xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt

Exynos MIPI DSI Master

Required properties:
  - compatible: value should be one of the following
		"samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */
		"samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */
		"samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */
		"samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */
		"samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */
  - reg: physical base address and length of the registers set for the device
  - interrupts: should contain DSI interrupt
  - clocks: list of clock specifiers, must contain an entry for each required
    entry in clock-names
  - clock-names: should include "bus_clk"and "sclk_mipi" entries
		 the use of "pll_clk" is deprecated
  - phys: list of phy specifiers, must contain an entry for each required
    entry in phy-names
  - phy-names: should include "dsim" entry
  - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
  - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
  - samsung,pll-clock-frequency: specifies frequency of the oscillator clock
  - #address-cells, #size-cells: should be set respectively to <1> and <0>
    according to DSI host bindings (see MIPI DSI bindings [1])
  - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
    mode
  - samsung,esc-clock-frequency: specifies DSI frequency in escape mode

Optional properties:
  - power-domains: a phandle to DSIM power domain node

Child nodes:
  Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).

Video interfaces:
  Device node can contain following video interface port nodes according to [2]:
  0: RGB input,
  1: DSI output

[1]: Documentation/devicetree/bindings/display/mipi-dsi-bus.txt
[2]: Documentation/devicetree/bindings/media/video-interfaces.txt

Example:

	dsi@11c80000 {
		compatible = "samsung,exynos4210-mipi-dsi";
		reg = <0x11C80000 0x10000>;
		interrupts = <0 79 0>;
		clocks = <&clock 286>, <&clock 143>;
		clock-names = "bus_clk", "sclk_mipi";
		phys = <&mipi_phy 1>;
		phy-names = "dsim";
		vddcore-supply = <&vusb_reg>;
		vddio-supply = <&vmipi_reg>;
		power-domains = <&pd_lcd0>;
		#address-cells = <1>;
		#size-cells = <0>;
		samsung,pll-clock-frequency = <24000000>;

		panel@1 {
			reg = <0>;
			...
			port {
				panel_ep: endpoint {
					remote-endpoint = <&dsi_ep>;
				};
			};
		};

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;
				decon_to_mic: endpoint {
					remote-endpoint = <&mic_to_decon>;
				};
			};

			port@1 {
				reg = <1>;
				dsi_ep: endpoint {
					reg = <0>;
					samsung,burst-clock-frequency = <500000000>;
					samsung,esc-clock-frequency = <20000000>;
					remote-endpoint = <&panel_ep>;
				};
			};
		};
	};