ARM: dts: imx27-phytec-phycore: Add diagnostic PMIC LEDs

PCM-038 module have three triple LEDs connected to PMIC which
can be used for diagnostic purposes. This patch adds support
for these LEDs for PCM-038 SOM and adds basic LED-triggers for
these LEDs for PCM-970 RDK, the remaining LEDs are available
for use from userspace.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts

@@ -96,6 +96,56 @@
 	status = "okay";
 };
 
+&pmicleds {
+	ledr1: led@3 {
+		reg = <3>;
+		label = "system:red1:user";
+	};
+
+	ledg1: led@4 {
+		reg = <4>;
+		label = "system:green1:user";
+	};
+
+	ledb1: led@5 {
+		reg = <5>;
+		label = "system:blue1:user";
+	};
+
+	ledr2: led@6 {
+		reg = <6>;
+		label = "system:red2:user";
+	};
+
+	ledg2: led@7 {
+		reg = <7>;
+		label = "system:green2:user";
+	};
+
+	ledb2: led@8 {
+		reg = <8>;
+		label = "system:blue2:user";
+	};
+
+	ledr3: led@9 {
+		reg = <9>;
+		label = "system:red3:nand";
+		linux,default-trigger = "nand-disk";
+	};
+
+	ledg3: led@10 {
+		reg = <10>;
+		label = "system:green3:live";
+		linux,default-trigger = "heartbeat";
+	};
+
+	ledb3: led@11 {
+		reg = <11>;
+		label = "system:blue3:cpu";
+		linux,default-trigger = "cpu0";
+	};
+};
+
 &sdhci2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdhc2>;

arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi

@@ -69,6 +69,12 @@
 		fsl,mc13xxx-uses-adc;
 		fsl,mc13xxx-uses-rtc;
 
+		pmicleds: leds {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			led-control = <0x001 0x000 0x000 0x000 0x000 0x000>;
+		};
+
 		regulators {
 			/* SW1A and SW1B joined operation */
 			sw1_reg: sw1a {