linux-kernel - [PATCH v1 2/3] dt-bindings: dma: sf-pdma: add new compatible name

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Message-ID: <20230922095039.74878-3-shravan.chippa@microchip.com>
Date:   Fri, 22 Sep 2023 15:20:38 +0530
From:   shravan chippa <shravan.chippa@...rochip.com>
To:     <green.wan@...ive.com>, <vkoul@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <palmer@...belt.com>,
        <paul.walmsley@...ive.com>, <conor+dt@...nel.org>,
        <palmer@...ive.com>
CC:     <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <nagasuresh.relli@...rochip.com>, <praveen.kumar@...rochip.com>,
        <shravan.chippa@...rochip.com>,
        Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v1 2/3] dt-bindings: dma: sf-pdma: add new compatible name

From: Shravan Chippa <shravan.chippa@...rochip.com>

add new compatible name microchip,mpfs-pdma to support out of order dma
transfers this will improve the dma throughput for mem-to-mem transfer

Signed-off-by: Shravan Chippa <shravan.chippa@...rochip.com>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../bindings/dma/sifive,fu540-c000-pdma.yaml         | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
index a1af0b906365..974467c4bacb 100644
--- a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
+++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
@@ -27,10 +27,14 @@ allOf:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - sifive,fu540-c000-pdma
-      - const: sifive,pdma0
+    oneOf:
+      - items:
+          - const: microchip,mpfs-pdma # Microchip out of order DMA transfer
+          - const: sifive,fu540-c000-pdma # Sifive in-order DMA transfer
+      - items:
+          - enum:
+              - sifive,fu540-c000-pdma
+          - const: sifive,pdma0
     description:
       Should be "sifive,<chip>-pdma" and "sifive,pdma<version>".
       Supported compatible strings are -
-- 
2.34.1