iio: amplifiers: ad8366: rework driver to allow other chips

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The SPI gain amplifiers are simple devices, with 1 or 2 channels, to which
are read-from/written-to.

The gain computation in ad8366_write_raw() has been updated to compute gain
in dB for negative values.

This driver will be extended to support other chips as well.
To do that, this rework handles the AD8366 device as a special-case (via
switch-statements). This will make things easier when adding new chips.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Alexandru Ardelean 2019-05-30 16:18:10 +03:00 • committed by Jonathan Cameron

parent dbcf6b5d26

commit 11ab555a6d

1 changed files with 62 additions and 19 deletions

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drivers/iio/amplifiers/ad8366.c

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