Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/rockchip/rockchip,rk3066-hdmi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Rockchip rk3066 HDMI controller
   8
   9 maintainers:
  10   - Sandy Huang <hjc@rock-chips.com>
  11   - Heiko Stuebner <heiko@sntech.de>
  12
  13 properties:
  14   compatible:
  15     const: rockchip,rk3066-hdmi
  16
  17   reg:
  18     maxItems: 1
  19
  20   interrupts:
  21     maxItems: 1
  22
  23   clocks:
  24     maxItems: 1
  25
  26   clock-names:
  27     const: hclk
  28
  29   pinctrl-0:
  30     maxItems: 2
  31
  32   pinctrl-names:
  33     const: default
  34     description:
  35       Switch the iomux for the HPD/I2C pins to HDMI function.
  36
  37   power-domains:
  38     maxItems: 1
  39
  40   rockchip,grf:
  41     $ref: /schemas/types.yaml#/definitions/phandle
  42     description:
  43       This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
  44
  45   ports:
  46     $ref: /schemas/graph.yaml#/properties/ports
  47
  48     properties:
  49       port@0:
  50         $ref: /schemas/graph.yaml#/properties/port
  51         description:
  52           Port node with two endpoints, numbered 0 and 1,
  53           connected respectively to vop0 and vop1.
  54
  55       port@1:
  56         $ref: /schemas/graph.yaml#/properties/port
  57         description:
  58           Port node with one endpoint connected to a hdmi-connector node.
  59
  60     required:
  61       - port@0
  62       - port@1
  63
  64 required:
  65   - compatible
  66   - reg
  67   - interrupts
  68   - clocks
  69   - clock-names
  70   - pinctrl-0
  71   - pinctrl-names
  72   - power-domains
  73   - rockchip,grf
  74   - ports
  75
  76 additionalProperties: false
  77
  78 examples:
  79   - |
  80     #include <dt-bindings/clock/rk3066a-cru.h>
  81     #include <dt-bindings/interrupt-controller/arm-gic.h>
  82     #include <dt-bindings/pinctrl/rockchip.h>
  83     #include <dt-bindings/power/rk3066-power.h>
  84     hdmi: hdmi@10116000 {
  85       compatible = "rockchip,rk3066-hdmi";
  86       reg = <0x10116000 0x2000>;
  87       interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
  88       clocks = <&cru HCLK_HDMI>;
  89       clock-names = "hclk";
  90       pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
  91       pinctrl-names = "default";
  92       power-domains = <&power RK3066_PD_VIO>;
  93       rockchip,grf = <&grf>;
  94
  95       ports {
  96         #address-cells = <1>;
  97         #size-cells = <0>;
  98         hdmi_in: port@0 {
  99           reg = <0>;
 100           #address-cells = <1>;
 101           #size-cells = <0>;
 102           hdmi_in_vop0: endpoint@0 {
 103             reg = <0>;
 104             remote-endpoint = <&vop0_out_hdmi>;
 105           };
 106           hdmi_in_vop1: endpoint@1 {
 107             reg = <1>;
 108             remote-endpoint = <&vop1_out_hdmi>;
 109           };
 110         };
 111         hdmi_out: port@1 {
 112           reg = <1>;
 113           hdmi_out_con: endpoint {
 114             remote-endpoint = <&hdmi_con_in>;
 115           };
 116         };
 117       };
 118     };
 119
 120     pinctrl {
 121       hdmi {
 122         hdmi_hpd: hdmi-hpd {
 123           rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
 124         };
 125         hdmii2c_xfer: hdmii2c-xfer {
 126           rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
 127                           <0 RK_PA2 1 &pcfg_pull_none>;
 128         };
 129       };
 130     };