The 'iobase' is only used to pass the iobase address of the analog output
registers to ao_winsn(). This address is simply dev->iobase + 8.
Use that instead and remove the 'iobase' from the subdevice private data.
This removes a couple more uses of the ugly 'subpriv' macro.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/pcmmio.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index f889e0f..5726ded 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -191,9 +191,6 @@ struct pcmmio_subdev_private {
/* for DIO: mapping of halfwords (bytes)
in port/chanarray to iobase */
unsigned long iobases[PORTS_PER_SUBDEV];
-
- /* for AI/AO */
- unsigned long iobase;
};
union {
struct {
@@ -887,8 +884,9 @@ static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
struct pcmmio_private *devpriv = dev->private;
+ unsigned long iobase = dev->iobase + 8;
+ unsigned int iooffset = 0;
int n;
- unsigned iobase = subpriv->iobase, iooffset = 0;
for (n = 0; n < insn->n; n++) {
unsigned chan = CR_CHAN(insn->chanspec), range =
@@ -991,7 +989,6 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
/* Next, AO */
s = &dev->subdevices[1];
- s->private = &devpriv->sprivs[1];
s->maxdata = 0xffff;
s->range_table = &pcmmio_ao_ranges;
s->subdev_flags = SDF_READABLE;
@@ -1000,10 +997,10 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->len_chanlist = s->n_chan;
s->insn_read = ao_rinsn;
s->insn_write = ao_winsn;
- subpriv->iobase = dev->iobase + 8;
+
/* initialize the resource enable register by clearing it */
- outb(0, subpriv->iobase + 3);
- outb(0, subpriv->iobase + 4 + 3);
+ outb(0, dev->iobase + 8 + 3);
+ outb(0, dev->iobase + 8 + 4 + 3);
port = 0;
asic = 0;
--
1.8.4.4
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