Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 844ef042 authored by Maxime Ripard's avatar Maxime Ripard Committed by Mauro Carvalho Chehab
Browse files

media: dt-bindings: media: Add Cadence MIPI-CSI2 TX Device Tree bindings 



The Cadence MIPI-CSI2 TX controller is a CSI2 bridge that supports up to 4
video streams and can output on up to 4 CSI-2 lanes, depending on the
hardware implementation.

It can operate with an external D-PHY, an internal one or no D-PHY at all
in some configurations.

Acked-by: default avatarBenoit Parrot <bparrot@ti.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 1fc3b37f

Documentation/devicetree/bindings/media/cdns,csi2tx.txt

0 → 100644
+98 −0
Original line number Diff line number Diff line 
Cadence MIPI-CSI2 TX controller

===============================



The Cadence MIPI-CSI2 TX controller is a CSI-2 bridge supporting up to

4 CSI lanes in output, and up to 4 different pixel streams in input.



Required properties:

  - compatible: must be set to "cdns,csi2tx"

  - reg: base address and size of the memory mapped region

  - clocks: phandles to the clocks driving the controller

  - clock-names: must contain:

    * esc_clk: escape mode clock

    * p_clk: register bank clock

    * pixel_if[0-3]_clk: pixel stream output clock, one for each stream

                         implemented in hardware, between 0 and 3



Optional properties

  - phys: phandle to the D-PHY. If it is set, phy-names need to be set

  - phy-names: must contain "dphy"



Required subnodes:

  - ports: A ports node with one port child node per device input and output

           port, in accordance with the video interface bindings defined in

           Documentation/devicetree/bindings/media/video-interfaces.txt. The

           port nodes are numbered as follows.



           Port Description

           -----------------------------

           0    CSI-2 output

           1    Stream 0 input

           2    Stream 1 input

           3    Stream 2 input

           4    Stream 3 input



           The stream input port nodes are optional if they are not

           connected to anything at the hardware level or implemented

           in the design. Since there is only one endpoint per port,

           the endpoints are not numbered.



Example:



csi2tx: csi-bridge@0d0e1000 {

	compatible = "cdns,csi2tx";

	reg = <0x0d0e1000 0x1000>;

	clocks = <&byteclock>, <&byteclock>,

		 <&coreclock>, <&coreclock>,

		 <&coreclock>, <&coreclock>;

	clock-names = "p_clk", "esc_clk",

		      "pixel_if0_clk", "pixel_if1_clk",

		      "pixel_if2_clk", "pixel_if3_clk";



	ports {

		#address-cells = <1>;

		#size-cells = <0>;



		port@0 {

			reg = <0>;



			csi2tx_out: endpoint {

				remote-endpoint = <&remote_in>;

				clock-lanes = <0>;

				data-lanes = <1 2>;

			};

		};



		port@1 {

			reg = <1>;



			csi2tx_in_stream0: endpoint {

				remote-endpoint = <&stream0_out>;

			};

		};



		port@2 {

			reg = <2>;



			csi2tx_in_stream1: endpoint {

				remote-endpoint = <&stream1_out>;

			};

		};



		port@3 {

			reg = <3>;



			csi2tx_in_stream2: endpoint {

				remote-endpoint = <&stream2_out>;

			};

		};



		port@4 {

			reg = <4>;



			csi2tx_in_stream3: endpoint {

				remote-endpoint = <&stream3_out>;

			};

		};

	};

};