Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752481AbbBRE5N (ORCPT ); Tue, 17 Feb 2015 23:57:13 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:38870 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751432AbbBRE5L (ORCPT ); Tue, 17 Feb 2015 23:57:11 -0500 Date: Tue, 17 Feb 2015 20:57:08 -0800 From: Greg Kroah-Hartman To: Rob Herring Cc: Benjamin Herrenschmidt , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Arnd Bergmann , Olof Johansson , Grant Likely , Jeremy Kerr Subject: Re: [PATCH 2/2 v3] drivers/core/of: Add symlink to device-tree from devices with an OF node Message-ID: <20150218045708.GC3222@kroah.com> References: <1415342031.4925.27.camel@kernel.crashing.org> <1415342117.4925.29.camel@kernel.crashing.org> <1415596626.5769.14.camel@kernel.crashing.org> <1424219118.21410.111.camel@kernel.crashing.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1733 Lines: 38 On Tue, Feb 17, 2015 at 07:07:14PM -0600, Rob Herring wrote: > On Tue, Feb 17, 2015 at 6:25 PM, Benjamin Herrenschmidt > wrote: > > So I've been annoyed lately with having a bunch of devices such as i2c > > eeproms (for use by VPDs, server world !) and other bits and pieces that > > I want to be able to identify from userspace, and possibly provide > > additional data about from FW. > > > > Basically, it boils down to correlating the sysfs device with the OF > > tree device node, so that user space can use device-tree info such as > > additional "location" or "label" (or whatever else we can come up with) > > propreties to identify a given device, or get some attributes of use > > about it, etc... > > > > Now, so far, we've done that in some subsystem in a fairly ad-hoc basis > > using "devspec" properties. For example, PCI creates them if it can > > correlate the probed device with a DT node. Some powerpc specific busses > > do that too. > > > > However, i2c doesn't and it would be nice to have something more generic > > since technically any device can have a corresponding device tree node. > > > > This patch adds an "of_node" symlink to devices that have a non-NULL > > dev->of_node pointer, the patch is pretty trivial and seems to work just > > fine for me. > > > > Signed-off-by: Benjamin Herrenschmidt > > Acked-by: Rob Herring Thanks, I'll queue these up after 3.20-rc1 is out. greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/