diff options
| -rw-r--r-- | power/rk3399.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/power/rk3399.c b/power/rk3399.c index 1ae89e3d3f..c3ed2cfc08 100644 --- a/power/rk3399.c +++ b/power/rk3399.c @@ -60,7 +60,7 @@ static const struct power_signal_info power_control_outputs[] = { { GPIO_SYS_RST_L, 0 }, }; -static int want_s0_exit; +static int forcing_shutdown; void chipset_force_shutdown(void) { @@ -70,13 +70,19 @@ void chipset_force_shutdown(void) * Force power off. This condition will reset once the state machine * transitions to G3. */ - /* TODO: Implement */ + forcing_shutdown = 1; + task_wake(TASK_ID_CHIPSET); } void chipset_reset(int cold_reset) { - /* TODO: implement */ + /* TODO: handle cold_reset */ CPRINTS("%s(%d)", __func__, cold_reset); + + /* Pulse SYS_RST */ + gpio_set_level(GPIO_SYS_RST_L, 0); + udelay(10); + gpio_set_level(GPIO_SYS_RST_L, 1); } enum power_state power_chipset_init(void) @@ -103,23 +109,25 @@ enum power_state power_handle_state(enum power_state state) break; case POWER_S5: - if (want_s0_exit) + if (forcing_shutdown) return POWER_S5G3; else return POWER_S5S3; case POWER_S3: - if (want_s0_exit) + if (forcing_shutdown) return POWER_S3S5; else return POWER_S3S0; case POWER_S0: - if (want_s0_exit) + if (forcing_shutdown) return POWER_S0S3; break; case POWER_G3S5: + forcing_shutdown = 0; + /* Power up to next state */ return POWER_S5; @@ -212,7 +220,6 @@ enum power_state power_handle_state(enum power_state state) return POWER_S5; case POWER_S5G3: - want_s0_exit = 0; /* Initialize power signal outputs to default. */ return power_chipset_init(); } @@ -230,7 +237,7 @@ static void power_button_changed(void) /* Power up */ chipset_exit_hard_off(); else - want_s0_exit = 1; + forcing_shutdown = 1; task_wake(TASK_ID_CHIPSET); } |