iio: adc: ad4695: add 2nd regmap for 16-bit registers

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The AD4695 and similar chips have some multibyte registers that have
to be read/written in a single operation. So we need to add a 2nd regmap
for these registers.

These registers are removed from the 8-bit regmap allowable ranges and
AD4695_MAX_REG is dropped since it would be ambiguous now.

debugfs register access is also updated to automatically use the correct
regmap depending on the register address.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-1-c8f6e3b47551@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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David Lechner 2024-08-20 10:58:35 -05:00 • committed by Jonathan Cameron

parent 16531118ba

commit 2ba49fc41b

1 changed files with 68 additions and 15 deletions

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drivers/iio/adc/ad4695.c

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