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authorDenis Ciocca <denis.ciocca@gmail.com>2013-02-09 16:08:00 +0000
committerJonathan Cameron <jic23@kernel.org>2013-03-16 10:18:10 +0000
commit43bb786ad2886ea38364e57924c19e9d29f37201 (patch)
tree8d5fd1df4713eeff6823e5f9297cf49142bc7806 /drivers/iio/common
parent0eac259db28fde88767cab5fd0380f4024e08c02 (diff)
downloadvexpress-lsk-43bb786ad2886ea38364e57924c19e9d29f37201.tar.gz
iio:common: Use spi_sync_transfer() in STMicroelectronics common library
Use the new spi_sync_transfer() helper function instead of open-coding it. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/common')
-rw-r--r--drivers/iio/common/st_sensors/st_sensors_spi.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_spi.c b/drivers/iio/common/st_sensors/st_sensors_spi.c
index f0aa2f10522..251baf6abc2 100644
--- a/drivers/iio/common/st_sensors/st_sensors_spi.c
+++ b/drivers/iio/common/st_sensors/st_sensors_spi.c
@@ -29,7 +29,6 @@ static unsigned int st_sensors_spi_get_irq(struct iio_dev *indio_dev)
static int st_sensors_spi_read(struct st_sensor_transfer_buffer *tb,
struct device *dev, u8 reg_addr, int len, u8 *data, bool multiread_bit)
{
- struct spi_message msg;
int err;
struct spi_transfer xfers[] = {
@@ -51,10 +50,7 @@ static int st_sensors_spi_read(struct st_sensor_transfer_buffer *tb,
else
tb->tx_buf[0] = reg_addr | ST_SENSORS_SPI_READ;
- spi_message_init(&msg);
- spi_message_add_tail(&xfers[0], &msg);
- spi_message_add_tail(&xfers[1], &msg);
- err = spi_sync(to_spi_device(dev), &msg);
+ err = spi_sync_transfer(to_spi_device(dev), xfers, ARRAY_SIZE(xfers));
if (err)
goto acc_spi_read_error;
@@ -83,7 +79,6 @@ static int st_sensors_spi_read_multiple_byte(
static int st_sensors_spi_write_byte(struct st_sensor_transfer_buffer *tb,
struct device *dev, u8 reg_addr, u8 data)
{
- struct spi_message msg;
int err;
struct spi_transfer xfers = {
@@ -96,9 +91,7 @@ static int st_sensors_spi_write_byte(struct st_sensor_transfer_buffer *tb,
tb->tx_buf[0] = reg_addr;
tb->tx_buf[1] = data;
- spi_message_init(&msg);
- spi_message_add_tail(&xfers, &msg);
- err = spi_sync(to_spi_device(dev), &msg);
+ err = spi_sync_transfer(to_spi_device(dev), &xfers, 1);
mutex_unlock(&tb->buf_lock);
return err;