[PATCH v2 1/2] dt-bindings: dma: ti: Add J721S2 BCDMA

[Vaishnav Achath]

Add bindings for J721S2 BCDMA instance dedicated for Camera
Serial Interface. Unlike AM62A CSI BCDMA, this instance has RX
and TX channels but lacks block copy channels.

Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
---

V1->V2:
     * Move J721S2 BCDMA entry to else condition to avoid failure
     with AM62A BCDMA.

 .../devicetree/bindings/dma/ti/k3-bcdma.yaml  | 54 +++++++++++++------
 1 file changed, 39 insertions(+), 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml
index beecfe7a1732..54d4b8e0c8ce 100644
--- a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml
+++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml
@@ -33,6 +33,7 @@ properties:
     enum:
       - ti,am62a-dmss-bcdma-csirx
       - ti,am64-dmss-bcdma
+      - ti,j721s2-dmss-bcdma-csi
 
   reg:
     minItems: 3
@@ -152,21 +153,44 @@ allOf:
         - power-domains
 
     else:
-      properties:
-        reg:
-          minItems: 5
-
-        reg-names:
-          items:
-            - const: gcfg
-            - const: bchanrt
-            - const: rchanrt
-            - const: tchanrt
-            - const: ringrt
-
-      required:
-        - ti,sci-rm-range-bchan
-        - ti,sci-rm-range-tchan
+      if:
+        properties:
+          compatible:
+            contains:
+              const: ti,j721s2-dmss-bcdma-csi
+      then:
+        properties:
+          ti,sci-rm-range-bchan: false
+
+          reg:
+            maxItems: 4
+
+          reg-names:
+            items:
+              - const: gcfg
+              - const: rchanrt
+              - const: tchanrt
+              - const: ringrt
+
+        required:
+          - ti,sci-rm-range-tchan
+
+      else:
+        properties:
+          reg:
+            minItems: 5
+
+          reg-names:
+            items:
+              - const: gcfg
+              - const: bchanrt
+              - const: rchanrt
+              - const: tchanrt
+              - const: ringrt
+
+        required:
+          - ti,sci-rm-range-bchan
+          - ti,sci-rm-range-tchan
 
 unevaluatedProperties: false
 
-- 
2.17.1