1 files changed, 45 insertions, 85 deletions

diff --git a/drivers/spi/spi-sh.c b/drivers/spi/spi-sh.c
index 45f304935332..130d7fc452fa 100644
--- a/drivers/spi/spi-sh.c
+++ b/drivers/spi/spi-sh.c
@@ -72,12 +72,9 @@
 struct spi_sh_data {
 	void __iomem *addr;
 	int irq;
-	struct spi_master *master;
-	struct list_head queue;
-	struct work_struct ws;
+	struct spi_controller *host;
 	unsigned long cr1;
 	wait_queue_head_t wait;
-	spinlock_t lock;
 	int width;
 };
 
@@ -271,47 +268,39 @@ static int spi_sh_receive(struct spi_sh_data *ss, struct spi_message *mesg,
 	return 0;
 }
 
-static void spi_sh_work(struct work_struct *work)
+static int spi_sh_transfer_one_message(struct spi_controller *ctlr,
+					struct spi_message *mesg)
 {
-	struct spi_sh_data *ss = container_of(work, struct spi_sh_data, ws);
-	struct spi_message *mesg;
+	struct spi_sh_data *ss = spi_controller_get_devdata(ctlr);
 	struct spi_transfer *t;
-	unsigned long flags;
 	int ret;
 
 	pr_debug("%s: enter\n", __func__);
 
-	spin_lock_irqsave(&ss->lock, flags);
-	while (!list_empty(&ss->queue)) {
-		mesg = list_entry(ss->queue.next, struct spi_message, queue);
-		list_del_init(&mesg->queue);
-
-		spin_unlock_irqrestore(&ss->lock, flags);
-		list_for_each_entry(t, &mesg->transfers, transfer_list) {
-			pr_debug("tx_buf = %p, rx_buf = %p\n",
-					t->tx_buf, t->rx_buf);
-			pr_debug("len = %d, delay.value = %d\n",
-					t->len, t->delay.value);
-
-			if (t->tx_buf) {
-				ret = spi_sh_send(ss, mesg, t);
-				if (ret < 0)
-					goto error;
-			}
-			if (t->rx_buf) {
-				ret = spi_sh_receive(ss, mesg, t);
-				if (ret < 0)
-					goto error;
-			}
-			mesg->actual_length += t->len;
-		}
-		spin_lock_irqsave(&ss->lock, flags);
+	spi_sh_clear_bit(ss, SPI_SH_SSA, SPI_SH_CR1);
 
-		mesg->status = 0;
-		if (mesg->complete)
-			mesg->complete(mesg->context);
+	list_for_each_entry(t, &mesg->transfers, transfer_list) {
+		pr_debug("tx_buf = %p, rx_buf = %p\n",
+			 t->tx_buf, t->rx_buf);
+		pr_debug("len = %d, delay.value = %d\n",
+			 t->len, t->delay.value);
+
+		if (t->tx_buf) {
+			ret = spi_sh_send(ss, mesg, t);
+			if (ret < 0)
+				goto error;
+		}
+		if (t->rx_buf) {
+			ret = spi_sh_receive(ss, mesg, t);
+			if (ret < 0)
+				goto error;
+		}
+		mesg->actual_length += t->len;
 	}
 
+	mesg->status = 0;
+	spi_finalize_current_message(ctlr);
+
 	clear_fifo(ss);
 	spi_sh_set_bit(ss, SPI_SH_SSD, SPI_SH_CR1);
 	udelay(100);
@@ -321,12 +310,11 @@ static void spi_sh_work(struct work_struct *work)
 
 	clear_fifo(ss);
 
-	spin_unlock_irqrestore(&ss->lock, flags);
-
-	return;
+	return 0;
 
  error:
 	mesg->status = ret;
+	spi_finalize_current_message(ctlr);
 	if (mesg->complete)
 		mesg->complete(mesg->context);
 
@@ -334,11 +322,12 @@ static void spi_sh_work(struct work_struct *work)
 			 SPI_SH_CR1);
 	clear_fifo(ss);
 
+	return ret;
 }
 
 static int spi_sh_setup(struct spi_device *spi)
 {
-	struct spi_sh_data *ss = spi_master_get_devdata(spi->master);
+	struct spi_sh_data *ss = spi_controller_get_devdata(spi->controller);
 
 	pr_debug("%s: enter\n", __func__);
 
@@ -355,32 +344,9 @@ static int spi_sh_setup(struct spi_device *spi)
 	return 0;
 }
 
-static int spi_sh_transfer(struct spi_device *spi, struct spi_message *mesg)
-{
-	struct spi_sh_data *ss = spi_master_get_devdata(spi->master);
-	unsigned long flags;
-
-	pr_debug("%s: enter\n", __func__);
-	pr_debug("\tmode = %02x\n", spi->mode);
-
-	spin_lock_irqsave(&ss->lock, flags);
-
-	mesg->actual_length = 0;
-	mesg->status = -EINPROGRESS;
-
-	spi_sh_clear_bit(ss, SPI_SH_SSA, SPI_SH_CR1);
-
-	list_add_tail(&mesg->queue, &ss->queue);
-	schedule_work(&ss->ws);
-
-	spin_unlock_irqrestore(&ss->lock, flags);
-
-	return 0;
-}
-
 static void spi_sh_cleanup(struct spi_device *spi)
 {
-	struct spi_sh_data *ss = spi_master_get_devdata(spi->master);
+	struct spi_sh_data *ss = spi_controller_get_devdata(spi->controller);
 
 	pr_debug("%s: enter\n", __func__);
 
@@ -411,21 +377,18 @@ static irqreturn_t spi_sh_irq(int irq, void *_ss)
 	return IRQ_HANDLED;
 }
 
-static int spi_sh_remove(struct platform_device *pdev)
+static void spi_sh_remove(struct platform_device *pdev)
 {
 	struct spi_sh_data *ss = platform_get_drvdata(pdev);
 
-	spi_unregister_master(ss->master);
-	flush_work(&ss->ws);
+	spi_unregister_controller(ss->host);
 	free_irq(ss->irq, ss);
-
-	return 0;
 }
 
 static int spi_sh_probe(struct platform_device *pdev)
 {
 	struct resource *res;
-	struct spi_master *master;
+	struct spi_controller *host;
 	struct spi_sh_data *ss;
 	int ret, irq;
 
@@ -440,13 +403,13 @@ static int spi_sh_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	master = devm_spi_alloc_master(&pdev->dev, sizeof(struct spi_sh_data));
-	if (master == NULL) {
-		dev_err(&pdev->dev, "spi_alloc_master error.\n");
+	host = devm_spi_alloc_host(&pdev->dev, sizeof(struct spi_sh_data));
+	if (host == NULL) {
+		dev_err(&pdev->dev, "devm_spi_alloc_host error.\n");
 		return -ENOMEM;
 	}
 
-	ss = spi_master_get_devdata(master);
+	ss = spi_controller_get_devdata(host);
 	platform_set_drvdata(pdev, ss);
 
 	switch (res->flags & IORESOURCE_MEM_TYPE_MASK) {
@@ -461,15 +424,12 @@ static int spi_sh_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 	ss->irq = irq;
-	ss->master = master;
+	ss->host = host;
 	ss->addr = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (ss->addr == NULL) {
 		dev_err(&pdev->dev, "ioremap error.\n");
 		return -ENOMEM;
 	}
-	INIT_LIST_HEAD(&ss->queue);
-	spin_lock_init(&ss->lock);
-	INIT_WORK(&ss->ws, spi_sh_work);
 	init_waitqueue_head(&ss->wait);
 
 	ret = request_irq(irq, spi_sh_irq, 0, "spi_sh", ss);
@@ -478,15 +438,15 @@ static int spi_sh_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	master->num_chipselect = 2;
-	master->bus_num = pdev->id;
-	master->setup = spi_sh_setup;
-	master->transfer = spi_sh_transfer;
-	master->cleanup = spi_sh_cleanup;
+	host->num_chipselect = 2;
+	host->bus_num = pdev->id;
+	host->setup = spi_sh_setup;
+	host->transfer_one_message = spi_sh_transfer_one_message;
+	host->cleanup = spi_sh_cleanup;
 
-	ret = spi_register_master(master);
+	ret = spi_register_controller(host);
 	if (ret < 0) {
-		printk(KERN_ERR "spi_register_master error.\n");
+		printk(KERN_ERR "spi_register_controller error.\n");
 		goto error3;
 	}