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path: root/drivers/regulator
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Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c83
1 files changed, 38 insertions, 45 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index d3be67e18519..7d0c0d7d90ca 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -66,6 +66,16 @@ static unsigned int _regulator_get_mode(struct regulator_dev *rdev);
static void _notifier_call_chain(struct regulator_dev *rdev,
unsigned long event, void *data);
+static const char *rdev_get_name(struct regulator_dev *rdev)
+{
+ if (rdev->constraints && rdev->constraints->name)
+ return rdev->constraints->name;
+ else if (rdev->desc->name)
+ return rdev->desc->name;
+ else
+ return "";
+}
+
/* gets the regulator for a given consumer device */
static struct regulator *get_device_regulator(struct device *dev)
{
@@ -96,12 +106,12 @@ static int regulator_check_voltage(struct regulator_dev *rdev,
if (!rdev->constraints) {
printk(KERN_ERR "%s: no constraints for %s\n", __func__,
- rdev->desc->name);
+ rdev_get_name(rdev));
return -ENODEV;
}
if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
printk(KERN_ERR "%s: operation not allowed for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return -EPERM;
}
@@ -124,12 +134,12 @@ static int regulator_check_current_limit(struct regulator_dev *rdev,
if (!rdev->constraints) {
printk(KERN_ERR "%s: no constraints for %s\n", __func__,
- rdev->desc->name);
+ rdev_get_name(rdev));
return -ENODEV;
}
if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_CURRENT)) {
printk(KERN_ERR "%s: operation not allowed for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return -EPERM;
}
@@ -159,17 +169,17 @@ static int regulator_check_mode(struct regulator_dev *rdev, int mode)
if (!rdev->constraints) {
printk(KERN_ERR "%s: no constraints for %s\n", __func__,
- rdev->desc->name);
+ rdev_get_name(rdev));
return -ENODEV;
}
if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_MODE)) {
printk(KERN_ERR "%s: operation not allowed for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return -EPERM;
}
if (!(rdev->constraints->valid_modes_mask & mode)) {
printk(KERN_ERR "%s: invalid mode %x for %s\n",
- __func__, mode, rdev->desc->name);
+ __func__, mode, rdev_get_name(rdev));
return -EINVAL;
}
return 0;
@@ -180,12 +190,12 @@ static int regulator_check_drms(struct regulator_dev *rdev)
{
if (!rdev->constraints) {
printk(KERN_ERR "%s: no constraints for %s\n", __func__,
- rdev->desc->name);
+ rdev_get_name(rdev));
return -ENODEV;
}
if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS)) {
printk(KERN_ERR "%s: operation not allowed for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return -EPERM;
}
return 0;
@@ -230,16 +240,8 @@ static ssize_t regulator_name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
- const char *name;
- if (rdev->constraints && rdev->constraints->name)
- name = rdev->constraints->name;
- else if (rdev->desc->name)
- name = rdev->desc->name;
- else
- name = "";
-
- return sprintf(buf, "%s\n", name);
+ return sprintf(buf, "%s\n", rdev_get_name(rdev));
}
static ssize_t regulator_print_opmode(char *buf, int mode)
@@ -687,13 +689,14 @@ static void print_constraints(struct regulator_dev *rdev)
if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
count += sprintf(buf + count, "standby");
- printk(KERN_INFO "regulator: %s: %s\n", rdev->desc->name, buf);
+ printk(KERN_INFO "regulator: %s: %s\n", rdev_get_name(rdev), buf);
}
static int machine_constraints_voltage(struct regulator_dev *rdev,
- const char *name, struct regulation_constraints *constraints)
+ struct regulation_constraints *constraints)
{
struct regulator_ops *ops = rdev->desc->ops;
+ const char *name = rdev_get_name(rdev);
int ret;
/* do we need to apply the constraint voltage */
@@ -800,16 +803,11 @@ static int set_machine_constraints(struct regulator_dev *rdev,
const char *name;
struct regulator_ops *ops = rdev->desc->ops;
- if (constraints->name)
- name = constraints->name;
- else if (rdev->desc->name)
- name = rdev->desc->name;
- else
- name = "regulator";
-
rdev->constraints = constraints;
- ret = machine_constraints_voltage(rdev, name, constraints);
+ name = rdev_get_name(rdev);
+
+ ret = machine_constraints_voltage(rdev, constraints);
if (ret != 0)
goto out;
@@ -932,7 +930,7 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
dev_name(&node->regulator->dev),
node->regulator->desc->name,
supply,
- dev_name(&rdev->dev), rdev->desc->name);
+ dev_name(&rdev->dev), rdev_get_name(rdev));
return -EBUSY;
}
@@ -1241,7 +1239,7 @@ static int _regulator_enable(struct regulator_dev *rdev)
ret = _regulator_enable(rdev->supply);
if (ret < 0) {
printk(KERN_ERR "%s: failed to enable %s: %d\n",
- __func__, rdev->desc->name, ret);
+ __func__, rdev_get_name(rdev), ret);
return ret;
}
}
@@ -1267,7 +1265,7 @@ static int _regulator_enable(struct regulator_dev *rdev)
}
} else if (ret < 0) {
printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n",
- __func__, rdev->desc->name, ret);
+ __func__, rdev_get_name(rdev), ret);
return ret;
}
/* Fallthrough on positive return values - already enabled */
@@ -1308,7 +1306,7 @@ static int _regulator_disable(struct regulator_dev *rdev)
if (WARN(rdev->use_count <= 0,
"unbalanced disables for %s\n",
- rdev->desc->name))
+ rdev_get_name(rdev)))
return -EIO;
/* are we the last user and permitted to disable ? */
@@ -1321,7 +1319,7 @@ static int _regulator_disable(struct regulator_dev *rdev)
ret = rdev->desc->ops->disable(rdev);
if (ret < 0) {
printk(KERN_ERR "%s: failed to disable %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return ret;
}
}
@@ -1378,7 +1376,7 @@ static int _regulator_force_disable(struct regulator_dev *rdev)
ret = rdev->desc->ops->disable(rdev);
if (ret < 0) {
printk(KERN_ERR "%s: failed to force disable %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
return ret;
}
/* notify other consumers that power has been forced off */
@@ -1795,7 +1793,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
output_uV = rdev->desc->ops->get_voltage(rdev);
if (output_uV <= 0) {
printk(KERN_ERR "%s: invalid output voltage found for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
goto out;
}
@@ -1806,7 +1804,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
input_uV = rdev->constraints->input_uV;
if (input_uV <= 0) {
printk(KERN_ERR "%s: invalid input voltage found for %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
goto out;
}
@@ -1820,7 +1818,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
ret = regulator_check_mode(rdev, mode);
if (ret < 0) {
printk(KERN_ERR "%s: failed to get optimum mode for %s @"
- " %d uA %d -> %d uV\n", __func__, rdev->desc->name,
+ " %d uA %d -> %d uV\n", __func__, rdev_get_name(rdev),
total_uA_load, input_uV, output_uV);
goto out;
}
@@ -1828,7 +1826,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
ret = rdev->desc->ops->set_mode(rdev, mode);
if (ret < 0) {
printk(KERN_ERR "%s: failed to set optimum mode %x for %s\n",
- __func__, mode, rdev->desc->name);
+ __func__, mode, rdev_get_name(rdev));
goto out;
}
ret = mode;
@@ -2346,7 +2344,7 @@ int regulator_suspend_prepare(suspend_state_t state)
if (ret < 0) {
printk(KERN_ERR "%s: failed to prepare %s\n",
- __func__, rdev->desc->name);
+ __func__, rdev_get_name(rdev));
goto out;
}
}
@@ -2459,12 +2457,7 @@ static int __init regulator_init_complete(void)
ops = rdev->desc->ops;
c = rdev->constraints;
- if (c && c->name)
- name = c->name;
- else if (rdev->desc->name)
- name = rdev->desc->name;
- else
- name = "regulator";
+ name = rdev_get_name(rdev);
if (!ops->disable || (c && c->always_on))
continue;
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-07 16:14:47 +0000