staging:iio:adc:max1363 consolidate files.

For a long while now the max1363 core has selected the
buffer anyway. For a while I meant to make the separation
work again, but given how long it has been it is probably
time to conclude it will never happen and settle for tidying
up what we have.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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 41af17b5e74f..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 <linux/iio/kfifo_buf.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_buffers(indio_dev, 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_kfifo_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_kfifo_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_kfifo_free(indio_dev->buffer);
-}