Messages in this thread | | | Date | Thu, 28 Jun 2018 11:30:34 +0530 | From | Vinod <> | Subject | Re: [PATCH 1/3] dt-bindings: k3dma: add optional property dma_min_chan |
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On 22-06-18, 11:24, Guodong Xu wrote: > From: Li Yu <liyu65@hisilicon.com> > > Add optional property dma_min_chan for k3dma. > > Signed-off-by: Li Yu <liyu65@hisilicon.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
Sorry I don't understand this property, we already have dma-channels which describes the channels in a controller. What is purpose of this ?
> + 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
-- ~Vinod
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