The 8255 driver (*io) callback now includes the comedi_device pointer.
Using this we can get the ioremap'ed base address.
Instead of passing the (cast) mmio address to subdev_8255_init(), pass
the 'iobase' of the 8255 registers (DIO_8255_OFFSET).
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Reviewed-by: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/cb_pcidas64.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c
b/drivers/staging/comedi/drivers/cb_pcidas64.c
index fafde70..61cb560 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -3370,15 +3370,13 @@ static int ao_cancel(struct comedi_device *dev, struct
comedi_subdevice *s)
}
static int dio_callback(struct comedi_device *dev,
- int dir, int port, int data, unsigned long arg)
+ int dir, int port, int data, unsigned long iobase)
{
- void __iomem *iobase = (void __iomem *)arg;
-
if (dir) {
- writeb(data, iobase + port);
+ writeb(data, dev->mmio + iobase + port);
return 0;
}
- return readb(iobase + port);
+ return readb(dev->mmio + iobase + port);
}
static int dio_callback_4020(struct comedi_device *dev,
@@ -3846,9 +3844,8 @@ static int setup_subdevices(struct comedi_device *dev)
ret = subdev_8255_init(dev, s, dio_callback_4020,
(unsigned long)dio_8255_iobase);
} else {
- dio_8255_iobase = dev->mmio + DIO_8255_OFFSET;
ret = subdev_8255_init(dev, s, dio_callback,
- (unsigned long)dio_8255_iobase);
+ DIO_8255_OFFSET);
}
if (ret)
return ret;
--
2.0.3
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