ARM: dts: imx7-colibri: specify backlight GPIO

The Colibri standard defines SODIMM 71 as backlight enable
GPIO. Assign the GPIO to the backlight node in the module
level device tree.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi
index d623ef0..689ff68 100644 (file)
--- a/arch/arm/boot/dts/imx7-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri.dtsi
@@ -43,7 +43,10 @@
 / {
        bl: backlight {
                compatible = "pwm-backlight";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_gpio_bl_on>;
                pwms = <&pwm1 0 5000000 0>;
+               enable-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
        };
 
        reg_module_3v3: regulator-module-3v3 {
@@ -360,7 +363,6 @@
                fsl,pins = <
                        MX7D_PAD_ECSPI2_SS0__GPIO4_IO23         0x14 /* SODIMM 65 */
                        MX7D_PAD_SD1_CD_B__GPIO5_IO0            0x74 /* SODIMM 69 */
-                       MX7D_PAD_SD1_WP__GPIO5_IO1              0x14 /* SODIMM 71 */
                        MX7D_PAD_I2C4_SDA__GPIO4_IO15           0x14 /* SODIMM 75 */
                        MX7D_PAD_ECSPI1_MISO__GPIO4_IO18        0x14 /* SODIMM 79 */
                        MX7D_PAD_I2C3_SCL__GPIO4_IO12           0x14 /* SODIMM 81 */
@@ -436,6 +438,12 @@
                >;
        };
 
+       pinctrl_gpio_bl_on: gpio-bl-on {
+               fsl,pins = <
+                       MX7D_PAD_SD1_WP__GPIO5_IO1              0x14 /* SODIMM 71 */
+               >;
+       };
+
        pinctrl_gpmi_nand: gpmi-nand-grp {
                fsl,pins = <
                        MX7D_PAD_SD3_CLK__NAND_CLE              0x71