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iio:ad5449: Use spi_sync_transfer()
author
Lars-Peter Clausen
<lars@metafoo.de>
Sat, 5 Oct 2013 07:45:00 +0000
(08:45 +0100)
committer
Jonathan Cameron
<jic23@kernel.org>
Sat, 5 Oct 2013 10:58:19 +0000
(11:58 +0100)
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>
drivers/iio/dac/ad5449.c
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diff --git
a/drivers/iio/dac/ad5449.c
b/drivers/iio/dac/ad5449.c
index
fff7d07
..
82e208f
100644
(file)
--- a/
drivers/iio/dac/ad5449.c
+++ b/
drivers/iio/dac/ad5449.c
@@
-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;