Re: [PATCH v1 1/3] dt-bindings: iio: light: al3010: add al3000a support

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On Fri, Feb 14, 2025 at 08:21:03AM +0200, Svyatoslav Ryhel wrote:
> чт, 13 лют. 2025 р. о 22:15 Conor Dooley <conor@xxxxxxxxxx> пише:
> >
> > On Wed, Feb 12, 2025 at 09:39:06PM +0200, Svyatoslav Ryhel wrote:
> > > ср, 12 лют. 2025 р. о 21:20 Conor Dooley <conor@xxxxxxxxxx> пише:
> > > >
> > > > On Wed, Feb 12, 2025 at 08:46:55AM +0200, Svyatoslav Ryhel wrote:
> > > > > AL3000a is an ambient light sensor quite closely related to
> > > > > exising AL3010 and can re-use exising schema for AL3010.
> > > >
> > > > Quite close you say, but the driver is entirely different it seems. How
> > > > closely related is the hardware itself?
> > > >
> > >
> > > Well, I can simply duplicate al3010 or al3320a schema if re-using
> > > schema is not allowed. AL3000a has no available datasheet online.
> > > Downstream code for al3000a and al3010 seems to have same principles,
> > > apart from light measurements.
> >
> > It's probably more of a question as to why you're duplicating the driver
> > for them, rather than telling you not to put both bindings together.
> > That said, information on what's actually different is helpful in the
> > binding, to explain why you're not using a fallback compatible etc.
> >
> 
> Quoting writing-bindings.rst:
> DON'T refer to Linux or "device driver" in bindings. Bindings should
> be based on what the hardware has, not what an OS and driver currently
> support.

No need to quite that back at me, I'm the one usually attempting to
enforce these things. I just expect more information about the
similiarties/differences when you're content splitting into two drivers
but want to reuse the same binding.

> 
> From all available data, hw configuration of al3000a closely matches
> al3010 and seems to be part of same sensor lineup. It is not
> prohibited to add new compatibles to existing schema. Schema does not
> take in account way of processing data generated by sensor and this is
> the main difference between al3000a and al3010

Please mention this in your commit message.

Cheers,
Conor.

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