diff options
| author | Axel Lin <axel.lin@ingics.com> | 2013-04-09 16:15:06 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 18:08:22 +0400 |
| commit | f04adc5ab3b70ad9b7d17d6a6fc2113669134a4d (patch) | |
| tree | e2d2abca0f6de8060440b49799de66c448d0325b /drivers/regulator/ab8500.c | |
| parent | 241896ce8d112f10dae5538be41fad9eeb9e5e46 (diff) | |
| download | linux-f04adc5ab3b70ad9b7d17d6a6fc2113669134a4d.tar.xz | |
regulator: ab8500: Don't update info->update_val if write to register fails
This patch ensures info->update_val is consistent with current register value.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/ab8500.c')
| -rw-r--r-- | drivers/regulator/ab8500.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index 29a727ca399b..5fd3b34274cc 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -392,9 +392,8 @@ static int ab8500_regulator_set_mode(struct regulator_dev *rdev, val = info->mode_val_idle; break; default: - if (info->shared_mode) - mutex_unlock(&shared_mode_mutex); - return -EINVAL; + ret = -EINVAL; + goto out_unlock; } bank = info->mode_bank; @@ -405,17 +404,14 @@ static int ab8500_regulator_set_mode(struct regulator_dev *rdev, switch (mode) { case REGULATOR_MODE_NORMAL: - info->update_val = info->update_val_normal; val = info->update_val_normal; break; case REGULATOR_MODE_IDLE: - info->update_val = info->update_val_idle; val = info->update_val_idle; break; default: - if (info->shared_mode) - mutex_unlock(&shared_mode_mutex); - return -EINVAL; + ret = -EINVAL; + goto out_unlock; } bank = info->update_bank; @@ -426,9 +422,11 @@ static int ab8500_regulator_set_mode(struct regulator_dev *rdev, if (dmr || ab8500_regulator_is_enabled(rdev)) { ret = abx500_mask_and_set_register_interruptible(info->dev, bank, reg, mask, val); - if (ret < 0) + if (ret < 0) { dev_err(rdev_get_dev(rdev), "couldn't set regulator mode\n"); + goto out_unlock; + } dev_vdbg(rdev_get_dev(rdev), "%s-set_mode (bank, reg, mask, value): " @@ -437,6 +435,10 @@ static int ab8500_regulator_set_mode(struct regulator_dev *rdev, mask, val); } + if (!dmr) + info->update_val = val; + +out_unlock: if (info->shared_mode) mutex_unlock(&shared_mode_mutex); |