[PATCH V5 2/2] video: exynos_dp: device tree documentation

[Jingoo Han]

On Saturday, October 13, 2012 5:48 AM Ajay kumar wrote
> 
> Add documentation for the DT bindings in exynos display port driver.
> 
> Signed-off-by: Ajay Kumar <ajaykumar.rs at samsung.com>
> ---
>  .../devicetree/bindings/video/exynos_dp.txt        |   80 ++++++++++++++++++++
>  1 files changed, 80 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/video/exynos_dp.txt
> 
> diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt
> b/Documentation/devicetree/bindings/video/exynos_dp.txt
> new file mode 100644
> index 0000000..e19594b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/video/exynos_dp.txt
> @@ -0,0 +1,80 @@
> +The Exynos display port interface should be configured based on the
> +based on the type of panel connected to it.

'based on' is duplicated. So, please fix it as bellows:

+The Exynos display port interface should be configured based on
+the type of panel connected to it.


> +
> +We use two nodes:
> +	-display-port-controller node
> +	-dptx-phy node(defined inside display-port-controller node)
> +
> +For the DP-PHY initialization, we use the dptx-phy node.
> +Required properties for dptx-phy:
> +	-reg:
> +		Base address of DP PHY register.
> +	-samsung,enable-mask:
> +		The bit-mask used to enable/disable DP PHY.
> +
> +For the Panel initialization, we read data from display-port-controller node.
> +Required properties for display-port-controller:
> +	-compatible:
> +		should be "samsung,exynos5-dp".
> +	-reg:
> +		physical base address of the controller and length
> +		of memory mapped region.
> +	-interrupts:
> +		interrupt combiner values.
> +	-interrupt-parent:
> +		phandle to Interrupt combiner node.
> +	-samsung,color-space:
> +		input video data format.
> +			COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
> +	-samsung,dynamic-range:
> +		dynamic range for input video data.
> +			VESA = 0, CEA = 1
> +	-samsung,ycbcr-coeff:
> +		YCbCr co-efficients for input video.
> +			COLOR_YCBCR601 = 0, COLOR_YCBCR709 = 1
> +	-samsung,color-depth:
> +		number of bits per colour component.
> +			COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3
> +	-samsung,link-rate:
> +		link rate supported by the panel.
> +			LINK_RATE_1_62GBPS = 0x6, LINK_RATE_2_70GBPS = 0x0A
> +	-samsung,lane-count:
> +		number of lanes supported by the panel.
> +			LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4
> +
> +Optional properties for display-port-controller:
> +	-interlaced:
> +		interlace scan mode.
> +			Progressive if defined, Interlaced if not defined
> +	-vsync-active-high:
> +		VSYNC polarity configuration.
> +			High if defined, Low if not defined
> +	-hsync-active-high:
> +		HSYNC polarity configuration.
> +			High if defined, Low if not defined
> +
> +Example:
> +
> +SOC specific portion:
> +	display-port-controller {
> +		compatible = "samsung,exynos5-dp";
> +		reg = <0x145b0000 0x10000>;
> +		interrupts = <10 3>;
> +		interrupt-parent = <&combiner>;
> +
> +		dptx-phy {
> +			reg = <0x10040720>;
> +			samsung,enable-mask = <1>;
> +		};
> +
> +        };
> +
> +Board Specific portion:
> +	display-port-controller {
> +		samsung,color-space = <0>;
> +		samsung,dynamic-range = <0>;
> +		samsung,ycbcr-coeff = <0>;
> +		samsung,color-depth = <1>;
> +		samsung,link-rate = <0x0a>;
> +		samsung,lane-count = <2>;
> +	};
> --
> 1.7.0.4