staging:iio:adis16204 replace unnecessary event line registration.

Whilst the adis16204 does indeed support events, currently the driver
does not.  The trigger code should never use that infrastructure.

Untested but identical in form to those that have been.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 21 insertions, 25 deletions

diff --git a/drivers/staging/iio/accel/adis16204_trigger.c b/drivers/staging/iio/accel/adis16204_trigger.c
index 8e9db90..85c6487 100644
--- a/drivers/staging/iio/accel/adis16204_trigger.c
+++ b/drivers/staging/iio/accel/adis16204_trigger.c
@@ -15,21 +15,13 @@
 /**
  * adis16204_data_rdy_trig_poll() the event handler for the data rdy trig
  **/
-static int adis16204_data_rdy_trig_poll(struct iio_dev *dev_info,
-				       int index,
-				       s64 timestamp,
-				       int no_test)
+static irqreturn_t adis16204_data_rdy_trig_poll(int irq, void *private)
 {
-	struct adis16204_state *st = iio_dev_get_devdata(dev_info);
-	struct iio_trigger *trig = st->trig;
-
-	iio_trigger_poll(trig, timestamp);
-
+	disable_irq_nosync(irq);
+	iio_trigger_poll(private, iio_get_time_ns());
 	return IRQ_HANDLED;
 }
 
-IIO_EVENT_SH(data_rdy_trig, &adis16204_data_rdy_trig_poll);
-
 static DEVICE_ATTR(name, S_IRUGO, iio_trigger_read_name, NULL);
 
 static struct attribute *adis16204_trigger_attrs[] = {
@@ -49,20 +41,9 @@ static int adis16204_data_rdy_trigger_set_state(struct iio_trigger *trig,
 {
 	struct adis16204_state *st = trig->private_data;
 	struct iio_dev *indio_dev = st->indio_dev;
-	int ret = 0;
 
 	dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
-	ret = adis16204_set_irq(&st->indio_dev->dev, state);
-	if (state == false) {
-		iio_remove_event_from_list(&iio_event_data_rdy_trig,
-					   &indio_dev->interrupts[0]
-					   ->ev_list);
-		flush_scheduled_work();
-	} else {
-		iio_add_event_to_list(&iio_event_data_rdy_trig,
-				      &indio_dev->interrupts[0]->ev_list);
-	}
-	return ret;
+	return adis16204_set_irq(&st->indio_dev->dev, state);
 }
 
 /**
@@ -82,12 +63,24 @@ int adis16204_probe_trigger(struct iio_dev *indio_dev)
 	struct adis16204_state *st = indio_dev->dev_data;
 
 	st->trig = iio_allocate_trigger();
+	if (st->trig == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	ret = request_irq(st->us->irq,
+			  adis16204_data_rdy_trig_poll,
+			  IRQF_TRIGGER_RISING,
+			  "adis16204",
+			  st->trig);
+	if (ret)
+		goto error_free_trig;
+
 	st->trig->name = kasprintf(GFP_KERNEL,
 				"adis16204-dev%d",
 				indio_dev->id);
 	if (!st->trig->name) {
 		ret = -ENOMEM;
-		goto error_free_trig;
+		goto error_free_irq;
 	}
 	st->trig->dev.parent = &st->us->dev;
 	st->trig->owner = THIS_MODULE;
@@ -106,9 +99,11 @@ int adis16204_probe_trigger(struct iio_dev *indio_dev)
 
 error_free_trig_name:
 	kfree(st->trig->name);
+error_free_irq:
+	free_irq(st->us->irq, st->trig);
 error_free_trig:
 	iio_free_trigger(st->trig);
-
+error_ret:
 	return ret;
 }
 
@@ -118,5 +113,6 @@ void adis16204_remove_trigger(struct iio_dev *indio_dev)
 
 	iio_trigger_unregister(state->trig);
 	kfree(state->trig->name);
+	free_irq(state->us->irq, state->trig);
 	iio_free_trigger(state->trig);
 }