iio: adc: ad7192: Correct reference voltage

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The avdd and the reference voltage are two different sources but the
reference voltage was assigned according to the avdd supply.

Add vref regulator structure and set the reference voltage according to
the vref supply from the devicetree.

In case vref supply is missing, reference voltage is set according to
the avdd supply for compatibility with old devicetrees.

Fixes: b581f748cc ("staging: iio: adc: ad7192: move out of staging")
Signed-off-by: Alisa-Dariana Roman <alisa.roman@analog.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230924152149.41884-1-alisadariana@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Alisa-Dariana Roman 2023-09-24 18:21:48 +03:00 • committed by Jonathan Cameron

parent 7e87ab38ee

commit 7e7dcab620

1 changed files with 25 additions and 4 deletions

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drivers/iio/adc/ad7192.c

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