aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/regulator/core.c30
1 files changed, 8 insertions, 22 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 019a8a42ac1..944887578d6 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -52,7 +52,6 @@ struct regulator {
int uA_load;
int min_uV;
int max_uV;
- int enabled; /* count of client enables */
char *supply_name;
struct device_attribute dev_attr;
struct regulator_dev *rdev;
@@ -815,6 +814,7 @@ static int set_machine_constraints(struct regulator_dev *rdev,
rdev->constraints = NULL;
goto out;
}
+ rdev->use_count = 1;
}
print_constraints(rdev);
@@ -1068,10 +1068,6 @@ void regulator_put(struct regulator *regulator)
mutex_lock(&regulator_list_mutex);
rdev = regulator->rdev;
- if (WARN(regulator->enabled, "Releasing supply %s while enabled\n",
- regulator->supply_name))
- _regulator_disable(rdev);
-
/* remove any sysfs entries */
if (regulator->dev) {
sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
@@ -1146,12 +1142,7 @@ int regulator_enable(struct regulator *regulator)
int ret = 0;
mutex_lock(&rdev->mutex);
- if (regulator->enabled == 0)
- ret = _regulator_enable(rdev);
- else if (regulator->enabled < 0)
- ret = -EIO;
- if (ret == 0)
- regulator->enabled++;
+ ret = _regulator_enable(rdev);
mutex_unlock(&rdev->mutex);
return ret;
}
@@ -1162,6 +1153,11 @@ static int _regulator_disable(struct regulator_dev *rdev)
{
int ret = 0;
+ if (WARN(rdev->use_count <= 0,
+ "unbalanced disables for %s\n",
+ rdev->desc->name))
+ return -EIO;
+
/* are we the last user and permitted to disable ? */
if (rdev->use_count == 1 && !rdev->constraints->always_on) {
@@ -1210,16 +1206,7 @@ int regulator_disable(struct regulator *regulator)
int ret = 0;
mutex_lock(&rdev->mutex);
- if (regulator->enabled == 1) {
- ret = _regulator_disable(rdev);
- if (ret == 0)
- regulator->uA_load = 0;
- } else if (WARN(regulator->enabled <= 0,
- "unbalanced disables for supply %s\n",
- regulator->supply_name))
- ret = -EIO;
- if (ret == 0)
- regulator->enabled--;
+ ret = _regulator_disable(rdev);
mutex_unlock(&rdev->mutex);
return ret;
}
@@ -1266,7 +1253,6 @@ int regulator_force_disable(struct regulator *regulator)
int ret;
mutex_lock(&regulator->rdev->mutex);
- regulator->enabled = 0;
regulator->uA_load = 0;
ret = _regulator_force_disable(regulator->rdev);
mutex_unlock(&regulator->rdev->mutex);