diff options
| -rw-r--r-- | src/mainboard/google/falco/smihandler.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/falco/smihandler.c b/src/mainboard/google/falco/smihandler.c index 7b7dd69beb..52dd77654a 100644 --- a/src/mainboard/google/falco/smihandler.c +++ b/src/mainboard/google/falco/smihandler.c @@ -32,6 +32,9 @@ #include <ec/google/chromeec/ec.h> #include "ec.h" +/* GPIO46 controls the WLAN_DISABLE_L signal. */ +#define GPIO_WLAN_DISABLE_L 46 + int mainboard_io_trap_handler(int smif) { switch (smif) { @@ -98,6 +101,9 @@ void mainboard_smi_sleep(u8 slp_typ) if (smm_get_gnvs()->s3u1 == 0) google_chromeec_set_usb_charge_mode( 1, USB_CHARGE_MODE_DISABLED); + + /* Prevent leak from standby rail to WLAN rail in S3. */ + set_gpio(GPIO_WLAN_DISABLE_L, 0); break; case 5: if (smm_get_gnvs()->s5u0 == 0) @@ -106,6 +112,9 @@ void mainboard_smi_sleep(u8 slp_typ) if (smm_get_gnvs()->s5u1 == 0) google_chromeec_set_usb_charge_mode( 1, USB_CHARGE_MODE_DISABLED); + + /* Prevent leak from standby rail to WLAN rail in S5. */ + set_gpio(GPIO_WLAN_DISABLE_L, 0); break; } |