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iio:ad5449: 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 476b9547e8
commit 66a1891642
1 changed files with 1 additions and 6 deletions
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7
drivers/iio/dac/ad5449.c
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@ -101,7 +101,6 @@ static int ad5449_read(struct iio_dev *indio_dev, unsigned int addr,
{
struct ad5449 *st = iio_priv(indio_dev);
int ret;
struct spi_message msg;
struct spi_transfer t[] = {
{
.tx_buf = &st->data[0],
@ -114,15 +113,11 @@ static int ad5449_read(struct iio_dev *indio_dev, unsigned int addr,
},
};
spi_message_init(&msg);
spi_message_add_tail(&t[0], &msg);
spi_message_add_tail(&t[1], &msg);
mutex_lock(&indio_dev->mlock);
st->data[0] = cpu_to_be16(addr << 12);
st->data[1] = cpu_to_be16(AD5449_CMD_NOOP);
ret = spi_sync(st->spi, &msg);
ret = spi_sync_transfer(st->spi, t, ARRAY_SIZE(t));
if (ret < 0)
goto out_unlock;