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authorVladimir Barinov <vladimir.barinov@cogentembedded.com>2015-08-20 22:37:39 +0300
committerJonathan Cameron <jic23@kernel.org>2015-08-27 20:47:09 +0100
commit735ad074ffa72ccc4fdba8e54eb024df95545e7d (patch)
tree5cc52d06761fba79d2a70ce0d665b1c583bf386c /drivers/iio/industrialio-trigger.c
parent764589b688a1b087b5ff6c1e99f7cd57a5241395 (diff)
downloadlinux-735ad074ffa72ccc4fdba8e54eb024df95545e7d.tar.gz
iio: Support triggered events
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 <vladimir.barinov@cogentembedded.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/industrialio-trigger.c')
-rw-r--r--drivers/iio/industrialio-trigger.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 570606c2adbd..ae2806aafb72 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -366,10 +366,18 @@ static ssize_t iio_trigger_write_current(struct device *dev,
indio_dev->trig = trig;
- if (oldtrig)
+ if (oldtrig) {
+ if (indio_dev->modes & INDIO_EVENT_TRIGGERED)
+ iio_trigger_detach_poll_func(oldtrig,
+ indio_dev->pollfunc_event);
iio_trigger_put(oldtrig);
- if (indio_dev->trig)
+ }
+ if (indio_dev->trig) {
iio_trigger_get(indio_dev->trig);
+ if (indio_dev->modes & INDIO_EVENT_TRIGGERED)
+ iio_trigger_attach_poll_func(indio_dev->trig,
+ indio_dev->pollfunc_event);
+ }
return len;
}