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iio: adc: ad7380: new driver for AD7380 ADCs

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This adds a new driver for the AD7380 family ADCs.

The driver currently implements basic support for the AD7380, AD7381,
2-channel differential ADCs. Support for additional single-ended,
pseudo-differential and 4-channel chips that use the same register map
as well as additional features of the chip will be added in future patches.

[Julien Stephan: fix rx/tx buffer for regmap access]
[Julien Stephan: fix scale issue]
[Julien Stephan: use the new iio_device_claim_direct_scoped
instead of iio_device_claim_direct_mode]

Co-developed-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
[Julien Stephan: add datasheet links of supported parts]
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://lore.kernel.org/r/20240528-adding-new-ad738x-driver-v7-2-4cd70a4c12c8@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner 2024-05-28 16:20:29 +02:00 • committed by Jonathan Cameron
commit b095217c10
4 changed files with 456 additions and 0 deletions
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