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| author | Andrew McRae <amcrae@google.com> | 2020-02-04 16:29:01 +1100 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-05 11:37:32 +0000 |
| commit | 69cb58587af634dea9bd349fbc4c35ba639e2f3f (patch) | |
| tree | 5ab36ecd30eaa7dadb1c84d510c4c30d6b5ea466 /common/fan.c | |
| parent | 91c0e7272f8b0838057f8b83df1d970635185bb6 (diff) | |
| download | chrome-ec-69cb58587af634dea9bd349fbc4c35ba639e2f3f.tar.gz | |
ec fan: Ensure AP is on before starting fan.
The HOOK_CHIPSET_RESET hook is called both on AP shutdown and startup,
so do not start fan unless the AP is being turned on.
BRANCH=none
BUG=b:146583266
TEST=Verified on puff
Signed-off-by: Andrew McRae <amcrae@google.com>
Change-Id: I2c5ae87245e260718c3fa9a979d0a1c3a0c0dd00
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1977066
Tested-by: Andrew McRae <amcrae@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Commit-Queue: Andrew McRae <amcrae@chromium.org>
Diffstat (limited to 'common/fan.c')
| -rw-r--r-- | common/fan.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/common/fan.c b/common/fan.c index c91fa1b318..669ddc519d 100644 --- a/common/fan.c +++ b/common/fan.c @@ -6,6 +6,7 @@ /* Basic Chrome OS fan control */ #include "assert.h" +#include "chipset.h" #include "common.h" #include "console.h" #include "fan.h" @@ -606,7 +607,11 @@ static void pwm_fan_start(void) * Upon booting to S0, if needed AP will disable/throttle it using * host commands. */ - pwm_fan_control(1); + if (chipset_in_or_transitioning_to_state(CHIPSET_STATE_ON)) + pwm_fan_control(1); } +/* On Fizz, CHIPSET_RESUME isn't triggered when AP warm resets. + * So we hook CHIPSET_RESET instead. + */ DECLARE_HOOK(HOOK_CHIPSET_RESET, pwm_fan_start, HOOK_PRIO_FIRST); DECLARE_HOOK(HOOK_CHIPSET_RESUME, pwm_fan_start, HOOK_PRIO_DEFAULT); |