It is recommended to use usleep_range instead of msleep for durations smaller than a 20ms. Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx> --- drivers/staging/iio/adc/ad7793.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c index 965e6ae..1c3d668 100644 --- a/drivers/staging/iio/adc/ad7793.c +++ b/drivers/staging/iio/adc/ad7793.c @@ -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); -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html