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| author | Aniroop Mathur <a.mathur@samsung.com> | 2016-11-26 09:17:26 +0530 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-12-03 08:58:40 +0000 |
| commit | 071cf2494361fd856f1a6781f9c554da67e35e3c (patch) | |
| tree | 173b553342e17952c5c58dbefe779537608ef07f /drivers/staging/iio/meter/ade7759.c | |
| parent | 160d95870c8a44480fad49dc09fa4f0cc04e7098 (diff) | |
| download | op-kernel-dev-071cf2494361fd856f1a6781f9c554da67e35e3c.zip op-kernel-dev-071cf2494361fd856f1a6781f9c554da67e35e3c.tar.gz | |
IIO: Change msleep to usleep_range for small msecs
msleep(1~20) may not do what the caller intends, and will often sleep longer.
(~20 ms actual sleep for any value given in the 1~20ms range)
This is not the desired behaviour for many cases like device resume time,
device suspend time, device enable time, data reading time, etc.
Thus, change msleep to usleep_range for precise wakeups.
Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio/meter/ade7759.c')
| -rw-r--r-- | drivers/staging/iio/meter/ade7759.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index 80144d4..944ee34 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -338,7 +338,7 @@ static int ade7759_initial_setup(struct iio_dev *indio_dev) } ade7759_reset(dev); - msleep(ADE7759_STARTUP_DELAY); + usleep_range(ADE7759_STARTUP_DELAY, ADE7759_STARTUP_DELAY + 100); err_ret: return ret; |
