[PATCH] ARM: w1-gpio: fix erroneous gpio requests

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Tue Mar 12 16:24:20 EDT 2013

On Mar 13, 2013, at 4:20 AM, Greg Kroah-Hartman <gregkh at linuxfoundation.org> wrote:

> On Tue, Mar 12, 2013 at 08:21:34PM +0100, Johan Hovold wrote:
>> Fix regression introduced by commit d2323cf773 ("onewire: w1-gpio: add
>> ext_pullup_enable pin in platform data") which added a gpio entry to the
>> platform data, but did not add the required initialisers to the board
>> files using it. Consequently, the driver would request gpio 0 at probe,
>> which could break other uses of the corresponding pin.
>> On AT91 requesting gpio 0 changes the pin muxing for PIOA0, which, for
>> instance, breaks SPI0 on at91sam9g20.

not only on AT91, 0 is a valid gpio
>> Cc: stable <stable at vger.kernel.org>
>> Signed-off-by: Johan Hovold <jhovold at gmail.com>
>> ---
>> Not sure whose tree this should go in through, so adding relevant maintainers
>> and authors as CC.
> As I took the offending patch, I might as well take this fix for it as
> well.
> Unless anyone else objects?
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>

Best Regards,

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