Merge tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.6:

  Core:
   - Rename cd-gpio to slot-gpio and extend it to support more slot GPIO
     functions, such as write-protect.
   - Add a function to get regulators (Vdd and Vccq) for a host.

  Drivers:
   - sdhci-pxav2, sdhci-pxav3: Add device tree support.
   - sdhi: Add device tree support.
   - sh_mmcif: Add support for regulators, device tree, slot-gpio.
   - tmio: Add regulator support, use slot-gpio."

* tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (62 commits)
  mmc: sdhci-dove: Prepare for common clock framework
  mmc: sdhci-dove: Add SDHCI_QUIRK_NO_HISPD_BIT
  mmc: omap_hsmmc: ensure probe returns error upon resource failure
  mmc: mxs-mmc: Add wp-inverted property
  mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access
  mmc: core: reset signal voltage on power up
  mmc: sd: Fix sd current limit setting
  mmc: omap_hsmmc: add clk_prepare and clk_unprepare
  mmc: sdhci: When a UHS switch fails, cycle power if regulator is used
  mmc: atmel-mci: modify CLKDIV displaying in debugfs
  mmc: atmel-mci: fix incorrect setting of host->data to NULL
  mmc: sdhci: poll for card even when card is logically unremovable
  mmc: sdhci: Introduce new flag SDHCI_USING_RETUNING_TIMER
  mmc: sdio: Change pr_warning to pr_warn_ratelimited
  mmc: core: Simplify and fix for SD switch processing
  mmc: sdhci: restore host settings when card is removed
  mmc: sdhci: fix incorrect command used in tuning
  mmc: sdhci-pci: CaFe has broken card detection
  mmc: sdhci: Report failure reasons for all cases in sdhci_add_host()
  mmc: s3cmci: Convert s3cmci driver to gpiolib API
  ...

8 files changed, 71 insertions, 31 deletions

diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index f5171dbf8850..d83af39815ab 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -101,6 +101,7 @@ struct tmio_mmc_host;
 struct tmio_mmc_data {
         unsigned int                    hclk;
         unsigned long                   capabilities;
+        unsigned long                   capabilities2;
         unsigned long                   flags;
         u32                             ocr_mask;       /* available voltages */
         struct tmio_mmc_dma             *dma;
@@ -110,6 +111,9 @@ struct tmio_mmc_data {
         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);
+        /* clock management callbacks */
+        int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
+        void (*clk_disable)(struct platform_device *pdev);
 };
 
 /*
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index d76513b5b263..111aca5e97f3 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -149,6 +149,7 @@ struct sd_switch_caps {
 #define SD_SET_CURRENT_LIMIT_400        1
 #define SD_SET_CURRENT_LIMIT_600        2
 #define SD_SET_CURRENT_LIMIT_800        3
+#define SD_SET_CURRENT_NO_CHANGE        (-1)
 
 #define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 #define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
diff --git a/include/linux/mmc/cd-gpio.h b/include/linux/mmc/cd-gpio.h
deleted file mode 100644
index cefaba038ccb..000000000000
--- a/include/linux/mmc/cd-gpio.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Generic GPIO card-detect helper header
- *
- * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef MMC_CD_GPIO_H
-#define MMC_CD_GPIO_H
-
-struct mmc_host;
-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/host.h b/include/linux/mmc/host.h
index 0707d228d7f1..f578a71d82a6 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -11,6 +11,7 @@
 #define LINUX_MMC_HOST_H
 
 #include <linux/leds.h>
+#include <linux/mutex.h>
 #include <linux/sched.h>
 #include <linux/device.h>
 #include <linux/fault-inject.h>
@@ -150,11 +151,31 @@ struct mmc_async_req {
         int (*err_check) (struct mmc_card *, struct mmc_async_req *);
 };
 
-struct mmc_hotplug {
-        unsigned int irq;
+/**
+ * struct mmc_slot - MMC slot functions
+ *
+ * @cd_irq:             MMC/SD-card slot hotplug detection IRQ or -EINVAL
+ * @lock:               protect the @handler_priv pointer
+ * @handler_priv:       MMC/SD-card slot context
+ *
+ * Some MMC/SD host controllers implement slot-functions like card and
+ * write-protect detection natively. However, a large number of controllers
+ * leave these functions to the CPU. This struct provides a hook to attach
+ * such slot-function drivers.
+ */
+struct mmc_slot {
+        int cd_irq;
+        struct mutex lock;
         void *handler_priv;
 };
 
+struct regulator;
+
+struct mmc_supply {
+        struct regulator *vmmc;         /* Card power supply */
+        struct regulator *vqmmc;        /* Optional Vccq supply */
+};
+
 struct mmc_host {
         struct device           *parent;
         struct device           class_dev;
@@ -168,6 +189,9 @@ struct mmc_host {
         u32                     ocr_avail_sd;   /* SD-specific OCR */
         u32                     ocr_avail_mmc;  /* MMC-specific OCR */
         struct notifier_block   pm_notify;
+        u32                     max_current_330;
+        u32                     max_current_300;
+        u32                     max_current_180;
 
 #define MMC_VDD_165_195         0x00000080      /* VDD voltage 1.65 - 1.95 */
 #define MMC_VDD_20_21           0x00000100      /* VDD voltage 2.0 ~ 2.1 */
@@ -211,16 +235,9 @@ struct mmc_host {
 #define MMC_CAP_UHS_SDR50       (1 << 17)       /* Host supports UHS SDR50 mode */
 #define MMC_CAP_UHS_SDR104      (1 << 18)       /* Host supports UHS SDR104 mode */
 #define MMC_CAP_UHS_DDR50       (1 << 19)       /* Host supports UHS DDR50 mode */
-#define MMC_CAP_SET_XPC_330     (1 << 20)       /* Host supports >150mA current at 3.3V */
-#define MMC_CAP_SET_XPC_300     (1 << 21)       /* Host supports >150mA current at 3.0V */
-#define MMC_CAP_SET_XPC_180     (1 << 22)       /* Host supports >150mA current at 1.8V */
 #define MMC_CAP_DRIVER_TYPE_A   (1 << 23)       /* Host supports Driver Type A */
 #define MMC_CAP_DRIVER_TYPE_C   (1 << 24)       /* Host supports Driver Type C */
 #define MMC_CAP_DRIVER_TYPE_D   (1 << 25)       /* Host supports Driver Type D */
-#define MMC_CAP_MAX_CURRENT_200 (1 << 26)       /* Host max current limit is 200mA */
-#define MMC_CAP_MAX_CURRENT_400 (1 << 27)       /* Host max current limit is 400mA */
-#define MMC_CAP_MAX_CURRENT_600 (1 << 28)       /* Host max current limit is 600mA */
-#define MMC_CAP_MAX_CURRENT_800 (1 << 29)       /* Host max current limit is 800mA */
 #define MMC_CAP_CMD23           (1 << 30)       /* CMD23 supported. */
 #define MMC_CAP_HW_RESET        (1 << 31)       /* Hardware reset */
 
@@ -238,6 +255,8 @@ struct mmc_host {
 #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 */
+#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10)       /* Card-detect signal active high */
+#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11)       /* Write-protect signal active high */
 
         mmc_pm_flag_t           pm_caps;        /* supported pm features */
         unsigned int        power_notify_type;
@@ -290,7 +309,7 @@ struct mmc_host {
 
         struct delayed_work     detect;
         int                     detect_change;  /* card detect flag */
-        struct mmc_hotplug      hotplug;
+        struct mmc_slot         slot;
 
         const struct mmc_bus_ops *bus_ops;      /* current bus driver */
         unsigned int            bus_refs;       /* reference counter */
@@ -309,6 +328,7 @@ struct mmc_host {
 #ifdef CONFIG_REGULATOR
         bool                    regulator_enabled; /* regulator state */
 #endif
+        struct mmc_supply       supply;
 
         struct dentry           *debugfs_root;
 
@@ -357,13 +377,12 @@ static inline void mmc_signal_sdio_irq(struct mmc_host *host)
         wake_up_process(host->sdio_irq_thread);
 }
 
-struct regulator;
-
 #ifdef CONFIG_REGULATOR
 int mmc_regulator_get_ocrmask(struct regulator *supply);
 int mmc_regulator_set_ocr(struct mmc_host *mmc,
                         struct regulator *supply,
                         unsigned short vdd_bit);
+int mmc_regulator_get_supply(struct mmc_host *mmc);
 #else
 static inline int mmc_regulator_get_ocrmask(struct regulator *supply)
 {
@@ -376,6 +395,11 @@ static inline int mmc_regulator_set_ocr(struct mmc_host *mmc,
 {
         return 0;
 }
+
+static inline int mmc_regulator_get_supply(struct mmc_host *mmc)
+{
+        return 0;
+}
 #endif
 
 int mmc_card_awake(struct mmc_host *host);
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index e9051e1cb1ce..ac83b105bedd 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -122,6 +122,7 @@ struct sdhci_host {
 #define SDHCI_PV_ENABLED        (1<<8)  /* Preset value enabled */
 #define SDHCI_SDIO_IRQ_ENABLED  (1<<9)  /* SDIO irq enabled */
 #define SDHCI_HS200_NEEDS_TUNING (1<<10)        /* HS200 needs tuning */
+#define SDHCI_USING_RETUNING_TIMER (1<<11)      /* Host is using a retuning timer for the card */
 
         unsigned int version;   /* SDHCI spec. version */
 
@@ -155,7 +156,8 @@ struct sdhci_host {
 
         struct timer_list timer;        /* Timer for timeouts */
 
-        unsigned int caps;      /* Alternative capabilities */
+        unsigned int caps;      /* Alternative CAPABILITY_0 */
+        unsigned int caps1;     /* Alternative CAPABILITY_1 */
 
         unsigned int            ocr_avail_sdio; /* OCR bit masks */
         unsigned int            ocr_avail_sd;
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index 05f0e3db1c12..c2f73cbb4d5c 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -44,6 +44,8 @@ struct sh_mmcif_plat_data {
         struct sh_mmcif_dma     *dma;           /* Deprecated. Instead */
         unsigned int            slave_id_tx;    /* use embedded slave_id_[tr]x */
         unsigned int            slave_id_rx;
+        bool                    use_cd_gpio : 1;
+        unsigned int            cd_gpio;
         u8                      sup_pclk;       /* 1 :SH7757, 0: SH7724/SH7372 */
         unsigned long           caps;
         u32                     ocr;
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index e94e620aeddc..b65679ffa880 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -23,6 +23,7 @@ struct sh_mobile_sdhi_info {
         int dma_slave_rx;
         unsigned long tmio_flags;
         unsigned long tmio_caps;
+        unsigned long tmio_caps2;
         u32 tmio_ocr_mask;      /* available MMC voltages */
         unsigned int cd_gpio;
         struct tmio_mmc_data *pdata;
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h
new file mode 100644
index 000000000000..7d88d27bfafa
--- /dev/null
+++ b/include/linux/mmc/slot-gpio.h
@@ -0,0 +1,24 @@
+/*
+ * Generic GPIO card-detect helper header
+ *
+ * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MMC_SLOT_GPIO_H
+#define MMC_SLOT_GPIO_H
+
+struct mmc_host;
+
+int mmc_gpio_get_ro(struct mmc_host *host);
+int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio);
+void mmc_gpio_free_ro(struct mmc_host *host);
+
+int mmc_gpio_get_cd(struct mmc_host *host);
+int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio);
+void mmc_gpio_free_cd(struct mmc_host *host);
+
+#endif