This patch adds support for device tree based discovery for exynos5
hdmi ddc.
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
---
.../devicetree/bindings/drm/exynos/hdmiddc.txt | 12 ++++++++++++
arch/arm/boot/dts/exynos5250-smdk5250.dts | 10 +++++++++-
arch/arm/mach-exynos/mach-exynos5-dt.c | 2 ++
3 files changed, 23 insertions(+), 1 deletions(-)
create mode 100644 Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt
diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt b/Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt
new file mode 100644
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 7dc196f..7212d53 100644
--- 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 7d2bcf1..9d6185f 100644
--- 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,
--
1.7.0.4
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