[PATCH 9/9] ARM/dts: update device tree binding documentation for hdmi susbsystem

[Rahul Sharma <rahul.sharma@samsung.com>]

Update device tree binding documentation for hdmi subsystem with the
clock information, phy property information and compatible strings for
exynos5420.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
---
 .../devicetree/bindings/video/exynos_hdmi.txt       |   19 +++++++++++++++++++
 .../devicetree/bindings/video/exynos_hdmiphy.txt    |   10 ++++++++--
 .../devicetree/bindings/video/exynos_mixer.txt      |    7 +++++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/video/exynos_hdmi.txt b/Documentation/devicetree/bindings/video/exynos_hdmi.txt
index 2ac01ca..e3c5853 100644
--- a/Documentation/devicetree/bindings/video/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/video/exynos_hdmi.txt
@@ -4,6 +4,7 @@ Required properties:
 - compatible: value should be one among the following:
 	1) "samsung,exynos4210-hdmi"
 	2) "samsung,exynos4212-hdmi"
+	3) "samsung,exynos5420-hdmi"
 - reg: physical base address of the hdmi and length of memory mapped
 	region.
 - interrupts: interrupt number to the cpu.
@@ -13,6 +14,20 @@ Required properties:
 	c) pin function mode.
 	d) optional flags and pull up/down.
 	e) drive strength.
+- clocks: list of clock IDs from SoC clock driver.
+	a) hdmi: It is required for gate operation on aclk_200_disp1 clock
+		which clocks the display1 block.
+	b) sclk_hdmi: It is required for gate operation on sclk_hdmi clock
+		which clocks hdmi IP.
+	c) sclk_pixel: Parent for mux mout_hdmi.
+	d) sclk_hdmiphy: Parent for mux mout_hdmi.
+	e) mout_hdmi: It is required by the driver to switch between the 2
+		parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
+		after configuration, parent is set to sclk_hdmiphy else
+		sclk_pixel.
+- clock-names: aliases as per driver requirements for above clock IDs:
+	"hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
+- phy: this property holds the phandle for hdmiphy node.
 
 Example:
 
@@ -21,4 +36,8 @@ Example:
 		reg = <0x14530000 0x100000>;
 		interrupts = <0 95 0>;
 		hpd-gpio = <&gpx3 7 0xf 1 3>;
+		clocks = <&clock 344>, <&clock 136>, <&clock 137>,
+				<&clock 157>, <&clock 1024>;
+		clock-names = "hdmi", "sclk_hdmi", "sclk_pixel",
+				"sclk_hdmiphy", "mout_hdmi";
 	};
diff --git a/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt b/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
index fb688a6..e2b12ed 100644
--- a/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
+++ b/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
@@ -1,8 +1,14 @@
 Device-Tree bindings for hdmiphy driver
 
 Required properties:
-- compatible: value should be "samsung,exynos4210-hdmiphy".
-- reg: I2C address of the hdmiphy device.
+- compatible: value should be one among the following
+	1) Samsung,exynos4210-hdmiphy".
+	2) Samsung,exynos5420-hdmiphy".
+
+- reg: it holds the physical address infomration for the hdmiphy device.
+	If it is a i2c device, reg holds the I2C address of the phy. For
+	platform bus mapped phy, reg property holds physical address as
+	well as size of the register region.
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/video/exynos_mixer.txt b/Documentation/devicetree/bindings/video/exynos_mixer.txt
index a8b063f..38e4e5c 100644
--- a/Documentation/devicetree/bindings/video/exynos_mixer.txt
+++ b/Documentation/devicetree/bindings/video/exynos_mixer.txt
@@ -4,10 +4,15 @@ Required properties:
 - compatible: value should be:
 	1) "samsung,exynos4210-mixer"
 	2) "samsung,exynos5250-mixer"
+	3) "samsung,exynos5420-mixer"
 
 - reg: physical base address of the mixer and length of memory mapped
 	region.
 - interrupts: interrupt number to the cpu.
+- clocks: list of clock IDs from SoC clock driver.
+	a) mixer: It is required for gate operation on aclk_200_disp1 clock
+		which clocks the display1 block.
+	b) sclk_hdmi: Parent for mux mout_mixer.
 
 Example:
 
@@ -15,4 +20,6 @@ Example:
 		compatible = "samsung,exynos5250-mixer";
 		reg = <0x14450000 0x10000>;
 		interrupts = <0 94 0>;
+		clocks = <&clock 343>, <&clock 136>;
+		clock-names = "mixer", "sclk_hdmi";
 	};
-- 
1.7.10.4