diff options
| -rw-r--r-- | board/chell/board.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/board/chell/board.c b/board/chell/board.c index b05926bb50..759521eeb9 100644 --- a/board/chell/board.c +++ b/board/chell/board.c @@ -369,17 +369,25 @@ static void board_chipset_suspend(void) } DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); -void board_set_gpio_hibernate_state(void) +void board_hibernate(void) { - /* Turn off LEDs in hibernate */ - gpio_set_level(GPIO_CHARGE_LED_1, 0); - gpio_set_level(GPIO_CHARGE_LED_2, 0); + CPRINTS("Triggering PMIC shutdown."); + uart_flush_output(); + + /* Trigger PMIC shutdown. */ + if (i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x49, 0x01)) { + /* + * If we can't tell the PMIC to shutdown, instead reset + * and don't start the AP. Hopefully we'll be able to + * communicate with the PMIC next time. + */ + CPRINTS("PMIC i2c failed."); + system_reset(SYSTEM_RESET_LEAVE_AP_OFF); + } - /* - * Set PD wake low so that it toggles high to generate a wake - * event once we leave hibernate. - */ - gpio_set_level(GPIO_USB_PD_WAKE, 0); + /* Await shutdown. */ + while (1) + ; } /* Make the pmic re-sequence the power rails under these conditions. */ |