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path: root/drivers/iio/imu/adis16400_buffer.c
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Diffstat (limited to 'drivers/iio/imu/adis16400_buffer.c')
-rw-r--r--drivers/iio/imu/adis16400_buffer.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/drivers/iio/imu/adis16400_buffer.c b/drivers/iio/imu/adis16400_buffer.c
deleted file mode 100644
index 199bd72348eb..000000000000
--- a/drivers/iio/imu/adis16400_buffer.c
+++ /dev/null
@@ -1,59 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/interrupt.h>
-#include <linux/mutex.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/bitops.h>
-#include <linux/export.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/triggered_buffer.h>
-#include <linux/iio/trigger_consumer.h>
-
-#include "adis16400.h"
-
-int adis16400_update_scan_mode(struct iio_dev *indio_dev,
- const unsigned long *scan_mask)
-{
- struct adis16400_state *st = iio_priv(indio_dev);
- struct adis *adis = &st->adis;
- unsigned int burst_length;
- u8 *tx;
-
- if (!adis->burst || !adis->burst->en)
- return adis_update_scan_mode(indio_dev, scan_mask);
-
- kfree(adis->xfer);
- kfree(adis->buffer);
-
- /* All but the timestamp channel */
- burst_length = (indio_dev->num_channels - 1) * sizeof(u16);
- burst_length += adis->burst->extra_len;
-
- adis->xfer = kcalloc(2, sizeof(*adis->xfer), GFP_KERNEL);
- if (!adis->xfer)
- return -ENOMEM;
-
- adis->buffer = kzalloc(burst_length + sizeof(u16), GFP_KERNEL);
- if (!adis->buffer)
- return -ENOMEM;
-
- tx = adis->buffer + burst_length;
- tx[0] = ADIS_READ_REG(adis->burst->reg_cmd);
- tx[1] = 0;
-
- adis->xfer[0].tx_buf = tx;
- adis->xfer[0].bits_per_word = 8;
- adis->xfer[0].len = 2;
- adis->xfer[1].rx_buf = adis->buffer;
- adis->xfer[1].bits_per_word = 8;
- adis->xfer[1].len = burst_length;
-
- spi_message_init(&adis->msg);
- spi_message_add_tail(&adis->xfer[0], &adis->msg);
- spi_message_add_tail(&adis->xfer[1], &adis->msg);
-
- return 0;
-}