linux-stable.git/drivers/iio/light, branch linux-3.16.y

iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers

2019-02-11T17:54:05+00:00

commit 0145b50566e7de5637e80ecba96c7f0e6fff1aad upstream.

Before this commit sensor_hub_input_attr_get_raw_value() failed to take
the signedness of 16 and 8 bit values into account, returning e.g.
65436 instead of -100 for the z-axis reading of an accelerometer.

This commit adds a new is_signed parameter to the function and makes all
callers pass the appropriate value for this.

While at it, this commit also fixes up some neighboring lines where
statements were needlessly split over 2 lines to improve readability.

Signed-off-by: Hans de Goede 
Acked-by: Srinivas Pandruvada 
Acked-by: Benjamin Tissoires 
Signed-off-by: Jonathan Cameron 
[bwh: Backported to 3.16:
 - sensor_hub_input_attr_get_raw_value() doesn't take a sync/async flag
   parameter
 - In sensor_hub_input_attr_get_raw_value() keep using data->pending instead of
   hsdev->pending
 - In magn_3d_read_raw() keep using chan->scan_index intstead of chan->address
 - Drop changes in hid-sensor-{custom,humidity,temperature}
 - Adjust context]
Signed-off-by: Ben Hutchings

iio: light: tsl2563: use correct event code

2017-11-11T13:32:52+00:00

commit a3507e48d3f99a93a3056a34a5365f310434570f upstream.

The TSL2563 driver provides three iio channels, two of which are raw ADC
channels (channel 0 and channel 1) in the device and the remaining one
is calculated by the two.  The ADC channel 0 only supports programmable
interrupt with threshold settings and this driver supports the event but
the generated event code does not contain the corresponding iio channel
type.

This is going to change userspace ABI.  Hopefully fixing this to be
what it should always have been won't break any userspace code.

Cc: Jonathan Cameron 
Signed-off-by: Akinobu Mita 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Ben Hutchings

iio: light: hid-sensor-prox: Fix modifier

2015-05-28T08:59:56+00:00

commit c2aab3d58b96002555a3e70004f593b043830248 upstream.

Currently in_proximity_(null)_raw is getting presented as raw sysfs
attribute. Same with the scan_elements.
The modifier doesn't apply to this channel.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Luis Henriques

iio:tcs3472: Check for buffer enabled and locking

2014-07-07T07:59:16+00:00

Signed-off-by: Peter Meerwald 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-prox: Fix return values

2014-07-05T10:09:46+00:00

IIO_CHAN_INFO_SAMP_FREQ and IIO_CHAN_INFO_HYSTERESIS cases ignored
the actual return values (which could be -EINVAL) and instead
returned IIO_VAL_INT_PLUS_MICRO always. Return the actual value
obtained from the functions. Both functions return IIO_VAL_INT_PLUS_MICRO
upon success.

Signed-off-by: Sachin Kamat 
Cc: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-als: Fix return values

2014-07-05T10:07:38+00:00

IIO_CHAN_INFO_SAMP_FREQ and IIO_CHAN_INFO_HYSTERESIS cases ignored
the actual return values (which could be -EINVAL) and instead
returned IIO_VAL_INT_PLUS_MICRO always. Return the actual value
obtained from the functions. Both functions return IIO_VAL_INT_PLUS_MICRO
upon success.

Signed-off-by: Sachin Kamat 
Cc: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensors: Proximity: Raw read support

2014-05-05T09:59:51+00:00

Added support for raw reading of channel. If the sensor is powered
off, it will turn on for reading value.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensors: ALS: Raw read support

2014-05-05T09:59:51+00:00

Added support for raw reading of channel. If the sensor is powered
off, it will turn on for reading value.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensors: Add API to power on/off

2014-05-05T09:59:49+00:00

Added an API to allow client drivers to turn ON and OFF sensors for
quick read. Added data_read as counting varaible instead of boolean,
so that sensor is powered off only when last user released it.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensors: ALS: adjust scale and offset

2014-05-05T09:59:46+00:00

Using units and unit exponent to calculate scale which is compliant
to IIO ABI.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron