linux-kernel - Re: [PATCH 0/3] Add SDHCI ACPI driver

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Message-ID: <3578053.jWYihc5IJI@vostro.rjw.lan>
Date:	Thu, 22 Nov 2012 22:24:33 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Adrian Hunter <adrian.hunter@...el.com>
Cc:	Chris Ball <cjb@...top.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	linux-mmc@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] Add SDHCI ACPI driver

On Thursday, November 22, 2012 04:46:10 PM Adrian Hunter wrote:
> On 22/11/12 15:55, Chris Ball wrote:
> > Hi,
> > 
> > On Thu, Nov 22 2012, Adrian Hunter wrote:
> >> Here is SDHCI ACPI driver.  It is dependent on new ACPI Platform support
> >> so I suggest Rafael takes the patches with Chris' Ack.
> >>
> >> Please note that I would prefer this to be queued for 3.8
> > 
> > Looks fine:
> > 
> > Acked-by: Chris Ball <cjb@...top.org>
> 
> Thank you!
> 
> > 
> > I have some dumb questions, though -- what kind of platforms ship with
> > these devices?  Do they ever have the controller on PCI too, and what
> > happens with sdhci-pci vs. sdhci-acpi in that case?
> 
> Since the arrival of ACPI5, platform devices can be configured using ACPI
> tables.  PCI can also be used, but the firmware ensures that the same
> device is not enumerated via both ACPI and PCI.
> 
> Rafael can you take these patches?

Well, I'd prefer pnpacpi/core.c to actually use acpi_platform_device_ids[]
directly in addition to excluded_id_list[], so that duplicate entries don't
have to be added to the both of them.

Also, I wonder if you really don't want to use ACPI PM and if you don't,
then why?

Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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