These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / iio / industrialio-triggered-buffer.c

diff --git a/kernel/drivers/iio/industrialio-triggered-buffer.c b/kernel/drivers/iio/industrialio-triggered-buffer.c
deleted file mode 100644 (file)
index 15a5341..0000000
--- a/kernel/drivers/iio/industrialio-triggered-buffer.c
+++ /dev/null
@@ -1,103 +0,0 @@
- /*
- * Copyright (c) 2012 Analog Devices, Inc.
- *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/module.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/kfifo_buf.h>
-#include <linux/iio/triggered_buffer.h>
-#include <linux/iio/trigger_consumer.h>
-
-static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
-       .postenable = &iio_triggered_buffer_postenable,
-       .predisable = &iio_triggered_buffer_predisable,
-};
-
-/**
- * iio_triggered_buffer_setup() - Setup triggered buffer and pollfunc
- * @indio_dev:         IIO device structure
- * @pollfunc_bh:       Function which will be used as pollfunc bottom half
- * @pollfunc_th:       Function which will be used as pollfunc top half
- * @setup_ops:         Buffer setup functions to use for this device.
- *                     If NULL the default setup functions for triggered
- *                     buffers will be used.
- *
- * This function combines some common tasks which will normally be performed
- * when setting up a triggered buffer. It will allocate the buffer and the
- * pollfunc.
- *
- * Before calling this function the indio_dev structure should already be
- * completely initialized, but not yet registered. In practice this means that
- * this function should be called right before iio_device_register().
- *
- * To free the resources allocated by this function call
- * iio_triggered_buffer_cleanup().
- */
-int iio_triggered_buffer_setup(struct iio_dev *indio_dev,
-       irqreturn_t (*pollfunc_bh)(int irq, void *p),
-       irqreturn_t (*pollfunc_th)(int irq, void *p),
-       const struct iio_buffer_setup_ops *setup_ops)
-{
-       struct iio_buffer *buffer;
-       int ret;
-
-       buffer = iio_kfifo_allocate();
-       if (!buffer) {
-               ret = -ENOMEM;
-               goto error_ret;
-       }
-
-       iio_device_attach_buffer(indio_dev, buffer);
-
-       indio_dev->pollfunc = iio_alloc_pollfunc(pollfunc_bh,
-                                                pollfunc_th,
-                                                IRQF_ONESHOT,
-                                                indio_dev,
-                                                "%s_consumer%d",
-                                                indio_dev->name,
-                                                indio_dev->id);
-       if (indio_dev->pollfunc == NULL) {
-               ret = -ENOMEM;
-               goto error_kfifo_free;
-       }
-
-       /* Ring buffer functions - here trigger setup related */
-       if (setup_ops)
-               indio_dev->setup_ops = setup_ops;
-       else
-               indio_dev->setup_ops = &iio_triggered_buffer_setup_ops;
-
-       /* Flag that polled ring buffering is possible */
-       indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-
-       return 0;
-
-error_kfifo_free:
-       iio_kfifo_free(indio_dev->buffer);
-error_ret:
-       return ret;
-}
-EXPORT_SYMBOL(iio_triggered_buffer_setup);
-
-/**
- * iio_triggered_buffer_cleanup() - Free resources allocated by iio_triggered_buffer_setup()
- * @indio_dev: IIO device structure
- */
-void iio_triggered_buffer_cleanup(struct iio_dev *indio_dev)
-{
-       iio_dealloc_pollfunc(indio_dev->pollfunc);
-       iio_kfifo_free(indio_dev->buffer);
-}
-EXPORT_SYMBOL(iio_triggered_buffer_cleanup);
-
-MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-MODULE_DESCRIPTION("IIO helper functions for setting up triggered buffers");
-MODULE_LICENSE("GPL");