As per Documentation/timers/timers-howto.txt Msleep < 20ms can sleep for up to 20ms. so use usleep_range.
Signed-off-by: Mohan Kumar <[email protected]> --- drivers/iio/proximity/mb1232.c | 2 +- drivers/iio/proximity/srf08.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iio/proximity/mb1232.c b/drivers/iio/proximity/mb1232.c index 166b3e6..74f7eae 100644 --- a/drivers/iio/proximity/mb1232.c +++ b/drivers/iio/proximity/mb1232.c @@ -81,7 +81,7 @@ static s16 mb1232_read_distance(struct mb1232_data *data) } } else { /* use simple sleep if announce irq is not connected */ - msleep(15); + usleep_range(15000, 20000); } ret = i2c_master_recv(client, (char *)&buf, sizeof(buf)); diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c index f2bf783..605a582 100644 --- a/drivers/iio/proximity/srf08.c +++ b/drivers/iio/proximity/srf08.c @@ -150,7 +150,7 @@ static int srf08_read_ranging(struct srf08_data *data) * polling for not more than 20 ms should be enough */ waittime = 1 + data->range_mm / 172; - msleep(waittime); + usleep_range(waittime * 1000, (waittime * 1000) + 2000); for (i = 0; i < 4; i++) { ret = i2c_smbus_read_byte_data(data->client, SRF08_READ_SW_REVISION); @@ -158,7 +158,7 @@ static int srf08_read_ranging(struct srf08_data *data) /* check if a valid version number is read */ if (ret < 255 && ret > 0) break; - msleep(5); + usleep_range(5000, 15000); } if (ret >= 255 || ret <= 0) { -- 2.7.4
