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iio: adc: ad7606: fix/persist oversampling_ratio setting

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When the mutexes were reworked to guards, the caching of the
oversampling_ratio values was removed by accident.

The main effect of this change is that, after setting the
oversampling_ratio value, reading it back would result in the initial value
(of 1).
The value would get sent to the device correctly though.

Fixes 2956979dbd0d: ("iio: adc: ad7606: switch mutexes to guard")

Signed-off-by: Alexandru Ardelean <aardelean@baylibre.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20241025095939.271811-2-aardelean@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alexandru Ardelean 2024-10-25 12:59:35 +03:00 committed by Jonathan Cameron
parent bb372ac253
commit 8456a9f072
1 changed files with 1 additions and 0 deletions
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drivers/iio/adc/ad7606.c
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@ -753,6 +753,7 @@ static int ad7606_write_raw(struct iio_dev *indio_dev,
ret = st->write_os(indio_dev, i);
if (ret < 0)
return ret;
st->oversampling = st->oversampling_avail[i];
return 0;
case IIO_CHAN_INFO_SAMP_FREQ: