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iio: adc: ad7192: Grab direct mode for calibration

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While a calibration is running, better don't make the device do anything
else.

To enforce that, grab direct mode during calibration.

Fixes: 42776c14c6 ("staging: iio: adc: ad7192: Add system calibration support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/8aade802afca6a89641e24c1ae1d4b8d82cff58d.1740655250.git.u.kleine-koenig@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Uwe Kleine-König
2025-02-27 12:35:28 +01:00
committed by Jonathan Cameron
parent 7021d97fb8
commit 08808b3ef3
1 changed files with 5 additions and 0 deletions
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5
drivers/iio/adc/ad7192.c
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@@ -257,6 +257,9 @@ static ssize_t ad7192_write_syscalib(struct iio_dev *indio_dev,
if (ret)
return ret;
if (!iio_device_claim_direct(indio_dev))
return -EBUSY;
temp = st->syscalib_mode[chan->channel];
if (sys_calib) {
if (temp == AD7192_SYSCALIB_ZERO_SCALE)
@@ -267,6 +270,8 @@ static ssize_t ad7192_write_syscalib(struct iio_dev *indio_dev,
chan->address);
}
iio_device_release_direct(indio_dev);
return ret ? ret : len;
}