linux-kernel - [PATCH v2 1/3] dt-bindings: dmaengine: sprd: deprecate '#dma-channels'

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Date:   Tue,  3 May 2022 08:51:45 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v2 1/3] dt-bindings: dmaengine: sprd: deprecate '#dma-channels'

The generic property, used in most of the drivers and defined in generic
dma-common DT bindings, is 'dma-channels'.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 Documentation/devicetree/bindings/dma/sprd-dma.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/sprd-dma.txt b/Documentation/devicetree/bindings/dma/sprd-dma.txt
index adccea9941f1..c7e9b5fd50e7 100644
--- a/Documentation/devicetree/bindings/dma/sprd-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sprd-dma.txt
@@ -8,10 +8,13 @@ Required properties:
 - interrupts: Should contain one interrupt shared by all channel.
 - #dma-cells: must be <1>. Used to represent the number of integer
 	cells in the dmas property of client device.
-- #dma-channels : Number of DMA channels supported. Should be 32.
+- dma-channels : Number of DMA channels supported. Should be 32.
 - clock-names: Should contain the clock of the DMA controller.
 - clocks: Should contain a clock specifier for each entry in clock-names.
 
+Deprecated properties:
+- #dma-channels : Number of DMA channels supported. Should be 32.
+
 Example:
 
 Controller:
@@ -20,7 +23,7 @@ apdma: dma-controller@...00000 {
 	reg = <0x20100000 0x4000>;
 	interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
 	#dma-cells = <1>;
-	#dma-channels = <32>;
+	dma-channels = <32>;
 	clock-names = "enable";
 	clocks = <&clk_ap_ahb_gates 5>;
 };
-- 
2.32.0