iio: light: rpr0521 on-off sequence change for CONFIG_PM

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Refactor _set_power_state(), _resume() and _suspend().
Enable measurement only when needed, not in _init(). System can suspend
during measurement and measurement is continued on resume.
Pm turns off measurement when both ps and als measurements are disabled for
2 seconds. During off-time the power save is 20-500mA, typically 180mA.

Signed-off-by: Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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Mikko Koivunen 2017-05-18 15:12:51 +03:00 • committed by Jonathan Cameron

parent 12d7494913

commit 484c314b90

1 changed files with 46 additions and 24 deletions

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drivers/iio/light/rpr0521.c

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