iio: adc: Support ROHM BD79112 ADC/GPIO

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The ROHM BD79112 is an ADC/GPIO with 32 channels. The channel inputs can
be used as ADC or GPIO. Using the GPIOs as IRQ sources isn't supported.

The ADC is 12-bit, supporting input voltages up to 5.7V, and separate I/O
voltage supply. Maximum SPI clock rate is 20 MHz (10 MHz with
daisy-chain configuration) and maximum sampling rate is 1MSPS.

The IC does also support CRC but it is not implemented in the driver.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Matti Vaittinen 2025-09-15 10:12:43 +03:00 • committed by Jonathan Cameron

parent d021fb3ae8

commit edf2fc7b5b

3 changed files with 567 additions and 0 deletions

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10

drivers/iio/adc/Kconfig

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1

drivers/iio/adc/Makefile

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556

drivers/iio/adc/rohm-bd79112.c

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