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Commit 302cee36 authored by Eric Anholt's avatar Eric Anholt
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dt-bindings: Document the VC4 DSI module nodes. 



These are part of the vc4 display pipeline.

Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Acked-by: default avatarRob Herring <robh@kernel.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-7-eric@anholt.net
parent a86773d1

Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt

+35 −0
Original line number Diff line number Diff line
@@ -56,6 +56,18 @@ Required properties for V3D: 
- interrupts:	The interrupt number

		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt



Required properties for DSI:

- compatible:	Should be "brcm,bcm2835-dsi0" or "brcm,bcm2835-dsi1"

- reg:		Physical base address and length of the DSI block's registers

- interrupts:	The interrupt number

		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt

- clocks:	a) phy: The DSI PLL clock feeding the DSI analog PHY

		b) escape: The DSI ESC clock from CPRMAN

		c) pixel: The DSI pixel clock from CPRMAN

- clock-output-names:

		The 3 clocks output from the DSI analog PHY: dsi[01]_byte,

		dsi[01]_ddr2, and dsi[01]_ddr



[1] Documentation/devicetree/bindings/media/video-interfaces.txt



Example:
@@ -99,6 +111,29 @@ dpi: dpi@7e208000 { 
	};

};



dsi1: dsi@7e700000 {

	compatible = "brcm,bcm2835-dsi1";

	reg = <0x7e700000 0x8c>;

	interrupts = <2 12>;

	#address-cells = <1>;

	#size-cells = <0>;

	#clock-cells = <1>;



	clocks = <&clocks BCM2835_PLLD_DSI1>,

		 <&clocks BCM2835_CLOCK_DSI1E>,

		 <&clocks BCM2835_CLOCK_DSI1P>;

	clock-names = "phy", "escape", "pixel";



	clock-output-names = "dsi1_byte", "dsi1_ddr2", "dsi1_ddr";



	pitouchscreen: panel@0 {

		compatible = "raspberrypi,touchscreen";

		reg = <0>;



		<...>

	};

};



vec: vec@7e806000 {

	compatible = "brcm,bcm2835-vec";

	reg = <0x7e806000 0x1000>;