diff options
Diffstat (limited to 'drivers/pinctrl/sirf/pinctrl-atlas7.c')
-rw-r--r-- | drivers/pinctrl/sirf/pinctrl-atlas7.c | 525 |
1 files changed, 389 insertions, 136 deletions
diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c index 9384e0aa3996..9df0c5f25824 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas7.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c @@ -148,6 +148,19 @@ enum altas7_pad_type { #define DIV_DISABLE 0x1 #define DIV_ENABLE 0x0 +/* Number of Function input disable registers */ +#define NUM_OF_IN_DISABLE_REG 0x2 + +/* Offset of Function input disable registers */ +#define IN_DISABLE_0_REG_SET 0x0A00 +#define IN_DISABLE_0_REG_CLR 0x0A04 +#define IN_DISABLE_1_REG_SET 0x0A08 +#define IN_DISABLE_1_REG_CLR 0x0A0C +#define IN_DISABLE_VAL_0_REG_SET 0x0A80 +#define IN_DISABLE_VAL_0_REG_CLR 0x0A84 +#define IN_DISABLE_VAL_1_REG_SET 0x0A88 +#define IN_DISABLE_VAL_1_REG_CLR 0x0A8C + struct dt_params { const char *property; int value; @@ -197,6 +210,16 @@ struct atlas7_pad_config { } /** + * struct atlas7_pad_status - Atlas7 Pad status + */ +struct atlas7_pad_status { + u8 func; + u8 pull; + u8 dstr; + u8 reserved; +}; + +/** * struct atlas7_pad_mux - Atlas7 mux * @bank: The bank of this pad's registers on. * @pin : The ID of this Pad. @@ -285,6 +308,9 @@ struct atlas7_pinctrl_data { /* Platform info of atlas7 pinctrl */ #define ATLAS7_PINCTRL_REG_BANKS 2 #define ATLAS7_PINCTRL_BANK_0_PINS 18 +#define ATLAS7_PINCTRL_BANK_1_PINS 141 +#define ATLAS7_PINCTRL_TOTAL_PINS \ + (ATLAS7_PINCTRL_BANK_0_PINS + ATLAS7_PINCTRL_BANK_1_PINS) /** * Atlas7 GPIO Chip @@ -316,6 +342,7 @@ struct atlas7_gpio_bank { unsigned int gpio_offset; unsigned int ngpio; const unsigned int *gpio_pins; + u32 sleep_data[NGPIO_OF_BANK]; }; struct atlas7_gpio_chip { @@ -343,6 +370,9 @@ struct atlas7_pmx { struct pinctrl_desc pctl_desc; struct atlas7_pinctrl_data *pctl_data; void __iomem *regs[ATLAS7_PINCTRL_REG_BANKS]; + u32 status_ds[NUM_OF_IN_DISABLE_REG]; + u32 status_dsv[NUM_OF_IN_DISABLE_REG]; + struct atlas7_pad_status sleep_data[ATLAS7_PINCTRL_TOTAL_PINS]; }; /* @@ -3480,6 +3510,160 @@ struct atlas7_pinctrl_data atlas7_ioc_data = { .confs_cnt = ARRAY_SIZE(atlas7_ioc_pad_confs), }; +/* Simple map data structure */ +struct map_data { + u8 idx; + u8 data; +}; + +/** + * struct atlas7_pull_info - Atlas7 Pad pull info + * @type:The type of this Pad. + * @mask:The mas value of this pin's pull bits. + * @v2s: The map of pull register value to pull status. + * @s2v: The map of pull status to pull register value. + */ +struct atlas7_pull_info { + u8 pad_type; + u8 mask; + const struct map_data *v2s; + const struct map_data *s2v; +}; + +/* Pull Register value map to status */ +static const struct map_data p4we_pull_v2s[] = { + { P4WE_PULL_UP, PULL_UP }, + { P4WE_HIGH_HYSTERESIS, HIGH_HYSTERESIS }, + { P4WE_HIGH_Z, HIGH_Z }, + { P4WE_PULL_DOWN, PULL_DOWN }, +}; + +static const struct map_data p16st_pull_v2s[] = { + { P16ST_PULL_UP, PULL_UP }, + { PD, PULL_UNKNOWN }, + { P16ST_HIGH_Z, HIGH_Z }, + { P16ST_PULL_DOWN, PULL_DOWN }, +}; + +static const struct map_data pm31_pull_v2s[] = { + { PM31_PULL_DISABLED, PULL_DOWN }, + { PM31_PULL_ENABLED, PULL_UP }, +}; + +static const struct map_data pangd_pull_v2s[] = { + { PANGD_PULL_UP, PULL_UP }, + { PD, PULL_UNKNOWN }, + { PANGD_HIGH_Z, HIGH_Z }, + { PANGD_PULL_DOWN, PULL_DOWN }, +}; + +/* Pull status map to register value */ +static const struct map_data p4we_pull_s2v[] = { + { PULL_UP, P4WE_PULL_UP }, + { HIGH_HYSTERESIS, P4WE_HIGH_HYSTERESIS }, + { HIGH_Z, P4WE_HIGH_Z }, + { PULL_DOWN, P4WE_PULL_DOWN }, + { PULL_DISABLE, -1 }, + { PULL_ENABLE, -1 }, +}; + +static const struct map_data p16st_pull_s2v[] = { + { PULL_UP, P16ST_PULL_UP }, + { HIGH_HYSTERESIS, -1 }, + { HIGH_Z, P16ST_HIGH_Z }, + { PULL_DOWN, P16ST_PULL_DOWN }, + { PULL_DISABLE, -1 }, + { PULL_ENABLE, -1 }, +}; + +static const struct map_data pm31_pull_s2v[] = { + { PULL_UP, PM31_PULL_ENABLED }, + { HIGH_HYSTERESIS, -1 }, + { HIGH_Z, -1 }, + { PULL_DOWN, PM31_PULL_DISABLED }, + { PULL_DISABLE, -1 }, + { PULL_ENABLE, -1 }, +}; + +static const struct map_data pangd_pull_s2v[] = { + { PULL_UP, PANGD_PULL_UP }, + { HIGH_HYSTERESIS, -1 }, + { HIGH_Z, PANGD_HIGH_Z }, + { PULL_DOWN, PANGD_PULL_DOWN }, + { PULL_DISABLE, -1 }, + { PULL_ENABLE, -1 }, +}; + +static const struct atlas7_pull_info atlas7_pull_map[] = { + { PAD_T_4WE_PD, P4WE_PULL_MASK, p4we_pull_v2s, p4we_pull_s2v }, + { PAD_T_4WE_PU, P4WE_PULL_MASK, p4we_pull_v2s, p4we_pull_s2v }, + { PAD_T_16ST, P16ST_PULL_MASK, p16st_pull_v2s, p16st_pull_s2v }, + { PAD_T_M31_0204_PD, PM31_PULL_MASK, pm31_pull_v2s, pm31_pull_s2v }, + { PAD_T_M31_0204_PU, PM31_PULL_MASK, pm31_pull_v2s, pm31_pull_s2v }, + { PAD_T_M31_0610_PD, PM31_PULL_MASK, pm31_pull_v2s, pm31_pull_s2v }, + { PAD_T_M31_0610_PU, PM31_PULL_MASK, pm31_pull_v2s, pm31_pull_s2v }, + { PAD_T_AD, PANGD_PULL_MASK, pangd_pull_v2s, pangd_pull_s2v }, +}; + +/** + * struct atlas7_ds_ma_info - Atlas7 Pad DriveStrength & currents info + * @ma: The Drive Strength in current value . + * @ds_16st: The correspond raw value of 16st pad. + * @ds_4we: The correspond raw value of 4we pad. + * @ds_0204m31: The correspond raw value of 0204m31 pad. + * @ds_0610m31: The correspond raw value of 0610m31 pad. + */ +struct atlas7_ds_ma_info { + u32 ma; + u32 ds_16st; + u32 ds_4we; + u32 ds_0204m31; + u32 ds_0610m31; +}; + +static const struct atlas7_ds_ma_info atlas7_ma2ds_map[] = { + { 2, DS_16ST_0, DS_4WE_0, DS_M31_0, DS_NULL }, + { 4, DS_16ST_1, DS_NULL, DS_M31_1, DS_NULL }, + { 6, DS_16ST_2, DS_NULL, DS_NULL, DS_M31_0 }, + { 8, DS_16ST_3, DS_4WE_1, DS_NULL, DS_NULL }, + { 10, DS_16ST_4, DS_NULL, DS_NULL, DS_M31_1 }, + { 12, DS_16ST_5, DS_NULL, DS_NULL, DS_NULL }, + { 14, DS_16ST_6, DS_NULL, DS_NULL, DS_NULL }, + { 16, DS_16ST_7, DS_4WE_2, DS_NULL, DS_NULL }, + { 18, DS_16ST_8, DS_NULL, DS_NULL, DS_NULL }, + { 20, DS_16ST_9, DS_NULL, DS_NULL, DS_NULL }, + { 22, DS_16ST_10, DS_NULL, DS_NULL, DS_NULL }, + { 24, DS_16ST_11, DS_NULL, DS_NULL, DS_NULL }, + { 26, DS_16ST_12, DS_NULL, DS_NULL, DS_NULL }, + { 28, DS_16ST_13, DS_4WE_3, DS_NULL, DS_NULL }, + { 30, DS_16ST_14, DS_NULL, DS_NULL, DS_NULL }, + { 32, DS_16ST_15, DS_NULL, DS_NULL, DS_NULL }, +}; + +/** + * struct atlas7_ds_info - Atlas7 Pad DriveStrength info + * @type: The type of this Pad. + * @mask: The mask value of this pin's pull bits. + * @imval: The immediate value of drives trength register. + */ +struct atlas7_ds_info { + u8 type; + u8 mask; + u8 imval; + u8 reserved; +}; + +static const struct atlas7_ds_info atlas7_ds_map[] = { + { PAD_T_4WE_PD, DS_2BIT_MASK, DS_2BIT_IM_VAL }, + { PAD_T_4WE_PU, DS_2BIT_MASK, DS_2BIT_IM_VAL }, + { PAD_T_16ST, DS_4BIT_MASK, DS_4BIT_IM_VAL }, + { PAD_T_M31_0204_PD, DS_1BIT_MASK, DS_1BIT_IM_VAL }, + { PAD_T_M31_0204_PU, DS_1BIT_MASK, DS_1BIT_IM_VAL }, + { PAD_T_M31_0610_PD, DS_1BIT_MASK, DS_1BIT_IM_VAL }, + { PAD_T_M31_0610_PU, DS_1BIT_MASK, DS_1BIT_IM_VAL }, + { PAD_T_AD, DS_NULL, DS_NULL }, +}; + static inline u32 atlas7_pin_to_bank(u32 pin) { return (pin >= ATLAS7_PINCTRL_BANK_0_PINS) ? 1 : 0; @@ -3682,49 +3866,22 @@ static int atlas7_pmx_set_mux(struct pinctrl_dev *pctldev, return 0; } -struct atlas7_ds_info { - u32 ma; - u32 ds_16st; - u32 ds_4we; - u32 ds_0204m31; - u32 ds_0610m31; -}; - -const struct atlas7_ds_info atlas7_ds_map[] = { - { 2, DS_16ST_0, DS_4WE_0, DS_M31_0, DS_NULL}, - { 4, DS_16ST_1, DS_NULL, DS_M31_1, DS_NULL}, - { 6, DS_16ST_2, DS_NULL, DS_NULL, DS_M31_0}, - { 8, DS_16ST_3, DS_4WE_1, DS_NULL, DS_NULL}, - { 10, DS_16ST_4, DS_NULL, DS_NULL, DS_M31_1}, - { 12, DS_16ST_5, DS_NULL, DS_NULL, DS_NULL}, - { 14, DS_16ST_6, DS_NULL, DS_NULL, DS_NULL}, - { 16, DS_16ST_7, DS_4WE_2, DS_NULL, DS_NULL}, - { 18, DS_16ST_8, DS_NULL, DS_NULL, DS_NULL}, - { 20, DS_16ST_9, DS_NULL, DS_NULL, DS_NULL}, - { 22, DS_16ST_10, DS_NULL, DS_NULL, DS_NULL}, - { 24, DS_16ST_11, DS_NULL, DS_NULL, DS_NULL}, - { 26, DS_16ST_12, DS_NULL, DS_NULL, DS_NULL}, - { 28, DS_16ST_13, DS_4WE_3, DS_NULL, DS_NULL}, - { 30, DS_16ST_14, DS_NULL, DS_NULL, DS_NULL}, - { 32, DS_16ST_15, DS_NULL, DS_NULL, DS_NULL}, -}; - static u32 convert_current_to_drive_strength(u32 type, u32 ma) { int idx; - for (idx = 0; idx < ARRAY_SIZE(atlas7_ds_map); idx++) { - if (atlas7_ds_map[idx].ma != ma) + for (idx = 0; idx < ARRAY_SIZE(atlas7_ma2ds_map); idx++) { + if (atlas7_ma2ds_map[idx].ma != ma) continue; if (type == PAD_T_4WE_PD || type == PAD_T_4WE_PU) - return atlas7_ds_map[idx].ds_4we; + return atlas7_ma2ds_map[idx].ds_4we; else if (type == PAD_T_16ST) - return atlas7_ds_map[idx].ds_16st; + return atlas7_ma2ds_map[idx].ds_16st; else if (type == PAD_T_M31_0204_PD || type == PAD_T_M31_0204_PU) - return atlas7_ds_map[idx].ds_0204m31; + return atlas7_ma2ds_map[idx].ds_0204m31; else if (type == PAD_T_M31_0610_PD || type == PAD_T_M31_0610_PU) - return atlas7_ds_map[idx].ds_0610m31; + return atlas7_ma2ds_map[idx].ds_0610m31; } return DS_NULL; @@ -3735,78 +3892,21 @@ static int altas7_pinctrl_set_pull_sel(struct pinctrl_dev *pctldev, { struct atlas7_pmx *pmx = pinctrl_dev_get_drvdata(pctldev); struct atlas7_pad_config *conf = &pmx->pctl_data->confs[pin]; - u32 type = conf->type; - u32 shift = conf->pupd_bit; - u32 bank = atlas7_pin_to_bank(pin); - void __iomem *pull_sel_reg, *pull_clr_reg; + const struct atlas7_pull_info *pull_info; + u32 bank; + unsigned long regv; + void __iomem *pull_sel_reg; + bank = atlas7_pin_to_bank(pin); + pull_info = &atlas7_pull_map[conf->type]; pull_sel_reg = pmx->regs[bank] + conf->pupd_reg; - pull_clr_reg = CLR_REG(pull_sel_reg); - - if (type == PAD_T_4WE_PD || type == PAD_T_4WE_PU) { - writel(P4WE_PULL_MASK << shift, pull_clr_reg); - - if (sel == PULL_UP) - writel(P4WE_PULL_UP << shift, pull_sel_reg); - else if (sel == HIGH_HYSTERESIS) - writel(P4WE_HIGH_HYSTERESIS << shift, pull_sel_reg); - else if (sel == HIGH_Z) - writel(P4WE_HIGH_Z << shift, pull_sel_reg); - else if (sel == PULL_DOWN) - writel(P4WE_PULL_DOWN << shift, pull_sel_reg); - else { - pr_err("Unknown Pull select type for 4WEPAD#%d\n", - pin); - return -ENOTSUPP; - } - } else if (type == PAD_T_16ST) { - writel(P16ST_PULL_MASK << shift, pull_clr_reg); - - if (sel == PULL_UP) - writel(P16ST_PULL_UP << shift, pull_sel_reg); - else if (sel == HIGH_Z) - writel(P16ST_HIGH_Z << shift, pull_sel_reg); - else if (sel == PULL_DOWN) - writel(P16ST_PULL_DOWN << shift, pull_sel_reg); - else { - pr_err("Unknown Pull select type for 16STPAD#%d\n", - pin); - return -ENOTSUPP; - } - } else if (type == PAD_T_M31_0204_PD || - type == PAD_T_M31_0204_PU || - type == PAD_T_M31_0610_PD || - type == PAD_T_M31_0610_PU) { - writel(PM31_PULL_MASK << shift, pull_clr_reg); - - if (sel == PULL_UP) - writel(PM31_PULL_ENABLED << shift, pull_sel_reg); - else if (sel == PULL_DOWN) - writel(PM31_PULL_DISABLED << shift, pull_sel_reg); - else { - pr_err("Unknown Pull select type for M31PAD#%d\n", - pin); - return -ENOTSUPP; - } - } else if (type == PAD_T_AD) { - writel(PANGD_PULL_MASK << shift, pull_clr_reg); - - if (sel == PULL_UP) - writel(PANGD_PULL_UP << shift, pull_sel_reg); - else if (sel == HIGH_Z) - writel(PANGD_HIGH_Z << shift, pull_sel_reg); - else if (sel == PULL_DOWN) - writel(PANGD_PULL_DOWN << shift, pull_sel_reg); - else { - pr_err("Unknown Pull select type for A/D PAD#%d\n", - pin); - return -ENOTSUPP; - } - } else { - pr_err("Unknown Pad type[%d] for pull select PAD#%d\n", - type, pin); - return -ENOTSUPP; - } + + /* Retrieve correspond register value from table by sel */ + regv = pull_info->s2v[sel].data & pull_info->mask; + + /* Clear & Set new value to pull register */ + writel(pull_info->mask << conf->pupd_bit, CLR_REG(pull_sel_reg)); + writel(regv << conf->pupd_bit, pull_sel_reg); pr_debug("PIN_CFG ### SET PIN#%d PULL SELECTOR:%d == OK ####\n", pin, sel); @@ -3818,43 +3918,25 @@ static int __altas7_pinctrl_set_drive_strength_sel(struct pinctrl_dev *pctldev, { struct atlas7_pmx *pmx = pinctrl_dev_get_drvdata(pctldev); struct atlas7_pad_config *conf = &pmx->pctl_data->confs[pin]; - u32 type = conf->type; - u32 shift = conf->drvstr_bit; - u32 bank = atlas7_pin_to_bank(pin); - void __iomem *ds_sel_reg, *ds_clr_reg; - - ds_sel_reg = pmx->regs[bank] + conf->drvstr_reg; - ds_clr_reg = CLR_REG(ds_sel_reg); - if (type == PAD_T_4WE_PD || type == PAD_T_4WE_PU) { - if (sel & (~DS_2BIT_MASK)) - goto unsupport; - - writel(DS_2BIT_IM_VAL << shift, ds_clr_reg); - writel(sel << shift, ds_sel_reg); - - return 0; - } else if (type == PAD_T_16ST) { - if (sel & (~DS_4BIT_MASK)) - goto unsupport; + const struct atlas7_ds_info *ds_info; + u32 bank; + void __iomem *ds_sel_reg; - writel(DS_4BIT_IM_VAL << shift, ds_clr_reg); - writel(sel << shift, ds_sel_reg); + ds_info = &atlas7_ds_map[conf->type]; + if (sel & (~(ds_info->mask))) + goto unsupport; - return 0; - } else if (type == PAD_T_M31_0204_PD || type == PAD_T_M31_0204_PU || - type == PAD_T_M31_0610_PD || type == PAD_T_M31_0610_PU) { - if (sel & (~DS_1BIT_MASK)) - goto unsupport; + bank = atlas7_pin_to_bank(pin); + ds_sel_reg = pmx->regs[bank] + conf->drvstr_reg; - writel(DS_1BIT_IM_VAL << shift, ds_clr_reg); - writel(sel << shift, ds_sel_reg); + writel(ds_info->imval << conf->drvstr_bit, CLR_REG(ds_sel_reg)); + writel(sel << conf->drvstr_bit, ds_sel_reg); - return 0; - } + return 0; unsupport: pr_err("Pad#%d type[%d] doesn't support ds code[%d]!\n", - pin, type, sel); + pin, conf->type, sel); return -ENOTSUPP; } @@ -4101,14 +4183,135 @@ unmap_io: return ret; } +#ifdef CONFIG_PM_SLEEP +static int atlas7_pinmux_suspend_noirq(struct device *dev) +{ + struct atlas7_pmx *pmx = dev_get_drvdata(dev); + struct atlas7_pad_status *status; + struct atlas7_pad_config *conf; + const struct atlas7_ds_info *ds_info; + const struct atlas7_pull_info *pull_info; + int idx; + u32 bank; + unsigned long regv; + + for (idx = 0; idx < pmx->pctl_desc.npins; idx++) { + /* Get this Pad's descriptor from PINCTRL */ + conf = &pmx->pctl_data->confs[idx]; + bank = atlas7_pin_to_bank(idx); + status = &pmx->sleep_data[idx]; + + /* Save Function selector */ + regv = readl(pmx->regs[bank] + conf->mux_reg); + status->func = (regv >> conf->mux_bit) & FUNC_CLEAR_MASK; + + /* Check if Pad is in Analogue selector */ + if (conf->ad_ctrl_reg == -1) + goto save_ds_sel; + + regv = readl(pmx->regs[bank] + conf->ad_ctrl_reg); + if (!(regv & (conf->ad_ctrl_bit << ANA_CLEAR_MASK))) + status->func = FUNC_ANALOGUE; + +save_ds_sel: + if (conf->drvstr_reg == -1) + goto save_pull_sel; + + /* Save Drive Strength selector */ + ds_info = &atlas7_ds_map[conf->type]; + regv = readl(pmx->regs[bank] + conf->drvstr_reg); + status->dstr = (regv >> conf->drvstr_bit) & ds_info->mask; + +save_pull_sel: + /* Save Pull selector */ + pull_info = &atlas7_pull_map[conf->type]; + regv = readl(pmx->regs[bank] + conf->pupd_reg); + regv = (regv >> conf->pupd_bit) & pull_info->mask; + status->pull = pull_info->v2s[regv].data; + } + + /* + * Save disable input selector, this selector is not for Pin, + * but for Mux function. + */ + for (idx = 0; idx < NUM_OF_IN_DISABLE_REG; idx++) { + pmx->status_ds[idx] = readl(pmx->regs[BANK_DS] + + IN_DISABLE_0_REG_SET + 0x8 * idx); + pmx->status_dsv[idx] = readl(pmx->regs[BANK_DS] + + IN_DISABLE_VAL_0_REG_SET + 0x8 * idx); + } + + return 0; +} + +static int atlas7_pinmux_resume_noirq(struct device *dev) +{ + struct atlas7_pmx *pmx = dev_get_drvdata(dev); + struct atlas7_pad_status *status; + struct atlas7_pad_config *conf; + int idx; + u32 bank; + + for (idx = 0; idx < pmx->pctl_desc.npins; idx++) { + /* Get this Pad's descriptor from PINCTRL */ + conf = &pmx->pctl_data->confs[idx]; + bank = atlas7_pin_to_bank(idx); + status = &pmx->sleep_data[idx]; + + /* Restore Function selector */ + __atlas7_pmx_pin_enable(pmx, idx, (u32)status->func & 0xff); + + if (FUNC_ANALOGUE == status->func) + goto restore_pull_sel; + + /* Restore Drive Strength selector */ + __altas7_pinctrl_set_drive_strength_sel(pmx->pctl, idx, + (u32)status->dstr & 0xff); + +restore_pull_sel: + /* Restore Pull selector */ + altas7_pinctrl_set_pull_sel(pmx->pctl, idx, + (u32)status->pull & 0xff); + } + + /* + * Restore disable input selector, this selector is not for Pin, + * but for Mux function + */ + for (idx = 0; idx < NUM_OF_IN_DISABLE_REG; idx++) { + writel(~0, pmx->regs[BANK_DS] + + IN_DISABLE_0_REG_CLR + 0x8 * idx); + writel(pmx->status_ds[idx], pmx->regs[BANK_DS] + + IN_DISABLE_0_REG_SET + 0x8 * idx); + writel(~0, pmx->regs[BANK_DS] + + IN_DISABLE_VAL_0_REG_CLR + 0x8 * idx); + writel(pmx->status_dsv[idx], pmx->regs[BANK_DS] + + IN_DISABLE_VAL_0_REG_SET + 0x8 * idx); + } + + return 0; +} + +static const struct dev_pm_ops atlas7_pinmux_pm_ops = { + .suspend_noirq = atlas7_pinmux_suspend_noirq, + .resume_noirq = atlas7_pinmux_resume_noirq, + .freeze_noirq = atlas7_pinmux_suspend_noirq, + .restore_noirq = atlas7_pinmux_resume_noirq, +}; +#endif + static const struct of_device_id atlas7_pinmux_ids[] = { { .compatible = "sirf,atlas7-ioc",}, + {}, }; static struct platform_driver atlas7_pinmux_driver = { .driver = { .name = "atlas7-ioc", .of_match_table = atlas7_pinmux_ids, +#ifdef CONFIG_PM_SLEEP + .pm = &atlas7_pinmux_pm_ops, +#endif }, .probe = atlas7_pinmux_probe, }; @@ -4286,14 +4489,15 @@ static struct irq_chip atlas7_gpio_irq_chip = { .irq_set_type = atlas7_gpio_irq_type, }; -static void atlas7_gpio_handle_irq(unsigned int irq, struct irq_desc *desc) +static void atlas7_gpio_handle_irq(unsigned int __irq, struct irq_desc *desc) { struct gpio_chip *gc = irq_desc_get_handler_data(desc); struct atlas7_gpio_chip *a7gc = to_atlas7_gpio(gc); struct atlas7_gpio_bank *bank = NULL; u32 status, ctrl; int pin_in_bank = 0, idx; - struct irq_chip *chip = irq_get_chip(irq); + struct irq_chip *chip = irq_desc_get_chip(desc); + unsigned int irq = irq_desc_get_irq(desc); for (idx = 0; idx < a7gc->nbank; idx++) { bank = &a7gc->banks[idx]; @@ -4496,6 +4700,7 @@ static void atlas7_gpio_set_value(struct gpio_chip *chip, static const struct of_device_id atlas7_gpio_ids[] = { { .compatible = "sirf,atlas7-gpio", }, + {}, }; static int atlas7_gpio_probe(struct platform_device *pdev) @@ -4612,17 +4817,65 @@ static int atlas7_gpio_probe(struct platform_device *pdev) BUG_ON(!bank->pctldev); } + platform_set_drvdata(pdev, a7gc); dev_info(&pdev->dev, "add to system.\n"); return 0; failed: return ret; } +#ifdef CONFIG_PM_SLEEP +static int atlas7_gpio_suspend_noirq(struct device *dev) +{ + struct atlas7_gpio_chip *a7gc = dev_get_drvdata(dev); + struct atlas7_gpio_bank *bank; + void __iomem *ctrl_reg; + u32 idx, pin; + + for (idx = 0; idx < a7gc->nbank; idx++) { + bank = &a7gc->banks[idx]; + for (pin = 0; pin < bank->ngpio; pin++) { + ctrl_reg = ATLAS7_GPIO_CTRL(bank, pin); + bank->sleep_data[pin] = readl(ctrl_reg); + } + } + + return 0; +} + +static int atlas7_gpio_resume_noirq(struct device *dev) +{ + struct atlas7_gpio_chip *a7gc = dev_get_drvdata(dev); + struct atlas7_gpio_bank *bank; + void __iomem *ctrl_reg; + u32 idx, pin; + + for (idx = 0; idx < a7gc->nbank; idx++) { + bank = &a7gc->banks[idx]; + for (pin = 0; pin < bank->ngpio; pin++) { + ctrl_reg = ATLAS7_GPIO_CTRL(bank, pin); + writel(bank->sleep_data[pin], ctrl_reg); + } + } + + return 0; +} + +static const struct dev_pm_ops atlas7_gpio_pm_ops = { + .suspend_noirq = atlas7_gpio_suspend_noirq, + .resume_noirq = atlas7_gpio_resume_noirq, + .freeze_noirq = atlas7_gpio_suspend_noirq, + .restore_noirq = atlas7_gpio_resume_noirq, +}; +#endif + static struct platform_driver atlas7_gpio_driver = { .driver = { .name = "atlas7-gpio", - .owner = THIS_MODULE, .of_match_table = atlas7_gpio_ids, +#ifdef CONFIG_PM_SLEEP + .pm = &atlas7_gpio_pm_ops, +#endif }, .probe = atlas7_gpio_probe, }; |