linux-kernel - Re: [PATCH] spi: spi-fsl-dspi: Add ACPI support

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Message-ID: <20200826183603.GP4965@sirena.org.uk>
Date:   Wed, 26 Aug 2020 19:36:03 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Kuldip Dwivedi <kuldip.dwivedi@...esoftware.com>,
        Qiang Zhao <qiang.zhao@....com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Pankaj Bansal <pankaj.bansal@....com>,
        Varun Sethi <V.Sethi@....com>,
        Tanveer Alam <tanveer.alam@...esoftware.com>
Subject: Re: [PATCH] spi: spi-fsl-dspi: Add ACPI support

On Wed, Aug 26, 2020 at 09:30:44PM +0300, Vladimir Oltean wrote:
> On Wed, Aug 26, 2020 at 06:02:05PM +0100, Mark Brown wrote:

> > That's not something that it's particularly idiomatic to actually use in
> > ACPI and you end up with the same namespacing problem assigning IDs so
> > I'm not sure it makes life any better.

> So what's the idiomatic thing to do in this case, allocate the first
> free PNP ID now for DSPI controller on LS2085A, then another one for
> DSPI on LX2160A later, etc etc?

AFAICT yes, assuming you don't make it look like a PCI device and
enumerate that way which is more how these things more normally end up
getting done.

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