diff mbox series

[v2,5/6] iio:bmi160: use iio_pollfunc_store_time

Message ID 20190122020431.5338-5-martin@martingkelly.com (mailing list archive)
State New, archived
Headers show
Series [v2,1/6] iio:bmi160: add SPDX identifiers | expand

Commit Message

Martin Kelly Jan. 22, 2019, 2:04 a.m. UTC 
From: Martin Kelly <martin@martingkelly.com>

Currently, we snap the timestamp after reading from the buffer and
processing the event. When the IIO poll function is triggered by an
interrupt,  we can get a slightly more accurate timestamp by snapping it
prior to reading the data, since the data was already generated prior to
entering the trigger handler. This is not going to make a huge difference,
but we might as well improve slightly.

Do this by using iio_pollfunc_store_time as other drivers do.

Signed-off-by: Martin Kelly <martin@martingkelly.com>
---
v2:
- Use iio_pollfunc_store_time.

 drivers/iio/imu/bmi160/bmi160_core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--
2.11.0
diff mbox series

Patch

diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index c848fc1bce61..dca53be066e1 100644
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -425,8 +425,7 @@  static irqreturn_t bmi160_trigger_handler(int irq, void *p)
 		buf[j++] = sample;
 	}

-	iio_push_to_buffers_with_timestamp(indio_dev, buf,
-					   iio_get_time_ns(indio_dev));
+	iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp);
 done:
 	iio_trigger_notify_done(indio_dev->trig);
 	return IRQ_HANDLED;
@@ -854,7 +853,8 @@  int bmi160_core_probe(struct device *dev, struct regmap *regmap,
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &bmi160_info;

-	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev,
+					      iio_pollfunc_store_time,
 					      bmi160_trigger_handler, NULL);
 	if (ret < 0)
 		return ret;