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

   1 Rockchip specific extensions for rk3066 HDMI
   2 ============================================
   3
   4 Required properties:
   5 - compatible:
   6         "rockchip,rk3066-hdmi";
   7 - reg:
   8         Physical base address and length of the controller's registers.
   9 - clocks, clock-names:
  10         Phandle to HDMI controller clock, name should be "hclk".
  11 - interrupts:
  12         HDMI interrupt number.
  13 - power-domains:
  14         Phandle to the RK3066_PD_VIO power domain.
  15 - rockchip,grf:
  16         This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
  17 - ports:
  18         Contains one port node with two endpoints, numbered 0 and 1,
  19         connected respectively to vop0 and vop1.
  20         Contains one port node with one endpoint
  21         connected to a hdmi-connector node.
  22 - pinctrl-0, pinctrl-name:
  23         Switch the iomux for the HPD/I2C pins to HDMI function.
  24
  25 Example:
  26         hdmi: hdmi@10116000 {
  27                 compatible = "rockchip,rk3066-hdmi";
  28                 reg = <0x10116000 0x2000>;
  29                 interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
  30                 clocks = <&cru HCLK_HDMI>;
  31                 clock-names = "hclk";
  32                 power-domains = <&power RK3066_PD_VIO>;
  33                 rockchip,grf = <&grf>;
  34                 pinctrl-names = "default";
  35                 pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
  36
  37                 ports {
  38                         #address-cells = <1>;
  39                         #size-cells = <0>;
  40                         hdmi_in: port@0 {
  41                                 reg = <0>;
  42                                 #address-cells = <1>;
  43                                 #size-cells = <0>;
  44                                 hdmi_in_vop0: endpoint@0 {
  45                                         reg = <0>;
  46                                         remote-endpoint = <&vop0_out_hdmi>;
  47                                 };
  48                                 hdmi_in_vop1: endpoint@1 {
  49                                         reg = <1>;
  50                                         remote-endpoint = <&vop1_out_hdmi>;
  51                                 };
  52                         };
  53                         hdmi_out: port@1 {
  54                                 reg = <1>;
  55                                 hdmi_out_con: endpoint {
  56                                         remote-endpoint = <&hdmi_con_in>;
  57                                 };
  58                         };
  59                 };
  60         };
  61
  62 &pinctrl {
  63                 hdmi {
  64                         hdmi_hpd: hdmi-hpd {
  65                                 rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
  66                         };
  67                         hdmii2c_xfer: hdmii2c-xfer {
  68                                 rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
  69                                                 <0 RK_PA2 1 &pcfg_pull_none>;
  70                         };
  71                 };
  72 };