ARM: dts: mxs: add pwm-backlight for imx23-evk and imx28-evk

Add pwm device and pwm-backlight for imx23-evk and imx28-evk.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 856b26aa915a..fba72922d3a1 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -95,6 +95,12 @@
                                 };
                         };
 
+                        pwm: pwm@80064000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&pwm2_pins_a>;
+                                status = "okay";
+                        };
+
                         duart: serial@80074000 {
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&duart_pins_a>;
@@ -179,4 +185,11 @@
                         linux,default-trigger = "heartbeat";
                 };
         };
+
+        backlight {
+                compatible = "pwm-backlight";
+                pwms = <&pwm 2 5000000>;
+                brightness-levels = <0 4 8 16 32 64 128 255>;
+                default-brightness-level = <6>;
+        };
 };