ARM: dts: add device tree support for exynos5 hdmiddc

This patch adds support for device tree based discovery for exynos5
hdmi ddc.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt b/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt
new file mode 100644 (file)
index 0000000..fa166d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt
@@ -0,0 +1,12 @@
+Device-Tree bindings for hdmiddc driver
+
+Required properties:
+- compatible: value should be "samsung,exynos5-hdmiddc".
+- reg: I2C address of the hdmiddc device.
+
+Example:
+
+       hdmiddc {
+               compatible = "samsung,exynos5-hdmiddc";
+               reg = <0x50>;
+       };

diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 7dc196f6b0a12c0bb861595592aaafe333c30a42..7212d538086d088e507cf7a7dadf07815982f3f0 100644 (file)
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -56,7 +56,15 @@
        };
 
        i2c@12C80000 {
-               status = "disabled";
+               samsung,i2c-sda-delay = <100>;
+               samsung,i2c-max-bus-freq = <66000>;
+               gpios = <&gpa0 6 3 3 0>,
+                       <&gpa0 7 3 3 0>;
+
+               hdmiddc@50 {
+                       compatible = "samsung,exynos5-hdmiddc";
+                       reg = <0x50>;
+               };
        };
 
        i2c@12C90000 {

diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 0f20ba8fcf1b4f132e3a6509aa6e21601e78ab56..db035374087eeafd48f7ce71872b43ef417ce4da 100644 (file)
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -47,6 +47,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
                                "s3c2440-i2c.0", NULL),
        OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(1),
                                "s3c2440-i2c.1", NULL),
+       OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(2),
+                               "s3c2440-i2c.2", NULL),
        OF_DEV_AUXDATA("samsung,s3c2440-hdmiphy-i2c", EXYNOS5_PA_IIC(8),
                                "s3c2440-hdmiphy-i2c", NULL),
        OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0,