dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma

The DMA controller needs two reset items to work properly on JH7110 SoC,
so there is need to constrain the items' value to 2, other platforms
have 1 reset item at most.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Walker Chen <walker.chen@starfivetech.com>
Link: https://lore.kernel.org/r/20230322094820.24738-2-walker.chen@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
index 5c81194..363cf8b 100644 (file)
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -20,6 +20,7 @@ properties:
     enum:
       - snps,axi-dma-1.01a
       - intel,kmb-axi-dma
+      - starfive,jh7110-axi-dma
 
   reg:
     minItems: 1
@@ -58,7 +59,8 @@ properties:
     maximum: 8
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   snps,dma-masters:
     description: |
@@ -109,6 +111,25 @@ required:
   - snps,priority
   - snps,block-size
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,jh7110-axi-dma
+then:
+  properties:
+    resets:
+      minItems: 2
+      items:
+        - description: AXI reset line
+        - description: AHB reset line
+        - description: module reset
+else:
+  properties:
+    resets:
+      maxItems: 1
+
 additionalProperties: false
 
 examples: