1Qualcomm adreno/snapdragon MDP4 display controller 2 3Description: 4 5This is the bindings documentation for the MDP4 display controller found in 6SoCs like MSM8960, APQ8064 and MSM8660. 7 8Required properties: 9- compatible: 10 * "qcom,mdp4" - mdp4 11- reg: Physical base address and length of the controller's registers. 12- interrupts: The interrupt signal from the display controller. 13- clocks: device clocks 14 See ../clocks/clock-bindings.txt for details. 15- clock-names: the following clocks are required. 16 * "core_clk" 17 * "iface_clk" 18 * "bus_clk" 19 * "lut_clk" 20 * "hdmi_clk" 21 * "tv_clk" 22- ports: contains the list of output ports from MDP. These connect to interfaces 23 that are external to the MDP hardware, such as HDMI, DSI, EDP etc (LVDS is a 24 special case since it is a part of the MDP block itself). 25 26 Each output port contains an endpoint that describes how it is connected to an 27 external interface. These are described by the standard properties documented 28 here: 29 Documentation/devicetree/bindings/graph.txt 30 Documentation/devicetree/bindings/media/video-interfaces.txt 31 32 The output port mappings are: 33 Port 0 -> LCDC/LVDS 34 Port 1 -> DSI1 Cmd/Video 35 Port 2 -> DSI2 Cmd/Video 36 Port 3 -> DTV 37 38Optional properties: 39- clock-names: the following clocks are optional: 40 * "lut_clk" 41- qcom,lcdc-align-lsb: Boolean value indicating that LSB alignment should be 42 used for LCDC. This is only valid for 18bpp panels. 43 44Example: 45 46/ { 47 ... 48 49 hdmi: hdmi@4a00000 { 50 ... 51 ports { 52 ... 53 port@0 { 54 reg = <0>; 55 hdmi_in: endpoint { 56 remote-endpoint = <&mdp_dtv_out>; 57 }; 58 }; 59 ... 60 }; 61 ... 62 }; 63 64 ... 65 66 mdp: mdp@5100000 { 67 compatible = "qcom,mdp4"; 68 reg = <0x05100000 0xf0000>; 69 interrupts = <GIC_SPI 75 0>; 70 clock-names = 71 "core_clk", 72 "iface_clk", 73 "lut_clk", 74 "hdmi_clk", 75 "tv_clk"; 76 clocks = 77 <&mmcc MDP_CLK>, 78 <&mmcc MDP_AHB_CLK>, 79 <&mmcc MDP_AXI_CLK>, 80 <&mmcc MDP_LUT_CLK>, 81 <&mmcc HDMI_TV_CLK>, 82 <&mmcc MDP_TV_CLK>; 83 84 ports { 85 #address-cells = <1>; 86 #size-cells = <0>; 87 88 port@0 { 89 reg = <0>; 90 mdp_lvds_out: endpoint { 91 }; 92 }; 93 94 port@1 { 95 reg = <1>; 96 mdp_dsi1_out: endpoint { 97 }; 98 }; 99 100 port@2 { 101 reg = <2>; 102 mdp_dsi2_out: endpoint { 103 }; 104 }; 105 106 port@3 { 107 reg = <3>; 108 mdp_dtv_out: endpoint { 109 remote-endpoint = <&hdmi_in>; 110 }; 111 }; 112 }; 113 }; 114}; 115