linux-kernel - Re: [PATCH 3/3] spi: apple: Add driver for Apple SPI controller

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Message-ID: <YdREaCo5BXHqtoex@sirena.org.uk>
Date:   Tue, 4 Jan 2022 12:58:16 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Lukas Wunner <lukas@...ner.de>
Cc:     Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
        Rob Herring <robh+dt@...nel.org>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        linux-arm-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] spi: apple: Add driver for Apple SPI controller

On Sat, Jan 01, 2022 at 08:25:48AM +0100, Lukas Wunner wrote:

> This is especially important if there are slaves attached to the
> controller which perform SPI transfers in their ->remove hooks,
> e.g. to quiesce interrupts on the slaves.  Those transfers won't
> work the way you've structured the code now.

The client drivers shouldn't notice - their remove callbacks will have
completed before we start removing the controller.

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