linux-kernel - [PATCH 0/2] Winbond driver as PNP

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Message-Id: <200907091538.21685.bjorn.helgaas@hp.com>
Date:	Thu, 9 Jul 2009 15:38:21 -0600
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	David Härdeman <david@...deman.nu>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-input@...r.kernel.org, jbarnes@...tuousgeek.org,
	"Len Brown" <lenb@...nel.org>
Subject: [PATCH 0/2] Winbond driver as PNP

On Wednesday 08 July 2009 10:52:19 am Bjorn Helgaas wrote:
> On Wednesday 01 July 2009 02:20:59 am David Härdeman wrote:
> > On Wed, July 1, 2009 01:11, Bjorn Helgaas wrote:
> > > The winbond driver does not use any ACPI-specific functionality, so
> > > it might be simpler to write it as a PNP driver (which would depend
> > > on PNPACPI, of course).
> > 
> > As far as I could tell from a quick look at include/linux/pnp.h, a
> > pnp_driver doesn't seem to have any .shutdown methods either, so I'm not
> > sure how it would help?
> 
> PNPACPI parses the device resources for you, so you could get rid
> of the _CRS stuff in your driver.
> 
> The only reason PNP and ACPI don't have .shutdown is because nobody
> has needed it yet.  If you need it (and it sounds like you do), I
> think the cleanest thing would be to add it to PNP and turn your
> driver into a PNP driver.

Here are two sample patches to show you what I was suggesting.  These
apply on top of the two Winbond patches currently in -mm.
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