diff options
| -rw-r--r-- | drivers/video/backlight/lcd.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 3267acf8dc5b..f57ff8bcc2fa 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -18,6 +18,32 @@ #include <linux/fb.h> #include <linux/slab.h> +static void lcd_notify_blank(struct lcd_device *ld, struct device *display_dev, + int power) +{ + guard(mutex)(&ld->ops_lock); + + if (!ld->ops || !ld->ops->set_power) + return; + if (ld->ops->controls_device && !ld->ops->controls_device(ld, display_dev)) + return; + + ld->ops->set_power(ld, power); +} + +static void lcd_notify_mode_change(struct lcd_device *ld, struct device *display_dev, + unsigned int width, unsigned int height) +{ + guard(mutex)(&ld->ops_lock); + + if (!ld->ops || !ld->ops->set_mode) + return; + if (ld->ops->controls_device && !ld->ops->controls_device(ld, display_dev)) + return; + + ld->ops->set_mode(ld, width, height); +} + #if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \ defined(CONFIG_LCD_CLASS_DEVICE_MODULE)) static int to_lcd_power(int fb_blank) @@ -50,25 +76,17 @@ static int fb_notifier_callback(struct notifier_block *self, struct fb_info *info = evdata->info; struct lcd_device *fb_lcd = fb_lcd_device(info); - guard(mutex)(&ld->ops_lock); - - if (!ld->ops) - return 0; - if (ld->ops->controls_device && !ld->ops->controls_device(ld, info->device)) - return 0; if (fb_lcd && fb_lcd != ld) return 0; if (event == FB_EVENT_BLANK) { int power = to_lcd_power(*(int *)evdata->data); - if (ld->ops->set_power) - ld->ops->set_power(ld, power); + lcd_notify_blank(ld, info->device, power); } else { const struct fb_videomode *videomode = evdata->data; - if (ld->ops->set_mode) - ld->ops->set_mode(ld, videomode->xres, videomode->yres); + lcd_notify_mode_change(ld, info->device, videomode->xres, videomode->yres); } return 0; |