staging: comedi: ni_at_ao: remove 'cfg2' from private data

This member of the private data is initialized to '0' during the
board reset then never changed. Just remove it.

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>

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 62d4d858e041c17b5c0e3c98c62e480d59ac175d..bba5bc0c036bfac504951f87b83c584c0e9a67ee 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -142,9 +142,7 @@ struct atao_board {
 };
 
 struct atao_private {
-
        unsigned short cfg1;
-       unsigned short cfg2;
        unsigned short cfg3;
 
        /* Used for AO readback */
@@ -164,8 +162,7 @@ static void atao_reset(struct comedi_device *dev)
        outb(0x03, dev->iobase + ATAO_82C53_CNTR1);
        outb(CNTRSEL0 | RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
 
-       devpriv->cfg2 = 0;
-       outw(devpriv->cfg2, dev->iobase + ATAO_CFG2);
+       outw(0, dev->iobase + ATAO_CFG2);
 
        devpriv->cfg3 = 0;
        outw(devpriv->cfg3, dev->iobase + ATAO_CFG3);
@@ -294,15 +291,15 @@ static int atao_calib_insn_write(struct comedi_device *dev,
        bitstring = ((chan & 0x7) << 8) | (data[insn->n - 1] & 0xff);
 
        for (bit = 1 << (11 - 1); bit; bit >>= 1) {
-               outw(devpriv->cfg2 | ((bit & bitstring) ? SDATA : 0),
+               outw(((bit & bitstring) ? SDATA : 0),
                     dev->iobase + ATAO_CFG2);
-               outw(devpriv->cfg2 | SCLK | ((bit & bitstring) ? SDATA : 0),
+               outw(SCLK | ((bit & bitstring) ? SDATA : 0),
                     dev->iobase + ATAO_CFG2);
        }
        /* strobe the appropriate caldac */
-       outw(devpriv->cfg2 | (((chan >> 3) + 1) << 14),
+       outw((((chan >> 3) + 1) << 14),
             dev->iobase + ATAO_CFG2);
-       outw(devpriv->cfg2, dev->iobase + ATAO_CFG2);
+       outw(0, dev->iobase + ATAO_CFG2);
 
        return insn->n;
 }