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-rw-r--r-- | Documentation/devicetree/bindings/video/exynos_dp.txt | 80 |
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diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt b/Documentation/devicetree/bindings/video/exynos_dp.txt new file mode 100644 index 000000000000..c60da67a5d76 --- /dev/null +++ b/Documentation/devicetree/bindings/video/exynos_dp.txt | |||
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1 | The Exynos display port interface should be configured based on | ||
2 | the type of panel connected to it. | ||
3 | |||
4 | We use two nodes: | ||
5 | -dp-controller node | ||
6 | -dptx-phy node(defined inside dp-controller node) | ||
7 | |||
8 | For the DP-PHY initialization, we use the dptx-phy node. | ||
9 | Required properties for dptx-phy: | ||
10 | -reg: | ||
11 | Base address of DP PHY register. | ||
12 | -samsung,enable-mask: | ||
13 | The bit-mask used to enable/disable DP PHY. | ||
14 | |||
15 | For the Panel initialization, we read data from dp-controller node. | ||
16 | Required properties for dp-controller: | ||
17 | -compatible: | ||
18 | should be "samsung,exynos5-dp". | ||
19 | -reg: | ||
20 | physical base address of the controller and length | ||
21 | of memory mapped region. | ||
22 | -interrupts: | ||
23 | interrupt combiner values. | ||
24 | -interrupt-parent: | ||
25 | phandle to Interrupt combiner node. | ||
26 | -samsung,color-space: | ||
27 | input video data format. | ||
28 | COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2 | ||
29 | -samsung,dynamic-range: | ||
30 | dynamic range for input video data. | ||
31 | VESA = 0, CEA = 1 | ||
32 | -samsung,ycbcr-coeff: | ||
33 | YCbCr co-efficients for input video. | ||
34 | COLOR_YCBCR601 = 0, COLOR_YCBCR709 = 1 | ||
35 | -samsung,color-depth: | ||
36 | number of bits per colour component. | ||
37 | COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3 | ||
38 | -samsung,link-rate: | ||
39 | link rate supported by the panel. | ||
40 | LINK_RATE_1_62GBPS = 0x6, LINK_RATE_2_70GBPS = 0x0A | ||
41 | -samsung,lane-count: | ||
42 | number of lanes supported by the panel. | ||
43 | LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4 | ||
44 | |||
45 | Optional properties for dp-controller: | ||
46 | -interlaced: | ||
47 | interlace scan mode. | ||
48 | Progressive if defined, Interlaced if not defined | ||
49 | -vsync-active-high: | ||
50 | VSYNC polarity configuration. | ||
51 | High if defined, Low if not defined | ||
52 | -hsync-active-high: | ||
53 | HSYNC polarity configuration. | ||
54 | High if defined, Low if not defined | ||
55 | |||
56 | Example: | ||
57 | |||
58 | SOC specific portion: | ||
59 | dp-controller { | ||
60 | compatible = "samsung,exynos5-dp"; | ||
61 | reg = <0x145b0000 0x10000>; | ||
62 | interrupts = <10 3>; | ||
63 | interrupt-parent = <&combiner>; | ||
64 | |||
65 | dptx-phy { | ||
66 | reg = <0x10040720>; | ||
67 | samsung,enable-mask = <1>; | ||
68 | }; | ||
69 | |||
70 | }; | ||
71 | |||
72 | Board Specific portion: | ||
73 | dp-controller { | ||
74 | samsung,color-space = <0>; | ||
75 | samsung,dynamic-range = <0>; | ||
76 | samsung,ycbcr-coeff = <0>; | ||
77 | samsung,color-depth = <1>; | ||
78 | samsung,link-rate = <0x0a>; | ||
79 | samsung,lane-count = <4>; | ||
80 | }; | ||