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| author | Caveh Jalali <caveh@chromium.org> | 2021-02-25 18:30:33 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-03-04 21:31:32 +0000 |
| commit | 503826bfe1ae70ca020b35ca32848da85f25b1ef (patch) | |
| tree | dcb18d8497cab8a1aa34145ae13a31f205581975 /board/brya/pwm.c | |
| parent | 92a4dfc5fcb5600a3299e390269939d733afdd6c (diff) | |
| download | chrome-ec-503826bfe1ae70ca020b35ca32848da85f25b1ef.tar.gz | |
brya: Use fixed fan speeds
This sets the fan speed based on SoC power state. If the AP is off, run
the fan at 33%. If the AP is on, run the fan at 100%. Our sensors are
not yet calibrated and we don't have confirmed thermal thresholds for
the SoC, so just keep the fan running at full speed when the AP is
running.
BRANCH=none
BUG=b:179975706,b:180681346,b:181271666
TEST=fan is slow before AP boots, then speeds up as soon as AP starts
Change-Id: Id10e1510496d94bd3cc8ea70e4661c52d15fe9ed
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2722552
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Sooraj Govindan <sooraj.govindan@intel.com>
Diffstat (limited to 'board/brya/pwm.c')
| -rw-r--r-- | board/brya/pwm.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/board/brya/pwm.c b/board/brya/pwm.c index 3e8df2a85f..a6b65b038c 100644 --- a/board/brya/pwm.c +++ b/board/brya/pwm.c @@ -66,8 +66,5 @@ static void board_pwm_init(void) pwm_enable(PWM_CH_KBLIGHT, 1); pwm_set_duty(PWM_CH_KBLIGHT, 50); - - pwm_enable(PWM_CH_FAN, 1); - pwm_set_duty(PWM_CH_FAN, 100); } DECLARE_HOOK(HOOK_INIT, board_pwm_init, HOOK_PRIO_DEFAULT); |