iio: light: vl6180: Cleanup als_gain lookup, avoid register readback

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Instead of manually iterating the array of allowed gain values, use
find_closest. Storing the current gain setting avoids accessing the
hardware on each query.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Stefan Brüns 2017-09-24 23:59:19 +02:00 • committed by Jonathan Cameron

parent df698c0402

commit e794bf6751

1 changed files with 44 additions and 41 deletions

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drivers/iio/light/vl6180.c

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