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From: Arnd Bergmann <arnd@arndb.de>
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Cc: Mark Rutland <mark.rutland@arm.com>,
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Subject: Re: [PATCH 3/4] arm64: Juno: Add support for the PCIe host bridge on Juno R1
Date: Fri, 09 Oct 2015 17:49:18 +0200
Message-ID: <40550712.xdsq5nNSTG@wuerfel>
In-Reply-To: <20151009154408.GD21629@leverpostej>
References: <1444398323-17354-1-git-send-email-Liviu.Dudau@arm.com> <20151009141107.GD3394@e106497-lin.cambridge.arm.com> <20151009154408.GD21629@leverpostej>
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On Friday 09 October 2015 16:44:08 Mark Rutland wrote:
> On Fri, Oct 09, 2015 at 03:11:07PM +0100, Liviu Dudau wrote:
> > On Fri, Oct 09, 2015 at 08:54:33AM -0500, Rob Herring wrote:
> > Or maybe I can claim the use of the string on account on being the first on arm64 
> > 
> > I can add a vendor prefix if you want, but pci-host-generic is going to ignore it 
> > *because* it is trying to be a generic driver.
> 
> The point here is to have the string ready if we need it later, so it's
> fine that it's not used currently.
> 
> Rob's suggestion is that the compatible list should look something like:
> 
> compatible = "arm,juno-r1-pcie", "plda,xpressrich3", "pci-host-ecam-generic";
> 
> We can match on "pci-host-ecam-generic" for now (and hopefully forever),
> but if for some reason we need to special-case this host controller (or
> Juno's integration thereof), we can do that based on the compatible
> string.

Sounds good to me, it certainly can't hurt.

	Arnd