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iio:adc:ad7476: Use GENMASK() macro

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Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Peter Meerwald 2014-12-06 06:00:00 +00:00 committed by Jonathan Cameron
parent 09a1737e55
commit bc74fb8191
1 changed files with 2 additions and 3 deletions
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5
drivers/iio/adc/ad7476.c
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@ -14,6 +14,7 @@
#include <linux/regulator/consumer.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@ -21,8 +22,6 @@
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
#define RES_MASK(bits) ((1 << (bits)) - 1)
struct ad7476_state;
struct ad7476_chip_info {
@ -117,7 +116,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
RES_MASK(st->chip_info->channel[0].scan_type.realbits);
GENMASK(st->chip_info->channel[0].scan_type.realbits - 1, 0);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
if (!st->chip_info->int_vref_uv) {