[PATCH] ARM: OMAP2+: gpmc-smsc911x: only register regulator for first instance

[Kevin Hilman]

Hi Arnd,

Arnd Bergmann <arnd at arndb.de> writes:

> On Wednesday 07 March 2012, Kevin Hilman wrote:
>> commit e4b0b2cbbb (ARM: OMAP2+: gpmc-smsc911x: add required smsc911x
>> regulators) added regulators which are registered during
>> gpmc_smsc911x_init().  However, some platforms (OMAP3/Overo) have more
>> than one instance of the SMSC911x and result in attempting to register
>> the same regulator more than once which causes a panic().
>> 
>> Fix this by only registering the regulator when the platform_data id
>> field is zero, indicating its the first instance.
>> 
>> Cc: Matt Porter <mporter at ti.com>
>> Signed-off-by: Kevin Hilman <khilman at ti.com>
>
> It seems that both Olof and I forgot to forward this one to Linus.
>
> If it's ok for you, I'll add it to the fixes branch for v3.4 now
> and mark it for backporting to v3.3-stable.

A slightly different version of this is already in linux-next as commit
bb60424af517d6e6148505fb5ef256caa91b5b43.

It was in your 'fixes' branch, and was merged by Olaf from Tony on 3/13:
Merge branch 'fix-smsc911x-regulator' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Kevin