linux-kernel - Re: [PATCH] of/platform: Move platform devices under /sys/devices/platform

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Message-ID: <20141104160716.GA1630@kroah.com>
Date:	Tue, 4 Nov 2014 08:07:16 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Rob Herring <robh+dt@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH] of/platform: Move platform devices under
 /sys/devices/platform

On Tue, Nov 04, 2014 at 10:45:20AM +0000, Grant Likely wrote:
> Currently the devices created by drivers/of/platform.c get created at
> the root of /sys/devices. This goes against the typical pattern for
> sysfs where the top level /sys/devices structure contains categories of
> devices, and the structure of devices is placed below that. To fix this,
> make the code in drivers/of/platform.c follow the drivers/base/platform.c
> behaviour, and use &platform_bus as the default parent for all new
> platform_devices and amba_devices.
> 
> This change has been discussed for a long time, but nobody has actually
> acted on it. Userspace code that expects to find devices under a fixed
> /sys/devices/... path will be affected. It isn't /supposed/ to do that,
> but if anyone complains then I'll add a default-off workaround option to
> put them back into the root.
> 
> Signed-off-by: Grant Likely <grant.likely@...aro.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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