xref: /freebsd/sys/contrib/device-tree/Bindings/display/bridge/ti,sn65dsi86.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)

SN65DSI86 DSI to eDP bridge chip
--------------------------------

This is the binding for Texas Instruments SN65DSI86 bridge.
http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=sn65dsi86&fileType=pdf

Required properties:
- compatible: Must be "ti,sn65dsi86"
- reg: i2c address of the chip, 0x2d as per datasheet
- enable-gpios: gpio specification for bridge_en pin (active high)

- vccio-supply: A 1.8V supply that powers up the digital IOs.
- vpll-supply: A 1.8V supply that powers up the displayport PLL.
- vcca-supply: A 1.2V supply that powers up the analog circuits.
- vcc-supply: A 1.2V supply that powers up the digital core.

Optional properties:
- interrupts-extended: Specifier for the SN65DSI86 interrupt line.

- gpio-controller: Marks the device has a GPIO controller.
- #gpio-cells    : Should be two. The first cell is the pin number and
                   the second cell is used to specify flags.
                   See ../../gpio/gpio.txt for more information.
- #pwm-cells : Should be one. See ../../pwm/pwm.yaml for description of
               the cell formats.

- clock-names: should be "refclk"
- clocks: Specification for input reference clock. The reference
	  clock rate must be 12 MHz, 19.2 MHz, 26 MHz, 27 MHz or 38.4 MHz.

- data-lanes: See ../../media/video-interface.txt
- lane-polarities: See ../../media/video-interface.txt

- suspend-gpios: specification for GPIO1 pin on bridge (active low)

Required nodes:
This device has two video ports. Their connections are modelled using the
OF graph bindings specified in Documentation/devicetree/bindings/graph.txt.

- Video port 0 for DSI input
- Video port 1 for eDP output

Example
-------

edp-bridge@2d {
	compatible = "ti,sn65dsi86";
	#address-cells = <1>;
	#size-cells = <0>;
	reg = <0x2d>;

	enable-gpios = <&msmgpio 33 GPIO_ACTIVE_HIGH>;
	suspend-gpios = <&msmgpio 34 GPIO_ACTIVE_LOW>;

	interrupts-extended = <&gpio3 4 IRQ_TYPE_EDGE_FALLING>;

	vccio-supply = <&pm8916_l17>;
	vcca-supply = <&pm8916_l6>;
	vpll-supply = <&pm8916_l17>;
	vcc-supply = <&pm8916_l6>;

	clock-names = "refclk";
	clocks = <&input_refclk>;

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

		port@0 {
			reg = <0>;

			edp_bridge_in: endpoint {
				remote-endpoint = <&dsi_out>;
			};
		};

		port@1 {
			reg = <1>;

			edp_bridge_out: endpoint {
				data-lanes = <2 1 3 0>;
				lane-polarities = <0 1 0 1>;
				remote-endpoint = <&edp_panel_in>;
			};
		};
	};
}