linux-stable.git/drivers/iio, branch v3.10.87

iio: DAC: ad5624r_spi: fix bit shift of output data value

2015-08-03T16:29:43+00:00

commit adfa969850ae93beca57f7527f0e4dc10cbe1309 upstream.

The value sent on the SPI bus is shifted by an erroneous number of bits.
The shift value was already computed in the iio_chan_spec structure and
hence subtracting this argument to 16 yields an erroneous data position
in the SPI stream.

Signed-off-by: JM Friedt 
Acked-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adis16400: Compute the scan mask from channel indices

2015-06-22T23:55:52+00:00

commit c2a8b623a089d52c199e305e7905829907db8ec8 upstream.

We unfortunately can't use ~0UL for the scan mask to indicate that the
only valid scan mask is all channels selected. The IIO core needs the exact
mask to work correctly and not a super-set of it. So calculate the masked
based on the channels that are available for a particular device.

Signed-off-by: Paul Cercueil 
Signed-off-by: Lars-Peter Clausen 
Fixes: 5eda3550a3cc ("staging:iio:adis16400: Preallocate transfer message")
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adis16400: Use != channel indices for the two voltage channels

2015-06-22T23:55:51+00:00

commit 7323d59862802ca109451eeda9777024a7625509 upstream.

Previously, the two voltage channels had the same ID, which didn't cause
conflicts in sysfs only because one channel is named and the other isn't;
this is still violating the spec though, two indexed channels should never
have the same index.

Signed-off-by: Paul Cercueil 
Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adis16400: Report pressure channel scale

2015-06-22T23:55:51+00:00

commit 69ca2d771e4e709c5ae1125858e1246e77ef8b86 upstream.

Add the scale for the pressure channel, which is currently missing.

Signed-off-by: Lars-Peter Clausen 
Fixes: 76ada52f7f5d ("iio:adis16400: Add support for the adis16448")
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: imu: Use iio_trigger_get for indio_dev->trig assignment

2015-04-19T08:10:49+00:00

commit 4ce7ca89d6e8eae9e201cd0e972ba323f33e2fb4 upstream.

This patch uses iio_trigger_get to increment the reference
count of trigger device, to avoid incorrect assignment.
Can result in a null pointer dereference during removal if the
trigger has been changed before removal.

This patch refers to a similar situation encountered through the
following discussion:
http://www.spinics.net/lists/linux-iio/msg13669.html

Signed-off-by: Darshana Padmadas 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo

2015-04-19T08:10:49+00:00

commit 4dac0a8eefd55bb1f157d1a5a084531334a2d74c upstream.

A hardware fifo reset always imply an invalidation of the
existing timestamps, so we'll clear timestamps fifo on
successfull hardware fifo reset.

Signed-off-by: Viorel Suman 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: imu: adis16400: Fix sign extension

2015-03-18T12:22:29+00:00

commit 19e353f2b344ad86cea6ebbc0002e5f903480a90 upstream.

The intention is obviously to sign-extend a 12 bit quantity. But
because of C's promotion rules, the assignment is equivalent to "val16
&= 0xfff;". Use the proper API for this.

Signed-off-by: Rasmus Villemoes 
Acked-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name

2014-10-05T21:54:12+00:00

commit 872687f626e033b4ddfaec1e410057cfc6636d77 upstream.

Fixes: a2c12493ed7e ('iio: of_iio_channel_get_by_name() returns non-null pointers for error legs')

which improperly assumes that of_iio_channel_get_by_name must always
return NULL and thus now hides -EPROBE_DEFER.

Signed-off-by: Johannes Pointner 
Reviewed-by: Guenter Roeck 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio:magnetometer: bugfix magnetometers gain values

2014-10-05T21:54:11+00:00

commit a31d0928999fbf33b3a6042e8bcb7b7f7e07d094 upstream.

This patch fix gains values. The first driver was designed using
engineering samples, in mass production the values are changed.

Signed-off-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment

2014-10-05T21:54:11+00:00

commit 9e5846be33277802c0c76e5c12825d0e4d27f639 upstream.

This can result in wrong reference count for trigger device, call
iio_trigger_get to increment reference.
Refer to http://www.spinics.net/lists/linux-iio/msg13669.html for discussion
with Jonathan.

Signed-off-by: Srinivas Pandruvada 
Acked-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman