Merge tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:

Core:
 * Support for MMC 4.5 Data Tag feature -- we tag REQ_META, so devices
   that support Data Tag will provide increased throughput for metadata.
 * Faster detection of card removal on I/O errors.

Drivers:
 * dw_mmc now supports eMMC Power Off Notify, has PCI support, and
   implements pre_req and post_req for asynchronous requests.
 * omap_hsmmc now supports device tree.
 * esdhc now has power management support.
 * sdhci-tegra now supports Tegra30 devices.
 * sdhci-spear now supports hibernation.
 * tmio_mmc now supports using a GPIO for card detection.
 * Intel PCH now supports 8-bit bus transfers.

* tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (53 commits)
  mmc: sh_mmcif: simplify bitmask macros
  mmc: sh_mobile_sdhi: support modular mmc-core with non-standard hotplug
  mmc: sh_mobile_sdhi: add a callback for board specific init code
  mmc: tmio: cosmetic: prettify the tmio_mmc_set_ios() function
  mmc: sh_mobile_sdhi: do not manage PM clocks manually
  mmc: tmio_mmc: remove unused sdio_irq_enabled flag
  mmc: tmio_mmc: power status flag doesn't have to be exposed in platform data
  mmc: sh_mobile_sdhi: pass card hotplug GPIO number to TMIO MMC
  mmc: tmio_mmc: support the generic MMC GPIO card hotplug helper
  mmc: tmio: calculate the native hotplug condition only once
  mmc: simplify mmc_cd_gpio_request() by removing two parameters
  mmc: sdhci-pci: allow 8-bit bus width for Intel PCH
  mmc: sdhci: check interrupt flags in ISR again
  mmc: sdhci-pci: Add MSI support
  mmc: core: warn when card doesn't support HPI
  mmc: davinci: Poll status for small size transfers
  mmc: davinci: Eliminate spurious interrupts
  mmc: omap_hsmmc: Avoid a regulator voltage change with dt
  mmc: omap_hsmmc: Convert hsmmc driver to use device tree
  mmc: sdhci-pci: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for Medfield SDIO
  ...

10 files changed, 62 insertions, 66 deletions

diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 0dc98044d8b7..f5171dbf8850 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -1,8 +1,10 @@
 #ifndef MFD_TMIO_H
 #define MFD_TMIO_H
 
+#include <linux/device.h>
 #include <linux/fb.h>
 #include <linux/io.h>
+#include <linux/jiffies.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
@@ -64,8 +66,8 @@
 #define TMIO_MMC_SDIO_IRQ               (1 << 2)
 /*
  * Some platforms can detect card insertion events with controller powered
- * down, in which case they have to call tmio_mmc_cd_wakeup() to power up the
- * controller and report the event to the driver.
+ * down, using a GPIO IRQ, in which case they have to fill in cd_irq, cd_gpio,
+ * and cd_flags fields of struct tmio_mmc_data.
  */
 #define TMIO_MMC_HAS_COLD_CD            (1 << 3)
 /*
@@ -73,6 +75,12 @@
  * idle before writing to some registers.
  */
 #define TMIO_MMC_HAS_IDLE_WAIT          (1 << 4)
+/*
+ * A GPIO is used for card hotplug detection. We need an extra flag for this,
+ * because 0 is a valid GPIO number too, and requiring users to specify
+ * cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility.
+ */
+#define TMIO_MMC_USE_GPIO_CD            (1 << 5)
 
 int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
 int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
@@ -97,19 +105,23 @@ struct tmio_mmc_data {
         u32                             ocr_mask;       /* available voltages */
         struct tmio_mmc_dma             *dma;
         struct device                   *dev;
-        bool                            power;
+        unsigned int                    cd_gpio;
         void (*set_pwr)(struct platform_device *host, int state);
         void (*set_clk_div)(struct platform_device *host, int state);
         int (*get_cd)(struct platform_device *host);
         int (*write16_hook)(struct tmio_mmc_host *host, int addr);
 };
 
+/*
+ * This function is deprecated and will be removed soon. Please, convert your
+ * platform to use drivers/mmc/core/cd-gpio.c
+ */
+#include <linux/mmc/host.h>
 static inline void tmio_mmc_cd_wakeup(struct tmio_mmc_data *pdata)
 {
-        if (pdata && !pdata->power) {
-                pdata->power = true;
-                pm_runtime_get(pdata->dev);
-        }
+        if (pdata)
+                mmc_detect_change(dev_get_drvdata(pdata->dev),
+                                  msecs_to_jiffies(100));
 }
 
 /*
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 6faa145c81e3..01beae78f079 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -72,6 +72,8 @@ struct mmc_ext_csd {
         bool                    hpi_en;                 /* HPI enablebit */
         bool                    hpi;                    /* HPI support bit */
         unsigned int            hpi_cmd;                /* cmd used as HPI */
+        unsigned int            data_sector_size;       /* 512 bytes or 4KB */
+        unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
         unsigned int            boot_ro_lock;           /* ro lock support */
         bool                    boot_ro_lockable;
         u8                      raw_partition_support;  /* 160 */
diff --git a/include/linux/mmc/cd-gpio.h b/include/linux/mmc/cd-gpio.h
index a8e469783318..cefaba038ccb 100644
--- a/include/linux/mmc/cd-gpio.h
+++ b/include/linux/mmc/cd-gpio.h
@@ -12,8 +12,7 @@
 #define MMC_CD_GPIO_H
 
 struct mmc_host;
-int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
-                        unsigned int irq, unsigned long flags);
+int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio);
 void mmc_cd_gpio_free(struct mmc_host *host);
 
 #endif
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 2e6a681fceb2..1b431c728b9a 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -175,7 +175,6 @@ extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int);
 
 extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
 extern void mmc_release_host(struct mmc_host *host);
-extern void mmc_do_release_host(struct mmc_host *host);
 extern int mmc_try_claim_host(struct mmc_host *host);
 
 extern int mmc_flush_cache(struct mmc_card *);
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index aae5d1f1bb39..8f66e28f5a0f 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -76,7 +76,7 @@ struct mmc_data;
  * @num_slots: Number of slots available.
  * @verid: Denote Version ID.
  * @data_offset: Set the offset of DATA register according to VERID.
- * @pdev: Platform device associated with the MMC controller.
+ * @dev: Device associated with the MMC controller.
  * @pdata: Platform data associated with the MMC controller.
  * @slot: Slots sharing this MMC controller.
  * @fifo_depth: depth of FIFO.
@@ -87,6 +87,8 @@ struct mmc_data;
  * @push_data: Pointer to FIFO push function.
  * @pull_data: Pointer to FIFO pull function.
  * @quirks: Set of quirks that apply to specific versions of the IP.
+ * @irq_flags: The flags to be passed to request_irq.
+ * @irq: The irq value to be passed to request_irq.
  *
  * Locking
  * =======
@@ -153,7 +155,7 @@ struct dw_mci {
         u32                     fifoth_val;
         u16                     verid;
         u16                     data_offset;
-        struct platform_device  *pdev;
+        struct device           dev;
         struct dw_mci_board     *pdata;
         struct dw_mci_slot      *slot[MAX_MCI_SLOTS];
 
@@ -174,6 +176,8 @@ struct dw_mci {
         u32                     quirks;
 
         struct regulator        *vmmc;  /* Power regulator */
+        unsigned long           irq_flags; /* IRQ flags */
+        unsigned int            irq;
 };
 
 /* DMA ops for Internal/External DMAC interface */
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 91924e8c642b..cbde4b7e675e 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -81,34 +81,11 @@ struct mmc_ios {
 
 struct mmc_host_ops {
         /*
-         * Hosts that support power saving can use the 'enable' and 'disable'
-         * methods to exit and enter power saving states. 'enable' is called
-         * when the host is claimed and 'disable' is called (or scheduled with
-         * a delay) when the host is released. The 'disable' is scheduled if
-         * the disable delay set by 'mmc_set_disable_delay()' is non-zero,
-         * otherwise 'disable' is called immediately. 'disable' may be
-         * scheduled repeatedly, to permit ever greater power saving at the
-         * expense of ever greater latency to re-enable. Rescheduling is
-         * determined by the return value of the 'disable' method. A positive
-         * value gives the delay in milliseconds.
-         *
-         * In the case where a host function (like set_ios) may be called
-         * with or without the host claimed, enabling and disabling can be
-         * done directly and will nest correctly. Call 'mmc_host_enable()' and
-         * 'mmc_host_lazy_disable()' for this purpose, but note that these
-         * functions must be paired.
-         *
-         * Alternatively, 'mmc_host_enable()' may be paired with
-         * 'mmc_host_disable()' which calls 'disable' immediately.  In this
-         * case the 'disable' method will be called with 'lazy' set to 0.
-         * This is mainly useful for error paths.
-         *
-         * Because lazy disable may be called from a work queue, the 'disable'
-         * method must claim the host when 'lazy' != 0, which will work
-         * correctly because recursion is detected and handled.
+         * 'enable' is called when the host is claimed and 'disable' is called
+         * when the host is released. 'enable' and 'disable' are deprecated.
          */
         int (*enable)(struct mmc_host *host);
-        int (*disable)(struct mmc_host *host, int lazy);
+        int (*disable)(struct mmc_host *host);
         /*
          * It is optional for the host to implement pre_req and post_req in
          * order to support double buffering of requests (prepare one
@@ -219,7 +196,7 @@ struct mmc_host {
 #define MMC_CAP_SPI             (1 << 4)        /* Talks only SPI protocols */
 #define MMC_CAP_NEEDS_POLL      (1 << 5)        /* Needs polling for card-detection */
 #define MMC_CAP_8_BIT_DATA      (1 << 6)        /* Can the host do 8 bit transfers */
-#define MMC_CAP_DISABLE         (1 << 7)        /* Can the host be disabled */
+
 #define MMC_CAP_NONREMOVABLE    (1 << 8)        /* Nonremovable e.g. eMMC */
 #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9)        /* Waits while card is busy */
 #define MMC_CAP_ERASE           (1 << 10)       /* Allow erase/trim commands */
@@ -259,6 +236,8 @@ struct mmc_host {
 #define MMC_CAP2_HS200          (MMC_CAP2_HS200_1_8V_SDR | \
                                  MMC_CAP2_HS200_1_2V_SDR)
 #define MMC_CAP2_BROKEN_VOLTAGE (1 << 7)        /* Use the broken voltage */
+#define MMC_CAP2_DETECT_ON_ERR  (1 << 8)        /* On I/O err check card removal */
+#define MMC_CAP2_HC_ERASE_SZ    (1 << 9)        /* High-capacity erase size */
 
         mmc_pm_flag_t           pm_caps;        /* supported pm features */
         unsigned int        power_notify_type;
@@ -301,13 +280,7 @@ struct mmc_host {
         unsigned int            removed:1;      /* host is being removed */
 #endif
 
-        /* Only used with MMC_CAP_DISABLE */
-        int                     enabled;        /* host is enabled */
         int                     rescan_disable; /* disable card detection */
-        int                     nesting_cnt;    /* "enable" nesting count */
-        int                     en_dis_recurs;  /* detect recursion */
-        unsigned int            disable_delay;  /* disable delay in msecs */
-        struct delayed_work     disable;        /* disabling work */
 
         struct mmc_card         *card;          /* device attached to this host */
 
@@ -407,17 +380,8 @@ int mmc_card_awake(struct mmc_host *host);
 int mmc_card_sleep(struct mmc_host *host);
 int mmc_card_can_sleep(struct mmc_host *host);
 
-int mmc_host_enable(struct mmc_host *host);
-int mmc_host_disable(struct mmc_host *host);
-int mmc_host_lazy_disable(struct mmc_host *host);
 int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *);
 
-static inline void mmc_set_disable_delay(struct mmc_host *host,
-                                         unsigned int disable_delay)
-{
-        host->disable_delay = disable_delay;
-}
-
 /* Module parameter */
 extern bool mmc_assume_removable;
 
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index fb9f6e116e1c..b822a2cb6008 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -274,6 +274,7 @@ struct _mmc_csd {
 #define EXT_CSD_FLUSH_CACHE             32      /* W */
 #define EXT_CSD_CACHE_CTRL              33      /* R/W */
 #define EXT_CSD_POWER_OFF_NOTIFICATION  34      /* R/W */
+#define EXT_CSD_DATA_SECTOR_SIZE        61      /* R */
 #define EXT_CSD_GP_SIZE_MULT            143     /* R/W */
 #define EXT_CSD_PARTITION_ATTRIBUTE     156     /* R/W */
 #define EXT_CSD_PARTITION_SUPPORT       160     /* RO */
@@ -315,6 +316,8 @@ struct _mmc_csd {
 #define EXT_CSD_POWER_OFF_LONG_TIME     247     /* RO */
 #define EXT_CSD_GENERIC_CMD6_TIME       248     /* RO */
 #define EXT_CSD_CACHE_SIZE              249     /* RO, 4 bytes */
+#define EXT_CSD_TAG_UNIT_SIZE           498     /* RO */
+#define EXT_CSD_DATA_TAG_SUPPORT        499     /* RO */
 #define EXT_CSD_HPI_FEATURES            503     /* RO */
 
 /*
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index c750f85177d9..e9051e1cb1ce 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -90,6 +90,8 @@ struct sdhci_host {
 
         unsigned int quirks2;   /* More deviations from spec. */
 
+#define SDHCI_QUIRK2_HOST_OFF_CARD_ON                   (1<<0)
+
         int irq;                /* Device IRQ */
         void __iomem *ioaddr;   /* Mapped address */
 
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index 04ff452bf5c3..05f0e3db1c12 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -77,18 +77,15 @@ struct sh_mmcif_plat_data {
 
 /* CE_CLK_CTRL */
 #define CLK_ENABLE              (1 << 24) /* 1: output mmc clock */
-#define CLK_CLEAR               ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
-#define CLK_SUP_PCLK            ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
-#define CLKDIV_4                (1<<16) /* mmc clock frequency.
-                                         * n: bus clock/(2^(n+1)) */
-#define CLKDIV_256              (7<<16) /* mmc clock frequency. (see above) */
-#define SRSPTO_256              ((1 << 13) | (0 << 12)) /* resp timeout */
-#define SRBSYTO_29              ((1 << 11) | (1 << 10) |        \
-                                 (1 << 9) | (1 << 8)) /* resp busy timeout */
-#define SRWDTO_29               ((1 << 7) | (1 << 6) |          \
-                                 (1 << 5) | (1 << 4)) /* read/write timeout */
-#define SCCSTO_29               ((1 << 3) | (1 << 2) |          \
-                                 (1 << 1) | (1 << 0)) /* ccs timeout */
+#define CLK_CLEAR               (0xf << 16)
+#define CLK_SUP_PCLK            (0xf << 16)
+#define CLKDIV_4                (1 << 16) /* mmc clock frequency.
+                                           * n: bus clock/(2^(n+1)) */
+#define CLKDIV_256              (7 << 16) /* mmc clock frequency. (see above) */
+#define SRSPTO_256              (2 << 12) /* resp timeout */
+#define SRBSYTO_29              (0xf << 8) /* resp busy timeout */
+#define SRWDTO_29               (0xf << 4) /* read/write timeout */
+#define SCCSTO_29               (0xf << 0) /* ccs timeout */
 
 /* CE_VERSION */
 #define SOFT_RST_ON             (1 << 31)
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index 71b805451bd8..e94e620aeddc 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -10,15 +10,29 @@ struct tmio_mmc_data;
 #define SH_MOBILE_SDHI_IRQ_SDCARD       "sdcard"
 #define SH_MOBILE_SDHI_IRQ_SDIO         "sdio"
 
+/**
+ * struct sh_mobile_sdhi_ops - SDHI driver callbacks
+ * @cd_wakeup:          trigger a card-detection run
+ */
+struct sh_mobile_sdhi_ops {
+        void (*cd_wakeup)(const struct platform_device *pdev);
+};
+
 struct sh_mobile_sdhi_info {
         int dma_slave_tx;
         int dma_slave_rx;
         unsigned long tmio_flags;
         unsigned long tmio_caps;
         u32 tmio_ocr_mask;      /* available MMC voltages */
+        unsigned int cd_gpio;
         struct tmio_mmc_data *pdata;
         void (*set_pwr)(struct platform_device *pdev, int state);
         int (*get_cd)(struct platform_device *pdev);
+
+        /* callbacks for board specific setup code */
+        int (*init)(struct platform_device *pdev,
+                    const struct sh_mobile_sdhi_ops *ops);
+        void (*cleanup)(struct platform_device *pdev);
 };
 
 #endif /* LINUX_MMC_SH_MOBILE_SDHI_H */