1 files changed, 0 insertions, 102 deletions
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
deleted file mode 100644
index 0572df9aad85..000000000000
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright 2011-2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- *
- */
-
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-
-#include "ad7606.h"
-
-/**
- * ad7606_trigger_handler_th() th/bh of trigger launched polling to ring buffer
- *
- **/
-static irqreturn_t ad7606_trigger_handler_th_bh(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct ad7606_state *st = iio_priv(pf->indio_dev);
-
-	gpio_set_value(st->pdata->gpio_convst, 1);
-
-	return IRQ_HANDLED;
-}
-
-/**
- * ad7606_poll_bh_to_ring() bh of trigger launched polling to ring buffer
- * @work_s:	the work struct through which this was scheduled
- *
- * Currently there is no option in this driver to disable the saving of
- * timestamps within the ring.
- * I think the one copy of this at a time was to avoid problems if the
- * trigger was set far too high and the reads then locked up the computer.
- **/
-static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
-{
-	struct ad7606_state *st = container_of(work_s, struct ad7606_state,
-						poll_work);
-	struct iio_dev *indio_dev = iio_priv_to_dev(st);
-	__u8 *buf;
-	int ret;
-
-	buf = kzalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (!buf)
-		return;
-
-	if (gpio_is_valid(st->pdata->gpio_frstdata)) {
-		ret = st->bops->read_block(st->dev, 1, buf);
-		if (ret)
-			goto done;
-		if (!gpio_get_value(st->pdata->gpio_frstdata)) {
-			/* This should never happen. However
-			 * some signal glitch caused by bad PCB desgin or
-			 * electrostatic discharge, could cause an extra read
-			 * or clock. This allows recovery.
-			 */
-			ad7606_reset(st);
-			goto done;
-		}
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels - 1, buf + 2);
-		if (ret)
-			goto done;
-	} else {
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels, buf);
-		if (ret)
-			goto done;
-	}
-
-	iio_push_to_buffers_with_timestamp(indio_dev, buf,
-					   iio_get_time_ns(indio_dev));
-done:
-	gpio_set_value(st->pdata->gpio_convst, 0);
-	iio_trigger_notify_done(indio_dev->trig);
-	kfree(buf);
-}
-
-int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring);
-
-	return iio_triggered_buffer_setup(indio_dev,
-		&ad7606_trigger_handler_th_bh, &ad7606_trigger_handler_th_bh,
-		NULL);
-}
-
-void ad7606_ring_cleanup(struct iio_dev *indio_dev)
-{
-	iio_triggered_buffer_cleanup(indio_dev);
-}