linux-kernel - Re: [PATCH v1 01/10] spi: pxa2xx: Drop ACPI_PTR() and of_match

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Date: Tue, 26 Mar 2024 18:25:16 +0000
From: Mark Brown <broonie@...nel.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH v1 01/10] spi: pxa2xx: Drop ACPI_PTR() and of_match_ptr()

On Tue, Mar 26, 2024 at 08:22:59PM +0200, Andy Shevchenko wrote:
> On Tue, Mar 26, 2024 at 06:16:28PM +0000, Mark Brown wrote:
> > On Tue, Mar 26, 2024 at 08:07:51PM +0200, Andy Shevchenko wrote:

> > > Drop rather useless use of ACPI_PTR() and of_match_ptr().
> > > It also removes the necessity to be dependent on ACPI and
> > > of.h inclusion.

> > I think the ACPI dependency there is as much about hiding the device on
> > irrelevant platforms as anything else, might be better replaced with an
> > x86 dependency though.

> The whole idea behind ACPI_PTR() (which seems following the of_match_ptr()
> implementation) looks premature. Now we have a lot of patches from DT people to
> remove of_match_ptr(), i.o.w. make the ID visible even on non-OF platforms.

> Having the list of supported IDs is not bad thing anyway as it might help
> to google for a device elsewhere, for example.

That's nice but I'm not sure what that has to do with the dependency on
ACPI?

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