David Venhoff
cfcea9ee67
Based off b80915eb99
and compacted into a single commit so that it will fit on the uni git server
75 lines
2.2 KiB
Plaintext
75 lines
2.2 KiB
Plaintext
Rockchip RK3399 specific extensions to the cdn Display Port
|
|
================================
|
|
|
|
Required properties:
|
|
- compatible: must be "rockchip,rk3399-cdn-dp"
|
|
|
|
- reg: physical base address of the controller and length
|
|
|
|
- clocks: from common clock binding: handle to dp clock.
|
|
|
|
- clock-names: from common clock binding:
|
|
Required elements: "core-clk" "pclk" "spdif" "grf"
|
|
|
|
- resets : a list of phandle + reset specifier pairs
|
|
- reset-names : string of reset names
|
|
Required elements: "apb", "core", "dptx", "spdif"
|
|
- power-domains : power-domain property defined with a phandle
|
|
to respective power domain.
|
|
- assigned-clocks: main clock, should be <&cru SCLK_DP_CORE>
|
|
- assigned-clock-rates : the DP core clk frequency, shall be: 100000000
|
|
|
|
- rockchip,grf: this soc should set GRF regs, so need get grf here.
|
|
|
|
- ports: contain a port nodes with endpoint definitions as defined in
|
|
Documentation/devicetree/bindings/media/video-interfaces.txt.
|
|
contained 2 endpoints, connecting to the output of vop.
|
|
|
|
- phys: from general PHY binding: the phandle for the PHY device.
|
|
|
|
- extcon: extcon specifier for the Power Delivery
|
|
|
|
- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Example:
|
|
cdn_dp: dp@fec00000 {
|
|
compatible = "rockchip,rk3399-cdn-dp";
|
|
reg = <0x0 0xfec00000 0x0 0x100000>;
|
|
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
|
|
<&cru SCLK_SPDIF_REC_DPTX>, <&cru PCLK_VIO_GRF>;
|
|
clock-names = "core-clk", "pclk", "spdif", "grf";
|
|
assigned-clocks = <&cru SCLK_DP_CORE>;
|
|
assigned-clock-rates = <100000000>;
|
|
power-domains = <&power RK3399_PD_HDCP>;
|
|
phys = <&tcphy0_dp>, <&tcphy1_dp>;
|
|
resets = <&cru SRST_DPTX_SPDIF_REC>;
|
|
reset-names = "spdif";
|
|
extcon = <&fusb0>, <&fusb1>;
|
|
rockchip,grf = <&grf>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
#sound-dai-cells = <1>;
|
|
|
|
ports {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
dp_in: port {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
dp_in_vopb: endpoint@0 {
|
|
reg = <0>;
|
|
remote-endpoint = <&vopb_out_dp>;
|
|
};
|
|
|
|
dp_in_vopl: endpoint@1 {
|
|
reg = <1>;
|
|
remote-endpoint = <&vopl_out_dp>;
|
|
};
|
|
};
|
|
};
|
|
};
|