kybaaz/linux-xiaomi-chiron
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mfd: arizona: Add better support for system suspend

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Allow the chip to completely power off if we enter runtime suspend and
there is no jack detection active. This is helpful for systems where
system suspend might remove the supplies to the CODEC, without informing
us. Note the powering off is done in runtime suspend rather than system
suspend, because we need to hold reset until the first time DCVDD is
powered anyway (which would be in runtime resume), and we might as well
save the extra power.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Charles Keepax 2015-05-11 13:58:09 +01:00 • committed by Lee Jones
parent 96129a0eaa
commit e6cb73410a
2 changed files with 78 additions and 16 deletions
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include/linux/mfd/arizona/core.h
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@ -117,6 +117,7 @@ struct arizona {
int num_core_supplies;
struct regulator_bulk_data core_supplies[ARIZONA_MAX_CORE_SUPPLIES];
struct regulator *dcvdd;
bool has_fully_powered_off;
struct arizona_pdata pdata;