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

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Message-ID: <20230503065303.16674-1-vaishnav.a@ti.com>
Date:   Wed, 3 May 2023 12:23:02 +0530
From:   Vaishnav Achath <vaishnav.a@...com>
To:     <peter.ujfalusi@...il.com>, <vkoul@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>
CC:     <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <j-choudhary@...com>,
        <u-kumar1@...com>, <vigneshr@...com>, <vaishnav.a@...com>
Subject: [PATCH 1/2] 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@...com>
---
 .../devicetree/bindings/dma/ti/k3-bcdma.yaml  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml
index beecfe7a1732..5ca9581a66f4 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
@@ -150,7 +151,27 @@ allOf:
 
       required:
         - power-domains
+  - 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:
-- 
2.17.1