[PATCH v3 0/2] iio: vncl4000: Enable runtime pm for vcnl4200/4040

[Guido GÃnther]

This is modelled after the vcnl4035 driver. For the vcnl40{0,1,2}0
we don't do anything since they use on demand measurement.

Changes from v2
---------------
- Based on review feedback from Jonathan Cameron
  https://lore.kernel.org/linux-iio/cover.1580391472.git.agx@xxxxxxxxxxx/T/#m80668f77cb45cea3973b3609ebdce5bba351ed50
  - Fix missing return statement
  - Only update timestamp on power on
  - simplify returns from vcnl4200_runtime_suspend
- simplify return from vcnl4000_init

Changes from v1
---------------
- Based on review feedback from Tomas Novotny
  https://lore.kernel.org/linux-iio/20200120182853.37a724fa@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
  Drop long wait in vcnl4000_runtime_resume but rather
  use vcnl4200_{al,ps}.last_measurement to make sure
  we wait long enough.

Guido GÃnther (2):
  iio: vcnl4000: Use a single return when getting IIO_CHAN_INFO_RAW
  iio: vncl4000: Enable runtime pm for vcnl4200/4040

 drivers/iio/light/vcnl4000.c | 144 ++++++++++++++++++++++++++++++-----
 1 file changed, 125 insertions(+), 19 deletions(-)

-- 
2.23.0