Input: bfin_rotary - use generic IO functions

Instead of using arch-specific accessors remap rotary register physical
address into kernel space in probe and use standard readw and writew to
access rotary MMRs.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --cc arch/blackfin/mach-bf527/boards/ad7160eval.c
Simple merge

diff --cc arch/blackfin/mach-bf527/boards/ezkit.c
Simple merge

diff --cc arch/blackfin/mach-bf548/boards/ezkit.c
Simple merge

diff --cc arch/blackfin/mach-bf609/boards/ezkit.c
Simple merge

diff --cc drivers/input/misc/bfin_rotary.c
Simple merge