1 files changed, 115 insertions, 78 deletions

diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 153ab977a01..9405ecdaf6c 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -36,13 +36,13 @@
 #include <linux/io.h>
 #include <linux/memory.h>
 #include <linux/gfp.h>
+#include <linux/gpio.h>
 
 #include <asm/cacheflush.h>
 #include <asm/div64.h>
 #include <asm/sizes.h>
 
-#include <mach/mmc.h>
-#include <mach/msm_iomap.h>
+#include <linux/platform_data/mmc-msm_sdcc.h>
 #include <mach/dma.h>
 #include <mach/clk.h>
 
@@ -212,7 +212,8 @@ msmsdcc_dma_exec_func(struct msm_dmov_cmd *cmd)
 	msmsdcc_writel(host, host->cmd_timeout, MMCIDATATIMER);
 	msmsdcc_writel(host, (unsigned int)host->curr.xfer_size,
 		       MMCIDATALENGTH);
-	msmsdcc_writel(host, host->cmd_pio_irqmask, MMCIMASK1);
+	msmsdcc_writel(host, (msmsdcc_readl(host, MMCIMASK0) &
+			(~MCI_IRQ_PIO)) | host->cmd_pio_irqmask, MMCIMASK0);
 	msmsdcc_writel(host, host->cmd_datactrl, MMCIDATACTRL);
 
 	if (host->cmd_cmd) {
@@ -266,14 +267,6 @@ msmsdcc_dma_complete_tlet(unsigned long data)
 	dma_unmap_sg(mmc_dev(host->mmc), host->dma.sg, host->dma.num_ents,
 		     host->dma.dir);
 
-	if (host->curr.user_pages) {
-		struct scatterlist *sg = host->dma.sg;
-		int i;
-
-		for (i = 0; i < host->dma.num_ents; i++)
-			flush_dcache_page(sg_page(sg++));
-	}
-
 	host->dma.sg = NULL;
 	host->dma.busy = 0;
 
@@ -395,7 +388,7 @@ static int msmsdcc_config_dma(struct msmsdcc_host *host, struct mmc_data *data)
 	n = dma_map_sg(mmc_dev(host->mmc), host->dma.sg,
 			host->dma.num_ents, host->dma.dir);
 	if (n == 0) {
-		printk(KERN_ERR "%s: Unable to map in all sg elements\n",
+		pr_err("%s: Unable to map in all sg elements\n",
 			mmc_hostname(host->mmc));
 		host->dma.sg = NULL;
 		host->dma.num_ents = 0;
@@ -481,7 +474,7 @@ msmsdcc_start_command_deferred(struct msmsdcc_host *host,
 		*c |= MCI_CSPM_MCIABORT;
 
 	if (host->curr.cmd != NULL) {
-		printk(KERN_ERR "%s: Overlapping command requests\n",
+		pr_err("%s: Overlapping command requests\n",
 			mmc_hostname(host->mmc));
 	}
 	host->curr.cmd = cmd;
@@ -550,7 +543,9 @@ msmsdcc_start_data(struct msmsdcc_host *host, struct mmc_data *data,
 
 		msmsdcc_writel(host, host->curr.xfer_size, MMCIDATALENGTH);
 
-		msmsdcc_writel(host, pio_irqmask, MMCIMASK1);
+		msmsdcc_writel(host, (msmsdcc_readl(host, MMCIMASK0) &
+				(~MCI_IRQ_PIO)) | pio_irqmask, MMCIMASK0);
+
 		msmsdcc_writel(host, datactrl, MMCIDATACTRL);
 
 		if (cmd) {
@@ -666,8 +661,13 @@ msmsdcc_pio_irq(int irq, void *dev_id)
 {
 	struct msmsdcc_host	*host = dev_id;
 	uint32_t		status;
+	u32 mci_mask0;
 
 	status = msmsdcc_readl(host, MMCISTATUS);
+	mci_mask0 = msmsdcc_readl(host, MMCIMASK0);
+
+	if (((mci_mask0 & status) & MCI_IRQ_PIO) == 0)
+		return IRQ_NONE;
 
 	do {
 		unsigned long flags;
@@ -688,8 +688,8 @@ msmsdcc_pio_irq(int irq, void *dev_id)
 
 		/* Map the current scatter buffer */
 		local_irq_save(flags);
-		buffer = kmap_atomic(sg_page(host->pio.sg),
-				     KM_BIO_SRC_IRQ) + host->pio.sg->offset;
+		buffer = kmap_atomic(sg_page(host->pio.sg))
+				     + host->pio.sg->offset;
 		buffer += host->pio.sg_off;
 		remain = host->pio.sg->length - host->pio.sg_off;
 		len = 0;
@@ -699,7 +699,7 @@ msmsdcc_pio_irq(int irq, void *dev_id)
 			len = msmsdcc_pio_write(host, buffer, remain, status);
 
 		/* Unmap the buffer */
-		kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+		kunmap_atomic(buffer);
 		local_irq_restore(flags);
 
 		host->pio.sg_off += len;
@@ -726,10 +726,12 @@ msmsdcc_pio_irq(int irq, void *dev_id)
 	} while (1);
 
 	if (status & MCI_RXACTIVE && host->curr.xfer_remain < MCI_FIFOSIZE)
-		msmsdcc_writel(host, MCI_RXDATAAVLBLMASK, MMCIMASK1);
+		msmsdcc_writel(host, (mci_mask0 & (~MCI_IRQ_PIO)) |
+					MCI_RXDATAAVLBLMASK, MMCIMASK0);
 
 	if (!host->curr.xfer_remain)
-		msmsdcc_writel(host, 0, MMCIMASK1);
+		msmsdcc_writel(host, (mci_mask0 & (~MCI_IRQ_PIO)) | 0,
+					MMCIMASK0);
 
 	return IRQ_HANDLED;
 }
@@ -861,6 +863,8 @@ msmsdcc_irq(int irq, void *dev_id)
 	do {
 		status = msmsdcc_readl(host, MMCISTATUS);
 		status &= msmsdcc_readl(host, MMCIMASK0);
+		if ((status & (~MCI_IRQ_PIO)) == 0)
+			break;
 		msmsdcc_writel(host, status, MMCICLEAR);
 
 		if (status & MCI_SDIOINTR)
@@ -941,6 +945,38 @@ msmsdcc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
+static void msmsdcc_setup_gpio(struct msmsdcc_host *host, bool enable)
+{
+	struct msm_mmc_gpio_data *curr;
+	int i, rc = 0;
+
+	if (!host->plat->gpio_data || host->gpio_config_status == enable)
+		return;
+
+	curr = host->plat->gpio_data;
+	for (i = 0; i < curr->size; i++) {
+		if (enable) {
+			rc = gpio_request(curr->gpio[i].no,
+						curr->gpio[i].name);
+			if (rc) {
+				pr_err("%s: gpio_request(%d, %s) failed %d\n",
+					mmc_hostname(host->mmc),
+					curr->gpio[i].no,
+					curr->gpio[i].name, rc);
+				goto free_gpios;
+			}
+		} else {
+			gpio_free(curr->gpio[i].no);
+		}
+	}
+	host->gpio_config_status = enable;
+	return;
+
+free_gpios:
+	for (; i >= 0; i--)
+		gpio_free(curr->gpio[i].no);
+}
+
 static void
 msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
@@ -953,6 +989,8 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	msmsdcc_enable_clocks(host);
 
+	spin_unlock_irqrestore(&host->lock, flags);
+
 	if (ios->clock) {
 		if (ios->clock != host->clk_rate) {
 			rc = clk_set_rate(host->clk, ios->clock);
@@ -979,9 +1017,11 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	switch (ios->power_mode) {
 	case MMC_POWER_OFF:
+		msmsdcc_setup_gpio(host, false);
 		break;
 	case MMC_POWER_UP:
 		pwr |= MCI_PWR_UP;
+		msmsdcc_setup_gpio(host, true);
 		break;
 	case MMC_POWER_ON:
 		pwr |= MCI_PWR_ON;
@@ -998,9 +1038,10 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		msmsdcc_writel(host, pwr, MMCIPOWER);
 	}
 #if BUSCLK_PWRSAVE
+	spin_lock_irqsave(&host->lock, flags);
 	msmsdcc_disable_clocks(host, 1);
-#endif
 	spin_unlock_irqrestore(&host->lock, flags);
+#endif
 }
 
 static void msmsdcc_enable_sdio_irq(struct mmc_host *mmc, int enable)
@@ -1022,10 +1063,19 @@ static void msmsdcc_enable_sdio_irq(struct mmc_host *mmc, int enable)
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
+static void msmsdcc_init_card(struct mmc_host *mmc, struct mmc_card *card)
+{
+	struct msmsdcc_host *host = mmc_priv(mmc);
+
+	if (host->plat->init_card)
+		host->plat->init_card(card);
+}
+
 static const struct mmc_host_ops msmsdcc_ops = {
 	.request	= msmsdcc_request,
 	.set_ios	= msmsdcc_set_ios,
 	.enable_sdio_irq = msmsdcc_enable_sdio_irq,
+	.init_card	= msmsdcc_init_card,
 };
 
 static void
@@ -1062,7 +1112,7 @@ msmsdcc_platform_status_irq(int irq, void *dev_id)
 {
 	struct msmsdcc_host *host = dev_id;
 
-	printk(KERN_DEBUG "%s: %d\n", __func__, irq);
+	pr_debug("%s: %d\n", __func__, irq);
 	msmsdcc_check_status((unsigned long) host);
 	return IRQ_HANDLED;
 }
@@ -1072,7 +1122,7 @@ msmsdcc_status_notify_cb(int card_present, void *dev_id)
 {
 	struct msmsdcc_host *host = dev_id;
 
-	printk(KERN_DEBUG "%s: card_present %d\n", mmc_hostname(host->mmc),
+	pr_debug("%s: card_present %d\n", mmc_hostname(host->mmc),
 	       card_present);
 	msmsdcc_check_status((unsigned long) host);
 }
@@ -1120,7 +1170,6 @@ msmsdcc_probe(struct platform_device *pdev)
 	struct msmsdcc_host *host;
 	struct mmc_host *mmc;
 	struct resource *cmd_irqres = NULL;
-	struct resource *pio_irqres = NULL;
 	struct resource *stat_irqres = NULL;
 	struct resource *memres = NULL;
 	struct resource *dmares = NULL;
@@ -1145,12 +1194,10 @@ msmsdcc_probe(struct platform_device *pdev)
 	dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
 	cmd_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
 						  "cmd_irq");
-	pio_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
-						  "pio_irq");
 	stat_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
 						   "status_irq");
 
-	if (!cmd_irqres || !pio_irqres || !memres) {
+	if (!cmd_irqres || !memres) {
 		pr_err("%s: Invalid resource\n", __func__);
 		return -ENXIO;
 	}
@@ -1170,17 +1217,20 @@ msmsdcc_probe(struct platform_device *pdev)
 	host->plat = plat;
 	host->mmc = mmc;
 	host->curr.cmd = NULL;
+	init_timer(&host->busclk_timer);
+	host->busclk_timer.data = (unsigned long) host;
+	host->busclk_timer.function = msmsdcc_busclk_expired;
+
 
 	host->cmdpoll = 1;
 
 	host->base = ioremap(memres->start, PAGE_SIZE);
 	if (!host->base) {
 		ret = -ENOMEM;
-		goto out;
+		goto host_free;
 	}
 
 	host->cmd_irqres = cmd_irqres;
-	host->pio_irqres = pio_irqres;
 	host->memres = memres;
 	host->dmares = dmares;
 	spin_lock_init(&host->lock);
@@ -1191,13 +1241,19 @@ msmsdcc_probe(struct platform_device *pdev)
 	/*
 	 * Setup DMA
 	 */
-	msmsdcc_init_dma(host);
+	if (host->dmares) {
+		ret = msmsdcc_init_dma(host);
+		if (ret)
+			goto ioremap_free;
+	} else {
+		host->dma.channel = -1;
+	}
 
 	/* Get our clocks */
 	host->pclk = clk_get(&pdev->dev, "sdc_pclk");
 	if (IS_ERR(host->pclk)) {
 		ret = PTR_ERR(host->pclk);
-		goto host_free;
+		goto dma_free;
 	}
 
 	host->clk = clk_get(&pdev->dev, "sdc_clk");
@@ -1206,17 +1262,25 @@ msmsdcc_probe(struct platform_device *pdev)
 		goto pclk_put;
 	}
 
-	/* Enable clocks */
-	ret = msmsdcc_enable_clocks(host);
-	if (ret)
-		goto clk_put;
-
 	ret = clk_set_rate(host->clk, msmsdcc_fmin);
 	if (ret) {
 		pr_err("%s: Clock rate set failed (%d)\n", __func__, ret);
-		goto clk_disable;
+		goto clk_put;
 	}
 
+	ret = clk_prepare(host->pclk);
+	if (ret)
+		goto clk_put;
+
+	ret = clk_prepare(host->clk);
+	if (ret)
+		goto clk_unprepare_p;
+
+	/* Enable clocks */
+	ret = msmsdcc_enable_clocks(host);
+	if (ret)
+		goto clk_unprepare;
+
 	host->pclk_rate = clk_get_rate(host->pclk);
 	host->clk_rate = clk_get_rate(host->clk);
 
@@ -1286,16 +1350,12 @@ msmsdcc_probe(struct platform_device *pdev)
 		host->eject = !host->oldstat;
 	}
 
-	init_timer(&host->busclk_timer);
-	host->busclk_timer.data = (unsigned long) host;
-	host->busclk_timer.function = msmsdcc_busclk_expired;
-
 	ret = request_irq(cmd_irqres->start, msmsdcc_irq, IRQF_SHARED,
 			  DRIVER_NAME " (cmd)", host);
 	if (ret)
 		goto stat_irq_free;
 
-	ret = request_irq(pio_irqres->start, msmsdcc_pio_irq, IRQF_SHARED,
+	ret = request_irq(cmd_irqres->start, msmsdcc_pio_irq, IRQF_SHARED,
 			  DRIVER_NAME " (pio)", host);
 	if (ret)
 		goto cmd_irq_free;
@@ -1334,10 +1394,21 @@ msmsdcc_probe(struct platform_device *pdev)
 		free_irq(host->stat_irq, host);
  clk_disable:
 	msmsdcc_disable_clocks(host, 0);
+ clk_unprepare:
+	clk_unprepare(host->clk);
+ clk_unprepare_p:
+	clk_unprepare(host->pclk);
  clk_put:
 	clk_put(host->clk);
  pclk_put:
 	clk_put(host->pclk);
+dma_free:
+	if (host->dmares)
+		dma_free_coherent(NULL, sizeof(struct msmsdcc_nc_dmadata),
+					host->dma.nc, host->dma.nc_busaddr);
+ioremap_free:
+	tasklet_kill(&host->dma_tlet);
+	iounmap(host->base);
  host_free:
 	mmc_free_host(mmc);
  out:
@@ -1345,28 +1416,10 @@ msmsdcc_probe(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-#ifdef CONFIG_MMC_MSM7X00A_RESUME_IN_WQ
-static void
-do_resume_work(struct work_struct *work)
-{
-	struct msmsdcc_host *host =
-		container_of(work, struct msmsdcc_host, resume_task);
-	struct mmc_host	*mmc = host->mmc;
-
-	if (mmc) {
-		mmc_resume_host(mmc);
-		if (host->stat_irq)
-			enable_irq(host->stat_irq);
-	}
-}
-#endif
-
-
 static int
 msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct mmc_host *mmc = mmc_get_drvdata(dev);
-	int rc = 0;
 
 	if (mmc) {
 		struct msmsdcc_host *host = mmc_priv(mmc);
@@ -1374,14 +1427,11 @@ msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
 		if (host->stat_irq)
 			disable_irq(host->stat_irq);
 
-		if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
-			rc = mmc_suspend_host(mmc);
-		if (!rc)
-			msmsdcc_writel(host, 0, MMCIMASK0);
+		msmsdcc_writel(host, 0, MMCIMASK0);
 		if (host->clks_on)
 			msmsdcc_disable_clocks(host, 0);
 	}
-	return rc;
+	return 0;
 }
 
 static int
@@ -1396,8 +1446,6 @@ msmsdcc_resume(struct platform_device *dev)
 
 		msmsdcc_writel(host, host->saved_irq0mask, MMCIMASK0);
 
-		if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
-			mmc_resume_host(mmc);
 		if (host->stat_irq)
 			enable_irq(host->stat_irq);
 #if BUSCLK_PWRSAVE
@@ -1420,18 +1468,7 @@ static struct platform_driver msmsdcc_driver = {
 	},
 };
 
-static int __init msmsdcc_init(void)
-{
-	return platform_driver_register(&msmsdcc_driver);
-}
-
-static void __exit msmsdcc_exit(void)
-{
-	platform_driver_unregister(&msmsdcc_driver);
-}
-
-module_init(msmsdcc_init);
-module_exit(msmsdcc_exit);
+module_platform_driver(msmsdcc_driver);
 
 MODULE_DESCRIPTION("Qualcomm MSM 7X00A Multimedia Card Interface driver");
 MODULE_LICENSE("GPL");