linux-kernel - Re: [PATCH v3] of: Output devicetree alias names in uevent

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Date:	Wed, 19 Dec 2012 11:26:55 +0000
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Stepan Moskovchenko <stepanm@...eaurora.org>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	David Brown <davidb@...eaurora.org>, mbohan@...eaurora.org,
	Stepan Moskovchenko <stepanm@...eaurora.org>
Subject: Re: [PATCH v3] of: Output devicetree alias names in uevent

On Thu,  6 Dec 2012 14:55:41 -0800, Stepan Moskovchenko <stepanm@...eaurora.org> wrote:
> In some situations, userspace may want to resolve a
> device by function and logical number (ie, "serial0")
> rather than by the base address or full device path. Being
> able to resolve a device by alias frees userspace from the
> burden of otherwise having to maintain a mapping between
> device addresses and their logical assignments on each
> platform when multiple instances of the same hardware block
> are present in the system.
> 
> Although the uevent device attribute contains devicetree
> compatible information and the full device path, the uevent
> does not list the alises that may have been defined for the
> device.
> 
> Signed-off-by: Stepan Moskovchenko <stepanm@...eaurora.org>

I've picked this up into my devicetree/next branch. It will get pushed out to linux-next after the merge window closes.

Thanks,
g.

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