diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 11 | ||||
| -rw-r--r-- | drivers/regulator/helpers.c | 23 | ||||
| -rw-r--r-- | drivers/regulator/of_regulator.c | 6 |
3 files changed, 40 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 744c9889f88d..7ebb7c899158 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1140,6 +1140,17 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } + if (rdev->constraints->active_discharge && ops->set_active_discharge) { + bool ad_state = (rdev->constraints->active_discharge == + REGULATOR_ACTIVE_DISCHARGE_ENABLE) ? true : false; + + ret = ops->set_active_discharge(rdev, ad_state); + if (ret < 0) { + rdev_err(rdev, "failed to set active discharge\n"); + return ret; + } + } + print_constraints(rdev); return 0; out: diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index 3bbb32680a94..b1e32e7482e9 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -465,3 +465,26 @@ int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) return 0; } EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap); + +/** + * regulator_set_active_discharge_regmap - Default set_active_discharge() + * using regmap + * + * @rdev: device to operate on. + * @enable: state to set, 0 to disable and 1 to enable. + */ +int regulator_set_active_discharge_regmap(struct regulator_dev *rdev, + bool enable) +{ + unsigned int val; + + if (enable) + val = rdev->desc->active_discharge_on; + else + val = rdev->desc->active_discharge_off; + + return regmap_update_bits(rdev->regmap, + rdev->desc->active_discharge_reg, + rdev->desc->active_discharge_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_set_active_discharge_regmap); diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 499e437c7e91..fe2e33441dae 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -93,6 +93,12 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->soft_start = of_property_read_bool(np, "regulator-soft-start"); + ret = of_property_read_u32(np, "regulator-active-discharge", &pval); + if (!ret) { + constraints->active_discharge = + (pval) ? REGULATOR_ACTIVE_DISCHARGE_ENABLE : + REGULATOR_ACTIVE_DISCHARGE_DISABLE; + } if (!of_property_read_u32(np, "regulator-initial-mode", &pval)) { if (desc && desc->of_map_mode) { |