1 files changed, 36 insertions, 12 deletions

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);