|
@@ -676,6 +676,22 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
|
|
|
const char *name, struct regulation_constraints *constraints)
|
|
|
{
|
|
|
struct regulator_ops *ops = rdev->desc->ops;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ /* do we need to apply the constraint voltage */
|
|
|
+ if (rdev->constraints->apply_uV &&
|
|
|
+ rdev->constraints->min_uV == rdev->constraints->max_uV &&
|
|
|
+ ops->set_voltage) {
|
|
|
+ ret = ops->set_voltage(rdev,
|
|
|
+ rdev->constraints->min_uV, rdev->constraints->max_uV);
|
|
|
+ if (ret < 0) {
|
|
|
+ printk(KERN_ERR "%s: failed to apply %duV constraint to %s\n",
|
|
|
+ __func__,
|
|
|
+ rdev->constraints->min_uV, name);
|
|
|
+ rdev->constraints = NULL;
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
/* constrain machine-level voltage specs to fit
|
|
|
* the actual range supported by this regulator.
|
|
@@ -773,27 +789,12 @@ static int set_machine_constraints(struct regulator_dev *rdev,
|
|
|
else
|
|
|
name = "regulator";
|
|
|
|
|
|
+ rdev->constraints = constraints;
|
|
|
+
|
|
|
ret = machine_constraints_voltage(rdev, name, constraints);
|
|
|
if (ret != 0)
|
|
|
goto out;
|
|
|
|
|
|
- rdev->constraints = constraints;
|
|
|
-
|
|
|
- /* do we need to apply the constraint voltage */
|
|
|
- if (rdev->constraints->apply_uV &&
|
|
|
- rdev->constraints->min_uV == rdev->constraints->max_uV &&
|
|
|
- ops->set_voltage) {
|
|
|
- ret = ops->set_voltage(rdev,
|
|
|
- rdev->constraints->min_uV, rdev->constraints->max_uV);
|
|
|
- if (ret < 0) {
|
|
|
- printk(KERN_ERR "%s: failed to apply %duV constraint to %s\n",
|
|
|
- __func__,
|
|
|
- rdev->constraints->min_uV, name);
|
|
|
- rdev->constraints = NULL;
|
|
|
- goto out;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
/* do we need to setup our suspend state */
|
|
|
if (constraints->initial_state) {
|
|
|
ret = suspend_prepare(rdev, constraints->initial_state);
|