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Date: Fri, 22 Jun 2018 11:24:14 +0800
From: Guodong Xu <guodong.xu@...aro.org>
To: vkoul@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
dan.j.williams@...el.com
Cc: liyu65@...ilicon.com, suzhuangluan@...ilicon.com,
xuhongtao8@...ilicon.com, zhongkaihua@...wei.com,
xuezhiliang@...ilicon.com, xupeng7@...wei.com,
sunliang10@...wei.com, fengbaopeng@...ilicon.com,
dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: k3dma: add optional property dma_min_chan
From: Li Yu <liyu65@...ilicon.com>
Add optional property dma_min_chan for k3dma.
Signed-off-by: Li Yu <liyu65@...ilicon.com>
---
Documentation/devicetree/bindings/dma/k3dma.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt
index 4945aeac4dc4..2fa1370c3173 100644
--- a/Documentation/devicetree/bindings/dma/k3dma.txt
+++ b/Documentation/devicetree/bindings/dma/k3dma.txt
@@ -12,6 +12,11 @@ Required properties:
have specific request line
- clocks: clock required
+Optional properties:
+- dma_min_chan: the minimum number of DMA channel which begin to use
+ the default value is 0, but in some platform is
+ configured 1, like hi3660 platform
+
Example:
Controller:
@@ -21,6 +26,7 @@ Controller:
#dma-cells = <1>;
dma-channels = <16>;
dma-requests = <27>;
+ dma_min_chan = <1>;
interrupts = <0 12 4>;
clocks = <&pclk>;
};
--
2.17.1
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