Commit c5bb725a authored by Steffen Trumtrar's avatar Steffen Trumtrar Committed by Mark Brown

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: default avatarSteffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
parent 7d1311b9
...@@ -372,6 +372,7 @@ static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg) ...@@ -372,6 +372,7 @@ static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg)
switch (reg) { switch (reg) {
case LTC3589_IRQSTAT: case LTC3589_IRQSTAT:
case LTC3589_PGSTAT: case LTC3589_PGSTAT:
case LTC3589_VCCR:
return true; return true;
} }
return false; return false;
......
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