Merge tag 'iio-for-3.9d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

"4th set of IIO new drivers cleanups and fixes for the 3.9 cycle
+ a new spi helper function.

1) Introduce spi_sync_transfer and use it within IIO.  Originally
   it was envisioned that this nice little boilerplate replacement
   would go through the spi tree, but Grant Likely stated he'd
   prefer we take it through IIO as the example usecases were all
   in IIO (and are also in this pull request).  Note that given
   their may have been some unresolved elements related to the
   coccinelle element of the patch, that has been stripped out
   and will doubtlessly follow at a later date (along with
   lots of other patches for drivers elsewhere in the tree).

2) New Invensense MPU6050 driver.  This is stripped down to pretty
   much the basics from the original submission with the intent
   to build up all the fancy bits in an incremental (and hence
   reviewable fashion). It's been through a good few revisions
   so nice to finally merge this.

3) Change to iio_channel_get api to simplify device tree based
   mappings.  The actual mappings are currently under review.

4) Build fixes for !CONFIG_IIO_TRIGGER in the st_sensors driver.
   This one snuck past during review and testing but got picked
   up by Randy Dunlap in a randconfig build.

5) Some max1363 cleanups and enhancements.

6) Some comment fixes to make them coherent and comprehensible.

7) Trivial build warning fix in mxs-lradc"

14 files changed, 28 insertions, 125 deletions

diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 37ed1b8..0e01930 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -53,7 +53,6 @@ int lis3l02dq_spi_read_reg_8(struct iio_dev *indio_dev,
 			     u8 reg_address, u8 *val)
 {
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	struct spi_message msg;
 	int ret;
 	struct spi_transfer xfer = {
 		.tx_buf = st->tx,
@@ -66,9 +65,7 @@ int lis3l02dq_spi_read_reg_8(struct iio_dev *indio_dev,
 	st->tx[0] = LIS3L02DQ_READ_REG(reg_address);
 	st->tx[1] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, &xfer, 1);
 	*val = st->rx[1];
 	mutex_unlock(&st->buf_lock);
 
@@ -109,7 +106,6 @@ static int lis3l02dq_spi_write_reg_s16(struct iio_dev *indio_dev,
 				       s16 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfers[] = { {
 			.tx_buf = st->tx,
@@ -129,10 +125,7 @@ static int lis3l02dq_spi_write_reg_s16(struct iio_dev *indio_dev,
 	st->tx[2] = LIS3L02DQ_WRITE_REG(lower_reg_address + 1);
 	st->tx[3] = (value >> 8) & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -143,8 +136,6 @@ static int lis3l02dq_read_reg_s16(struct iio_dev *indio_dev,
 				  int *val)
 {
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	struct spi_message msg;
 	int ret;
 	s16 tempval;
 	struct spi_transfer xfers[] = { {
@@ -167,10 +158,7 @@ static int lis3l02dq_read_reg_s16(struct iio_dev *indio_dev,
 	st->tx[2] = LIS3L02DQ_READ_REG(lower_reg_address + 1);
 	st->tx[3] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 16 bit register");
 		goto error_ret;
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 414d3ca..14683f5 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -90,7 +90,6 @@ int sca3000_read_data_short(struct sca3000_state *st,
 			    uint8_t reg_address_high,
 			    int len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer[2] = {
 		{
 			.len = 1,
@@ -101,11 +100,8 @@ int sca3000_read_data_short(struct sca3000_state *st,
 		}
 	};
 	st->tx[0] = SCA3000_READ_REG(reg_address_high);
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer[0], &msg);
-	spi_message_add_tail(&xfer[1], &msg);
 
-	return spi_sync(st->us, &msg);
+	return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
 }
 
 /**
@@ -133,7 +129,6 @@ static int sca3000_reg_lock_on(struct sca3000_state *st)
  **/
 static int __sca3000_unlock_reg_lock(struct sca3000_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer[3] = {
 		{
 			.len = 2,
@@ -154,12 +149,8 @@ static int __sca3000_unlock_reg_lock(struct sca3000_state *st)
 	st->tx[3] = 0x50;
 	st->tx[4] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK);
 	st->tx[5] = 0xA0;
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer[0], &msg);
-	spi_message_add_tail(&xfer[1], &msg);
-	spi_message_add_tail(&xfer[2], &msg);
 
-	return spi_sync(st->us, &msg);
+	return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
 }
 
 /**
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index cbec2f1..3e5e860 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -39,7 +39,6 @@ static int sca3000_read_data(struct sca3000_state *st,
 			    int len)
 {
 	int ret;
-	struct spi_message msg;
 	struct spi_transfer xfer[2] = {
 		{
 			.len = 1,
@@ -55,10 +54,7 @@ static int sca3000_read_data(struct sca3000_state *st,
 	}
 	xfer[1].rx_buf = *rx_p;
 	st->tx[0] = SCA3000_READ_REG(reg_address_high);
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer[0], &msg);
-	spi_message_add_tail(&xfer[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
 	if (ret) {
 		dev_err(get_device(&st->us->dev), "problem reading register");
 		goto error_free_rx;
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index fa81a49..1f190c1 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -199,12 +199,8 @@ static int __ad7280_read32(struct spi_device *spi, unsigned *val)
 		.rx_buf = &rx_buf,
 		.len = 4,
 	};
-	struct spi_message m;
 
-	spi_message_init(&m);
-	spi_message_add_tail(&t, &m);
-
-	ret = spi_sync(spi, &m);
+	ret = spi_sync_transfer(spi, &t, 1);
 	if (ret)
 		return ret;
 
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index b1b8c42..f5fb0df 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -114,7 +114,7 @@ struct mxs_lradc_of_config {
 	const char * const	*irq_name;
 };
 
-static const struct mxs_lradc_of_config const mxs_lradc_of_config[] = {
+static const struct mxs_lradc_of_config mxs_lradc_of_config[] = {
 	[IMX23_LRADC] = {
 		.irq_count	= ARRAY_SIZE(mx23_lradc_irq_names),
 		.irq_name	= mx23_lradc_irq_names,
diff --git a/drivers/staging/iio/frequency/ad5930.c b/drivers/staging/iio/frequency/ad5930.c
index 23777be..69e90e9 100644
--- a/drivers/staging/iio/frequency/ad5930.c
+++ b/drivers/staging/iio/frequency/ad5930.c
@@ -44,7 +44,6 @@ static ssize_t ad5930_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad5903_config *config = (struct ad5903_config *)buf;
@@ -64,9 +63,7 @@ static ssize_t ad5930_set_parameter(struct device *dev,
 	xfer.tx_buf = config;
 	mutex_lock(&st->lock);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 error_ret:
diff --git a/drivers/staging/iio/frequency/ad9850.c b/drivers/staging/iio/frequency/ad9850.c
index 104f7a4..01a8a93 100644
--- a/drivers/staging/iio/frequency/ad9850.c
+++ b/drivers/staging/iio/frequency/ad9850.c
@@ -39,7 +39,6 @@ static ssize_t ad9850_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9850_config *config = (struct ad9850_config *)buf;
@@ -50,9 +49,7 @@ static ssize_t ad9850_set_parameter(struct device *dev,
 	xfer.tx_buf = config;
 	mutex_lock(&st->lock);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 error_ret:
diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
index 17ac825..1344031 100644
--- a/drivers/staging/iio/frequency/ad9852.c
+++ b/drivers/staging/iio/frequency/ad9852.c
@@ -183,7 +183,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9852_set_parameter, 0);
 
 static void ad9852_init(struct ad9852_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	u8 config[5];
@@ -199,9 +198,7 @@ static void ad9852_init(struct ad9852_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &config;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 51c3bde..e5943e2 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -103,7 +103,6 @@ static int ade7753_spi_read_reg_24(struct device *dev,
 		u8 reg_address,
 		u32 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7753_state *st = iio_priv(indio_dev);
 	int ret;
@@ -122,10 +121,7 @@ static int ade7753_spi_read_reg_24(struct device *dev,
 	mutex_lock(&st->buf_lock);
 	st->tx[0] = ADE7753_READ_REG(reg_address);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
 				reg_address);
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index b50c89e..7b6503b 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -103,7 +103,6 @@ static int ade7754_spi_read_reg_24(struct device *dev,
 		u8 reg_address,
 		u32 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7754_state *st = iio_priv(indio_dev);
 	int ret;
@@ -122,9 +121,7 @@ static int ade7754_spi_read_reg_24(struct device *dev,
 	st->tx[2] = 0;
 	st->tx[3] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(xfers, &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
 				reg_address);
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 3454e51..53c68dc 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -47,7 +47,6 @@ static int ade7758_spi_write_reg_16(struct device *dev,
 		u16 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7758_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfers[] = {
@@ -63,9 +62,7 @@ static int ade7758_spi_write_reg_16(struct device *dev,
 	st->tx[1] = (value >> 8) & 0xFF;
 	st->tx[2] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(xfers, &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -76,7 +73,6 @@ static int ade7758_spi_write_reg_24(struct device *dev,
 		u32 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7758_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfers[] = {
@@ -93,9 +89,7 @@ static int ade7758_spi_write_reg_24(struct device *dev,
 	st->tx[2] = (value >> 8) & 0xFF;
 	st->tx[3] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(xfers, &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -105,7 +99,6 @@ int ade7758_spi_read_reg_8(struct device *dev,
 		u8 reg_address,
 		u8 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7758_state *st = iio_priv(indio_dev);
 	int ret;
@@ -128,10 +121,7 @@ int ade7758_spi_read_reg_8(struct device *dev,
 	st->tx[0] = ADE7758_READ_REG(reg_address);
 	st->tx[1] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
 				reg_address);
@@ -148,7 +138,6 @@ static int ade7758_spi_read_reg_16(struct device *dev,
 		u8 reg_address,
 		u16 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7758_state *st = iio_priv(indio_dev);
 	int ret;
@@ -173,10 +162,7 @@ static int ade7758_spi_read_reg_16(struct device *dev,
 	st->tx[1] = 0;
 	st->tx[2] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
 				reg_address);
@@ -194,7 +180,6 @@ static int ade7758_spi_read_reg_24(struct device *dev,
 		u8 reg_address,
 		u32 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7758_state *st = iio_priv(indio_dev);
 	int ret;
@@ -219,10 +204,7 @@ static int ade7758_spi_read_reg_24(struct device *dev,
 	st->tx[2] = 0;
 	st->tx[3] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
 				reg_address);
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index 10b911b..17dc373 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -103,7 +103,6 @@ static int ade7759_spi_read_reg_40(struct device *dev,
 		u8 reg_address,
 		u64 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7759_state *st = iio_priv(indio_dev);
 	int ret;
@@ -120,9 +119,7 @@ static int ade7759_spi_read_reg_40(struct device *dev,
 	st->tx[0] = ADE7759_READ_REG(reg_address);
 	memset(&st->tx[1], 0 , 5);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(xfers, &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem when reading 40 bit register 0x%02X",
 				reg_address);
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index f0984fa..a802cf2 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -20,7 +20,6 @@ static int ade7854_spi_write_reg_8(struct device *dev,
 		u8 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfer = {
@@ -35,9 +34,7 @@ static int ade7854_spi_write_reg_8(struct device *dev,
 	st->tx[2] = reg_address & 0xFF;
 	st->tx[3] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, &xfer, 1);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -48,7 +45,6 @@ static int ade7854_spi_write_reg_16(struct device *dev,
 		u16 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfer = {
@@ -64,9 +60,7 @@ static int ade7854_spi_write_reg_16(struct device *dev,
 	st->tx[3] = (value >> 8) & 0xFF;
 	st->tx[4] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, &xfer, 1);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -77,7 +71,6 @@ static int ade7854_spi_write_reg_24(struct device *dev,
 		u32 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfer = {
@@ -94,9 +87,7 @@ static int ade7854_spi_write_reg_24(struct device *dev,
 	st->tx[4] = (value >> 8) & 0xFF;
 	st->tx[5] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, &xfer, 1);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -107,7 +98,6 @@ static int ade7854_spi_write_reg_32(struct device *dev,
 		u32 value)
 {
 	int ret;
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfer = {
@@ -125,9 +115,7 @@ static int ade7854_spi_write_reg_32(struct device *dev,
 	st->tx[5] = (value >> 8) & 0xFF;
 	st->tx[6] = value & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, &xfer, 1);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -137,7 +125,6 @@ static int ade7854_spi_read_reg_8(struct device *dev,
 		u16 reg_address,
 		u8 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	int ret;
@@ -159,10 +146,7 @@ static int ade7854_spi_read_reg_8(struct device *dev,
 	st->tx[1] = (reg_address >> 8) & 0xFF;
 	st->tx[2] = reg_address & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->spi->dev, "problem when reading 8 bit register 0x%02X",
 				reg_address);
@@ -179,7 +163,6 @@ static int ade7854_spi_read_reg_16(struct device *dev,
 		u16 reg_address,
 		u16 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	int ret;
@@ -200,10 +183,7 @@ static int ade7854_spi_read_reg_16(struct device *dev,
 	st->tx[1] = (reg_address >> 8) & 0xFF;
 	st->tx[2] = reg_address & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->spi->dev, "problem when reading 16 bit register 0x%02X",
 				reg_address);
@@ -220,7 +200,6 @@ static int ade7854_spi_read_reg_24(struct device *dev,
 		u16 reg_address,
 		u32 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	int ret;
@@ -242,10 +221,7 @@ static int ade7854_spi_read_reg_24(struct device *dev,
 	st->tx[1] = (reg_address >> 8) & 0xFF;
 	st->tx[2] = reg_address & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->spi->dev, "problem when reading 24 bit register 0x%02X",
 				reg_address);
@@ -262,7 +238,6 @@ static int ade7854_spi_read_reg_32(struct device *dev,
 		u16 reg_address,
 		u32 *val)
 {
-	struct spi_message msg;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
 	int ret;
@@ -284,10 +259,7 @@ static int ade7854_spi_read_reg_32(struct device *dev,
 	st->tx[1] = (reg_address >> 8) & 0xFF;
 	st->tx[2] = reg_address & 0xFF;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->spi->dev, "problem when reading 32 bit register 0x%02X",
 				reg_address);
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index ed07a34..53110b6 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -130,15 +130,12 @@ static int ad2s1210_config_read(struct ad2s1210_state *st,
 		.rx_buf = st->rx,
 		.tx_buf = st->tx,
 	};
-	struct spi_message msg;
 	int ret = 0;
 
 	ad2s1210_set_mode(MOD_CONFIG, st);
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
 	st->tx[0] = address | AD2S1210_MSB_IS_HIGH;
 	st->tx[1] = AD2S1210_REG_FAULT;
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret < 0)
 		return ret;
 	st->old_data = true;