diff options
| author | Wai-Hong Tam <waihong@google.com> | 2021-08-09 15:19:48 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-08-12 18:11:32 +0000 |
| commit | 94f52949ae4487918573ca7bab85942f147caa0c (patch) | |
| tree | cfa8e90f7006324311d6eea7f41e4034dd6f9d40 | |
| parent | c48d7b5e254d6f982c827bf2f3053c2e530db7e2 (diff) | |
| download | chrome-ec-94f52949ae4487918573ca7bab85942f147caa0c.tar.gz | |
qcom: Increase the delay between powering on the switchcap and the PMIC
Measured the delay on Herobrine IOB + Trogdor MLB is ~200ms. Pick a
larger delay 300ms.
BRANCH=None
BUG=None
TEST=Booted AP successfully.
Change-Id: Iaba20995e23c2f2041601c9fc17f35a1cb9300c4
Signed-off-by: Wai-Hong Tam <waihong@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3083184
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
| -rw-r--r-- | power/qcom.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/power/qcom.c b/power/qcom.c index 8fd96cbb54..e2b0ff3fd5 100644 --- a/power/qcom.c +++ b/power/qcom.c @@ -126,9 +126,12 @@ BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT); /* * Delay between power-on the system and power-on the PMIC. * Some latest PMIC firmware needs this delay longer, for doing a cold - * reboot. Did an experiment; it should be 120ms+. Set it with margin. + * reboot. + * + * Measured on Herobrine IOB + Trogdor MLB, the delay takes ~200ms. Set + * it with margin. */ -#define SYSTEM_POWER_ON_DELAY (150 * MSEC) +#define SYSTEM_POWER_ON_DELAY (300 * MSEC) /* * Delay between the PMIC power drop and power-off the system. |