Commit Graph

8 Commits

Author SHA1 Message Date
Mikko Koivunen c91a88ef84 iio: light: rpr0521 sample_frequency read/write
Add sysfs read/write sample frequency.

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>
2017-05-21 15:06:14 +01:00
Mikko Koivunen 624c389e10 iio: light: rpr0521 whitespace fixes
Just whitespace change, no functional changes.

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>
2017-05-21 15:06:13 +01:00
Mikko Koivunen ae5916501b iio: light: rpr0521 magic number to sizeof() on value read
Changed magic number to sizeof() on value read.

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>
2017-05-21 15:06:12 +01:00
Mikko Koivunen 484c314b90 iio: light: rpr0521 on-off sequence change for CONFIG_PM
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>
2017-05-21 15:06:12 +01:00
Mikko Koivunen 12d7494913 iio: light: rpr0521 poweroff for probe fails
Set sensor measurement off after probe fail in pm_runtime_set_active() or
iio_device_register(). Without this change sensor measurement stays on
even though probe fails on these calls.

This is maybe rare case, but causes constant power drain without any
benefits when it happens. Power drain is 20-500uA, typically 180uA.

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>
2017-05-21 15:06:11 +01:00
Mikko Koivunen f87fa26177 iio: light: rpr0521 disable sensor -bugfix
Sensor was marked enabled on each call even if the call was for disabling
sensor.

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>
2017-05-21 15:06:10 +01:00
Adriana Reus 7d0ead5c3f iio: Reconcile operation order between iio_register/unregister and pm functions
At probe, runtime pm should be setup before registering the sysfs interface so
that all the power attributes are accurate and functional when registering.
Also, when removing the device we should unregister first to make sure
that the interfaces that may result in wakeups are no longer available.

Fix this behaviour for the following drivers: bmc150, bmg160, kmx61,
kxcj-1013, mma9551, mma9553, rpr0521.

Signed-off-by: Adriana Reus <adriana.reus@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-08 15:36:53 +00:00
Daniel Baluta efa86e9fa8 iio: light: Add support for ROHM RPR0521 sensor
This patch adds support for ROHM RPR0521 ambient light and proximity
sensor. It offers raw readings for intensity and proximity.

Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-21 15:14:54 +01:00