diff options
Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r-- | drivers/regulator/core.c | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index fd0e4e37f4e1..6af38691ec48 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -906,7 +906,8 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, /* do we need to apply the constraint voltage */ if (rdev->constraints->apply_uV && - rdev->constraints->min_uV == rdev->constraints->max_uV) { + rdev->constraints->min_uV && rdev->constraints->max_uV) { + int target_min, target_max; int current_uV = _regulator_get_voltage(rdev); if (current_uV < 0) { rdev_err(rdev, @@ -914,15 +915,32 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, current_uV); return current_uV; } - if (current_uV < rdev->constraints->min_uV || - current_uV > rdev->constraints->max_uV) { + + /* + * If we're below the minimum voltage move up to the + * minimum voltage, if we're above the maximum voltage + * then move down to the maximum. + */ + target_min = current_uV; + target_max = current_uV; + + if (current_uV < rdev->constraints->min_uV) { + target_min = rdev->constraints->min_uV; + target_max = rdev->constraints->min_uV; + } + + if (current_uV > rdev->constraints->max_uV) { + target_min = rdev->constraints->max_uV; + target_max = rdev->constraints->max_uV; + } + + if (target_min != current_uV || target_max != current_uV) { ret = _regulator_do_set_voltage( - rdev, rdev->constraints->min_uV, - rdev->constraints->max_uV); + rdev, target_min, target_max); if (ret < 0) { rdev_err(rdev, - "failed to apply %duV constraint(%d)\n", - rdev->constraints->min_uV, ret); + "failed to apply %d-%duV constraint(%d)\n", + target_min, target_max, ret); return ret; } } @@ -1150,17 +1168,6 @@ 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; } @@ -4041,8 +4048,8 @@ void regulator_unregister(struct regulator_dev *rdev) WARN_ON(rdev->open_count); unset_regulator_supplies(rdev); list_del(&rdev->list); - mutex_unlock(®ulator_list_mutex); regulator_ena_gpio_free(rdev); + mutex_unlock(®ulator_list_mutex); device_unregister(&rdev->dev); } EXPORT_SYMBOL_GPL(regulator_unregister); |