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2022-11-16media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference propertyChen-Yu Tsai
The Hantro G2 video decoder block sits behind an IOMMU. The device tree binding needs a property to reference it. Without a reference for the implementation to properly configure the IOMMU, it will fault and cause the video decoder to fail. Add an "iommus" property for referring to the IOMMU port. The master ID in the example is taken from the IOMMU fault error message on Linux, and the number seems to match the order in the user manual's IOMMU diagram. Fixes: fd6be12716c4 ("media: dt-bindings: allwinner: document H6 Hantro G2 binding") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20221115090644.3602573-2-wenst@chromium.org Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2021-12-16media: dt-bindings: allwinner: document H6 Hantro G2 bindingJernej Skrabec
Allwinner H6 contains older Hantro G2 core, primarly used for VP9 video decoding. It's unclear for now if HEVC is also supported. Describe its binding. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>