linux-kernel - Re: [PATCH 2/3] spi / ACPI: add ACPI enumeration support

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Date:	Mon, 5 Nov 2012 12:13:49 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, lenb@...nel.org,
	rafael.j.wysocki@...el.com, grant.likely@...retlab.ca,
	linus.walleij@...aro.org, khali@...ux-fr.org, ben-linux@...ff.org,
	w.sang@...gutronix.de, mathias.nyman@...ux.intel.com,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH 2/3] spi / ACPI: add ACPI enumeration support

On Mon, Nov 05, 2012 at 01:03:22PM +0200, Mika Westerberg wrote:
> On Mon, Nov 05, 2012 at 11:54:55AM +0100, Mark Brown wrote:
> > On Sat, Nov 03, 2012 at 09:46:32AM +0200, Mika Westerberg wrote:

> > > +	strlcpy(spi->modalias, acpi_device_hid(adev), sizeof(spi->modalias));
> > > +	if (info.gsi >= 0)
> > > +		spi->irq = acpi_register_gsi(&adev->dev, info.gsi,
> > > +					     info.triggering, info.polarity);
> > > +	request_module(spi->modalias);

> > request_module()?  Why?

> The DT code does the same. I have no idea why it is there, really :-)

> I can remove it in the next version if you think it is not needed.

Well, if you can't identify what it does...

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