29 static int wm831x_backlight_set(struct backlight_device *bl, int brightness)  in wm831x_backlight_set()  argument
33 	int power_up = !data->current_brightness && brightness;  in wm831x_backlight_set()
34 	int power_down = data->current_brightness && !brightness;  in wm831x_backlight_set()
67 			      WM831X_CS1_ISEL_MASK, brightness);  in wm831x_backlight_set()
79 	data->current_brightness = brightness;  in wm831x_backlight_set()
97 	int brightness = bl->props.brightness;  in wm831x_backlight_update_status()  local
100 		brightness = 0;  in wm831x_backlight_update_status()
103 		brightness = 0;  in wm831x_backlight_update_status()
106 		brightness = 0;  in wm831x_backlight_update_status()
108 	return wm831x_backlight_set(bl, brightness);  in wm831x_backlight_update_status()
206 	bl->props.brightness = max_isel;  in wm831x_backlight_probe()