ARM: shmobile: armadillo-reference: Add PWM backlight node to DT

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
index 9fcffc1..8b2aab5 100644 (file)
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
@@ -11,6 +11,7 @@
 /dts-v1/;
 /include/ "r8a7740.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
        model = "armadillo 800 eva reference";
@@ -49,6 +50,15 @@
                        gpios = <&pfc 177 GPIO_ACTIVE_HIGH>;
                };
        };
+
+       backlight {
+               compatible = "pwm-backlight";
+               pwms = <&tpu 2 33333 PWM_POLARITY_INVERTED>;
+               brightness-levels = <0 1 2 4 8 16 32 64 128 255>;
+               default-brightness-level = <9>;
+               pinctrl-0 = <&backlight_pins>;
+               pinctrl-names = "default";
+       };
 };
 
 &i2c0 {
@@ -77,4 +87,13 @@
                renesas,groups = "intc_irq10";
                renesas,function = "intc";
        };
+
+       backlight_pins: backlight {
+               renesas,groups = "tpu0_to2_1";
+               renesas,function = "tpu0";
+       };
+};
+
+&tpu {
+       status = "okay";
 };