diff options
Diffstat (limited to 'common/keyboard_backlight.c')
| -rw-r--r-- | common/keyboard_backlight.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/common/keyboard_backlight.c b/common/keyboard_backlight.c index 4940d9a97e..b1b3671d3d 100644 --- a/common/keyboard_backlight.c +++ b/common/keyboard_backlight.c @@ -19,6 +19,7 @@ static struct kblight_conf kblight; static int current_percent; +static uint8_t current_enable; void __attribute__((weak)) board_kblight_init(void) { } @@ -56,14 +57,23 @@ int kblight_get(void) return current_percent; } -int kblight_enable(int enable) +static void kblight_enable_deferred(void) { #ifdef CONFIG_KBLIGHT_ENABLE_PIN - gpio_set_level(GPIO_EN_KEYBOARD_BACKLIGHT, enable); + gpio_set_level(GPIO_EN_KEYBOARD_BACKLIGHT, current_enable); #endif if (!kblight.drv || !kblight.drv->enable) - return -1; - return kblight.drv->enable(enable); + return; + kblight.drv->enable(current_enable); +} +DECLARE_DEFERRED(kblight_enable_deferred); + +int kblight_enable(int enable) +{ + current_enable = enable; + /* Need to defer i2c in case it's called from an interrupt handler. */ + hook_call_deferred(&kblight_enable_deferred_data, 0); + return EC_SUCCESS; } int kblight_get_enabled(void) @@ -104,6 +114,7 @@ static void keyboard_backlight_init(void) } DECLARE_HOOK(HOOK_INIT, keyboard_backlight_init, HOOK_PRIO_DEFAULT); +#ifdef HAS_TASK_CHIPSET static void kblight_suspend(void) { kblight_enable(0); @@ -118,12 +129,15 @@ static void kblight_resume(void) } } DECLARE_HOOK(HOOK_CHIPSET_RESUME, kblight_resume, HOOK_PRIO_DEFAULT); +#endif // HAS_TASK_CHIPSET +#ifdef CONFIG_LID_SWITCH static void kblight_lid_change(void) { kblight_enable(lid_is_open() && current_percent); } DECLARE_HOOK(HOOK_LID_CHANGE, kblight_lid_change, HOOK_PRIO_DEFAULT); +#endif /* * Console and host commands |