From: Jonathan Cameron <jic23@xxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/iio/imu/adis16400.h | 9 -----
drivers/staging/iio/imu/adis16400_core.c | 55 ++----------------------------
2 files changed, 3 insertions(+), 61 deletions(-)
diff --git a/drivers/staging/iio/imu/adis16400.h b/drivers/staging/iio/imu/adis16400.h
index a8062f6..5a69a7a 100644
--- a/drivers/staging/iio/imu/adis16400.h
+++ b/drivers/staging/iio/imu/adis16400.h
@@ -147,21 +147,12 @@ struct adis16400_state {
struct mutex buf_lock;
};
-int adis16400_spi_write_reg_8(struct device *dev,
- u8 reg_address,
- u8 val);
-
int adis16400_spi_read_burst(struct device *dev, u8 *rx);
-int adis16400_spi_read_sequence(struct device *dev,
- u8 *tx, u8 *rx, int num);
-
int adis16400_set_irq(struct device *dev, bool enable);
int adis16400_reset(struct device *dev);
-int adis16400_stop_device(struct device *dev);
-
int adis16400_check_status(struct device *dev);
#ifdef CONFIG_IIO_RING_BUFFER
diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c
index 868c526..e69e2ce 100644
--- a/drivers/staging/iio/imu/adis16400_core.c
+++ b/drivers/staging/iio/imu/adis16400_core.c
@@ -47,7 +47,7 @@
* @reg_address: the address of the register to be written
* @val: the value to write
**/
-int adis16400_spi_write_reg_8(struct device *dev,
+static int adis16400_spi_write_reg_8(struct device *dev,
u8 reg_address,
u8 val)
{
@@ -209,55 +209,6 @@ int adis16400_spi_read_burst(struct device *dev, u8 *rx)
return ret;
}
-/**
- * adis16400_spi_read_sequence() - read a sequence of 16-bit registers
- * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @tx: register addresses in bytes 0,2,4,6... (min size is 2*num bytes)
- * @rx: somewhere to pass back the value read (min size is 2*num bytes)
- **/
-int adis16400_spi_read_sequence(struct device *dev,
- u8 *tx, u8 *rx, int num)
-{
- struct spi_message msg;
- struct spi_transfer *xfers;
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16400_state *st = iio_dev_get_devdata(indio_dev);
- int ret, i;
-
- xfers = kzalloc(num + 1, GFP_KERNEL);
- if (xfers == NULL) {
- dev_err(&st->us->dev, "memory alloc failed");
- ret = -ENOMEM;
- goto error_ret;
- }
-
- /* tx: |add1|addr2|addr3|...|addrN |zero|
- * rx: |zero|res1 |res2 |...|resN-1|resN| */
- spi_message_init(&msg);
- for (i = 0; i < num + 1; i++) {
- if (i > 0)
- xfers[i].rx_buf = st->rx + 2*(i - 1);
- if (i < num)
- xfers[i].tx_buf = st->tx + 2*i;
- xfers[i].bits_per_word = 8;
- xfers[i].len = 2;
- xfers[i].cs_change = 1;
- spi_message_add_tail(&xfers[i], &msg);
- }
-
- mutex_lock(&st->buf_lock);
-
- ret = spi_sync(st->us, &msg);
- if (ret)
- dev_err(&st->us->dev, "problem when reading sequence");
-
- mutex_unlock(&st->buf_lock);
- kfree(xfers);
-
-error_ret:
- return ret;
-}
-
static ssize_t adis16400_spi_read_signed(struct device *dev,
struct device_attribute *attr,
char *buf,
@@ -450,7 +401,7 @@ int adis16400_reset(struct device *dev)
}
/* Power down the device */
-int adis16400_stop_device(struct device *dev)
+static int adis16400_stop_device(struct device *dev)
{
int ret;
u16 val = ADIS16400_SLP_CNT_POWER_OFF;
@@ -462,7 +413,7 @@ int adis16400_stop_device(struct device *dev)
return ret;
}
-int adis16400_self_test(struct device *dev)
+static int adis16400_self_test(struct device *dev)
{
int ret;
ret = adis16400_spi_write_reg_16(dev,
--
1.7.0.3
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