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iio:adxrs450: 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 af3d5cad0a
commit 35734fbdb5
1 changed files with 2 additions and 10 deletions
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12
drivers/iio/gyro/adxrs450.c
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@ -90,7 +90,6 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
u8 reg_address, u8 reg_address,
u16 *val) u16 *val)
{ {
struct spi_message msg;
struct adxrs450_state *st = iio_priv(indio_dev); struct adxrs450_state *st = iio_priv(indio_dev);
u32 tx; u32 tx;
int ret; int ret;
@ -114,10 +113,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
tx |= ADXRS450_P; tx |= ADXRS450_P;
st->tx = cpu_to_be32(tx); st->tx = cpu_to_be32(tx);
spi_message_init(&msg); ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
spi_message_add_tail(&xfers[0], &msg);
spi_message_add_tail(&xfers[1], &msg);
ret = spi_sync(st->us, &msg);
if (ret) { if (ret) {
dev_err(&st->us->dev, "problem while reading 16 bit register 0x%02x\n", dev_err(&st->us->dev, "problem while reading 16 bit register 0x%02x\n",
reg_address); reg_address);
@ -169,7 +165,6 @@ static int adxrs450_spi_write_reg_16(struct iio_dev *indio_dev,
**/ **/
static int adxrs450_spi_sensor_data(struct iio_dev *indio_dev, s16 *val) static int adxrs450_spi_sensor_data(struct iio_dev *indio_dev, s16 *val)
{ {
struct spi_message msg;
struct adxrs450_state *st = iio_priv(indio_dev); struct adxrs450_state *st = iio_priv(indio_dev);
int ret; int ret;
struct spi_transfer xfers[] = { struct spi_transfer xfers[] = {
@ -188,10 +183,7 @@ static int adxrs450_spi_sensor_data(struct iio_dev *indio_dev, s16 *val)
mutex_lock(&st->buf_lock); mutex_lock(&st->buf_lock);
st->tx = cpu_to_be32(ADXRS450_SENSOR_DATA); st->tx = cpu_to_be32(ADXRS450_SENSOR_DATA);
spi_message_init(&msg); ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
spi_message_add_tail(&xfers[0], &msg);
spi_message_add_tail(&xfers[1], &msg);
ret = spi_sync(st->us, &msg);
if (ret) { if (ret) {
dev_err(&st->us->dev, "Problem while reading sensor data\n"); dev_err(&st->us->dev, "Problem while reading sensor data\n");
goto error_ret; goto error_ret;