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path: root/drivers/regulator/core.c
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Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r--drivers/regulator/core.c56
1 files changed, 30 insertions, 26 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 34d3d8281..c8702011b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2925,7 +2925,8 @@ static int _regulator_enable(struct regulator *regulator)
/* Fallthrough on positive return values - already enabled */
}
- rdev->use_count++;
+ if (regulator->enable_count == 1)
+ rdev->use_count++;
return 0;
@@ -3000,37 +3001,40 @@ static int _regulator_disable(struct regulator *regulator)
lockdep_assert_held_once(&rdev->mutex.base);
- if (WARN(rdev->use_count <= 0,
+ if (WARN(regulator->enable_count == 0,
"unbalanced disables for %s\n", rdev_get_name(rdev)))
return -EIO;
- /* are we the last user and permitted to disable ? */
- if (rdev->use_count == 1 &&
- (rdev->constraints && !rdev->constraints->always_on)) {
-
- /* we are last user */
- if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS)) {
- ret = _notifier_call_chain(rdev,
- REGULATOR_EVENT_PRE_DISABLE,
- NULL);
- if (ret & NOTIFY_STOP_MASK)
- return -EINVAL;
-
- ret = _regulator_do_disable(rdev);
- if (ret < 0) {
- rdev_err(rdev, "failed to disable: %pe\n", ERR_PTR(ret));
- _notifier_call_chain(rdev,
- REGULATOR_EVENT_ABORT_DISABLE,
+ if (regulator->enable_count == 1) {
+ /* disabling last enable_count from this regulator */
+ /* are we the last user and permitted to disable ? */
+ if (rdev->use_count == 1 &&
+ (rdev->constraints && !rdev->constraints->always_on)) {
+
+ /* we are last user */
+ if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS)) {
+ ret = _notifier_call_chain(rdev,
+ REGULATOR_EVENT_PRE_DISABLE,
+ NULL);
+ if (ret & NOTIFY_STOP_MASK)
+ return -EINVAL;
+
+ ret = _regulator_do_disable(rdev);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to disable: %pe\n", ERR_PTR(ret));
+ _notifier_call_chain(rdev,
+ REGULATOR_EVENT_ABORT_DISABLE,
+ NULL);
+ return ret;
+ }
+ _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
NULL);
- return ret;
}
- _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
- NULL);
- }
- rdev->use_count = 0;
- } else if (rdev->use_count > 1) {
- rdev->use_count--;
+ rdev->use_count = 0;
+ } else if (rdev->use_count > 1) {
+ rdev->use_count--;
+ }
}
if (ret == 0)