linux.git/drivers/iio/orientation, branch v4.17.1

iio:orientation: drop assign iio_info.driver_module

2017-08-22T20:33:36+00:00

The equivalent of this is now done via macro magic when
the relevant register call is made.  The actual structure
elements will shortly go away.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Lars-Peter Clausen

iio: orientation: hid-sensor-rotation: Drop unnecessary static

2017-07-17T20:45:01+00:00

Drop static on a local variable, when the variable is initialized before
any possible use.  Thus, the static has no benefit.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@bad exists@
position p;
identifier x;
type T;
@@
static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@
-static
 T x@p;
 ... when != x
     when strict
?x = e;
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add "scale" and "offset" properties parse support

2017-05-07T11:22:36+00:00

Add orientation sensor "scale" and "offset" parse support.
These two properties are needed for exponent data conversion.

Signed-off-by: Song Hongyan 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Xu Even 
Acked-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add geomagnetic orientation sensor hid support.

2017-05-07T11:22:33+00:00

Geomagnetic orientation(AM) sensor is one kind of orientation 6dof sensor.
It gives the device rotation in respect to the earth center and the
magnetic north. The sensor is implemented through use of an accelerometer
and magnetometer do not use gyroscope. It is a standard HID sensor.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Geomagnetic orientation(AM) sensor and dev rotation sensor have same
channel and share channel usage id. So the most of the code for relative
orientation sensor can be reused.

Signed-off-by: Song Hongyan 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Add relative orientation sensor hid support

2017-05-07T11:22:27+00:00

Relative orientation(AG) sensor is a 6dof orientation sensor,
it depends on acceleration and gyroscope sensor data. It gives
a quaternion describing the orientation of the device relative
to an initial orientation. It is a standard HID sensor.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Relative orientation(AG) sensor and dev rotation sensor have same
channels and share channel usage id. So the most of the code for
relative orientation sensor can be reused.

Signed-off-by: Song Hongyan 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Xu Even 
Acked-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver)

2016-11-05T17:47:47+00:00

This fix makes newer ISH hubs work. Previous ones worked by lucky
coincidence.

Rotation sensor function does not work due to miss PM function.
Add common hid sensor iio pm function for rotation sensor.

Further clarification from Srinivas:

If CONFIG_PM is not defined, then this prevents this sensor to
function. So above commit caused this.

This sensor was supposed to be always on to trigger wake up in prior
external hubs. But with the new ISH hub this is not the case.

Signed-off-by: Song Hongyan 
Fixes: 2b89635e9a9e ("iio: hid_sensor_hub: Common PM functions")
Cc: 
Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-rotation: Fix memory leak in probe()

2015-05-17T08:10:25+00:00

'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam 
Reviewed-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: orientation: hid-sensor-incl-3d: Fix memory leak in probe()

2015-05-17T08:10:14+00:00

'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam 
Reviewed-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-rotation: Constify platform_device_id

2015-05-10T19:31:47+00:00

The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Jonathan Cameron

iio: hid-sensor-incl-3d: Constify platform_device_id

2015-05-10T19:31:47+00:00

The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Jonathan Cameron