linux-kernel - Re: [PATCH v2 2/2] of: Stop naming platform

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Message-ID: <4587381.5n3eMGkKaq@wuerfel>
Date:	Fri, 23 May 2014 16:07:08 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH v2 2/2] of: Stop naming platform_device using dcr address

On Friday 23 May 2014 08:36:09 Grant Likely wrote:
> There is now a way to ensure all platform devices get a unique name when
> populated from the device tree, and the DCR_NATIVE code path is broken
> anyway. PowerPC Cell (PS3) is the only platform that actually uses this
> path.  Most likely nobody will notice if it is killed. Remove the code
> and associated ugly #ifdef.
> 
> The user-visible impact of this patch is that any DCR device on Cell
> will get a new name in the /sys/devices hierarchy.

Isn't this used on all ppc440+ as well?

I don't think PS3 has it either, it should only be the second generation
Cell blade doing this, which uses ppc440-derived I/O devices.

We will probably see a bunch of the same devices on APM's X-gene ARM64
machines as well, but we don't have to maintain a stable device name for
those yet.

	Arnd
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