iio:adis16130: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
index 9155cf6..445c2ae 100644 (file)
--- a/drivers/iio/gyro/adis16130.c
+++ b/drivers/iio/gyro/adis16130.c
@@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
 {
        int ret;
        struct adis16130_state *st = iio_priv(indio_dev);
-       struct spi_message msg;
        struct spi_transfer xfer = {
                .tx_buf = st->buf,
                .rx_buf = st->buf,
@@ -59,10 +58,7 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
        st->buf[0] = ADIS16130_CON_RD | reg_addr;
        st->buf[1] = st->buf[2] = st->buf[3] = 0;
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->us, &msg);
-
+       ret = spi_sync_transfer(st->us, &xfer, 1);
        if (ret == 0)
                *val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
        mutex_unlock(&st->buf_lock);