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| author | Owen_Ou <Owen_Ou@compal.corp-partner.google.com> | 2021-09-02 10:21:04 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-11-19 01:35:47 +0000 |
| commit | d9e9d0b3e3cb8dad472399aa8acf3c2bc8ef21a0 (patch) | |
| tree | e7bae4c7c9fe1cbda17a572f839f9bfe3fab166a | |
| parent | e8525e71c121e25b97ac8d107a881ee64f5f8a45 (diff) | |
| download | chrome-ec-d9e9d0b3e3cb8dad472399aa8acf3c2bc8ef21a0.tar.gz | |
felwinter: fan turn high and low momentary in G3 and DC only
To turn the fan during deep sleep, you need to set pwm_config_dsleep
and lower the frequency.
The original frequency of 25000 cannot make pwm need at least two
cycles,so it is changed to 1000 (recommended by nuvaton).
BUG=b:198371480
BRANCH=none
TEST=make -j BOARD=felwinter and flash ec.bin to brya p2 and
Observe whether the fan turn high and low momentary in G3 and DC only.
Signed-off-by: Owen_Ou <Owen_Ou@compal.corp-partner.google.com>
Change-Id: I9fa29a21b2c5de17ed98b1af479a4b154ab60d6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3139616
Tested-by: Owen Ou <owen_ou@compal.corp-partner.google.com>
Auto-Submit: Owen Ou <owen_ou@compal.corp-partner.google.com>
Reviewed-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
Reviewed-by: YH Lin <yueherngl@chromium.org>
Reviewed-by: Boris Mittelberg <bmbm@google.com>
Commit-Queue: Boris Mittelberg <bmbm@google.com>
| -rw-r--r-- | board/felwinter/pwm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/felwinter/pwm.c b/board/felwinter/pwm.c index 985305449b..1312135a2c 100644 --- a/board/felwinter/pwm.c +++ b/board/felwinter/pwm.c @@ -24,8 +24,8 @@ const struct pwm_t pwm_channels[] = { }, [PWM_CH_FAN] = { .channel = 5, - .flags = PWM_CONFIG_OPEN_DRAIN, - .freq = 25000 + .flags = PWM_CONFIG_OPEN_DRAIN | PWM_CONFIG_DSLEEP, + .freq = 1000 }, }; BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); |