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| author | johnwc_yeh <johnwc_yeh@compal.corp-partner.google.com> | 2021-01-04 14:46:53 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-01-06 19:58:37 +0000 |
| commit | 88ad210827674e3102d346ed40c9e674a1bf65f1 (patch) | |
| tree | afe17d82acedaf2af1ea7d9ac1538f16f4dda0d7 /board/pompom | |
| parent | bf7371fdbe79a2f2424fc9b98ab0052454442c07 (diff) | |
| download | chrome-ec-88ad210827674e3102d346ed40c9e674a1bf65f1.tar.gz | |
pompom: change panel blacklight PWM frequency
Noise is related with LCD Panel and Brightness PWM.
Change panel blacklight PWM frequency to 200Hz.
BUG=b:175795667
BRANCH=none
TEST=Boot into OS can not hear the noise.
Signed-off-by: johnwc_yeh <johnwc_yeh@compal.corp-partner.google.com>
Change-Id: Iac1789dcc58beb9f4fa3eb006f9b4ff39d0c9a71
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2607220
Tested-by: Josh Tsai <josh_tsai@compal.corp-partner.google.com>
Reviewed-by: Josh Tsai <josh_tsai@compal.corp-partner.google.com>
Reviewed-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
Reviewed-by: Wai-Hong Tam <waihong@google.com>
Commit-Queue: Wai-Hong Tam <waihong@google.com>
Diffstat (limited to 'board/pompom')
| -rw-r--r-- | board/pompom/board.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/board/pompom/board.c b/board/pompom/board.c index e91ff082c4..e8ebf5d4a8 100644 --- a/board/pompom/board.c +++ b/board/pompom/board.c @@ -179,7 +179,7 @@ BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); const struct pwm_t pwm_channels[] = { [PWM_CH_KBLIGHT] = { .channel = 3, .flags = 0, .freq = 10000 }, /* TODO(waihong): Assign a proper frequency. */ - [PWM_CH_DISPLIGHT] = { .channel = 5, .flags = 0, .freq = 4800 }, + [PWM_CH_DISPLIGHT] = { .channel = 5, .flags = 0, .freq = 200 }, }; BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); |