---

yaml
---
r: 18414
b: refs/heads/master
c: 8275c64
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2f9f762879015d738a5ec2ac8a16be94b3a4a06d
+refs/heads/master: 8275c642ccdce09a2146d0a9eb022e3698ee927e

trunk/drivers/input/touchscreen/ads7846.c

@@ -155,10 +155,13 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 	struct ser_req		*req = kzalloc(sizeof *req, SLAB_KERNEL);
 	int			status;
 	int			sample;
+	int 			i;
 
 	if (!req)
 		return -ENOMEM;
 
+	INIT_LIST_HEAD(&req->msg.transfers);
+
 	/* activate reference, so it has time to settle; */
 	req->xfer[0].tx_buf = &ref_on;
 	req->xfer[0].len = 1;
@@ -192,8 +195,8 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 	/* group all the transfers together, so we can't interfere with
 	 * reading touchscreen state; disable penirq while sampling
 	 */
-	req->msg.transfers = req->xfer;
-	req->msg.n_transfer = 6;
+	for (i = 0; i < 6; i++)
+		spi_message_add_tail(&req->xfer[i], &req->msg);
 
 	disable_irq(spi->irq);
 	status = spi_sync(spi, &req->msg);
@@ -398,6 +401,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 	struct ads7846			*ts;
 	struct ads7846_platform_data	*pdata = spi->dev.platform_data;
 	struct spi_transfer		*x;
+	int				i;
 
 	if (!spi->irq) {
 		dev_dbg(&spi->dev, "no IRQ?\n");
@@ -500,8 +504,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 
 	CS_CHANGE(x[-1]);
 
-	ts->msg.transfers = ts->xfer;
-	ts->msg.n_transfer = x - ts->xfer;
+	for (i = 0; i < x - ts->xfer; i++)
+		spi_message_add_tail(&ts->xfer[i], &ts->msg);
 	ts->msg.complete = ads7846_rx;
 	ts->msg.context = ts;
 

trunk/drivers/mtd/devices/m25p80.c

@@ -245,6 +245,21 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 	if (from + len > flash->mtd.size)
 		return -EINVAL;
 
+	spi_message_init(&m);
+	memset(t, 0, (sizeof t));
+
+	t[0].tx_buf = flash->command;
+	t[0].len = sizeof(flash->command);
+	spi_message_add_tail(&t[0], &m);
+
+	t[1].rx_buf = buf;
+	t[1].len = len;
+	spi_message_add_tail(&t[1], &m);
+
+	/* Byte count starts at zero. */
+	if (retlen)
+		*retlen = 0;
+
 	down(&flash->lock);
 
 	/* Wait till previous write/erase is done. */
@@ -254,8 +269,6 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 		return 1;
 	}
 
-	memset(t, 0, (sizeof t));
-
 	/* NOTE:  OPCODE_FAST_READ (if available) is faster... */
 
 	/* Set up the write data buffer. */
@@ -264,19 +277,6 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 	flash->command[2] = from >> 8;
 	flash->command[3] = from;
 
-	/* Byte count starts at zero. */
-	if (retlen)
-		*retlen = 0;
-
-	t[0].tx_buf = flash->command;
-	t[0].len = sizeof(flash->command);
-
-	t[1].rx_buf = buf;
-	t[1].len = len;
-
-	m.transfers = t;
-	m.n_transfer = 2;
-
 	spi_sync(flash->spi, &m);
 
 	*retlen = m.actual_length - sizeof(flash->command);
@@ -313,6 +313,16 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 	if (to + len > flash->mtd.size)
 		return -EINVAL;
 
+	spi_message_init(&m);
+	memset(t, 0, (sizeof t));
+
+	t[0].tx_buf = flash->command;
+	t[0].len = sizeof(flash->command);
+	spi_message_add_tail(&t[0], &m);
+
+	t[1].tx_buf = buf;
+	spi_message_add_tail(&t[1], &m);
+
   	down(&flash->lock);
 
 	/* Wait until finished previous write command. */
@@ -321,26 +331,17 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 	write_enable(flash);
 
-	memset(t, 0, (sizeof t));
-
 	/* Set up the opcode in the write buffer. */
 	flash->command[0] = OPCODE_PP;
 	flash->command[1] = to >> 16;
 	flash->command[2] = to >> 8;
 	flash->command[3] = to;
 
-	t[0].tx_buf = flash->command;
-	t[0].len = sizeof(flash->command);
-
-	m.transfers = t;
-	m.n_transfer = 2;
-
 	/* what page do we start with? */
 	page_offset = to % FLASH_PAGESIZE;
 
 	/* do all the bytes fit onto one page? */
 	if (page_offset + len <= FLASH_PAGESIZE) {
-		t[1].tx_buf = buf;
 		t[1].len = len;
 
 		spi_sync(flash->spi, &m);
@@ -352,7 +353,6 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 		/* the size of data remaining on the first page */
 		page_size = FLASH_PAGESIZE - page_offset;
 
-		t[1].tx_buf = buf;
 		t[1].len = page_size;
 		spi_sync(flash->spi, &m);
 

trunk/drivers/mtd/devices/mtd_dataflash.c

@@ -147,7 +147,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
 	struct dataflash	*priv = (struct dataflash *)mtd->priv;
 	struct spi_device	*spi = priv->spi;
-	struct spi_transfer	x[1] = { { .tx_dma = 0, }, };
+	struct spi_transfer	x = { .tx_dma = 0, };
 	struct spi_message	msg;
 	unsigned		blocksize = priv->page_size << 3;
 	u8			*command;
@@ -162,10 +162,11 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 			|| (instr->addr % priv->page_size) != 0)
 		return -EINVAL;
 
-	x[0].tx_buf = command = priv->command;
-	x[0].len = 4;
-	msg.transfers = x;
-	msg.n_transfer = 1;
+	spi_message_init(&msg);
+
+	x.tx_buf = command = priv->command;
+	x.len = 4;
+	spi_message_add_tail(&x, &msg);
 
 	down(&priv->lock);
 	while (instr->len > 0) {
@@ -256,12 +257,15 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 	DEBUG(MTD_DEBUG_LEVEL3, "READ: (%x) %x %x %x\n",
 		command[0], command[1], command[2], command[3]);
 
+	spi_message_init(&msg);
+
 	x[0].tx_buf = command;
 	x[0].len = 8;
+	spi_message_add_tail(&x[0], &msg);
+
 	x[1].rx_buf = buf;
 	x[1].len = len;
-	msg.transfers = x;
-	msg.n_transfer = 2;
+	spi_message_add_tail(&x[1], &msg);
 
 	down(&priv->lock);
 
@@ -320,9 +324,11 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 	if ((to + len) > mtd->size)
 		return -EINVAL;
 
+	spi_message_init(&msg);
+
 	x[0].tx_buf = command = priv->command;
 	x[0].len = 4;
-	msg.transfers = x;
+	spi_message_add_tail(&x[0], &msg);
 
 	pageaddr = ((unsigned)to / priv->page_size);
 	offset = ((unsigned)to % priv->page_size);
@@ -364,7 +370,6 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 			DEBUG(MTD_DEBUG_LEVEL3, "TRANSFER: (%x) %x %x %x\n",
 				command[0], command[1], command[2], command[3]);
 
-			msg.n_transfer = 1;
 			status = spi_sync(spi, &msg);
 			if (status < 0)
 				DEBUG(MTD_DEBUG_LEVEL1, "%s: xfer %u -> %d \n",
@@ -385,14 +390,16 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 		x[1].tx_buf = writebuf;
 		x[1].len = writelen;
-		msg.n_transfer = 2;
+		spi_message_add_tail(x + 1, &msg);
 		status = spi_sync(spi, &msg);
+		spi_transfer_del(x + 1);
 		if (status < 0)
 			DEBUG(MTD_DEBUG_LEVEL1, "%s: pgm %u/%u -> %d \n",
 				spi->dev.bus_id, addr, writelen, status);
 
 		(void) dataflash_waitready(priv->spi);
 
+
 #ifdef	CONFIG_DATAFLASH_WRITE_VERIFY
 
 		/* (3) Compare to Buffer1 */
@@ -405,7 +412,6 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 		DEBUG(MTD_DEBUG_LEVEL3, "COMPARE: (%x) %x %x %x\n",
 			command[0], command[1], command[2], command[3]);
 
-		msg.n_transfer = 1;
 		status = spi_sync(spi, &msg);
 		if (status < 0)
 			DEBUG(MTD_DEBUG_LEVEL1, "%s: compare %u -> %d \n",

trunk/drivers/spi/spi.c

@@ -557,6 +557,17 @@ int spi_write_then_read(struct spi_device *spi,
 	if ((n_tx + n_rx) > SPI_BUFSIZ)
 		return -EINVAL;
 
+	spi_message_init(&message);
+	memset(x, 0, sizeof x);
+	if (n_tx) {
+		x[0].len = n_tx;
+		spi_message_add_tail(&x[0], &message);
+	}
+	if (n_rx) {
+		x[1].len = n_rx;
+		spi_message_add_tail(&x[1], &message);
+	}
+
 	/* ... unless someone else is using the pre-allocated buffer */
 	if (down_trylock(&lock)) {
 		local_buf = kmalloc(SPI_BUFSIZ, GFP_KERNEL);
@@ -565,18 +576,11 @@ int spi_write_then_read(struct spi_device *spi,
 	} else
 		local_buf = buf;
 
-	memset(x, 0, sizeof x);
-
 	memcpy(local_buf, txbuf, n_tx);
 	x[0].tx_buf = local_buf;
-	x[0].len = n_tx;
-
 	x[1].rx_buf = local_buf + n_tx;
-	x[1].len = n_rx;
 
 	/* do the i/o */
-	message.transfers = x;
-	message.n_transfer = ARRAY_SIZE(x);
 	status = spi_sync(spi, &message);
 	if (status == 0) {
 		memcpy(rxbuf, x[1].rx_buf, n_rx);