linux-toradex.git/drivers/iio/industrialio-trigger.c, branch v4.4.53

iio: Fix error handling in iio_trigger_attach_poll_func

2016-07-27T16:47:36+00:00

commit 99543823357966ac938d9a310947e731b67338e6 upstream.

When attaching a pollfunc iio_trigger_attach_poll_func will allocate a
virtual irq and call the driver's set_trigger_state function. Fix error
handling to undo previous steps if any fails.

In particular this fixes handling errors from a driver's
set_trigger_state function. When using triggered buffers a failure to
enable the trigger used to make the buffer unusable.

Signed-off-by: Crestez Dan Leonard 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: Support triggered events

2015-08-27T19:47:09+00:00

Support triggered events.

This is useful for chips that don't have their own interrupt sources.
It allows to use generic/standalone iio triggers for those drivers.

Signed-off-by: Vladimir Barinov 
Signed-off-by: Jonathan Cameron

iio: trigger: Add missing fields in kernel docs

2015-08-08T11:45:49+00:00

Fix kernel docs warnings by adding the missing description
for each of the existing function parameters.

Signed-off-by: Cristina Opriceana 
Signed-off-by: Jonathan Cameron

iio: Remove timestamp argument from iio_trigger_poll() and iio_trigger_poll_chained()

2014-06-14T15:25:59+00:00

argument has been ignored; adjust drivers accordingly

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

iio get rid of unneccessary error_ret

2014-02-18T08:46:36+00:00

Get rid of obsolete uses of goto error_ret and some empty lines.

Signed-off-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

iio:trigger: Convert to use ATTRIBUTE_GROUPS

2013-12-03T20:22:29+00:00

Use new ATTRIBUTE_GROUPS macro to declare attribute groups.

Signed-off-by: Axel Lin 
Signed-off-by: Jonathan Cameron

iio: Remove redundant check that new trigger is different from old

2013-11-24T21:07:13+00:00

same check is performed a new lines above

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

iio: Minor kerneldoc fix for iio_trigger_write_current()

2013-11-24T21:07:12+00:00

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

iio: core: Move kernel doc to the right location

2013-11-24T21:07:11+00:00

Documentation related to function should be placed above
its implementation. Move it accordingly.

Signed-off-by: Sachin Kamat 
Cc: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: trigger: implement devm_iio_trigger_alloc/devm_iio_triger_free

2013-08-17T18:34:52+00:00

Add a resource managed devm_iio_trigger_alloc()/devm_iio_triger_free()
to automatically clean up triggers allocated by IIO drivers, thus
leading to simplified IIO drivers code.

Signed-off-by: Jacek Anaszewski 
Signed-off-by: Kyunmin Park 
Signed-off-by: Jonathan Cameron