Hi Geert-san, > From: Geert Uytterhoeven, Sent: Thursday, April 16, 2020 4:50 PM > > Hi Shimoda-san, > > On Thu, Apr 16, 2020 at 4:04 AM Yoshihiro Shimoda > <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote: > > > From: Geert Uytterhoeven, Sent: Wednesday, April 15, 2020 10:56 PM > > <snip> > > > > --- /dev/null > > > > +++ b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.yaml > > > > + interrupts: > > > > + maxItems: 2 > > > > > > Is there a use case for specifying a single interrupt? > > > > No. All USB-DMAC of R-Car Gen2/3 and RZ/Gn has 2 channels. > > In case of R-Car Gen3, please refer to the Figure 75.1 USB-DMAC Block Diagram. > > These USB-DMACn have CH0 and CH1 > > Thanks for confirming! > > > > > + dma-channels: > > > > + maximum: 2 > > > > > > Is there a use case for specifying a single channel? > > > > > > > + > > > > + iommus: > > > > + maxItems: 2 > > > > > > Likewise? > > > > As I mentioned above, there is not a use case for specifying a single channel. > > Hence I think all of these should have "const: 2" or "minItems: 2". Thank you for the proposal. I got it. I'll fix it. Best regards, Yoshihiro Shimoda
