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| author | Sue Chen <sue.chen@quanta.corp-partner.google.com> | 2020-08-25 14:34:51 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-08-26 04:43:01 +0000 |
| commit | 528ad7dfe28718dee3739a0ac8ab325f6d1b59d6 (patch) | |
| tree | 2b62eacaca4742457e7700dbe5c1eb33b0b827ad /board/ezkinil/board.c | |
| parent | 9b9de8217b14b7259afd34d8544678a3f41d4f02 (diff) | |
| download | chrome-ec-528ad7dfe28718dee3739a0ac8ab325f6d1b59d6.tar.gz | |
Ezkinil: pull HDMI_DATA_EN_DB low at suspend
HDMI EA 7-3 test fail because HDMI_DATA_EN_DB floating in S3/S5
cause 0.7V leakage. Therefore, pull HDMI_DATA_EN_DB low at suspend
and pull high when the system enter S0.
BUG=b:158062907
BRANCH=zork
TEST=make sure that fix 0.7V leakage
Signed-off-by: Sue Chen <sue.chen@quanta.corp-partner.google.com>
Change-Id: I6e3e0f26f63a707670c270c522c3598dc0104a13
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2373851
Reviewed-by: Edward Hill <ecgh@chromium.org>
Commit-Queue: Edward Hill <ecgh@chromium.org>
Diffstat (limited to 'board/ezkinil/board.c')
| -rw-r--r-- | board/ezkinil/board.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/board/ezkinil/board.c b/board/ezkinil/board.c index 2ccf333b65..558f26b216 100644 --- a/board/ezkinil/board.c +++ b/board/ezkinil/board.c @@ -465,6 +465,7 @@ static void board_chipset_resume(void) if (ec_config_has_hdmi_retimer_pi3hdx1204()) { ioex_set_level(IOEX_HDMI_POWER_EN_DB, 1); + ioex_set_level(IOEX_HDMI_DATA_EN_DB, 1); msleep(PI3HDX1204_POWER_ON_DELAY_MS); pi3hdx1204_enable(I2C_PORT_TCPC1, PI3HDX1204_I2C_ADDR_FLAGS, @@ -482,6 +483,7 @@ static void board_chipset_suspend(void) PI3HDX1204_I2C_ADDR_FLAGS, 0); ioex_set_level(IOEX_HDMI_POWER_EN_DB, 0); + ioex_set_level(IOEX_HDMI_DATA_EN_DB, 0); } } DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); |