Thread (7 messages) 7 messages, 3 authors, 2018-07-11

Re: [PATCH v2 1/4] dt-bindings: k3dma: add optional property hisilicon,dma-min-chan

From: Rob Herring <robh@kernel.org>
Date: 2018-07-11 16:09:31
Also in: dmaengine, linux-arm-kernel, lkml

On Mon, Jul 09, 2018 at 04:04:38PM +0530, Vinod wrote:
On 06-07-18, 11:55, Guodong Xu wrote:
quoted
From: Li Yu <redacted>

Add optional property hisilicon,dma-min-chan for k3dma.

Signed-off-by: Li Yu <redacted>
Signed-off-by: Guodong Xu <redacted>
---
 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..f34202a80f3c 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:
+- hisilicon,dma-min-chan: the minimum DMA channel number which is usable
+		Default value is 0, but in some platform it is
+		configured 1, like in hi3660 platform
+
 Example:
 
 Controller:
@@ -21,6 +26,7 @@ Controller:
 			#dma-cells = <1>;
 			dma-channels = <16>;
 			dma-requests = <27>;
+			hisilicon,dma-min-chan = <1>;
Am still expecting this to be a mask
If so calling it 'min' doesn't make sense. And a mask should have 'mask' 
in the name.

Rob
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