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arm64: dts: allwinner: h6: Fix Cedrus IOMMU usage

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Now that the IOMMU driver has been introduced, it prevents any access from
a DMA master going through it that hasn't properly mapped the pages, and
that link is set up through the iommus property.

Unfortunately we forgot to add that property to the video engine node when
adding the IOMMU node, so now any DMA access is broken.

Fixes: b3a0a2f910 ("arm64: dts: allwinner: h6: Add IOMMU")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200628180804.79026-1-maxime@cerno.tech
This commit is contained in:
Maxime Ripard 2020-06-28 20:08:04 +02:00
parent 92025b90f1
commit 62a8ccf3a2
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3
Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
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@ -47,6 +47,9 @@ properties:
$ref: /schemas/types.yaml#/definitions/phandle-array
description: Phandle to the device SRAM
iommus:
maxItems: 1
memory-region:
description:
CMA pool to use for buffers allocation instead of the default

1
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
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@ -161,6 +161,7 @@ video-codec@1c0e000 {
resets = <&ccu RST_BUS_VE>;
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
allwinner,sram = <&ve_sram 1>;
iommus = <&iommu 3>;
};
gpu: gpu@1800000 {