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staging: comedi: das16: clarify 8254 timer programming 

Refactor the 8254 timer programming to use the i8254_set_mode()
and i8254_write() helpers instead of i8254_load(). This allows
us to use the I8254_MODE* defines to clarify the code.

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 2014-04-29 12:59:59 -07:00 committed by Greg Kroah-Hartman
parent bef74ba884
commit 8383b8c4a9
1 changed files with 4 additions and 3 deletions
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7
drivers/staging/comedi/drivers/das16.c
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@ -740,9 +740,10 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
&devpriv->divisor1, &devpriv->divisor2,
&ns, rounding_flags);
/* Write the values of ctr1 and ctr2 into counters 1 and 2 */
i8254_load(timer_base, 0, 1, devpriv->divisor1, 2);
i8254_load(timer_base, 0, 2, devpriv->divisor2, 2);
i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
i8254_write(timer_base, 0, 1, devpriv->divisor1);
i8254_write(timer_base, 0, 2, devpriv->divisor2);
return ns;
}