diff options
| author | Uwe Kleine-König <u.kleine-koenig@baylibre.com> | 2025-02-27 12:35:27 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-03-05 12:38:46 +0000 |
| commit | 7021d97fb89b216557561ca8cdf68144c016993b (patch) | |
| tree | 02cbd9cfdda95b55afcf1d4c2c1c7ce4e418adeb | |
| parent | aac287ec80d71a7ab7e44c936a434625417c3e30 (diff) | |
iio: adc: ad7173: Grab direct mode for calibration
While a calibration is running, better don't make the device do anything
else.
To enforce that, grab direct mode during calibration.
Fixes: 031bdc8aee01 ("iio: adc: ad7173: add calibration support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/8319fa2dc881c9899d60db4eba7fe8e984716617.1740655250.git.u.kleine-koenig@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad7173.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c index ca2b41b16cc9..9ac8ea3cb499 100644 --- a/drivers/iio/adc/ad7173.c +++ b/drivers/iio/adc/ad7173.c @@ -345,6 +345,9 @@ static ssize_t ad7173_write_syscalib(struct iio_dev *indio_dev, if (ret) return ret; + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; + mode = st->channels[chan->channel].syscalib_mode; if (sys_calib) { if (mode == AD7173_SYSCALIB_ZERO_SCALE) @@ -355,6 +358,8 @@ static ssize_t ad7173_write_syscalib(struct iio_dev *indio_dev, chan->address); } + iio_device_release_direct(indio_dev); + return ret ? : len; } |