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     type: object
  47
  48     properties:
  49       "#address-cells":
  50         const: 1
  51
  52       "#size-cells":
  53         const: 0
  54
  55       port@0:
  56         type: object
  57         description:
  58           Port node with two endpoints, numbered 0 and 1,
  59           connected respectively to vop0 and vop1.
  60
  61       port@1:
  62         type: object
  63         description:
  64           Port node with one endpoint connected to a hdmi-connector node.
  65
  66     required:
  67       - "#address-cells"
  68       - "#size-cells"
  69       - port@0
  70       - port@1
  71
  72     additionalProperties: false
  73
  74 required:
  75   - compatible
  76   - reg
  77   - interrupts
  78   - clocks
  79   - clock-names
  80   - pinctrl-0
  81   - pinctrl-names
  82   - power-domains
  83   - rockchip,grf
  84   - ports
  85
  86 additionalProperties: false
  87
  88 examples:
  89   - |
  90     #include <dt-bindings/clock/rk3066a-cru.h>
  91     #include <dt-bindings/interrupt-controller/arm-gic.h>
  92     #include <dt-bindings/pinctrl/rockchip.h>
  93     #include <dt-bindings/power/rk3066-power.h>
  94     hdmi: hdmi@10116000 {
  95       compatible = "rockchip,rk3066-hdmi";
  96       reg = <0x10116000 0x2000>;
  97       interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
  98       clocks = <&cru HCLK_HDMI>;
  99       clock-names = "hclk";
 100       pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
 101       pinctrl-names = "default";
 102       power-domains = <&power RK3066_PD_VIO>;
 103       rockchip,grf = <&grf>;
 104
 105       ports {
 106         #address-cells = <1>;
 107         #size-cells = <0>;
 108         hdmi_in: port@0 {
 109           reg = <0>;
 110           #address-cells = <1>;
 111           #size-cells = <0>;
 112           hdmi_in_vop0: endpoint@0 {
 113             reg = <0>;
 114             remote-endpoint = <&vop0_out_hdmi>;
 115           };
 116           hdmi_in_vop1: endpoint@1 {
 117             reg = <1>;
 118             remote-endpoint = <&vop1_out_hdmi>;
 119           };
 120         };
 121         hdmi_out: port@1 {
 122           reg = <1>;
 123           hdmi_out_con: endpoint {
 124             remote-endpoint = <&hdmi_con_in>;
 125           };
 126         };
 127       };
 128     };
 129
 130     pinctrl {
 131       hdmi {
 132         hdmi_hpd: hdmi-hpd {
 133           rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
 134         };
 135         hdmii2c_xfer: hdmii2c-xfer {
 136           rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
 137                           <0 RK_PA2 1 &pcfg_pull_none>;
 138         };
 139       };
 140     };