Re: [PATCH v2 2/3] dt-bindings: rtc: Add Mstar SSD202D RTC

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Hi,

Alexandre seems to be okay with the current (merged) dt-binding, what
do I do ? I can send a v3 for trivial-rtc.yaml that's not a problem
for me but both of you seem to
be disagree :)

Regards,
Romain


Le jeu. 14 sept. 2023 à 10:28, Conor Dooley
<conor.dooley@xxxxxxxxxxxxx> a écrit :
>
> On Thu, Sep 14, 2023 at 09:08:52AM +0200, Romain Perier wrote:
> > Le mer. 13 sept. 2023 à 20:30, Conor Dooley <conor@xxxxxxxxxx> a écrit :
> > >
> > > On Wed, Sep 13, 2023 at 05:16:05PM +0200, Romain Perier wrote:
> > > > Add YAML bindings for Mstar SSD202D RTC.
> > > >
> > > > Signed-off-by: Romain Perier <romain.perier@xxxxxxxxx>
> > > > ---
> > > >  .../bindings/rtc/mstar,ssd202d-rtc.yaml       | 35 +++++++++++++++++++
> > > >  1 file changed, 35 insertions(+)
> > > >  create mode 100644 Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml b/Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml
> > > > new file mode 100644
> > > > index 000000000000..4c1f22ef5a2c
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/rtc/mstar,ssd202d-rtc.yaml
> > > > @@ -0,0 +1,35 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: http://devicetree.org/schemas/rtc/mstar,ssd202d-rtc.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: Mstar SSD202D Real Time Clock
> > > > +
> > > > +maintainers:
> > > > +  - Daniel Palmer <daniel@xxxxxxxx>
> > > > +  - Romain Perier <romain.perier@xxxxxxxxx>
> > > > +
> > > > +allOf:
> > > > +  - $ref: rtc.yaml#
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    enum:
> > > > +      - mstar,ssd202d-rtc
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +required:
> > > > +  - compatible
> > > > +  - reg
> > >
> >
> > Hi,
> >
> > > So, this seems fine to me in isolation, but isn't this now the sort of
> > > thing that can be documented in trivial-rtc.yaml?
> > > Its only got compatible & reg, which seems to fit the bill for that.
> > >
> >
> > With the current state, it might make sense. However, currently, the
> > RTC hw block is mostly
> > reverse-engineered, the driver is not complete yet, things like
> > external irq or wakeup irq might arrive later (once we know how it is
> > wired up and used).
> > So the content of the dt-bindings might change and differ from a
> > simple "compatible & reg" requirement.
>
> It's always possible to move from that to a fully fledged binding at a
> later date. re: interrupts, trivial-rtc permits a single interrupt, so
> it'd still be suitable if the device only has one.
>
> Thanks,
> Conor.





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