[PATCH v5 1/4] dt-bindings: media: qcom,venus-common: Add IOMMU IOVA reservation region

[Vikash Garodia <vikash.garodia@oss.qualcomm.com>]

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 <vikash.garodia@oss.qualcomm.com>
---
 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 59a3fde846d2196ab1e4588eb396012ba6860712..0be2f9119e78233928d23af86836ac294aa769ee 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

-- 
2.34.1