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>

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 9eca34f..3974959 100644 (file)
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -51,6 +51,12 @@
                };
 
                apbx@80040000 {
+                       pwm: pwm@80064000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&pwm2_pins_a>;
+                               status = "okay";
+                       };
+
                        auart0: serial@8006c000 {
                                pinctrl-names = "default";
                                pinctrl-0 = <&auart0_pins_a>;
@@ -76,4 +82,11 @@
                        gpio = <&gpio1 29 0>;
                };
        };
+
+       backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm 2 5000000>;
+               brightness-levels = <0 4 8 16 32 64 128 255>;
+               default-brightness-level = <6>;
+       };
 };

diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index a94ba1d..22e1617 100644 (file)
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -181,6 +181,16 @@
                                        >;
                                        fsl,pull-up = <0>;
                                };
+
+                               pwm2_pins_a: pwm2@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               0x11c0 /* MX23_PAD_PWM2__PWM2 */
+                                       >;
+                                       fsl,drive-strength = <0>;
+                                       fsl,voltage = <1>;
+                                       fsl,pull-up = <0>;
+                               };
                        };
 
                        digctl@8001c000 {
@@ -294,8 +304,11 @@
                                interrupts = <22>;
                        };
 
-                       pwm@80064000 {
+                       pwm: pwm@80064000 {
+                               compatible = "fsl,imx23-pwm";
                                reg = <0x80064000 2000>;
+                               #pwm-cells = <2>;
+                               fsl,pwm-number = <5>;
                                status = "disabled";
                        };
 

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 856b26a..fba7292 100644 (file)
--- 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>;
+       };
 };

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 669c1d0..0ad7b56 100644 (file)
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -364,6 +364,16 @@
                                        fsl,voltage = <1>;
                                        fsl,pull-up = <1>;
                                };
+
+                               pwm2_pins_a: pwm2@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               0x3120 /* MX28_PAD_PWM2__PWM_2 */
+                                       >;
+                                       fsl,drive-strength = <0>;
+                                       fsl,voltage = <1>;
+                                       fsl,pull-up = <0>;
+                               };
                        };
 
                        digctl@8001c000 {
@@ -526,8 +536,11 @@
                                status = "disabled";
                        };
 
-                       pwm@80064000 {
+                       pwm: pwm@80064000 {
+                               compatible = "fsl,imx28-pwm", "fsl,imx23-pwm";
                                reg = <0x80064000 2000>;
+                               #pwm-cells = <2>;
+                               fsl,pwm-number = <8>;
                                status = "disabled";
                        };