iio: adc: ad4695: Add support for SPI offload

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Add support for SPI offload to the ad4695 driver. SPI offload allows
sampling data at the max sample rate (500kSPS or 1MSPS).

This is developed and tested against the ADI example FPGA design for
this family of ADCs [1].

[1]: http://analogdevicesinc.github.io/hdl/projects/ad469x_fmc/index.html

Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-14-e48a489be48c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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David Lechner 2025-02-07 14:09:11 -06:00 • committed by Jonathan Cameron

parent b7c1e069f5

commit f09f140e3e

2 changed files with 431 additions and 17 deletions

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drivers/iio/adc/Kconfig

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446

drivers/iio/adc/ad4695.c

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