linux-toradex.git/drivers/iio/industrialio-trigger.c, branch v4.4.2

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

iio:trigger: Fix use_count race condition

2013-07-20T09:18:53+00:00

When using more than one trigger consumer it can happen that multiple threads
perform a read-modify-update cycle on 'use_count' concurrently. This can cause
updates to be lost and use_count can get stuck at non-zero value, in which case
the IIO core assumes that at least one thread is still running and will wait for
it to finish before running any trigger handlers again. This effectively renders
the trigger disabled and a reboot is necessary before it can be used again. To
fix this make use_count an atomic variable. Also set it to the number of
consumers before starting the first consumer, otherwise it might happen that
use_count drops to 0 even though not all consumers have been run yet.

Signed-off-by: Lars-Peter Clausen 
Tested-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron