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| author |   Axel Lin <axel.lin@ingics.com> | 2015-01-24 12:01:12 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2015-01-26 19:11:35 +0000 |
| commit | c6515d2f00dc45d6bf5b6e56c9a7d4dc2e271563 (patch) | |
| tree | f6f44a8baa061f56d1cfcbf65bd30fb86a3a9df3 /drivers/regulator/qcom_rpm-regulator.c | |
| parent | Linux 3.19-rc1 (diff) | |
| download | linux-dev-c6515d2f00dc45d6bf5b6e56c9a7d4dc2e271563.tar.xz linux-dev-c6515d2f00dc45d6bf5b6e56c9a7d4dc2e271563.zip | |
regulator: qcom_rpm: Don't update vreg->uV/mV if rpm_reg_write fails
Ensure get_voltage return correct voltage if set_voltage fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/qcom_rpm-regulator.c')
| -rw-r--r-- | drivers/regulator/qcom_rpm-regulator.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index 8364ff331a81..95099e6bfce3 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -227,9 +227,11 @@ static int rpm_reg_set_mV_sel(struct regulator_dev *rdev, return uV; mutex_lock(&vreg->lock); - vreg->uV = uV; if (vreg->is_enabled) - ret = rpm_reg_write(vreg, req, vreg->uV / 1000); + ret = rpm_reg_write(vreg, req, uV / 1000); + + if (!ret) + vreg->uV = uV; mutex_unlock(&vreg->lock); return ret; @@ -252,9 +254,11 @@ static int rpm_reg_set_uV_sel(struct regulator_dev *rdev, return uV; mutex_lock(&vreg->lock); - vreg->uV = uV; if (vreg->is_enabled) - ret = rpm_reg_write(vreg, req, vreg->uV); + ret = rpm_reg_write(vreg, req, uV); + + if (!ret) + vreg->uV = uV; mutex_unlock(&vreg->lock); return ret; |