1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef __LINUX_REGMAP_H 3 #define __LINUX_REGMAP_H 4 5 /* 6 * Register map access API 7 * 8 * Copyright 2011 Wolfson Microelectronics plc 9 * 10 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 11 */ 12 13 #include <linux/list.h> 14 #include <linux/rbtree.h> 15 #include <linux/ktime.h> 16 #include <linux/delay.h> 17 #include <linux/err.h> 18 #include <linux/bug.h> 19 #include <linux/lockdep.h> 20 #include <linux/iopoll.h> 21 #include <linux/fwnode.h> 22 23 struct module; 24 struct clk; 25 struct device; 26 struct device_node; 27 struct fsi_device; 28 struct i2c_client; 29 struct i3c_device; 30 struct irq_domain; 31 struct mdio_device; 32 struct slim_device; 33 struct spi_device; 34 struct spmi_device; 35 struct regmap; 36 struct regmap_range_cfg; 37 struct regmap_field; 38 struct snd_ac97; 39 struct sdw_slave; 40 41 /* 42 * regmap_mdio address encoding. IEEE 802.3ae clause 45 addresses consist of a 43 * device address and a register address. 44 */ 45 #define REGMAP_MDIO_C45_DEVAD_SHIFT 16 46 #define REGMAP_MDIO_C45_DEVAD_MASK GENMASK(20, 16) 47 #define REGMAP_MDIO_C45_REGNUM_MASK GENMASK(15, 0) 48 49 /* 50 * regmap.reg_shift indicates by how much we must shift registers prior to 51 * performing any operation. It's a signed value, positive numbers means 52 * downshifting the register's address, while negative numbers means upshifting. 53 */ 54 #define REGMAP_UPSHIFT(s) (-(s)) 55 #define REGMAP_DOWNSHIFT(s) (s) 56 57 /* An enum of all the supported cache types */ 58 enum regcache_type { 59 REGCACHE_NONE, 60 REGCACHE_RBTREE, 61 REGCACHE_FLAT, 62 REGCACHE_MAPLE, 63 }; 64 65 /** 66 * struct reg_default - Default value for a register. 67 * 68 * @reg: Register address. 69 * @def: Register default value. 70 * 71 * We use an array of structs rather than a simple array as many modern devices 72 * have very sparse register maps. 73 */ 74 struct reg_default { 75 unsigned int reg; 76 unsigned int def; 77 }; 78 79 /** 80 * struct reg_sequence - An individual write from a sequence of writes. 81 * 82 * @reg: Register address. 83 * @def: Register value. 84 * @delay_us: Delay to be applied after the register write in microseconds 85 * 86 * Register/value pairs for sequences of writes with an optional delay in 87 * microseconds to be applied after each write. 88 */ 89 struct reg_sequence { 90 unsigned int reg; 91 unsigned int def; 92 unsigned int delay_us; 93 }; 94 95 #define REG_SEQ(_reg, _def, _delay_us) { \ 96 .reg = _reg, \ 97 .def = _def, \ 98 .delay_us = _delay_us, \ 99 } 100 #define REG_SEQ0(_reg, _def) REG_SEQ(_reg, _def, 0) 101 102 /** 103 * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs 104 * 105 * @map: Regmap to read from 106 * @addr: Address to poll 107 * @val: Unsigned integer variable to read the value into 108 * @cond: Break condition (usually involving @val) 109 * @sleep_us: Maximum time to sleep between reads in us (0 110 * tight-loops). Should be less than ~20ms since usleep_range 111 * is used (see Documentation/timers/timers-howto.rst). 112 * @timeout_us: Timeout in us, 0 means never timeout 113 * 114 * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 115 * error return value in case of a error read. In the two former cases, 116 * the last read value at @addr is stored in @val. Must not be called 117 * from atomic context if sleep_us or timeout_us are used. 118 * 119 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 120 */ 121 #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ 122 ({ \ 123 int __ret, __tmp; \ 124 __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \ 125 sleep_us, timeout_us, false, (map), (addr), &(val)); \ 126 __ret ?: __tmp; \ 127 }) 128 129 /** 130 * regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs 131 * 132 * @map: Regmap to read from 133 * @addr: Address to poll 134 * @val: Unsigned integer variable to read the value into 135 * @cond: Break condition (usually involving @val) 136 * @delay_us: Time to udelay between reads in us (0 tight-loops). 137 * Should be less than ~10us since udelay is used 138 * (see Documentation/timers/timers-howto.rst). 139 * @timeout_us: Timeout in us, 0 means never timeout 140 * 141 * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 142 * error return value in case of a error read. In the two former cases, 143 * the last read value at @addr is stored in @val. 144 * 145 * This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h. 146 * 147 * Note: In general regmap cannot be used in atomic context. If you want to use 148 * this macro then first setup your regmap for atomic use (flat or no cache 149 * and MMIO regmap). 150 */ 151 #define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \ 152 ({ \ 153 u64 __timeout_us = (timeout_us); \ 154 unsigned long __delay_us = (delay_us); \ 155 ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ 156 int __ret; \ 157 for (;;) { \ 158 __ret = regmap_read((map), (addr), &(val)); \ 159 if (__ret) \ 160 break; \ 161 if (cond) \ 162 break; \ 163 if ((__timeout_us) && \ 164 ktime_compare(ktime_get(), __timeout) > 0) { \ 165 __ret = regmap_read((map), (addr), &(val)); \ 166 break; \ 167 } \ 168 if (__delay_us) \ 169 udelay(__delay_us); \ 170 } \ 171 __ret ?: ((cond) ? 0 : -ETIMEDOUT); \ 172 }) 173 174 /** 175 * regmap_field_read_poll_timeout - Poll until a condition is met or timeout 176 * 177 * @field: Regmap field to read from 178 * @val: Unsigned integer variable to read the value into 179 * @cond: Break condition (usually involving @val) 180 * @sleep_us: Maximum time to sleep between reads in us (0 181 * tight-loops). Should be less than ~20ms since usleep_range 182 * is used (see Documentation/timers/timers-howto.rst). 183 * @timeout_us: Timeout in us, 0 means never timeout 184 * 185 * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read 186 * error return value in case of a error read. In the two former cases, 187 * the last read value at @addr is stored in @val. Must not be called 188 * from atomic context if sleep_us or timeout_us are used. 189 * 190 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 191 */ 192 #define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \ 193 ({ \ 194 int __ret, __tmp; \ 195 __tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \ 196 sleep_us, timeout_us, false, (field), &(val)); \ 197 __ret ?: __tmp; \ 198 }) 199 200 #ifdef CONFIG_REGMAP 201 202 enum regmap_endian { 203 /* Unspecified -> 0 -> Backwards compatible default */ 204 REGMAP_ENDIAN_DEFAULT = 0, 205 REGMAP_ENDIAN_BIG, 206 REGMAP_ENDIAN_LITTLE, 207 REGMAP_ENDIAN_NATIVE, 208 }; 209 210 /** 211 * struct regmap_range - A register range, used for access related checks 212 * (readable/writeable/volatile/precious checks) 213 * 214 * @range_min: address of first register 215 * @range_max: address of last register 216 */ 217 struct regmap_range { 218 unsigned int range_min; 219 unsigned int range_max; 220 }; 221 222 #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } 223 224 /** 225 * struct regmap_access_table - A table of register ranges for access checks 226 * 227 * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" 228 * @n_yes_ranges: size of the above array 229 * @no_ranges: pointer to an array of regmap ranges used as "no ranges" 230 * @n_no_ranges: size of the above array 231 * 232 * A table of ranges including some yes ranges and some no ranges. 233 * If a register belongs to a no_range, the corresponding check function 234 * will return false. If a register belongs to a yes range, the corresponding 235 * check function will return true. "no_ranges" are searched first. 236 */ 237 struct regmap_access_table { 238 const struct regmap_range *yes_ranges; 239 unsigned int n_yes_ranges; 240 const struct regmap_range *no_ranges; 241 unsigned int n_no_ranges; 242 }; 243 244 typedef void (*regmap_lock)(void *); 245 typedef void (*regmap_unlock)(void *); 246 247 /** 248 * struct regmap_config - Configuration for the register map of a device. 249 * 250 * @name: Optional name of the regmap. Useful when a device has multiple 251 * register regions. 252 * 253 * @reg_bits: Number of bits in a register address, mandatory. 254 * @reg_stride: The register address stride. Valid register addresses are a 255 * multiple of this value. If set to 0, a value of 1 will be 256 * used. 257 * @reg_shift: The number of bits to shift the register before performing any 258 * operations. Any positive number will be downshifted, and negative 259 * values will be upshifted 260 * @reg_base: Value to be added to every register address before performing any 261 * operation. 262 * @pad_bits: Number of bits of padding between register and value. 263 * @val_bits: Number of bits in a register value, mandatory. 264 * 265 * @writeable_reg: Optional callback returning true if the register 266 * can be written to. If this field is NULL but wr_table 267 * (see below) is not, the check is performed on such table 268 * (a register is writeable if it belongs to one of the ranges 269 * specified by wr_table). 270 * @readable_reg: Optional callback returning true if the register 271 * can be read from. If this field is NULL but rd_table 272 * (see below) is not, the check is performed on such table 273 * (a register is readable if it belongs to one of the ranges 274 * specified by rd_table). 275 * @volatile_reg: Optional callback returning true if the register 276 * value can't be cached. If this field is NULL but 277 * volatile_table (see below) is not, the check is performed on 278 * such table (a register is volatile if it belongs to one of 279 * the ranges specified by volatile_table). 280 * @precious_reg: Optional callback returning true if the register 281 * should not be read outside of a call from the driver 282 * (e.g., a clear on read interrupt status register). If this 283 * field is NULL but precious_table (see below) is not, the 284 * check is performed on such table (a register is precious if 285 * it belongs to one of the ranges specified by precious_table). 286 * @writeable_noinc_reg: Optional callback returning true if the register 287 * supports multiple write operations without incrementing 288 * the register number. If this field is NULL but 289 * wr_noinc_table (see below) is not, the check is 290 * performed on such table (a register is no increment 291 * writeable if it belongs to one of the ranges specified 292 * by wr_noinc_table). 293 * @readable_noinc_reg: Optional callback returning true if the register 294 * supports multiple read operations without incrementing 295 * the register number. If this field is NULL but 296 * rd_noinc_table (see below) is not, the check is 297 * performed on such table (a register is no increment 298 * readable if it belongs to one of the ranges specified 299 * by rd_noinc_table). 300 * @reg_read: Optional callback that if filled will be used to perform 301 * all the reads from the registers. Should only be provided for 302 * devices whose read operation cannot be represented as a simple 303 * read operation on a bus such as SPI, I2C, etc. Most of the 304 * devices do not need this. 305 * @reg_write: Same as above for writing. 306 * @reg_update_bits: Optional callback that if filled will be used to perform 307 * all the update_bits(rmw) operation. Should only be provided 308 * if the function require special handling with lock and reg 309 * handling and the operation cannot be represented as a simple 310 * update_bits operation on a bus such as SPI, I2C, etc. 311 * @read: Optional callback that if filled will be used to perform all the 312 * bulk reads from the registers. Data is returned in the buffer used 313 * to transmit data. 314 * @write: Same as above for writing. 315 * @max_raw_read: Max raw read size that can be used on the device. 316 * @max_raw_write: Max raw write size that can be used on the device. 317 * @can_sleep: Optional, specifies whether regmap operations can sleep. 318 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 319 * to perform locking. This field is ignored if custom lock/unlock 320 * functions are used (see fields lock/unlock of struct regmap_config). 321 * This field is a duplicate of a similar file in 322 * 'struct regmap_bus' and serves exact same purpose. 323 * Use it only for "no-bus" cases. 324 * @io_port: Support IO port accessors. Makes sense only when MMIO vs. IO port 325 * access can be distinguished. 326 * @disable_locking: This regmap is either protected by external means or 327 * is guaranteed not to be accessed from multiple threads. 328 * Don't use any locking mechanisms. 329 * @lock: Optional lock callback (overrides regmap's default lock 330 * function, based on spinlock or mutex). 331 * @unlock: As above for unlocking. 332 * @lock_arg: This field is passed as the only argument of lock/unlock 333 * functions (ignored in case regular lock/unlock functions 334 * are not overridden). 335 * @max_register: Optional, specifies the maximum valid register address. 336 * @max_register_is_0: Optional, specifies that zero value in @max_register 337 * should be taken into account. This is a workaround to 338 * apply handling of @max_register for regmap that contains 339 * only one register. 340 * @wr_table: Optional, points to a struct regmap_access_table specifying 341 * valid ranges for write access. 342 * @rd_table: As above, for read access. 343 * @volatile_table: As above, for volatile registers. 344 * @precious_table: As above, for precious registers. 345 * @wr_noinc_table: As above, for no increment writeable registers. 346 * @rd_noinc_table: As above, for no increment readable registers. 347 * @reg_defaults: Power on reset values for registers (for use with 348 * register cache support). 349 * @num_reg_defaults: Number of elements in reg_defaults. 350 * 351 * @read_flag_mask: Mask to be set in the top bytes of the register when doing 352 * a read. 353 * @write_flag_mask: Mask to be set in the top bytes of the register when doing 354 * a write. If both read_flag_mask and write_flag_mask are 355 * empty and zero_flag_mask is not set the regmap_bus default 356 * masks are used. 357 * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even 358 * if they are both empty. 359 * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers. 360 * This can avoid load on devices which don't require strict 361 * orderings, but drivers should carefully add any explicit 362 * memory barriers when they may require them. 363 * @use_single_read: If set, converts the bulk read operation into a series of 364 * single read operations. This is useful for a device that 365 * does not support bulk read. 366 * @use_single_write: If set, converts the bulk write operation into a series of 367 * single write operations. This is useful for a device that 368 * does not support bulk write. 369 * @can_multi_write: If set, the device supports the multi write mode of bulk 370 * write operations, if clear multi write requests will be 371 * split into individual write operations 372 * 373 * @cache_type: The actual cache type. 374 * @reg_defaults_raw: Power on reset values for registers (for use with 375 * register cache support). 376 * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. 377 * @use_hwlock: Indicate if a hardware spinlock should be used. 378 * @use_raw_spinlock: Indicate if a raw spinlock should be used. 379 * @hwlock_id: Specify the hardware spinlock id. 380 * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE, 381 * HWLOCK_IRQ or 0. 382 * @reg_format_endian: Endianness for formatted register addresses. If this is 383 * DEFAULT, the @reg_format_endian_default value from the 384 * regmap bus is used. 385 * @val_format_endian: Endianness for formatted register values. If this is 386 * DEFAULT, the @reg_format_endian_default value from the 387 * regmap bus is used. 388 * 389 * @ranges: Array of configuration entries for virtual address ranges. 390 * @num_ranges: Number of range configuration entries. 391 */ 392 struct regmap_config { 393 const char *name; 394 395 int reg_bits; 396 int reg_stride; 397 int reg_shift; 398 unsigned int reg_base; 399 int pad_bits; 400 int val_bits; 401 402 bool (*writeable_reg)(struct device *dev, unsigned int reg); 403 bool (*readable_reg)(struct device *dev, unsigned int reg); 404 bool (*volatile_reg)(struct device *dev, unsigned int reg); 405 bool (*precious_reg)(struct device *dev, unsigned int reg); 406 bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg); 407 bool (*readable_noinc_reg)(struct device *dev, unsigned int reg); 408 409 int (*reg_read)(void *context, unsigned int reg, unsigned int *val); 410 int (*reg_write)(void *context, unsigned int reg, unsigned int val); 411 int (*reg_update_bits)(void *context, unsigned int reg, 412 unsigned int mask, unsigned int val); 413 /* Bulk read/write */ 414 int (*read)(void *context, const void *reg_buf, size_t reg_size, 415 void *val_buf, size_t val_size); 416 int (*write)(void *context, const void *data, size_t count); 417 size_t max_raw_read; 418 size_t max_raw_write; 419 420 bool can_sleep; 421 422 bool fast_io; 423 bool io_port; 424 425 bool disable_locking; 426 regmap_lock lock; 427 regmap_unlock unlock; 428 void *lock_arg; 429 430 unsigned int max_register; 431 bool max_register_is_0; 432 const struct regmap_access_table *wr_table; 433 const struct regmap_access_table *rd_table; 434 const struct regmap_access_table *volatile_table; 435 const struct regmap_access_table *precious_table; 436 const struct regmap_access_table *wr_noinc_table; 437 const struct regmap_access_table *rd_noinc_table; 438 const struct reg_default *reg_defaults; 439 unsigned int num_reg_defaults; 440 enum regcache_type cache_type; 441 const void *reg_defaults_raw; 442 unsigned int num_reg_defaults_raw; 443 444 unsigned long read_flag_mask; 445 unsigned long write_flag_mask; 446 bool zero_flag_mask; 447 448 bool use_single_read; 449 bool use_single_write; 450 bool use_relaxed_mmio; 451 bool can_multi_write; 452 453 bool use_hwlock; 454 bool use_raw_spinlock; 455 unsigned int hwlock_id; 456 unsigned int hwlock_mode; 457 458 enum regmap_endian reg_format_endian; 459 enum regmap_endian val_format_endian; 460 461 const struct regmap_range_cfg *ranges; 462 unsigned int num_ranges; 463 }; 464 465 /** 466 * struct regmap_range_cfg - Configuration for indirectly accessed or paged 467 * registers. 468 * 469 * @name: Descriptive name for diagnostics 470 * 471 * @range_min: Address of the lowest register address in virtual range. 472 * @range_max: Address of the highest register in virtual range. 473 * 474 * @selector_reg: Register with selector field. 475 * @selector_mask: Bit mask for selector value. 476 * @selector_shift: Bit shift for selector value. 477 * 478 * @window_start: Address of first (lowest) register in data window. 479 * @window_len: Number of registers in data window. 480 * 481 * Registers, mapped to this virtual range, are accessed in two steps: 482 * 1. page selector register update; 483 * 2. access through data window registers. 484 */ 485 struct regmap_range_cfg { 486 const char *name; 487 488 /* Registers of virtual address range */ 489 unsigned int range_min; 490 unsigned int range_max; 491 492 /* Page selector for indirect addressing */ 493 unsigned int selector_reg; 494 unsigned int selector_mask; 495 int selector_shift; 496 497 /* Data window (per each page) */ 498 unsigned int window_start; 499 unsigned int window_len; 500 }; 501 502 struct regmap_async; 503 504 typedef int (*regmap_hw_write)(void *context, const void *data, 505 size_t count); 506 typedef int (*regmap_hw_gather_write)(void *context, 507 const void *reg, size_t reg_len, 508 const void *val, size_t val_len); 509 typedef int (*regmap_hw_async_write)(void *context, 510 const void *reg, size_t reg_len, 511 const void *val, size_t val_len, 512 struct regmap_async *async); 513 typedef int (*regmap_hw_read)(void *context, 514 const void *reg_buf, size_t reg_size, 515 void *val_buf, size_t val_size); 516 typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, 517 unsigned int *val); 518 typedef int (*regmap_hw_reg_noinc_read)(void *context, unsigned int reg, 519 void *val, size_t val_count); 520 typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, 521 unsigned int val); 522 typedef int (*regmap_hw_reg_noinc_write)(void *context, unsigned int reg, 523 const void *val, size_t val_count); 524 typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, 525 unsigned int mask, unsigned int val); 526 typedef struct regmap_async *(*regmap_hw_async_alloc)(void); 527 typedef void (*regmap_hw_free_context)(void *context); 528 529 /** 530 * struct regmap_bus - Description of a hardware bus for the register map 531 * infrastructure. 532 * 533 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 534 * to perform locking. This field is ignored if custom lock/unlock 535 * functions are used (see fields lock/unlock of 536 * struct regmap_config). 537 * @free_on_exit: kfree this on exit of regmap 538 * @write: Write operation. 539 * @gather_write: Write operation with split register/value, return -ENOTSUPP 540 * if not implemented on a given device. 541 * @async_write: Write operation which completes asynchronously, optional and 542 * must serialise with respect to non-async I/O. 543 * @reg_write: Write a single register value to the given register address. This 544 * write operation has to complete when returning from the function. 545 * @reg_write_noinc: Write multiple register value to the same register. This 546 * write operation has to complete when returning from the function. 547 * @reg_update_bits: Update bits operation to be used against volatile 548 * registers, intended for devices supporting some mechanism 549 * for setting clearing bits without having to 550 * read/modify/write. 551 * @read: Read operation. Data is returned in the buffer used to transmit 552 * data. 553 * @reg_read: Read a single register value from a given register address. 554 * @free_context: Free context. 555 * @async_alloc: Allocate a regmap_async() structure. 556 * @read_flag_mask: Mask to be set in the top byte of the register when doing 557 * a read. 558 * @reg_format_endian_default: Default endianness for formatted register 559 * addresses. Used when the regmap_config specifies DEFAULT. If this is 560 * DEFAULT, BIG is assumed. 561 * @val_format_endian_default: Default endianness for formatted register 562 * values. Used when the regmap_config specifies DEFAULT. If this is 563 * DEFAULT, BIG is assumed. 564 * @max_raw_read: Max raw read size that can be used on the bus. 565 * @max_raw_write: Max raw write size that can be used on the bus. 566 */ 567 struct regmap_bus { 568 bool fast_io; 569 bool free_on_exit; 570 regmap_hw_write write; 571 regmap_hw_gather_write gather_write; 572 regmap_hw_async_write async_write; 573 regmap_hw_reg_write reg_write; 574 regmap_hw_reg_noinc_write reg_noinc_write; 575 regmap_hw_reg_update_bits reg_update_bits; 576 regmap_hw_read read; 577 regmap_hw_reg_read reg_read; 578 regmap_hw_reg_noinc_read reg_noinc_read; 579 regmap_hw_free_context free_context; 580 regmap_hw_async_alloc async_alloc; 581 u8 read_flag_mask; 582 enum regmap_endian reg_format_endian_default; 583 enum regmap_endian val_format_endian_default; 584 size_t max_raw_read; 585 size_t max_raw_write; 586 }; 587 588 /* 589 * __regmap_init functions. 590 * 591 * These functions take a lock key and name parameter, and should not be called 592 * directly. Instead, use the regmap_init macros that generate a key and name 593 * for each call. 594 */ 595 struct regmap *__regmap_init(struct device *dev, 596 const struct regmap_bus *bus, 597 void *bus_context, 598 const struct regmap_config *config, 599 struct lock_class_key *lock_key, 600 const char *lock_name); 601 struct regmap *__regmap_init_i2c(struct i2c_client *i2c, 602 const struct regmap_config *config, 603 struct lock_class_key *lock_key, 604 const char *lock_name); 605 struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev, 606 const struct regmap_config *config, 607 struct lock_class_key *lock_key, 608 const char *lock_name); 609 struct regmap *__regmap_init_sccb(struct i2c_client *i2c, 610 const struct regmap_config *config, 611 struct lock_class_key *lock_key, 612 const char *lock_name); 613 struct regmap *__regmap_init_slimbus(struct slim_device *slimbus, 614 const struct regmap_config *config, 615 struct lock_class_key *lock_key, 616 const char *lock_name); 617 struct regmap *__regmap_init_spi(struct spi_device *dev, 618 const struct regmap_config *config, 619 struct lock_class_key *lock_key, 620 const char *lock_name); 621 struct regmap *__regmap_init_spmi_base(struct spmi_device *dev, 622 const struct regmap_config *config, 623 struct lock_class_key *lock_key, 624 const char *lock_name); 625 struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev, 626 const struct regmap_config *config, 627 struct lock_class_key *lock_key, 628 const char *lock_name); 629 struct regmap *__regmap_init_w1(struct device *w1_dev, 630 const struct regmap_config *config, 631 struct lock_class_key *lock_key, 632 const char *lock_name); 633 struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, 634 void __iomem *regs, 635 const struct regmap_config *config, 636 struct lock_class_key *lock_key, 637 const char *lock_name); 638 struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, 639 const struct regmap_config *config, 640 struct lock_class_key *lock_key, 641 const char *lock_name); 642 struct regmap *__regmap_init_sdw(struct sdw_slave *sdw, 643 const struct regmap_config *config, 644 struct lock_class_key *lock_key, 645 const char *lock_name); 646 struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw, 647 const struct regmap_config *config, 648 struct lock_class_key *lock_key, 649 const char *lock_name); 650 struct regmap *__regmap_init_spi_avmm(struct spi_device *spi, 651 const struct regmap_config *config, 652 struct lock_class_key *lock_key, 653 const char *lock_name); 654 struct regmap *__regmap_init_fsi(struct fsi_device *fsi_dev, 655 const struct regmap_config *config, 656 struct lock_class_key *lock_key, 657 const char *lock_name); 658 659 struct regmap *__devm_regmap_init(struct device *dev, 660 const struct regmap_bus *bus, 661 void *bus_context, 662 const struct regmap_config *config, 663 struct lock_class_key *lock_key, 664 const char *lock_name); 665 struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, 666 const struct regmap_config *config, 667 struct lock_class_key *lock_key, 668 const char *lock_name); 669 struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev, 670 const struct regmap_config *config, 671 struct lock_class_key *lock_key, 672 const char *lock_name); 673 struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c, 674 const struct regmap_config *config, 675 struct lock_class_key *lock_key, 676 const char *lock_name); 677 struct regmap *__devm_regmap_init_spi(struct spi_device *dev, 678 const struct regmap_config *config, 679 struct lock_class_key *lock_key, 680 const char *lock_name); 681 struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev, 682 const struct regmap_config *config, 683 struct lock_class_key *lock_key, 684 const char *lock_name); 685 struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev, 686 const struct regmap_config *config, 687 struct lock_class_key *lock_key, 688 const char *lock_name); 689 struct regmap *__devm_regmap_init_w1(struct device *w1_dev, 690 const struct regmap_config *config, 691 struct lock_class_key *lock_key, 692 const char *lock_name); 693 struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, 694 const char *clk_id, 695 void __iomem *regs, 696 const struct regmap_config *config, 697 struct lock_class_key *lock_key, 698 const char *lock_name); 699 struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, 700 const struct regmap_config *config, 701 struct lock_class_key *lock_key, 702 const char *lock_name); 703 struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw, 704 const struct regmap_config *config, 705 struct lock_class_key *lock_key, 706 const char *lock_name); 707 struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw, 708 const struct regmap_config *config, 709 struct lock_class_key *lock_key, 710 const char *lock_name); 711 struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, 712 const struct regmap_config *config, 713 struct lock_class_key *lock_key, 714 const char *lock_name); 715 struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, 716 const struct regmap_config *config, 717 struct lock_class_key *lock_key, 718 const char *lock_name); 719 struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi, 720 const struct regmap_config *config, 721 struct lock_class_key *lock_key, 722 const char *lock_name); 723 struct regmap *__devm_regmap_init_fsi(struct fsi_device *fsi_dev, 724 const struct regmap_config *config, 725 struct lock_class_key *lock_key, 726 const char *lock_name); 727 728 /* 729 * Wrapper for regmap_init macros to include a unique lockdep key and name 730 * for each call. No-op if CONFIG_LOCKDEP is not set. 731 * 732 * @fn: Real function to call (in the form __[*_]regmap_init[_*]) 733 * @name: Config variable name (#config in the calling macro) 734 **/ 735 #ifdef CONFIG_LOCKDEP 736 #define __regmap_lockdep_wrapper(fn, name, ...) \ 737 ( \ 738 ({ \ 739 static struct lock_class_key _key; \ 740 fn(__VA_ARGS__, &_key, \ 741 KBUILD_BASENAME ":" \ 742 __stringify(__LINE__) ":" \ 743 "(" name ")->lock"); \ 744 }) \ 745 ) 746 #else 747 #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL) 748 #endif 749 750 /** 751 * regmap_init() - Initialise register map 752 * 753 * @dev: Device that will be interacted with 754 * @bus: Bus-specific callbacks to use with device 755 * @bus_context: Data passed to bus-specific callbacks 756 * @config: Configuration for register map 757 * 758 * The return value will be an ERR_PTR() on error or a valid pointer to 759 * a struct regmap. This function should generally not be called 760 * directly, it should be called by bus-specific init functions. 761 */ 762 #define regmap_init(dev, bus, bus_context, config) \ 763 __regmap_lockdep_wrapper(__regmap_init, #config, \ 764 dev, bus, bus_context, config) 765 int regmap_attach_dev(struct device *dev, struct regmap *map, 766 const struct regmap_config *config); 767 768 /** 769 * regmap_init_i2c() - Initialise register map 770 * 771 * @i2c: Device that will be interacted with 772 * @config: Configuration for register map 773 * 774 * The return value will be an ERR_PTR() on error or a valid pointer to 775 * a struct regmap. 776 */ 777 #define regmap_init_i2c(i2c, config) \ 778 __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ 779 i2c, config) 780 781 /** 782 * regmap_init_mdio() - Initialise register map 783 * 784 * @mdio_dev: Device that will be interacted with 785 * @config: Configuration for register map 786 * 787 * The return value will be an ERR_PTR() on error or a valid pointer to 788 * a struct regmap. 789 */ 790 #define regmap_init_mdio(mdio_dev, config) \ 791 __regmap_lockdep_wrapper(__regmap_init_mdio, #config, \ 792 mdio_dev, config) 793 794 /** 795 * regmap_init_sccb() - Initialise register map 796 * 797 * @i2c: Device that will be interacted with 798 * @config: Configuration for register map 799 * 800 * The return value will be an ERR_PTR() on error or a valid pointer to 801 * a struct regmap. 802 */ 803 #define regmap_init_sccb(i2c, config) \ 804 __regmap_lockdep_wrapper(__regmap_init_sccb, #config, \ 805 i2c, config) 806 807 /** 808 * regmap_init_slimbus() - Initialise register map 809 * 810 * @slimbus: Device that will be interacted with 811 * @config: Configuration for register map 812 * 813 * The return value will be an ERR_PTR() on error or a valid pointer to 814 * a struct regmap. 815 */ 816 #define regmap_init_slimbus(slimbus, config) \ 817 __regmap_lockdep_wrapper(__regmap_init_slimbus, #config, \ 818 slimbus, config) 819 820 /** 821 * regmap_init_spi() - Initialise register map 822 * 823 * @dev: Device that will be interacted with 824 * @config: Configuration for register map 825 * 826 * The return value will be an ERR_PTR() on error or a valid pointer to 827 * a struct regmap. 828 */ 829 #define regmap_init_spi(dev, config) \ 830 __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ 831 dev, config) 832 833 /** 834 * regmap_init_spmi_base() - Create regmap for the Base register space 835 * 836 * @dev: SPMI device that will be interacted with 837 * @config: Configuration for register map 838 * 839 * The return value will be an ERR_PTR() on error or a valid pointer to 840 * a struct regmap. 841 */ 842 #define regmap_init_spmi_base(dev, config) \ 843 __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ 844 dev, config) 845 846 /** 847 * regmap_init_spmi_ext() - Create regmap for Ext register space 848 * 849 * @dev: Device that will be interacted with 850 * @config: Configuration for register map 851 * 852 * The return value will be an ERR_PTR() on error or a valid pointer to 853 * a struct regmap. 854 */ 855 #define regmap_init_spmi_ext(dev, config) \ 856 __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ 857 dev, config) 858 859 /** 860 * regmap_init_w1() - Initialise register map 861 * 862 * @w1_dev: Device that will be interacted with 863 * @config: Configuration for register map 864 * 865 * The return value will be an ERR_PTR() on error or a valid pointer to 866 * a struct regmap. 867 */ 868 #define regmap_init_w1(w1_dev, config) \ 869 __regmap_lockdep_wrapper(__regmap_init_w1, #config, \ 870 w1_dev, config) 871 872 /** 873 * regmap_init_mmio_clk() - Initialise register map with register clock 874 * 875 * @dev: Device that will be interacted with 876 * @clk_id: register clock consumer ID 877 * @regs: Pointer to memory-mapped IO region 878 * @config: Configuration for register map 879 * 880 * The return value will be an ERR_PTR() on error or a valid pointer to 881 * a struct regmap. 882 */ 883 #define regmap_init_mmio_clk(dev, clk_id, regs, config) \ 884 __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ 885 dev, clk_id, regs, config) 886 887 /** 888 * regmap_init_mmio() - Initialise register map 889 * 890 * @dev: Device that will be interacted with 891 * @regs: Pointer to memory-mapped IO region 892 * @config: Configuration for register map 893 * 894 * The return value will be an ERR_PTR() on error or a valid pointer to 895 * a struct regmap. 896 */ 897 #define regmap_init_mmio(dev, regs, config) \ 898 regmap_init_mmio_clk(dev, NULL, regs, config) 899 900 /** 901 * regmap_init_ac97() - Initialise AC'97 register map 902 * 903 * @ac97: Device that will be interacted with 904 * @config: Configuration for register map 905 * 906 * The return value will be an ERR_PTR() on error or a valid pointer to 907 * a struct regmap. 908 */ 909 #define regmap_init_ac97(ac97, config) \ 910 __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \ 911 ac97, config) 912 bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); 913 914 /** 915 * regmap_init_sdw() - Initialise register map 916 * 917 * @sdw: Device that will be interacted with 918 * @config: Configuration for register map 919 * 920 * The return value will be an ERR_PTR() on error or a valid pointer to 921 * a struct regmap. 922 */ 923 #define regmap_init_sdw(sdw, config) \ 924 __regmap_lockdep_wrapper(__regmap_init_sdw, #config, \ 925 sdw, config) 926 927 /** 928 * regmap_init_sdw_mbq() - Initialise register map 929 * 930 * @sdw: Device that will be interacted with 931 * @config: Configuration for register map 932 * 933 * The return value will be an ERR_PTR() on error or a valid pointer to 934 * a struct regmap. 935 */ 936 #define regmap_init_sdw_mbq(sdw, config) \ 937 __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ 938 sdw, config) 939 940 /** 941 * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 942 * to AVMM Bus Bridge 943 * 944 * @spi: Device that will be interacted with 945 * @config: Configuration for register map 946 * 947 * The return value will be an ERR_PTR() on error or a valid pointer 948 * to a struct regmap. 949 */ 950 #define regmap_init_spi_avmm(spi, config) \ 951 __regmap_lockdep_wrapper(__regmap_init_spi_avmm, #config, \ 952 spi, config) 953 954 /** 955 * regmap_init_fsi() - Initialise register map 956 * 957 * @fsi_dev: Device that will be interacted with 958 * @config: Configuration for register map 959 * 960 * The return value will be an ERR_PTR() on error or a valid pointer to 961 * a struct regmap. 962 */ 963 #define regmap_init_fsi(fsi_dev, config) \ 964 __regmap_lockdep_wrapper(__regmap_init_fsi, #config, fsi_dev, \ 965 config) 966 967 /** 968 * devm_regmap_init() - Initialise managed register map 969 * 970 * @dev: Device that will be interacted with 971 * @bus: Bus-specific callbacks to use with device 972 * @bus_context: Data passed to bus-specific callbacks 973 * @config: Configuration for register map 974 * 975 * The return value will be an ERR_PTR() on error or a valid pointer 976 * to a struct regmap. This function should generally not be called 977 * directly, it should be called by bus-specific init functions. The 978 * map will be automatically freed by the device management code. 979 */ 980 #define devm_regmap_init(dev, bus, bus_context, config) \ 981 __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ 982 dev, bus, bus_context, config) 983 984 /** 985 * devm_regmap_init_i2c() - Initialise managed register map 986 * 987 * @i2c: Device that will be interacted with 988 * @config: Configuration for register map 989 * 990 * The return value will be an ERR_PTR() on error or a valid pointer 991 * to a struct regmap. The regmap will be automatically freed by the 992 * device management code. 993 */ 994 #define devm_regmap_init_i2c(i2c, config) \ 995 __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ 996 i2c, config) 997 998 /** 999 * devm_regmap_init_mdio() - Initialise managed register map 1000 * 1001 * @mdio_dev: Device that will be interacted with 1002 * @config: Configuration for register map 1003 * 1004 * The return value will be an ERR_PTR() on error or a valid pointer 1005 * to a struct regmap. The regmap will be automatically freed by the 1006 * device management code. 1007 */ 1008 #define devm_regmap_init_mdio(mdio_dev, config) \ 1009 __regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config, \ 1010 mdio_dev, config) 1011 1012 /** 1013 * devm_regmap_init_sccb() - Initialise managed register map 1014 * 1015 * @i2c: Device that will be interacted with 1016 * @config: Configuration for register map 1017 * 1018 * The return value will be an ERR_PTR() on error or a valid pointer 1019 * to a struct regmap. The regmap will be automatically freed by the 1020 * device management code. 1021 */ 1022 #define devm_regmap_init_sccb(i2c, config) \ 1023 __regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config, \ 1024 i2c, config) 1025 1026 /** 1027 * devm_regmap_init_spi() - Initialise register map 1028 * 1029 * @dev: Device that will be interacted with 1030 * @config: Configuration for register map 1031 * 1032 * The return value will be an ERR_PTR() on error or a valid pointer 1033 * to a struct regmap. The map will be automatically freed by the 1034 * device management code. 1035 */ 1036 #define devm_regmap_init_spi(dev, config) \ 1037 __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ 1038 dev, config) 1039 1040 /** 1041 * devm_regmap_init_spmi_base() - Create managed regmap for Base register space 1042 * 1043 * @dev: SPMI device that will be interacted with 1044 * @config: Configuration for register map 1045 * 1046 * The return value will be an ERR_PTR() on error or a valid pointer 1047 * to a struct regmap. The regmap will be automatically freed by the 1048 * device management code. 1049 */ 1050 #define devm_regmap_init_spmi_base(dev, config) \ 1051 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ 1052 dev, config) 1053 1054 /** 1055 * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space 1056 * 1057 * @dev: SPMI device that will be interacted with 1058 * @config: Configuration for register map 1059 * 1060 * The return value will be an ERR_PTR() on error or a valid pointer 1061 * to a struct regmap. The regmap will be automatically freed by the 1062 * device management code. 1063 */ 1064 #define devm_regmap_init_spmi_ext(dev, config) \ 1065 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ 1066 dev, config) 1067 1068 /** 1069 * devm_regmap_init_w1() - Initialise managed register map 1070 * 1071 * @w1_dev: Device that will be interacted with 1072 * @config: Configuration for register map 1073 * 1074 * The return value will be an ERR_PTR() on error or a valid pointer 1075 * to a struct regmap. The regmap will be automatically freed by the 1076 * device management code. 1077 */ 1078 #define devm_regmap_init_w1(w1_dev, config) \ 1079 __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config, \ 1080 w1_dev, config) 1081 /** 1082 * devm_regmap_init_mmio_clk() - Initialise managed register map with clock 1083 * 1084 * @dev: Device that will be interacted with 1085 * @clk_id: register clock consumer ID 1086 * @regs: Pointer to memory-mapped IO region 1087 * @config: Configuration for register map 1088 * 1089 * The return value will be an ERR_PTR() on error or a valid pointer 1090 * to a struct regmap. The regmap will be automatically freed by the 1091 * device management code. 1092 */ 1093 #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \ 1094 __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \ 1095 dev, clk_id, regs, config) 1096 1097 /** 1098 * devm_regmap_init_mmio() - Initialise managed register map 1099 * 1100 * @dev: Device that will be interacted with 1101 * @regs: Pointer to memory-mapped IO region 1102 * @config: Configuration for register map 1103 * 1104 * The return value will be an ERR_PTR() on error or a valid pointer 1105 * to a struct regmap. The regmap will be automatically freed by the 1106 * device management code. 1107 */ 1108 #define devm_regmap_init_mmio(dev, regs, config) \ 1109 devm_regmap_init_mmio_clk(dev, NULL, regs, config) 1110 1111 /** 1112 * devm_regmap_init_ac97() - Initialise AC'97 register map 1113 * 1114 * @ac97: Device that will be interacted with 1115 * @config: Configuration for register map 1116 * 1117 * The return value will be an ERR_PTR() on error or a valid pointer 1118 * to a struct regmap. The regmap will be automatically freed by the 1119 * device management code. 1120 */ 1121 #define devm_regmap_init_ac97(ac97, config) \ 1122 __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ 1123 ac97, config) 1124 1125 /** 1126 * devm_regmap_init_sdw() - Initialise managed register map 1127 * 1128 * @sdw: Device that will be interacted with 1129 * @config: Configuration for register map 1130 * 1131 * The return value will be an ERR_PTR() on error or a valid pointer 1132 * to a struct regmap. The regmap will be automatically freed by the 1133 * device management code. 1134 */ 1135 #define devm_regmap_init_sdw(sdw, config) \ 1136 __regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \ 1137 sdw, config) 1138 1139 /** 1140 * devm_regmap_init_sdw_mbq() - Initialise managed register map 1141 * 1142 * @sdw: Device that will be interacted with 1143 * @config: Configuration for register map 1144 * 1145 * The return value will be an ERR_PTR() on error or a valid pointer 1146 * to a struct regmap. The regmap will be automatically freed by the 1147 * device management code. 1148 */ 1149 #define devm_regmap_init_sdw_mbq(sdw, config) \ 1150 __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config, \ 1151 sdw, config) 1152 1153 /** 1154 * devm_regmap_init_slimbus() - Initialise managed register map 1155 * 1156 * @slimbus: Device that will be interacted with 1157 * @config: Configuration for register map 1158 * 1159 * The return value will be an ERR_PTR() on error or a valid pointer 1160 * to a struct regmap. The regmap will be automatically freed by the 1161 * device management code. 1162 */ 1163 #define devm_regmap_init_slimbus(slimbus, config) \ 1164 __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \ 1165 slimbus, config) 1166 1167 /** 1168 * devm_regmap_init_i3c() - Initialise managed register map 1169 * 1170 * @i3c: Device that will be interacted with 1171 * @config: Configuration for register map 1172 * 1173 * The return value will be an ERR_PTR() on error or a valid pointer 1174 * to a struct regmap. The regmap will be automatically freed by the 1175 * device management code. 1176 */ 1177 #define devm_regmap_init_i3c(i3c, config) \ 1178 __regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config, \ 1179 i3c, config) 1180 1181 /** 1182 * devm_regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 1183 * to AVMM Bus Bridge 1184 * 1185 * @spi: Device that will be interacted with 1186 * @config: Configuration for register map 1187 * 1188 * The return value will be an ERR_PTR() on error or a valid pointer 1189 * to a struct regmap. The map will be automatically freed by the 1190 * device management code. 1191 */ 1192 #define devm_regmap_init_spi_avmm(spi, config) \ 1193 __regmap_lockdep_wrapper(__devm_regmap_init_spi_avmm, #config, \ 1194 spi, config) 1195 1196 /** 1197 * devm_regmap_init_fsi() - Initialise managed register map 1198 * 1199 * @fsi_dev: Device that will be interacted with 1200 * @config: Configuration for register map 1201 * 1202 * The return value will be an ERR_PTR() on error or a valid pointer 1203 * to a struct regmap. The regmap will be automatically freed by the 1204 * device management code. 1205 */ 1206 #define devm_regmap_init_fsi(fsi_dev, config) \ 1207 __regmap_lockdep_wrapper(__devm_regmap_init_fsi, #config, \ 1208 fsi_dev, config) 1209 1210 int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); 1211 void regmap_mmio_detach_clk(struct regmap *map); 1212 void regmap_exit(struct regmap *map); 1213 int regmap_reinit_cache(struct regmap *map, 1214 const struct regmap_config *config); 1215 struct regmap *dev_get_regmap(struct device *dev, const char *name); 1216 struct device *regmap_get_device(struct regmap *map); 1217 int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); 1218 int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); 1219 int regmap_raw_write(struct regmap *map, unsigned int reg, 1220 const void *val, size_t val_len); 1221 int regmap_noinc_write(struct regmap *map, unsigned int reg, 1222 const void *val, size_t val_len); 1223 int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, 1224 size_t val_count); 1225 int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, 1226 int num_regs); 1227 int regmap_multi_reg_write_bypassed(struct regmap *map, 1228 const struct reg_sequence *regs, 1229 int num_regs); 1230 int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1231 const void *val, size_t val_len); 1232 int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); 1233 int regmap_read_bypassed(struct regmap *map, unsigned int reg, unsigned int *val); 1234 int regmap_raw_read(struct regmap *map, unsigned int reg, 1235 void *val, size_t val_len); 1236 int regmap_noinc_read(struct regmap *map, unsigned int reg, 1237 void *val, size_t val_len); 1238 int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, 1239 size_t val_count); 1240 int regmap_multi_reg_read(struct regmap *map, unsigned int *reg, void *val, 1241 size_t val_count); 1242 int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1243 unsigned int mask, unsigned int val, 1244 bool *change, bool async, bool force); 1245 1246 static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1247 unsigned int mask, unsigned int val) 1248 { 1249 return regmap_update_bits_base(map, reg, mask, val, NULL, false, false); 1250 } 1251 1252 static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg, 1253 unsigned int mask, unsigned int val) 1254 { 1255 return regmap_update_bits_base(map, reg, mask, val, NULL, true, false); 1256 } 1257 1258 static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1259 unsigned int mask, unsigned int val, 1260 bool *change) 1261 { 1262 return regmap_update_bits_base(map, reg, mask, val, 1263 change, false, false); 1264 } 1265 1266 static inline int 1267 regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1268 unsigned int mask, unsigned int val, 1269 bool *change) 1270 { 1271 return regmap_update_bits_base(map, reg, mask, val, 1272 change, true, false); 1273 } 1274 1275 static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1276 unsigned int mask, unsigned int val) 1277 { 1278 return regmap_update_bits_base(map, reg, mask, val, NULL, false, true); 1279 } 1280 1281 int regmap_get_val_bytes(struct regmap *map); 1282 int regmap_get_max_register(struct regmap *map); 1283 int regmap_get_reg_stride(struct regmap *map); 1284 bool regmap_might_sleep(struct regmap *map); 1285 int regmap_async_complete(struct regmap *map); 1286 bool regmap_can_raw_write(struct regmap *map); 1287 size_t regmap_get_raw_read_max(struct regmap *map); 1288 size_t regmap_get_raw_write_max(struct regmap *map); 1289 1290 int regcache_sync(struct regmap *map); 1291 int regcache_sync_region(struct regmap *map, unsigned int min, 1292 unsigned int max); 1293 int regcache_drop_region(struct regmap *map, unsigned int min, 1294 unsigned int max); 1295 void regcache_cache_only(struct regmap *map, bool enable); 1296 void regcache_cache_bypass(struct regmap *map, bool enable); 1297 void regcache_mark_dirty(struct regmap *map); 1298 bool regcache_reg_cached(struct regmap *map, unsigned int reg); 1299 1300 bool regmap_check_range_table(struct regmap *map, unsigned int reg, 1301 const struct regmap_access_table *table); 1302 1303 int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs, 1304 int num_regs); 1305 int regmap_parse_val(struct regmap *map, const void *buf, 1306 unsigned int *val); 1307 1308 static inline bool regmap_reg_in_range(unsigned int reg, 1309 const struct regmap_range *range) 1310 { 1311 return reg >= range->range_min && reg <= range->range_max; 1312 } 1313 1314 bool regmap_reg_in_ranges(unsigned int reg, 1315 const struct regmap_range *ranges, 1316 unsigned int nranges); 1317 1318 static inline int regmap_set_bits(struct regmap *map, 1319 unsigned int reg, unsigned int bits) 1320 { 1321 return regmap_update_bits_base(map, reg, bits, bits, 1322 NULL, false, false); 1323 } 1324 1325 static inline int regmap_clear_bits(struct regmap *map, 1326 unsigned int reg, unsigned int bits) 1327 { 1328 return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false); 1329 } 1330 1331 int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits); 1332 1333 /** 1334 * struct reg_field - Description of an register field 1335 * 1336 * @reg: Offset of the register within the regmap bank 1337 * @lsb: lsb of the register field. 1338 * @msb: msb of the register field. 1339 * @id_size: port size if it has some ports 1340 * @id_offset: address offset for each ports 1341 */ 1342 struct reg_field { 1343 unsigned int reg; 1344 unsigned int lsb; 1345 unsigned int msb; 1346 unsigned int id_size; 1347 unsigned int id_offset; 1348 }; 1349 1350 #define REG_FIELD(_reg, _lsb, _msb) { \ 1351 .reg = _reg, \ 1352 .lsb = _lsb, \ 1353 .msb = _msb, \ 1354 } 1355 1356 #define REG_FIELD_ID(_reg, _lsb, _msb, _size, _offset) { \ 1357 .reg = _reg, \ 1358 .lsb = _lsb, \ 1359 .msb = _msb, \ 1360 .id_size = _size, \ 1361 .id_offset = _offset, \ 1362 } 1363 1364 struct regmap_field *regmap_field_alloc(struct regmap *regmap, 1365 struct reg_field reg_field); 1366 void regmap_field_free(struct regmap_field *field); 1367 1368 struct regmap_field *devm_regmap_field_alloc(struct device *dev, 1369 struct regmap *regmap, struct reg_field reg_field); 1370 void devm_regmap_field_free(struct device *dev, struct regmap_field *field); 1371 1372 int regmap_field_bulk_alloc(struct regmap *regmap, 1373 struct regmap_field **rm_field, 1374 const struct reg_field *reg_field, 1375 int num_fields); 1376 void regmap_field_bulk_free(struct regmap_field *field); 1377 int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap, 1378 struct regmap_field **field, 1379 const struct reg_field *reg_field, 1380 int num_fields); 1381 void devm_regmap_field_bulk_free(struct device *dev, 1382 struct regmap_field *field); 1383 1384 int regmap_field_read(struct regmap_field *field, unsigned int *val); 1385 int regmap_field_update_bits_base(struct regmap_field *field, 1386 unsigned int mask, unsigned int val, 1387 bool *change, bool async, bool force); 1388 int regmap_fields_read(struct regmap_field *field, unsigned int id, 1389 unsigned int *val); 1390 int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, 1391 unsigned int mask, unsigned int val, 1392 bool *change, bool async, bool force); 1393 1394 static inline int regmap_field_write(struct regmap_field *field, 1395 unsigned int val) 1396 { 1397 return regmap_field_update_bits_base(field, ~0, val, 1398 NULL, false, false); 1399 } 1400 1401 static inline int regmap_field_force_write(struct regmap_field *field, 1402 unsigned int val) 1403 { 1404 return regmap_field_update_bits_base(field, ~0, val, NULL, false, true); 1405 } 1406 1407 static inline int regmap_field_update_bits(struct regmap_field *field, 1408 unsigned int mask, unsigned int val) 1409 { 1410 return regmap_field_update_bits_base(field, mask, val, 1411 NULL, false, false); 1412 } 1413 1414 static inline int regmap_field_set_bits(struct regmap_field *field, 1415 unsigned int bits) 1416 { 1417 return regmap_field_update_bits_base(field, bits, bits, NULL, false, 1418 false); 1419 } 1420 1421 static inline int regmap_field_clear_bits(struct regmap_field *field, 1422 unsigned int bits) 1423 { 1424 return regmap_field_update_bits_base(field, bits, 0, NULL, false, 1425 false); 1426 } 1427 1428 int regmap_field_test_bits(struct regmap_field *field, unsigned int bits); 1429 1430 static inline int 1431 regmap_field_force_update_bits(struct regmap_field *field, 1432 unsigned int mask, unsigned int val) 1433 { 1434 return regmap_field_update_bits_base(field, mask, val, 1435 NULL, false, true); 1436 } 1437 1438 static inline int regmap_fields_write(struct regmap_field *field, 1439 unsigned int id, unsigned int val) 1440 { 1441 return regmap_fields_update_bits_base(field, id, ~0, val, 1442 NULL, false, false); 1443 } 1444 1445 static inline int regmap_fields_force_write(struct regmap_field *field, 1446 unsigned int id, unsigned int val) 1447 { 1448 return regmap_fields_update_bits_base(field, id, ~0, val, 1449 NULL, false, true); 1450 } 1451 1452 static inline int 1453 regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 1454 unsigned int mask, unsigned int val) 1455 { 1456 return regmap_fields_update_bits_base(field, id, mask, val, 1457 NULL, false, false); 1458 } 1459 1460 static inline int 1461 regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 1462 unsigned int mask, unsigned int val) 1463 { 1464 return regmap_fields_update_bits_base(field, id, mask, val, 1465 NULL, false, true); 1466 } 1467 1468 /** 1469 * struct regmap_irq_type - IRQ type definitions. 1470 * 1471 * @type_reg_offset: Offset register for the irq type setting. 1472 * @type_rising_val: Register value to configure RISING type irq. 1473 * @type_falling_val: Register value to configure FALLING type irq. 1474 * @type_level_low_val: Register value to configure LEVEL_LOW type irq. 1475 * @type_level_high_val: Register value to configure LEVEL_HIGH type irq. 1476 * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types. 1477 */ 1478 struct regmap_irq_type { 1479 unsigned int type_reg_offset; 1480 unsigned int type_reg_mask; 1481 unsigned int type_rising_val; 1482 unsigned int type_falling_val; 1483 unsigned int type_level_low_val; 1484 unsigned int type_level_high_val; 1485 unsigned int types_supported; 1486 }; 1487 1488 /** 1489 * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip. 1490 * 1491 * @reg_offset: Offset of the status/mask register within the bank 1492 * @mask: Mask used to flag/control the register. 1493 * @type: IRQ trigger type setting details if supported. 1494 */ 1495 struct regmap_irq { 1496 unsigned int reg_offset; 1497 unsigned int mask; 1498 struct regmap_irq_type type; 1499 }; 1500 1501 #define REGMAP_IRQ_REG(_irq, _off, _mask) \ 1502 [_irq] = { .reg_offset = (_off), .mask = (_mask) } 1503 1504 #define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \ 1505 [_id] = { \ 1506 .mask = BIT((_id) % (_reg_bits)), \ 1507 .reg_offset = (_id) / (_reg_bits), \ 1508 } 1509 1510 #define REGMAP_IRQ_MAIN_REG_OFFSET(arr) \ 1511 { .num_regs = ARRAY_SIZE((arr)), .offset = &(arr)[0] } 1512 1513 struct regmap_irq_sub_irq_map { 1514 unsigned int num_regs; 1515 unsigned int *offset; 1516 }; 1517 1518 struct regmap_irq_chip_data; 1519 1520 /** 1521 * struct regmap_irq_chip - Description of a generic regmap irq_chip. 1522 * 1523 * @name: Descriptive name for IRQ controller. 1524 * 1525 * @main_status: Base main status register address. For chips which have 1526 * interrupts arranged in separate sub-irq blocks with own IRQ 1527 * registers and which have a main IRQ registers indicating 1528 * sub-irq blocks with unhandled interrupts. For such chips fill 1529 * sub-irq register information in status_base, mask_base and 1530 * ack_base. 1531 * @num_main_status_bits: Should be given to chips where number of meaningfull 1532 * main status bits differs from num_regs. 1533 * @sub_reg_offsets: arrays of mappings from main register bits to sub irq 1534 * registers. First item in array describes the registers 1535 * for first main status bit. Second array for second bit etc. 1536 * Offset is given as sub register status offset to 1537 * status_base. Should contain num_regs arrays. 1538 * Can be provided for chips with more complex mapping than 1539 * 1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ... 1540 * @num_main_regs: Number of 'main status' irq registers for chips which have 1541 * main_status set. 1542 * 1543 * @status_base: Base status register address. 1544 * @mask_base: Base mask register address. Mask bits are set to 1 when an 1545 * interrupt is masked, 0 when unmasked. 1546 * @unmask_base: Base unmask register address. Unmask bits are set to 1 when 1547 * an interrupt is unmasked and 0 when masked. 1548 * @ack_base: Base ack address. If zero then the chip is clear on read. 1549 * Using zero value is possible with @use_ack bit. 1550 * @wake_base: Base address for wake enables. If zero unsupported. 1551 * @config_base: Base address for IRQ type config regs. If null unsupported. 1552 * @irq_reg_stride: Stride to use for chips where registers are not contiguous. 1553 * @init_ack_masked: Ack all masked interrupts once during initalization. 1554 * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set 1555 * both @mask_base and @unmask_base. If false, mask and unmask bits are 1556 * inverted (which is deprecated behavior); if true, bits will not be 1557 * inverted and the registers keep their normal behavior. Note that if 1558 * you use only one of @mask_base or @unmask_base, this flag has no 1559 * effect and is unnecessary. Any new drivers that set both @mask_base 1560 * and @unmask_base should set this to true to avoid relying on the 1561 * deprecated behavior. 1562 * @use_ack: Use @ack register even if it is zero. 1563 * @ack_invert: Inverted ack register: cleared bits for ack. 1564 * @clear_ack: Use this to set 1 and 0 or vice-versa to clear interrupts. 1565 * @status_invert: Inverted status register: cleared bits are active interrupts. 1566 * @wake_invert: Inverted wake register: cleared bits are wake enabled. 1567 * @type_in_mask: Use the mask registers for controlling irq type. Use this if 1568 * the hardware provides separate bits for rising/falling edge 1569 * or low/high level interrupts and they should be combined into 1570 * a single logical interrupt. Use &struct regmap_irq_type data 1571 * to define the mask bit for each irq type. 1572 * @clear_on_unmask: For chips with interrupts cleared on read: read the status 1573 * registers before unmasking interrupts to clear any bits 1574 * set when they were masked. 1575 * @runtime_pm: Hold a runtime PM lock on the device when accessing it. 1576 * @no_status: No status register: all interrupts assumed generated by device. 1577 * 1578 * @num_regs: Number of registers in each control bank. 1579 * 1580 * @irqs: Descriptors for individual IRQs. Interrupt numbers are 1581 * assigned based on the index in the array of the interrupt. 1582 * @num_irqs: Number of descriptors. 1583 * @num_config_bases: Number of config base registers. 1584 * @num_config_regs: Number of config registers for each config base register. 1585 * 1586 * @handle_pre_irq: Driver specific callback to handle interrupt from device 1587 * before regmap_irq_handler process the interrupts. 1588 * @handle_post_irq: Driver specific callback to handle interrupt from device 1589 * after handling the interrupts in regmap_irq_handler(). 1590 * @handle_mask_sync: Callback used to handle IRQ mask syncs. The index will be 1591 * in the range [0, num_regs) 1592 * @set_type_config: Callback used for configuring irq types. 1593 * @get_irq_reg: Callback for mapping (base register, index) pairs to register 1594 * addresses. The base register will be one of @status_base, 1595 * @mask_base, etc., @main_status, or any of @config_base. 1596 * The index will be in the range [0, num_main_regs[ for the 1597 * main status base, [0, num_config_regs[ for any config 1598 * register base, and [0, num_regs[ for any other base. 1599 * If unspecified then regmap_irq_get_irq_reg_linear() is used. 1600 * @irq_drv_data: Driver specific IRQ data which is passed as parameter when 1601 * driver specific pre/post interrupt handler is called. 1602 * 1603 * This is not intended to handle every possible interrupt controller, but 1604 * it should handle a substantial proportion of those that are found in the 1605 * wild. 1606 */ 1607 struct regmap_irq_chip { 1608 const char *name; 1609 1610 unsigned int main_status; 1611 unsigned int num_main_status_bits; 1612 const struct regmap_irq_sub_irq_map *sub_reg_offsets; 1613 int num_main_regs; 1614 1615 unsigned int status_base; 1616 unsigned int mask_base; 1617 unsigned int unmask_base; 1618 unsigned int ack_base; 1619 unsigned int wake_base; 1620 const unsigned int *config_base; 1621 unsigned int irq_reg_stride; 1622 unsigned int init_ack_masked:1; 1623 unsigned int mask_unmask_non_inverted:1; 1624 unsigned int use_ack:1; 1625 unsigned int ack_invert:1; 1626 unsigned int clear_ack:1; 1627 unsigned int status_invert:1; 1628 unsigned int wake_invert:1; 1629 unsigned int type_in_mask:1; 1630 unsigned int clear_on_unmask:1; 1631 unsigned int runtime_pm:1; 1632 unsigned int no_status:1; 1633 1634 int num_regs; 1635 1636 const struct regmap_irq *irqs; 1637 int num_irqs; 1638 1639 int num_config_bases; 1640 int num_config_regs; 1641 1642 int (*handle_pre_irq)(void *irq_drv_data); 1643 int (*handle_post_irq)(void *irq_drv_data); 1644 int (*handle_mask_sync)(int index, unsigned int mask_buf_def, 1645 unsigned int mask_buf, void *irq_drv_data); 1646 int (*set_type_config)(unsigned int **buf, unsigned int type, 1647 const struct regmap_irq *irq_data, int idx, 1648 void *irq_drv_data); 1649 unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data, 1650 unsigned int base, int index); 1651 void *irq_drv_data; 1652 }; 1653 1654 unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data, 1655 unsigned int base, int index); 1656 int regmap_irq_set_type_config_simple(unsigned int **buf, unsigned int type, 1657 const struct regmap_irq *irq_data, 1658 int idx, void *irq_drv_data); 1659 1660 int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, 1661 int irq_base, const struct regmap_irq_chip *chip, 1662 struct regmap_irq_chip_data **data); 1663 int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode, 1664 struct regmap *map, int irq, 1665 int irq_flags, int irq_base, 1666 const struct regmap_irq_chip *chip, 1667 struct regmap_irq_chip_data **data); 1668 void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); 1669 1670 int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq, 1671 int irq_flags, int irq_base, 1672 const struct regmap_irq_chip *chip, 1673 struct regmap_irq_chip_data **data); 1674 int devm_regmap_add_irq_chip_fwnode(struct device *dev, 1675 struct fwnode_handle *fwnode, 1676 struct regmap *map, int irq, 1677 int irq_flags, int irq_base, 1678 const struct regmap_irq_chip *chip, 1679 struct regmap_irq_chip_data **data); 1680 void devm_regmap_del_irq_chip(struct device *dev, int irq, 1681 struct regmap_irq_chip_data *data); 1682 1683 int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); 1684 int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); 1685 struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); 1686 1687 #else 1688 1689 /* 1690 * These stubs should only ever be called by generic code which has 1691 * regmap based facilities, if they ever get called at runtime 1692 * something is going wrong and something probably needs to select 1693 * REGMAP. 1694 */ 1695 1696 static inline int regmap_write(struct regmap *map, unsigned int reg, 1697 unsigned int val) 1698 { 1699 WARN_ONCE(1, "regmap API is disabled"); 1700 return -EINVAL; 1701 } 1702 1703 static inline int regmap_write_async(struct regmap *map, unsigned int reg, 1704 unsigned int val) 1705 { 1706 WARN_ONCE(1, "regmap API is disabled"); 1707 return -EINVAL; 1708 } 1709 1710 static inline int regmap_raw_write(struct regmap *map, unsigned int reg, 1711 const void *val, size_t val_len) 1712 { 1713 WARN_ONCE(1, "regmap API is disabled"); 1714 return -EINVAL; 1715 } 1716 1717 static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1718 const void *val, size_t val_len) 1719 { 1720 WARN_ONCE(1, "regmap API is disabled"); 1721 return -EINVAL; 1722 } 1723 1724 static inline int regmap_noinc_write(struct regmap *map, unsigned int reg, 1725 const void *val, size_t val_len) 1726 { 1727 WARN_ONCE(1, "regmap API is disabled"); 1728 return -EINVAL; 1729 } 1730 1731 static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, 1732 const void *val, size_t val_count) 1733 { 1734 WARN_ONCE(1, "regmap API is disabled"); 1735 return -EINVAL; 1736 } 1737 1738 static inline int regmap_read(struct regmap *map, unsigned int reg, 1739 unsigned int *val) 1740 { 1741 WARN_ONCE(1, "regmap API is disabled"); 1742 return -EINVAL; 1743 } 1744 1745 static inline int regmap_read_bypassed(struct regmap *map, unsigned int reg, 1746 unsigned int *val) 1747 { 1748 WARN_ONCE(1, "regmap API is disabled"); 1749 return -EINVAL; 1750 } 1751 1752 static inline int regmap_raw_read(struct regmap *map, unsigned int reg, 1753 void *val, size_t val_len) 1754 { 1755 WARN_ONCE(1, "regmap API is disabled"); 1756 return -EINVAL; 1757 } 1758 1759 static inline int regmap_noinc_read(struct regmap *map, unsigned int reg, 1760 void *val, size_t val_len) 1761 { 1762 WARN_ONCE(1, "regmap API is disabled"); 1763 return -EINVAL; 1764 } 1765 1766 static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, 1767 void *val, size_t val_count) 1768 { 1769 WARN_ONCE(1, "regmap API is disabled"); 1770 return -EINVAL; 1771 } 1772 1773 static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1774 unsigned int mask, unsigned int val, 1775 bool *change, bool async, bool force) 1776 { 1777 WARN_ONCE(1, "regmap API is disabled"); 1778 return -EINVAL; 1779 } 1780 1781 static inline int regmap_set_bits(struct regmap *map, 1782 unsigned int reg, unsigned int bits) 1783 { 1784 WARN_ONCE(1, "regmap API is disabled"); 1785 return -EINVAL; 1786 } 1787 1788 static inline int regmap_clear_bits(struct regmap *map, 1789 unsigned int reg, unsigned int bits) 1790 { 1791 WARN_ONCE(1, "regmap API is disabled"); 1792 return -EINVAL; 1793 } 1794 1795 static inline int regmap_test_bits(struct regmap *map, 1796 unsigned int reg, unsigned int bits) 1797 { 1798 WARN_ONCE(1, "regmap API is disabled"); 1799 return -EINVAL; 1800 } 1801 1802 static inline int regmap_field_update_bits_base(struct regmap_field *field, 1803 unsigned int mask, unsigned int val, 1804 bool *change, bool async, bool force) 1805 { 1806 WARN_ONCE(1, "regmap API is disabled"); 1807 return -EINVAL; 1808 } 1809 1810 static inline int regmap_fields_update_bits_base(struct regmap_field *field, 1811 unsigned int id, 1812 unsigned int mask, unsigned int val, 1813 bool *change, bool async, bool force) 1814 { 1815 WARN_ONCE(1, "regmap API is disabled"); 1816 return -EINVAL; 1817 } 1818 1819 static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1820 unsigned int mask, unsigned int val) 1821 { 1822 WARN_ONCE(1, "regmap API is disabled"); 1823 return -EINVAL; 1824 } 1825 1826 static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg, 1827 unsigned int mask, unsigned int val) 1828 { 1829 WARN_ONCE(1, "regmap API is disabled"); 1830 return -EINVAL; 1831 } 1832 1833 static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1834 unsigned int mask, unsigned int val, 1835 bool *change) 1836 { 1837 WARN_ONCE(1, "regmap API is disabled"); 1838 return -EINVAL; 1839 } 1840 1841 static inline int 1842 regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1843 unsigned int mask, unsigned int val, 1844 bool *change) 1845 { 1846 WARN_ONCE(1, "regmap API is disabled"); 1847 return -EINVAL; 1848 } 1849 1850 static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1851 unsigned int mask, unsigned int val) 1852 { 1853 WARN_ONCE(1, "regmap API is disabled"); 1854 return -EINVAL; 1855 } 1856 1857 static inline int regmap_field_write(struct regmap_field *field, 1858 unsigned int val) 1859 { 1860 WARN_ONCE(1, "regmap API is disabled"); 1861 return -EINVAL; 1862 } 1863 1864 static inline int regmap_field_force_write(struct regmap_field *field, 1865 unsigned int val) 1866 { 1867 WARN_ONCE(1, "regmap API is disabled"); 1868 return -EINVAL; 1869 } 1870 1871 static inline int regmap_field_update_bits(struct regmap_field *field, 1872 unsigned int mask, unsigned int val) 1873 { 1874 WARN_ONCE(1, "regmap API is disabled"); 1875 return -EINVAL; 1876 } 1877 1878 static inline int 1879 regmap_field_force_update_bits(struct regmap_field *field, 1880 unsigned int mask, unsigned int val) 1881 { 1882 WARN_ONCE(1, "regmap API is disabled"); 1883 return -EINVAL; 1884 } 1885 1886 static inline int regmap_field_set_bits(struct regmap_field *field, 1887 unsigned int bits) 1888 { 1889 WARN_ONCE(1, "regmap API is disabled"); 1890 return -EINVAL; 1891 } 1892 1893 static inline int regmap_field_clear_bits(struct regmap_field *field, 1894 unsigned int bits) 1895 { 1896 WARN_ONCE(1, "regmap API is disabled"); 1897 return -EINVAL; 1898 } 1899 1900 static inline int regmap_field_test_bits(struct regmap_field *field, 1901 unsigned int bits) 1902 { 1903 WARN_ONCE(1, "regmap API is disabled"); 1904 return -EINVAL; 1905 } 1906 1907 static inline int regmap_fields_write(struct regmap_field *field, 1908 unsigned int id, unsigned int val) 1909 { 1910 WARN_ONCE(1, "regmap API is disabled"); 1911 return -EINVAL; 1912 } 1913 1914 static inline int regmap_fields_force_write(struct regmap_field *field, 1915 unsigned int id, unsigned int val) 1916 { 1917 WARN_ONCE(1, "regmap API is disabled"); 1918 return -EINVAL; 1919 } 1920 1921 static inline int 1922 regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 1923 unsigned int mask, unsigned int val) 1924 { 1925 WARN_ONCE(1, "regmap API is disabled"); 1926 return -EINVAL; 1927 } 1928 1929 static inline int 1930 regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 1931 unsigned int mask, unsigned int val) 1932 { 1933 WARN_ONCE(1, "regmap API is disabled"); 1934 return -EINVAL; 1935 } 1936 1937 static inline int regmap_get_val_bytes(struct regmap *map) 1938 { 1939 WARN_ONCE(1, "regmap API is disabled"); 1940 return -EINVAL; 1941 } 1942 1943 static inline int regmap_get_max_register(struct regmap *map) 1944 { 1945 WARN_ONCE(1, "regmap API is disabled"); 1946 return -EINVAL; 1947 } 1948 1949 static inline int regmap_get_reg_stride(struct regmap *map) 1950 { 1951 WARN_ONCE(1, "regmap API is disabled"); 1952 return -EINVAL; 1953 } 1954 1955 static inline bool regmap_might_sleep(struct regmap *map) 1956 { 1957 WARN_ONCE(1, "regmap API is disabled"); 1958 return true; 1959 } 1960 1961 static inline int regcache_sync(struct regmap *map) 1962 { 1963 WARN_ONCE(1, "regmap API is disabled"); 1964 return -EINVAL; 1965 } 1966 1967 static inline int regcache_sync_region(struct regmap *map, unsigned int min, 1968 unsigned int max) 1969 { 1970 WARN_ONCE(1, "regmap API is disabled"); 1971 return -EINVAL; 1972 } 1973 1974 static inline int regcache_drop_region(struct regmap *map, unsigned int min, 1975 unsigned int max) 1976 { 1977 WARN_ONCE(1, "regmap API is disabled"); 1978 return -EINVAL; 1979 } 1980 1981 static inline void regcache_cache_only(struct regmap *map, bool enable) 1982 { 1983 WARN_ONCE(1, "regmap API is disabled"); 1984 } 1985 1986 static inline void regcache_cache_bypass(struct regmap *map, bool enable) 1987 { 1988 WARN_ONCE(1, "regmap API is disabled"); 1989 } 1990 1991 static inline void regcache_mark_dirty(struct regmap *map) 1992 { 1993 WARN_ONCE(1, "regmap API is disabled"); 1994 } 1995 1996 static inline void regmap_async_complete(struct regmap *map) 1997 { 1998 WARN_ONCE(1, "regmap API is disabled"); 1999 } 2000 2001 static inline int regmap_register_patch(struct regmap *map, 2002 const struct reg_sequence *regs, 2003 int num_regs) 2004 { 2005 WARN_ONCE(1, "regmap API is disabled"); 2006 return -EINVAL; 2007 } 2008 2009 static inline int regmap_parse_val(struct regmap *map, const void *buf, 2010 unsigned int *val) 2011 { 2012 WARN_ONCE(1, "regmap API is disabled"); 2013 return -EINVAL; 2014 } 2015 2016 static inline struct regmap *dev_get_regmap(struct device *dev, 2017 const char *name) 2018 { 2019 return NULL; 2020 } 2021 2022 static inline struct device *regmap_get_device(struct regmap *map) 2023 { 2024 WARN_ONCE(1, "regmap API is disabled"); 2025 return NULL; 2026 } 2027 2028 #endif 2029 2030 #endif 2031