diff options
Diffstat (limited to 'chip')
| -rw-r--r-- | chip/g/rbox.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/chip/g/rbox.c b/chip/g/rbox.c index 00fac521b6..005ed547c1 100644 --- a/chip/g/rbox.c +++ b/chip/g/rbox.c @@ -32,18 +32,42 @@ int rbox_powerbtn_is_pressed(void) return !GREAD_FIELD(RBOX, CHECK_OUTPUT, PWRB_OUT); } +/* + * This is 4X as RDD_MAX_WAIT_TIME_COUNTER default value, which should be + * long enough for rdd_is_detected() to represent a stable RDD status + */ +#define RDD_WAIT_TIME (40 * MSEC) + +/* + * Delay EC_RST_L release if RDD cable is connected, or release EC_RST_L + * otherwise. + */ +static void rbox_check_rdd(void) +{ +#ifdef CR50_DEV + print_rdd_state(); +#endif + if (rbox_powerbtn_is_pressed() && rdd_is_detected()) { + power_button_release_enable_interrupt(1); + return; + } + + deassert_ec_rst(); +} +DECLARE_DEFERRED(rbox_check_rdd); + static void rbox_release_ec_reset(void) { /* Unfreeze the PINMUX */ GREG32(PINMUX, HOLD) = 0; /* - * After a POR, if it finds RDD cable plugged and Power button pressed, - * then it delays releasing EC-reset until power button gets released. + * After a POR, if the power button is held, then delay releasing + * EC_RST_L. */ if ((system_get_reset_flags() & RESET_FLAG_POWER_ON) && - rdd_is_detected() && rbox_powerbtn_is_pressed()) { - power_button_release_enable_interrupt(1); + rbox_powerbtn_is_pressed()) { + hook_call_deferred(&rbox_check_rdd_data, RDD_WAIT_TIME); return; } |