Commit 0a3f50e4 authored by Martin Kelly's avatar Martin Kelly Committed by Jonathan Cameron
Browse files

iio:bmi160: use iio_pollfunc_store_time 



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: default avatarMartin Kelly <martin@martingkelly.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent b7905e4c

drivers/iio/imu/bmi160/bmi160_core.c

+3 −3
Original line number Diff line number Diff line
@@ -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;
@@ -834,7 +833,8 @@ 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;

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