dt-bindings: display: renesas: du: Document optional reset properties (1accbeca) · Commits · 戴 / test

Document the optional properties for describing module resets, to support resetting display channels on R-Car Gen2 and Gen3. Signed-off-by:

Documentation/devicetree/bindings/display/renesas,du.txt

+10 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,14 @@ Required Properties:
		VSP instance that serves the DU channel, and the channel index identifies
		the LIF instance in that VSP.

		Optional properties:
		- resets: A list of phandle + reset-specifier pairs, one for each entry in
		the reset-names property.
		- reset-names: Names of the resets. This property is model-dependent.
		- All but R8A7779 use one reset for a group of one or more successive
		channels. The resets must be named "du.x" with "x" being the numerical
		index of the lowest channel in the group.

		Required nodes:

		The connections to the DU output video ports are modeled using the OF graph
		@@ -96,6 +104,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU
		<&cpg CPG_MOD 722>,
		<&cpg CPG_MOD 721>;
		clock-names = "du.0", "du.1", "du.2", "du.3";
		resets = <&cpg 724>, <&cpg 722>;
		reset-names = "du.0", "du.2";
		renesas,cmms = <&cmm0>, <&cmm1>, <&cmm2>, <&cmm3>;
		renesas,vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;