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regmap.h
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linux-6.19.14/include/linux/regmap.h
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 23struct module; 24struct clk; 25struct device; 26struct device_node; 27struct fsi_device; 28struct i2c_client; 29struct i3c_device; 30struct irq_domain; 31struct mdio_device; 32struct slim_device; 33struct spi_device; 34struct spmi_device; 35struct regmap; 36struct regmap_range_cfg; 37struct regmap_field; 38struct snd_ac97; 39struct 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/* 58 * The supported cache types, the default is no cache. Any new caches should 59 * usually use the maple tree cache unless they specifically require that there 60 * are never any allocations at runtime in which case they should use the sparse 61 * flat cache. The rbtree cache *may* have some performance advantage for very 62 * low end systems that make heavy use of cache syncs but is mainly legacy. 63 * These caches are sparse and entries will be initialized from hardware if no 64 * default has been provided. 65 * The non-sparse flat cache is provided for compatibility with existing users 66 * and will zero-initialize cache entries for which no defaults are provided. 67 * New users should use the sparse flat cache. 68 */ 69enum regcache_type { 70 REGCACHE_NONE, 71 REGCACHE_RBTREE, 72 REGCACHE_FLAT, 73 REGCACHE_MAPLE, 74 REGCACHE_FLAT_S, 75}; 76 77/** 78 * struct reg_default - Default value for a register. 79 * 80 * @reg: Register address. 81 * @def: Register default value. 82 * 83 * We use an array of structs rather than a simple array as many modern devices 84 * have very sparse register maps. 85 */ 86struct reg_default { 87 unsigned int reg; 88 unsigned int def; 89}; 90 91/** 92 * struct reg_sequence - An individual write from a sequence of writes. 93 * 94 * @reg: Register address. 95 * @def: Register value. 96 * @delay_us: Delay to be applied after the register write in microseconds 97 * 98 * Register/value pairs for sequences of writes with an optional delay in 99 * microseconds to be applied after each write. 100 */ 101struct reg_sequence { 102 unsigned int reg; 103 unsigned int def; 104 unsigned int delay_us; 105}; 106 107#define REG_SEQ(_reg, _def, _delay_us) { \ 108 .reg = _reg, \ 109 .def = _def, \ 110 .delay_us = _delay_us, \ 111 } 112#define REG_SEQ0(_reg, _def) REG_SEQ(_reg, _def, 0) 113 114/** 115 * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs 116 * 117 * @map: Regmap to read from 118 * @addr: Address to poll 119 * @val: Unsigned integer variable to read the value into 120 * @cond: Break condition (usually involving @val) 121 * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please 122 * read usleep_range() function description for details and 123 * limitations. 124 * @timeout_us: Timeout in us, 0 means never timeout 125 * 126 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 127 * 128 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 129 * error return value in case of a error read. In the two former cases, 130 * the last read value at @addr is stored in @val. Must not be called 131 * from atomic context if sleep_us or timeout_us are used. 132 */ 133#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ 134({ \ 135 int __ret, __tmp; \ 136 __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \ 137 sleep_us, timeout_us, false, (map), (addr), &(val)); \ 138 __ret ?: __tmp; \ 139}) 140 141/** 142 * regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs 143 * 144 * @map: Regmap to read from 145 * @addr: Address to poll 146 * @val: Unsigned integer variable to read the value into 147 * @cond: Break condition (usually involving @val) 148 * @delay_us: Time to udelay between reads in us (0 tight-loops). Please 149 * read udelay() function description for details and 150 * limitations. 151 * @timeout_us: Timeout in us, 0 means never timeout 152 * 153 * This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h. 154 * 155 * Note: In general regmap cannot be used in atomic context. If you want to use 156 * this macro then first setup your regmap for atomic use (flat or no cache 157 * and MMIO regmap). 158 * 159 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 160 * error return value in case of a error read. In the two former cases, 161 * the last read value at @addr is stored in @val. 162 */ 163#define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \ 164({ \ 165 u64 __timeout_us = (timeout_us); \ 166 unsigned long __delay_us = (delay_us); \ 167 ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ 168 int __ret; \ 169 for (;;) { \ 170 __ret = regmap_read((map), (addr), &(val)); \ 171 if (__ret) \ 172 break; \ 173 if (cond) \ 174 break; \ 175 if ((__timeout_us) && \ 176 ktime_compare(ktime_get(), __timeout) > 0) { \ 177 __ret = regmap_read((map), (addr), &(val)); \ 178 break; \ 179 } \ 180 if (__delay_us) \ 181 udelay(__delay_us); \ 182 } \ 183 __ret ?: ((cond) ? 0 : -ETIMEDOUT); \ 184}) 185 186/** 187 * regmap_field_read_poll_timeout - Poll until a condition is met or timeout 188 * 189 * @field: Regmap field to read from 190 * @val: Unsigned integer variable to read the value into 191 * @cond: Break condition (usually involving @val) 192 * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please 193 * read usleep_range() function description for details and 194 * limitations. 195 * @timeout_us: Timeout in us, 0 means never timeout 196 * 197 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 198 * 199 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read 200 * error return value in case of a error read. In the two former cases, 201 * the last read value at @addr is stored in @val. Must not be called 202 * from atomic context if sleep_us or timeout_us are used. 203 */ 204#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \ 205({ \ 206 int __ret, __tmp; \ 207 __tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \ 208 sleep_us, timeout_us, false, (field), &(val)); \ 209 __ret ?: __tmp; \ 210}) 211 212#ifdef CONFIG_REGMAP 213 214enum regmap_endian { 215 /* Unspecified -> 0 -> Backwards compatible default */ 216 REGMAP_ENDIAN_DEFAULT = 0, 217 REGMAP_ENDIAN_BIG, 218 REGMAP_ENDIAN_LITTLE, 219 REGMAP_ENDIAN_NATIVE, 220}; 221 222/** 223 * struct regmap_range - A register range, used for access related checks 224 * (readable/writeable/volatile/precious checks) 225 * 226 * @range_min: address of first register 227 * @range_max: address of last register 228 */ 229struct regmap_range { 230 unsigned int range_min; 231 unsigned int range_max; 232}; 233 234#define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } 235 236/** 237 * struct regmap_access_table - A table of register ranges for access checks 238 * 239 * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" 240 * @n_yes_ranges: size of the above array 241 * @no_ranges: pointer to an array of regmap ranges used as "no ranges" 242 * @n_no_ranges: size of the above array 243 * 244 * A table of ranges including some yes ranges and some no ranges. 245 * If a register belongs to a no_range, the corresponding check function 246 * will return false. If a register belongs to a yes range, the corresponding 247 * check function will return true. "no_ranges" are searched first. 248 */ 249struct regmap_access_table { 250 const struct regmap_range *yes_ranges; 251 unsigned int n_yes_ranges; 252 const struct regmap_range *no_ranges; 253 unsigned int n_no_ranges; 254}; 255 256typedef void (*regmap_lock)(void *); 257typedef void (*regmap_unlock)(void *); 258 259/** 260 * struct regmap_config - Configuration for the register map of a device. 261 * 262 * @name: Optional name of the regmap. Useful when a device has multiple 263 * register regions. 264 * 265 * @reg_bits: Number of bits in a register address, mandatory. 266 * @reg_stride: The register address stride. Valid register addresses are a 267 * multiple of this value. If set to 0, a value of 1 will be 268 * used. 269 * @reg_shift: The number of bits to shift the register before performing any 270 * operations. Any positive number will be downshifted, and negative 271 * values will be upshifted 272 * @reg_base: Value to be added to every register address before performing any 273 * operation. 274 * @pad_bits: Number of bits of padding between register and value. 275 * @val_bits: Number of bits in a register value, mandatory. 276 * 277 * @writeable_reg: Optional callback returning true if the register 278 * can be written to. If this field is NULL but wr_table 279 * (see below) is not, the check is performed on such table 280 * (a register is writeable if it belongs to one of the ranges 281 * specified by wr_table). 282 * @readable_reg: Optional callback returning true if the register 283 * can be read from. If this field is NULL but rd_table 284 * (see below) is not, the check is performed on such table 285 * (a register is readable if it belongs to one of the ranges 286 * specified by rd_table). 287 * @volatile_reg: Optional callback returning true if the register 288 * value can't be cached. If this field is NULL but 289 * volatile_table (see below) is not, the check is performed on 290 * such table (a register is volatile if it belongs to one of 291 * the ranges specified by volatile_table). 292 * @precious_reg: Optional callback returning true if the register 293 * should not be read outside of a call from the driver 294 * (e.g., a clear on read interrupt status register). If this 295 * field is NULL but precious_table (see below) is not, the 296 * check is performed on such table (a register is precious if 297 * it belongs to one of the ranges specified by precious_table). 298 * @writeable_noinc_reg: Optional callback returning true if the register 299 * supports multiple write operations without incrementing 300 * the register number. If this field is NULL but 301 * wr_noinc_table (see below) is not, the check is 302 * performed on such table (a register is no increment 303 * writeable if it belongs to one of the ranges specified 304 * by wr_noinc_table). 305 * @readable_noinc_reg: Optional callback returning true if the register 306 * supports multiple read operations without incrementing 307 * the register number. If this field is NULL but 308 * rd_noinc_table (see below) is not, the check is 309 * performed on such table (a register is no increment 310 * readable if it belongs to one of the ranges specified 311 * by rd_noinc_table). 312 * @reg_read: Optional callback that if filled will be used to perform 313 * all the reads from the registers. Should only be provided for 314 * devices whose read operation cannot be represented as a simple 315 * read operation on a bus such as SPI, I2C, etc. Most of the 316 * devices do not need this. 317 * @reg_write: Same as above for writing. 318 * @reg_update_bits: Optional callback that if filled will be used to perform 319 * all the update_bits(rmw) operation. Should only be provided 320 * if the function require special handling with lock and reg 321 * handling and the operation cannot be represented as a simple 322 * update_bits operation on a bus such as SPI, I2C, etc. 323 * @read: Optional callback that if filled will be used to perform all the 324 * bulk reads from the registers. Data is returned in the buffer used 325 * to transmit data. 326 * @write: Same as above for writing. 327 * @max_raw_read: Max raw read size that can be used on the device. 328 * @max_raw_write: Max raw write size that can be used on the device. 329 * @can_sleep: Optional, specifies whether regmap operations can sleep. 330 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 331 * to perform locking. This field is ignored if custom lock/unlock 332 * functions are used (see fields lock/unlock of struct regmap_config). 333 * This field is a duplicate of a similar file in 334 * 'struct regmap_bus' and serves exact same purpose. 335 * Use it only for "no-bus" cases. 336 * @io_port: Support IO port accessors. Makes sense only when MMIO vs. IO port 337 * access can be distinguished. 338 * @disable_locking: This regmap is either protected by external means or 339 * is guaranteed not to be accessed from multiple threads. 340 * Don't use any locking mechanisms. 341 * @lock: Optional lock callback (overrides regmap's default lock 342 * function, based on spinlock or mutex). 343 * @unlock: As above for unlocking. 344 * @lock_arg: This field is passed as the only argument of lock/unlock 345 * functions (ignored in case regular lock/unlock functions 346 * are not overridden). 347 * @max_register: Optional, specifies the maximum valid register address. 348 * @max_register_is_0: Optional, specifies that zero value in @max_register 349 * should be taken into account. This is a workaround to 350 * apply handling of @max_register for regmap that contains 351 * only one register. 352 * @wr_table: Optional, points to a struct regmap_access_table specifying 353 * valid ranges for write access. 354 * @rd_table: As above, for read access. 355 * @volatile_table: As above, for volatile registers. 356 * @precious_table: As above, for precious registers. 357 * @wr_noinc_table: As above, for no increment writeable registers. 358 * @rd_noinc_table: As above, for no increment readable registers. 359 * @reg_defaults: Power on reset values for registers (for use with 360 * register cache support). 361 * @num_reg_defaults: Number of elements in reg_defaults. 362 * 363 * @read_flag_mask: Mask to be set in the top bytes of the register when doing 364 * a read. 365 * @write_flag_mask: Mask to be set in the top bytes of the register when doing 366 * a write. If both read_flag_mask and write_flag_mask are 367 * empty and zero_flag_mask is not set the regmap_bus default 368 * masks are used. 369 * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even 370 * if they are both empty. 371 * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers. 372 * This can avoid load on devices which don't require strict 373 * orderings, but drivers should carefully add any explicit 374 * memory barriers when they may require them. 375 * @use_single_read: If set, converts the bulk read operation into a series of 376 * single read operations. This is useful for a device that 377 * does not support bulk read. 378 * @use_single_write: If set, converts the bulk write operation into a series of 379 * single write operations. This is useful for a device that 380 * does not support bulk write. 381 * @can_multi_write: If set, the device supports the multi write mode of bulk 382 * write operations, if clear multi write requests will be 383 * split into individual write operations 384 * 385 * @cache_type: The actual cache type. 386 * @reg_defaults_raw: Power on reset values for registers (for use with 387 * register cache support). 388 * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. 389 * @use_hwlock: Indicate if a hardware spinlock should be used. 390 * @use_raw_spinlock: Indicate if a raw spinlock should be used. 391 * @hwlock_id: Specify the hardware spinlock id. 392 * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE, 393 * HWLOCK_IRQ or 0. 394 * @reg_format_endian: Endianness for formatted register addresses. If this is 395 * DEFAULT, the @reg_format_endian_default value from the 396 * regmap bus is used. 397 * @val_format_endian: Endianness for formatted register values. If this is 398 * DEFAULT, the @reg_format_endian_default value from the 399 * regmap bus is used. 400 * 401 * @ranges: Array of configuration entries for virtual address ranges. 402 * @num_ranges: Number of range configuration entries. 403 */ 404struct regmap_config { 405 const char *name; 406 407 int reg_bits; 408 int reg_stride; 409 int reg_shift; 410 unsigned int reg_base; 411 int pad_bits; 412 int val_bits; 413 414 bool (*writeable_reg)(struct device *dev, unsigned int reg); 415 bool (*readable_reg)(struct device *dev, unsigned int reg); 416 bool (*volatile_reg)(struct device *dev, unsigned int reg); 417 bool (*precious_reg)(struct device *dev, unsigned int reg); 418 bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg); 419 bool (*readable_noinc_reg)(struct device *dev, unsigned int reg); 420 421 int (*reg_read)(void *context, unsigned int reg, unsigned int *val); 422 int (*reg_write)(void *context, unsigned int reg, unsigned int val); 423 int (*reg_update_bits)(void *context, unsigned int reg, 424 unsigned int mask, unsigned int val); 425 /* Bulk read/write */ 426 int (*read)(void *context, const void *reg_buf, size_t reg_size, 427 void *val_buf, size_t val_size); 428 int (*write)(void *context, const void *data, size_t count); 429 size_t max_raw_read; 430 size_t max_raw_write; 431 432 bool can_sleep; 433 434 bool fast_io; 435 bool io_port; 436 437 bool disable_locking; 438 regmap_lock lock; 439 regmap_unlock unlock; 440 void *lock_arg; 441 442 unsigned int max_register; 443 bool max_register_is_0; 444 const struct regmap_access_table *wr_table; 445 const struct regmap_access_table *rd_table; 446 const struct regmap_access_table *volatile_table; 447 const struct regmap_access_table *precious_table; 448 const struct regmap_access_table *wr_noinc_table; 449 const struct regmap_access_table *rd_noinc_table; 450 const struct reg_default *reg_defaults; 451 unsigned int num_reg_defaults; 452 enum regcache_type cache_type; 453 const void *reg_defaults_raw; 454 unsigned int num_reg_defaults_raw; 455 456 unsigned long read_flag_mask; 457 unsigned long write_flag_mask; 458 bool zero_flag_mask; 459 460 bool use_single_read; 461 bool use_single_write; 462 bool use_relaxed_mmio; 463 bool can_multi_write; 464 465 bool use_hwlock; 466 bool use_raw_spinlock; 467 unsigned int hwlock_id; 468 unsigned int hwlock_mode; 469 470 enum regmap_endian reg_format_endian; 471 enum regmap_endian val_format_endian; 472 473 const struct regmap_range_cfg *ranges; 474 unsigned int num_ranges; 475}; 476 477/** 478 * struct regmap_range_cfg - Configuration for indirectly accessed or paged 479 * registers. 480 * 481 * @name: Descriptive name for diagnostics 482 * 483 * @range_min: Address of the lowest register address in virtual range. 484 * @range_max: Address of the highest register in virtual range. 485 * 486 * @selector_reg: Register with selector field. 487 * @selector_mask: Bit mask for selector value. 488 * @selector_shift: Bit shift for selector value. 489 * 490 * @window_start: Address of first (lowest) register in data window. 491 * @window_len: Number of registers in data window. 492 * 493 * Registers, mapped to this virtual range, are accessed in two steps: 494 * 1. page selector register update; 495 * 2. access through data window registers. 496 */ 497struct regmap_range_cfg { 498 const char *name; 499 500 /* Registers of virtual address range */ 501 unsigned int range_min; 502 unsigned int range_max; 503 504 /* Page selector for indirect addressing */ 505 unsigned int selector_reg; 506 unsigned int selector_mask; 507 int selector_shift; 508 509 /* Data window (per each page) */ 510 unsigned int window_start; 511 unsigned int window_len; 512}; 513 514/** 515 * struct regmap_sdw_mbq_cfg - Configuration for Multi-Byte Quantities 516 * 517 * @mbq_size: Callback returning the actual size of the given register. 518 * @deferrable: Callback returning true if the hardware can defer 519 * transactions to the given register. Deferral should 520 * only be used by SDCA parts and typically which controls 521 * are deferrable will be specified in either as a hard 522 * coded list or from the DisCo tables in the platform 523 * firmware. 524 * 525 * @timeout_us: The time in microseconds after which waiting for a deferred 526 * transaction should time out. 527 * @retry_us: The time in microseconds between polls of the function busy 528 * status whilst waiting for an opportunity to retry a deferred 529 * transaction. 530 * 531 * Provides additional configuration required for SoundWire MBQ register maps. 532 */ 533struct regmap_sdw_mbq_cfg { 534 int (*mbq_size)(struct device *dev, unsigned int reg); 535 bool (*deferrable)(struct device *dev, unsigned int reg); 536 unsigned long timeout_us; 537 unsigned long retry_us; 538}; 539 540struct regmap_async; 541 542typedef int (*regmap_hw_write)(void *context, const void *data, 543 size_t count); 544typedef int (*regmap_hw_gather_write)(void *context, 545 const void *reg, size_t reg_len, 546 const void *val, size_t val_len); 547typedef int (*regmap_hw_async_write)(void *context, 548 const void *reg, size_t reg_len, 549 const void *val, size_t val_len, 550 struct regmap_async *async); 551typedef int (*regmap_hw_read)(void *context, 552 const void *reg_buf, size_t reg_size, 553 void *val_buf, size_t val_size); 554typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, 555 unsigned int *val); 556typedef int (*regmap_hw_reg_noinc_read)(void *context, unsigned int reg, 557 void *val, size_t val_count); 558typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, 559 unsigned int val); 560typedef int (*regmap_hw_reg_noinc_write)(void *context, unsigned int reg, 561 const void *val, size_t val_count); 562typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, 563 unsigned int mask, unsigned int val); 564typedef struct regmap_async *(*regmap_hw_async_alloc)(void); 565typedef void (*regmap_hw_free_context)(void *context); 566 567/** 568 * struct regmap_bus - Description of a hardware bus for the register map 569 * infrastructure. 570 * 571 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 572 * to perform locking. This field is ignored if custom lock/unlock 573 * functions are used (see fields lock/unlock of 574 * struct regmap_config). 575 * @free_on_exit: kfree this on exit of regmap 576 * @write: Write operation. 577 * @gather_write: Write operation with split register/value, return -ENOTSUPP 578 * if not implemented on a given device. 579 * @async_write: Write operation which completes asynchronously, optional and 580 * must serialise with respect to non-async I/O. 581 * @reg_write: Write a single register value to the given register address. This 582 * write operation has to complete when returning from the function. 583 * @reg_write_noinc: Write multiple register value to the same register. This 584 * write operation has to complete when returning from the function. 585 * @reg_update_bits: Update bits operation to be used against volatile 586 * registers, intended for devices supporting some mechanism 587 * for setting clearing bits without having to 588 * read/modify/write. 589 * @read: Read operation. Data is returned in the buffer used to transmit 590 * data. 591 * @reg_read: Read a single register value from a given register address. 592 * @free_context: Free context. 593 * @async_alloc: Allocate a regmap_async() structure. 594 * @read_flag_mask: Mask to be set in the top byte of the register when doing 595 * a read. 596 * @reg_format_endian_default: Default endianness for formatted register 597 * addresses. Used when the regmap_config specifies DEFAULT. If this is 598 * DEFAULT, BIG is assumed. 599 * @val_format_endian_default: Default endianness for formatted register 600 * values. Used when the regmap_config specifies DEFAULT. If this is 601 * DEFAULT, BIG is assumed. 602 * @max_raw_read: Max raw read size that can be used on the bus. 603 * @max_raw_write: Max raw write size that can be used on the bus. 604 */ 605struct regmap_bus { 606 bool fast_io; 607 bool free_on_exit; 608 regmap_hw_write write; 609 regmap_hw_gather_write gather_write; 610 regmap_hw_async_write async_write; 611 regmap_hw_reg_write reg_write; 612 regmap_hw_reg_noinc_write reg_noinc_write; 613 regmap_hw_reg_update_bits reg_update_bits; 614 regmap_hw_read read; 615 regmap_hw_reg_read reg_read; 616 regmap_hw_reg_noinc_read reg_noinc_read; 617 regmap_hw_free_context free_context; 618 regmap_hw_async_alloc async_alloc; 619 u8 read_flag_mask; 620 enum regmap_endian reg_format_endian_default; 621 enum regmap_endian val_format_endian_default; 622 size_t max_raw_read; 623 size_t max_raw_write; 624}; 625 626/* 627 * __regmap_init functions. 628 * 629 * These functions take a lock key and name parameter, and should not be called 630 * directly. Instead, use the regmap_init macros that generate a key and name 631 * for each call. 632 */ 633struct regmap *__regmap_init(struct device *dev, 634 const struct regmap_bus *bus, 635 void *bus_context, 636 const struct regmap_config *config, 637 struct lock_class_key *lock_key, 638 const char *lock_name); 639struct regmap *__regmap_init_i2c(struct i2c_client *i2c, 640 const struct regmap_config *config, 641 struct lock_class_key *lock_key, 642 const char *lock_name); 643struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev, 644 const struct regmap_config *config, 645 struct lock_class_key *lock_key, 646 const char *lock_name); 647struct regmap *__regmap_init_sccb(struct i2c_client *i2c, 648 const struct regmap_config *config, 649 struct lock_class_key *lock_key, 650 const char *lock_name); 651struct regmap *__regmap_init_slimbus(struct slim_device *slimbus, 652 const struct regmap_config *config, 653 struct lock_class_key *lock_key, 654 const char *lock_name); 655struct regmap *__regmap_init_spi(struct spi_device *dev, 656 const struct regmap_config *config, 657 struct lock_class_key *lock_key, 658 const char *lock_name); 659struct regmap *__regmap_init_spmi_base(struct spmi_device *dev, 660 const struct regmap_config *config, 661 struct lock_class_key *lock_key, 662 const char *lock_name); 663struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev, 664 const struct regmap_config *config, 665 struct lock_class_key *lock_key, 666 const char *lock_name); 667struct regmap *__regmap_init_w1(struct device *w1_dev, 668 const struct regmap_config *config, 669 struct lock_class_key *lock_key, 670 const char *lock_name); 671struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, 672 void __iomem *regs, 673 const struct regmap_config *config, 674 struct lock_class_key *lock_key, 675 const char *lock_name); 676struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, 677 const struct regmap_config *config, 678 struct lock_class_key *lock_key, 679 const char *lock_name); 680struct regmap *__regmap_init_sdw(struct sdw_slave *sdw, 681 const struct regmap_config *config, 682 struct lock_class_key *lock_key, 683 const char *lock_name); 684struct regmap *__regmap_init_sdw_mbq(struct device *dev, struct sdw_slave *sdw, 685 const struct regmap_config *config, 686 const struct regmap_sdw_mbq_cfg *mbq_config, 687 struct lock_class_key *lock_key, 688 const char *lock_name); 689struct regmap *__regmap_init_spi_avmm(struct spi_device *spi, 690 const struct regmap_config *config, 691 struct lock_class_key *lock_key, 692 const char *lock_name); 693struct regmap *__regmap_init_fsi(struct fsi_device *fsi_dev, 694 const struct regmap_config *config, 695 struct lock_class_key *lock_key, 696 const char *lock_name); 697 698struct regmap *__devm_regmap_init(struct device *dev, 699 const struct regmap_bus *bus, 700 void *bus_context, 701 const struct regmap_config *config, 702 struct lock_class_key *lock_key, 703 const char *lock_name); 704struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, 705 const struct regmap_config *config, 706 struct lock_class_key *lock_key, 707 const char *lock_name); 708struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev, 709 const struct regmap_config *config, 710 struct lock_class_key *lock_key, 711 const char *lock_name); 712struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c, 713 const struct regmap_config *config, 714 struct lock_class_key *lock_key, 715 const char *lock_name); 716struct regmap *__devm_regmap_init_spi(struct spi_device *dev, 717 const struct regmap_config *config, 718 struct lock_class_key *lock_key, 719 const char *lock_name); 720struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev, 721 const struct regmap_config *config, 722 struct lock_class_key *lock_key, 723 const char *lock_name); 724struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev, 725 const struct regmap_config *config, 726 struct lock_class_key *lock_key, 727 const char *lock_name); 728struct regmap *__devm_regmap_init_w1(struct device *w1_dev, 729 const struct regmap_config *config, 730 struct lock_class_key *lock_key, 731 const char *lock_name); 732struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, 733 const char *clk_id, 734 void __iomem *regs, 735 const struct regmap_config *config, 736 struct lock_class_key *lock_key, 737 const char *lock_name); 738struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, 739 const struct regmap_config *config, 740 struct lock_class_key *lock_key, 741 const char *lock_name); 742struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw, 743 const struct regmap_config *config, 744 struct lock_class_key *lock_key, 745 const char *lock_name); 746struct regmap *__devm_regmap_init_sdw_mbq(struct device *dev, struct sdw_slave *sdw, 747 const struct regmap_config *config, 748 const struct regmap_sdw_mbq_cfg *mbq_config, 749 struct lock_class_key *lock_key, 750 const char *lock_name); 751struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, 752 const struct regmap_config *config, 753 struct lock_class_key *lock_key, 754 const char *lock_name); 755struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, 756 const struct regmap_config *config, 757 struct lock_class_key *lock_key, 758 const char *lock_name); 759struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi, 760 const struct regmap_config *config, 761 struct lock_class_key *lock_key, 762 const char *lock_name); 763struct regmap *__devm_regmap_init_fsi(struct fsi_device *fsi_dev, 764 const struct regmap_config *config, 765 struct lock_class_key *lock_key, 766 const char *lock_name); 767 768/* 769 * Wrapper for regmap_init macros to include a unique lockdep key and name 770 * for each call. No-op if CONFIG_LOCKDEP is not set. 771 * 772 * @fn: Real function to call (in the form __[*_]regmap_init[_*]) 773 * @name: Config variable name (#config in the calling macro) 774 **/ 775#ifdef CONFIG_LOCKDEP 776#define __regmap_lockdep_wrapper(fn, name, ...) \ 777( \ 778 ({ \ 779 static struct lock_class_key _key; \ 780 fn(__VA_ARGS__, &_key, \ 781 KBUILD_BASENAME ":" \ 782 __stringify(__LINE__) ":" \ 783 "(" name ")->lock"); \ 784 }) \ 785) 786#else 787#define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL) 788#endif 789 790/** 791 * regmap_init() - Initialise register map 792 * 793 * @dev: Device that will be interacted with 794 * @bus: Bus-specific callbacks to use with device 795 * @bus_context: Data passed to bus-specific callbacks 796 * @config: Configuration for register map 797 * 798 * The return value will be an ERR_PTR() on error or a valid pointer to 799 * a struct regmap. This function should generally not be called 800 * directly, it should be called by bus-specific init functions. 801 */ 802#define regmap_init(dev, bus, bus_context, config) \ 803 __regmap_lockdep_wrapper(__regmap_init, #config, \ 804 dev, bus, bus_context, config) 805int regmap_attach_dev(struct device *dev, struct regmap *map, 806 const struct regmap_config *config); 807 808/** 809 * regmap_init_i2c() - Initialise register map 810 * 811 * @i2c: Device that will be interacted with 812 * @config: Configuration for register map 813 * 814 * The return value will be an ERR_PTR() on error or a valid pointer to 815 * a struct regmap. 816 */ 817#define regmap_init_i2c(i2c, config) \ 818 __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ 819 i2c, config) 820 821/** 822 * regmap_init_mdio() - Initialise register map 823 * 824 * @mdio_dev: Device that will be interacted with 825 * @config: Configuration for register map 826 * 827 * The return value will be an ERR_PTR() on error or a valid pointer to 828 * a struct regmap. 829 */ 830#define regmap_init_mdio(mdio_dev, config) \ 831 __regmap_lockdep_wrapper(__regmap_init_mdio, #config, \ 832 mdio_dev, config) 833 834/** 835 * regmap_init_sccb() - Initialise register map 836 * 837 * @i2c: Device that will be interacted with 838 * @config: Configuration for register map 839 * 840 * The return value will be an ERR_PTR() on error or a valid pointer to 841 * a struct regmap. 842 */ 843#define regmap_init_sccb(i2c, config) \ 844 __regmap_lockdep_wrapper(__regmap_init_sccb, #config, \ 845 i2c, config) 846 847/** 848 * regmap_init_slimbus() - Initialise register map 849 * 850 * @slimbus: Device that will be interacted with 851 * @config: Configuration for register map 852 * 853 * The return value will be an ERR_PTR() on error or a valid pointer to 854 * a struct regmap. 855 */ 856#define regmap_init_slimbus(slimbus, config) \ 857 __regmap_lockdep_wrapper(__regmap_init_slimbus, #config, \ 858 slimbus, config) 859 860/** 861 * regmap_init_spi() - Initialise register map 862 * 863 * @dev: Device that will be interacted with 864 * @config: Configuration for register map 865 * 866 * The return value will be an ERR_PTR() on error or a valid pointer to 867 * a struct regmap. 868 */ 869#define regmap_init_spi(dev, config) \ 870 __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ 871 dev, config) 872 873/** 874 * regmap_init_spmi_base() - Create regmap for the Base register space 875 * 876 * @dev: SPMI device that will be interacted with 877 * @config: Configuration for register map 878 * 879 * The return value will be an ERR_PTR() on error or a valid pointer to 880 * a struct regmap. 881 */ 882#define regmap_init_spmi_base(dev, config) \ 883 __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ 884 dev, config) 885 886/** 887 * regmap_init_spmi_ext() - Create regmap for Ext register space 888 * 889 * @dev: Device that will be interacted with 890 * @config: Configuration for register map 891 * 892 * The return value will be an ERR_PTR() on error or a valid pointer to 893 * a struct regmap. 894 */ 895#define regmap_init_spmi_ext(dev, config) \ 896 __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ 897 dev, config) 898 899/** 900 * regmap_init_w1() - Initialise register map 901 * 902 * @w1_dev: Device that will be interacted with 903 * @config: Configuration for register map 904 * 905 * The return value will be an ERR_PTR() on error or a valid pointer to 906 * a struct regmap. 907 */ 908#define regmap_init_w1(w1_dev, config) \ 909 __regmap_lockdep_wrapper(__regmap_init_w1, #config, \ 910 w1_dev, config) 911 912/** 913 * regmap_init_mmio_clk() - Initialise register map with register clock 914 * 915 * @dev: Device that will be interacted with 916 * @clk_id: register clock consumer ID 917 * @regs: Pointer to memory-mapped IO region 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. Implies 'fast_io'. 922 */ 923#define regmap_init_mmio_clk(dev, clk_id, regs, config) \ 924 __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ 925 dev, clk_id, regs, config) 926 927/** 928 * regmap_init_mmio() - Initialise register map 929 * 930 * @dev: Device that will be interacted with 931 * @regs: Pointer to memory-mapped IO region 932 * @config: Configuration for register map 933 * 934 * The return value will be an ERR_PTR() on error or a valid pointer to 935 * a struct regmap. Implies 'fast_io'. 936 */ 937#define regmap_init_mmio(dev, regs, config) \ 938 regmap_init_mmio_clk(dev, NULL, regs, config) 939 940/** 941 * regmap_init_ac97() - Initialise AC'97 register map 942 * 943 * @ac97: Device that will be interacted with 944 * @config: Configuration for register map 945 * 946 * The return value will be an ERR_PTR() on error or a valid pointer to 947 * a struct regmap. 948 */ 949#define regmap_init_ac97(ac97, config) \ 950 __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \ 951 ac97, config) 952bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); 953 954/** 955 * regmap_init_sdw() - Initialise register map 956 * 957 * @sdw: 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_sdw(sdw, config) \ 964 __regmap_lockdep_wrapper(__regmap_init_sdw, #config, \ 965 sdw, config) 966 967/** 968 * regmap_init_sdw_mbq() - Initialise register map 969 * 970 * @sdw: Device that will be interacted with 971 * @config: Configuration for register map 972 * 973 * The return value will be an ERR_PTR() on error or a valid pointer to 974 * a struct regmap. 975 */ 976#define regmap_init_sdw_mbq(sdw, config) \ 977 __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ 978 &sdw->dev, sdw, config, NULL) 979 980/** 981 * regmap_init_sdw_mbq_cfg() - Initialise MBQ SDW register map with config 982 * 983 * @sdw: Device that will be interacted with 984 * @config: Configuration for register map 985 * @mbq_config: Properties for the MBQ registers 986 * 987 * The return value will be an ERR_PTR() on error or a valid pointer 988 * to a struct regmap. The regmap will be automatically freed by the 989 * device management code. 990 */ 991#define regmap_init_sdw_mbq_cfg(dev, sdw, config, mbq_config) \ 992 __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ 993 dev, sdw, config, mbq_config) 994 995/** 996 * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 997 * to AVMM Bus Bridge 998 * 999 * @spi: Device that will be interacted with 1000 * @config: Configuration for register map 1001 * 1002 * The return value will be an ERR_PTR() on error or a valid pointer 1003 * to a struct regmap. 1004 */ 1005#define regmap_init_spi_avmm(spi, config) \ 1006 __regmap_lockdep_wrapper(__regmap_init_spi_avmm, #config, \ 1007 spi, config) 1008 1009/** 1010 * regmap_init_fsi() - Initialise register map 1011 * 1012 * @fsi_dev: Device that will be interacted with 1013 * @config: Configuration for register map 1014 * 1015 * The return value will be an ERR_PTR() on error or a valid pointer to 1016 * a struct regmap. 1017 */ 1018#define regmap_init_fsi(fsi_dev, config) \ 1019 __regmap_lockdep_wrapper(__regmap_init_fsi, #config, fsi_dev, \ 1020 config) 1021 1022/** 1023 * devm_regmap_init() - Initialise managed register map 1024 * 1025 * @dev: Device that will be interacted with 1026 * @bus: Bus-specific callbacks to use with device 1027 * @bus_context: Data passed to bus-specific callbacks 1028 * @config: Configuration for register map 1029 * 1030 * The return value will be an ERR_PTR() on error or a valid pointer 1031 * to a struct regmap. This function should generally not be called 1032 * directly, it should be called by bus-specific init functions. The 1033 * map will be automatically freed by the device management code. 1034 */ 1035#define devm_regmap_init(dev, bus, bus_context, config) \ 1036 __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ 1037 dev, bus, bus_context, config) 1038 1039/** 1040 * devm_regmap_init_i2c() - Initialise managed register map 1041 * 1042 * @i2c: Device that will be interacted with 1043 * @config: Configuration for register map 1044 * 1045 * The return value will be an ERR_PTR() on error or a valid pointer 1046 * to a struct regmap. The regmap will be automatically freed by the 1047 * device management code. 1048 */ 1049#define devm_regmap_init_i2c(i2c, config) \ 1050 __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ 1051 i2c, config) 1052 1053/** 1054 * devm_regmap_init_mdio() - Initialise managed register map 1055 * 1056 * @mdio_dev: Device that will be interacted with 1057 * @config: Configuration for register map 1058 * 1059 * The return value will be an ERR_PTR() on error or a valid pointer 1060 * to a struct regmap. The regmap will be automatically freed by the 1061 * device management code. 1062 */ 1063#define devm_regmap_init_mdio(mdio_dev, config) \ 1064 __regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config, \ 1065 mdio_dev, config) 1066 1067/** 1068 * devm_regmap_init_sccb() - Initialise managed register map 1069 * 1070 * @i2c: Device that will be interacted with 1071 * @config: Configuration for register map 1072 * 1073 * The return value will be an ERR_PTR() on error or a valid pointer 1074 * to a struct regmap. The regmap will be automatically freed by the 1075 * device management code. 1076 */ 1077#define devm_regmap_init_sccb(i2c, config) \ 1078 __regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config, \ 1079 i2c, config) 1080 1081/** 1082 * devm_regmap_init_spi() - Initialise register map 1083 * 1084 * @dev: Device that will be interacted with 1085 * @config: Configuration for register map 1086 * 1087 * The return value will be an ERR_PTR() on error or a valid pointer 1088 * to a struct regmap. The map will be automatically freed by the 1089 * device management code. 1090 */ 1091#define devm_regmap_init_spi(dev, config) \ 1092 __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ 1093 dev, config) 1094 1095/** 1096 * devm_regmap_init_spmi_base() - Create managed regmap for Base register space 1097 * 1098 * @dev: SPMI device that will be interacted with 1099 * @config: Configuration for register map 1100 * 1101 * The return value will be an ERR_PTR() on error or a valid pointer 1102 * to a struct regmap. The regmap will be automatically freed by the 1103 * device management code. 1104 */ 1105#define devm_regmap_init_spmi_base(dev, config) \ 1106 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ 1107 dev, config) 1108 1109/** 1110 * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space 1111 * 1112 * @dev: SPMI device that will be interacted with 1113 * @config: Configuration for register map 1114 * 1115 * The return value will be an ERR_PTR() on error or a valid pointer 1116 * to a struct regmap. The regmap will be automatically freed by the 1117 * device management code. 1118 */ 1119#define devm_regmap_init_spmi_ext(dev, config) \ 1120 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ 1121 dev, config) 1122 1123/** 1124 * devm_regmap_init_w1() - Initialise managed register map 1125 * 1126 * @w1_dev: Device that will be interacted with 1127 * @config: Configuration for register map 1128 * 1129 * The return value will be an ERR_PTR() on error or a valid pointer 1130 * to a struct regmap. The regmap will be automatically freed by the 1131 * device management code. 1132 */ 1133#define devm_regmap_init_w1(w1_dev, config) \ 1134 __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config, \ 1135 w1_dev, config) 1136/** 1137 * devm_regmap_init_mmio_clk() - Initialise managed register map with clock 1138 * 1139 * @dev: Device that will be interacted with 1140 * @clk_id: register clock consumer ID 1141 * @regs: Pointer to memory-mapped IO region 1142 * @config: Configuration for register map 1143 * 1144 * The return value will be an ERR_PTR() on error or a valid pointer 1145 * to a struct regmap. The regmap will be automatically freed by the 1146 * device management code. Implies 'fast_io'. 1147 */ 1148#define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \ 1149 __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \ 1150 dev, clk_id, regs, config) 1151 1152/** 1153 * devm_regmap_init_mmio() - Initialise managed register map 1154 * 1155 * @dev: Device that will be interacted with 1156 * @regs: Pointer to memory-mapped IO region 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. Implies 'fast_io'. 1162 */ 1163#define devm_regmap_init_mmio(dev, regs, config) \ 1164 devm_regmap_init_mmio_clk(dev, NULL, regs, config) 1165 1166/** 1167 * devm_regmap_init_ac97() - Initialise AC'97 register map 1168 * 1169 * @ac97: Device that will be interacted with 1170 * @config: Configuration for register map 1171 * 1172 * The return value will be an ERR_PTR() on error or a valid pointer 1173 * to a struct regmap. The regmap will be automatically freed by the 1174 * device management code. 1175 */ 1176#define devm_regmap_init_ac97(ac97, config) \ 1177 __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ 1178 ac97, config) 1179 1180/** 1181 * devm_regmap_init_sdw() - Initialise managed register map 1182 * 1183 * @sdw: Device that will be interacted with 1184 * @config: Configuration for register map 1185 * 1186 * The return value will be an ERR_PTR() on error or a valid pointer 1187 * to a struct regmap. The regmap will be automatically freed by the 1188 * device management code. 1189 */ 1190#define devm_regmap_init_sdw(sdw, config) \ 1191 __regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \ 1192 sdw, config) 1193 1194/** 1195 * devm_regmap_init_sdw_mbq() - Initialise managed register map 1196 * 1197 * @sdw: Device that will be interacted with 1198 * @config: Configuration for register map 1199 * 1200 * The return value will be an ERR_PTR() on error or a valid pointer 1201 * to a struct regmap. The regmap will be automatically freed by the 1202 * device management code. 1203 */ 1204#define devm_regmap_init_sdw_mbq(sdw, config) \ 1205 __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config, \ 1206 &sdw->dev, sdw, config, NULL) 1207 1208/** 1209 * devm_regmap_init_sdw_mbq_cfg() - Initialise managed MBQ SDW register map with config 1210 * 1211 * @dev: Device that will be interacted with 1212 * @sdw: SoundWire Device that will be interacted with 1213 * @config: Configuration for register map 1214 * @mbq_config: Properties for the MBQ registers 1215 * 1216 * The return value will be an ERR_PTR() on error or a valid pointer 1217 * to a struct regmap. The regmap will be automatically freed by the 1218 * device management code. 1219 */ 1220#define devm_regmap_init_sdw_mbq_cfg(dev, sdw, config, mbq_config) \ 1221 __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, \ 1222 #config, dev, sdw, config, mbq_config) 1223 1224/** 1225 * devm_regmap_init_slimbus() - Initialise managed register map 1226 * 1227 * @slimbus: Device that will be interacted with 1228 * @config: Configuration for register map 1229 * 1230 * The return value will be an ERR_PTR() on error or a valid pointer 1231 * to a struct regmap. The regmap will be automatically freed by the 1232 * device management code. 1233 */ 1234#define devm_regmap_init_slimbus(slimbus, config) \ 1235 __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \ 1236 slimbus, config) 1237 1238/** 1239 * devm_regmap_init_i3c() - Initialise managed register map 1240 * 1241 * @i3c: Device that will be interacted with 1242 * @config: Configuration for register map 1243 * 1244 * The return value will be an ERR_PTR() on error or a valid pointer 1245 * to a struct regmap. The regmap will be automatically freed by the 1246 * device management code. 1247 */ 1248#define devm_regmap_init_i3c(i3c, config) \ 1249 __regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config, \ 1250 i3c, config) 1251 1252/** 1253 * devm_regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 1254 * to AVMM Bus Bridge 1255 * 1256 * @spi: Device that will be interacted with 1257 * @config: Configuration for register map 1258 * 1259 * The return value will be an ERR_PTR() on error or a valid pointer 1260 * to a struct regmap. The map will be automatically freed by the 1261 * device management code. 1262 */ 1263#define devm_regmap_init_spi_avmm(spi, config) \ 1264 __regmap_lockdep_wrapper(__devm_regmap_init_spi_avmm, #config, \ 1265 spi, config) 1266 1267/** 1268 * devm_regmap_init_fsi() - Initialise managed register map 1269 * 1270 * @fsi_dev: Device that will be interacted with 1271 * @config: Configuration for register map 1272 * 1273 * The return value will be an ERR_PTR() on error or a valid pointer 1274 * to a struct regmap. The regmap will be automatically freed by the 1275 * device management code. 1276 */ 1277#define devm_regmap_init_fsi(fsi_dev, config) \ 1278 __regmap_lockdep_wrapper(__devm_regmap_init_fsi, #config, \ 1279 fsi_dev, config) 1280 1281int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); 1282void regmap_mmio_detach_clk(struct regmap *map); 1283void regmap_exit(struct regmap *map); 1284int regmap_reinit_cache(struct regmap *map, 1285 const struct regmap_config *config); 1286struct regmap *dev_get_regmap(struct device *dev, const char *name); 1287struct device *regmap_get_device(struct regmap *map); 1288int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); 1289int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); 1290int regmap_raw_write(struct regmap *map, unsigned int reg, 1291 const void *val, size_t val_len); 1292int regmap_noinc_write(struct regmap *map, unsigned int reg, 1293 const void *val, size_t val_len); 1294int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, 1295 size_t val_count); 1296int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, 1297 int num_regs); 1298int regmap_multi_reg_write_bypassed(struct regmap *map, 1299 const struct reg_sequence *regs, 1300 int num_regs); 1301int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1302 const void *val, size_t val_len); 1303int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); 1304int regmap_read_bypassed(struct regmap *map, unsigned int reg, unsigned int *val); 1305int regmap_raw_read(struct regmap *map, unsigned int reg, 1306 void *val, size_t val_len); 1307int regmap_noinc_read(struct regmap *map, unsigned int reg, 1308 void *val, size_t val_len); 1309int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, 1310 size_t val_count); 1311int regmap_multi_reg_read(struct regmap *map, const unsigned int *reg, void *val, 1312 size_t val_count); 1313int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1314 unsigned int mask, unsigned int val, 1315 bool *change, bool async, bool force); 1316 1317static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1318 unsigned int mask, unsigned int val) 1319{ 1320 return regmap_update_bits_base(map, reg, mask, val, NULL, false, false); 1321} 1322 1323static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg, 1324 unsigned int mask, unsigned int val) 1325{ 1326 return regmap_update_bits_base(map, reg, mask, val, NULL, true, false); 1327} 1328 1329static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1330 unsigned int mask, unsigned int val, 1331 bool *change) 1332{ 1333 return regmap_update_bits_base(map, reg, mask, val, 1334 change, false, false); 1335} 1336 1337static inline int 1338regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1339 unsigned int mask, unsigned int val, 1340 bool *change) 1341{ 1342 return regmap_update_bits_base(map, reg, mask, val, 1343 change, true, false); 1344} 1345 1346static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1347 unsigned int mask, unsigned int val) 1348{ 1349 return regmap_update_bits_base(map, reg, mask, val, NULL, false, true); 1350} 1351 1352int regmap_get_val_bytes(struct regmap *map); 1353int regmap_get_max_register(struct regmap *map); 1354int regmap_get_reg_stride(struct regmap *map); 1355bool regmap_might_sleep(struct regmap *map); 1356int regmap_async_complete(struct regmap *map); 1357bool regmap_can_raw_write(struct regmap *map); 1358size_t regmap_get_raw_read_max(struct regmap *map); 1359size_t regmap_get_raw_write_max(struct regmap *map); 1360 1361void regcache_sort_defaults(struct reg_default *defaults, unsigned int ndefaults); 1362int regcache_sync(struct regmap *map); 1363int regcache_sync_region(struct regmap *map, unsigned int min, 1364 unsigned int max); 1365int regcache_drop_region(struct regmap *map, unsigned int min, 1366 unsigned int max); 1367void regcache_cache_only(struct regmap *map, bool enable); 1368void regcache_cache_bypass(struct regmap *map, bool enable); 1369void regcache_mark_dirty(struct regmap *map); 1370bool regcache_reg_cached(struct regmap *map, unsigned int reg); 1371 1372bool regmap_check_range_table(struct regmap *map, unsigned int reg, 1373 const struct regmap_access_table *table); 1374 1375int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs, 1376 int num_regs); 1377int regmap_parse_val(struct regmap *map, const void *buf, 1378 unsigned int *val); 1379 1380static inline bool regmap_reg_in_range(unsigned int reg, 1381 const struct regmap_range *range) 1382{ 1383 return reg >= range->range_min && reg <= range->range_max; 1384} 1385 1386bool regmap_reg_in_ranges(unsigned int reg, 1387 const struct regmap_range *ranges, 1388 unsigned int nranges); 1389 1390static inline int regmap_set_bits(struct regmap *map, 1391 unsigned int reg, unsigned int bits) 1392{ 1393 return regmap_update_bits_base(map, reg, bits, bits, 1394 NULL, false, false); 1395} 1396 1397static inline int regmap_clear_bits(struct regmap *map, 1398 unsigned int reg, unsigned int bits) 1399{ 1400 return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false); 1401} 1402 1403static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, 1404 unsigned int bits, bool value) 1405{ 1406 if (value) 1407 return regmap_set_bits(map, reg, bits); 1408 else 1409 return regmap_clear_bits(map, reg, bits); 1410} 1411 1412int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits); 1413 1414/** 1415 * struct reg_field - Description of an register field 1416 * 1417 * @reg: Offset of the register within the regmap bank 1418 * @lsb: lsb of the register field. 1419 * @msb: msb of the register field. 1420 * @id_size: port size if it has some ports 1421 * @id_offset: address offset for each ports 1422 */ 1423struct reg_field { 1424 unsigned int reg; 1425 unsigned int lsb; 1426 unsigned int msb; 1427 unsigned int id_size; 1428 unsigned int id_offset; 1429}; 1430 1431#define REG_FIELD(_reg, _lsb, _msb) { \ 1432 .reg = _reg, \ 1433 .lsb = _lsb, \ 1434 .msb = _msb, \ 1435 } 1436 1437#define REG_FIELD_ID(_reg, _lsb, _msb, _size, _offset) { \ 1438 .reg = _reg, \ 1439 .lsb = _lsb, \ 1440 .msb = _msb, \ 1441 .id_size = _size, \ 1442 .id_offset = _offset, \ 1443 } 1444 1445struct regmap_field *regmap_field_alloc(struct regmap *regmap, 1446 struct reg_field reg_field); 1447void regmap_field_free(struct regmap_field *field); 1448 1449struct regmap_field *devm_regmap_field_alloc(struct device *dev, 1450 struct regmap *regmap, struct reg_field reg_field); 1451void devm_regmap_field_free(struct device *dev, struct regmap_field *field); 1452 1453int regmap_field_bulk_alloc(struct regmap *regmap, 1454 struct regmap_field **rm_field, 1455 const struct reg_field *reg_field, 1456 int num_fields); 1457void regmap_field_bulk_free(struct regmap_field *field); 1458int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap, 1459 struct regmap_field **field, 1460 const struct reg_field *reg_field, 1461 int num_fields); 1462void devm_regmap_field_bulk_free(struct device *dev, 1463 struct regmap_field *field); 1464 1465int regmap_field_read(struct regmap_field *field, unsigned int *val); 1466int regmap_field_update_bits_base(struct regmap_field *field, 1467 unsigned int mask, unsigned int val, 1468 bool *change, bool async, bool force); 1469int regmap_fields_read(struct regmap_field *field, unsigned int id, 1470 unsigned int *val); 1471int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, 1472 unsigned int mask, unsigned int val, 1473 bool *change, bool async, bool force); 1474 1475static inline int regmap_field_write(struct regmap_field *field, 1476 unsigned int val) 1477{ 1478 return regmap_field_update_bits_base(field, ~0, val, 1479 NULL, false, false); 1480} 1481 1482static inline int regmap_field_force_write(struct regmap_field *field, 1483 unsigned int val) 1484{ 1485 return regmap_field_update_bits_base(field, ~0, val, NULL, false, true); 1486} 1487 1488static inline int regmap_field_update_bits(struct regmap_field *field, 1489 unsigned int mask, unsigned int val) 1490{ 1491 return regmap_field_update_bits_base(field, mask, val, 1492 NULL, false, false); 1493} 1494 1495static inline int regmap_field_set_bits(struct regmap_field *field, 1496 unsigned int bits) 1497{ 1498 return regmap_field_update_bits_base(field, bits, bits, NULL, false, 1499 false); 1500} 1501 1502static inline int regmap_field_clear_bits(struct regmap_field *field, 1503 unsigned int bits) 1504{ 1505 return regmap_field_update_bits_base(field, bits, 0, NULL, false, 1506 false); 1507} 1508 1509int regmap_field_test_bits(struct regmap_field *field, unsigned int bits); 1510 1511static inline int 1512regmap_field_force_update_bits(struct regmap_field *field, 1513 unsigned int mask, unsigned int val) 1514{ 1515 return regmap_field_update_bits_base(field, mask, val, 1516 NULL, false, true); 1517} 1518 1519static inline int regmap_fields_write(struct regmap_field *field, 1520 unsigned int id, unsigned int val) 1521{ 1522 return regmap_fields_update_bits_base(field, id, ~0, val, 1523 NULL, false, false); 1524} 1525 1526static inline int regmap_fields_force_write(struct regmap_field *field, 1527 unsigned int id, unsigned int val) 1528{ 1529 return regmap_fields_update_bits_base(field, id, ~0, val, 1530 NULL, false, true); 1531} 1532 1533static inline int 1534regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 1535 unsigned int mask, unsigned int val) 1536{ 1537 return regmap_fields_update_bits_base(field, id, mask, val, 1538 NULL, false, false); 1539} 1540 1541static inline int 1542regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 1543 unsigned int mask, unsigned int val) 1544{ 1545 return regmap_fields_update_bits_base(field, id, mask, val, 1546 NULL, false, true); 1547} 1548 1549/** 1550 * struct regmap_irq_type - IRQ type definitions. 1551 * 1552 * @type_reg_offset: Offset register for the irq type setting. 1553 * @type_rising_val: Register value to configure RISING type irq. 1554 * @type_falling_val: Register value to configure FALLING type irq. 1555 * @type_level_low_val: Register value to configure LEVEL_LOW type irq. 1556 * @type_level_high_val: Register value to configure LEVEL_HIGH type irq. 1557 * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types. 1558 */ 1559struct regmap_irq_type { 1560 unsigned int type_reg_offset; 1561 unsigned int type_reg_mask; 1562 unsigned int type_rising_val; 1563 unsigned int type_falling_val; 1564 unsigned int type_level_low_val; 1565 unsigned int type_level_high_val; 1566 unsigned int types_supported; 1567}; 1568 1569/** 1570 * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip. 1571 * 1572 * @reg_offset: Offset of the status/mask register within the bank 1573 * @mask: Mask used to flag/control the register. 1574 * @type: IRQ trigger type setting details if supported. 1575 */ 1576struct regmap_irq { 1577 unsigned int reg_offset; 1578 unsigned int mask; 1579 struct regmap_irq_type type; 1580}; 1581 1582#define REGMAP_IRQ_REG(_irq, _off, _mask) \ 1583 [_irq] = { .reg_offset = (_off), .mask = (_mask) } 1584 1585#define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \ 1586 [_id] = { \ 1587 .mask = BIT((_id) % (_reg_bits)), \ 1588 .reg_offset = (_id) / (_reg_bits), \ 1589 } 1590 1591#define REGMAP_IRQ_MAIN_REG_OFFSET(arr) \ 1592 { .num_regs = ARRAY_SIZE((arr)), .offset = &(arr)[0] } 1593 1594struct regmap_irq_sub_irq_map { 1595 unsigned int num_regs; 1596 unsigned int *offset; 1597}; 1598 1599struct regmap_irq_chip_data; 1600 1601/** 1602 * struct regmap_irq_chip - Description of a generic regmap irq_chip. 1603 * 1604 * @name: Descriptive name for IRQ controller. 1605 * @domain_suffix: Name suffix to be appended to end of IRQ domain name. Needed 1606 * when multiple regmap-IRQ controllers are created from same 1607 * device. 1608 * 1609 * @main_status: Base main status register address. For chips which have 1610 * interrupts arranged in separate sub-irq blocks with own IRQ 1611 * registers and which have a main IRQ registers indicating 1612 * sub-irq blocks with unhandled interrupts. For such chips fill 1613 * sub-irq register information in status_base, mask_base and 1614 * ack_base. 1615 * @num_main_status_bits: Should be given to chips where number of meaningfull 1616 * main status bits differs from num_regs. 1617 * @sub_reg_offsets: arrays of mappings from main register bits to sub irq 1618 * registers. First item in array describes the registers 1619 * for first main status bit. Second array for second bit etc. 1620 * Offset is given as sub register status offset to 1621 * status_base. Should contain num_regs arrays. 1622 * Can be provided for chips with more complex mapping than 1623 * 1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ... 1624 * @num_main_regs: Number of 'main status' irq registers for chips which have 1625 * main_status set. 1626 * 1627 * @status_base: Base status register address. 1628 * @mask_base: Base mask register address. Mask bits are set to 1 when an 1629 * interrupt is masked, 0 when unmasked. 1630 * @unmask_base: Base unmask register address. Unmask bits are set to 1 when 1631 * an interrupt is unmasked and 0 when masked. 1632 * @ack_base: Base ack address. If zero then the chip is clear on read. 1633 * Using zero value is possible with @use_ack bit. 1634 * @wake_base: Base address for wake enables. If zero unsupported. 1635 * @config_base: Base address for IRQ type config regs. If null unsupported. 1636 * @irq_reg_stride: Stride to use for chips where registers are not contiguous. 1637 * @init_ack_masked: Ack all masked interrupts once during initalization. 1638 * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set 1639 * both @mask_base and @unmask_base. If false, mask and unmask bits are 1640 * inverted (which is deprecated behavior); if true, bits will not be 1641 * inverted and the registers keep their normal behavior. Note that if 1642 * you use only one of @mask_base or @unmask_base, this flag has no 1643 * effect and is unnecessary. Any new drivers that set both @mask_base 1644 * and @unmask_base should set this to true to avoid relying on the 1645 * deprecated behavior. 1646 * @use_ack: Use @ack register even if it is zero. 1647 * @ack_invert: Inverted ack register: cleared bits for ack. 1648 * @clear_ack: Use this to set 1 and 0 or vice-versa to clear interrupts. 1649 * @status_invert: Inverted status register: cleared bits are active interrupts. 1650 * @status_is_level: Status register is actuall signal level: Xor status 1651 * register with previous value to get active interrupts. 1652 * @wake_invert: Inverted wake register: cleared bits are wake disabled. 1653 * @type_in_mask: Use the mask registers for controlling irq type. Use this if 1654 * the hardware provides separate bits for rising/falling edge 1655 * or low/high level interrupts and they should be combined into 1656 * a single logical interrupt. Use &struct regmap_irq_type data 1657 * to define the mask bit for each irq type. 1658 * @clear_on_unmask: For chips with interrupts cleared on read: read the status 1659 * registers before unmasking interrupts to clear any bits 1660 * set when they were masked. 1661 * @runtime_pm: Hold a runtime PM lock on the device when accessing it. 1662 * @no_status: No status register: all interrupts assumed generated by device. 1663 * 1664 * @num_regs: Number of registers in each control bank. 1665 * 1666 * @irqs: Descriptors for individual IRQs. Interrupt numbers are 1667 * assigned based on the index in the array of the interrupt. 1668 * @num_irqs: Number of descriptors. 1669 * @num_config_bases: Number of config base registers. 1670 * @num_config_regs: Number of config registers for each config base register. 1671 * 1672 * @handle_pre_irq: Driver specific callback to handle interrupt from device 1673 * before regmap_irq_handler process the interrupts. 1674 * @handle_post_irq: Driver specific callback to handle interrupt from device 1675 * after handling the interrupts in regmap_irq_handler(). 1676 * @handle_mask_sync: Callback used to handle IRQ mask syncs. The index will be 1677 * in the range [0, num_regs) 1678 * @set_type_config: Callback used for configuring irq types. 1679 * @get_irq_reg: Callback for mapping (base register, index) pairs to register 1680 * addresses. The base register will be one of @status_base, 1681 * @mask_base, etc., @main_status, or any of @config_base. 1682 * The index will be in the range [0, num_main_regs[ for the 1683 * main status base, [0, num_config_regs[ for any config 1684 * register base, and [0, num_regs[ for any other base. 1685 * If unspecified then regmap_irq_get_irq_reg_linear() is used. 1686 * @irq_drv_data: Driver specific IRQ data which is passed as parameter when 1687 * driver specific pre/post interrupt handler is called. 1688 * 1689 * This is not intended to handle every possible interrupt controller, but 1690 * it should handle a substantial proportion of those that are found in the 1691 * wild. 1692 */ 1693struct regmap_irq_chip { 1694 const char *name; 1695 const char *domain_suffix; 1696 1697 unsigned int main_status; 1698 unsigned int num_main_status_bits; 1699 const struct regmap_irq_sub_irq_map *sub_reg_offsets; 1700 int num_main_regs; 1701 1702 unsigned int status_base; 1703 unsigned int mask_base; 1704 unsigned int unmask_base; 1705 unsigned int ack_base; 1706 unsigned int wake_base; 1707 const unsigned int *config_base; 1708 unsigned int irq_reg_stride; 1709 unsigned int init_ack_masked:1; 1710 unsigned int mask_unmask_non_inverted:1; 1711 unsigned int use_ack:1; 1712 unsigned int ack_invert:1; 1713 unsigned int clear_ack:1; 1714 unsigned int status_invert:1; 1715 unsigned int status_is_level:1; 1716 unsigned int wake_invert:1; 1717 unsigned int type_in_mask:1; 1718 unsigned int clear_on_unmask:1; 1719 unsigned int runtime_pm:1; 1720 unsigned int no_status:1; 1721 1722 int num_regs; 1723 1724 const struct regmap_irq *irqs; 1725 int num_irqs; 1726 1727 int num_config_bases; 1728 int num_config_regs; 1729 1730 int (*handle_pre_irq)(void *irq_drv_data); 1731 int (*handle_post_irq)(void *irq_drv_data); 1732 int (*handle_mask_sync)(int index, unsigned int mask_buf_def, 1733 unsigned int mask_buf, void *irq_drv_data); 1734 int (*set_type_config)(unsigned int **buf, unsigned int type, 1735 const struct regmap_irq *irq_data, int idx, 1736 void *irq_drv_data); 1737 unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data, 1738 unsigned int base, int index); 1739 void *irq_drv_data; 1740}; 1741 1742unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data, 1743 unsigned int base, int index); 1744int regmap_irq_set_type_config_simple(unsigned int **buf, unsigned int type, 1745 const struct regmap_irq *irq_data, 1746 int idx, void *irq_drv_data); 1747 1748int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, 1749 int irq_base, const struct regmap_irq_chip *chip, 1750 struct regmap_irq_chip_data **data); 1751int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode, 1752 struct regmap *map, int irq, 1753 int irq_flags, int irq_base, 1754 const struct regmap_irq_chip *chip, 1755 struct regmap_irq_chip_data **data); 1756void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); 1757 1758int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq, 1759 int irq_flags, int irq_base, 1760 const struct regmap_irq_chip *chip, 1761 struct regmap_irq_chip_data **data); 1762int devm_regmap_add_irq_chip_fwnode(struct device *dev, 1763 struct fwnode_handle *fwnode, 1764 struct regmap *map, int irq, 1765 int irq_flags, int irq_base, 1766 const struct regmap_irq_chip *chip, 1767 struct regmap_irq_chip_data **data); 1768void devm_regmap_del_irq_chip(struct device *dev, int irq, 1769 struct regmap_irq_chip_data *data); 1770 1771int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); 1772int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); 1773struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); 1774 1775#else 1776 1777/* 1778 * These stubs should only ever be called by generic code which has 1779 * regmap based facilities, if they ever get called at runtime 1780 * something is going wrong and something probably needs to select 1781 * REGMAP. 1782 */ 1783 1784static inline int regmap_write(struct regmap *map, unsigned int reg, 1785 unsigned int val) 1786{ 1787 WARN_ONCE(1, "regmap API is disabled"); 1788 return -EINVAL; 1789} 1790 1791static inline int regmap_write_async(struct regmap *map, unsigned int reg, 1792 unsigned int val) 1793{ 1794 WARN_ONCE(1, "regmap API is disabled"); 1795 return -EINVAL; 1796} 1797 1798static inline int regmap_raw_write(struct regmap *map, unsigned int reg, 1799 const void *val, size_t val_len) 1800{ 1801 WARN_ONCE(1, "regmap API is disabled"); 1802 return -EINVAL; 1803} 1804 1805static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1806 const void *val, size_t val_len) 1807{ 1808 WARN_ONCE(1, "regmap API is disabled"); 1809 return -EINVAL; 1810} 1811 1812static inline int regmap_noinc_write(struct regmap *map, unsigned int reg, 1813 const void *val, size_t val_len) 1814{ 1815 WARN_ONCE(1, "regmap API is disabled"); 1816 return -EINVAL; 1817} 1818 1819static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, 1820 const void *val, size_t val_count) 1821{ 1822 WARN_ONCE(1, "regmap API is disabled"); 1823 return -EINVAL; 1824} 1825 1826static inline int regmap_read(struct regmap *map, unsigned int reg, 1827 unsigned int *val) 1828{ 1829 WARN_ONCE(1, "regmap API is disabled"); 1830 return -EINVAL; 1831} 1832 1833static inline int regmap_read_bypassed(struct regmap *map, unsigned int reg, 1834 unsigned int *val) 1835{ 1836 WARN_ONCE(1, "regmap API is disabled"); 1837 return -EINVAL; 1838} 1839 1840static inline int regmap_raw_read(struct regmap *map, unsigned int reg, 1841 void *val, size_t val_len) 1842{ 1843 WARN_ONCE(1, "regmap API is disabled"); 1844 return -EINVAL; 1845} 1846 1847static inline int regmap_noinc_read(struct regmap *map, unsigned int reg, 1848 void *val, size_t val_len) 1849{ 1850 WARN_ONCE(1, "regmap API is disabled"); 1851 return -EINVAL; 1852} 1853 1854static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, 1855 void *val, size_t val_count) 1856{ 1857 WARN_ONCE(1, "regmap API is disabled"); 1858 return -EINVAL; 1859} 1860 1861static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1862 unsigned int mask, unsigned int val, 1863 bool *change, bool async, bool force) 1864{ 1865 WARN_ONCE(1, "regmap API is disabled"); 1866 return -EINVAL; 1867} 1868 1869static inline int regmap_set_bits(struct regmap *map, 1870 unsigned int reg, unsigned int bits) 1871{ 1872 WARN_ONCE(1, "regmap API is disabled"); 1873 return -EINVAL; 1874} 1875 1876static inline int regmap_clear_bits(struct regmap *map, 1877 unsigned int reg, unsigned int bits) 1878{ 1879 WARN_ONCE(1, "regmap API is disabled"); 1880 return -EINVAL; 1881} 1882 1883static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, 1884 unsigned int bits, bool value) 1885{ 1886 WARN_ONCE(1, "regmap API is disabled"); 1887 return -EINVAL; 1888} 1889 1890static inline int regmap_test_bits(struct regmap *map, 1891 unsigned int reg, unsigned int bits) 1892{ 1893 WARN_ONCE(1, "regmap API is disabled"); 1894 return -EINVAL; 1895} 1896 1897static inline int regmap_field_update_bits_base(struct regmap_field *field, 1898 unsigned int mask, unsigned int val, 1899 bool *change, bool async, bool force) 1900{ 1901 WARN_ONCE(1, "regmap API is disabled"); 1902 return -EINVAL; 1903} 1904 1905static inline int regmap_fields_update_bits_base(struct regmap_field *field, 1906 unsigned int id, 1907 unsigned int mask, unsigned int val, 1908 bool *change, bool async, bool force) 1909{ 1910 WARN_ONCE(1, "regmap API is disabled"); 1911 return -EINVAL; 1912} 1913 1914static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1915 unsigned int mask, unsigned int val) 1916{ 1917 WARN_ONCE(1, "regmap API is disabled"); 1918 return -EINVAL; 1919} 1920 1921static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg, 1922 unsigned int mask, unsigned int val) 1923{ 1924 WARN_ONCE(1, "regmap API is disabled"); 1925 return -EINVAL; 1926} 1927 1928static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1929 unsigned int mask, unsigned int val, 1930 bool *change) 1931{ 1932 WARN_ONCE(1, "regmap API is disabled"); 1933 return -EINVAL; 1934} 1935 1936static inline int 1937regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1938 unsigned int mask, unsigned int val, 1939 bool *change) 1940{ 1941 WARN_ONCE(1, "regmap API is disabled"); 1942 return -EINVAL; 1943} 1944 1945static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1946 unsigned int mask, unsigned int val) 1947{ 1948 WARN_ONCE(1, "regmap API is disabled"); 1949 return -EINVAL; 1950} 1951 1952static inline int regmap_field_write(struct regmap_field *field, 1953 unsigned int val) 1954{ 1955 WARN_ONCE(1, "regmap API is disabled"); 1956 return -EINVAL; 1957} 1958 1959static inline int regmap_field_force_write(struct regmap_field *field, 1960 unsigned int val) 1961{ 1962 WARN_ONCE(1, "regmap API is disabled"); 1963 return -EINVAL; 1964} 1965 1966static inline int regmap_field_update_bits(struct regmap_field *field, 1967 unsigned int mask, unsigned int val) 1968{ 1969 WARN_ONCE(1, "regmap API is disabled"); 1970 return -EINVAL; 1971} 1972 1973static inline int 1974regmap_field_force_update_bits(struct regmap_field *field, 1975 unsigned int mask, unsigned int val) 1976{ 1977 WARN_ONCE(1, "regmap API is disabled"); 1978 return -EINVAL; 1979} 1980 1981static inline int regmap_field_set_bits(struct regmap_field *field, 1982 unsigned int bits) 1983{ 1984 WARN_ONCE(1, "regmap API is disabled"); 1985 return -EINVAL; 1986} 1987 1988static inline int regmap_field_clear_bits(struct regmap_field *field, 1989 unsigned int bits) 1990{ 1991 WARN_ONCE(1, "regmap API is disabled"); 1992 return -EINVAL; 1993} 1994 1995static inline int regmap_field_test_bits(struct regmap_field *field, 1996 unsigned int bits) 1997{ 1998 WARN_ONCE(1, "regmap API is disabled"); 1999 return -EINVAL; 2000} 2001 2002static inline int regmap_fields_write(struct regmap_field *field, 2003 unsigned int id, unsigned int val) 2004{ 2005 WARN_ONCE(1, "regmap API is disabled"); 2006 return -EINVAL; 2007} 2008 2009static inline int regmap_fields_force_write(struct regmap_field *field, 2010 unsigned int id, unsigned int val) 2011{ 2012 WARN_ONCE(1, "regmap API is disabled"); 2013 return -EINVAL; 2014} 2015 2016static inline int 2017regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 2018 unsigned int mask, unsigned int val) 2019{ 2020 WARN_ONCE(1, "regmap API is disabled"); 2021 return -EINVAL; 2022} 2023 2024static inline int 2025regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 2026 unsigned int mask, unsigned int val) 2027{ 2028 WARN_ONCE(1, "regmap API is disabled"); 2029 return -EINVAL; 2030} 2031 2032static inline int regmap_get_val_bytes(struct regmap *map) 2033{ 2034 WARN_ONCE(1, "regmap API is disabled"); 2035 return -EINVAL; 2036} 2037 2038static inline int regmap_get_max_register(struct regmap *map) 2039{ 2040 WARN_ONCE(1, "regmap API is disabled"); 2041 return -EINVAL; 2042} 2043 2044static inline int regmap_get_reg_stride(struct regmap *map) 2045{ 2046 WARN_ONCE(1, "regmap API is disabled"); 2047 return -EINVAL; 2048} 2049 2050static inline bool regmap_might_sleep(struct regmap *map) 2051{ 2052 WARN_ONCE(1, "regmap API is disabled"); 2053 return true; 2054} 2055 2056static inline void regcache_sort_defaults(struct reg_default *defaults, 2057 unsigned int ndefaults) 2058{ 2059 WARN_ONCE(1, "regmap API is disabled"); 2060} 2061 2062static inline int regcache_sync(struct regmap *map) 2063{ 2064 WARN_ONCE(1, "regmap API is disabled"); 2065 return -EINVAL; 2066} 2067 2068static inline int regcache_sync_region(struct regmap *map, unsigned int min, 2069 unsigned int max) 2070{ 2071 WARN_ONCE(1, "regmap API is disabled"); 2072 return -EINVAL; 2073} 2074 2075static inline int regcache_drop_region(struct regmap *map, unsigned int min, 2076 unsigned int max) 2077{ 2078 WARN_ONCE(1, "regmap API is disabled"); 2079 return -EINVAL; 2080} 2081 2082static inline void regcache_cache_only(struct regmap *map, bool enable) 2083{ 2084 WARN_ONCE(1, "regmap API is disabled"); 2085} 2086 2087static inline void regcache_cache_bypass(struct regmap *map, bool enable) 2088{ 2089 WARN_ONCE(1, "regmap API is disabled"); 2090} 2091 2092static inline void regcache_mark_dirty(struct regmap *map) 2093{ 2094 WARN_ONCE(1, "regmap API is disabled"); 2095} 2096 2097static inline void regmap_async_complete(struct regmap *map) 2098{ 2099 WARN_ONCE(1, "regmap API is disabled"); 2100} 2101 2102static inline int regmap_register_patch(struct regmap *map, 2103 const struct reg_sequence *regs, 2104 int num_regs) 2105{ 2106 WARN_ONCE(1, "regmap API is disabled"); 2107 return -EINVAL; 2108} 2109 2110static inline int regmap_parse_val(struct regmap *map, const void *buf, 2111 unsigned int *val) 2112{ 2113 WARN_ONCE(1, "regmap API is disabled"); 2114 return -EINVAL; 2115} 2116 2117static inline struct regmap *dev_get_regmap(struct device *dev, 2118 const char *name) 2119{ 2120 return NULL; 2121} 2122 2123static inline struct device *regmap_get_device(struct regmap *map) 2124{ 2125 WARN_ONCE(1, "regmap API is disabled"); 2126 return NULL; 2127} 2128 2129#endif 2130 2131#endif
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