99 lines
2.5 KiB
Plaintext
Executable file
99 lines
2.5 KiB
Plaintext
Executable file
Rockchip RK3288 specific extensions to the Analogix Display Port
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================================
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Required properties:
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- compatible: "rockchip,rk3288-dp",
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"rockchip,rk3399-edp";
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- reg: physical base address of the controller and length
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- clocks: from common clock binding: handle to dp clock.
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of memory mapped region.
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- clock-names: from common clock binding:
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Required elements: "dp" "pclk"
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- pinctrl-names: Names corresponding to the chip hotplug pinctrl states.
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- pinctrl-0: pin-control mode. should be <&edp_hpd>
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- reset-names: Must include the name "dp"
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- rockchip,grf: this soc should set GRF regs, so need get grf here.
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- ports: there are 2 port nodes with endpoint definitions as defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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Port 0: contained 2 endpoints, connecting to the output of vop.
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Port 1: contained 1 endpoint, connecting to the input of panel.
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Optional property for different chips:
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- clocks: from common clock binding: handle to grf_vio clock.
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- clock-names: from common clock binding:
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Required elements: "grf"
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For the below properties, please refer to Analogix DP binding document:
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* Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
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- phys (required)
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- phy-names (required)
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- hpd-gpios (optional)
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- force-hpd (optional)
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-------------------------------------------------------------------------------
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Example:
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dp-controller: dp@ff970000 {
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compatible = "rockchip,rk3288-dp";
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reg = <0xff970000 0x4000>;
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interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;
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clock-names = "dp", "pclk";
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phys = <&dp_phy>;
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phy-names = "dp";
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rockchip,grf = <&grf>;
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resets = <&cru 111>;
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reset-names = "dp";
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pinctrl-names = "default";
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pinctrl-0 = <&edp_hpd>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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edp_in: port@0 {
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reg = <0>;
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#address-cells = <1>;
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#size-cells = <0>;
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edp_in_vopb: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&vopb_out_edp>;
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};
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edp_in_vopl: endpoint@1 {
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reg = <1>;
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remote-endpoint = <&vopl_out_edp>;
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};
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};
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edp_out: port@1 {
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reg = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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edp_out_panel: endpoint {
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reg = <0>;
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remote-endpoint = <&panel_in_edp>
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};
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};
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};
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};
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pinctrl {
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edp {
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edp_hpd: edp-hpd {
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rockchip,pins = <7 11 RK_FUNC_2 &pcfg_pull_none>;
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};
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};
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};
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