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staging:iio:ad7793: Use usleep_range instead of msleep

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It is recommended to use usleep_range instead of msleep for durations smaller
than a 20ms.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2012-11-21 16:27:00 +00:00 committed by Jonathan Cameron
parent e4ac728363
commit 3e4334f2d6
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/iio/adc/ad7793.c
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@ -122,7 +122,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
if (ret < 0)
goto out;
msleep(1); /* Wait for at least 500us */
usleep_range(500, 2000); /* Wait for at least 500us */
/* write/read test for device presence */
ret = ad_sd_read_reg(&st->sd, AD7793_REG_ID, 1, &id);