linux-kernel - Re: [PATCH 1/6] toshiba_acpi: Convert to use acpi

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Message-ID: <20110921153507.GB26436@srcf.ucam.org>
Date:	Wed, 21 Sep 2011 16:35:07 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Corentin Chary <corentin.chary@...il.com>
Cc:	Seth Forshee <seth.forshee@...onical.com>,
	Azael Avalos <coproscefalo@...il.com>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] toshiba_acpi: Convert to use acpi_driver

On Wed, Sep 21, 2011 at 09:28:30AM +0200, Corentin Chary wrote:
> On Tue, Sep 20, 2011 at 11:55 PM, Seth Forshee
> <seth.forshee@...onical.com> wrote:
> > Changes toshiba_acpi to register an acpi driver and eliminates the
> > platform device it was using.
> 
> Why to you want to remove the platform device ? If you want to create
> a sysfs interface later, you'll probably need it. Most of the platform
> driver I know only use the acpi_device to send proc/netlink events and
> the platform_device is used everywhere else. (And anyway, it's an x86
> *platform* driver, not a pure acpi driver).

There's no hard requirement for a platform device, and given that it's 
purely using ACPI methods it arguably *is* a pure ACPI driver - Toshiba 
could use the same interface on an ARM device, if they were feeling 
excessively enthusiastic. But I've no strong feelings either way.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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