1 files changed, 49 insertions, 22 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 3aaeb0841914..0e342793ff14 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -588,11 +588,11 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
 	mci_writel(host, CTYPE, (slot->ctype << slot->id));
 }
 
-static void dw_mci_start_request(struct dw_mci *host,
-				 struct dw_mci_slot *slot)
+static void __dw_mci_start_request(struct dw_mci *host,
+				   struct dw_mci_slot *slot,
+				   struct mmc_command *cmd)
 {
 	struct mmc_request *mrq;
-	struct mmc_command *cmd;
 	struct mmc_data	*data;
 	u32 cmdflags;
 
@@ -610,14 +610,13 @@ static void dw_mci_start_request(struct dw_mci *host,
 	host->completed_events = 0;
 	host->data_status = 0;
 
-	data = mrq->data;
+	data = cmd->data;
 	if (data) {
 		dw_mci_set_timeout(host);
 		mci_writel(host, BYTCNT, data->blksz*data->blocks);
 		mci_writel(host, BLKSIZ, data->blksz);
 	}
 
-	cmd = mrq->cmd;
 	cmdflags = dw_mci_prepare_command(slot->mmc, cmd);
 
 	/* this is the first command, send the initialization clock */
@@ -635,6 +634,16 @@ static void dw_mci_start_request(struct dw_mci *host,
 		host->stop_cmdr = dw_mci_prepare_command(slot->mmc, mrq->stop);
 }
 
+static void dw_mci_start_request(struct dw_mci *host,
+				 struct dw_mci_slot *slot)
+{
+	struct mmc_request *mrq = slot->mrq;
+	struct mmc_command *cmd;
+
+	cmd = mrq->sbc ? mrq->sbc : mrq->cmd;
+	__dw_mci_start_request(host, slot, cmd);
+}
+
 /* must be called with host->lock held */
 static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot,
 				 struct mmc_request *mrq)
@@ -698,12 +707,15 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		break;
 	}
 
+	regs = mci_readl(slot->host, UHS_REG);
+
 	/* DDR mode set */
-	if (ios->timing == MMC_TIMING_UHS_DDR50) {
-		regs = mci_readl(slot->host, UHS_REG);
+	if (ios->timing == MMC_TIMING_UHS_DDR50)
 		regs |= (0x1 << slot->id) << 16;
-		mci_writel(slot->host, UHS_REG, regs);
-	}
+	else
+		regs &= ~(0x1 << slot->id) << 16;
+
+	mci_writel(slot->host, UHS_REG, regs);
 
 	if (ios->clock) {
 		/*
@@ -889,7 +901,14 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			cmd = host->cmd;
 			host->cmd = NULL;
 			set_bit(EVENT_CMD_COMPLETE, &host->completed_events);
-			dw_mci_command_complete(host, host->mrq->cmd);
+			dw_mci_command_complete(host, cmd);
+			if (cmd == host->mrq->sbc && !cmd->error) {
+				prev_state = state = STATE_SENDING_CMD;
+				__dw_mci_start_request(host, host->cur_slot,
+						       host->mrq->cmd);
+				goto unlock;
+			}
+
 			if (!host->mrq->data || cmd->error) {
 				dw_mci_request_end(host, host->mrq);
 				goto unlock;
@@ -967,6 +986,12 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				goto unlock;
 			}
 
+			if (host->mrq->sbc && !data->error) {
+				data->stop->error = 0;
+				dw_mci_request_end(host, host->mrq);
+				goto unlock;
+			}
+
 			prev_state = state = STATE_SENDING_STOP;
 			if (!data->error)
 				send_stop_cmd(host, data);
@@ -1678,8 +1703,9 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 
 	if (host->pdata->caps)
 		mmc->caps = host->pdata->caps;
-	else
-		mmc->caps = 0;
+
+	if (host->pdata->caps2)
+		mmc->caps2 = host->pdata->caps2;
 
 	if (host->pdata->get_bus_wd)
 		if (host->pdata->get_bus_wd(slot->id) >= 4)
@@ -1923,7 +1949,7 @@ static int dw_mci_probe(struct platform_device *pdev)
 		 * should put it in the platform data.
 		 */
 		fifo_size = mci_readl(host, FIFOTH);
-		fifo_size = 1 + ((fifo_size >> 16) & 0x7ff);
+		fifo_size = 1 + ((fifo_size >> 16) & 0xfff);
 	} else {
 		fifo_size = host->pdata->fifo_depth;
 	}
@@ -2062,14 +2088,14 @@ static int __exit dw_mci_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 /*
  * TODO: we should probably disable the clock to the card in the suspend path.
  */
-static int dw_mci_suspend(struct platform_device *pdev, pm_message_t mesg)
+static int dw_mci_suspend(struct device *dev)
 {
 	int i, ret;
-	struct dw_mci *host = platform_get_drvdata(pdev);
+	struct dw_mci *host = dev_get_drvdata(dev);
 
 	for (i = 0; i < host->num_slots; i++) {
 		struct dw_mci_slot *slot = host->slot[i];
@@ -2092,10 +2118,10 @@ static int dw_mci_suspend(struct platform_device *pdev, pm_message_t mesg)
 	return 0;
 }
 
-static int dw_mci_resume(struct platform_device *pdev)
+static int dw_mci_resume(struct device *dev)
 {
 	int i, ret;
-	struct dw_mci *host = platform_get_drvdata(pdev);
+	struct dw_mci *host = dev_get_drvdata(dev);
 
 	if (host->vmmc)
 		regulator_enable(host->vmmc);
@@ -2103,7 +2129,7 @@ static int dw_mci_resume(struct platform_device *pdev)
 	if (host->dma_ops->init)
 		host->dma_ops->init(host);
 
-	if (!mci_wait_reset(&pdev->dev, host)) {
+	if (!mci_wait_reset(dev, host)) {
 		ret = -ENODEV;
 		return ret;
 	}
@@ -2131,14 +2157,15 @@ static int dw_mci_resume(struct platform_device *pdev)
 #else
 #define dw_mci_suspend	NULL
 #define dw_mci_resume	NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(dw_mci_pmops, dw_mci_suspend, dw_mci_resume);
 
 static struct platform_driver dw_mci_driver = {
 	.remove		= __exit_p(dw_mci_remove),
-	.suspend	= dw_mci_suspend,
-	.resume		= dw_mci_resume,
 	.driver		= {
 		.name		= "dw_mmc",
+		.pm		= &dw_mci_pmops,
 	},
 };