Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / video / exynos_dp.txt

diff --git a/kernel/Documentation/devicetree/bindings/video/exynos_dp.txt b/kernel/Documentation/devicetree/bindings/video/exynos_dp.txt
new file mode 100644 (file)
index 0000000..7a3a9cd
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/video/exynos_dp.txt
@@ -0,0 +1,120 @@
+The Exynos display port interface should be configured based on
+the type of panel connected to it.
+
+We use two nodes:
+       -dp-controller node
+       -dptx-phy node(defined inside dp-controller node)
+
+For the DP-PHY initialization, we use the dptx-phy node.
+Required properties for dptx-phy: deprecated, use phys and phy-names
+       -reg: deprecated
+               Base address of DP PHY register.
+       -samsung,enable-mask: deprecated
+               The bit-mask used to enable/disable DP PHY.
+
+For the Panel initialization, we read data from dp-controller node.
+Required properties for dp-controller:
+       -compatible:
+               should be "samsung,exynos5-dp".
+       -reg:
+               physical base address of the controller and length
+               of memory mapped region.
+       -interrupts:
+               interrupt combiner values.
+       -clocks:
+               from common clock binding: handle to dp clock.
+       -clock-names:
+               from common clock binding: Shall be "dp".
+       -interrupt-parent:
+               phandle to Interrupt combiner node.
+       -phys:
+               from general PHY binding: the phandle for the PHY device.
+       -phy-names:
+               from general PHY binding: Should be "dp".
+       -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
+       - display-timings: timings for the connected panel as described by
+               Documentation/devicetree/bindings/video/display-timing.txt
+
+Optional properties for dp-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
+       -samsung,hpd-gpio:
+               Hotplug detect GPIO.
+                       Indicates which GPIO should be used for hotplug
+                       detection
+       -video interfaces: Device node can contain video interface port
+                           nodes according to [1].
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+SOC specific portion:
+       dp-controller {
+               compatible = "samsung,exynos5-dp";
+               reg = <0x145b0000 0x10000>;
+               interrupts = <10 3>;
+               interrupt-parent = <&combiner>;
+               clocks = <&clock 342>;
+               clock-names = "dp";
+
+               phys = <&dp_phy>;
+               phy-names = "dp";
+       };
+
+Board Specific portion:
+       dp-controller {
+               samsung,color-space = <0>;
+               samsung,dynamic-range = <0>;
+               samsung,ycbcr-coeff = <0>;
+               samsung,color-depth = <1>;
+               samsung,link-rate = <0x0a>;
+               samsung,lane-count = <4>;
+
+               display-timings {
+                       native-mode = <&lcd_timing>;
+                       lcd_timing: 1366x768 {
+                               clock-frequency = <70589280>;
+                               hactive = <1366>;
+                               vactive = <768>;
+                               hfront-porch = <40>;
+                               hback-porch = <40>;
+                               hsync-len = <32>;
+                               vback-porch = <10>;
+                               vfront-porch = <12>;
+                               vsync-len = <6>;
+                       };
+               };
+
+               ports {
+                       port@0 {
+                               dp_out: endpoint {
+                                       remote-endpoint = <&bridge_in>;
+                               };
+                       };
+               };
+       };