dt-bindings: memory: tegra124: emc: Document OPP table and voltage regulator (881f68ed) · Commits · 戴 / test

Document new OPP table and voltage regulator properties which are needed for supporting dynamic voltage-frequency scaling of the memory controller. Some boards may have a fixed core voltage regulator, hence it's optional because frequency scaling still may be desired. Signed-off-by:

Dmitry Osipenko <digetx@gmail.com> Reviewed-by:

Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201104164923.21238-15-digetx@gmail.com Signed-off-by:

Krzysztof Kozlowski <krzk@kernel.org>

Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-emc.yaml

+12 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,15 @@ properties:
		description:
		phandle of the memory controller node

		core-supply:
		description:
		Phandle of voltage regulator of the SoC "core" power domain.

		operating-points-v2:
		description:
		Should contain freqs and voltages and opp-supported-hw property, which
		is a bitfield indicating SoC speedo ID mask.

		patternProperties:
		"^emc-timings-[0-9]+$":
		type: object
		@@ -331,6 +340,7 @@ required:
		- clock-names
		- nvidia,memory-controller
		- "#interconnect-cells"
		- operating-points-v2

		additionalProperties: false

		@@ -359,6 +369,8 @@ examples:
		clock-names = "emc";

		nvidia,memory-controller = <&mc>;
		operating-points-v2 = <&dvfs_opp_table>;
		core-supply = <&vdd_core>;

		#interconnect-cells = <0>;

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