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>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index f621fd976815..c89f10c1efc7 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -21,6 +21,7 @@
 
         aliases {
                 i2c9 = &i2c_ak8975;
+                i2c10 = &i2c_cm36651;
         };
 
         memory {
@@ -98,6 +99,15 @@
                         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 @@
                 };
         };
 
+        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>;