From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang7@gmail.com>,
Chunyan Zhang <zhang.lyra@gmail.com>,
dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH 1/3] dt-bindings: dmaengine: sprd: deprecate '#dma-channels'
Date: Wed, 27 Apr 2022 18:14:21 +0200 [thread overview]
Message-ID: <20220427161423.647534-2-krzysztof.kozlowski@linaro.org> (raw)
In-Reply-To: <20220427161423.647534-1-krzysztof.kozlowski@linaro.org>
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@linaro.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@20100000 {
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
next prev parent reply other threads:[~2022-04-27 16:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 16:14 [PATCH 0/3] dmaengine/ARM: use proper 'dma-channels/requests' properties Krzysztof Kozlowski
2022-04-27 16:14 ` Krzysztof Kozlowski [this message]
2022-04-27 18:26 ` [PATCH 1/3] dt-bindings: dmaengine: sprd: deprecate '#dma-channels' Rob Herring
2022-04-27 16:14 ` [PATCH 2/3] " Krzysztof Kozlowski
2022-04-27 16:14 ` [PATCH 3/3] arm64: dts: sprd: use new 'dma-channels' property Krzysztof Kozlowski
2022-04-28 7:35 ` Krzysztof Kozlowski
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