1 files changed, 0 insertions, 139 deletions
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
deleted file mode 100644
index 5f74f3b7671a..000000000000
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * max1363_ring.c
- */
-
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/bitops.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include "../ring_sw.h"
-#include <linux/iio/trigger_consumer.h>
-
-#include "max1363.h"
-
-int max1363_update_scan_mode(struct iio_dev *indio_dev,
-			     const unsigned long *scan_mask)
-{
-	struct max1363_state *st = iio_priv(indio_dev);
-
-	/*
-	 * Need to figure out the current mode based upon the requested
-	 * scan mask in iio_dev
-	 */
-	st->current_mode = max1363_match_mode(scan_mask, st->chip_info);
-	if (!st->current_mode)
-		return -EINVAL;
-	max1363_set_scan_mode(st);
-	return 0;
-}
-
-static irqreturn_t max1363_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct max1363_state *st = iio_priv(indio_dev);
-	s64 time_ns;
-	__u8 *rxbuf;
-	int b_sent;
-	size_t d_size;
-	unsigned long numvals = bitmap_weight(st->current_mode->modemask,
-					      MAX1363_MAX_CHANNELS);
-
-	/* Ensure the timestamp is 8 byte aligned */
-	if (st->chip_info->bits != 8)
-		d_size = numvals*2;
-	else
-		d_size = numvals;
-	if (indio_dev->scan_timestamp) {
-		d_size += sizeof(s64);
-		if (d_size % sizeof(s64))
-			d_size += sizeof(s64) - (d_size % sizeof(s64));
-	}
-	/* Monitor mode prevents reading. Whilst not currently implemented
-	 * might as well have this test in here in the meantime as it does
-	 * no harm.
-	 */
-	if (numvals == 0)
-		goto done;
-
-	rxbuf = kmalloc(d_size,	GFP_KERNEL);
-	if (rxbuf == NULL)
-		goto done;
-	if (st->chip_info->bits != 8)
-		b_sent = i2c_master_recv(st->client, rxbuf, numvals*2);
-	else
-		b_sent = i2c_master_recv(st->client, rxbuf, numvals);
-	if (b_sent < 0)
-		goto done_free;
-
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
-	iio_push_to_buffer(indio_dev->buffer, rxbuf);
-
-done_free:
-	kfree(rxbuf);
-done:
-	iio_trigger_notify_done(indio_dev->trig);
-
-	return IRQ_HANDLED;
-}
-
-static const struct iio_buffer_setup_ops max1363_ring_setup_ops = {
-	.postenable = &iio_triggered_buffer_postenable,
-	.preenable = &iio_sw_buffer_preenable,
-	.predisable = &iio_triggered_buffer_predisable,
-};
-
-int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	struct max1363_state *st = iio_priv(indio_dev);
-	int ret = 0;
-
-	indio_dev->buffer = iio_sw_rb_allocate(indio_dev);
-	if (!indio_dev->buffer) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	indio_dev->pollfunc = iio_alloc_pollfunc(NULL,
-						 &max1363_trigger_handler,
-						 IRQF_ONESHOT,
-						 indio_dev,
-						 "%s_consumer%d",
-						 st->client->name,
-						 indio_dev->id);
-	if (indio_dev->pollfunc == NULL) {
-		ret = -ENOMEM;
-		goto error_deallocate_sw_rb;
-	}
-	/* Ring buffer functions - here trigger setup related */
-	indio_dev->setup_ops = &max1363_ring_setup_ops;
-
-	/* Flag that polled ring buffering is possible */
-	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-
-	return 0;
-
-error_deallocate_sw_rb:
-	iio_sw_rb_free(indio_dev->buffer);
-error_ret:
-	return ret;
-}
-
-void max1363_ring_cleanup(struct iio_dev *indio_dev)
-{
-	/* ensure that the trigger has been detached */
-	iio_dealloc_pollfunc(indio_dev->pollfunc);
-	iio_sw_rb_free(indio_dev->buffer);
-}