linux-kernel - [PATCH v2] dt-bindings: dma: xilinx: Add power-domains to xlnx,zynqmp-dpdma

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Date:   Wed, 3 May 2023 10:00:20 +0200
From:   Michal Simek <michal.simek@....com>
To:     <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
        <michal.simek@...inx.com>, <git@...inx.com>
CC:     Hyun Kwon <hyun.kwon@...inx.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>, <devicetree@...r.kernel.org>,
        <dmaengine@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v2] dt-bindings: dma: xilinx: Add power-domains to xlnx,zynqmp-dpdma

DP DMA has own power domain that's why describe optional power-domain
property.

Signed-off-by: Michal Simek <michal.simek@....com>
---

Changes in v2:
- rewrite commit message - requested by Krzysztof

The commit b06112cd5e08 ("arm64: dts: zynqmp: Add power domain for the
DisplayPort DMA controller") added this property already in Linux that's
why the patch is also fixing dts_check warnings.

---
 .../devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
index 825294e3f0e8..f066f6983899 100644
--- a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
+++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
@@ -41,6 +41,9 @@ properties:
   clock-names:
     const: axi_clk
 
+  power-domains:
+    maxItems: 1
+
 required:
   - "#dma-cells"
   - compatible
-- 
2.36.1