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

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Message-ID: <50AF4E8F.1030406@intel.com>
Date:	Fri, 23 Nov 2012 12:23:11 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
CC:	Chris Ball <cjb@...top.org>, 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 22/11/12 23:24, Rafael J. Wysocki wrote:
> 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?

Mika and Lv Zheng are working on adding it to acpi_platform

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