[PATCH v2] dt-bindings: i2c: renesas,rcar-i2c: allow 6 DMA channels

R-Car Gen5 can make use of it.

Signed-off-by: Wolfram Sang <[email protected]>
---

Change since v1: add check for limit on Gen3/4.

 .../bindings/i2c/renesas,rcar-i2c.yaml         | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml b/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
index f9ede03c3287..bfd486be0109 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
@@ -83,14 +83,14 @@ properties:
 
   dmas:
     minItems: 2
-    maxItems: 4
+    maxItems: 6
     description:
       Must contain a list of pairs of references to DMA specifiers, one for
       transmission, and one for reception.
 
   dma-names:
     minItems: 2
-    maxItems: 4
+    maxItems: 6
     items:
       enum:
         - tx
@@ -137,6 +137,20 @@ allOf:
         dmas: false
         dma-names: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,rcar-gen3-i2c
+              - renesas,rcar-gen4-i2c
+    then:
+      properties:
+        dmas:
+          maxItems: 4
+        dma-names:
+          maxItems: 4
+
   - if:
       properties:
         compatible:
-- 
2.47.3