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>

1 files changed, 22 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
new file mode 100644
index 000000000000..589edee37394
--- /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>;
+        };