staging:iio:adis16400: Use adis library

Use the new adis library for the adis16400 driver. This allows us to completely
scrap the adis16400 trigger code and more than half of the core driver code. For
now we can not make use of the generic adis buffer implementation since the
adis16400 driver has special requirements due to its burst mode support. But
we will eventually get to this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 0 insertions, 74 deletions

diff --git a/drivers/staging/iio/imu/adis16400_trigger.c b/drivers/staging/iio/imu/adis16400_trigger.c
deleted file mode 100644
index 42a678e..0000000
--- a/drivers/staging/iio/imu/adis16400_trigger.c
+++ /dev/null
@@ -1,74 +0,0 @@
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/export.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-#include "adis16400.h"
-
-/**
- * adis16400_data_rdy_trigger_set_state() set datardy interrupt state
- **/
-static int adis16400_data_rdy_trigger_set_state(struct iio_trigger *trig,
-						bool state)
-{
-	struct iio_dev *indio_dev = trig->private_data;
-
-	dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
-	return adis16400_set_irq(indio_dev, state);
-}
-
-static const struct iio_trigger_ops adis16400_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = &adis16400_data_rdy_trigger_set_state,
-};
-
-int adis16400_probe_trigger(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct adis16400_state *st = iio_priv(indio_dev);
-
-	st->trig = iio_trigger_alloc("%s-dev%d",
-					indio_dev->name,
-					indio_dev->id);
-	if (st->trig == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-
-	ret = request_irq(st->us->irq,
-			  &iio_trigger_generic_data_rdy_poll,
-			  IRQF_TRIGGER_RISING,
-			  "adis16400",
-			  st->trig);
-	if (ret)
-		goto error_free_trig;
-	st->trig->dev.parent = &st->us->dev;
-	st->trig->private_data = indio_dev;
-	st->trig->ops = &adis16400_trigger_ops;
-	ret = iio_trigger_register(st->trig);
-
-	/* select default trigger */
-	indio_dev->trig = st->trig;
-	if (ret)
-		goto error_free_irq;
-
-	return 0;
-
-error_free_irq:
-	free_irq(st->us->irq, st->trig);
-error_free_trig:
-	iio_trigger_free(st->trig);
-error_ret:
-	return ret;
-}
-
-void adis16400_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct adis16400_state *st = iio_priv(indio_dev);
-
-	iio_trigger_unregister(st->trig);
-	free_irq(st->us->irq, st->trig);
-	iio_trigger_free(st->trig);
-}