Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
 * Support for the HS200 high-speed eMMC mode.
 * Support SDIO 3.0 Ultra High Speed cards.
 * Kill pending block requests immediately if card is removed.
 * Enable the eMMC feature for locking boot partitions read-only
   until next power on, exposed via sysfs.

Drivers:
 * Runtime PM support for Intel Medfield SDIO.
 * Suspend/resume support for sdhci-spear.
 * sh-mmcif now processes requests asynchronously.

* tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (58 commits)
  mmc: fix a deadlock between system suspend and MMC block IO
  mmc: sdhci: restore the enabled dma when do reset all
  mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation
  mmc: host: Adds support for eMMC 4.5 HS200 mode
  mmc: core: HS200 mode support for eMMC 4.5
  mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT()
  mmc: core: Separate the timeout value for cache-ctrl
  mmc: sdhci-spear: Fix compilation error
  mmc: sdhci: Deal with failure case in sdhci_suspend_host
  mmc: dw_mmc: Clear the DDR mode for non-DDR
  mmc: sd: Fix SDR12 timing regression
  mmc: sdhci: Fix tuning timer incorrect setting when suspending host
  mmc: core: Add option to prevent eMMC sleep command
  mmc: omap_hsmmc: use threaded irq handler for card-detect.
  mmc: sdhci-pci: enable runtime PM for Medfield SDIO
  mmc: sdhci: Always pass clock request value zero to set_clock host op
  mmc: sdhci-pci: remove SDHCI_QUIRK2_OWN_CARD_DETECTION
  mmc: sdhci-pci: get gpio numbers from platform data
  mmc: sdhci-pci: add platform data
  mmc: sdhci: prevent card detection activity for non-removable cards
  ...

36 files changed, 839 insertions, 703 deletions

diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index b4b83f302e32..745f8fce2519 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_MMC_MXC)		+= mxcmmc.o
 obj-$(CONFIG_MMC_MXS)           += mxs-mmc.o
 obj-$(CONFIG_MMC_SDHCI)         += sdhci.o
 obj-$(CONFIG_MMC_SDHCI_PCI)     += sdhci-pci.o
+obj-$(subst m,y,$(CONFIG_MMC_SDHCI_PCI))        += sdhci-pci-data.o
 obj-$(CONFIG_MMC_SDHCI_PXAV3)   += sdhci-pxav3.o
 obj-$(CONFIG_MMC_SDHCI_PXAV2)   += sdhci-pxav2.o
 obj-$(CONFIG_MMC_SDHCI_S3C)     += sdhci-s3c.o
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index f437c3e6f3aa..947faa5d2ce4 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -236,7 +236,7 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
 
                 sg = &data->sg[i];
 
-                sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+                sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
                 amount = min(size, sg->length);
                 size -= amount;
 
@@ -252,7 +252,7 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
                         dmabuf = (unsigned *)tmpv;
                 }
 
-                kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+                kunmap_atomic(sgbuffer);
 
                 if (size == 0)
                         break;
@@ -302,7 +302,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
 
                 sg = &data->sg[i];
 
-                sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+                sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
                 amount = min(size, sg->length);
                 size -= amount;
 
@@ -318,7 +318,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
                 }
 
                 flush_kernel_dcache_page(sg_page(sg));
-                kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+                kunmap_atomic(sgbuffer);
                 data->bytes_xfered += amount;
                 if (size == 0)
                         break;
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 0371bf502249..03666174ca48 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -627,17 +627,7 @@ static struct platform_driver sdh_driver = {
         },
 };
 
-static int __init sdh_init(void)
-{
-        return platform_driver_register(&sdh_driver);
-}
-module_init(sdh_init);
-
-static void __exit sdh_exit(void)
-{
-        platform_driver_unregister(&sdh_driver);
-}
-module_exit(sdh_exit);
+module_platform_driver(sdh_driver);
 
 MODULE_DESCRIPTION("Blackfin Secure Digital Host Driver");
 MODULE_AUTHOR("Cliff Cai, Roy Huang");
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index ce2a47b71dd6..83693fd7c6b3 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -780,18 +780,7 @@ static struct platform_driver cb710_mmc_driver = {
 #endif
 };
 
-static int __init cb710_mmc_init_module(void)
-{
-        return platform_driver_register(&cb710_mmc_driver);
-}
-
-static void __exit cb710_mmc_cleanup_module(void)
-{
-        platform_driver_unregister(&cb710_mmc_driver);
-}
-
-module_init(cb710_mmc_init_module);
-module_exit(cb710_mmc_cleanup_module);
+module_platform_driver(cb710_mmc_driver);
 
 MODULE_AUTHOR("Michał Mirosław <mirq-linux@rere.qmqm.pl>");
 MODULE_DESCRIPTION("ENE CB710 memory card reader driver - MMC/SD part");
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,
         },
 };
 
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 72c071f6e001..df392a1143f2 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -126,7 +126,7 @@
 #define SDMMC_CMD_RESP_EXP              BIT(6)
 #define SDMMC_CMD_INDX(n)               ((n) & 0x1F)
 /* Status register defines */
-#define SDMMC_GET_FCNT(x)               (((x)>>17) & 0x1FF)
+#define SDMMC_GET_FCNT(x)               (((x)>>17) & 0x1FFF)
 /* Internal DMAC interrupt defines */
 #define SDMMC_IDMAC_INT_AI              BIT(9)
 #define SDMMC_IDMAC_INT_NI              BIT(8)
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 74218ad677e4..c8852a8128a9 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -1012,17 +1012,7 @@ static struct platform_driver jz4740_mmc_driver = {
         },
 };
 
-static int __init jz4740_mmc_init(void)
-{
-        return platform_driver_register(&jz4740_mmc_driver);
-}
-module_init(jz4740_mmc_init);
-
-static void __exit jz4740_mmc_exit(void)
-{
-        platform_driver_unregister(&jz4740_mmc_driver);
-}
-module_exit(jz4740_mmc_exit);
+module_platform_driver(jz4740_mmc_driver);
 
 MODULE_DESCRIPTION("JZ4740 SD/MMC controller driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 92946b84e9fa..273306c68d58 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1525,7 +1525,6 @@ static struct of_device_id mmc_spi_of_match_table[] __devinitdata = {
 static struct spi_driver mmc_spi_driver = {
         .driver = {
                 .name =         "mmc_spi",
-                .bus =          &spi_bus_type,
                 .owner =        THIS_MODULE,
                 .of_match_table = mmc_spi_of_match_table,
         },
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index fa8dd2fda4b2..ece03b491c7d 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1245,6 +1245,7 @@ static int __devinit mmci_probe(struct amba_device *dev,
         if (host->vcc == NULL)
                 mmc->ocr_avail = plat->ocr_mask;
         mmc->caps = plat->capabilities;
+        mmc->caps2 = plat->capabilities2;
 
         /*
          * We can do SGIO
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 80d8eb143b48..1d14cda95e56 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -689,8 +689,8 @@ 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;
@@ -700,7 +700,7 @@ 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;
@@ -1480,18 +1480,7 @@ 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");
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 8e0fbe994047..7088b40f9579 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1047,18 +1047,7 @@ static struct platform_driver mxcmci_driver = {
         }
 };
 
-static int __init mxcmci_init(void)
-{
-        return platform_driver_register(&mxcmci_driver);
-}
-
-static void __exit mxcmci_exit(void)
-{
-        platform_driver_unregister(&mxcmci_driver);
-}
-
-module_init(mxcmci_init);
-module_exit(mxcmci_exit);
+module_platform_driver(mxcmci_driver);
 
 MODULE_DESCRIPTION("i.MX Multimedia Card Interface Driver");
 MODULE_AUTHOR("Sascha Hauer, Pengutronix");
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 973011f9a298..4e2e019dd5c9 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -855,18 +855,7 @@ static struct platform_driver mxs_mmc_driver = {
         },
 };
 
-static int __init mxs_mmc_init(void)
-{
-        return platform_driver_register(&mxs_mmc_driver);
-}
-
-static void __exit mxs_mmc_exit(void)
-{
-        platform_driver_unregister(&mxs_mmc_driver);
-}
-
-module_init(mxs_mmc_init);
-module_exit(mxs_mmc_exit);
+module_platform_driver(mxs_mmc_driver);
 
 MODULE_DESCRIPTION("FREESCALE MXS MMC peripheral");
 MODULE_AUTHOR("Freescale Semiconductor");
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d1fb561e089d..fd0c661bbad3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -24,7 +24,6 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
-#include <linux/workqueue.h>
 #include <linux/timer.h>
 #include <linux/clk.h>
 #include <linux/mmc/host.h>
@@ -120,7 +119,6 @@
 
 #define MMC_AUTOSUSPEND_DELAY   100
 #define MMC_TIMEOUT_MS          20
-#define OMAP_MMC_MASTER_CLOCK   96000000
 #define OMAP_MMC_MIN_CLOCK      400000
 #define OMAP_MMC_MAX_CLOCK      52000000
 #define DRIVER_NAME             "omap_hsmmc"
@@ -163,7 +161,6 @@ struct omap_hsmmc_host {
          */
         struct  regulator       *vcc;
         struct  regulator       *vcc_aux;
-        struct  work_struct     mmc_carddetect_work;
         void    __iomem         *base;
         resource_size_t         mapbase;
         spinlock_t              irq_lock; /* Prevent races with irq handler */
@@ -598,12 +595,12 @@ static void omap_hsmmc_disable_irq(struct omap_hsmmc_host *host)
 }
 
 /* Calculate divisor for the given clock frequency */
-static u16 calc_divisor(struct mmc_ios *ios)
+static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios)
 {
         u16 dsor = 0;
 
         if (ios->clock) {
-                dsor = DIV_ROUND_UP(OMAP_MMC_MASTER_CLOCK, ios->clock);
+                dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock);
                 if (dsor > 250)
                         dsor = 250;
         }
@@ -623,7 +620,7 @@ static void omap_hsmmc_set_clock(struct omap_hsmmc_host *host)
 
         regval = OMAP_HSMMC_READ(host->base, SYSCTL);
         regval = regval & ~(CLKD_MASK | DTO_MASK);
-        regval = regval | (calc_divisor(ios) << 6) | (DTO << 16);
+        regval = regval | (calc_divisor(host, ios) << 6) | (DTO << 16);
         OMAP_HSMMC_WRITE(host->base, SYSCTL, regval);
         OMAP_HSMMC_WRITE(host->base, SYSCTL,
                 OMAP_HSMMC_READ(host->base, SYSCTL) | ICE);
@@ -1280,17 +1277,16 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 }
 
 /*
- * Work Item to notify the core about card insertion/removal
+ * irq handler to notify the core about card insertion/removal
  */
-static void omap_hsmmc_detect(struct work_struct *work)
+static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 {
-        struct omap_hsmmc_host *host =
-                container_of(work, struct omap_hsmmc_host, mmc_carddetect_work);
+        struct omap_hsmmc_host *host = dev_id;
         struct omap_mmc_slot_data *slot = &mmc_slot(host);
         int carddetect;
 
         if (host->suspended)
-                return;
+                return IRQ_HANDLED;
 
         sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
@@ -1305,19 +1301,6 @@ static void omap_hsmmc_detect(struct work_struct *work)
                 mmc_detect_change(host->mmc, (HZ * 200) / 1000);
         else
                 mmc_detect_change(host->mmc, (HZ * 50) / 1000);
-}
-
-/*
- * ISR for handling card insertion and removal
- */
-static irqreturn_t omap_hsmmc_cd_handler(int irq, void *dev_id)
-{
-        struct omap_hsmmc_host *host = (struct omap_hsmmc_host *)dev_id;
-
-        if (host->suspended)
-                return IRQ_HANDLED;
-        schedule_work(&host->mmc_carddetect_work);
-
         return IRQ_HANDLED;
 }
 
@@ -1919,7 +1902,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
         host->next_data.cookie = 1;
 
         platform_set_drvdata(pdev, host);
-        INIT_WORK(&host->mmc_carddetect_work, omap_hsmmc_detect);
 
         mmc->ops        = &omap_hsmmc_ops;
 
@@ -2049,10 +2031,11 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 
         /* Request IRQ for card detect */
         if ((mmc_slot(host).card_detect_irq)) {
-                ret = request_irq(mmc_slot(host).card_detect_irq,
-                                  omap_hsmmc_cd_handler,
-                                  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-                                  mmc_hostname(mmc), host);
+                ret = request_threaded_irq(mmc_slot(host).card_detect_irq,
+                                           NULL,
+                                           omap_hsmmc_detect,
+                                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+                                           mmc_hostname(mmc), host);
                 if (ret) {
                         dev_dbg(mmc_dev(host->mmc),
                                 "Unable to grab MMC CD IRQ\n");
@@ -2131,7 +2114,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
                 free_irq(host->irq, host);
                 if (mmc_slot(host).card_detect_irq)
                         free_irq(mmc_slot(host).card_detect_irq, host);
-                flush_work_sync(&host->mmc_carddetect_work);
 
                 pm_runtime_put_sync(host->dev);
                 pm_runtime_disable(host->dev);
@@ -2178,7 +2160,6 @@ static int omap_hsmmc_suspend(struct device *dev)
                                 return ret;
                         }
                 }
-                cancel_work_sync(&host->mmc_carddetect_work);
                 ret = mmc_suspend_host(host->mmc);
 
                 if (ret) {
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index fc4356e00d46..cb2dc0e75ba7 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -872,18 +872,7 @@ static struct platform_driver pxamci_driver = {
         },
 };
 
-static int __init pxamci_init(void)
-{
-        return platform_driver_register(&pxamci_driver);
-}
-
-static void __exit pxamci_exit(void)
-{
-        platform_driver_unregister(&pxamci_driver);
-}
-
-module_init(pxamci_init);
-module_exit(pxamci_exit);
+module_platform_driver(pxamci_driver);
 
 MODULE_DESCRIPTION("PXA Multimedia Card Interface Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 720f99334a7f..1bcfd6dbb5cc 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1914,18 +1914,7 @@ static struct platform_driver s3cmci_driver = {
         .shutdown       = s3cmci_shutdown,
 };
 
-static int __init s3cmci_init(void)
-{
-        return platform_driver_register(&s3cmci_driver);
-}
-
-static void __exit s3cmci_exit(void)
-{
-        platform_driver_unregister(&s3cmci_driver);
-}
-
-module_init(s3cmci_init);
-module_exit(s3cmci_exit);
+module_platform_driver(s3cmci_driver);
 
 MODULE_DESCRIPTION("Samsung S3C MMC/SD Card Interface driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index b4257e700617..28a870804f60 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -115,17 +115,7 @@ static struct platform_driver sdhci_cns3xxx_driver = {
         .remove         = __devexit_p(sdhci_cns3xxx_remove),
 };
 
-static int __init sdhci_cns3xxx_init(void)
-{
-        return platform_driver_register(&sdhci_cns3xxx_driver);
-}
-module_init(sdhci_cns3xxx_init);
-
-static void __exit sdhci_cns3xxx_exit(void)
-{
-        platform_driver_unregister(&sdhci_cns3xxx_driver);
-}
-module_exit(sdhci_cns3xxx_exit);
+module_platform_driver(sdhci_cns3xxx_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for CNS3xxx");
 MODULE_AUTHOR("Scott Shu, "
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index a81312c91f70..46fd1fd1b605 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -88,17 +88,7 @@ static struct platform_driver sdhci_dove_driver = {
         .remove         = __devexit_p(sdhci_dove_remove),
 };
 
-static int __init sdhci_dove_init(void)
-{
-        return platform_driver_register(&sdhci_dove_driver);
-}
-module_init(sdhci_dove_init);
-
-static void __exit sdhci_dove_exit(void)
-{
-        platform_driver_unregister(&sdhci_dove_driver);
-}
-module_exit(sdhci_dove_exit);
+module_platform_driver(sdhci_dove_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for Dove");
 MODULE_AUTHOR("Saeed Bishara <saeed@marvell.com>, "
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 38ebc4ea259f..d601e41af282 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -606,17 +606,7 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
         .remove         = __devexit_p(sdhci_esdhc_imx_remove),
 };
 
-static int __init sdhci_esdhc_imx_init(void)
-{
-        return platform_driver_register(&sdhci_esdhc_imx_driver);
-}
-module_init(sdhci_esdhc_imx_init);
-
-static void __exit sdhci_esdhc_imx_exit(void)
-{
-        platform_driver_unregister(&sdhci_esdhc_imx_driver);
-}
-module_exit(sdhci_esdhc_imx_exit);
+module_platform_driver(sdhci_esdhc_imx_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for Freescale i.MX eSDHC");
 MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index c3b08f111942..b97b2f5dafdb 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -73,7 +73,7 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
                 | (div << ESDHC_DIVIDER_SHIFT)
                 | (pre_div << ESDHC_PREDIV_SHIFT));
         sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
-        mdelay(100);
+        mdelay(1);
 out:
         host->clock = clock;
 }
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 01e5f627e0f0..ff4adc018041 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -131,17 +131,7 @@ static struct platform_driver sdhci_esdhc_driver = {
         .remove = __devexit_p(sdhci_esdhc_remove),
 };
 
-static int __init sdhci_esdhc_init(void)
-{
-        return platform_driver_register(&sdhci_esdhc_driver);
-}
-module_init(sdhci_esdhc_init);
-
-static void __exit sdhci_esdhc_exit(void)
-{
-        platform_driver_unregister(&sdhci_esdhc_driver);
-}
-module_exit(sdhci_esdhc_exit);
+module_platform_driver(sdhci_esdhc_driver);
 
 MODULE_DESCRIPTION("SDHCI OF driver for Freescale MPC eSDHC");
 MODULE_AUTHOR("Xiaobo Xie <X.Xie@freescale.com>, "
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 3619adc7d9fc..0ce088ae0228 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -93,17 +93,7 @@ static struct platform_driver sdhci_hlwd_driver = {
         .remove = __devexit_p(sdhci_hlwd_remove),
 };
 
-static int __init sdhci_hlwd_init(void)
-{
-        return platform_driver_register(&sdhci_hlwd_driver);
-}
-module_init(sdhci_hlwd_init);
-
-static void __exit sdhci_hlwd_exit(void)
-{
-        platform_driver_unregister(&sdhci_hlwd_driver);
-}
-module_exit(sdhci_hlwd_exit);
+module_platform_driver(sdhci_hlwd_driver);
 
 MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
 MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
diff --git a/drivers/mmc/host/sdhci-pci-data.c b/drivers/mmc/host/sdhci-pci-data.c
new file mode 100644
index 000000000000..a611217769f5
--- /dev/null
+++ b/drivers/mmc/host/sdhci-pci-data.c
@@ -0,0 +1,5 @@
+#include <linux/module.h>
+#include <linux/mmc/sdhci-pci-data.h>
+
+struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev, int slotno);
+EXPORT_SYMBOL_GPL(sdhci_pci_get_data);
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 6878a94626bc..7165e6a09274 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -23,8 +23,8 @@
 #include <linux/scatterlist.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
-#include <linux/sfi.h>
 #include <linux/pm_runtime.h>
+#include <linux/mmc/sdhci-pci-data.h>
 
 #include "sdhci.h"
 
@@ -61,6 +61,7 @@ struct sdhci_pci_fixes {
 struct sdhci_pci_slot {
         struct sdhci_pci_chip   *chip;
         struct sdhci_host       *host;
+        struct sdhci_pci_data   *data;
 
         int                     pci_bar;
         int                     rst_n_gpio;
@@ -171,32 +172,9 @@ static int mrst_hc_probe(struct sdhci_pci_chip *chip)
         return 0;
 }
 
-/* Medfield eMMC hardware reset GPIOs */
-static int mfd_emmc0_rst_gpio = -EINVAL;
-static int mfd_emmc1_rst_gpio = -EINVAL;
-
-static int mfd_emmc_gpio_parse(struct sfi_table_header *table)
-{
-        struct sfi_table_simple *sb = (struct sfi_table_simple *)table;
-        struct sfi_gpio_table_entry *entry;
-        int i, num;
-
-        num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
-        entry = (struct sfi_gpio_table_entry *)sb->pentry;
-
-        for (i = 0; i < num; i++, entry++) {
-                if (!strncmp(entry->pin_name, "emmc0_rst", SFI_NAME_LEN))
-                        mfd_emmc0_rst_gpio = entry->pin_no;
-                else if (!strncmp(entry->pin_name, "emmc1_rst", SFI_NAME_LEN))
-                        mfd_emmc1_rst_gpio = entry->pin_no;
-        }
-
-        return 0;
-}
-
 #ifdef CONFIG_PM_RUNTIME
 
-static irqreturn_t mfd_sd_cd(int irq, void *dev_id)
+static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
 {
         struct sdhci_pci_slot *slot = dev_id;
         struct sdhci_host *host = slot->host;
@@ -205,15 +183,16 @@ static irqreturn_t mfd_sd_cd(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-#define MFLD_SD_CD_PIN 69
-
-static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot)
+static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
 {
-        int err, irq, gpio = MFLD_SD_CD_PIN;
+        int err, irq, gpio = slot->cd_gpio;
 
         slot->cd_gpio = -EINVAL;
         slot->cd_irq = -EINVAL;
 
+        if (!gpio_is_valid(gpio))
+                return;
+
         err = gpio_request(gpio, "sd_cd");
         if (err < 0)
                 goto out;
@@ -226,72 +205,53 @@ static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot)
         if (irq < 0)
                 goto out_free;
 
-        err = request_irq(irq, mfd_sd_cd, IRQF_TRIGGER_RISING |
+        err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
                           IRQF_TRIGGER_FALLING, "sd_cd", slot);
         if (err)
                 goto out_free;
 
         slot->cd_gpio = gpio;
         slot->cd_irq = irq;
-        slot->host->quirks2 |= SDHCI_QUIRK2_OWN_CARD_DETECTION;
 
-        return 0;
+        return;
 
 out_free:
         gpio_free(gpio);
 out:
         dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
-        return 0;
 }
 
-static void mfd_sd_remove_slot(struct sdhci_pci_slot *slot, int dead)
+static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
 {
         if (slot->cd_irq >= 0)
                 free_irq(slot->cd_irq, slot);
-        gpio_free(slot->cd_gpio);
+        if (gpio_is_valid(slot->cd_gpio))
+                gpio_free(slot->cd_gpio);
 }
 
 #else
 
-#define mfd_sd_probe_slot       NULL
-#define mfd_sd_remove_slot      NULL
+static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
+{
+}
+
+static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
+{
+}
 
 #endif
 
 static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
-        const char *name = NULL;
-        int gpio = -EINVAL;
-
-        sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, mfd_emmc_gpio_parse);
-
-        switch (slot->chip->pdev->device) {
-        case PCI_DEVICE_ID_INTEL_MFD_EMMC0:
-                gpio = mfd_emmc0_rst_gpio;
-                name = "eMMC0_reset";
-                break;
-        case PCI_DEVICE_ID_INTEL_MFD_EMMC1:
-                gpio = mfd_emmc1_rst_gpio;
-                name = "eMMC1_reset";
-                break;
-        }
-
-        if (!gpio_request(gpio, name)) {
-                gpio_direction_output(gpio, 1);
-                slot->rst_n_gpio = gpio;
-                slot->host->mmc->caps |= MMC_CAP_HW_RESET;
-        }
-
         slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
-
         slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC;
-
         return 0;
 }
 
-static void mfd_emmc_remove_slot(struct sdhci_pci_slot *slot, int dead)
+static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
-        gpio_free(slot->rst_n_gpio);
+        slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD;
+        return 0;
 }
 
 static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
@@ -307,20 +267,18 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
 static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
         .quirks         = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
         .allow_runtime_pm = true,
-        .probe_slot     = mfd_sd_probe_slot,
-        .remove_slot    = mfd_sd_remove_slot,
 };
 
 static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
         .quirks         = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
         .allow_runtime_pm = true,
+        .probe_slot     = mfd_sdio_probe_slot,
 };
 
 static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
         .quirks         = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
         .allow_runtime_pm = true,
         .probe_slot     = mfd_emmc_probe_slot,
-        .remove_slot    = mfd_emmc_remove_slot,
 };
 
 /* O2Micro extra registers */
@@ -1012,11 +970,8 @@ static int sdhci_pci_suspend(struct device *dev)
 
                 ret = sdhci_suspend_host(slot->host);
 
-                if (ret) {
-                        for (i--; i >= 0; i--)
-                                sdhci_resume_host(chip->slots[i]->host);
-                        return ret;
-                }
+                if (ret)
+                        goto err_pci_suspend;
 
                 slot_pm_flags = slot->host->mmc->pm_flags;
                 if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ)
@@ -1027,11 +982,8 @@ static int sdhci_pci_suspend(struct device *dev)
 
         if (chip->fixes && chip->fixes->suspend) {
                 ret = chip->fixes->suspend(chip);
-                if (ret) {
-                        for (i = chip->num_slots - 1; i >= 0; i--)
-                                sdhci_resume_host(chip->slots[i]->host);
-                        return ret;
-                }
+                if (ret)
+                        goto err_pci_suspend;
         }
 
         pci_save_state(pdev);
@@ -1048,6 +1000,11 @@ static int sdhci_pci_suspend(struct device *dev)
         }
 
         return 0;
+
+err_pci_suspend:
+        while (--i >= 0)
+                sdhci_resume_host(chip->slots[i]->host);
+        return ret;
 }
 
 static int sdhci_pci_resume(struct device *dev)
@@ -1113,23 +1070,22 @@ static int sdhci_pci_runtime_suspend(struct device *dev)
 
                 ret = sdhci_runtime_suspend_host(slot->host);
 
-                if (ret) {
-                        for (i--; i >= 0; i--)
-                                sdhci_runtime_resume_host(chip->slots[i]->host);
-                        return ret;
-                }
+                if (ret)
+                        goto err_pci_runtime_suspend;
         }
 
         if (chip->fixes && chip->fixes->suspend) {
                 ret = chip->fixes->suspend(chip);
-                if (ret) {
-                        for (i = chip->num_slots - 1; i >= 0; i--)
-                                sdhci_runtime_resume_host(chip->slots[i]->host);
-                        return ret;
-                }
+                if (ret)
+                        goto err_pci_runtime_suspend;
         }
 
         return 0;
+
+err_pci_runtime_suspend:
+        while (--i >= 0)
+                sdhci_runtime_resume_host(chip->slots[i]->host);
+        return ret;
 }
 
 static int sdhci_pci_runtime_resume(struct device *dev)
@@ -1190,11 +1146,12 @@ static const struct dev_pm_ops sdhci_pci_pm_ops = {
 \*****************************************************************************/
 
 static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
-        struct pci_dev *pdev, struct sdhci_pci_chip *chip, int bar)
+        struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,
+        int slotno)
 {
         struct sdhci_pci_slot *slot;
         struct sdhci_host *host;
-        int ret;
+        int ret, bar = first_bar + slotno;
 
         if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
                 dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
@@ -1228,6 +1185,23 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
         slot->host = host;
         slot->pci_bar = bar;
         slot->rst_n_gpio = -EINVAL;
+        slot->cd_gpio = -EINVAL;
+
+        /* Retrieve platform data if there is any */
+        if (*sdhci_pci_get_data)
+                slot->data = sdhci_pci_get_data(pdev, slotno);
+
+        if (slot->data) {
+                if (slot->data->setup) {
+                        ret = slot->data->setup(slot->data);
+                        if (ret) {
+                                dev_err(&pdev->dev, "platform setup failed\n");
+                                goto free;
+                        }
+                }
+                slot->rst_n_gpio = slot->data->rst_n_gpio;
+                slot->cd_gpio = slot->data->cd_gpio;
+        }
 
         host->hw_name = "PCI";
         host->ops = &sdhci_pci_ops;
@@ -1238,7 +1212,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
         ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc));
         if (ret) {
                 dev_err(&pdev->dev, "cannot request region\n");
-                goto free;
+                goto cleanup;
         }
 
         host->ioaddr = pci_ioremap_bar(pdev, bar);
@@ -1254,15 +1228,30 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
                         goto unmap;
         }
 
+        if (gpio_is_valid(slot->rst_n_gpio)) {
+                if (!gpio_request(slot->rst_n_gpio, "eMMC_reset")) {
+                        gpio_direction_output(slot->rst_n_gpio, 1);
+                        slot->host->mmc->caps |= MMC_CAP_HW_RESET;
+                } else {
+                        dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
+                        slot->rst_n_gpio = -EINVAL;
+                }
+        }
+
         host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
 
         ret = sdhci_add_host(host);
         if (ret)
                 goto remove;
 
+        sdhci_pci_add_own_cd(slot);
+
         return slot;
 
 remove:
+        if (gpio_is_valid(slot->rst_n_gpio))
+                gpio_free(slot->rst_n_gpio);
+
         if (chip->fixes && chip->fixes->remove_slot)
                 chip->fixes->remove_slot(slot, 0);
 
@@ -1272,6 +1261,10 @@ unmap:
 release:
         pci_release_region(pdev, bar);
 
+cleanup:
+        if (slot->data && slot->data->cleanup)
+                slot->data->cleanup(slot->data);
+
 free:
         sdhci_free_host(host);
 
@@ -1283,6 +1276,8 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
         int dead;
         u32 scratch;
 
+        sdhci_pci_remove_own_cd(slot);
+
         dead = 0;
         scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
         if (scratch == (u32)-1)
@@ -1290,9 +1285,15 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
 
         sdhci_remove_host(slot->host, dead);
 
+        if (gpio_is_valid(slot->rst_n_gpio))
+                gpio_free(slot->rst_n_gpio);
+
         if (slot->chip->fixes && slot->chip->fixes->remove_slot)
                 slot->chip->fixes->remove_slot(slot, dead);
 
+        if (slot->data && slot->data->cleanup)
+                slot->data->cleanup(slot->data);
+
         pci_release_region(slot->chip->pdev, slot->pci_bar);
 
         sdhci_free_host(slot->host);
@@ -1379,7 +1380,7 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
         slots = chip->num_slots;        /* Quirk may have changed this */
 
         for (i = 0; i < slots; i++) {
-                slot = sdhci_pci_probe_slot(pdev, chip, first_bar + i);
+                slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
                 if (IS_ERR(slot)) {
                         for (i--; i >= 0; i--)
                                 sdhci_pci_remove_slot(chip->slots[i]);
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index 7a039c3cb1f1..dbb75bfbcffb 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -223,18 +223,8 @@ static struct platform_driver sdhci_pxav2_driver = {
         .probe          = sdhci_pxav2_probe,
         .remove         = __devexit_p(sdhci_pxav2_remove),
 };
-static int __init sdhci_pxav2_init(void)
-{
-        return platform_driver_register(&sdhci_pxav2_driver);
-}
-
-static void __exit sdhci_pxav2_exit(void)
-{
-        platform_driver_unregister(&sdhci_pxav2_driver);
-}
 
-module_init(sdhci_pxav2_init);
-module_exit(sdhci_pxav2_exit);
+module_platform_driver(sdhci_pxav2_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for pxav2");
 MODULE_AUTHOR("Marvell International Ltd.");
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index 15673a7ee6a5..f29695683556 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -269,18 +269,8 @@ static struct platform_driver sdhci_pxav3_driver = {
         .probe          = sdhci_pxav3_probe,
         .remove         = __devexit_p(sdhci_pxav3_remove),
 };
-static int __init sdhci_pxav3_init(void)
-{
-        return platform_driver_register(&sdhci_pxav3_driver);
-}
-
-static void __exit sdhci_pxav3_exit(void)
-{
-        platform_driver_unregister(&sdhci_pxav3_driver);
-}
 
-module_init(sdhci_pxav3_init);
-module_exit(sdhci_pxav3_exit);
+module_platform_driver(sdhci_pxav3_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for pxav3");
 MODULE_AUTHOR("Marvell International Ltd.");
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 9a20d1f55bb7..1af756ee0f9a 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -80,7 +80,7 @@ static void sdhci_s3c_check_sclk(struct sdhci_host *host)
 
                 tmp &= ~S3C_SDHCI_CTRL2_SELBASECLK_MASK;
                 tmp |= ourhost->cur_clk << S3C_SDHCI_CTRL2_SELBASECLK_SHIFT;
-                writel(tmp, host->ioaddr + 0x80);
+                writel(tmp, host->ioaddr + S3C_SDHCI_CONTROL2);
         }
 }
 
@@ -521,6 +521,9 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
         if (pdata->host_caps)
                 host->mmc->caps |= pdata->host_caps;
 
+        if (pdata->pm_caps)
+                host->mmc->pm_caps |= pdata->pm_caps;
+
         host->quirks |= (SDHCI_QUIRK_32BIT_DMA_ADDR |
                          SDHCI_QUIRK_32BIT_DMA_SIZE);
 
@@ -654,18 +657,7 @@ static struct platform_driver sdhci_s3c_driver = {
         },
 };
 
-static int __init sdhci_s3c_init(void)
-{
-        return platform_driver_register(&sdhci_s3c_driver);
-}
-
-static void __exit sdhci_s3c_exit(void)
-{
-        platform_driver_unregister(&sdhci_s3c_driver);
-}
-
-module_init(sdhci_s3c_init);
-module_exit(sdhci_s3c_exit);
+module_platform_driver(sdhci_s3c_driver);
 
 MODULE_DESCRIPTION("Samsung SDHCI (HSMMC) glue");
 MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 63cc8b6a1c9e..b7f8b33c5f19 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sdhci-spear.h>
@@ -271,26 +272,54 @@ static int __devexit sdhci_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM
+static int sdhci_suspend(struct device *dev)
+{
+        struct sdhci_host *host = dev_get_drvdata(dev);
+        struct spear_sdhci *sdhci = dev_get_platdata(dev);
+        int ret;
+
+        ret = sdhci_suspend_host(host);
+        if (!ret)
+                clk_disable(sdhci->clk);
+
+        return ret;
+}
+
+static int sdhci_resume(struct device *dev)
+{
+        struct sdhci_host *host = dev_get_drvdata(dev);
+        struct spear_sdhci *sdhci = dev_get_platdata(dev);
+        int ret;
+
+        ret = clk_enable(sdhci->clk);
+        if (ret) {
+                dev_dbg(dev, "Resume: Error enabling clock\n");
+                return ret;
+        }
+
+        return sdhci_resume_host(host);
+}
+
+const struct dev_pm_ops sdhci_pm_ops = {
+        .suspend        = sdhci_suspend,
+        .resume         = sdhci_resume,
+};
+#endif
+
 static struct platform_driver sdhci_driver = {
         .driver = {
                 .name   = "sdhci",
                 .owner  = THIS_MODULE,
+#ifdef CONFIG_PM
+                .pm     = &sdhci_pm_ops,
+#endif
         },
         .probe          = sdhci_probe,
         .remove         = __devexit_p(sdhci_remove),
 };
 
-static int __init sdhci_init(void)
-{
-        return platform_driver_register(&sdhci_driver);
-}
-module_init(sdhci_init);
-
-static void __exit sdhci_exit(void)
-{
-        platform_driver_unregister(&sdhci_driver);
-}
-module_exit(sdhci_exit);
+module_platform_driver(sdhci_driver);
 
 MODULE_DESCRIPTION("SPEAr Secure Digital Host Controller Interface driver");
 MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index e2e18d3f949c..78a36eba4df0 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -324,17 +324,7 @@ static struct platform_driver sdhci_tegra_driver = {
         .remove         = __devexit_p(sdhci_tegra_remove),
 };
 
-static int __init sdhci_tegra_init(void)
-{
-        return platform_driver_register(&sdhci_tegra_driver);
-}
-module_init(sdhci_tegra_init);
-
-static void __exit sdhci_tegra_exit(void)
-{
-        platform_driver_unregister(&sdhci_tegra_driver);
-}
-module_exit(sdhci_tegra_exit);
+module_platform_driver(sdhci_tegra_driver);
 
 MODULE_DESCRIPTION("SDHCI driver for Tegra");
 MODULE_AUTHOR(" Google, Inc.");
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 19ed580f2cab..8d66706824a6 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -49,7 +49,7 @@ static void sdhci_finish_data(struct sdhci_host *);
 
 static void sdhci_send_command(struct sdhci_host *, struct mmc_command *);
 static void sdhci_finish_command(struct sdhci_host *);
-static int sdhci_execute_tuning(struct mmc_host *mmc);
+static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
 static void sdhci_tuning_timer(unsigned long data);
 
 #ifdef CONFIG_PM_RUNTIME
@@ -146,10 +146,8 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable)
 {
         u32 present, irqs;
 
-        if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
-                return;
-
-        if (host->quirks2 & SDHCI_QUIRK2_OWN_CARD_DETECTION)
+        if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||
+            !mmc_card_is_removable(host->mmc))
                 return;
 
         present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
@@ -214,6 +212,11 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
 
         if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET)
                 sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier);
+
+        if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
+                if ((host->ops->enable_dma) && (mask & SDHCI_RESET_ALL))
+                        host->ops->enable_dma(host);
+        }
 }
 
 static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
@@ -423,12 +426,12 @@ static void sdhci_transfer_pio(struct sdhci_host *host)
 static char *sdhci_kmap_atomic(struct scatterlist *sg, unsigned long *flags)
 {
         local_irq_save(*flags);
-        return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+        return kmap_atomic(sg_page(sg)) + sg->offset;
 }
 
 static void sdhci_kunmap_atomic(void *buffer, unsigned long *flags)
 {
-        kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+        kunmap_atomic(buffer);
         local_irq_restore(*flags);
 }
 
@@ -1016,7 +1019,8 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
                 flags |= SDHCI_CMD_INDEX;
 
         /* CMD19 is special in that the Data Present Select should be set */
-        if (cmd->data || (cmd->opcode == MMC_SEND_TUNING_BLOCK))
+        if (cmd->data || cmd->opcode == MMC_SEND_TUNING_BLOCK ||
+            cmd->opcode == MMC_SEND_TUNING_BLOCK_HS200)
                 flags |= SDHCI_CMD_DATA;
 
         sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND);
@@ -1066,12 +1070,15 @@ static void sdhci_finish_command(struct sdhci_host *host)
 static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
 {
         int div = 0; /* Initialized for compiler warning */
+        int real_div = div, clk_mul = 1;
         u16 clk = 0;
         unsigned long timeout;
 
-        if (clock == host->clock)
+        if (clock && clock == host->clock)
                 return;
 
+        host->mmc->actual_clock = 0;
+
         if (host->ops->set_clock) {
                 host->ops->set_clock(host, clock);
                 if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK)
@@ -1109,6 +1116,8 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
                                  * Control register.
                                  */
                                 clk = SDHCI_PROG_CLOCK_MODE;
+                                real_div = div;
+                                clk_mul = host->clk_mul;
                                 div--;
                         }
                 } else {
@@ -1122,6 +1131,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
                                                 break;
                                 }
                         }
+                        real_div = div;
                         div >>= 1;
                 }
         } else {
@@ -1130,9 +1140,13 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
                         if ((host->max_clk / div) <= clock)
                                 break;
                 }
+                real_div = div;
                 div >>= 1;
         }
 
+        if (real_div)
+                host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
+
         clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
         clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
                 << SDHCI_DIVIDER_HI_SHIFT;
@@ -1160,7 +1174,7 @@ out:
         host->clock = clock;
 }
 
-static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
+static int sdhci_set_power(struct sdhci_host *host, unsigned short power)
 {
         u8 pwr = 0;
 
@@ -1183,13 +1197,13 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
         }
 
         if (host->pwr == pwr)
-                return;
+                return -1;
 
         host->pwr = pwr;
 
         if (pwr == 0) {
                 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
-                return;
+                return 0;
         }
 
         /*
@@ -1216,6 +1230,8 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
          */
         if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER)
                 mdelay(10);
+
+        return power;
 }
 
 /*****************************************************************************\
@@ -1277,7 +1293,7 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
                 if ((host->flags & SDHCI_NEEDS_RETUNING) &&
                     !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) {
                         spin_unlock_irqrestore(&host->lock, flags);
-                        sdhci_execute_tuning(mmc);
+                        sdhci_execute_tuning(mmc, mrq->cmd->opcode);
                         spin_lock_irqsave(&host->lock, flags);
 
                         /* Restore original mmc_request structure */
@@ -1297,12 +1313,17 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
 {
         unsigned long flags;
+        int vdd_bit = -1;
         u8 ctrl;
 
         spin_lock_irqsave(&host->lock, flags);
 
-        if (host->flags & SDHCI_DEVICE_DEAD)
-                goto out;
+        if (host->flags & SDHCI_DEVICE_DEAD) {
+                spin_unlock_irqrestore(&host->lock, flags);
+                if (host->vmmc && ios->power_mode == MMC_POWER_OFF)
+                        mmc_regulator_set_ocr(host->mmc, host->vmmc, 0);
+                return;
+        }
 
         /*
          * Reset the chip on each power off.
@@ -1316,9 +1337,15 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
         sdhci_set_clock(host, ios->clock);
 
         if (ios->power_mode == MMC_POWER_OFF)
-                sdhci_set_power(host, -1);
+                vdd_bit = sdhci_set_power(host, -1);
         else
-                sdhci_set_power(host, ios->vdd);
+                vdd_bit = sdhci_set_power(host, ios->vdd);
+
+        if (host->vmmc && vdd_bit != -1) {
+                spin_unlock_irqrestore(&host->lock, flags);
+                mmc_regulator_set_ocr(host->mmc, host->vmmc, vdd_bit);
+                spin_lock_irqsave(&host->lock, flags);
+        }
 
         if (host->ops->platform_send_init_74_clocks)
                 host->ops->platform_send_init_74_clocks(host, ios->power_mode);
@@ -1361,11 +1388,11 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
                 unsigned int clock;
 
                 /* In case of UHS-I modes, set High Speed Enable */
-                if ((ios->timing == MMC_TIMING_UHS_SDR50) ||
+                if ((ios->timing == MMC_TIMING_MMC_HS200) ||
+                    (ios->timing == MMC_TIMING_UHS_SDR50) ||
                     (ios->timing == MMC_TIMING_UHS_SDR104) ||
                     (ios->timing == MMC_TIMING_UHS_DDR50) ||
-                    (ios->timing == MMC_TIMING_UHS_SDR25) ||
-                    (ios->timing == MMC_TIMING_UHS_SDR12))
+                    (ios->timing == MMC_TIMING_UHS_SDR25))
                         ctrl |= SDHCI_CTRL_HISPD;
 
                 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
@@ -1415,7 +1442,9 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
                         ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
                         /* Select Bus Speed Mode for host */
                         ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
-                        if (ios->timing == MMC_TIMING_UHS_SDR12)
+                        if (ios->timing == MMC_TIMING_MMC_HS200)
+                                ctrl_2 |= SDHCI_CTRL_HS_SDR200;
+                        else if (ios->timing == MMC_TIMING_UHS_SDR12)
                                 ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
                         else if (ios->timing == MMC_TIMING_UHS_SDR25)
                                 ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
@@ -1443,7 +1472,6 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
         if(host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
                 sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
 
-out:
         mmiowb();
         spin_unlock_irqrestore(&host->lock, flags);
 }
@@ -1663,7 +1691,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
         return err;
 }
 
-static int sdhci_execute_tuning(struct mmc_host *mmc)
+static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 {
         struct sdhci_host *host;
         u16 ctrl;
@@ -1671,6 +1699,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
         int tuning_loop_counter = MAX_TUNING_LOOP;
         unsigned long timeout;
         int err = 0;
+        bool requires_tuning_nonuhs = false;
 
         host = mmc_priv(mmc);
 
@@ -1681,13 +1710,19 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
         ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
 
         /*
-         * Host Controller needs tuning only in case of SDR104 mode
-         * and for SDR50 mode when Use Tuning for SDR50 is set in
+         * The Host Controller needs tuning only in case of SDR104 mode
+         * and for SDR50 mode when Use Tuning for SDR50 is set in the
          * Capabilities register.
+         * If the Host Controller supports the HS200 mode then the
+         * tuning function has to be executed.
          */
+        if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50) &&
+            (host->flags & SDHCI_SDR50_NEEDS_TUNING ||
+             host->flags & SDHCI_HS200_NEEDS_TUNING))
+                requires_tuning_nonuhs = true;
+
         if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR104) ||
-            (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50) &&
-            (host->flags & SDHCI_SDR50_NEEDS_TUNING)))
+            requires_tuning_nonuhs)
                 ctrl |= SDHCI_CTRL_EXEC_TUNING;
         else {
                 spin_unlock(&host->lock);
@@ -1723,7 +1758,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
                 if (!tuning_loop_counter && !timeout)
                         break;
 
-                cmd.opcode = MMC_SEND_TUNING_BLOCK;
+                cmd.opcode = opcode;
                 cmd.arg = 0;
                 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
                 cmd.retries = 0;
@@ -1738,7 +1773,17 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
                  * block to the Host Controller. So we set the block size
                  * to 64 here.
                  */
-                sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64), SDHCI_BLOCK_SIZE);
+                if (cmd.opcode == MMC_SEND_TUNING_BLOCK_HS200) {
+                        if (mmc->ios.bus_width == MMC_BUS_WIDTH_8)
+                                sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 128),
+                                             SDHCI_BLOCK_SIZE);
+                        else if (mmc->ios.bus_width == MMC_BUS_WIDTH_4)
+                                sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64),
+                                             SDHCI_BLOCK_SIZE);
+                } else {
+                        sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64),
+                                     SDHCI_BLOCK_SIZE);
+                }
 
                 /*
                  * The tuning block is sent by the card to the host controller.
@@ -2121,12 +2166,14 @@ static void sdhci_show_adma_error(struct sdhci_host *host) { }
 
 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
 {
+        u32 command;
         BUG_ON(intmask == 0);
 
         /* CMD19 generates _only_ Buffer Read Ready interrupt */
         if (intmask & SDHCI_INT_DATA_AVAIL) {
-                if (SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) ==
-                    MMC_SEND_TUNING_BLOCK) {
+                command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND));
+                if (command == MMC_SEND_TUNING_BLOCK ||
+                    command == MMC_SEND_TUNING_BLOCK_HS200) {
                         host->tuning_done = 1;
                         wake_up(&host->buf_ready_int);
                         return;
@@ -2330,26 +2377,33 @@ out:
 int sdhci_suspend_host(struct sdhci_host *host)
 {
         int ret;
+        bool has_tuning_timer;
 
         sdhci_disable_card_detection(host);
 
         /* Disable tuning since we are suspending */
-        if (host->version >= SDHCI_SPEC_300 && host->tuning_count &&
-            host->tuning_mode == SDHCI_TUNING_MODE_1) {
+        has_tuning_timer = host->version >= SDHCI_SPEC_300 &&
+                host->tuning_count && host->tuning_mode == SDHCI_TUNING_MODE_1;
+        if (has_tuning_timer) {
+                del_timer_sync(&host->tuning_timer);
                 host->flags &= ~SDHCI_NEEDS_RETUNING;
-                mod_timer(&host->tuning_timer, jiffies +
-                        host->tuning_count * HZ);
         }
 
         ret = mmc_suspend_host(host->mmc);
-        if (ret)
+        if (ret) {
+                if (has_tuning_timer) {
+                        host->flags |= SDHCI_NEEDS_RETUNING;
+                        mod_timer(&host->tuning_timer, jiffies +
+                                        host->tuning_count * HZ);
+                }
+
+                sdhci_enable_card_detection(host);
+
                 return ret;
+        }
 
         free_irq(host->irq, host);
 
-        if (host->vmmc)
-                ret = regulator_disable(host->vmmc);
-
         return ret;
 }
 
@@ -2359,12 +2413,6 @@ int sdhci_resume_host(struct sdhci_host *host)
 {
         int ret;
 
-        if (host->vmmc) {
-                int ret = regulator_enable(host->vmmc);
-                if (ret)
-                        return ret;
-        }
-
         if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
                 if (host->ops->enable_dma)
                         host->ops->enable_dma(host);
@@ -2727,10 +2775,14 @@ int sdhci_add_host(struct sdhci_host *host)
         if (caps[1] & SDHCI_SUPPORT_DDR50)
                 mmc->caps |= MMC_CAP_UHS_DDR50;
 
-        /* Does the host needs tuning for SDR50? */
+        /* Does the host need tuning for SDR50? */
         if (caps[1] & SDHCI_USE_SDR50_TUNING)
                 host->flags |= SDHCI_SDR50_NEEDS_TUNING;
 
+        /* Does the host need tuning for HS200? */
+        if (mmc->caps2 & MMC_CAP2_HS200)
+                host->flags |= SDHCI_HS200_NEEDS_TUNING;
+
         /* Driver Type(s) (A, C, D) supported by the host */
         if (caps[1] & SDHCI_DRIVER_TYPE_A)
                 mmc->caps |= MMC_CAP_DRIVER_TYPE_A;
@@ -2926,8 +2978,6 @@ int sdhci_add_host(struct sdhci_host *host)
         if (IS_ERR(host->vmmc)) {
                 pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
                 host->vmmc = NULL;
-        } else {
-                regulator_enable(host->vmmc);
         }
 
         sdhci_init(host, 0);
@@ -3016,10 +3066,8 @@ void sdhci_remove_host(struct sdhci_host *host, int dead)
         tasklet_kill(&host->card_tasklet);
         tasklet_kill(&host->finish_tasklet);
 
-        if (host->vmmc) {
-                regulator_disable(host->vmmc);
+        if (host->vmmc)
                 regulator_put(host->vmmc);
-        }
 
         kfree(host->adma_desc);
         kfree(host->align_buffer);
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index a04d4d0c6fd2..ad265b96b75b 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -158,6 +158,7 @@
 #define   SDHCI_CTRL_UHS_SDR50          0x0002
 #define   SDHCI_CTRL_UHS_SDR104         0x0003
 #define   SDHCI_CTRL_UHS_DDR50          0x0004
+#define   SDHCI_CTRL_HS_SDR200          0x0005 /* reserved value in SDIO spec */
 #define  SDHCI_CTRL_VDD_180             0x0008
 #define  SDHCI_CTRL_DRV_TYPE_MASK       0x0030
 #define   SDHCI_CTRL_DRV_TYPE_B         0x0000
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index d5505f3fe2a1..4a2c5b2355f2 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -16,6 +16,33 @@
  *
  */
 
+/*
+ * The MMCIF driver is now processing MMC requests asynchronously, according
+ * to the Linux MMC API requirement.
+ *
+ * The MMCIF driver processes MMC requests in up to 3 stages: command, optional
+ * data, and optional stop. To achieve asynchronous processing each of these
+ * stages is split into two halves: a top and a bottom half. The top half
+ * initialises the hardware, installs a timeout handler to handle completion
+ * timeouts, and returns. In case of the command stage this immediately returns
+ * control to the caller, leaving all further processing to run asynchronously.
+ * All further request processing is performed by the bottom halves.
+ *
+ * The bottom half further consists of a "hard" IRQ handler, an IRQ handler
+ * thread, a DMA completion callback, if DMA is used, a timeout work, and
+ * request- and stage-specific handler methods.
+ *
+ * Each bottom half run begins with either a hardware interrupt, a DMA callback
+ * invocation, or a timeout work run. In case of an error or a successful
+ * processing completion, the MMC core is informed and the request processing is
+ * finished. In case processing has to continue, i.e., if data has to be read
+ * from or written to the card, or if a stop command has to be sent, the next
+ * top half is called, which performs the necessary hardware handling and
+ * reschedules the timeout work. This returns the driver state machine into the
+ * bottom half waiting state.
+ */
+
+#include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
@@ -123,6 +150,11 @@
 #define MASK_MRBSYTO            (1 << 1)
 #define MASK_MRSPTO             (1 << 0)
 
+#define MASK_START_CMD          (MASK_MCMDVIO | MASK_MBUFVIO | MASK_MWDATERR | \
+                                 MASK_MRDATERR | MASK_MRIDXERR | MASK_MRSPERR | \
+                                 MASK_MCCSTO | MASK_MCRCSTO | MASK_MWDATTO | \
+                                 MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO)
+
 /* CE_HOST_STS1 */
 #define STS1_CMDSEQ             (1 << 31)
 
@@ -162,9 +194,21 @@ enum mmcif_state {
         STATE_IOS,
 };
 
+enum mmcif_wait_for {
+        MMCIF_WAIT_FOR_REQUEST,
+        MMCIF_WAIT_FOR_CMD,
+        MMCIF_WAIT_FOR_MREAD,
+        MMCIF_WAIT_FOR_MWRITE,
+        MMCIF_WAIT_FOR_READ,
+        MMCIF_WAIT_FOR_WRITE,
+        MMCIF_WAIT_FOR_READ_END,
+        MMCIF_WAIT_FOR_WRITE_END,
+        MMCIF_WAIT_FOR_STOP,
+};
+
 struct sh_mmcif_host {
         struct mmc_host *mmc;
-        struct mmc_data *data;
+        struct mmc_request *mrq;
         struct platform_device *pd;
         struct sh_dmae_slave dma_slave_tx;
         struct sh_dmae_slave dma_slave_rx;
@@ -172,11 +216,17 @@ struct sh_mmcif_host {
         unsigned int clk;
         int bus_width;
         bool sd_error;
+        bool dying;
         long timeout;
         void __iomem *addr;
-        struct completion intr_wait;
+        u32 *pio_ptr;
+        spinlock_t lock;                /* protect sh_mmcif_host::state */
         enum mmcif_state state;
-        spinlock_t lock;
+        enum mmcif_wait_for wait_for;
+        struct delayed_work timeout_work;
+        size_t blocksize;
+        int sg_idx;
+        int sg_blkidx;
         bool power;
         bool card_present;
 
@@ -202,19 +252,21 @@ static inline void sh_mmcif_bitclr(struct sh_mmcif_host *host,
 static void mmcif_dma_complete(void *arg)
 {
         struct sh_mmcif_host *host = arg;
+        struct mmc_data *data = host->mrq->data;
+
         dev_dbg(&host->pd->dev, "Command completed\n");
 
-        if (WARN(!host->data, "%s: NULL data in DMA completion!\n",
+        if (WARN(!data, "%s: NULL data in DMA completion!\n",
                  dev_name(&host->pd->dev)))
                 return;
 
-        if (host->data->flags & MMC_DATA_READ)
+        if (data->flags & MMC_DATA_READ)
                 dma_unmap_sg(host->chan_rx->device->dev,
-                             host->data->sg, host->data->sg_len,
+                             data->sg, data->sg_len,
                              DMA_FROM_DEVICE);
         else
                 dma_unmap_sg(host->chan_tx->device->dev,
-                             host->data->sg, host->data->sg_len,
+                             data->sg, data->sg_len,
                              DMA_TO_DEVICE);
 
         complete(&host->dma_complete);
@@ -222,13 +274,14 @@ static void mmcif_dma_complete(void *arg)
 
 static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
 {
-        struct scatterlist *sg = host->data->sg;
+        struct mmc_data *data = host->mrq->data;
+        struct scatterlist *sg = data->sg;
         struct dma_async_tx_descriptor *desc = NULL;
         struct dma_chan *chan = host->chan_rx;
         dma_cookie_t cookie = -EINVAL;
         int ret;
 
-        ret = dma_map_sg(chan->device->dev, sg, host->data->sg_len,
+        ret = dma_map_sg(chan->device->dev, sg, data->sg_len,
                          DMA_FROM_DEVICE);
         if (ret > 0) {
                 host->dma_active = true;
@@ -244,7 +297,7 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
                 dma_async_issue_pending(chan);
         }
         dev_dbg(&host->pd->dev, "%s(): mapped %d -> %d, cookie %d\n",
-                __func__, host->data->sg_len, ret, cookie);
+                __func__, data->sg_len, ret, cookie);
 
         if (!desc) {
                 /* DMA failed, fall back to PIO */
@@ -265,18 +318,19 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
         }
 
         dev_dbg(&host->pd->dev, "%s(): desc %p, cookie %d, sg[%d]\n", __func__,
-                desc, cookie, host->data->sg_len);
+                desc, cookie, data->sg_len);
 }
 
 static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
 {
-        struct scatterlist *sg = host->data->sg;
+        struct mmc_data *data = host->mrq->data;
+        struct scatterlist *sg = data->sg;
         struct dma_async_tx_descriptor *desc = NULL;
         struct dma_chan *chan = host->chan_tx;
         dma_cookie_t cookie = -EINVAL;
         int ret;
 
-        ret = dma_map_sg(chan->device->dev, sg, host->data->sg_len,
+        ret = dma_map_sg(chan->device->dev, sg, data->sg_len,
                          DMA_TO_DEVICE);
         if (ret > 0) {
                 host->dma_active = true;
@@ -292,7 +346,7 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
                 dma_async_issue_pending(chan);
         }
         dev_dbg(&host->pd->dev, "%s(): mapped %d -> %d, cookie %d\n",
-                __func__, host->data->sg_len, ret, cookie);
+                __func__, data->sg_len, ret, cookie);
 
         if (!desc) {
                 /* DMA failed, fall back to PIO */
@@ -399,7 +453,7 @@ static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
                 sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_SUP_PCLK);
         else
                 sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR &
-                        (ilog2(__rounddown_pow_of_two(host->clk / clk)) << 16));
+                                ((fls(host->clk / clk) - 1) << 16));
 
         sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE);
 }
@@ -421,7 +475,7 @@ static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
 static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
 {
         u32 state1, state2;
-        int ret, timeout = 10000000;
+        int ret, timeout;
 
         host->sd_error = false;
 
@@ -433,155 +487,212 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
         if (state1 & STS1_CMDSEQ) {
                 sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, CMD_CTRL_BREAK);
                 sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, ~CMD_CTRL_BREAK);
-                while (1) {
-                        timeout--;
-                        if (timeout < 0) {
-                                dev_err(&host->pd->dev,
-                                        "Forceed end of command sequence timeout err\n");
-                                return -EIO;
-                        }
+                for (timeout = 10000000; timeout; timeout--) {
                         if (!(sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS1)
-                                                                & STS1_CMDSEQ))
+                              & STS1_CMDSEQ))
                                 break;
                         mdelay(1);
                 }
+                if (!timeout) {
+                        dev_err(&host->pd->dev,
+                                "Forced end of command sequence timeout err\n");
+                        return -EIO;
+                }
                 sh_mmcif_sync_reset(host);
                 dev_dbg(&host->pd->dev, "Forced end of command sequence\n");
                 return -EIO;
         }
 
         if (state2 & STS2_CRC_ERR) {
-                dev_dbg(&host->pd->dev, ": Happened CRC error\n");
+                dev_dbg(&host->pd->dev, ": CRC error\n");
                 ret = -EIO;
         } else if (state2 & STS2_TIMEOUT_ERR) {
-                dev_dbg(&host->pd->dev, ": Happened Timeout error\n");
+                dev_dbg(&host->pd->dev, ": Timeout\n");
                 ret = -ETIMEDOUT;
         } else {
-                dev_dbg(&host->pd->dev, ": Happened End/Index error\n");
+                dev_dbg(&host->pd->dev, ": End/Index error\n");
                 ret = -EIO;
         }
         return ret;
 }
 
-static int sh_mmcif_single_read(struct sh_mmcif_host *host,
-                                        struct mmc_request *mrq)
+static bool sh_mmcif_next_block(struct sh_mmcif_host *host, u32 *p)
 {
-        struct mmc_data *data = mrq->data;
-        long time;
-        u32 blocksize, i, *p = sg_virt(data->sg);
+        struct mmc_data *data = host->mrq->data;
+
+        host->sg_blkidx += host->blocksize;
+
+        /* data->sg->length must be a multiple of host->blocksize? */
+        BUG_ON(host->sg_blkidx > data->sg->length);
+
+        if (host->sg_blkidx == data->sg->length) {
+                host->sg_blkidx = 0;
+                if (++host->sg_idx < data->sg_len)
+                        host->pio_ptr = sg_virt(++data->sg);
+        } else {
+                host->pio_ptr = p;
+        }
+
+        if (host->sg_idx == data->sg_len)
+                return false;
+
+        return true;
+}
+
+static void sh_mmcif_single_read(struct sh_mmcif_host *host,
+                                 struct mmc_request *mrq)
+{
+        host->blocksize = (sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET) &
+                           BLOCK_SIZE_MASK) + 3;
+
+        host->wait_for = MMCIF_WAIT_FOR_READ;
+        schedule_delayed_work(&host->timeout_work, host->timeout);
 
         /* buf read enable */
         sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                        host->timeout);
-        if (time <= 0 || host->sd_error)
-                return sh_mmcif_error_manage(host);
-
-        blocksize = (BLOCK_SIZE_MASK &
-                        sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET)) + 3;
-        for (i = 0; i < blocksize / 4; i++)
+}
+
+static bool sh_mmcif_read_block(struct sh_mmcif_host *host)
+{
+        struct mmc_data *data = host->mrq->data;
+        u32 *p = sg_virt(data->sg);
+        int i;
+
+        if (host->sd_error) {
+                data->error = sh_mmcif_error_manage(host);
+                return false;
+        }
+
+        for (i = 0; i < host->blocksize / 4; i++)
                 *p++ = sh_mmcif_readl(host->addr, MMCIF_CE_DATA);
 
         /* buffer read end */
         sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFRE);
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                        host->timeout);
-        if (time <= 0 || host->sd_error)
-                return sh_mmcif_error_manage(host);
+        host->wait_for = MMCIF_WAIT_FOR_READ_END;
 
-        return 0;
+        return true;
 }
 
-static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
-                                        struct mmc_request *mrq)
+static void sh_mmcif_multi_read(struct sh_mmcif_host *host,
+                                struct mmc_request *mrq)
 {
         struct mmc_data *data = mrq->data;
-        long time;
-        u32 blocksize, i, j, sec, *p;
-
-        blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host->addr,
-                                                     MMCIF_CE_BLOCK_SET);
-        for (j = 0; j < data->sg_len; j++) {
-                p = sg_virt(data->sg);
-                for (sec = 0; sec < data->sg->length / blocksize; sec++) {
-                        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
-                        /* buf read enable */
-                        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                                host->timeout);
-
-                        if (time <= 0 || host->sd_error)
-                                return sh_mmcif_error_manage(host);
-
-                        for (i = 0; i < blocksize / 4; i++)
-                                *p++ = sh_mmcif_readl(host->addr,
-                                                      MMCIF_CE_DATA);
-                }
-                if (j < data->sg_len - 1)
-                        data->sg++;
+
+        if (!data->sg_len || !data->sg->length)
+                return;
+
+        host->blocksize = sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET) &
+                BLOCK_SIZE_MASK;
+
+        host->wait_for = MMCIF_WAIT_FOR_MREAD;
+        host->sg_idx = 0;
+        host->sg_blkidx = 0;
+        host->pio_ptr = sg_virt(data->sg);
+        schedule_delayed_work(&host->timeout_work, host->timeout);
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
+}
+
+static bool sh_mmcif_mread_block(struct sh_mmcif_host *host)
+{
+        struct mmc_data *data = host->mrq->data;
+        u32 *p = host->pio_ptr;
+        int i;
+
+        if (host->sd_error) {
+                data->error = sh_mmcif_error_manage(host);
+                return false;
         }
-        return 0;
+
+        BUG_ON(!data->sg->length);
+
+        for (i = 0; i < host->blocksize / 4; i++)
+                *p++ = sh_mmcif_readl(host->addr, MMCIF_CE_DATA);
+
+        if (!sh_mmcif_next_block(host, p))
+                return false;
+
+        schedule_delayed_work(&host->timeout_work, host->timeout);
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
+
+        return true;
 }
 
-static int sh_mmcif_single_write(struct sh_mmcif_host *host,
+static void sh_mmcif_single_write(struct sh_mmcif_host *host,
                                         struct mmc_request *mrq)
 {
-        struct mmc_data *data = mrq->data;
-        long time;
-        u32 blocksize, i, *p = sg_virt(data->sg);
+        host->blocksize = (sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET) &
+                           BLOCK_SIZE_MASK) + 3;
 
-        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+        host->wait_for = MMCIF_WAIT_FOR_WRITE;
+        schedule_delayed_work(&host->timeout_work, host->timeout);
 
         /* buf write enable */
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                        host->timeout);
-        if (time <= 0 || host->sd_error)
-                return sh_mmcif_error_manage(host);
-
-        blocksize = (BLOCK_SIZE_MASK &
-                        sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET)) + 3;
-        for (i = 0; i < blocksize / 4; i++)
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+}
+
+static bool sh_mmcif_write_block(struct sh_mmcif_host *host)
+{
+        struct mmc_data *data = host->mrq->data;
+        u32 *p = sg_virt(data->sg);
+        int i;
+
+        if (host->sd_error) {
+                data->error = sh_mmcif_error_manage(host);
+                return false;
+        }
+
+        for (i = 0; i < host->blocksize / 4; i++)
                 sh_mmcif_writel(host->addr, MMCIF_CE_DATA, *p++);
 
         /* buffer write end */
         sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MDTRANE);
+        host->wait_for = MMCIF_WAIT_FOR_WRITE_END;
 
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                        host->timeout);
-        if (time <= 0 || host->sd_error)
-                return sh_mmcif_error_manage(host);
-
-        return 0;
+        return true;
 }
 
-static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
-                                                struct mmc_request *mrq)
+static void sh_mmcif_multi_write(struct sh_mmcif_host *host,
+                                struct mmc_request *mrq)
 {
         struct mmc_data *data = mrq->data;
-        long time;
-        u32 i, sec, j, blocksize, *p;
 
-        blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host->addr,
-                                                     MMCIF_CE_BLOCK_SET);
+        if (!data->sg_len || !data->sg->length)
+                return;
 
-        for (j = 0; j < data->sg_len; j++) {
-                p = sg_virt(data->sg);
-                for (sec = 0; sec < data->sg->length / blocksize; sec++) {
-                        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
-                        /* buf write enable*/
-                        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                                host->timeout);
+        host->blocksize = sh_mmcif_readl(host->addr, MMCIF_CE_BLOCK_SET) &
+                BLOCK_SIZE_MASK;
 
-                        if (time <= 0 || host->sd_error)
-                                return sh_mmcif_error_manage(host);
+        host->wait_for = MMCIF_WAIT_FOR_MWRITE;
+        host->sg_idx = 0;
+        host->sg_blkidx = 0;
+        host->pio_ptr = sg_virt(data->sg);
+        schedule_delayed_work(&host->timeout_work, host->timeout);
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+}
 
-                        for (i = 0; i < blocksize / 4; i++)
-                                sh_mmcif_writel(host->addr,
-                                                MMCIF_CE_DATA, *p++);
-                }
-                if (j < data->sg_len - 1)
-                        data->sg++;
+static bool sh_mmcif_mwrite_block(struct sh_mmcif_host *host)
+{
+        struct mmc_data *data = host->mrq->data;
+        u32 *p = host->pio_ptr;
+        int i;
+
+        if (host->sd_error) {
+                data->error = sh_mmcif_error_manage(host);
+                return false;
         }
-        return 0;
+
+        BUG_ON(!data->sg->length);
+
+        for (i = 0; i < host->blocksize / 4; i++)
+                sh_mmcif_writel(host->addr, MMCIF_CE_DATA, *p++);
+
+        if (!sh_mmcif_next_block(host, p))
+                return false;
+
+        schedule_delayed_work(&host->timeout_work, host->timeout);
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+
+        return true;
 }
 
 static void sh_mmcif_get_response(struct sh_mmcif_host *host,
@@ -603,8 +714,11 @@ static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
 }
 
 static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
-                struct mmc_request *mrq, struct mmc_command *cmd, u32 opc)
+                            struct mmc_request *mrq)
 {
+        struct mmc_data *data = mrq->data;
+        struct mmc_command *cmd = mrq->cmd;
+        u32 opc = cmd->opcode;
         u32 tmp = 0;
 
         /* Response Type check */
@@ -636,7 +750,7 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
                 break;
         }
         /* WDAT / DATW */
-        if (host->data) {
+        if (data) {
                 tmp |= CMD_SET_WDAT;
                 switch (host->bus_width) {
                 case MMC_BUS_WIDTH_1:
@@ -660,7 +774,7 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
         if (opc == MMC_READ_MULTIPLE_BLOCK || opc == MMC_WRITE_MULTIPLE_BLOCK) {
                 tmp |= CMD_SET_CMLTE | CMD_SET_CMD12EN;
                 sh_mmcif_bitset(host, MMCIF_CE_BLOCK_SET,
-                                        mrq->data->blocks << 16);
+                                data->blocks << 16);
         }
         /* RIDXC[1:0] check bits */
         if (opc == MMC_SEND_OP_COND || opc == MMC_ALL_SEND_CID ||
@@ -674,68 +788,60 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
                 opc == MMC_SEND_CSD || opc == MMC_SEND_CID)
                 tmp |= CMD_SET_CRC7C_INTERNAL;
 
-        return opc = ((opc << 24) | tmp);
+        return (opc << 24) | tmp;
 }
 
 static int sh_mmcif_data_trans(struct sh_mmcif_host *host,
-                                struct mmc_request *mrq, u32 opc)
+                               struct mmc_request *mrq, u32 opc)
 {
-        int ret;
-
         switch (opc) {
         case MMC_READ_MULTIPLE_BLOCK:
-                ret = sh_mmcif_multi_read(host, mrq);
-                break;
+                sh_mmcif_multi_read(host, mrq);
+                return 0;
         case MMC_WRITE_MULTIPLE_BLOCK:
-                ret = sh_mmcif_multi_write(host, mrq);
-                break;
+                sh_mmcif_multi_write(host, mrq);
+                return 0;
         case MMC_WRITE_BLOCK:
-                ret = sh_mmcif_single_write(host, mrq);
-                break;
+                sh_mmcif_single_write(host, mrq);
+                return 0;
         case MMC_READ_SINGLE_BLOCK:
         case MMC_SEND_EXT_CSD:
-                ret = sh_mmcif_single_read(host, mrq);
-                break;
+                sh_mmcif_single_read(host, mrq);
+                return 0;
         default:
                 dev_err(&host->pd->dev, "UNSUPPORTED CMD = d'%08d\n", opc);
-                ret = -EINVAL;
-                break;
+                return -EINVAL;
         }
-        return ret;
 }
 
 static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
-                        struct mmc_request *mrq, struct mmc_command *cmd)
+                               struct mmc_request *mrq)
 {
-        long time;
-        int ret = 0, mask = 0;
+        struct mmc_command *cmd = mrq->cmd;
         u32 opc = cmd->opcode;
+        u32 mask;
 
         switch (opc) {
-        /* respons busy check */
+        /* response busy check */
         case MMC_SWITCH:
         case MMC_STOP_TRANSMISSION:
         case MMC_SET_WRITE_PROT:
         case MMC_CLR_WRITE_PROT:
         case MMC_ERASE:
         case MMC_GEN_CMD:
-                mask = MASK_MRBSYE;
+                mask = MASK_START_CMD | MASK_MRBSYE;
                 break;
         default:
-                mask = MASK_MCRSPE;
+                mask = MASK_START_CMD | MASK_MCRSPE;
                 break;
         }
-        mask |= MASK_MCMDVIO | MASK_MBUFVIO | MASK_MWDATERR |
-                MASK_MRDATERR | MASK_MRIDXERR | MASK_MRSPERR |
-                MASK_MCCSTO | MASK_MCRCSTO | MASK_MWDATTO |
-                MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO;
 
-        if (host->data) {
+        if (mrq->data) {
                 sh_mmcif_writel(host->addr, MMCIF_CE_BLOCK_SET, 0);
                 sh_mmcif_writel(host->addr, MMCIF_CE_BLOCK_SET,
                                 mrq->data->blksz);
         }
-        opc = sh_mmcif_set_cmd(host, mrq, cmd, opc);
+        opc = sh_mmcif_set_cmd(host, mrq);
 
         sh_mmcif_writel(host->addr, MMCIF_CE_INT, 0xD80430C0);
         sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, mask);
@@ -744,80 +850,28 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
         /* set cmd */
         sh_mmcif_writel(host->addr, MMCIF_CE_CMD_SET, opc);
 
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                host->timeout);
-        if (time <= 0) {
-                cmd->error = sh_mmcif_error_manage(host);
-                return;
-        }
-        if (host->sd_error) {
-                switch (cmd->opcode) {
-                case MMC_ALL_SEND_CID:
-                case MMC_SELECT_CARD:
-                case MMC_APP_CMD:
-                        cmd->error = -ETIMEDOUT;
-                        break;
-                default:
-                        dev_dbg(&host->pd->dev, "Cmd(d'%d) err\n",
-                                        cmd->opcode);
-                        cmd->error = sh_mmcif_error_manage(host);
-                        break;
-                }
-                host->sd_error = false;
-                return;
-        }
-        if (!(cmd->flags & MMC_RSP_PRESENT)) {
-                cmd->error = 0;
-                return;
-        }
-        sh_mmcif_get_response(host, cmd);
-        if (host->data) {
-                if (!host->dma_active) {
-                        ret = sh_mmcif_data_trans(host, mrq, cmd->opcode);
-                } else {
-                        long time =
-                                wait_for_completion_interruptible_timeout(&host->dma_complete,
-                                                                          host->timeout);
-                        if (!time)
-                                ret = -ETIMEDOUT;
-                        else if (time < 0)
-                                ret = time;
-                        sh_mmcif_bitclr(host, MMCIF_CE_BUF_ACC,
-                                        BUF_ACC_DMAREN | BUF_ACC_DMAWEN);
-                        host->dma_active = false;
-                }
-                if (ret < 0)
-                        mrq->data->bytes_xfered = 0;
-                else
-                        mrq->data->bytes_xfered =
-                                mrq->data->blocks * mrq->data->blksz;
-        }
-        cmd->error = ret;
+        host->wait_for = MMCIF_WAIT_FOR_CMD;
+        schedule_delayed_work(&host->timeout_work, host->timeout);
 }
 
 static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
-                struct mmc_request *mrq, struct mmc_command *cmd)
+                              struct mmc_request *mrq)
 {
-        long time;
-
-        if (mrq->cmd->opcode == MMC_READ_MULTIPLE_BLOCK)
+        switch (mrq->cmd->opcode) {
+        case MMC_READ_MULTIPLE_BLOCK:
                 sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12DRE);
-        else if (mrq->cmd->opcode == MMC_WRITE_MULTIPLE_BLOCK)
+                break;
+        case MMC_WRITE_MULTIPLE_BLOCK:
                 sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
-        else {
+                break;
+        default:
                 dev_err(&host->pd->dev, "unsupported stop cmd\n");
-                cmd->error = sh_mmcif_error_manage(host);
+                mrq->stop->error = sh_mmcif_error_manage(host);
                 return;
         }
 
-        time = wait_for_completion_interruptible_timeout(&host->intr_wait,
-                        host->timeout);
-        if (time <= 0 || host->sd_error) {
-                cmd->error = sh_mmcif_error_manage(host);
-                return;
-        }
-        sh_mmcif_get_cmd12response(host, cmd);
-        cmd->error = 0;
+        host->wait_for = MMCIF_WAIT_FOR_STOP;
+        schedule_delayed_work(&host->timeout_work, host->timeout);
 }
 
 static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
@@ -856,23 +910,10 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
         default:
                 break;
         }
-        host->data = mrq->data;
-        if (mrq->data) {
-                if (mrq->data->flags & MMC_DATA_READ) {
-                        if (host->chan_rx)
-                                sh_mmcif_start_dma_rx(host);
-                } else {
-                        if (host->chan_tx)
-                                sh_mmcif_start_dma_tx(host);
-                }
-        }
-        sh_mmcif_start_cmd(host, mrq, mrq->cmd);
-        host->data = NULL;
 
-        if (!mrq->cmd->error && mrq->stop)
-                sh_mmcif_stop_cmd(host, mrq, mrq->stop);
-        host->state = STATE_IDLE;
-        mmc_request_done(mmc, mrq);
+        host->mrq = mrq;
+
+        sh_mmcif_start_cmd(host, mrq);
 }
 
 static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
@@ -947,9 +988,156 @@ static struct mmc_host_ops sh_mmcif_ops = {
         .get_cd         = sh_mmcif_get_cd,
 };
 
-static void sh_mmcif_detect(struct mmc_host *mmc)
+static bool sh_mmcif_end_cmd(struct sh_mmcif_host *host)
 {
-        mmc_detect_change(mmc, 0);
+        struct mmc_command *cmd = host->mrq->cmd;
+        struct mmc_data *data = host->mrq->data;
+        long time;
+
+        if (host->sd_error) {
+                switch (cmd->opcode) {
+                case MMC_ALL_SEND_CID:
+                case MMC_SELECT_CARD:
+                case MMC_APP_CMD:
+                        cmd->error = -ETIMEDOUT;
+                        host->sd_error = false;
+                        break;
+                default:
+                        cmd->error = sh_mmcif_error_manage(host);
+                        dev_dbg(&host->pd->dev, "Cmd(d'%d) error %d\n",
+                                cmd->opcode, cmd->error);
+                        break;
+                }
+                return false;
+        }
+        if (!(cmd->flags & MMC_RSP_PRESENT)) {
+                cmd->error = 0;
+                return false;
+        }
+
+        sh_mmcif_get_response(host, cmd);
+
+        if (!data)
+                return false;
+
+        if (data->flags & MMC_DATA_READ) {
+                if (host->chan_rx)
+                        sh_mmcif_start_dma_rx(host);
+        } else {
+                if (host->chan_tx)
+                        sh_mmcif_start_dma_tx(host);
+        }
+
+        if (!host->dma_active) {
+                data->error = sh_mmcif_data_trans(host, host->mrq, cmd->opcode);
+                if (!data->error)
+                        return true;
+                return false;
+        }
+
+        /* Running in the IRQ thread, can sleep */
+        time = wait_for_completion_interruptible_timeout(&host->dma_complete,
+                                                         host->timeout);
+        if (host->sd_error) {
+                dev_err(host->mmc->parent,
+                        "Error IRQ while waiting for DMA completion!\n");
+                /* Woken up by an error IRQ: abort DMA */
+                if (data->flags & MMC_DATA_READ)
+                        dmaengine_terminate_all(host->chan_rx);
+                else
+                        dmaengine_terminate_all(host->chan_tx);
+                data->error = sh_mmcif_error_manage(host);
+        } else if (!time) {
+                data->error = -ETIMEDOUT;
+        } else if (time < 0) {
+                data->error = time;
+        }
+        sh_mmcif_bitclr(host, MMCIF_CE_BUF_ACC,
+                        BUF_ACC_DMAREN | BUF_ACC_DMAWEN);
+        host->dma_active = false;
+
+        if (data->error)
+                data->bytes_xfered = 0;
+
+        return false;
+}
+
+static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
+{
+        struct sh_mmcif_host *host = dev_id;
+        struct mmc_request *mrq = host->mrq;
+        struct mmc_data *data = mrq->data;
+
+        cancel_delayed_work_sync(&host->timeout_work);
+
+        /*
+         * All handlers return true, if processing continues, and false, if the
+         * request has to be completed - successfully or not
+         */
+        switch (host->wait_for) {
+        case MMCIF_WAIT_FOR_REQUEST:
+                /* We're too late, the timeout has already kicked in */
+                return IRQ_HANDLED;
+        case MMCIF_WAIT_FOR_CMD:
+                if (sh_mmcif_end_cmd(host))
+                        /* Wait for data */
+                        return IRQ_HANDLED;
+                break;
+        case MMCIF_WAIT_FOR_MREAD:
+                if (sh_mmcif_mread_block(host))
+                        /* Wait for more data */
+                        return IRQ_HANDLED;
+                break;
+        case MMCIF_WAIT_FOR_READ:
+                if (sh_mmcif_read_block(host))
+                        /* Wait for data end */
+                        return IRQ_HANDLED;
+                break;
+        case MMCIF_WAIT_FOR_MWRITE:
+                if (sh_mmcif_mwrite_block(host))
+                        /* Wait data to write */
+                        return IRQ_HANDLED;
+                break;
+        case MMCIF_WAIT_FOR_WRITE:
+                if (sh_mmcif_write_block(host))
+                        /* Wait for data end */
+                        return IRQ_HANDLED;
+                break;
+        case MMCIF_WAIT_FOR_STOP:
+                if (host->sd_error) {
+                        mrq->stop->error = sh_mmcif_error_manage(host);
+                        break;
+                }
+                sh_mmcif_get_cmd12response(host, mrq->stop);
+                mrq->stop->error = 0;
+                break;
+        case MMCIF_WAIT_FOR_READ_END:
+        case MMCIF_WAIT_FOR_WRITE_END:
+                if (host->sd_error)
+                        data->error = sh_mmcif_error_manage(host);
+                break;
+        default:
+                BUG();
+        }
+
+        if (host->wait_for != MMCIF_WAIT_FOR_STOP) {
+                if (!mrq->cmd->error && data && !data->error)
+                        data->bytes_xfered =
+                                data->blocks * data->blksz;
+
+                if (mrq->stop && !mrq->cmd->error && (!data || !data->error)) {
+                        sh_mmcif_stop_cmd(host, mrq);
+                        if (!mrq->stop->error)
+                                return IRQ_HANDLED;
+                }
+        }
+
+        host->wait_for = MMCIF_WAIT_FOR_REQUEST;
+        host->state = STATE_IDLE;
+        host->mrq = NULL;
+        mmc_request_done(host->mmc, mrq);
+
+        return IRQ_HANDLED;
 }
 
 static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
@@ -960,7 +1148,12 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
 
         state = sh_mmcif_readl(host->addr, MMCIF_CE_INT);
 
-        if (state & INT_RBSYE) {
+        if (state & INT_ERR_STS) {
+                /* error interrupts - process first */
+                sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
+                err = 1;
+        } else if (state & INT_RBSYE) {
                 sh_mmcif_writel(host->addr, MMCIF_CE_INT,
                                 ~(INT_RBSYE | INT_CRSPE));
                 sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MRBSYE);
@@ -988,11 +1181,6 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
                 sh_mmcif_writel(host->addr, MMCIF_CE_INT,
                                 ~(INT_CMD12RBE | INT_CMD12CRE));
                 sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
-        } else if (state & INT_ERR_STS) {
-                /* err interrupts */
-                sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
-                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
-                err = 1;
         } else {
                 dev_dbg(&host->pd->dev, "Unsupported interrupt: 0x%x\n", state);
                 sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
@@ -1003,14 +1191,57 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
                 host->sd_error = true;
                 dev_dbg(&host->pd->dev, "int err state = %08x\n", state);
         }
-        if (state & ~(INT_CMD12RBE | INT_CMD12CRE))
-                complete(&host->intr_wait);
-        else
+        if (state & ~(INT_CMD12RBE | INT_CMD12CRE)) {
+                if (!host->dma_active)
+                        return IRQ_WAKE_THREAD;
+                else if (host->sd_error)
+                        mmcif_dma_complete(host);
+        } else {
                 dev_dbg(&host->pd->dev, "Unexpected IRQ 0x%x\n", state);
+        }
 
         return IRQ_HANDLED;
 }
 
+static void mmcif_timeout_work(struct work_struct *work)
+{
+        struct delayed_work *d = container_of(work, struct delayed_work, work);
+        struct sh_mmcif_host *host = container_of(d, struct sh_mmcif_host, timeout_work);
+        struct mmc_request *mrq = host->mrq;
+
+        if (host->dying)
+                /* Don't run after mmc_remove_host() */
+                return;
+
+        /*
+         * Handle races with cancel_delayed_work(), unless
+         * cancel_delayed_work_sync() is used
+         */
+        switch (host->wait_for) {
+        case MMCIF_WAIT_FOR_CMD:
+                mrq->cmd->error = sh_mmcif_error_manage(host);
+                break;
+        case MMCIF_WAIT_FOR_STOP:
+                mrq->stop->error = sh_mmcif_error_manage(host);
+                break;
+        case MMCIF_WAIT_FOR_MREAD:
+        case MMCIF_WAIT_FOR_MWRITE:
+        case MMCIF_WAIT_FOR_READ:
+        case MMCIF_WAIT_FOR_WRITE:
+        case MMCIF_WAIT_FOR_READ_END:
+        case MMCIF_WAIT_FOR_WRITE_END:
+                mrq->data->error = sh_mmcif_error_manage(host);
+                break;
+        default:
+                BUG();
+        }
+
+        host->state = STATE_IDLE;
+        host->wait_for = MMCIF_WAIT_FOR_REQUEST;
+        host->mrq = NULL;
+        mmc_request_done(host->mmc, mrq);
+}
+
 static int __devinit sh_mmcif_probe(struct platform_device *pdev)
 {
         int ret = 0, irq[2];
@@ -1064,7 +1295,6 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
         host->clk = clk_get_rate(host->hclk);
         host->pd = pdev;
 
-        init_completion(&host->intr_wait);
         spin_lock_init(&host->lock);
 
         mmc->ops = &sh_mmcif_ops;
@@ -1101,19 +1331,21 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
 
         sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
-        ret = request_irq(irq[0], sh_mmcif_intr, 0, "sh_mmc:error", host);
+        ret = request_threaded_irq(irq[0], sh_mmcif_intr, sh_mmcif_irqt, 0, "sh_mmc:error", host);
         if (ret) {
                 dev_err(&pdev->dev, "request_irq error (sh_mmc:error)\n");
                 goto clean_up3;
         }
-        ret = request_irq(irq[1], sh_mmcif_intr, 0, "sh_mmc:int", host);
+        ret = request_threaded_irq(irq[1], sh_mmcif_intr, sh_mmcif_irqt, 0, "sh_mmc:int", host);
         if (ret) {
                 free_irq(irq[0], host);
                 dev_err(&pdev->dev, "request_irq error (sh_mmc:int)\n");
                 goto clean_up3;
         }
 
-        sh_mmcif_detect(host->mmc);
+        INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
+
+        mmc_detect_change(host->mmc, 0);
 
         dev_info(&pdev->dev, "driver version %s\n", DRIVER_VERSION);
         dev_dbg(&pdev->dev, "chip ver H'%04x\n",
@@ -1139,11 +1371,19 @@ static int __devexit sh_mmcif_remove(struct platform_device *pdev)
         struct sh_mmcif_host *host = platform_get_drvdata(pdev);
         int irq[2];
 
+        host->dying = true;
         pm_runtime_get_sync(&pdev->dev);
 
         mmc_remove_host(host->mmc);
         sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
+        /*
+         * FIXME: cancel_delayed_work(_sync)() and free_irq() race with the
+         * mmc_remove_host() call above. But swapping order doesn't help either
+         * (a query on the linux-mmc mailing list didn't bring any replies).
+         */
+        cancel_delayed_work_sync(&host->timeout_work);
+
         if (host->addr)
                 iounmap(host->addr);
 
@@ -1206,19 +1446,7 @@ static struct platform_driver sh_mmcif_driver = {
         },
 };
 
-static int __init sh_mmcif_init(void)
-{
-        return platform_driver_register(&sh_mmcif_driver);
-}
-
-static void __exit sh_mmcif_exit(void)
-{
-        platform_driver_unregister(&sh_mmcif_driver);
-}
-
-module_init(sh_mmcif_init);
-module_exit(sh_mmcif_exit);
-
+module_platform_driver(sh_mmcif_driver);
 
 MODULE_DESCRIPTION("SuperH on-chip MMC/eMMC interface driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 41ae6466bd83..58da3c44acc5 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -282,18 +282,7 @@ static struct platform_driver sh_mobile_sdhi_driver = {
         .remove         = __devexit_p(sh_mobile_sdhi_remove),
 };
 
-static int __init sh_mobile_sdhi_init(void)
-{
-        return platform_driver_register(&sh_mobile_sdhi_driver);
-}
-
-static void __exit sh_mobile_sdhi_exit(void)
-{
-        platform_driver_unregister(&sh_mobile_sdhi_driver);
-}
-
-module_init(sh_mobile_sdhi_init);
-module_exit(sh_mobile_sdhi_exit);
+module_platform_driver(sh_mobile_sdhi_driver);
 
 MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
 MODULE_AUTHOR("Magnus Damm");
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index f70d04664cac..fc00081687b9 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -118,7 +118,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
         unsigned char *buf;
         unsigned int pos = 0, val;
 
-        buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off;
+        buf = kmap_atomic(pg) + off;
         if (host->cmd_flags & DATA_CARRY) {
                 buf[pos++] = host->bounce_buf_data[0];
                 host->cmd_flags &= ~DATA_CARRY;
@@ -134,7 +134,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
                 }
                 buf[pos++] = (val >> 8) & 0xff;
         }
-        kunmap_atomic(buf - off, KM_BIO_DST_IRQ);
+        kunmap_atomic(buf - off);
 }
 
 static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
@@ -144,7 +144,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
         unsigned char *buf;
         unsigned int pos = 0, val;
 
-        buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off;
+        buf = kmap_atomic(pg) + off;
         if (host->cmd_flags & DATA_CARRY) {
                 val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00);
                 writel(val, sock->addr + SOCK_MMCSD_DATA);
@@ -161,7 +161,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
                 val |= (buf[pos++] << 8) & 0xff00;
                 writel(val, sock->addr + SOCK_MMCSD_DATA);
         }
-        kunmap_atomic(buf - off, KM_BIO_SRC_IRQ);
+        kunmap_atomic(buf - off);
 }
 
 static void tifm_sd_transfer_data(struct tifm_sd *host)
@@ -212,13 +212,13 @@ static void tifm_sd_copy_page(struct page *dst, unsigned int dst_off,
                               struct page *src, unsigned int src_off,
                               unsigned int count)
 {
-        unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off;
-        unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off;
+        unsigned char *src_buf = kmap_atomic(src) + src_off;
+        unsigned char *dst_buf = kmap_atomic(dst) + dst_off;
 
         memcpy(dst_buf, src_buf, count);
 
-        kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ);
-        kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ);
+        kunmap_atomic(dst_buf - dst_off);
+        kunmap_atomic(src_buf - src_off);
 }
 
 static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index a4ea10242787..113ce6c9cf32 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -138,19 +138,7 @@ static struct platform_driver tmio_mmc_driver = {
         .resume = tmio_mmc_resume,
 };
 
-
-static int __init tmio_mmc_init(void)
-{
-        return platform_driver_register(&tmio_mmc_driver);
-}
-
-static void __exit tmio_mmc_exit(void)
-{
-        platform_driver_unregister(&tmio_mmc_driver);
-}
-
-module_init(tmio_mmc_init);
-module_exit(tmio_mmc_exit);
+module_platform_driver(tmio_mmc_driver);
 
 MODULE_DESCRIPTION("Toshiba TMIO SD/MMC driver");
 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 3020f98218f0..a95e6d901726 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -105,13 +105,13 @@ static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
                                          unsigned long *flags)
 {
         local_irq_save(*flags);
-        return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+        return kmap_atomic(sg_page(sg)) + sg->offset;
 }
 
 static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg,
                                           unsigned long *flags, void *virt)
 {
-        kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ);
+        kunmap_atomic(virt - sg->offset);
         local_irq_restore(*flags);
 }
 
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index 4208b3958069..abad01b37cfb 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -800,8 +800,7 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         } else if (ios->power_mode != MMC_POWER_UP) {
                 if (host->set_pwr && ios->power_mode == MMC_POWER_OFF)
                         host->set_pwr(host->pdev, 0);
-                if ((pdata->flags & TMIO_MMC_HAS_COLD_CD) &&
-                    pdata->power) {
+                if (pdata->power) {
                         pdata->power = false;
                         pm_runtime_put(&host->pdev->dev);
                 }
@@ -915,6 +914,23 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
         if (ret < 0)
                 goto pm_disable;
 
+        /*
+         * There are 4 different scenarios for the card detection:
+         *  1) an external gpio irq handles the cd (best for power savings)
+         *  2) internal sdhi irq handles the cd
+         *  3) a worker thread polls the sdhi - indicated by MMC_CAP_NEEDS_POLL
+         *  4) the medium is non-removable - indicated by MMC_CAP_NONREMOVABLE
+         *
+         *  While we increment the rtpm counter for all scenarios when the mmc
+         *  core activates us by calling an appropriate set_ios(), we must
+         *  additionally ensure that in case 2) the tmio mmc hardware stays
+         *  powered on during runtime for the card detection to work.
+         */
+        if (!(pdata->flags & TMIO_MMC_HAS_COLD_CD
+                || mmc->caps & MMC_CAP_NEEDS_POLL
+                || mmc->caps & MMC_CAP_NONREMOVABLE))
+                pm_runtime_get_noresume(&pdev->dev);
+
         tmio_mmc_clk_stop(_host);
         tmio_mmc_reset(_host);
 
@@ -933,12 +949,6 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
         /* See if we also get DMA */
         tmio_mmc_request_dma(_host, pdata);
 
-        /* We have to keep the device powered for its card detection to work */
-        if (!(pdata->flags & TMIO_MMC_HAS_COLD_CD)) {
-                pdata->power = true;
-                pm_runtime_get_noresume(&pdev->dev);
-        }
-
         mmc_add_host(mmc);
 
         /* Unmask the IRQs we want to know about */
@@ -974,7 +984,9 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
          * the controller, the runtime PM is suspended and pdata->power == false,
          * so, our .runtime_resume() will not try to detect a card in the slot.
          */
-        if (host->pdata->flags & TMIO_MMC_HAS_COLD_CD)
+        if (host->pdata->flags & TMIO_MMC_HAS_COLD_CD
+                || host->mmc->caps & MMC_CAP_NEEDS_POLL
+                || host->mmc->caps & MMC_CAP_NONREMOVABLE)
                 pm_runtime_get_sync(&pdev->dev);
 
         mmc_remove_host(host->mmc);