gpio_request build fail on linux-next bisected

Hi Steven,

This linux-next build fail:

http://kisskb.ellerman.id.au/kisskb/buildresult/10940572/

which fails like this:

CC arch/blackfin/mach-bf533/boards/stamp.o
arch/blackfin/mach-bf533/boards/stamp.c: In function 'stamp_init':
arch/blackfin/mach-bf533/boards/stamp.c:874:2: error: implicit declaration of function 'gpio_request' arch/blackfin/mach-bf533/boards/stamp.c:876:3: error: implicit declaration of function 'gpio_direction_output' arch/blackfin/mach-bf533/boards/stamp.c:877:3: error: implicit declaration of function 'gpio_free' make[1]: *** [arch/blackfin/mach-bf533/boards/stamp.o] Error 1

...bisects as follows:

a0c1fb2ea74dedecd303fb0388e21ca869239db2 is the first bad commit commit a0c1fb2ea74dedecd303fb0388e21ca869239db2

Author: Steven Miao <[email protected]>
Date:   Mon Mar 17 13:36:51 2014 +0800

blackfin: portmux: cleanup head file

drop unused head file
change pinmux request/free macro for backward compatiblity add function declaration

:040000 040000 6bf439b9ec79ab17c87afe720ef23e2a01ee1c1f 6a67fdde171be53f3bfd0fd290f270fbca104542 M arch
bisect run success

Since the failure is now in mainline/master, the fix should be aimed at rc3 and not be specific to linux-next.

Thanks,
Paul.