diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2016-03-02 16:24:46 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-03-02 23:13:05 +0900 |
| commit | 670666b9e0aff40c65d8061a2f53e79eee238685 (patch) | |
| tree | 04660dbf7aa36d14372c31d58a6647af77c94415 /drivers/regulator | |
| parent | bd667d40a999e35c270e424b6d550410cb2c6d06 (diff) | |
| download | linux-670666b9e0aff40c65d8061a2f53e79eee238685.tar.bz2 | |
regulator: core: Add support for active-discharge configuration
Add support to enable/disable active discharge of regulator via
machine constraints. This configuration is done when setting
machine constraint during regulator register and if regulator
driver implemented the callback ops.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 11 | ||||
| -rw-r--r-- | drivers/regulator/of_regulator.c | 6 |
2 files changed, 17 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/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) { |