linux-kernel - Re: [PATCH 0/3] Add AMBA bus probing support to ACPI

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Date:	Thu, 22 Oct 2015 00:29:53 +0200
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	Al Stone <ahs3@...hat.com>
Cc:	Graeme Gregory <graeme.gregory@...aro.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	shannon.zhao@...aro.org
Subject: Re: [PATCH 0/3] Add AMBA bus probing support to ACPI

On Wed, Oct 21, 2015 at 6:41 PM, Al Stone <ahs3@...hat.com> wrote:
> On 09/30/2015 04:38 AM, Graeme Gregory wrote:
>> As discussed when Shannon Zhao sent a patch to add platform_device support
>> to pl061 driver. Russel and other maintainers prefered that ACPI learned
>> how to create AMBA devices rather than converting/adding platform_device
>> support to AMBA drivers.
>>
>> http://comments.gmane.org/gmane.linux.ports.arm.kernel/431364
>>
>> 1) Adds basic AMBA device probing support to ACPI, it uses a whitelist of
>> device IDs as the number of AMBA devices is limited. Currently the two ids
>> present are those used in QEMU for arm64.
>>
>> 2) Adds the plumbing into ACPI probe sequence.
>>
>> 3) From ACPI pl011 is only defined (SBSA document) to be in SBSA mode which has
>> reduced functionality. There may be a better method to do this that I have
>> overlooked.
>>
>> Thanks
>>
>> Graeme
>>
>> --
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>
> Any comments on these patches?  It's been awful quiet....

That's because of my limited review bandwidth.

I'm kind of in the middle of travel now, sorry about that.

Thanks,
Rafael
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