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authorNicolas Boichat <drinkcat@chromium.org>2019-06-13 09:10:35 +0800
committerCommit Bot <commit-bot@chromium.org>2019-06-17 05:31:38 +0000
commitddc1e52b75f5f6277af478630e5a0238394c31c4 (patch)
treeff17aa57a28b3fae43c407b904ed9c5efe2c4f56 /power/mt8183.c
parent7a1dfea02d3cb6ec16610ca284fbde2ab8145cea (diff)
downloadchrome-ec-ddc1e52b75f5f6277af478630e5a0238394c31c4.tar.gz
power/mt8183: Clarify comment about force PMIC shutdown
It turns out MT6358 cannot be configured to shut down when receiving WATCHDOG input, so the statement in the comment is incorrect. However, it is still correct to say that forcing PMIC shutdown should be rare. And add a note that PMIC RTC state will be lost. BRANCH=none BUG=b:109850749, b:134912821 TEST=none Change-Id: I7c84b012d7095fb94473303c83b4ffecb01ee5da Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1657074 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Yilun Lin <yllin@chromium.org>
Diffstat (limited to 'power/mt8183.c')
-rw-r--r--power/mt8183.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/power/mt8183.c b/power/mt8183.c
index b4795a3e34..244cb5f8de 100644
--- a/power/mt8183.c
+++ b/power/mt8183.c
@@ -386,8 +386,9 @@ enum power_state power_handle_state(enum power_state state)
case POWER_S5G3:
/*
* If PMIC is still not off, assert PMIC_FORCE_RESET_ODL.
- * This should not happen if PMIC is configured properly, and
- * shuts down upon receiving WATCHDOG.
+ * This should only happen for forced shutdown where the AP is
+ * not able to send a command to the PMIC. Also, PMIC will lose
+ * RTC state, in that case.
*/
if (power_get_signals() & IN_PGOOD_PMIC) {
CPRINTS("Forcing PMIC off");