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staging: comedi: hwdrv_apci1564: tidy up apci1564_counter_insn_write()

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Clear the gate and trig bits in the common code path.

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 2015-08-07 11:45:13 -07:00 committed by Greg Kroah-Hartman
parent 1f5d767fab
commit c6288a3beb
1 changed files with 1 additions and 2 deletions
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3
drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
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@ -147,16 +147,15 @@ static int apci1564_counter_insn_write(struct comedi_device *dev,
unsigned int ctrl;
ctrl = inl(iobase + ADDI_TCW_CTRL_REG);
ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
switch (data[1]) {
case 0: /* Stops the Counter subdevice */
ctrl = 0;
break;
case 1: /* Start the Counter subdevice */
ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
ctrl |= ADDI_TCW_CTRL_ENA;
break;
case 2: /* Clears the Counter subdevice */
ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
ctrl |= ADDI_TCW_CTRL_GATE;
break;
}