Re: [PATCH v6 13/33] dt-bindings: usb: dwc3: Add snps,num-hc-interrupters definition

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On Fri, Sep 15, 2023 at 05:43:45PM -0700, Wesley Cheng wrote:
> Hi Konrad,
> On 9/15/2023 5:35 PM, Konrad Dybcio wrote:
> > On 16.09.2023 02:10, Wesley Cheng wrote:
> > > Add a new definition for specifying how many XHCI secondary interrupters
> > > can be allocated.  XHCI in general can potentially support up to 1024
> > > interrupters, which some uses may want to limit depending on how many
> > > users utilize the interrupters.
> > > 
> > > Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
> > > ---
> > Any reason for a DWC3-specific property? Why not just
> > use the XHCI-common one from patch 14 and error out if
> > a value of more than 8 is found?
> > 

I'm pretty sure I said use the common one already...

> Not every XHCI plat user is going to be DWC3.  In case DWC3 is used, the
> DWC3 host driver is the one that populates and adds the XHCI plat device (no
> separate device node for XHCI), so that requires the DWC3 host to also
> populate properties for the XHCI device. (dwc3_host_init())

This binding references usb-xhci.yaml already, so any property from 
there is allowed. Linux needs to handle that regardless of what the 
driver structure/division looks like.


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