Commit fe5a2bbb authored by Vikash Garodia's avatar Vikash Garodia Committed by Mauro Carvalho Chehab
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media: dt-bindings: media: Document bindings for venus firmware device 



Add devicetree binding documentation for firmware loader for video
hardware running on qualcomm chip.

Signed-off-by: default avatarVikash Garodia <vgarodia@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarStanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: default avatarAlexandre Courbot <acourbot@chromium.org>
Tested-by: default avatarAlexandre Courbot <acourbot@chromium.org>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent df381dc8

Documentation/devicetree/bindings/media/qcom,venus.txt

+13 −1
Original line number Diff line number Diff line
@@ -53,7 +53,8 @@ 


* Subnodes

The Venus video-codec node must contain two subnodes representing

video-decoder and video-encoder.

video-decoder and video-encoder, and one optional firmware subnode.

Firmware subnode is needed when the platform does not have TrustZone.



Every of video-encoder or video-decoder subnode should have:
@@ -79,6 +80,13 @@ Every of video-encoder or video-decoder subnode should have: 
		    power domain which is responsible for collapsing

		    and restoring power to the subcore.



The firmware subnode must have:



- iommus:

	Usage: required

	Value type: <prop-encoded-array>

	Definition: A list of phandle and IOMMU specifier pairs.



* An Example

	video-codec@1d00000 {

		compatible = "qcom,msm8916-venus";
@@ -105,4 +113,8 @@ Every of video-encoder or video-decoder subnode should have: 
			clock-names = "core";

			power-domains = <&mmcc VENUS_CORE1_GDSC>;

		};



		video-firmware {

			iommus = <&apps_iommu 0x10b2 0x0>;

		};

	};