diff options
| -rw-r--r-- | power/mediatek.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/power/mediatek.c b/power/mediatek.c index 544adbe250..bdd330de7c 100644 --- a/power/mediatek.c +++ b/power/mediatek.c @@ -104,6 +104,12 @@ /* Wait for 5V power source stable */ #define PMIC_WAIT_FOR_5V_POWER_GOOD (1 * MSEC) +/* + * If POWER_GOOD is lost, wait for PMIC to turn off its power completely + * before we turn off VBAT by set_system_power(0) + */ +#define PMIC_POWER_OFF_DELAY (50 * MSEC) + /* TODO(crosbug.com/p/25047): move to HOOK_POWER_BUTTON_CHANGE */ /* 1 if the power button was pressed last time we checked */ static char power_button_was_pressed; @@ -470,6 +476,7 @@ static void chipset_turn_off_power_rails(void) set_pmic_pwron(0); /* system power off */ + usleep(PMIC_POWER_OFF_DELAY); set_system_power(0); } |