dt-bindings: dma: ti: Add J721S2 BCDMA

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@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230505143929.28131-2-vaishnav.a@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml
index beecfe7a1732ae472528c98716f07f1fb877a37c..4ca300a42a99c2f60184318d9b7e8d5906872e44 100644 (file)
--- 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
@@ -151,7 +152,12 @@ allOf:
       required:
         - power-domains
 
-    else:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am64-dmss-bcdma
+    then:
       properties:
         reg:
           minItems: 5
@@ -168,6 +174,28 @@ allOf:
         - 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
+
 unevaluatedProperties: false
 
 examples: