LXR linux/include/linux/mmc/host.h

   1/*
   2 *  linux/include/linux/mmc/host.h
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 *
   8 *  Host driver specific definitions.
   9 */
  10#ifndef LINUX_MMC_HOST_H
  11#define LINUX_MMC_HOST_H
  12
  13#include <linux/leds.h>
  14#include <linux/mutex.h>
  15#include <linux/timer.h>
  16#include <linux/sched.h>
  17#include <linux/device.h>
  18#include <linux/fault-inject.h>
  19
  20#include <linux/mmc/core.h>
  21#include <linux/mmc/card.h>
  22#include <linux/mmc/mmc.h>
  23#include <linux/mmc/pm.h>
  24
  25struct mmc_ios {
  26        unsigned int    clock;                  /* clock rate */
  27        unsigned short  vdd;
  28
  29/* vdd stores the bit number of the selected voltage range from below. */
  30
  31        unsigned char   bus_mode;               /* command output mode */
  32
  33#define MMC_BUSMODE_OPENDRAIN   1
  34#define MMC_BUSMODE_PUSHPULL    2
  35
  36        unsigned char   chip_select;            /* SPI chip select */
  37
  38#define MMC_CS_DONTCARE         0
  39#define MMC_CS_HIGH             1
  40#define MMC_CS_LOW              2
  41
  42        unsigned char   power_mode;             /* power supply mode */
  43
  44#define MMC_POWER_OFF           0
  45#define MMC_POWER_UP            1
  46#define MMC_POWER_ON            2
  47#define MMC_POWER_UNDEFINED     3
  48
  49        unsigned char   bus_width;              /* data bus width */
  50
  51#define MMC_BUS_WIDTH_1         0
  52#define MMC_BUS_WIDTH_4         2
  53#define MMC_BUS_WIDTH_8         3
  54
  55        unsigned char   timing;                 /* timing specification used */
  56
  57#define MMC_TIMING_LEGACY       0
  58#define MMC_TIMING_MMC_HS       1
  59#define MMC_TIMING_SD_HS        2
  60#define MMC_TIMING_UHS_SDR12    3
  61#define MMC_TIMING_UHS_SDR25    4
  62#define MMC_TIMING_UHS_SDR50    5
  63#define MMC_TIMING_UHS_SDR104   6
  64#define MMC_TIMING_UHS_DDR50    7
  65#define MMC_TIMING_MMC_DDR52    8
  66#define MMC_TIMING_MMC_HS200    9
  67#define MMC_TIMING_MMC_HS400    10
  68
  69        unsigned char   signal_voltage;         /* signalling voltage (1.8V or 3.3V) */
  70
  71#define MMC_SIGNAL_VOLTAGE_330  0
  72#define MMC_SIGNAL_VOLTAGE_180  1
  73#define MMC_SIGNAL_VOLTAGE_120  2
  74
  75        unsigned char   drv_type;               /* driver type (A, B, C, D) */
  76
  77#define MMC_SET_DRIVER_TYPE_B   0
  78#define MMC_SET_DRIVER_TYPE_A   1
  79#define MMC_SET_DRIVER_TYPE_C   2
  80#define MMC_SET_DRIVER_TYPE_D   3
  81
  82        bool enhanced_strobe;                   /* hs400es selection */
  83};
  84
  85struct mmc_host_ops {
  86        /*
  87         * It is optional for the host to implement pre_req and post_req in
  88         * order to support double buffering of requests (prepare one
  89         * request while another request is active).
  90         * pre_req() must always be followed by a post_req().
  91         * To undo a call made to pre_req(), call post_req() with
  92         * a nonzero err condition.
  93         */
  94        void    (*post_req)(struct mmc_host *host, struct mmc_request *req,
  95                            int err);
  96        void    (*pre_req)(struct mmc_host *host, struct mmc_request *req);
  97        void    (*request)(struct mmc_host *host, struct mmc_request *req);
  98
  99        /*
 100         * Avoid calling the next three functions too often or in a "fast
 101         * path", since underlaying controller might implement them in an
 102         * expensive and/or slow way. Also note that these functions might
 103         * sleep, so don't call them in the atomic contexts!
 104         */
 105
 106        /*
 107         * Notes to the set_ios callback:
 108         * ios->clock might be 0. For some controllers, setting 0Hz
 109         * as any other frequency works. However, some controllers
 110         * explicitly need to disable the clock. Otherwise e.g. voltage
 111         * switching might fail because the SDCLK is not really quiet.
 112         */
 113        void    (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
 114
 115        /*
 116         * Return values for the get_ro callback should be:
 117         *   0 for a read/write card
 118         *   1 for a read-only card
 119         *   -ENOSYS when not supported (equal to NULL callback)
 120         *   or a negative errno value when something bad happened
 121         */
 122        int     (*get_ro)(struct mmc_host *host);
 123
 124        /*
 125         * Return values for the get_cd callback should be:
 126         *   0 for a absent card
 127         *   1 for a present card
 128         *   -ENOSYS when not supported (equal to NULL callback)
 129         *   or a negative errno value when something bad happened
 130         */
 131        int     (*get_cd)(struct mmc_host *host);
 132
 133        void    (*enable_sdio_irq)(struct mmc_host *host, int enable);
 134        void    (*ack_sdio_irq)(struct mmc_host *host);
 135
 136        /* optional callback for HC quirks */
 137        void    (*init_card)(struct mmc_host *host, struct mmc_card *card);
 138
 139        int     (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios);
 140
 141        /* Check if the card is pulling dat[0:3] low */
 142        int     (*card_busy)(struct mmc_host *host);
 143
 144        /* The tuning command opcode value is different for SD and eMMC cards */
 145        int     (*execute_tuning)(struct mmc_host *host, u32 opcode);
 146
 147        /* Prepare HS400 target operating frequency depending host driver */
 148        int     (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios);
 149        /* Prepare enhanced strobe depending host driver */
 150        void    (*hs400_enhanced_strobe)(struct mmc_host *host,
 151                                         struct mmc_ios *ios);
 152        int     (*select_drive_strength)(struct mmc_card *card,
 153                                         unsigned int max_dtr, int host_drv,
 154                                         int card_drv, int *drv_type);
 155        void    (*hw_reset)(struct mmc_host *host);
 156        void    (*card_event)(struct mmc_host *host);
 157
 158        /*
 159         * Optional callback to support controllers with HW issues for multiple
 160         * I/O. Returns the number of supported blocks for the request.
 161         */
 162        int     (*multi_io_quirk)(struct mmc_card *card,
 163                                  unsigned int direction, int blk_size);
 164};
 165
 166struct mmc_card;
 167struct device;
 168
 169struct mmc_cqe_ops {
 170        /* Allocate resources, and make the CQE operational */
 171        int     (*cqe_enable)(struct mmc_host *host, struct mmc_card *card);
 172        /* Free resources, and make the CQE non-operational */
 173        void    (*cqe_disable)(struct mmc_host *host);
 174        /*
 175         * Issue a read, write or DCMD request to the CQE. Also deal with the
 176         * effect of ->cqe_off().
 177         */
 178        int     (*cqe_request)(struct mmc_host *host, struct mmc_request *mrq);
 179        /* Free resources (e.g. DMA mapping) associated with the request */
 180        void    (*cqe_post_req)(struct mmc_host *host, struct mmc_request *mrq);
 181        /*
 182         * Prepare the CQE and host controller to accept non-CQ commands. There
 183         * is no corresponding ->cqe_on(), instead ->cqe_request() is required
 184         * to deal with that.
 185         */
 186        void    (*cqe_off)(struct mmc_host *host);
 187        /*
 188         * Wait for all CQE tasks to complete. Return an error if recovery
 189         * becomes necessary.
 190         */
 191        int     (*cqe_wait_for_idle)(struct mmc_host *host);
 192        /*
 193         * Notify CQE that a request has timed out. Return false if the request
 194         * completed or true if a timeout happened in which case indicate if
 195         * recovery is needed.
 196         */
 197        bool    (*cqe_timeout)(struct mmc_host *host, struct mmc_request *mrq,
 198                               bool *recovery_needed);
 199        /*
 200         * Stop all CQE activity and prepare the CQE and host controller to
 201         * accept recovery commands.
 202         */
 203        void    (*cqe_recovery_start)(struct mmc_host *host);
 204        /*
 205         * Clear the queue and call mmc_cqe_request_done() on all requests.
 206         * Requests that errored will have the error set on the mmc_request
 207         * (data->error or cmd->error for DCMD).  Requests that did not error
 208         * will have zero data bytes transferred.
 209         */
 210        void    (*cqe_recovery_finish)(struct mmc_host *host);
 211};
 212
 213struct mmc_async_req {
 214        /* active mmc request */
 215        struct mmc_request      *mrq;
 216        /*
 217         * Check error status of completed mmc request.
 218         * Returns 0 if success otherwise non zero.
 219         */
 220        enum mmc_blk_status (*err_check)(struct mmc_card *, struct mmc_async_req *);
 221};
 222
 223/**
 224 * struct mmc_slot - MMC slot functions
 225 *
 226 * @cd_irq:             MMC/SD-card slot hotplug detection IRQ or -EINVAL
 227 * @handler_priv:       MMC/SD-card slot context
 228 *
 229 * Some MMC/SD host controllers implement slot-functions like card and
 230 * write-protect detection natively. However, a large number of controllers
 231 * leave these functions to the CPU. This struct provides a hook to attach
 232 * such slot-function drivers.
 233 */
 234struct mmc_slot {
 235        int cd_irq;
 236        bool cd_wake_enabled;
 237        void *handler_priv;
 238};
 239
 240/**
 241 * mmc_context_info - synchronization details for mmc context
 242 * @is_done_rcv         wake up reason was done request
 243 * @is_new_req          wake up reason was new request
 244 * @is_waiting_last_req mmc context waiting for single running request
 245 * @wait                wait queue
 246 */
 247struct mmc_context_info {
 248        bool                    is_done_rcv;
 249        bool                    is_new_req;
 250        bool                    is_waiting_last_req;
 251        wait_queue_head_t       wait;
 252};
 253
 254struct regulator;
 255
 256struct mmc_supply {
 257        struct regulator *vmmc;         /* Card power supply */
 258        struct regulator *vqmmc;        /* Optional Vccq supply */
 259};
 260
 261struct mmc_ctx {
 262        struct task_struct *task;
 263};
 264
 265struct mmc_host {
 266        struct device           *parent;
 267        struct device           class_dev;
 268        int                     index;
 269        const struct mmc_host_ops *ops;
 270        unsigned int            f_min;
 271        unsigned int            f_max;
 272        unsigned int            f_init;
 273        u32                     ocr_avail;
 274        u32                     ocr_avail_sdio; /* SDIO-specific OCR */
 275        u32                     ocr_avail_sd;   /* SD-specific OCR */
 276        u32                     ocr_avail_mmc;  /* MMC-specific OCR */
 277#ifdef CONFIG_PM_SLEEP
 278        struct notifier_block   pm_notify;
 279#endif
 280        u32                     max_current_330;
 281        u32                     max_current_300;
 282        u32                     max_current_180;
 283
 284#define MMC_VDD_165_195         0x00000080      /* VDD voltage 1.65 - 1.95 */
 285#define MMC_VDD_20_21           0x00000100      /* VDD voltage 2.0 ~ 2.1 */
 286#define MMC_VDD_21_22           0x00000200      /* VDD voltage 2.1 ~ 2.2 */
 287#define MMC_VDD_22_23           0x00000400      /* VDD voltage 2.2 ~ 2.3 */
 288#define MMC_VDD_23_24           0x00000800      /* VDD voltage 2.3 ~ 2.4 */
 289#define MMC_VDD_24_25           0x00001000      /* VDD voltage 2.4 ~ 2.5 */
 290#define MMC_VDD_25_26           0x00002000      /* VDD voltage 2.5 ~ 2.6 */
 291#define MMC_VDD_26_27           0x00004000      /* VDD voltage 2.6 ~ 2.7 */
 292#define MMC_VDD_27_28           0x00008000      /* VDD voltage 2.7 ~ 2.8 */
 293#define MMC_VDD_28_29           0x00010000      /* VDD voltage 2.8 ~ 2.9 */
 294#define MMC_VDD_29_30           0x00020000      /* VDD voltage 2.9 ~ 3.0 */
 295#define MMC_VDD_30_31           0x00040000      /* VDD voltage 3.0 ~ 3.1 */
 296#define MMC_VDD_31_32           0x00080000      /* VDD voltage 3.1 ~ 3.2 */
 297#define MMC_VDD_32_33           0x00100000      /* VDD voltage 3.2 ~ 3.3 */
 298#define MMC_VDD_33_34           0x00200000      /* VDD voltage 3.3 ~ 3.4 */
 299#define MMC_VDD_34_35           0x00400000      /* VDD voltage 3.4 ~ 3.5 */
 300#define MMC_VDD_35_36           0x00800000      /* VDD voltage 3.5 ~ 3.6 */
 301
 302        u32                     caps;           /* Host capabilities */
 303
 304#define MMC_CAP_4_BIT_DATA      (1 << 0)        /* Can the host do 4 bit transfers */
 305#define MMC_CAP_MMC_HIGHSPEED   (1 << 1)        /* Can do MMC high-speed timing */
 306#define MMC_CAP_SD_HIGHSPEED    (1 << 2)        /* Can do SD high-speed timing */
 307#define MMC_CAP_SDIO_IRQ        (1 << 3)        /* Can signal pending SDIO IRQs */
 308#define MMC_CAP_SPI             (1 << 4)        /* Talks only SPI protocols */
 309#define MMC_CAP_NEEDS_POLL      (1 << 5)        /* Needs polling for card-detection */
 310#define MMC_CAP_8_BIT_DATA      (1 << 6)        /* Can the host do 8 bit transfers */
 311#define MMC_CAP_AGGRESSIVE_PM   (1 << 7)        /* Suspend (e)MMC/SD at idle  */
 312#define MMC_CAP_NONREMOVABLE    (1 << 8)        /* Nonremovable e.g. eMMC */
 313#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9)        /* Waits while card is busy */
 314#define MMC_CAP_ERASE           (1 << 10)       /* Allow erase/trim commands */
 315#define MMC_CAP_3_3V_DDR        (1 << 11)       /* Host supports eMMC DDR 3.3V */
 316#define MMC_CAP_1_8V_DDR        (1 << 12)       /* Host supports eMMC DDR 1.8V */
 317#define MMC_CAP_1_2V_DDR        (1 << 13)       /* Host supports eMMC DDR 1.2V */
 318#define MMC_CAP_POWER_OFF_CARD  (1 << 14)       /* Can power off after boot */
 319#define MMC_CAP_BUS_WIDTH_TEST  (1 << 15)       /* CMD14/CMD19 bus width ok */
 320#define MMC_CAP_UHS_SDR12       (1 << 16)       /* Host supports UHS SDR12 mode */
 321#define MMC_CAP_UHS_SDR25       (1 << 17)       /* Host supports UHS SDR25 mode */
 322#define MMC_CAP_UHS_SDR50       (1 << 18)       /* Host supports UHS SDR50 mode */
 323#define MMC_CAP_UHS_SDR104      (1 << 19)       /* Host supports UHS SDR104 mode */
 324#define MMC_CAP_UHS_DDR50       (1 << 20)       /* Host supports UHS DDR50 mode */
 325/* (1 << 21) is free for reuse */
 326#define MMC_CAP_DRIVER_TYPE_A   (1 << 23)       /* Host supports Driver Type A */
 327#define MMC_CAP_DRIVER_TYPE_C   (1 << 24)       /* Host supports Driver Type C */
 328#define MMC_CAP_DRIVER_TYPE_D   (1 << 25)       /* Host supports Driver Type D */
 329#define MMC_CAP_DONE_COMPLETE   (1 << 27)       /* RW reqs can be completed within mmc_request_done() */
 330#define MMC_CAP_CD_WAKE         (1 << 28)       /* Enable card detect wake */
 331#define MMC_CAP_CMD_DURING_TFR  (1 << 29)       /* Commands during data transfer */
 332#define MMC_CAP_CMD23           (1 << 30)       /* CMD23 supported. */
 333#define MMC_CAP_HW_RESET        (1 << 31)       /* Hardware reset */
 334
 335        u32                     caps2;          /* More host capabilities */
 336
 337#define MMC_CAP2_BOOTPART_NOACC (1 << 0)        /* Boot partition no access */
 338#define MMC_CAP2_FULL_PWR_CYCLE (1 << 2)        /* Can do full power cycle */
 339#define MMC_CAP2_HS200_1_8V_SDR (1 << 5)        /* can support */
 340#define MMC_CAP2_HS200_1_2V_SDR (1 << 6)        /* can support */
 341#define MMC_CAP2_HS200          (MMC_CAP2_HS200_1_8V_SDR | \
 342                                 MMC_CAP2_HS200_1_2V_SDR)
 343#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10)       /* Card-detect signal active high */
 344#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11)       /* Write-protect signal active high */
 345#define MMC_CAP2_NO_PRESCAN_POWERUP (1 << 14)   /* Don't power up before scan */
 346#define MMC_CAP2_HS400_1_8V     (1 << 15)       /* Can support HS400 1.8V */
 347#define MMC_CAP2_HS400_1_2V     (1 << 16)       /* Can support HS400 1.2V */
 348#define MMC_CAP2_HS400          (MMC_CAP2_HS400_1_8V | \
 349                                 MMC_CAP2_HS400_1_2V)
 350#define MMC_CAP2_HSX00_1_2V     (MMC_CAP2_HS200_1_2V_SDR | MMC_CAP2_HS400_1_2V)
 351#define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17)
 352#define MMC_CAP2_NO_WRITE_PROTECT (1 << 18)     /* No physical write protect pin, assume that card is always read-write */
 353#define MMC_CAP2_NO_SDIO        (1 << 19)       /* Do not send SDIO commands during initialization */
 354#define MMC_CAP2_HS400_ES       (1 << 20)       /* Host supports enhanced strobe */
 355#define MMC_CAP2_NO_SD          (1 << 21)       /* Do not send SD commands during initialization */
 356#define MMC_CAP2_NO_MMC         (1 << 22)       /* Do not send (e)MMC commands during initialization */
 357#define MMC_CAP2_CQE            (1 << 23)       /* Has eMMC command queue engine */
 358#define MMC_CAP2_CQE_DCMD       (1 << 24)       /* CQE can issue a direct command */
 359
 360        mmc_pm_flag_t           pm_caps;        /* supported pm features */
 361
 362        /* host specific block data */
 363        unsigned int            max_seg_size;   /* see blk_queue_max_segment_size */
 364        unsigned short          max_segs;       /* see blk_queue_max_segments */
 365        unsigned short          unused;
 366        unsigned int            max_req_size;   /* maximum number of bytes in one req */
 367        unsigned int            max_blk_size;   /* maximum size of one mmc block */
 368        unsigned int            max_blk_count;  /* maximum number of blocks in one req */
 369        unsigned int            max_busy_timeout; /* max busy timeout in ms */
 370
 371        /* private data */
 372        spinlock_t              lock;           /* lock for claim and bus ops */
 373
 374        struct mmc_ios          ios;            /* current io bus settings */
 375
 376        /* group bitfields together to minimize padding */
 377        unsigned int            use_spi_crc:1;
 378        unsigned int            claimed:1;      /* host exclusively claimed */
 379        unsigned int            bus_dead:1;     /* bus has been released */
 380        unsigned int            can_retune:1;   /* re-tuning can be used */
 381        unsigned int            doing_retune:1; /* re-tuning in progress */
 382        unsigned int            retune_now:1;   /* do re-tuning at next req */
 383        unsigned int            retune_paused:1; /* re-tuning is temporarily disabled */
 384        unsigned int            use_blk_mq:1;   /* use blk-mq */
 385
 386        int                     rescan_disable; /* disable card detection */
 387        int                     rescan_entered; /* used with nonremovable devices */
 388
 389        int                     need_retune;    /* re-tuning is needed */
 390        int                     hold_retune;    /* hold off re-tuning */
 391        unsigned int            retune_period;  /* re-tuning period in secs */
 392        struct timer_list       retune_timer;   /* for periodic re-tuning */
 393
 394        bool                    trigger_card_event; /* card_event necessary */
 395
 396        struct mmc_card         *card;          /* device attached to this host */
 397
 398        wait_queue_head_t       wq;
 399        struct mmc_ctx          *claimer;       /* context that has host claimed */
 400        int                     claim_cnt;      /* "claim" nesting count */
 401        struct mmc_ctx          default_ctx;    /* default context */
 402
 403        struct delayed_work     detect;
 404        int                     detect_change;  /* card detect flag */
 405        struct mmc_slot         slot;
 406
 407        const struct mmc_bus_ops *bus_ops;      /* current bus driver */
 408        unsigned int            bus_refs;       /* reference counter */
 409
 410        unsigned int            sdio_irqs;
 411        struct task_struct      *sdio_irq_thread;
 412        struct delayed_work     sdio_irq_work;
 413        bool                    sdio_irq_pending;
 414        atomic_t                sdio_irq_thread_abort;
 415
 416        mmc_pm_flag_t           pm_flags;       /* requested pm features */
 417
 418        struct led_trigger      *led;           /* activity led */
 419
 420#ifdef CONFIG_REGULATOR
 421        bool                    regulator_enabled; /* regulator state */
 422#endif
 423        struct mmc_supply       supply;
 424
 425        struct dentry           *debugfs_root;
 426
 427        /* Ongoing data transfer that allows commands during transfer */
 428        struct mmc_request      *ongoing_mrq;
 429
 430#ifdef CONFIG_FAIL_MMC_REQUEST
 431        struct fault_attr       fail_mmc_request;
 432#endif
 433
 434        unsigned int            actual_clock;   /* Actual HC clock rate */
 435
 436        unsigned int            slotno; /* used for sdio acpi binding */
 437
 438        int                     dsr_req;        /* DSR value is valid */
 439        u32                     dsr;    /* optional driver stage (DSR) value */
 440
 441        /* Command Queue Engine (CQE) support */
 442        const struct mmc_cqe_ops *cqe_ops;
 443        void                    *cqe_private;
 444        int                     cqe_qdepth;
 445        bool                    cqe_enabled;
 446        bool                    cqe_on;
 447
 448        unsigned long           private[0] ____cacheline_aligned;
 449};
 450
 451struct mmc_host *mmc_alloc_host(int extra, struct device *);
 452int mmc_add_host(struct mmc_host *);
 453void mmc_remove_host(struct mmc_host *);
 454void mmc_free_host(struct mmc_host *);
 455int mmc_of_parse(struct mmc_host *host);
 456
 457static inline void *mmc_priv(struct mmc_host *host)
 458{
 459        return (void *)host->private;
 460}
 461
 462#define mmc_host_is_spi(host)   ((host)->caps & MMC_CAP_SPI)
 463
 464#define mmc_dev(x)      ((x)->parent)
 465#define mmc_classdev(x) (&(x)->class_dev)
 466#define mmc_hostname(x) (dev_name(&(x)->class_dev))
 467
 468int mmc_power_save_host(struct mmc_host *host);
 469int mmc_power_restore_host(struct mmc_host *host);
 470
 471void mmc_detect_change(struct mmc_host *, unsigned long delay);
 472void mmc_request_done(struct mmc_host *, struct mmc_request *);
 473void mmc_command_done(struct mmc_host *host, struct mmc_request *mrq);
 474
 475void mmc_cqe_request_done(struct mmc_host *host, struct mmc_request *mrq);
 476
 477static inline void mmc_signal_sdio_irq(struct mmc_host *host)
 478{
 479        host->ops->enable_sdio_irq(host, 0);
 480        host->sdio_irq_pending = true;
 481        if (host->sdio_irq_thread)
 482                wake_up_process(host->sdio_irq_thread);
 483}
 484
 485void sdio_run_irqs(struct mmc_host *host);
 486void sdio_signal_irq(struct mmc_host *host);
 487
 488#ifdef CONFIG_REGULATOR
 489int mmc_regulator_get_ocrmask(struct regulator *supply);
 490int mmc_regulator_set_ocr(struct mmc_host *mmc,
 491                        struct regulator *supply,
 492                        unsigned short vdd_bit);
 493int mmc_regulator_set_vqmmc(struct mmc_host *mmc, struct mmc_ios *ios);
 494#else
 495static inline int mmc_regulator_get_ocrmask(struct regulator *supply)
 496{
 497        return 0;
 498}
 499
 500static inline int mmc_regulator_set_ocr(struct mmc_host *mmc,
 501                                 struct regulator *supply,
 502                                 unsigned short vdd_bit)
 503{
 504        return 0;
 505}
 506
 507static inline int mmc_regulator_set_vqmmc(struct mmc_host *mmc,
 508                                          struct mmc_ios *ios)
 509{
 510        return -EINVAL;
 511}
 512#endif
 513
 514int mmc_regulator_get_supply(struct mmc_host *mmc);
 515
 516static inline int mmc_card_is_removable(struct mmc_host *host)
 517{
 518        return !(host->caps & MMC_CAP_NONREMOVABLE);
 519}
 520
 521static inline int mmc_card_keep_power(struct mmc_host *host)
 522{
 523        return host->pm_flags & MMC_PM_KEEP_POWER;
 524}
 525
 526static inline int mmc_card_wake_sdio_irq(struct mmc_host *host)
 527{
 528        return host->pm_flags & MMC_PM_WAKE_SDIO_IRQ;
 529}
 530
 531/* TODO: Move to private header */
 532static inline int mmc_card_hs(struct mmc_card *card)
 533{
 534        return card->host->ios.timing == MMC_TIMING_SD_HS ||
 535                card->host->ios.timing == MMC_TIMING_MMC_HS;
 536}
 537
 538/* TODO: Move to private header */
 539static inline int mmc_card_uhs(struct mmc_card *card)
 540{
 541        return card->host->ios.timing >= MMC_TIMING_UHS_SDR12 &&
 542                card->host->ios.timing <= MMC_TIMING_UHS_DDR50;
 543}
 544
 545void mmc_retune_timer_stop(struct mmc_host *host);
 546
 547static inline void mmc_retune_needed(struct mmc_host *host)
 548{
 549        if (host->can_retune)
 550                host->need_retune = 1;
 551}
 552
 553static inline bool mmc_can_retune(struct mmc_host *host)
 554{
 555        return host->can_retune == 1;
 556}
 557
 558#endif /* LINUX_MMC_HOST_H */
 559