linux-kernel - [PATCH 1/2] dt-bindings: dma: altera-msgdma: make response port optional

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Date:   Thu, 17 Jun 2021 21:52:32 +0200
From:   Olivier Dautricourt <olivier.dautricourt@...lia.com>
To:     Rob Herring <robh+dt@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Stefan Roese <sr@...x.de>
Cc:     Olivier Dautricourt <olivier.dautricourt@...lia.com>,
        dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: dma: altera-msgdma: make response port
 optional

Response port is not required in some configuration of the IP core.

Signed-off-by: Olivier Dautricourt <olivier.dautricourt@...lia.com>
---
 Documentation/devicetree/bindings/dma/altr,msgdma.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/altr,msgdma.yaml b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
index a4f9fe23dcd9..b193ee2db4a7 100644
--- a/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
+++ b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
@@ -24,13 +24,15 @@ properties:
     items:
       - description: Control and Status Register Slave Port
       - description: Descriptor Slave Port
-      - description: Response Slave Port
+      - description: Response Slave Port (Optional)
+    minItems: 2

   reg-names:
     items:
       - const: csr
       - const: desc
       - const: resp
+    minItems: 2

   interrupts:
     maxItems: 1
--
2.31.0.rc2