On 22-06-18, 11:24, Guodong Xu wrote: > From: Li Yu <[email protected]> > > Add optional property dma_min_chan for k3dma. > > Signed-off-by: Li Yu <[email protected]> > --- > 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
