On Wed, Jul 4, 2018 at 2:54 AM Rob Herring <[email protected]> wrote: > > On Fri, Jun 22, 2018 at 11:24:14AM +0800, 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/t 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 > > Can't this be implied by the compatible? >
No. "hisilicon,k3-dma-1.0" can work with series of hisilicon kirin SoC. And each has different reservation of channels for on-chip coprocessors. > If not, needs vendor prefix and don't use '_' in property names. > Sure, thanks. Will change that when design new property. As Vinod suggested, it makes sense to change this to a mask. -Guodong > Rob
