[PATCH] dt-bindings: reserved-memory: Add restricted-dma-pool constraints

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The "restricted-dma-pool" definition prohibits combination with either
of the "no-map" and "reusable" properties, but this is only stated in
the description text. Add those constraints to the schema so we can
properly validate them.

Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx>
---
 .../bindings/reserved-memory/shared-dma-pool.yaml   | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/reserved-memory/shared-dma-pool.yaml b/Documentation/devicetree/bindings/reserved-memory/shared-dma-pool.yaml
index a4bf757d6881..01385581f663 100644
--- a/Documentation/devicetree/bindings/reserved-memory/shared-dma-pool.yaml
+++ b/Documentation/devicetree/bindings/reserved-memory/shared-dma-pool.yaml
@@ -56,6 +56,19 @@ properties:
       If this property is present, then Linux will use the region for
       the default pool of the consistent DMA allocator.
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: restricted-dma-pool
+then:
+  not:
+    anyOf:
+      - required:
+          - no-map
+      - required:
+          - reusable
+
 unevaluatedProperties: false
 
 examples:
-- 
2.28.0.dirty




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