_devs), + } +}; + int retu_read(struct retu_dev *rdev, u8 reg) { int ret; @@ -173,9 +230,14 @@ static struct regmap_config retu_config = { static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + struct retu_data const *rdat; struct retu_dev *rdev; int ret; + if (i2c->addr > ARRAY_SIZE(retu_data)) + return -ENODEV; + rdat = &retu_data[i2c->addr - 1]; + rdev = devm_kzalloc(&i2c->dev, sizeof(*rdev), GFP_KERNEL); if (rdev == NULL) return -ENOMEM; @@ -190,25 +252,27 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id) ret = retu_read(rdev, RETU_REG_ASICR); if (ret < 0) { - dev_err(rdev->dev, "could not read Retu revision: %d\n", ret); + dev_err(rdev->dev, "could not read %s revision: %d\n", + rdat->chip_name, ret); return ret; } - dev_info(rdev->dev, "Retu%s v%d.%d found\n", - (ret & RETU_REG_ASICR_VILMA) ? " & Vilma" : "", + dev_info(rdev->dev, "%s%s%s v%d.%d found\n", rdat->chip_name, + (ret & RETU_REG_ASICR_VILMA) ? " & " : "", + (ret & RETU_REG_ASICR_VILMA) ? rdat->companion_name : "", (ret >> 4) & 0x7, ret & 0xf); - /* Mask all RETU interrupts. */ - ret = retu_write(rdev, RETU_REG_IMR, 0xffff); + /* Mask all interrupts. */ + ret = retu_write(rdev, rdat->irq_chip->mask_base, 0xffff); if (ret < 0) return ret; ret = regmap_add_irq_chip(rdev->regmap, i2c->irq, IRQF_ONESHOT, -1, - &retu_irq_chip, &rdev->irq_data); + rdat->irq_chip, &rdev->irq_data); if (ret < 0) return ret; - ret = mfd_add_devices(rdev->dev, -1, retu_devs, ARRAY_SIZE(retu_devs), + ret = mfd_add_devices(rdev->dev, -1, rdat->children, rdat->nchildren, NULL, regmap_irq_chip_get_base(rdev->irq_data), NULL); if (ret < 0) { @@ -216,7 +280,7 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id) return ret; } - if (!pm_power_off) { + if (i2c->addr == 1 && !pm_power_off) { retu_pm_power_off = rdev; pm_power_off = retu_power_off; } @@ -240,6 +304,7 @@ static int retu_remove(struct i2c_client *i2c) static const struct i2c_device_id retu_id[] = { { "retu-mfd", 0 }, + { "tahvo-mfd", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, retu_id); diff --git a/include/linux/mfd/retu.h b/include/linux/mfd/retu.h index 1e2715d5b836..65471c4a3926 100644 --- a/include/linux/mfd/retu.h +++ b/include/linux/mfd/retu.h @@ -1,5 +1,5 @@ /* - * Retu MFD driver interface + * Retu/Tahvo MFD driver interface * * This file is subject to the terms and conditions of the GNU General * Public License. See the file "COPYING" in the main directory of this @@ -19,4 +19,10 @@ int retu_write(struct retu_dev *, u8, u16); #define RETU_REG_CC1 0x0d /* Common control register 1 */ #define RETU_REG_STATUS 0x16 /* Status register */ +/* Interrupt sources */ +#define TAHVO_INT_VBUS 0 /* VBUS state */ + +/* Interrupt status */ +#define TAHVO_STAT_VBUS (1 << TAHVO_INT_VBUS) + #endif /* __LINUX_MFD_RETU_H */ -- cgit v1.2.3 From 4c4b8c105a7bbd4a8d41ab4458f01174fdf3fcbb Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Thu, 11 Apr 2013 10:43:40 +0800 Subject: mfd: rtsx: Support RTS5249 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RTS5249 supports SD UHS-II interface. In order to support SD UHS-II，the definitions of some internal registers of RTS5249 have to be modified and are different from its predecessors. So we need this patch to ensure RTS5249 can work, even SD/MMC stack doesn't support UHS-II interface. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz --- drivers/mfd/Makefile | 2 +- drivers/mfd/rts5249.c | 241 +++++++++++++++++++++++++++++++++++++++++++ drivers/mfd/rtsx_pcr.c | 5 + drivers/mfd/rtsx_pcr.h | 1 + include/linux/mfd/rtsx_pci.h | 36 +++++++ 5 files changed, 284 insertions(+), 1 deletion(-) create mode 100644 drivers/mfd/rts5249.c (limited to 'include/linux/mfd') diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f62a583b5c85..067656651b02 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -12,7 +12,7 @@ obj-$(CONFIG_MFD_CROS_EC) += cros_ec.o obj-$(CONFIG_MFD_CROS_EC_I2C) += cros_ec_i2c.o obj-$(CONFIG_MFD_CROS_EC_SPI) += cros_ec_spi.o -rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o +rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o obj-$(CONFIG_MFD_RTSX_PCI) += rtsx_pci.o obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c new file mode 100644 index 000000000000..15dc848bc081 --- /dev/null +++ b/drivers/mfd/rts5249.c @@ -0,0 +1,241 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. + * + * 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, 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, see . + * + * Author: + * Wei WANG + * No. 128, West Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include +#include +#include + +#include "rtsx_pcr.h" + +static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr) +{ + u8 val; + + rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val); + return val & 0x0F; +} + +static int rts5249_extra_init_hw(struct rtsx_pcr *pcr) +{ + rtsx_pci_init_cmd(pcr); + + /* Configure GPIO as output */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02); + /* Switch LDO3318 source from DV33 to card_3v3 */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01); + /* LED shine disabled, set initial shine cycle period */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02); + /* Correct driving */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + SD30_CLK_DRIVE_SEL, 0xFF, 0x99); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + SD30_CMD_DRIVE_SEL, 0xFF, 0x99); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + SD30_DAT_DRIVE_SEL, 0xFF, 0x92); + + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5249_optimize_phy(struct rtsx_pcr *pcr) +{ + int err; + + err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46); + if (err < 0) + return err; + + msleep(1); + + return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0); +} + +static int rts5249_turn_on_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02); +} + +static int rts5249_turn_off_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00); +} + +static int rts5249_enable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08); +} + +static int rts5249_disable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00); +} + +static int rts5249_card_power_on(struct rtsx_pcr *pcr, int card) +{ + int err; + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x02); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + msleep(5); + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_VCC_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x06); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + return 0; +} + +static int rts5249_card_power_off(struct rtsx_pcr *pcr, int card) +{ + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_POWER_OFF); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x00); + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5249_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + int err; + u8 clk_drive, cmd_drive, dat_drive; + + if (voltage == OUTPUT_3V3) { + err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4FC0 | 0x24); + if (err < 0) + return err; + clk_drive = 0x99; + cmd_drive = 0x99; + dat_drive = 0x92; + } else if (voltage == OUTPUT_1V8) { + err = rtsx_pci_write_phy_register(pcr, PHY_BACR, 0x3C02); + if (err < 0) + return err; + err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4C40 | 0x24); + if (err < 0) + return err; + clk_drive = 0xb3; + cmd_drive = 0xb3; + dat_drive = 0xb3; + } else { + return -EINVAL; + } + + /* set pad drive */ + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL, + 0xFF, clk_drive); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL, + 0xFF, cmd_drive); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL, + 0xFF, dat_drive); + return rtsx_pci_send_cmd(pcr, 100); +} + +static const struct pcr_ops rts5249_pcr_ops = { + .extra_init_hw = rts5249_extra_init_hw, + .optimize_phy = rts5249_optimize_phy, + .turn_on_led = rts5249_turn_on_led, + .turn_off_led = rts5249_turn_off_led, + .enable_auto_blink = rts5249_enable_auto_blink, + .disable_auto_blink = rts5249_disable_auto_blink, + .card_power_on = rts5249_card_power_on, + .card_power_off = rts5249_card_power_off, + .switch_output_voltage = rts5249_switch_output_voltage, +}; + +/* SD Pull Control Enable: + * SD_DAT[3:0] ==> pull up + * SD_CD ==> pull up + * SD_WP ==> pull up + * SD_CMD ==> pull up + * SD_CLK ==> pull down + */ +static const u32 rts5249_sd_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA), + 0, +}; + +/* SD Pull Control Disable: + * SD_DAT[3:0] ==> pull down + * SD_CD ==> pull up + * SD_WP ==> pull down + * SD_CMD ==> pull down + * SD_CLK ==> pull down + */ +static const u32 rts5249_sd_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + 0, +}; + +/* MS Pull Control Enable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5249_ms_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +/* MS Pull Control Disable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5249_ms_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +void rts5249_init_params(struct rtsx_pcr *pcr) +{ + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; + pcr->num_slots = 2; + pcr->ops = &rts5249_pcr_ops; + + pcr->ic_version = rts5249_get_ic_version(pcr); + pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl; + pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl; + pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl; + pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl; +} diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 578a1136b6dc..e968c01ca2ac 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -56,6 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = { { PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 }, + { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { 0, } }; @@ -1033,6 +1034,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) case 0x5227: rts5227_init_params(pcr); break; + + case 0x5249: + rts5249_init_params(pcr); + break; } dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n", diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h index 2b3ab8a04823..55fcfc25c4e4 100644 --- a/drivers/mfd/rtsx_pcr.h +++ b/drivers/mfd/rtsx_pcr.h @@ -32,5 +32,6 @@ void rts5209_init_params(struct rtsx_pcr *pcr); void rts5229_init_params(struct rtsx_pcr *pcr); void rtl8411_init_params(struct rtsx_pcr *pcr); void rts5227_init_params(struct rtsx_pcr *pcr); +void rts5249_init_params(struct rtsx_pcr *pcr); #endif diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h index 26ea7f1b7caf..86bc635f8385 100644 --- a/include/linux/mfd/rtsx_pci.h +++ b/include/linux/mfd/rtsx_pci.h @@ -500,6 +500,8 @@ #define BPP_POWER_15_PERCENT_ON 0x08 #define BPP_POWER_ON 0x00 #define BPP_POWER_MASK 0x0F +#define SD_VCC_PARTIAL_POWER_ON 0x02 +#define SD_VCC_POWER_ON 0x00 /* PWR_GATE_CTRL */ #define PWR_GATE_EN 0x01 @@ -689,6 +691,40 @@ #define IMAGE_FLAG_ADDR0 0xCE80 #define IMAGE_FLAG_ADDR1 0xCE81 +/* Phy register */ +#define PHY_PCR 0x00 +#define PHY_RCR0 0x01 +#define PHY_RCR1 0x02 +#define PHY_RCR2 0x03 +#define PHY_RTCR 0x04 +#define PHY_RDR 0x05 +#define PHY_TCR0 0x06 +#define PHY_TCR1 0x07 +#define PHY_TUNE 0x08 +#define PHY_IMR 0x09 +#define PHY_BPCR 0x0A +#define PHY_BIST 0x0B +#define PHY_RAW_L 0x0C +#define PHY_RAW_H 0x0D +#define PHY_RAW_DATA 0x0E +#define PHY_HOST_CLK_CTRL 0x0F +#define PHY_DMR 0x10 +#define PHY_BACR 0x11 +#define PHY_IER 0x12 +#define PHY_BCSR 0x13 +#define PHY_BPR 0x14 +#define PHY_BPNR2 0x15 +#define PHY_BPNR 0x16 +#define PHY_BRNR2 0x17 +#define PHY_BENR 0x18 +#define PHY_REG_REV 0x19 +#define PHY_FLD0 0x1A +#define PHY_FLD1 0x1B +#define PHY_FLD2 0x1C +#define PHY_FLD3 0x1D +#define PHY_FLD4 0x1E +#define PHY_DUM_REG 0x1F + #define rtsx_pci_init_cmd(pcr) ((pcr)->ci = 0) struct rtsx_pcr; -- cgit v1.2.3 From 9b8e1a5e4670b3b24c0e35c0884b4185f17fceab Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Thu, 18 Apr 2013 09:58:30 -0700 Subject: mfd: si476x: Add header files and Kbuild plumbing This patch adds all necessary header files and Kbuild plumbing for the core driver for Silicon Laboratories Si476x series of AM/FM tuner chips. The driver as a whole is implemented as an MFD device and this patch adds a core portion of it that provides all the necessary functionality to the two other drivers that represent radio and audio codec subsystems of the chip. Acked-by: Hans Verkuil Acked-by: Sam Ravnborg Signed-off-by: Andrey Smirnov Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 13 + drivers/mfd/Makefile | 4 + include/linux/mfd/si476x-core.h | 533 ++++++++++++++++++++++++++++++++++++ include/linux/mfd/si476x-platform.h | 267 ++++++++++++++++++ include/linux/mfd/si476x-reports.h | 163 +++++++++++ 5 files changed, 980 insertions(+) create mode 100644 include/linux/mfd/si476x-core.h create mode 100644 include/linux/mfd/si476x-platform.h create mode 100644 include/linux/mfd/si476x-reports.h (limited to 'include/linux/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9de05020c660..7acd863287d1 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -487,6 +487,19 @@ config MFD_SEC_CORE additional drivers must be enabled in order to use the functionality of the device +config MFD_SI476X_CORE + tristate "Silicon Laboratories 4761/64/68 AM/FM radio." + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + This is the core driver for the SI476x series of AM/FM + radio. This MFD driver connects the radio-si476x V4L2 module + and the si476x audio codec. + + To compile this driver as a module, choose M here: the + module will be called si476x-core. + config MFD_SM501 tristate "Silicon Motion SM501" ---help--- diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 067656651b02..718e94a2a9a7 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -134,6 +134,10 @@ obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o obj-$(CONFIG_MFD_TPS6586X) += tps6586x.o obj-$(CONFIG_MFD_VX855) += vx855.o obj-$(CONFIG_MFD_WL1273_CORE) += wl1273-core.o + +si476x-core-y := si476x-cmd.o si476x-prop.o si476x-i2c.o +obj-$(CONFIG_MFD_SI476X_CORE) += si476x-core.o + obj-$(CONFIG_MFD_CS5535) += cs5535-mfd.o obj-$(CONFIG_MFD_OMAP_USB_HOST) += omap-usb-host.o omap-usb-tll.o obj-$(CONFIG_MFD_PM8921_CORE) += pm8921-core.o diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h new file mode 100644 index 000000000000..ede3022c03c4 --- /dev/null +++ b/include/linux/mfd/si476x-core.h @@ -0,0 +1,533 @@ +/* + * include/media/si476x-core.h -- Common definitions for si476x core + * device + * + * Copyright (C) 2012 Innovative Converged Devices(ICD) + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov + * + * 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; version 2 of the License. + * + * 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. + * + */ + +#ifndef SI476X_CORE_H +#define SI476X_CORE_H + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +/* Command Timeouts */ +#define SI476X_DEFAULT_TIMEOUT 100000 +#define SI476X_TIMEOUT_TUNE 700000 +#define SI476X_TIMEOUT_POWER_UP 330000 +#define SI476X_STATUS_POLL_US 0 + +/* -------------------- si476x-i2c.c ----------------------- */ + +enum si476x_freq_supported_chips { + SI476X_CHIP_SI4761 = 1, + SI476X_CHIP_SI4764, + SI476X_CHIP_SI4768, +}; + +enum si476x_part_revisions { + SI476X_REVISION_A10 = 0, + SI476X_REVISION_A20 = 1, + SI476X_REVISION_A30 = 2, +}; + +enum si476x_mfd_cells { + SI476X_RADIO_CELL = 0, + SI476X_CODEC_CELL, + SI476X_MFD_CELLS, +}; + +/** + * enum si476x_power_state - possible power state of the si476x + * device. + * + * @SI476X_POWER_DOWN: In this state all regulators are turned off + * and the reset line is pulled low. The device is completely + * inactive. + * @SI476X_POWER_UP_FULL: In this state all the power regualtors are + * turned on, reset line pulled high, IRQ line is enabled(polling is + * active for polling use scenario) and device is turned on with + * POWER_UP command. The device is ready to be used. + * @SI476X_POWER_INCONSISTENT: This state indicates that previous + * power down was inconsistent, meaning some of the regulators were + * not turned down and thus use of the device, without power-cycling + * is impossible. + */ +enum si476x_power_state { + SI476X_POWER_DOWN = 0, + SI476X_POWER_UP_FULL = 1, + SI476X_POWER_INCONSISTENT = 2, +}; + +/** + * struct si476x_core - internal data structure representing the + * underlying "core" device which all the MFD cell-devices use. + * + * @client: Actual I2C client used to transfer commands to the chip. + * @chip_id: Last digit of the chip model(E.g. "1" for SI4761) + * @cells: MFD cell devices created by this driver. + * @cmd_lock: Mutex used to serialize all the requests to the core + * device. This filed should not be used directly. Instead + * si476x_core_lock()/si476x_core_unlock() should be used to get + * exclusive access to the "core" device. + * @users: Active users counter(Used by the radio cell) + * @rds_read_queue: Wait queue used to wait for RDS data. + * @rds_fifo: FIFO in which all the RDS data received from the chip is + * placed. + * @rds_fifo_drainer: Worker that drains on-chip RDS FIFO. + * @rds_drainer_is_working: Flag used for launching only one instance + * of the @rds_fifo_drainer. + * @rds_drainer_status_lock: Lock used to guard access to the + * @rds_drainer_is_working variable. + * @command: Wait queue for wainting on the command comapletion. + * @cts: Clear To Send flag set upon receiving first status with CTS + * set. + * @tuning: Wait queue used for wainting for tune/seek comand + * completion. + * @stc: Similar to @cts, but for the STC bit of the status value. + * @power_up_parameters: Parameters used as argument for POWER_UP + * command when the device is started. + * @state: Current power state of the device. + * @supplues: Structure containing handles to all power supplies used + * by the device (NULL ones are ignored). + * @gpio_reset: GPIO pin connectet to the RSTB pin of the chip. + * @pinmux: Chip's configurable pins configuration. + * @diversity_mode: Chips role when functioning in diversity mode. + * @status_monitor: Polling worker used in polling use case scenarion + * (when IRQ is not avalible). + * @revision: Chip's running firmware revision number(Used for correct + * command set support). + */ + +struct si476x_core { + struct i2c_client *client; + struct regmap *regmap; + int chip_id; + struct mfd_cell cells[SI476X_MFD_CELLS]; + + struct mutex cmd_lock; /* for serializing fm radio operations */ + atomic_t users; + + wait_queue_head_t rds_read_queue; + struct kfifo rds_fifo; + struct work_struct rds_fifo_drainer; + bool rds_drainer_is_working; + struct mutex rds_drainer_status_lock; + + wait_queue_head_t command; + atomic_t cts; + + wait_queue_head_t tuning; + atomic_t stc; + + struct si476x_power_up_args power_up_parameters; + + enum si476x_power_state power_state; + + struct regulator_bulk_data supplies[4]; + + int gpio_reset; + + struct si476x_pinmux pinmux; + enum si476x_phase_diversity_mode diversity_mode; + + atomic_t is_alive; + + struct delayed_work status_monitor; +#define SI476X_WORK_TO_CORE(w) container_of(to_delayed_work(w), \ + struct si476x_core, \ + status_monitor) + + int revision; + + int rds_fifo_depth; +}; + +static inline struct si476x_core *i2c_mfd_cell_to_core(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev->parent); + return i2c_get_clientdata(client); +} + + +/** + * si476x_core_lock() - lock the core device to get an exclusive access + * to it. + */ +static inline void si476x_core_lock(struct si476x_core *core) +{ + mutex_lock(&core->cmd_lock); +} + +/** + * si476x_core_unlock() - unlock the core device to relinquish an + * exclusive access to it. + */ +static inline void si476x_core_unlock(struct si476x_core *core) +{ + mutex_unlock(&core->cmd_lock); +} + +/* *_TUNE_FREQ family of commands accept frequency in multiples of + 10kHz */ +static inline u16 hz_to_si476x(struct si476x_core *core, int freq) +{ + u16 result; + + switch (core->power_up_parameters.func) { + default: + case SI476X_FUNC_FM_RECEIVER: + result = freq / 10000; + break; + case SI476X_FUNC_AM_RECEIVER: + result = freq / 1000; + break; + } + + return result; +} + +static inline int si476x_to_hz(struct si476x_core *core, u16 freq) +{ + int result; + + switch (core->power_up_parameters.func) { + default: + case SI476X_FUNC_FM_RECEIVER: + result = freq * 10000; + break; + case SI476X_FUNC_AM_RECEIVER: + result = freq * 1000; + break; + } + + return result; +} + +/* Since the V4L2_TUNER_CAP_LOW flag is supplied, V4L2 subsystem + * mesures frequency in 62.5 Hz units */ + +static inline int hz_to_v4l2(int freq) +{ + return (freq * 10) / 625; +} + +static inline int v4l2_to_hz(int freq) +{ + return (freq * 625) / 10; +} + +static inline u16 v4l2_to_si476x(struct si476x_core *core, int freq) +{ + return hz_to_si476x(core, v4l2_to_hz(freq)); +} + +static inline int si476x_to_v4l2(struct si476x_core *core, u16 freq) +{ + return hz_to_v4l2(si476x_to_hz(core, freq)); +} + + + +/** + * struct si476x_func_info - structure containing result of the + * FUNC_INFO command. + * + * @firmware.major: Firmware major number. + * @firmware.minor[...]: Firmware minor numbers. + * @patch_id: + * @func: Mode tuner is working in. + */ +struct si476x_func_info { + struct { + u8 major, minor[2]; + } firmware; + u16 patch_id; + enum si476x_func func; +}; + +/** + * struct si476x_power_down_args - structure used to pass parameters + * to POWER_DOWN command + * + * @xosc: true - Power down, but leav oscillator running. + * false - Full power down. + */ +struct si476x_power_down_args { + bool xosc; +}; + +/** + * enum si476x_tunemode - enum representing possible tune modes for + * the chip. + * @SI476X_TM_VALIDATED_NORMAL_TUNE: Unconditionally stay on the new + * channel after tune, tune status is valid. + * @SI476X_TM_INVALIDATED_FAST_TUNE: Unconditionally stay in the new + * channel after tune, tune status invalid. + * @SI476X_TM_VALIDATED_AF_TUNE: Jump back to previous channel if + * metric thresholds are not met. + * @SI476X_TM_VALIDATED_AF_CHECK: Unconditionally jump back to the + * previous channel. + */ +enum si476x_tunemode { + SI476X_TM_VALIDATED_NORMAL_TUNE = 0, + SI476X_TM_INVALIDATED_FAST_TUNE = 1, + SI476X_TM_VALIDATED_AF_TUNE = 2, + SI476X_TM_VALIDATED_AF_CHECK = 3, +}; + +/** + * enum si476x_smoothmetrics - enum containing the possible setting fo + * audio transitioning of the chip + * @SI476X_SM_INITIALIZE_AUDIO: Initialize audio state to match this + * new channel + * @SI476X_SM_TRANSITION_AUDIO: Transition audio state from previous + * channel values to the new values + */ +enum si476x_smoothmetrics { + SI476X_SM_INITIALIZE_AUDIO = 0, + SI476X_SM_TRANSITION_AUDIO = 1, +}; + +/** + * struct si476x_rds_status_report - the structure representing the + * response to 'FM_RD_STATUS' command + * @rdstpptyint: Traffic program flag(TP) and/or program type(PTY) + * code has changed. + * @rdspiint: Program indentifiaction(PI) code has changed. + * @rdssyncint: RDS synchronization has changed. + * @rdsfifoint: RDS was received and the RDS FIFO has at least + * 'FM_RDS_INTERRUPT_FIFO_COUNT' elements in it. + * @tpptyvalid: TP flag and PTY code are valid falg. + * @pivalid: PI code is valid flag. + * @rdssync: RDS is currently synchronized. + * @rdsfifolost: On or more RDS groups have been lost/discarded flag. + * @tp: Current channel's TP flag. + * @pty: Current channel's PTY code. + * @pi: Current channel's PI code. + * @rdsfifoused: Number of blocks remaining in the RDS FIFO (0 if + * empty). + */ +struct si476x_rds_status_report { + bool rdstpptyint, rdspiint, rdssyncint, rdsfifoint; + bool tpptyvalid, pivalid, rdssync, rdsfifolost; + bool tp; + + u8 pty; + u16 pi; + + u8 rdsfifoused; + u8 ble[4]; + + struct v4l2_rds_data rds[4]; +}; + +struct si476x_rsq_status_args { + bool primary; + bool rsqack; + bool attune; + bool cancel; + bool stcack; +}; + +enum si476x_injside { + SI476X_INJSIDE_AUTO = 0, + SI476X_INJSIDE_LOW = 1, + SI476X_INJSIDE_HIGH = 2, +}; + +struct si476x_tune_freq_args { + bool zifsr; + bool hd; + enum si476x_injside injside; + int freq; + enum si476x_tunemode tunemode; + enum si476x_smoothmetrics smoothmetrics; + int antcap; +}; + +int si476x_core_stop(struct si476x_core *, bool); +int si476x_core_start(struct si476x_core *, bool); +int si476x_core_set_power_state(struct si476x_core *, enum si476x_power_state); +bool si476x_core_has_am(struct si476x_core *); +bool si476x_core_has_diversity(struct si476x_core *); +bool si476x_core_is_a_secondary_tuner(struct si476x_core *); +bool si476x_core_is_a_primary_tuner(struct si476x_core *); +bool si476x_core_is_in_am_receiver_mode(struct si476x_core *core); +bool si476x_core_is_powered_up(struct si476x_core *core); + +enum si476x_i2c_type { + SI476X_I2C_SEND, + SI476X_I2C_RECV +}; + +int si476x_core_i2c_xfer(struct si476x_core *, + enum si476x_i2c_type, + char *, int); + + +/* -------------------- si476x-cmd.c ----------------------- */ + +int si476x_core_cmd_func_info(struct si476x_core *, struct si476x_func_info *); +int si476x_core_cmd_set_property(struct si476x_core *, u16, u16); +int si476x_core_cmd_get_property(struct si476x_core *, u16); +int si476x_core_cmd_dig_audio_pin_cfg(struct si476x_core *, + enum si476x_dclk_config, + enum si476x_dfs_config, + enum si476x_dout_config, + enum si476x_xout_config); +int si476x_core_cmd_zif_pin_cfg(struct si476x_core *, + enum si476x_iqclk_config, + enum si476x_iqfs_config, + enum si476x_iout_config, + enum si476x_qout_config); +int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *, + enum si476x_icin_config, + enum si476x_icip_config, + enum si476x_icon_config, + enum si476x_icop_config); +int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *, + enum si476x_lrout_config); +int si476x_core_cmd_intb_pin_cfg(struct si476x_core *, enum si476x_intb_config, + enum si476x_a1_config); +int si476x_core_cmd_fm_seek_start(struct si476x_core *, bool, bool); +int si476x_core_cmd_am_seek_start(struct si476x_core *, bool, bool); +int si476x_core_cmd_fm_rds_status(struct si476x_core *, bool, bool, bool, + struct si476x_rds_status_report *); +int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *, bool, + struct si476x_rds_blockcount_report *); +int si476x_core_cmd_fm_tune_freq(struct si476x_core *, + struct si476x_tune_freq_args *); +int si476x_core_cmd_am_tune_freq(struct si476x_core *, + struct si476x_tune_freq_args *); +int si476x_core_cmd_am_rsq_status(struct si476x_core *, + struct si476x_rsq_status_args *, + struct si476x_rsq_status_report *); +int si476x_core_cmd_fm_rsq_status(struct si476x_core *, + struct si476x_rsq_status_args *, + struct si476x_rsq_status_report *); +int si476x_core_cmd_power_up(struct si476x_core *, + struct si476x_power_up_args *); +int si476x_core_cmd_power_down(struct si476x_core *, + struct si476x_power_down_args *); +int si476x_core_cmd_fm_phase_div_status(struct si476x_core *); +int si476x_core_cmd_fm_phase_diversity(struct si476x_core *, + enum si476x_phase_diversity_mode); + +int si476x_core_cmd_fm_acf_status(struct si476x_core *, + struct si476x_acf_status_report *); +int si476x_core_cmd_am_acf_status(struct si476x_core *, + struct si476x_acf_status_report *); +int si476x_core_cmd_agc_status(struct si476x_core *, + struct si476x_agc_status_report *); + +enum si476x_power_grid_type { + SI476X_POWER_GRID_50HZ = 0, + SI476X_POWER_GRID_60HZ, +}; + +/* Properties */ + +enum si476x_interrupt_flags { + SI476X_STCIEN = (1 << 0), + SI476X_ACFIEN = (1 << 1), + SI476X_RDSIEN = (1 << 2), + SI476X_RSQIEN = (1 << 3), + + SI476X_ERRIEN = (1 << 6), + SI476X_CTSIEN = (1 << 7), + + SI476X_STCREP = (1 << 8), + SI476X_ACFREP = (1 << 9), + SI476X_RDSREP = (1 << 10), + SI476X_RSQREP = (1 << 11), +}; + +enum si476x_rdsint_sources { + SI476X_RDSTPPTY = (1 << 4), + SI476X_RDSPI = (1 << 3), + SI476X_RDSSYNC = (1 << 1), + SI476X_RDSRECV = (1 << 0), +}; + +enum si476x_status_response_bits { + SI476X_CTS = (1 << 7), + SI476X_ERR = (1 << 6), + /* Status response for WB receiver */ + SI476X_WB_ASQ_INT = (1 << 4), + SI476X_RSQ_INT = (1 << 3), + /* Status response for FM receiver */ + SI476X_FM_RDS_INT = (1 << 2), + SI476X_ACF_INT = (1 << 1), + SI476X_STC_INT = (1 << 0), +}; + +/* -------------------- si476x-prop.c ----------------------- */ + +enum si476x_common_receiver_properties { + SI476X_PROP_INT_CTL_ENABLE = 0x0000, + SI476X_PROP_DIGITAL_IO_INPUT_SAMPLE_RATE = 0x0200, + SI476X_PROP_DIGITAL_IO_INPUT_FORMAT = 0x0201, + SI476X_PROP_DIGITAL_IO_OUTPUT_SAMPLE_RATE = 0x0202, + SI476X_PROP_DIGITAL_IO_OUTPUT_FORMAT = 0x0203, + + SI476X_PROP_SEEK_BAND_BOTTOM = 0x1100, + SI476X_PROP_SEEK_BAND_TOP = 0x1101, + SI476X_PROP_SEEK_FREQUENCY_SPACING = 0x1102, + + SI476X_PROP_VALID_MAX_TUNE_ERROR = 0x2000, + SI476X_PROP_VALID_SNR_THRESHOLD = 0x2003, + SI476X_PROP_VALID_RSSI_THRESHOLD = 0x2004, +}; + +enum si476x_am_receiver_properties { + SI476X_PROP_AUDIO_PWR_LINE_FILTER = 0x0303, +}; + +enum si476x_fm_receiver_properties { + SI476X_PROP_AUDIO_DEEMPHASIS = 0x0302, + + SI476X_PROP_FM_RDS_INTERRUPT_SOURCE = 0x4000, + SI476X_PROP_FM_RDS_INTERRUPT_FIFO_COUNT = 0x4001, + SI476X_PROP_FM_RDS_CONFIG = 0x4002, +}; + +enum si476x_prop_audio_pwr_line_filter_bits { + SI476X_PROP_PWR_HARMONICS_MASK = 0b0000000000011111, + SI476X_PROP_PWR_GRID_MASK = 0b0000000100000000, + SI476X_PROP_PWR_ENABLE_MASK = 0b0000001000000000, + SI476X_PROP_PWR_GRID_50HZ = 0b0000000000000000, + SI476X_PROP_PWR_GRID_60HZ = 0b0000000100000000, +}; + +enum si476x_prop_fm_rds_config_bits { + SI476X_PROP_RDSEN_MASK = 0x1, + SI476X_PROP_RDSEN = 0x1, +}; + + +struct regmap *devm_regmap_init_si476x(struct si476x_core *); + +#endif /* SI476X_CORE_H */ diff --git a/include/linux/mfd/si476x-platform.h b/include/linux/mfd/si476x-platform.h new file mode 100644 index 000000000000..88bb93b7a9d5 --- /dev/null +++ b/include/linux/mfd/si476x-platform.h @@ -0,0 +1,267 @@ +/* + * include/media/si476x-platform.h -- Platform data specific definitions + * + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov + * + * 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; version 2 of the License. + * + * 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. + * + */ + +#ifndef __SI476X_PLATFORM_H__ +#define __SI476X_PLATFORM_H__ + +/* It is possible to select one of the four adresses using pins A0 + * and A1 on SI476x */ +#define SI476X_I2C_ADDR_1 0x60 +#define SI476X_I2C_ADDR_2 0x61 +#define SI476X_I2C_ADDR_3 0x62 +#define SI476X_I2C_ADDR_4 0x63 + +enum si476x_iqclk_config { + SI476X_IQCLK_NOOP = 0, + SI476X_IQCLK_TRISTATE = 1, + SI476X_IQCLK_IQ = 21, +}; +enum si476x_iqfs_config { + SI476X_IQFS_NOOP = 0, + SI476X_IQFS_TRISTATE = 1, + SI476X_IQFS_IQ = 21, +}; +enum si476x_iout_config { + SI476X_IOUT_NOOP = 0, + SI476X_IOUT_TRISTATE = 1, + SI476X_IOUT_OUTPUT = 22, +}; +enum si476x_qout_config { + SI476X_QOUT_NOOP = 0, + SI476X_QOUT_TRISTATE = 1, + SI476X_QOUT_OUTPUT = 22, +}; + +enum si476x_dclk_config { + SI476X_DCLK_NOOP = 0, + SI476X_DCLK_TRISTATE = 1, + SI476X_DCLK_DAUDIO = 10, +}; + +enum si476x_dfs_config { + SI476X_DFS_NOOP = 0, + SI476X_DFS_TRISTATE = 1, + SI476X_DFS_DAUDIO = 10, +}; + +enum si476x_dout_config { + SI476X_DOUT_NOOP = 0, + SI476X_DOUT_TRISTATE = 1, + SI476X_DOUT_I2S_OUTPUT = 12, + SI476X_DOUT_I2S_INPUT = 13, +}; + +enum si476x_xout_config { + SI476X_XOUT_NOOP = 0, + SI476X_XOUT_TRISTATE = 1, + SI476X_XOUT_I2S_INPUT = 13, + SI476X_XOUT_MODE_SELECT = 23, +}; + +enum si476x_icin_config { + SI476X_ICIN_NOOP = 0, + SI476X_ICIN_TRISTATE = 1, + SI476X_ICIN_GPO1_HIGH = 2, + SI476X_ICIN_GPO1_LOW = 3, + SI476X_ICIN_IC_LINK = 30, +}; + +enum si476x_icip_config { + SI476X_ICIP_NOOP = 0, + SI476X_ICIP_TRISTATE = 1, + SI476X_ICIP_GPO2_HIGH = 2, + SI476X_ICIP_GPO2_LOW = 3, + SI476X_ICIP_IC_LINK = 30, +}; + +enum si476x_icon_config { + SI476X_ICON_NOOP = 0, + SI476X_ICON_TRISTATE = 1, + SI476X_ICON_I2S = 10, + SI476X_ICON_IC_LINK = 30, +}; + +enum si476x_icop_config { + SI476X_ICOP_NOOP = 0, + SI476X_ICOP_TRISTATE = 1, + SI476X_ICOP_I2S = 10, + SI476X_ICOP_IC_LINK = 30, +}; + + +enum si476x_lrout_config { + SI476X_LROUT_NOOP = 0, + SI476X_LROUT_TRISTATE = 1, + SI476X_LROUT_AUDIO = 2, + SI476X_LROUT_MPX = 3, +}; + + +enum si476x_intb_config { + SI476X_INTB_NOOP = 0, + SI476X_INTB_TRISTATE = 1, + SI476X_INTB_DAUDIO = 10, + SI476X_INTB_IRQ = 40, +}; + +enum si476x_a1_config { + SI476X_A1_NOOP = 0, + SI476X_A1_TRISTATE = 1, + SI476X_A1_IRQ = 40, +}; + + +struct si476x_pinmux { + enum si476x_dclk_config dclk; + enum si476x_dfs_config dfs; + enum si476x_dout_config dout; + enum si476x_xout_config xout; + + enum si476x_iqclk_config iqclk; + enum si476x_iqfs_config iqfs; + enum si476x_iout_config iout; + enum si476x_qout_config qout; + + enum si476x_icin_config icin; + enum si476x_icip_config icip; + enum si476x_icon_config icon; + enum si476x_icop_config icop; + + enum si476x_lrout_config lrout; + + enum si476x_intb_config intb; + enum si476x_a1_config a1; +}; + +enum si476x_ibias6x { + SI476X_IBIAS6X_OTHER = 0, + SI476X_IBIAS6X_RCVR1_NON_4MHZ_CLK = 1, +}; + +enum si476x_xstart { + SI476X_XSTART_MULTIPLE_TUNER = 0x11, + SI476X_XSTART_NORMAL = 0x77, +}; + +enum si476x_freq { + SI476X_FREQ_4_MHZ = 0, + SI476X_FREQ_37P209375_MHZ = 1, + SI476X_FREQ_36P4_MHZ = 2, + SI476X_FREQ_37P8_MHZ = 3, +}; + +enum si476x_xmode { + SI476X_XMODE_CRYSTAL_RCVR1 = 1, + SI476X_XMODE_EXT_CLOCK = 2, + SI476X_XMODE_CRYSTAL_RCVR2_3 = 3, +}; + +enum si476x_xbiashc { + SI476X_XBIASHC_SINGLE_RECEIVER = 0, + SI476X_XBIASHC_MULTIPLE_RECEIVER = 1, +}; + +enum si476x_xbias { + SI476X_XBIAS_RCVR2_3 = 0, + SI476X_XBIAS_4MHZ_RCVR1 = 3, + SI476X_XBIAS_RCVR1 = 7, +}; + +enum si476x_func { + SI476X_FUNC_BOOTLOADER = 0, + SI476X_FUNC_FM_RECEIVER = 1, + SI476X_FUNC_AM_RECEIVER = 2, + SI476X_FUNC_WB_RECEIVER = 3, +}; + + +/** + * @xcload: Selects the amount of additional on-chip capacitance to + * be connected between XTAL1 and gnd and between XTAL2 and + * GND. One half of the capacitance value shown here is the + * additional load capacitance presented to the xtal. The + * minimum step size is 0.277 pF. Recommended value is 0x28 + * but it will be layout dependent. Range is 0–0x3F i.e. + * (0–16.33 pF) + * @ctsien: enable CTSINT(interrupt request when CTS condition + * arises) when set + * @intsel: when set A1 pin becomes the interrupt pin; otherwise, + * INTB is the interrupt pin + * @func: selects the boot function of the device. I.e. + * SI476X_BOOTLOADER - Boot loader + * SI476X_FM_RECEIVER - FM receiver + * SI476X_AM_RECEIVER - AM receiver + * SI476X_WB_RECEIVER - Weatherband receiver + * @freq: oscillator's crystal frequency: + * SI476X_XTAL_37P209375_MHZ - 37.209375 Mhz + * SI476X_XTAL_36P4_MHZ - 36.4 Mhz + * SI476X_XTAL_37P8_MHZ - 37.8 Mhz + */ +struct si476x_power_up_args { + enum si476x_ibias6x ibias6x; + enum si476x_xstart xstart; + u8 xcload; + bool fastboot; + enum si476x_xbiashc xbiashc; + enum si476x_xbias xbias; + enum si476x_func func; + enum si476x_freq freq; + enum si476x_xmode xmode; +}; + + +/** + * enum si476x_phase_diversity_mode - possbile phase diversity modes + * for SI4764/5/6/7 chips. + * + * @SI476X_PHDIV_DISABLED: Phase diversity feature is + * disabled. + * @SI476X_PHDIV_PRIMARY_COMBINING: Tuner works as a primary tuner + * in combination with a + * secondary one. + * @SI476X_PHDIV_PRIMARY_ANTENNA: Tuner works as a primary tuner + * using only its own antenna. + * @SI476X_PHDIV_SECONDARY_ANTENNA: Tuner works as a primary tuner + * usning seconary tuner's antenna. + * @SI476X_PHDIV_SECONDARY_COMBINING: Tuner works as a secondary + * tuner in combination with the + * primary one. + */ +enum si476x_phase_diversity_mode { + SI476X_PHDIV_DISABLED = 0, + SI476X_PHDIV_PRIMARY_COMBINING = 1, + SI476X_PHDIV_PRIMARY_ANTENNA = 2, + SI476X_PHDIV_SECONDARY_ANTENNA = 3, + SI476X_PHDIV_SECONDARY_COMBINING = 5, +}; + + +/* + * Platform dependent definition + */ +struct si476x_platform_data { + int gpio_reset; /* < 0 if not used */ + + struct si476x_power_up_args power_up_parameters; + enum si476x_phase_diversity_mode diversity_mode; + + struct si476x_pinmux pinmux; +}; + + +#endif /* __SI476X_PLATFORM_H__ */ diff --git a/include/linux/mfd/si476x-reports.h b/include/linux/mfd/si476x-reports.h new file mode 100644 index 000000000000..e0b9455a79c0 --- /dev/null +++ b/include/linux/mfd/si476x-reports.h @@ -0,0 +1,163 @@ +/* + * include/media/si476x-platform.h -- Definitions of the data formats + * returned by debugfs hooks + * + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov + * + * 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; version 2 of the License. + * + * 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. + * + */ + +#ifndef __SI476X_REPORTS_H__ +#define __SI476X_REPORTS_H__ + +/** + * struct si476x_rsq_status - structure containing received signal + * quality + * @multhint: Multipath Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_MULTIPATH_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_MULTIPATH_HIGH_THRESHOLD + * @multlint: Multipath Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_MULTIPATH_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_MULTIPATH_LOW_THRESHOLD + * @snrhint: SNR Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_SNR_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_SNR_HIGH_THRESHOLD + * @snrlint: SNR Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_SNR_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_SNR_LOW_THRESHOLD + * @rssihint: RSSI Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_RSSI_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_RSSI_HIGH_THRESHOLD + * @rssilint: RSSI Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_RSSI_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_RSSI_LOW_THRESHOLD + * @bltf: Band Limit. + * Set if seek command hits the band limit or wrapped to + * the original frequency. + * @snr_ready: SNR measurement in progress. + * @rssiready: RSSI measurement in progress. + * @afcrl: Set if FREQOFF >= MAX_TUNE_ERROR + * @valid: Set if the channel is valid + * rssi < FM_VALID_RSSI_THRESHOLD + * snr < FM_VALID_SNR_THRESHOLD + * tune_error < FM_VALID_MAX_TUNE_ERROR + * @readfreq: Current tuned frequency. + * @freqoff: Signed frequency offset. + * @rssi: Received Signal Strength Indicator(dBuV). + * @snr: RF SNR Indicator(dB). + * @lassi: + * @hassi: Low/High side Adjacent(100 kHz) Channel Strength Indicator + * @mult: Multipath indicator + * @dev: Who knows? But values may vary. + * @readantcap: Antenna tuning capacity value. + * @assi: Adjacent Channel(+/- 200kHz) Strength Indicator + * @usn: Ultrasonic Noise Inticator in -DBFS + */ +struct si476x_rsq_status_report { + __u8 multhint, multlint; + __u8 snrhint, snrlint; + __u8 rssihint, rssilint; + __u8 bltf; + __u8 snr_ready; + __u8 rssiready; + __u8 injside; + __u8 afcrl; + __u8 valid; + + __u16 readfreq; + __s8 freqoff; + __s8 rssi; + __s8 snr; + __s8 issi; + __s8 lassi, hassi; + __s8 mult; + __u8 dev; + __u16 readantcap; + __s8 assi; + __s8 usn; + + __u8 pilotdev; + __u8 rdsdev; + __u8 assidev; + __u8 strongdev; + __u16 rdspi; +} __packed; + +/** + * si476x_acf_status_report - ACF report results + * + * @blend_int: If set, indicates that stereo separation has crossed + * below the blend threshold as set by FM_ACF_BLEND_THRESHOLD + * @hblend_int: If set, indicates that HiBlend cutoff frequency is + * lower than threshold as set by FM_ACF_HBLEND_THRESHOLD + * @hicut_int: If set, indicates that HiCut cutoff frequency is lower + * than the threshold set by ACF_ + + */ +struct si476x_acf_status_report { + __u8 blend_int; + __u8 hblend_int; + __u8 hicut_int; + __u8 chbw_int; + __u8 softmute_int; + __u8 smute; + __u8 smattn; + __u8 chbw; + __u8 hicut; + __u8 hiblend; + __u8 pilot; + __u8 stblend; +} __packed; + +enum si476x_fmagc { + SI476X_FMAGC_10K_OHM = 0, + SI476X_FMAGC_800_OHM = 1, + SI476X_FMAGC_400_OHM = 2, + SI476X_FMAGC_200_OHM = 4, + SI476X_FMAGC_100_OHM = 8, + SI476X_FMAGC_50_OHM = 16, + SI476X_FMAGC_25_OHM = 32, + SI476X_FMAGC_12P5_OHM = 64, + SI476X_FMAGC_6P25_OHM = 128, +}; + +struct si476x_agc_status_report { + __u8 mxhi; + __u8 mxlo; + __u8 lnahi; + __u8 lnalo; + __u8 fmagc1; + __u8 fmagc2; + __u8 pgagain; + __u8 fmwblang; +} __packed; + +struct si476x_rds_blockcount_report { + __u16 expected; + __u16 received; + __u16 uncorrectable; +} __packed; + +#endif /* __SI476X_REPORTS_H__ */ -- cgit v1.2.3 From 99f4c6b66a9ae362d21e6df95d04bc74e04d285e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 26 Apr 2013 17:23:26 +0200 Subject: mfd: si476x: Don't use 0bNNN This doesn't compile with sparc64 gcc-3.4.5. Cc: Hans Verkuil Cc: Sam Ravnborg Cc: Andrey Smirnov Signed-off-by: Andrew Morton Signed-off-by: Samuel Ortiz --- include/linux/mfd/si476x-core.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h index ede3022c03c4..ba89b94e4a56 100644 --- a/include/linux/mfd/si476x-core.h +++ b/include/linux/mfd/si476x-core.h @@ -515,11 +515,11 @@ enum si476x_fm_receiver_properties { }; enum si476x_prop_audio_pwr_line_filter_bits { - SI476X_PROP_PWR_HARMONICS_MASK = 0b0000000000011111, - SI476X_PROP_PWR_GRID_MASK = 0b0000000100000000, - SI476X_PROP_PWR_ENABLE_MASK = 0b0000001000000000, - SI476X_PROP_PWR_GRID_50HZ = 0b0000000000000000, - SI476X_PROP_PWR_GRID_60HZ = 0b0000000100000000, + SI476X_PROP_PWR_HARMONICS_MASK = 0x001f, + SI476X_PROP_PWR_GRID_MASK = 0x0100, + SI476X_PROP_PWR_ENABLE_MASK = 0x0200, + SI476X_PROP_PWR_GRID_50HZ = 0x0000, + SI476X_PROP_PWR_GRID_60HZ = 0x0100, }; enum si476x_prop_fm_rds_config_bits { -- cgit v1.2.3 From 4d22f8c306233433bdf9298b2e7806e9c71674bc Mon Sep 17 00:00:00 2001 From: Matus Ujhelyi Date: Mon, 29 Apr 2013 16:18:08 -0700 Subject: drivers/video/backlight/tps65217_bl.c add default brightness value option Signed-off-by: Matus Ujhelyi Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .../bindings/video/backlight/tps65217-backlight.txt | 3 +++ drivers/video/backlight/tps65217_bl.c | 15 ++++++++++++++- include/linux/mfd/tps65217.h | 1 + 3 files changed, 18 insertions(+), 1 deletion(-) (limited to 'include/linux/mfd') diff --git a/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt b/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt index 76485247b35d..5fb9279ac287 100644 --- a/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt +++ b/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt @@ -9,6 +9,7 @@ Required properties: - backlight: node for specifying WLED1 and WLED2 lines in TPS65217 - isel: selection bit, valid values: 1 for ISEL1 (low-level) and 2 for ISEL2 (high-level) - fdim: PWM dimming frequency, valid values: 100, 200, 500, 1000 +- default-brightness: valid values: 0-100 Each regulator is defined using the standard binding for regulators. @@ -20,5 +21,7 @@ Example: backlight { isel = <1>; /* 1 - ISET1, 2 ISET2 */ fdim = <100>; /* TPS65217_BL_FDIM_100HZ */ + default-brightness = <50>; }; }; + diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c index 70881633b45a..05782312aeb3 100644 --- a/drivers/video/backlight/tps65217_bl.c +++ b/drivers/video/backlight/tps65217_bl.c @@ -245,6 +245,18 @@ tps65217_bl_parse_dt(struct platform_device *pdev) } } + if (!of_property_read_u32(node, "default-brightness", &val)) { + if (val < 0 || + val > 100) { + dev_err(&pdev->dev, + "invalid 'default-brightness' value in the device tree\n"); + err = ERR_PTR(-EINVAL); + goto err; + } + + pdata->dft_brightness = val; + } + of_node_put(node); return pdata; @@ -311,7 +323,8 @@ static int tps65217_bl_probe(struct platform_device *pdev) return PTR_ERR(tps65217_bl->bl); } - tps65217_bl->bl->props.brightness = 0; + tps65217_bl->bl->props.brightness = pdata->dft_brightness; + backlight_update_status(tps65217_bl->bl); platform_set_drvdata(pdev, tps65217_bl); return 0; diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index 290762f93930..29eab2bd3dfa 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -228,6 +228,7 @@ enum tps65217_bl_fdim { struct tps65217_bl_pdata { enum tps65217_bl_isel isel; enum tps65217_bl_fdim fdim; + int dft_brightness; }; /** -- cgit v1.2.3 From 0b8ebdb18888c55588b932f4f564b9c9529de627 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Thu, 9 May 2013 13:08:08 +0200 Subject: mfd: ab8500-sysctrl: Always enable pm_power_off handler AB8500 sysctrl driver implements a pm_power_off handler, but that is currently not registered until a specific platform data field is enabled. This patch drops the platform data field and always registers ab8500_power_off if no other pm_power_off handler was defined before, and also introduces the necessary cleanup code in the driver's remove function. Acked-by: Linus Walleij Signed-off-by: Fabio Baltieri Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-sysctrl.c | 6 +++++- include/linux/mfd/abx500/ab8500.h | 2 -- 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'include/linux/mfd') diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index b851692b0755..0c20361eae26 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -193,7 +193,7 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev) sysctrl_dev = &pdev->dev; - if (plat->pm_power_off) + if (!pm_power_off) pm_power_off = ab8500_power_off; pdata = plat->sysctrl; @@ -228,6 +228,10 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev) static int ab8500_sysctrl_remove(struct platform_device *pdev) { sysctrl_dev = NULL; + + if (pm_power_off == ab8500_power_off) + pm_power_off = NULL; + return 0; } diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index fb1bf7d6a410..0390d5943ed6 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -373,13 +373,11 @@ struct ab8500_sysctrl_platform_data; /** * struct ab8500_platform_data - AB8500 platform data * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used - * @pm_power_off: Should machine pm power off hook be registered or not * @init: board-specific initialization after detection of ab8500 * @regulator: machine-specific constraints for regulators */ struct ab8500_platform_data { int irq_base; - bool pm_power_off; void (*init) (struct ab8500 *); struct ab8500_regulator_platform_data *regulator; struct abx500_gpio_platform_data *gpio; -- cgit v1.2.3