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| author | Martin Kelly <martin@martingkelly.com> | 2019-02-02 22:56:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-02-09 16:24:27 +0100 |
| commit | 0a3f50e4d698e3d46ce10171dcd076c927bb60a8 (patch) | |
| tree | 2070a154e04ab6377050df1b6e172522589c0588 /drivers/iio | |
| parent | dt-bindings: bmi160 document open-drain property (diff) | |
| download | linux-0a3f50e4d698e3d46ce10171dcd076c927bb60a8.tar.xz linux-0a3f50e4d698e3d46ce10171dcd076c927bb60a8.zip | |
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: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/imu/bmi160/bmi160_core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c index 007f7c532ac4..f3c5b86a281e 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; @@ -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; |