ENGR00305067-9 ARM: dts: imx6sx-sdb: Add pwm4 backlight support

This patch adds pwm4 backlight support for the imx6sx-sdb platform.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index 84b32f0f29d8..6f67e1236e95 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -22,6 +22,14 @@
                 fb-names = "mxs-lcdif0";
         };
 
+        backlight2 {
+                compatible = "pwm-backlight";
+                pwms = <&pwm4 0 5000000>;
+                brightness-levels = <0 4 8 16 32 64 128 255>;
+                default-brightness-level = <6>;
+                fb-names = "mxs-lcdif1";
+        };
+
         memory {
                 reg = <0x80000000 0x40000000>;
         };
@@ -476,6 +484,12 @@
         status = "okay";
 };
 
+&pwm4 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_pwm4_0>;
+        status = "okay";
+};
+
 &pxp {
         status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 6ace795d9742..02fb687de31c 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -1241,6 +1241,14 @@
                 };
         };
 
+        pwm4 {
+                pinctrl_pwm4_0: pwm4grp-0 {
+                        fsl,pins = <
+                                MX6SX_PAD_SD1_DATA1__PWM4_OUT 0x110b0
+                        >;
+                };
+        };
+
         qspi2 {
                 pinctrl_qspi2_1: qspi2grp_1 {
                         fsl,pins = <