linux-kernel - Re: [RFC PATCH 0/4] ACPI based PCI host driver with generic ECAM

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Date:	Mon, 28 Mar 2016 23:31:37 +0530
From:	Jayachandran C <jchandra@...adcom.com>
To:	Sinan Kaya <okaya@...eaurora.org>
Cc:	Gabriele Paoloni <gabriele.paoloni@...wei.com>,
	Bjorn Helgaas <helgaas@...nel.org>,
	Tomasz Nowicki <tn@...ihalf.com>,
	"rafael@...nel.org" <rafael@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <will.deacon@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	"jiang.liu@...ux.intel.com" <jiang.liu@...ux.intel.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	"robert.richter@...iumnetworks.com" 
	<robert.richter@...iumnetworks.com>,
	Marcin Wojtas <mw@...ihalf.com>,
	"Liviu.Dudau@....com" <Liviu.Dudau@....com>,
	David Daney <ddaney@...iumnetworks.com>,
	Wangyijing <wangyijing@...wei.com>,
	"Suravee.Suthikulpanit@....com" <Suravee.Suthikulpanit@....com>,
	"msalter@...hat.com" <msalter@...hat.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	Jon Masters <jcm@...hat.com>
Subject: Re: [RFC PATCH 0/4] ACPI based PCI host driver with generic ECAM

On Mon, Mar 28, 2016 at 7:12 PM, Sinan Kaya <okaya@...eaurora.org> wrote:
> Hi,
>
> On 3/23/2016 6:22 AM, Gabriele Paoloni wrote:
>> I had a look at your patchset and also in your git repo at the other
>> patches that you ported over from Tomasz; it seems that now we miss
>> a quirk mechanism to enable controller that are not fully ECAM.
>>
>> This was provided before by Tomasz in:
>> https://lkml.org/lkml/2016/2/16/410
>>
>> I think we should put something like that back in...

Like Tomasz mentioned in his mail, his approach does not work
for raw operations. I have added raw operations in may patchset,
so we have to come up with a new approach or decide that raw
operations can be dropped.

I am waiting for the overall acceptance of the patch set before
going further along this path

>>
>> Thanks
>>
>> Gab
>
> I was requested to test your patchset. I'll need this mechanism before
> I can start.

Please see above, we will need to look at the quirks again.

> Sinan

JC.