Documentation/devicetree/bindings/display/msm/dp-controller.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: MSM Display Port Controller
   8
   9 maintainers:
  10   - Kuogee Hsieh <khsieh@codeaurora.org>
  11
  12 description: |
  13   Device tree bindings for DisplayPort host controller for MSM targets
  14   that are compatible with VESA DisplayPort interface specification.
  15
  16 properties:
  17   compatible:
  18     enum:
  19       - qcom,sc7180-dp
  20
  21   reg:
  22     maxItems: 1
  23
  24   interrupts:
  25     maxItems: 1
  26
  27   clocks:
  28     items:
  29       - description: AHB clock to enable register access
  30       - description: Display Port AUX clock
  31       - description: Display Port Link clock
  32       - description: Link interface clock between DP and PHY
  33       - description: Display Port Pixel clock
  34
  35   clock-names:
  36     items:
  37       - const: core_iface
  38       - const: core_aux
  39       - const: ctrl_link
  40       - const: ctrl_link_iface
  41       - const: stream_pixel
  42
  43   assigned-clocks:
  44     items:
  45       - description: link clock source
  46       - description: pixel clock source
  47
  48   assigned-clock-parents:
  49     items:
  50       - description: phy 0 parent
  51       - description: phy 1 parent
  52
  53   phys:
  54     maxItems: 1
  55
  56   phy-names:
  57     items:
  58       - const: dp
  59
  60   operating-points-v2:
  61     maxItems: 1
  62
  63   power-domains:
  64     maxItems: 1
  65
  66   "#sound-dai-cells":
  67     const: 0
  68
  69   ports:
  70     $ref: /schemas/graph.yaml#/properties/ports
  71     properties:
  72       port@0:
  73         $ref: /schemas/graph.yaml#/properties/port
  74         description: Input endpoint of the controller
  75
  76       port@1:
  77         $ref: /schemas/graph.yaml#/properties/port
  78         description: Output endpoint of the controller
  79
  80 required:
  81   - compatible
  82   - reg
  83   - interrupts
  84   - clocks
  85   - clock-names
  86   - phys
  87   - phy-names
  88   - "#sound-dai-cells"
  89   - power-domains
  90   - ports
  91
  92 additionalProperties: false
  93
  94 examples:
  95   - |
  96     #include <dt-bindings/interrupt-controller/arm-gic.h>
  97     #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
  98     #include <dt-bindings/power/qcom-aoss-qmp.h>
  99     #include <dt-bindings/power/qcom-rpmpd.h>
 100
 101     displayport-controller@ae90000 {
 102         compatible = "qcom,sc7180-dp";
 103         reg = <0xae90000 0x1400>;
 104         interrupt-parent = <&mdss>;
 105         interrupts = <12>;
 106         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
 107                  <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
 108                  <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
 109                  <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
 110                  <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
 111         clock-names = "core_iface", "core_aux",
 112                       "ctrl_link",
 113                       "ctrl_link_iface", "stream_pixel";
 114
 115         assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
 116                           <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
 117
 118         assigned-clock-parents = <&dp_phy 0>, <&dp_phy 1>;
 119
 120         phys = <&dp_phy>;
 121         phy-names = "dp";
 122
 123         #sound-dai-cells = <0>;
 124
 125         power-domains = <&rpmhpd SC7180_CX>;
 126
 127         ports {
 128             #address-cells = <1>;
 129             #size-cells = <0>;
 130
 131             port@0 {
 132                 reg = <0>;
 133                 endpoint {
 134                     remote-endpoint = <&dpu_intf0_out>;
 135                 };
 136             };
 137
 138             port@1 {
 139                 reg = <1>;
 140                 endpoint {
 141                     remote-endpoint = <&typec>;
 142                 };
 143             };
 144         };
 145     };
 146 ...