24 static int gpio_backlight_update_status(struct backlight_device *bl)  in gpio_backlight_update_status()  argument
26 	struct gpio_backlight *gbl = bl_get_data(bl);  in gpio_backlight_update_status()
28 	gpiod_set_value_cansleep(gbl->gpiod, backlight_get_brightness(bl));  in gpio_backlight_update_status()
33 static int gpio_backlight_check_fb(struct backlight_device *bl,  in gpio_backlight_check_fb()  argument
36 	struct gpio_backlight *gbl = bl_get_data(bl);  in gpio_backlight_check_fb()
53 	struct backlight_device *bl;  in gpio_backlight_probe()  local
78 	bl = devm_backlight_device_register(dev, dev_name(dev), dev, gbl,  in gpio_backlight_probe()
80 	if (IS_ERR(bl)) {  in gpio_backlight_probe()
82 		return PTR_ERR(bl);  in gpio_backlight_probe()
88 		bl->props.power = def_value ? FB_BLANK_UNBLANK  in gpio_backlight_probe()
92 		bl->props.power = FB_BLANK_POWERDOWN;  in gpio_backlight_probe()
94 		bl->props.power = FB_BLANK_UNBLANK;  in gpio_backlight_probe()
96 	bl->props.brightness = 1;  in gpio_backlight_probe()
98 	init_brightness = backlight_get_brightness(bl);  in gpio_backlight_probe()
105 	platform_set_drvdata(pdev, bl);  in gpio_backlight_probe()