linux-kernel - [PATCH v1 3/3] ARM: dts: imx6qdl-apalis: Use enable-gpios property for backlight

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Message-Id: <dff8d58c4021719184af2c83773e86f175ad910e.1473833908.git.maitysanchayan@gmail.com>
Date:   Wed, 14 Sep 2016 12:05:05 +0530
From:   Sanchayan Maity <maitysanchayan@...il.com>
To:     shawnguo@...nel.org
Cc:     marcel.ziswiler@...adex.com, stefan@...er.ch,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sanchayan Maity <maitysanchayan@...il.com>
Subject: [PATCH v1 3/3] ARM: dts: imx6qdl-apalis: Use enable-gpios property for backlight

Use enable-gpios property of PWM backlight driver for backlight
control. While at it also fix the use of brightness levels required
by EDT displays which require inverted PWM's.

Signed-off-by: Sanchayan Maity <maitysanchayan@...il.com>
---
 arch/arm/boot/dts/imx6qdl-apalis.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 8c67dd8..9100bde 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -49,7 +49,10 @@
 
 	backlight: backlight {
 		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_bl_on>;
 		pwms = <&pwm4 0 5000000>;
+		enable-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
 		status = "disabled";
 	};
 
@@ -614,6 +617,12 @@
 		>;
 	};
 
+	pinctrl_gpio_bl_on: gpioblon {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_DA13__GPIO3_IO13 0x1b0b0
+		>;
+	};
+
 	pinctrl_gpio_keys: gpio1io04grp {
 		fsl,pins = <
 			/* Power button */
-- 
2.9.3