linux-kernel - Re: [PATCH 1/2] pci: Add IORESOURCE_BIT entry for PCIe ECAM resources.

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Message-Id: <95C66A63-9671-4AD5-9804-6647A305DB99@codeaurora.org>
Date:	Mon, 2 Jun 2014 15:43:02 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Rob Herring <robherring2@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH 1/2] pci: Add IORESOURCE_BIT entry for PCIe ECAM resources.


On Jun 2, 2014, at 2:15 PM, Arnd Bergmann <arnd@...db.de> wrote:

> On Monday 02 June 2014 13:09:08 Kumar Gala wrote:
>>> However, what do we do with the 2 cases that exist in upstream that
>>>> are using ranges for cfg space?
>>> 
>>> Ignore them in the core code? Make the specific host controller handle
>>> them I would think.
>> 
>> I just meant, should we ‘break’ their DTs and move them from using ranges to reg?
> 
> dw-pcie is used on a lot of systems, I think we should make the common
> part of that driver always handle config space in a common way, and
> move out the part that parses the ranges property into the individual
> soc-specific glue drivers that want to keep optional backwards compatibility
> with existing dtbs.
> 
> Which one is the other driver?
> 
> 	Arnd

Its imx6 and exynos, havent looked to see if dw-pcie is handling the parsing or not for them.

- k

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

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