H Hartley Sweeten 5c19084bbd
staging: comedi: 8255: handle memory mapped io ...
The drivers that use this module with memory mapped io all have the
ioremap'ed base address stored in the comedi_device 'mmio' member.
Introduce a default (*io) function that does 8-bit memory mapped io.
Modify subdev_8255_init() so that it takes a flag parameter indicating
if the io is port or memory mapped. Make the function static and rename
it to __subdev_8255_init().
Introduce two exported wrappers for __subdev_8255_init():
subdev_8255_init() - for drivers that do 8-bit port io
subdev_8255_mm_init() - for drivers that do 8-bit memory mapped io
Use subdev_8255_mm_init() in the drivers that do 8-bit memory mapped io
and remove the private (*io) functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com >
Reviewed-by: Ian Abbott <abbotti@mev.co.uk >
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
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5c19084bbd