diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/max77686.c | 148 |
1 files changed, 141 insertions, 7 deletions
diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 20dae7b..383eb9d 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -70,6 +70,82 @@ struct max77686_data { unsigned int opmode[MAX77686_REGULATORS]; }; +/* Some BUCKS supports Normal[ON/OFF] mode during suspend */ +static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev) +{ + unsigned int val; + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + + if (rdev->desc->id == MAX77686_BUCK1) + val = 0x1; + else + val = 0x1 << MAX77686_OPMODE_BUCK234_SHIFT; + + max77686->opmode[rdev->desc->id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + val); +} + +/* Some LDOs supports [LPM/Normal]ON mode during suspend state */ +static int max77686_set_suspend_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + unsigned int val; + + /* BUCK[5-9] doesn't support this feature */ + if (rdev->desc->id >= MAX77686_BUCK5) + return 0; + + switch (mode) { + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = 0x2 << MAX77686_OPMODE_SHIFT; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = 0x3 << MAX77686_OPMODE_SHIFT; + break; + default: + pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + max77686->opmode[rdev->desc->id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + val); +} + +/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */ +static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + unsigned int val; + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + + switch (mode) { + case REGULATOR_MODE_STANDBY: /* switch off */ + val = 0x1 << MAX77686_OPMODE_SHIFT; + break; + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = 0x2 << MAX77686_OPMODE_SHIFT; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = 0x3 << MAX77686_OPMODE_SHIFT; + break; + default: + pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + max77686->opmode[rdev->desc->id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + val); +} + int max77686_enable(struct regulator_dev *rdev) { struct max77686_data *max77686 = rdev_get_drvdata(rdev); @@ -113,6 +189,31 @@ static struct regulator_ops max77686_ops = { .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77686_set_suspend_mode, +}; + +static struct regulator_ops max77686_ldo_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77686_ldo_set_suspend_mode, +}; + +static struct regulator_ops max77686_buck1_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_disable = max77686_buck_set_suspend_disable, }; static struct regulator_ops max77686_buck_dvs_ops = { @@ -125,6 +226,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = max77686_set_ramp_delay, + .set_suspend_disable = max77686_buck_set_suspend_disable, }; #define regulator_desc_ldo(num) { \ @@ -143,9 +245,41 @@ static struct regulator_ops max77686_buck_dvs_ops = { .enable_mask = MAX77686_OPMODE_MASK \ << MAX77686_OPMODE_SHIFT, \ } +#define regulator_desc_lpm_ldo(num) { \ + .name = "LDO"#num, \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_MINUV, \ + .uV_step = MAX77686_LDO_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} #define regulator_desc_ldo_low(num) { \ .name = "LDO"#num, \ .id = MAX77686_LDO##num, \ + .ops = &max77686_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_LOW_MINUV, \ + .uV_step = MAX77686_LDO_LOW_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_ldo1_low(num) { \ + .name = "LDO"#num, \ + .id = MAX77686_LDO##num, \ .ops = &max77686_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ @@ -177,7 +311,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { #define regulator_desc_buck1(num) { \ .name = "BUCK"#num, \ .id = MAX77686_BUCK##num, \ - .ops = &max77686_ops, \ + .ops = &max77686_buck1_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .min_uV = MAX77686_BUCK_MINUV, \ @@ -207,7 +341,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } static struct regulator_desc regulators[] = { - regulator_desc_ldo_low(1), + regulator_desc_ldo1_low(1), regulator_desc_ldo_low(2), regulator_desc_ldo(3), regulator_desc_ldo(4), @@ -216,13 +350,13 @@ static struct regulator_desc regulators[] = { regulator_desc_ldo_low(7), regulator_desc_ldo_low(8), regulator_desc_ldo(9), - regulator_desc_ldo(10), - regulator_desc_ldo(11), - regulator_desc_ldo(12), + regulator_desc_lpm_ldo(10), + regulator_desc_lpm_ldo(11), + regulator_desc_lpm_ldo(12), regulator_desc_ldo(13), - regulator_desc_ldo(14), + regulator_desc_lpm_ldo(14), regulator_desc_ldo_low(15), - regulator_desc_ldo(16), + regulator_desc_lpm_ldo(16), regulator_desc_ldo(17), regulator_desc_ldo(18), regulator_desc_ldo(19), |
