diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index d886ee265e4..a8088662623 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1890,8 +1890,18 @@ EXPORT_SYMBOL_GPL(regulator_list_voltage); int regulator_is_supported_voltage(struct regulator *regulator, int min_uV, int max_uV) { + struct regulator_dev *rdev = regulator->rdev; int i, voltages, ret; + /* If we can't change voltage check the current voltage */ + if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { + ret = regulator_get_voltage(regulator); + if (ret >= 0) + return (min_uV >= ret && ret <= max_uV); + else + return ret; + } + ret = regulator_count_voltages(regulator); if (ret < 0) return ret; |