23 static int gpio_backlight_update_status(struct backlight_device *bl)  in gpio_backlight_update_status()  argument
25 	struct gpio_backlight *gbl = bl_get_data(bl);  in gpio_backlight_update_status()
27 	gpiod_set_value_cansleep(gbl->gpiod, backlight_get_brightness(bl));  in gpio_backlight_update_status()
32 static bool gpio_backlight_controls_device(struct backlight_device *bl,  in gpio_backlight_controls_device()  argument
35 	struct gpio_backlight *gbl = bl_get_data(bl);  in gpio_backlight_controls_device()
52 	struct backlight_device *bl;  in gpio_backlight_probe()  local
73 	bl = devm_backlight_device_register(dev, dev_name(dev), dev, gbl,  in gpio_backlight_probe()
75 	if (IS_ERR(bl)) {  in gpio_backlight_probe()
77 		return PTR_ERR(bl);  in gpio_backlight_probe()
83 		bl->props.power = def_value ? BACKLIGHT_POWER_ON  in gpio_backlight_probe()
86 		bl->props.power = BACKLIGHT_POWER_OFF;  in gpio_backlight_probe()
88 		bl->props.power = BACKLIGHT_POWER_ON;  in gpio_backlight_probe()
90 	bl->props.brightness = 1;  in gpio_backlight_probe()
92 	init_brightness = backlight_get_brightness(bl);  in gpio_backlight_probe()
99 	platform_set_drvdata(pdev, bl);  in gpio_backlight_probe()