diff options
| author | Mark Brown | 2012-08-09 17:42:19 +0200 |
|---|---|---|
| committer | Mark Brown | 2012-08-09 20:48:27 +0200 |
| commit | f7df20ec323009bd2ea8e1c65f11bb43fd526c4f (patch) | |
| tree | c6cd62c2219c47e2929208ee44cb7db8424fbfba /drivers/regulator/core.c | |
| parent | regulator: make the dummy regulator's print_constraint more helpful (diff) | |
| download | kernel-qcow2-linux-f7df20ec323009bd2ea8e1c65f11bb43fd526c4f.tar.gz kernel-qcow2-linux-f7df20ec323009bd2ea8e1c65f11bb43fd526c4f.tar.xz kernel-qcow2-linux-f7df20ec323009bd2ea8e1c65f11bb43fd526c4f.zip | |
regulator: core: Use list_voltage() to read single voltage regulators
If the regulator doesn't supply a way of reading back the voltage but does
provide a list_voltage() operation then use that with a selector of zero
to read the voltage. Regulators doing this means that we have the list
operation there for consumers that want to configure themselves.
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/core.c')
| -rw-r--r-- | drivers/regulator/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 157def15ed78..ff8f54447305 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2395,6 +2395,8 @@ static int _regulator_get_voltage(struct regulator_dev *rdev) ret = rdev->desc->ops->list_voltage(rdev, sel); } else if (rdev->desc->ops->get_voltage) { ret = rdev->desc->ops->get_voltage(rdev); + } else if (rdev->desc->ops->list_voltage) { + ret = rdev->desc->ops->list_voltage(rdev, 0); } else { return -EINVAL; } |