linux-kernel - Re: [PATCH] PCI: Remove not needed check in disable aspm link

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Message-ID: <1371245432.2490.3.camel@x230>
Date:	Fri, 14 Jun 2013 21:30:32 +0000
From:	Matthew Garrett <matthew.garrett@...ula.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Yinghai Lu <yinghai@...nel.org>, Jiang Liu <jiang.liu@...wei.com>,
	"Roman Yepishev" <roman.yepishev@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Jussi Kivilinna <jussi.kivilinna@....fi>
Subject: Re: [PATCH] PCI: Remove not needed check in disable aspm link

On Fri, 2013-06-14 at 15:26 -0600, Bjorn Helgaas wrote:

> I did find the Atheros Windows driver for the AOA150 on the Acer
> website [3], and the .INF file has several interesting mentions of
> ASPM, but I don't know what they mean.

They're not the standard functions, so it's possible that the Windows
driver for this hardware disables ASPM via its own register writes.

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