On Wed Jul 22 19:11:18 2026 +0530, Vikash Garodia wrote:
> Update the memory-region property to support two regions:
> 1. Firmware-loaded codec carveout (existing)
> 2. IOMMU IOVA reservation region (new)
>
> The IOMMU IOVA reservation region is required to restrict usage of
> specific IOVA memory range. For example, VPU restricts usage of 600MB
> for specific streams, which could otherwise lead to device crash. This
> change allows platforms to define separate memory regions for codec
> carveout and IOVA restrictions.
> This schema update supports existing DTS having single memory-region,
> thereby allowing gradual migration of DTS to support two memory region.
>
> Signed-off-by: Vikash Garodia <[email protected]>
> Reviewed-by: Bryan O'Donoghue <[email protected]>
> Reviewed-by: Krzysztof Kozlowski <[email protected]>
> Reviewed-by: Bryan O'Donoghue <[email protected]>
> Signed-off-by: Bryan O'Donoghue <[email protected]>
Patch committed.
Thanks,
Bryan O'Donoghue
Documentation/devicetree/bindings/media/qcom,venus-common.yaml | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/Documentation/devicetree/bindings/media/qcom,venus-common.yaml
b/Documentation/devicetree/bindings/media/qcom,venus-common.yaml
index 59a3fde846d2..0be2f9119e78 100644
--- a/Documentation/devicetree/bindings/media/qcom,venus-common.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,venus-common.yaml
@@ -37,7 +37,10 @@ properties:
maxItems: 20
memory-region:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: Firmware-loaded codec carveout
+ - description: IOMMU IOVA reservation region
power-domains:
minItems: 1
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