diff options
Diffstat (limited to 'drivers/video/backlight/lcd.c')
| -rw-r--r-- | drivers/video/backlight/lcd.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 71a11ca..cc2c538 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -15,6 +15,10 @@ #include <linux/fb.h> #include <linux/slab.h> +#ifdef CONFIG_DRM +#include <drm/drm_backlight.h> +#endif + #if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \ defined(CONFIG_LCD_CLASS_DEVICE_MODULE)) /* This callback gets called when something important happens inside a @@ -32,6 +36,8 @@ static int fb_notifier_callback(struct notifier_block *self, case FB_EVENT_BLANK: case FB_EVENT_MODE_CHANGE: case FB_EVENT_MODE_CHANGE_ALL: + case FB_EARLY_EVENT_BLANK: + case FB_R_EARLY_EVENT_BLANK: break; default: return 0; @@ -46,6 +52,14 @@ static int fb_notifier_callback(struct notifier_block *self, if (event == FB_EVENT_BLANK) { if (ld->ops->set_power) ld->ops->set_power(ld, *(int *)evdata->data); + } else if (event == FB_EARLY_EVENT_BLANK) { + if (ld->ops->early_set_power) + ld->ops->early_set_power(ld, + *(int *)evdata->data); + } else if (event == FB_R_EARLY_EVENT_BLANK) { + if (ld->ops->r_early_set_power) + ld->ops->r_early_set_power(ld, + *(int *)evdata->data); } else { if (ld->ops->set_mode) ld->ops->set_mode(ld, evdata->data); @@ -226,6 +240,10 @@ struct lcd_device *lcd_device_register(const char *name, struct device *parent, new_ld->ops = ops; +#ifdef CONFIG_DRM + drm_bl_register(&new_ld->dev, BL_LCD_CLASS); +#endif + return new_ld; } EXPORT_SYMBOL(lcd_device_register); @@ -241,6 +259,10 @@ void lcd_device_unregister(struct lcd_device *ld) if (!ld) return; +#ifdef CONFIG_DRM + drm_bl_unregister(&ld->dev); +#endif + mutex_lock(&ld->ops_lock); ld->ops = NULL; mutex_unlock(&ld->ops_lock); |