linux-kernel - Re: [PATCH v8 2/2] add new platform driver for PCI RC

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Date:	Fri, 05 Feb 2016 16:43:05 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Joao Pinto <Joao.Pinto@...opsys.com>
Cc:	Bjorn Helgaas <helgaas@...nel.org>, Vineet.Gupta1@...opsys.com,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-snps-arc@...ts.infradead.org, CARLOS.PALMINHA@...opsys.com,
	Alexey.Brodkin@...opsys.com, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org
Subject: Re: [PATCH v8 2/2] add new platform driver for PCI RC

On Friday 05 February 2016 14:51:39 Joao Pinto wrote:
> 
> It is a driver that is useful for PCIe RC prototyping and to be a reference
> platform driver for DesignWare PCIe RC, I don't know if merging some of the
> driver's code into pcie-designware is really necessary depends on the usefulness
> of it. I would suggest that bigger step to be done in a 2nd stage since I will
> be around to maintain what's necessary. Agree?
> 
> I made a patch that is applicable to Bjorn's host/pcie-synopsys that tries to
> match your suggestions and Bjorn's. Could you please comment check it?

I think it would be useful to do this as generic as possible, and you seem
to be the right person to integrate it into the generic driver as you have
access to the hardware documents. Normally the folks writing the drivers
are just guessing based on what little information they get out of manuals
or vendor-provided drivers, but I'm sure that not all of that makes sense.

	Arnd