linux.git/drivers/staging/iio/resolver, branch v4.19

staging: iio: ad2s1200: Move driver out of staging

2018-05-20T11:17:48+00:00

Move the iio driver for the ad2s1200 and ad2s1205 resolver-to-digital
converter out of staging, into mainline iio subsystems.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Add copyright

2018-05-20T11:10:58+00:00

Add David Veenstra as a copyright holders and as an author,
for all of the staging clean ups of the ad2s1200 driver.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Add scaling factor for angle channel

2018-05-20T11:09:47+00:00

A scaling factor of approximately 2 * Pi / (2^12 -1) is added,
to scale the 12-bits angular position to radians.

A return type of IIO_VAL_INT_PLUS_NANO is used, so that the scale of
both the angle channel and angular velocity channel has 7 significant
digits.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Add scaling factor for angular velocity channel

2018-05-20T11:07:29+00:00

The sysfs iio ABI states radians per second is expected as the unit for
angular velocity, but the 12-bit angular velocity register has
revolution per seconds as its unit. So a scaling factor of approximately
2 * Pi is added to the angular velocity channel.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Add dt table

2018-05-20T11:02:17+00:00

Add device tree table for matching with the vendor ID.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Replace platform data with dt bindings

2018-05-20T11:00:17+00:00

Remove usage of platform data, and replace it with device tree
facilities.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Replace legacy gpio API with modern API

2018-05-20T10:57:27+00:00

The legacy, integer based gpio API is replaced with the modern
descriptor based API.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Setup spi before iio device register

2018-05-20T10:54:43+00:00

The spi should be set up before the device is registered as an iio
device.

This patch moves the setup to before the device registration.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Add kernel docs to driver state

2018-05-20T10:53:45+00:00

Add missing kernel docs to the ad2s1200 driver state.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron

staging: iio: ad2s1200: Remove unneeded initializations

2018-05-20T10:52:49+00:00

Remove 2 initializations which are unneeded, because the
initialized values are never used.

Signed-off-by: David Veenstra 
Signed-off-by: Jonathan Cameron