linux-kernel - Re: [RFC PATCH v4 3/5] PCI: Check platform specific ECAM quirks

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Message-ID: <20160722121100.GN25086@rric.localdomain>
Date:	Fri, 22 Jul 2016 14:11:00 +0200
From:	Robert Richter <rric@...nel.org>
To:	Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:	Christopher Covington <cov@...eaurora.org>,
	Tomasz Nowicki <tn@...ihalf.com>, Duc Dang <dhdang@....com>,
	Bjorn Helgaas <helgaas@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <will.deacon@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Rafael Wysocki <rafael@...nel.org>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Sinan Kaya <okaya@...eaurora.org>,
	Jayachandran C <jchandra@...adcom.com>,
	Robert Richter <robert.richter@...iumnetworks.com>,
	Marcin Wojtas <mw@...ihalf.com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	David Daney <ddaney@...iumnetworks.com>,
	Yijing Wang <wangyijing@...wei.com>,
	Mark Salter <msalter@...hat.com>, linux-pci@...r.kernel.org,
	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
	Jon Masters <jcm@...hat.com>,
	Andrea Gallo <andrea.gallo@...aro.org>,
	Jeremy Linton <jeremy.linton@....com>,
	Dongdong Liu <liudongdong3@...wei.com>,
	Gabriele Paoloni <gabriele.paoloni@...wei.com>,
	Jeffrey Hugo <jhugo@...eaurora.org>
Subject: Re: [RFC PATCH v4 3/5] PCI: Check platform specific ECAM quirks

On 22.07.16 14:00:42, Ard Biesheuvel wrote:
> On 22 July 2016 at 13:38, Robert Richter <rric@...nel.org> wrote:

> > And, we should support some sort of MCFG_OEM_REVISION_ANY to move the
> > rev handling optional to pci_cfg_fixup::init().
> >
> 
> xxx_ANY implies 'wildcard', which we don't want in this code. The set
> of quirky hardware we intend to support is known, and wildcard
> matching makes it easier to circumvent our policy that from here on,
> i.e., that all ACPI/arm64 supported hardware shall adhere to the spec.

Fine with me, there shouln't be to many revs around to have a quirk
per rev.

-Robert