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 (i * 4).
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/8255_pci.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/comedi/drivers/8255_pci.c
b/drivers/staging/comedi/drivers/8255_pci.c
index cee3d18..1a3deec 100644
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -193,13 +193,11 @@ static int pci_8255_mite_init(struct pci_dev *pcidev)
static int pci_8255_mmio(struct comedi_device *dev,
int dir, int port, int data, unsigned long iobase)
{
- void __iomem *mmio_base = (void __iomem *)iobase;
-
if (dir) {
- writeb(data, mmio_base + port);
+ writeb(data, dev->mmio + iobase + port);
return 0;
}
- return readb(mmio_base + port);
+ return readb(dev->mmio + iobase + port);
}
static int pci_8255_auto_attach(struct comedi_device *dev,
@@ -253,8 +251,7 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
s = &dev->subdevices[i];
if (is_mmio) {
- iobase = (unsigned long)(dev->mmio + (i * 4));
- ret = subdev_8255_init(dev, s, pci_8255_mmio, iobase);
+ ret = subdev_8255_init(dev, s, pci_8255_mmio, i * 4);
} else {
iobase = dev->iobase + (i * 4);
ret = subdev_8255_init(dev, s, NULL, iobase);
--
2.0.3
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