On Sun Jul 12 11:00:04 2026 +0800, Chen-Yu Tsai wrote:
> On the H6 SoC, the Video Engine has two memory ports, thus two IOMMU
> connections. The secondary one that is missing is likely used for
> reading reference frames. The newer H616 is the same. On the other
> hand, the D1 only has one memory port.
>
> Add the missing IOMMU connection for the Video Engine.
>
> Fixes: 62a8ccf3a248 ("arm64: dts: allwinner: h6: Fix Cedrus IOMMU usage")
> Reviewed-by: Jernej Skrabec <[email protected]>
> Acked-by: Rob Herring (Arm) <[email protected]>
> Signed-off-by: Chen-Yu Tsai <[email protected]>
> Signed-off-by: Nicolas Dufresne <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
.../media/allwinner,sun4i-a10-video-engine.yaml | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
---
diff --git
a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
index 01f2afa023f0..932043d7f0cc 100644
---
a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
+++
b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
@@ -55,7 +55,10 @@ properties:
description: Phandle to the device SRAM
iommus:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: VE port on IOMMU
+ - description: VE_R port on IOMMU
memory-region:
maxItems: 1
@@ -82,6 +85,22 @@ required:
- resets
- allwinner,sram
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun50i-h6-video-engine
+ then:
+ properties:
+ iommus:
+ minItems: 2
+ else:
+ properties:
+ iommus:
+ maxItems: 1
+
additionalProperties: false
examples:
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