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staging: comedi: add an 'mmio' member to comedi_device

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All the comedi drivers that use memory mapped io currently have a
void __iomem * member in their private data for the driver. For
some of the drivers this is actually the only member in that data.

For convienence, add a new member to the comedi_device for this
void __iomem *.

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>
This commit is contained in:
H Hartley Sweeten 2014-07-29 15:01:20 -07:00 committed by Greg Kroah-Hartman
parent ab35426810
commit d7e6dc1338
2 changed files with 2 additions and 0 deletions
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1
drivers/staging/comedi/comedidev.h
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@ -253,6 +253,7 @@ struct comedi_device {
struct comedi_subdevice *subdevices;
/* dumb */
void __iomem *mmio;
unsigned long iobase;
unsigned long iolen;
unsigned int irq;

1
drivers/staging/comedi/drivers.c
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@ -121,6 +121,7 @@ static void comedi_device_detach_cleanup(struct comedi_device *dev)
dev->driver = NULL;
dev->board_name = NULL;
dev->board_ptr = NULL;
dev->mmio = NULL;
dev->iobase = 0;
dev->iolen = 0;
dev->ioenabled = false;