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iio:adis16130: Use spi_sync_transfer()

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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>
This commit is contained in:
Lars-Peter Clausen
2013-10-05 08:45:00 +01:00
committed by Jonathan Cameron
parent 35734fbdb5
commit f28607f3bf
1 changed files with 1 additions and 5 deletions
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drivers/iio/gyro/adis16130.c
+1 -5
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@@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
{ {
int ret; int ret;
struct adis16130_state *st = iio_priv(indio_dev); struct adis16130_state *st = iio_priv(indio_dev);
struct spi_message msg;
struct spi_transfer xfer = { struct spi_transfer xfer = {
.tx_buf = st->buf, .tx_buf = st->buf,
.rx_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[0] = ADIS16130_CON_RD | reg_addr;
st->buf[1] = st->buf[2] = st->buf[3] = 0; st->buf[1] = st->buf[2] = st->buf[3] = 0;
spi_message_init(&msg); ret = spi_sync_transfer(st->us, &xfer, 1);
spi_message_add_tail(&xfer, &msg);
ret = spi_sync(st->us, &msg);
if (ret == 0) if (ret == 0)
*val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3]; *val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
mutex_unlock(&st->buf_lock); mutex_unlock(&st->buf_lock);