From: Nuno Sa <nuno.sa@xxxxxxxxxx> Call iio_backend_debugfs_add() to add (if available) the backend debug interface. Signed-off-by: Nuno Sa <nuno.sa@xxxxxxxxxx> --- drivers/iio/dac/ad9739a.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad9739a.c b/drivers/iio/dac/ad9739a.c index 799387f21b9f..615d1a196db3 100644 --- a/drivers/iio/dac/ad9739a.c +++ b/drivers/iio/dac/ad9739a.c @@ -431,7 +431,13 @@ static int ad9739a_probe(struct spi_device *spi) indio_dev->num_channels = ARRAY_SIZE(ad9739a_channels); indio_dev->setup_ops = &ad9739a_buffer_setup_ops; - return devm_iio_device_register(&spi->dev, indio_dev); + ret = devm_iio_device_register(&spi->dev, indio_dev); + if (ret) + return ret; + + iio_backend_debugfs_add(st->back, indio_dev); + + return 0; } static const struct of_device_id ad9739a_of_match[] = { -- 2.45.2