Re: [PATCH v2 02/10] dt-bindings: ptp: Document TSCSS hardware on Qualcomm QDU1000 SoC

[Imran Shaik]

On 13-11-2026 12:35 pm, Krzysztof Kozlowski wrote:
> On 12/11/2026 10:32, Imran Shaik wrote:
> > > > +  The TSC block is a timestamp generator that maintains a running counter used
> > > > +  for system timekeeping, and is functional with just the AHB and counter
> > > > +  clocks.
> > > > +  The ETU block captures TSC timestamps for external hardware events. Each
> > > > +  ETU slice binds a slice number to an external event selector, and
> > > > +  generates its own interrupt when that event is triggered.
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    const: qcom,qdu1000-tscss
> > >
> > > I failed to spot the difference against your binding at patch #1. How do
> > > they differ?
> >
> > The ETU interrupt wiring between the QDU1000 and SA8775P/QCS8300 is
> > different.
> > The SA8775P/QCS8300 share one summary interrupt across all ETU slices,
> > and the QDU1000 has each slice with its own interrupt line. Due to this,
> > kept them as separate bindings.
> >
> > Can add them into one file with an if/then on compatible if you'd
> > prefer. Please let me know.
>
> I see, it's fine to keep them separate, but you need common schema to
> define common vendor properties.

Sure, I will introduce a common schema qcom,tscss.yaml with the shared
properties, and take care of overriding SoC specific constraints in per
SoC files.

Thanks,
Imran