RE: [PATCH v3 0/6] firmware: arm_scmi: Add SCMI v3.2 pincontrol protocol basic support

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> Subject: Re: [PATCH v3 0/6] firmware: arm_scmi: Add SCMI v3.2 pincontrol
> protocol basic support
> 
> On Mon, Jan 29, 2024 at 1:37 PM Peng Fan <peng.fan@xxxxxxxxxxx> wrote:
> 
> > And for i.MX95 OEM extenstion, do you have any suggestions?
> > I have two points:
> > 1. use vendor compatible. This would also benefit when supporting
> > vendor protocol.
> > 2. Introduce a property saying supporting-generic-pinconf
> >
> > How do you think?
> 
> While I don't know how OEM extensions to SCMI were designed, the pin
> control subsystem has the philosophy that extensions are for minor fringe
> stuff, such as a pin config option that no other silicon is using and thus have
> no use for anyone else. Well that is actually all the custom extensions we
> have.
> (This notion is even carried over to SCMI pinctrl.)
> 
> The i.MX95 OEM extension is really odd to me, it looks like a
> reimplementation of the core aspects of SCMI pin control, and looks much
> more like the old i.MX drivers than like the SCMI driver.

i.MX SCMI pin protocol conf settings follows non-SCMI pin conf settings.

> 
> But I sure cannot speak of what is allowed in SCMI OEM extensions or not.

+ SPEC owner, Souvik. Any comments?

Thanks,
Peng.

> 
> Yours,
> Linus Walleij




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