ARM: dts: add device tree support for exynos5 hdmi

This patch adds support for device tree based discovery for exynos5
hdmi. Hdmi node is also renamed with "exynos5-hdmi".

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/hdmi.txt b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
new file mode 100644 (file)
index 0000000..589edee
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
@@ -0,0 +1,22 @@
+Device-Tree bindings for drm hdmi driver
+
+Required properties:
+- compatible: value should be "samsung,exynos5-hdmi".
+- reg: physical base address of the hdmi and length of memory mapped
+       region.
+- interrupts: interrupt number to the cpu.
+- hpd-gpio: following information about the hotplug gpio pin.
+       a) phandle of the gpio controller node.
+       b) pin number within the gpio controller.
+       c) pin function mode.
+       d) optional flags and pull up/down.
+       e) drive strength.
+
+Example:
+
+       hdmi {
+               compatible = "samsung,exynos5-hdmi";
+               reg = <0x14530000 0x100000>;
+               interrupts = <0 95 0>;
+               hpd-gpio = <&gpx3 7 0xf 1 3>;
+       };

diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a352df4..2a478ab 100644 (file)
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -166,4 +166,8 @@
        spi_2: spi@12d40000 {
                status = "disabled";
        };
+
+       hdmi {
+               hpd-gpio = <&gpx3 7 0xf 1 3>;
+       };
 };

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index dddfd6e..b68be1c 100644 (file)
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -520,4 +520,10 @@
                reg = <0x13e30000 0x1000>;
                interrupts = <0 88 0>;
        };
+
+       hdmi {
+               compatible = "samsung,exynos5-hdmi";
+               reg = <0x14530000 0x100000>;
+               interrupts = <0 95 0>;
+       };
 };

diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index db1cd8e..5e38208 100644 (file)
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -72,6 +72,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
                                "exynos-gsc.2", NULL),
        OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3,
                                "exynos-gsc.3", NULL),
+       OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000,
+                               "exynos5-hdmi", NULL),
        {},
 };