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iio: Use spi_sync_transfer()

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Use the new spi_sync_transfer() helper function instead of open-coding it.

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
2013-01-09 17:31:00 +00:00
committed by Jonathan Cameron
parent 6d9eecd418
commit 14543a00fc
10 changed files with 11 additions and 61 deletions
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7
drivers/iio/dac/ad5764.c
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@@ -135,7 +135,6 @@ static int ad5764_read(struct iio_dev *indio_dev, unsigned int reg,
unsigned int *val)
{
struct ad5764_state *st = iio_priv(indio_dev);
struct spi_message m;
int ret;
struct spi_transfer t[] = {
{
@@ -148,15 +147,11 @@ static int ad5764_read(struct iio_dev *indio_dev, unsigned int reg,
},
};
spi_message_init(&m);
spi_message_add_tail(&t[0], &m);
spi_message_add_tail(&t[1], &m);
mutex_lock(&indio_dev->mlock);
st->data[0].d32 = cpu_to_be32((1 << 23) | (reg << 16));
ret = spi_sync(st->spi, &m);
ret = spi_sync_transfer(st->spi, t, ARRAY_SIZE(t));
if (ret >= 0)
*val = be32_to_cpu(st->data[1].d32) & 0xffff;