diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index c347fd03b727..7ec2ed6a1d7b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2185,8 +2185,11 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, best_val = rdev->desc->ops->list_voltage(rdev, ret); if (min_uV <= best_val && max_uV >= best_val) { selector = ret; - ret = rdev->desc->ops->set_voltage_sel(rdev, - ret); + if (old_selector == selector) + ret = 0; + else + ret = rdev->desc->ops->set_voltage_sel( + rdev, ret); } else { ret = -EINVAL; } @@ -2197,7 +2200,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, /* Call set_voltage_time_sel if successfully obtained old_selector */ if (ret == 0 && _regulator_is_enabled(rdev) && old_selector >= 0 && - rdev->desc->ops->set_voltage_time_sel) { + old_selector != selector && rdev->desc->ops->set_voltage_time_sel) { delay = rdev->desc->ops->set_voltage_time_sel(rdev, old_selector, selector); |