From: Jonathan Cameron Jonathan.Cameron@huawei.com
commit a1caeebab07e9d72eec534489f47964782b93ba9 upstream.
Add space for the timestamp to be inserted. Also ensure correct alignment for passing to iio_push_to_buffers_with_timestamp()
Fixes: a5f8c7da3dbe ("iio: adc: Add AD7768-1 ADC basic support") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Link: https://lore.kernel.org/r/20210501165314.511954-2-jic23@kernel.org Cc: Stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/adc/ad7768-1.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/iio/adc/ad7768-1.c +++ b/drivers/iio/adc/ad7768-1.c @@ -167,6 +167,10 @@ struct ad7768_state { * transfer buffers to live in their own cache lines. */ union { + struct { + __be32 chan; + s64 timestamp; + } scan; __be32 d32; u8 d8[2]; } data ____cacheline_aligned; @@ -469,11 +473,11 @@ static irqreturn_t ad7768_trigger_handle
mutex_lock(&st->lock);
- ret = spi_read(st->spi, &st->data.d32, 3); + ret = spi_read(st->spi, &st->data.scan.chan, 3); if (ret < 0) goto err_unlock;
- iio_push_to_buffers_with_timestamp(indio_dev, &st->data.d32, + iio_push_to_buffers_with_timestamp(indio_dev, &st->data.scan, iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);