diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/rk808-regulator.c | 57 |
1 files changed, 54 insertions, 3 deletions
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index e305416d7697..8d1dc48ed8a9 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -36,6 +36,12 @@ #define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET) +/* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */ +#define RK808_SLP_REG_OFFSET 1 + +/* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */ +#define RK808_SLP_SET_OFF_REG_OFFSET 2 + static const int rk808_buck_config_regs[] = { RK808_BUCK1_CONFIG_REG, RK808_BUCK2_CONFIG_REG, @@ -91,6 +97,43 @@ static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) RK808_RAMP_RATE_MASK, ramp_value); } +int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv) +{ + unsigned int reg; + int sel = regulator_map_voltage_linear_range(rdev, uv, uv); + + if (sel < 0) + return -EINVAL; + + reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; + + return regmap_update_bits(rdev->regmap, reg, + rdev->desc->vsel_mask, + sel); +} + +int rk808_set_suspend_enable(struct regulator_dev *rdev) +{ + unsigned int reg; + + reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; + + return regmap_update_bits(rdev->regmap, reg, + rdev->desc->enable_mask, + 0); +} + +int rk808_set_suspend_disable(struct regulator_dev *rdev) +{ + unsigned int reg; + + reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; + + return regmap_update_bits(rdev->regmap, reg, + rdev->desc->enable_mask, + rdev->desc->enable_mask); +} + static struct regulator_ops rk808_buck1_2_ops = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, @@ -100,6 +143,9 @@ static struct regulator_ops rk808_buck1_2_ops = { .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_ramp_delay = rk808_set_ramp_delay, + .set_suspend_voltage = rk808_set_suspend_voltage, + .set_suspend_enable = rk808_set_suspend_enable, + .set_suspend_disable = rk808_set_suspend_disable, }; static struct regulator_ops rk808_reg_ops = { @@ -110,12 +156,17 @@ static struct regulator_ops rk808_reg_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, + .set_suspend_voltage = rk808_set_suspend_voltage, + .set_suspend_enable = rk808_set_suspend_enable, + .set_suspend_disable = rk808_set_suspend_disable, }; static struct regulator_ops rk808_switch_ops = { - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_suspend_enable = rk808_set_suspend_enable, + .set_suspend_disable = rk808_set_suspend_disable, }; static const struct regulator_desc rk808_reg[] = { |