ARM: dts: add cm36651 light/proximity sensor node for exynos4412-trats2

Exynos4412-trats2 board have light/proximity sensor.
This patch add cm36651 light/ proximity sensor node for exynos4412.
cm36651 is required properties as below.
- Use i2c-gpio for cm36651 sensor.
- Use fixed regulator for the IR LED.
  It is a part of the cm36651 for proximity detection.
- cm36651 is i2c device driver so need to use i2c-gpio driver.
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4412-trats2.dts

@@ -21,6 +21,7 @@ / {
 
 	aliases {
 		i2c9 = &i2c_ak8975;
+		i2c10 = &i2c_cm36651;
 	};
 
 	memory {
@@ -98,6 +99,15 @@ cam_isp_core_reg: voltage-regulator-4 {
 			enable-active-high;
 			regulator-always-on;
 		};
+
+		ps_als_reg: voltage-regulator-5 {
+			compatible = "regulator-fixed";
+			regulator-name = "LED_A_3.0V";
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3000000>;
+			gpio = <&gpj0 5 0>;
+			enable-active-high;
+		};
 	};
 
 	gpio-keys {
@@ -558,6 +568,22 @@ ak8975@0c {
 		};
 	};
 
+	i2c_cm36651: i2c-gpio-2 {
+		compatible = "i2c-gpio";
+		gpios = <&gpf0 0 1>, <&gpf0 1 1>;
+		i2c-gpio,delay-us = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cm36651@18 {
+			compatible = "capella,cm36651";
+			reg = <0x18>;
+			interrupt-parent = <&gpx0>;
+			interrupts = <2 2>;
+			vled-supply = <&ps_als_reg>;
+		};
+	};
+
 	spi_1: spi@13930000 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&spi1_bus>;