[PATCH 1/8] iio:ad5449: Use spi_sync_transfer()

[PATCH 1/8] iio:ad5449: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/iio/dac/ad5449.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index fff7d07..82e208f 100644
--- 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;
 
-- 
1.8.0

[PATCH 2/8] iio:adis16080: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/iio/gyro/adis16080.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
index e9ec022..add5098 100644
--- a/drivers/iio/gyro/adis16080.c
+++ b/drivers/iio/gyro/adis16080.c
@@ -51,7 +51,6 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
 		u16 addr, int *val)
 {
 	struct adis16080_state *st = iio_priv(indio_dev);
-	struct spi_message m;
 	int ret;
 	struct spi_transfer	t[] = {
 		{
@@ -66,11 +65,7 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
 
 	st->buf = cpu_to_be16(addr | ADIS16080_DIN_WRITE);
 
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-
-	ret = spi_sync(st->us, &m);
+	ret = spi_sync_transfer(st->us, t, ARRAY_SIZE(t));
 	if (ret == 0)
 		*val = sign_extend32(be16_to_cpu(st->buf), 11);
 
-- 
1.8.0

[PATCH 3/8] iio:adxrs450: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/iio/gyro/adxrs450.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index c1f40ef..1e546ba 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -90,7 +90,6 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
 				    u8 reg_address,
 				    u16 *val)
 {
-	struct spi_message msg;
 	struct adxrs450_state *st = iio_priv(indio_dev);
 	u32 tx;
 	int ret;
@@ -114,10 +113,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
 		tx |= ADXRS450_P;
 
 	st->tx = cpu_to_be32(tx);
-	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 while reading 16 bit register 0x%02x\n",
 				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)
 {
-	struct spi_message msg;
 	struct adxrs450_state *st = iio_priv(indio_dev);
 	int ret;
 	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);
 	st->tx = cpu_to_be32(ADXRS450_SENSOR_DATA);
 
-	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 while reading sensor data\n");
 		goto error_ret;
-- 
1.8.0

[PATCH 4/8] iio:adis16130: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/iio/gyro/adis16130.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
index 9155cf6..445c2ae 100644
--- a/drivers/iio/gyro/adis16130.c
+++ b/drivers/iio/gyro/adis16130.c
@@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
 {
 	int ret;
 	struct adis16130_state *st = iio_priv(indio_dev);
-	struct spi_message msg;
 	struct spi_transfer xfer = {
 		.tx_buf = st->buf,
 		.rx_buf = st->buf,
@@ -59,10 +58,7 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
 	st->buf[0] = ADIS16130_CON_RD | reg_addr;
 	st->buf[1] = st->buf[2] = st->buf[3] = 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);
 	if (ret == 0)
 		*val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
 	mutex_unlock(&st->buf_lock);
-- 
1.8.0

[PATCH 5/8] staging:iio:adis16220: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/staging/iio/accel/adis16220_core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index 5c28961..4c9364b 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -102,7 +102,6 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 					int addr)
 {
 	struct adis16220_state *st = iio_priv(indio_dev);
-	struct spi_message msg;
 	struct spi_transfer xfers[] = {
 		{
 			.tx_buf = st->tx,
@@ -147,10 +146,7 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 	}
 	xfers[1].len = count;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->adis.spi, &msg);
+	ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 
 		mutex_unlock(&st->buf_lock);
-- 
1.8.0

[PATCH 6/8] staging:iio:ad9852: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/staging/iio/frequency/ad9852.c | 45 +++++++++-------------------------
 1 file changed, 11 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
index 4be2cf8..11e4367 100644
--- a/drivers/staging/iio/frequency/ad9852.c
+++ b/drivers/staging/iio/frequency/ad9852.c
@@ -67,7 +67,6 @@ static ssize_t ad9852_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9852_config *config = (struct ad9852_config *)buf;
@@ -78,99 +77,77 @@ static ssize_t ad9852_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->phajst0[0];
 	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;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->phajst1[0];
 
-	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;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->fretun1[0];
 
-	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;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->fretun2[0];
 
-	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;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->dltafre[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->updtclk[0];
 
-	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;
 
 	xfer.len = 4;
 	xfer.tx_buf = &config->ramprat[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->control[0];
 
-	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;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->outpskm[0];
 
-	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;
 
 	xfer.len = 2;
 	xfer.tx_buf = &config->outpskr[0];
 
-	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;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->daccntl[0];
 
-	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:
-- 
1.8.0

[PATCH 7/8] staging:iio:ad9910: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/staging/iio/frequency/ad9910.c | 82 +++++++++-------------------------
 1 file changed, 20 insertions(+), 62 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9910.c b/drivers/staging/iio/frequency/ad9910.c
index a7d528e..755e048 100644
--- a/drivers/staging/iio/frequency/ad9910.c
+++ b/drivers/staging/iio/frequency/ad9910.c
@@ -119,7 +119,6 @@ static ssize_t ad9910_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9910_config *config = (struct ad9910_config *)buf;
@@ -130,152 +129,118 @@ static ssize_t ad9910_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->auxdac[0];
 	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ioupd[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ftw[0];
 
-	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;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->pow[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->asf[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->multc[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->dig_rampl[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->dig_ramps[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->dig_rampr[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep0[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep1[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep2[0];
 
-	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;
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep3[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep4[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep5[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep6[0];
 
-	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;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep7[0];
 
-	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:
@@ -288,7 +253,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9910_set_parameter, 0);
 
 static void ad9910_init(struct ad9910_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	u8 cfr[5];
@@ -304,9 +268,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	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;
 
@@ -319,9 +281,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	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;
 
@@ -334,9 +294,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	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;
 
-- 
1.8.0

[PATCH 8/8] staging:iio:ad9951: Use spi_sync_transfer()

[Lars-Peter Clausen]

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>
---
 drivers/staging/iio/frequency/ad9951.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9951.c b/drivers/staging/iio/frequency/ad9951.c
index 0094c2f..5e8990a 100644
--- a/drivers/staging/iio/frequency/ad9951.c
+++ b/drivers/staging/iio/frequency/ad9951.c
@@ -60,7 +60,6 @@ static ssize_t ad9951_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9951_config *config = (struct ad9951_config *)buf;
@@ -71,36 +70,28 @@ static ssize_t ad9951_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->asf[0];
 	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;
 
 	xfer.len = 2;
 	xfer.tx_buf = &config->arr[0];
 
-	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;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ftw0[0];
 
-	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;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->ftw1[0];
 
-	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:
@@ -113,7 +104,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9951_set_parameter, 0);
 
 static void ad9951_init(struct ad9951_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	u8 cfr[5];
@@ -129,9 +119,7 @@ static void ad9951_init(struct ad9951_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	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;
 
@@ -143,9 +131,7 @@ static void ad9951_init(struct ad9951_state *st)
 	xfer.len = 4;
 	xfer.tx_buf = &cfr;
 
-	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;
 
-- 
1.8.0

Re: [PATCH 1/8] iio:ad5449: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied to the togreg branch of iio.git

Thanks,
> ---
>  drivers/iio/dac/ad5449.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
> index fff7d07..82e208f 100644
> --- 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;
>  
> 

Re: [PATCH 2/8] iio:adis16080: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied to the togreg branch of iio.git

Thanks,

> ---
>  drivers/iio/gyro/adis16080.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
> index e9ec022..add5098 100644
> --- a/drivers/iio/gyro/adis16080.c
> +++ b/drivers/iio/gyro/adis16080.c
> @@ -51,7 +51,6 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
>  		u16 addr, int *val)
>  {
>  	struct adis16080_state *st = iio_priv(indio_dev);
> -	struct spi_message m;
>  	int ret;
>  	struct spi_transfer	t[] = {
>  		{
> @@ -66,11 +65,7 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
>  
>  	st->buf = cpu_to_be16(addr | ADIS16080_DIN_WRITE);
>  
> -	spi_message_init(&m);
> -	spi_message_add_tail(&t[0], &m);
> -	spi_message_add_tail(&t[1], &m);
> -
> -	ret = spi_sync(st->us, &m);
> +	ret = spi_sync_transfer(st->us, t, ARRAY_SIZE(t));
>  	if (ret == 0)
>  		*val = sign_extend32(be16_to_cpu(st->buf), 11);
>  
> 

Re: [PATCH 3/8] iio:adxrs450: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied to the togreg branch of iio.git

Thanks,
> ---
>  drivers/iio/gyro/adxrs450.c | 12 ++----------
>  1 file changed, 2 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
> index c1f40ef..1e546ba 100644
> --- a/drivers/iio/gyro/adxrs450.c
> +++ b/drivers/iio/gyro/adxrs450.c
> @@ -90,7 +90,6 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
>  				    u8 reg_address,
>  				    u16 *val)
>  {
> -	struct spi_message msg;
>  	struct adxrs450_state *st = iio_priv(indio_dev);
>  	u32 tx;
>  	int ret;
> @@ -114,10 +113,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
>  		tx |= ADXRS450_P;
>  
>  	st->tx = cpu_to_be32(tx);
> -	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 while reading 16 bit register 0x%02x\n",
>  				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)
>  {
> -	struct spi_message msg;
>  	struct adxrs450_state *st = iio_priv(indio_dev);
>  	int ret;
>  	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);
>  	st->tx = cpu_to_be32(ADXRS450_SENSOR_DATA);
>  
> -	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 while reading sensor data\n");
>  		goto error_ret;
> 

Re: [PATCH 4/8] iio:adis16130: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied to the togreg branch of iio.git

thanks,
> ---
>  drivers/iio/gyro/adis16130.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
> index 9155cf6..445c2ae 100644
> --- a/drivers/iio/gyro/adis16130.c
> +++ b/drivers/iio/gyro/adis16130.c
> @@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
>  {
>  	int ret;
>  	struct adis16130_state *st = iio_priv(indio_dev);
> -	struct spi_message msg;
>  	struct spi_transfer xfer = {
>  		.tx_buf = st->buf,
>  		.rx_buf = st->buf,
> @@ -59,10 +58,7 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
>  	st->buf[0] = ADIS16130_CON_RD | reg_addr;
>  	st->buf[1] = st->buf[2] = st->buf[3] = 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);
>  	if (ret == 0)
>  		*val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
>  	mutex_unlock(&st->buf_lock);
> 

Re: [PATCH 4/8] iio:adis16130: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied to the togreg branch of iio.git

Thanks,
> ---
>  drivers/iio/gyro/adis16130.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
> index 9155cf6..445c2ae 100644
> --- a/drivers/iio/gyro/adis16130.c
> +++ b/drivers/iio/gyro/adis16130.c
> @@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
>  {
>  	int ret;
>  	struct adis16130_state *st = iio_priv(indio_dev);
> -	struct spi_message msg;
>  	struct spi_transfer xfer = {
>  		.tx_buf = st->buf,
>  		.rx_buf = st->buf,
> @@ -59,10 +58,7 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
>  	st->buf[0] = ADIS16130_CON_RD | reg_addr;
>  	st->buf[1] = st->buf[2] = st->buf[3] = 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);
>  	if (ret == 0)
>  		*val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
>  	mutex_unlock(&st->buf_lock);
> 

Re: [PATCH 5/8] staging:iio:adis16220: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied
> ---
>  drivers/staging/iio/accel/adis16220_core.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
> index 5c28961..4c9364b 100644
> --- a/drivers/staging/iio/accel/adis16220_core.c
> +++ b/drivers/staging/iio/accel/adis16220_core.c
> @@ -102,7 +102,6 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
>  					int addr)
>  {
>  	struct adis16220_state *st = iio_priv(indio_dev);
> -	struct spi_message msg;
>  	struct spi_transfer xfers[] = {
>  		{
>  			.tx_buf = st->tx,
> @@ -147,10 +146,7 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
>  	}
>  	xfers[1].len = count;
>  
> -	spi_message_init(&msg);
> -	spi_message_add_tail(&xfers[0], &msg);
> -	spi_message_add_tail(&xfers[1], &msg);
> -	ret = spi_sync(st->adis.spi, &msg);
> +	ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
>  	if (ret) {
>  
>  		mutex_unlock(&st->buf_lock);
> 

Re: [PATCH 6/8] staging:iio:ad9852: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
applied.
> ---
>  drivers/staging/iio/frequency/ad9852.c | 45 +++++++++-------------------------
>  1 file changed, 11 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
> index 4be2cf8..11e4367 100644
> --- a/drivers/staging/iio/frequency/ad9852.c
> +++ b/drivers/staging/iio/frequency/ad9852.c
> @@ -67,7 +67,6 @@ static ssize_t ad9852_set_parameter(struct device *dev,
>  					const char *buf,
>  					size_t len)
>  {
> -	struct spi_message msg;
>  	struct spi_transfer xfer;
>  	int ret;
>  	struct ad9852_config *config = (struct ad9852_config *)buf;
> @@ -78,99 +77,77 @@ static ssize_t ad9852_set_parameter(struct device *dev,
>  	xfer.tx_buf = &config->phajst0[0];
>  	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;
>  
>  	xfer.len = 3;
>  	xfer.tx_buf = &config->phajst1[0];
>  
> -	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;
>  
>  	xfer.len = 6;
>  	xfer.tx_buf = &config->fretun1[0];
>  
> -	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;
>  
>  	xfer.len = 6;
>  	xfer.tx_buf = &config->fretun2[0];
>  
> -	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;
>  
>  	xfer.len = 6;
>  	xfer.tx_buf = &config->dltafre[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->updtclk[0];
>  
> -	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;
>  
>  	xfer.len = 4;
>  	xfer.tx_buf = &config->ramprat[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->control[0];
>  
> -	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;
>  
>  	xfer.len = 3;
>  	xfer.tx_buf = &config->outpskm[0];
>  
> -	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;
>  
>  	xfer.len = 2;
>  	xfer.tx_buf = &config->outpskr[0];
>  
> -	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;
>  
>  	xfer.len = 3;
>  	xfer.tx_buf = &config->daccntl[0];
>  
> -	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:
> 

Re: [PATCH 7/8] staging:iio:ad9910: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied.
> ---
>  drivers/staging/iio/frequency/ad9910.c | 82 +++++++++-------------------------
>  1 file changed, 20 insertions(+), 62 deletions(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9910.c b/drivers/staging/iio/frequency/ad9910.c
> index a7d528e..755e048 100644
> --- a/drivers/staging/iio/frequency/ad9910.c
> +++ b/drivers/staging/iio/frequency/ad9910.c
> @@ -119,7 +119,6 @@ static ssize_t ad9910_set_parameter(struct device *dev,
>  					const char *buf,
>  					size_t len)
>  {
> -	struct spi_message msg;
>  	struct spi_transfer xfer;
>  	int ret;
>  	struct ad9910_config *config = (struct ad9910_config *)buf;
> @@ -130,152 +129,118 @@ static ssize_t ad9910_set_parameter(struct device *dev,
>  	xfer.tx_buf = &config->auxdac[0];
>  	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->ioupd[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->ftw[0];
>  
> -	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;
>  
>  	xfer.len = 3;
>  	xfer.tx_buf = &config->pow[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->asf[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->multc[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->dig_rampl[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->dig_ramps[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->dig_rampr[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep0[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep1[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep2[0];
>  
> -	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;
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep3[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep4[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep5[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep6[0];
>  
> -	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;
>  
>  	xfer.len = 9;
>  	xfer.tx_buf = &config->sin_tonep7[0];
>  
> -	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:
> @@ -288,7 +253,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9910_set_parameter, 0);
>  
>  static void ad9910_init(struct ad9910_state *st)
>  {
> -	struct spi_message msg;
>  	struct spi_transfer xfer;
>  	int ret;
>  	u8 cfr[5];
> @@ -304,9 +268,7 @@ static void ad9910_init(struct ad9910_state *st)
>  	xfer.len = 5;
>  	xfer.tx_buf = &cfr;
>  
> -	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;
>  
> @@ -319,9 +281,7 @@ static void ad9910_init(struct ad9910_state *st)
>  	xfer.len = 5;
>  	xfer.tx_buf = &cfr;
>  
> -	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;
>  
> @@ -334,9 +294,7 @@ static void ad9910_init(struct ad9910_state *st)
>  	xfer.len = 5;
>  	xfer.tx_buf = &cfr;
>  
> -	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;
>  
> 

Re: [PATCH 8/8] staging:iio:ad9951: Use spi_sync_transfer()

[Jonathan Cameron]

On 10/05/13 08:45, Lars-Peter Clausen wrote:
> 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>
Applied. Thanks,
> ---
>  drivers/staging/iio/frequency/ad9951.c | 26 ++++++--------------------
>  1 file changed, 6 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9951.c b/drivers/staging/iio/frequency/ad9951.c
> index 0094c2f..5e8990a 100644
> --- a/drivers/staging/iio/frequency/ad9951.c
> +++ b/drivers/staging/iio/frequency/ad9951.c
> @@ -60,7 +60,6 @@ static ssize_t ad9951_set_parameter(struct device *dev,
>  					const char *buf,
>  					size_t len)
>  {
> -	struct spi_message msg;
>  	struct spi_transfer xfer;
>  	int ret;
>  	struct ad9951_config *config = (struct ad9951_config *)buf;
> @@ -71,36 +70,28 @@ static ssize_t ad9951_set_parameter(struct device *dev,
>  	xfer.tx_buf = &config->asf[0];
>  	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;
>  
>  	xfer.len = 2;
>  	xfer.tx_buf = &config->arr[0];
>  
> -	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;
>  
>  	xfer.len = 5;
>  	xfer.tx_buf = &config->ftw0[0];
>  
> -	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;
>  
>  	xfer.len = 3;
>  	xfer.tx_buf = &config->ftw1[0];
>  
> -	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:
> @@ -113,7 +104,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9951_set_parameter, 0);
>  
>  static void ad9951_init(struct ad9951_state *st)
>  {
> -	struct spi_message msg;
>  	struct spi_transfer xfer;
>  	int ret;
>  	u8 cfr[5];
> @@ -129,9 +119,7 @@ static void ad9951_init(struct ad9951_state *st)
>  	xfer.len = 5;
>  	xfer.tx_buf = &cfr;
>  
> -	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;
>  
> @@ -143,9 +131,7 @@ static void ad9951_init(struct ad9951_state *st)
>  	xfer.len = 4;
>  	xfer.tx_buf = &cfr;
>  
> -	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;
>  
>