ARM: dts: omap3-gta04: Add backlight support

Define pwm backlight node which is using dmtimer pwm.

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index ab9fb8f49ff387ea4d19707e089994a5752228d0..cef8b23a6b19b0018842a5f10eb1fbf40bc9e3f0 100644 (file)
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -100,6 +100,22 @@
                };
        };
 
+       backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm11 0 2000000 0>;
+               pwm-names = "backlight";
+               brightness-levels = <0 11 20 30 40 50 60 70 80 90 100>;
+               default-brightness-level = <9>; /* => 90 */
+               pinctrl-names = "default";
+               pinctrl-0 = <&backlight_pins>;
+       };
+
+       pwm11: dmtimer-pwm@11 {
+               compatible = "ti,omap-dmtimer-pwm";
+               ti,timers = <&timer11>;
+               #pwm-cells = <3>;
+       };
+
        hsusb2_phy: hsusb2_phy {
                compatible = "usb-nop-xceiv";
                reset-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
@@ -190,6 +206,12 @@
                >;
        };
 
+       backlight_pins: backlight_pins_pimnux {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x20ba, MUX_MODE3)            /* gpt11/gpio57 */
+               >;
+       };
+
        dss_dpi_pins: pinmux_dss_dpi_pins {
                pinctrl-single,pins = <
                        OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0)   /* dss_pclk.dss_pclk */