1Rockchip RK3399 specific extensions to the cdn Display Port
2================================
3
4Required properties:
5- compatible: must be "rockchip,rk3399-cdn-dp"
6
7- reg: physical base address of the controller and length
8
9- clocks: from common clock binding: handle to dp clock.
10
11- clock-names: from common clock binding:
12	       Required elements: "core-clk" "pclk" "spdif" "grf"
13
14- resets : a list of phandle + reset specifier pairs
15- reset-names : string of reset names
16		Required elements: "apb", "core", "dptx", "spdif"
17- power-domains : power-domain property defined with a phandle
18		  to respective power domain.
19- assigned-clocks: main clock, should be <&cru SCLK_DP_CORE>
20- assigned-clock-rates : the DP core clk frequency, shall be: 100000000
21
22- rockchip,grf: this soc should set GRF regs, so need get grf here.
23
24- ports: contain a port nodes with endpoint definitions as defined in
25	 Documentation/devicetree/bindings/media/video-interfaces.txt.
26	 contained 2 endpoints, connecting to the output of vop.
27
28- phys: from general PHY binding: the phandle for the PHY device.
29
30- extcon: extcon specifier for the Power Delivery
31
32- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
33
34-------------------------------------------------------------------------------
35
36Example:
37	cdn_dp: dp@fec00000 {
38		compatible = "rockchip,rk3399-cdn-dp";
39		reg = <0x0 0xfec00000 0x0 0x100000>;
40		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
41		clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
42			 <&cru SCLK_SPDIF_REC_DPTX>, <&cru PCLK_VIO_GRF>;
43		clock-names = "core-clk", "pclk", "spdif", "grf";
44		assigned-clocks = <&cru SCLK_DP_CORE>;
45		assigned-clock-rates = <100000000>;
46		power-domains = <&power RK3399_PD_HDCP>;
47		phys = <&tcphy0_dp>, <&tcphy1_dp>;
48		resets = <&cru SRST_DPTX_SPDIF_REC>;
49		reset-names = "spdif";
50		extcon = <&fusb0>, <&fusb1>;
51		rockchip,grf = <&grf>;
52		#address-cells = <1>;
53		#size-cells = <0>;
54		#sound-dai-cells = <1>;
55
56		ports {
57			#address-cells = <1>;
58			#size-cells = <0>;
59
60			dp_in: port {
61				#address-cells = <1>;
62				#size-cells = <0>;
63				dp_in_vopb: endpoint@0 {
64					reg = <0>;
65					remote-endpoint = <&vopb_out_dp>;
66				};
67
68				dp_in_vopl: endpoint@1 {
69					reg = <1>;
70					remote-endpoint = <&vopl_out_dp>;
71				};
72			};
73		};
74	};
75