linux-kernel - [PATCH 1/5] ARM: dts: sun5i: Add backlight GPIO for reference design tablet

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Message-Id: <20190127144838.3578-2-wens@csie.org>
Date:   Sun, 27 Jan 2019 22:48:34 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] ARM: dts: sun5i: Add backlight GPIO for reference design tablet

Now that we support the GPIOs on the AXP209, we can control the LCD
backlight with them.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
index 6202aabedbfe..5b1f0e198eb6 100644
--- a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
+++ b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
@@ -54,7 +54,7 @@
 		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
 		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
 		default-brightness-level = <8>;
-		/* TODO: backlight uses axp gpio1 as enable pin */
+		enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>; /* AXP GPIO1 */
 	};
 
 	chosen {
-- 
2.20.1