diff options
Diffstat (limited to 'drivers/power/reset/sc27xx-poweroff.c')
| -rw-r--r-- | drivers/power/reset/sc27xx-poweroff.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/power/reset/sc27xx-poweroff.c b/drivers/power/reset/sc27xx-poweroff.c index 29fb08b8faa0..2bedd4c58ddc 100644 --- a/drivers/power/reset/sc27xx-poweroff.c +++ b/drivers/power/reset/sc27xx-poweroff.c @@ -13,6 +13,8 @@ #define SC27XX_PWR_PD_HW 0xc2c #define SC27XX_PWR_OFF_EN BIT(0) +#define SC27XX_SLP_CTRL 0xdf0 +#define SC27XX_LDO_XTL_EN BIT(3) static struct regmap *regmap; @@ -40,6 +42,9 @@ static struct syscore_ops poweroff_syscore_ops = { static void sc27xx_poweroff_do_poweroff(void) { + /* Disable the external subsys connection's power firstly */ + regmap_write(regmap, SC27XX_SLP_CTRL, SC27XX_LDO_XTL_EN); + regmap_write(regmap, SC27XX_PWR_PD_HW, SC27XX_PWR_OFF_EN); } |