0001 Rockchip RK3288 specific extensions to the Analogix Display Port
0002 ================================
0003
0004 Required properties:
0005 - compatible: "rockchip,rk3288-dp",
0006 "rockchip,rk3399-edp";
0007
0008 - reg: physical base address of the controller and length
0009
0010 - clocks: from common clock binding: handle to dp clock.
0011 of memory mapped region.
0012
0013 - clock-names: from common clock binding:
0014 Required elements: "dp" "pclk"
0015
0016 - resets: Must contain an entry for each entry in reset-names.
0017 See ../reset/reset.txt for details.
0018
0019 - pinctrl-names: Names corresponding to the chip hotplug pinctrl states.
0020 - pinctrl-0: pin-control mode. should be <&edp_hpd>
0021
0022 - reset-names: Must include the name "dp"
0023
0024 - rockchip,grf: this soc should set GRF regs, so need get grf here.
0025
0026 - ports: there are 2 port nodes with endpoint definitions as defined in
0027 Documentation/devicetree/bindings/media/video-interfaces.txt.
0028 Port 0: contained 2 endpoints, connecting to the output of vop.
0029 Port 1: contained 1 endpoint, connecting to the input of panel.
0030
0031 Optional property for different chips:
0032 - clocks: from common clock binding: handle to grf_vio clock.
0033
0034 - clock-names: from common clock binding:
0035 Required elements: "grf"
0036
0037 For the below properties, please refer to Analogix DP binding document:
0038 * Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
0039 - phys (required)
0040 - phy-names (required)
0041 - hpd-gpios (optional)
0042 - force-hpd (optional)
0043 -------------------------------------------------------------------------------
0044
0045 Example:
0046 dp-controller: dp@ff970000 {
0047 compatible = "rockchip,rk3288-dp";
0048 reg = <0xff970000 0x4000>;
0049 interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
0050 clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;
0051 clock-names = "dp", "pclk";
0052 phys = <&dp_phy>;
0053 phy-names = "dp";
0054
0055 rockchip,grf = <&grf>;
0056 resets = <&cru 111>;
0057 reset-names = "dp";
0058
0059 pinctrl-names = "default";
0060 pinctrl-0 = <&edp_hpd>;
0061
0062
0063 ports {
0064 #address-cells = <1>;
0065 #size-cells = <0>;
0066 edp_in: port@0 {
0067 reg = <0>;
0068 #address-cells = <1>;
0069 #size-cells = <0>;
0070 edp_in_vopb: endpoint@0 {
0071 reg = <0>;
0072 remote-endpoint = <&vopb_out_edp>;
0073 };
0074 edp_in_vopl: endpoint@1 {
0075 reg = <1>;
0076 remote-endpoint = <&vopl_out_edp>;
0077 };
0078 };
0079
0080 edp_out: port@1 {
0081 reg = <1>;
0082 #address-cells = <1>;
0083 #size-cells = <0>;
0084 edp_out_panel: endpoint {
0085 reg = <0>;
0086 remote-endpoint = <&panel_in_edp>
0087 };
0088 };
0089 };
0090 };
0091
0092 pinctrl {
0093 edp {
0094 edp_hpd: edp-hpd {
0095 rockchip,pins = <7 11 RK_FUNC_2 &pcfg_pull_none>;
0096 };
0097 };
0098 };
