iio: adc: stm32-dfsdm: add id registers support

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Add support of identification registers to STM32 DFSDM
to allow hardware capabilities discovery and configuration check.
The number of filters and channels, are read from registers,
when they are available.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20230105125331.328275-1-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Olivier Moysan 2023-01-05 13:53:30 +01:00 • committed by Jonathan Cameron

parent 14e5b7ab19

commit bfcae956d9

2 changed files with 124 additions and 35 deletions

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99

drivers/iio/adc/stm32-dfsdm-core.c

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60

drivers/iio/adc/stm32-dfsdm.h

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