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| author | Steffen Trumtrar <s.trumtrar@pengutronix.de> | 2014-09-25 18:39:11 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-09-26 12:22:50 +0400 |
| commit | c5bb725ac2d1a13e9e766bf9a16bac986ade17cd (patch) | |
| tree | 19ef6310d6ca31ad0d16e4c17d58fbe0c2f62e33 | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | linux-c5bb725ac2d1a13e9e766bf9a16bac986ade17cd.tar.xz | |
regulator: ltc3589: fix broken voltage transitions
VCCR is used as a trigger to start voltage transitions, so
we need to mark it volatile in order to make sure it gets
written to hardware every time we set a new voltage.
Fixes regulator voltage being stuck at the first voltage
set after driver load.
[lst: reworded commit message]
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/regulator/ltc3589.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index c756955bfcc5..0ce8e4e0fa73 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -372,6 +372,7 @@ static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg) switch (reg) { case LTC3589_IRQSTAT: case LTC3589_PGSTAT: + case LTC3589_VCCR: return true; } return false; |