linux-kernel - Re: [PATCH v1 3/6] spi: pxa2xx: Remove no more needed PCI ID table

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Message-ID: <Y1F2a6CR+9sY66Zz@sirena.org.uk>
Date:   Thu, 20 Oct 2022 17:25:15 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>
Subject: Re: [PATCH v1 3/6] spi: pxa2xx: Remove no more needed PCI ID table

On Thu, Oct 20, 2022 at 07:18:23PM +0300, Andy Shevchenko wrote:
> On Wed, Oct 19, 2022 at 04:50:38PM +0100, Mark Brown wrote:

> > For example a check that the ID is one we know about.  IIRC that bit of
> > context looked like a tree of if statements with no particular
> > validation.

> But isn't it guaranteed to be handled by device core, i.e. we won't get driver
> even enumerated if ID is unknown to us.

That's true currently since you're matching based on ACPI ID and then
have the lookup done with the ID information in the acpi_device_id table
but IIRC the patch was replacing that with some device property stuff.

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