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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 59 * should usually use the maple tree cache unless they specifically 60 * require that there are never any allocations at runtime and can't 61 * provide defaults in which case they should use the flat cache. The 62 * rbtree cache *may* have some performance advantage for very low end 63 * systems that make heavy use of cache syncs but is mainly legacy. 64 */ 65enum regcache_type { 66 REGCACHE_NONE, 67 REGCACHE_RBTREE, 68 REGCACHE_FLAT, 69 REGCACHE_MAPLE, 70}; 71 72/** 73 * struct reg_default - Default value for a register. 74 * 75 * @reg: Register address. 76 * @def: Register default value. 77 * 78 * We use an array of structs rather than a simple array as many modern devices 79 * have very sparse register maps. 80 */ 81struct reg_default { 82 unsigned int reg; 83 unsigned int def; 84}; 85 86/** 87 * struct reg_sequence - An individual write from a sequence of writes. 88 * 89 * @reg: Register address. 90 * @def: Register value. 91 * @delay_us: Delay to be applied after the register write in microseconds 92 * 93 * Register/value pairs for sequences of writes with an optional delay in 94 * microseconds to be applied after each write. 95 */ 96struct reg_sequence { 97 unsigned int reg; 98 unsigned int def; 99 unsigned int delay_us; 100}; 101 102#define REG_SEQ(_reg, _def, _delay_us) { \ 103 .reg = _reg, \ 104 .def = _def, \ 105 .delay_us = _delay_us, \ 106 } 107#define REG_SEQ0(_reg, _def) REG_SEQ(_reg, _def, 0) 108 109/** 110 * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs 111 * 112 * @map: Regmap to read from 113 * @addr: Address to poll 114 * @val: Unsigned integer variable to read the value into 115 * @cond: Break condition (usually involving @val) 116 * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please 117 * read usleep_range() function description for details and 118 * limitations. 119 * @timeout_us: Timeout in us, 0 means never timeout 120 * 121 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 122 * 123 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 124 * error return value in case of a error read. In the two former cases, 125 * the last read value at @addr is stored in @val. Must not be called 126 * from atomic context if sleep_us or timeout_us are used. 127 */ 128#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ 129({ \ 130 int __ret, __tmp; \ 131 __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \ 132 sleep_us, timeout_us, false, (map), (addr), &(val)); \ 133 __ret ?: __tmp; \ 134}) 135 136/** 137 * regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs 138 * 139 * @map: Regmap to read from 140 * @addr: Address to poll 141 * @val: Unsigned integer variable to read the value into 142 * @cond: Break condition (usually involving @val) 143 * @delay_us: Time to udelay between reads in us (0 tight-loops). Please 144 * read udelay() function description for details and 145 * limitations. 146 * @timeout_us: Timeout in us, 0 means never timeout 147 * 148 * This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h. 149 * 150 * Note: In general regmap cannot be used in atomic context. If you want to use 151 * this macro then first setup your regmap for atomic use (flat or no cache 152 * and MMIO regmap). 153 * 154 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_read 155 * error return value in case of a error read. In the two former cases, 156 * the last read value at @addr is stored in @val. 157 */ 158#define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \ 159({ \ 160 u64 __timeout_us = (timeout_us); \ 161 unsigned long __delay_us = (delay_us); \ 162 ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ 163 int __ret; \ 164 for (;;) { \ 165 __ret = regmap_read((map), (addr), &(val)); \ 166 if (__ret) \ 167 break; \ 168 if (cond) \ 169 break; \ 170 if ((__timeout_us) && \ 171 ktime_compare(ktime_get(), __timeout) > 0) { \ 172 __ret = regmap_read((map), (addr), &(val)); \ 173 break; \ 174 } \ 175 if (__delay_us) \ 176 udelay(__delay_us); \ 177 } \ 178 __ret ?: ((cond) ? 0 : -ETIMEDOUT); \ 179}) 180 181/** 182 * regmap_field_read_poll_timeout - Poll until a condition is met or timeout 183 * 184 * @field: Regmap field to read from 185 * @val: Unsigned integer variable to read the value into 186 * @cond: Break condition (usually involving @val) 187 * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please 188 * read usleep_range() function description for details and 189 * limitations. 190 * @timeout_us: Timeout in us, 0 means never timeout 191 * 192 * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. 193 * 194 * Returns: 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read 195 * error return value in case of a error read. In the two former cases, 196 * the last read value at @addr is stored in @val. Must not be called 197 * from atomic context if sleep_us or timeout_us are used. 198 */ 199#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \ 200({ \ 201 int __ret, __tmp; \ 202 __tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \ 203 sleep_us, timeout_us, false, (field), &(val)); \ 204 __ret ?: __tmp; \ 205}) 206 207#ifdef CONFIG_REGMAP 208 209enum regmap_endian { 210 /* Unspecified -> 0 -> Backwards compatible default */ 211 REGMAP_ENDIAN_DEFAULT = 0, 212 REGMAP_ENDIAN_BIG, 213 REGMAP_ENDIAN_LITTLE, 214 REGMAP_ENDIAN_NATIVE, 215}; 216 217/** 218 * struct regmap_range - A register range, used for access related checks 219 * (readable/writeable/volatile/precious checks) 220 * 221 * @range_min: address of first register 222 * @range_max: address of last register 223 */ 224struct regmap_range { 225 unsigned int range_min; 226 unsigned int range_max; 227}; 228 229#define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } 230 231/** 232 * struct regmap_access_table - A table of register ranges for access checks 233 * 234 * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" 235 * @n_yes_ranges: size of the above array 236 * @no_ranges: pointer to an array of regmap ranges used as "no ranges" 237 * @n_no_ranges: size of the above array 238 * 239 * A table of ranges including some yes ranges and some no ranges. 240 * If a register belongs to a no_range, the corresponding check function 241 * will return false. If a register belongs to a yes range, the corresponding 242 * check function will return true. "no_ranges" are searched first. 243 */ 244struct regmap_access_table { 245 const struct regmap_range *yes_ranges; 246 unsigned int n_yes_ranges; 247 const struct regmap_range *no_ranges; 248 unsigned int n_no_ranges; 249}; 250 251typedef void (*regmap_lock)(void *); 252typedef void (*regmap_unlock)(void *); 253 254/** 255 * struct regmap_config - Configuration for the register map of a device. 256 * 257 * @name: Optional name of the regmap. Useful when a device has multiple 258 * register regions. 259 * 260 * @reg_bits: Number of bits in a register address, mandatory. 261 * @reg_stride: The register address stride. Valid register addresses are a 262 * multiple of this value. If set to 0, a value of 1 will be 263 * used. 264 * @reg_shift: The number of bits to shift the register before performing any 265 * operations. Any positive number will be downshifted, and negative 266 * values will be upshifted 267 * @reg_base: Value to be added to every register address before performing any 268 * operation. 269 * @pad_bits: Number of bits of padding between register and value. 270 * @val_bits: Number of bits in a register value, mandatory. 271 * 272 * @writeable_reg: Optional callback returning true if the register 273 * can be written to. If this field is NULL but wr_table 274 * (see below) is not, the check is performed on such table 275 * (a register is writeable if it belongs to one of the ranges 276 * specified by wr_table). 277 * @readable_reg: Optional callback returning true if the register 278 * can be read from. If this field is NULL but rd_table 279 * (see below) is not, the check is performed on such table 280 * (a register is readable if it belongs to one of the ranges 281 * specified by rd_table). 282 * @volatile_reg: Optional callback returning true if the register 283 * value can't be cached. If this field is NULL but 284 * volatile_table (see below) is not, the check is performed on 285 * such table (a register is volatile if it belongs to one of 286 * the ranges specified by volatile_table). 287 * @precious_reg: Optional callback returning true if the register 288 * should not be read outside of a call from the driver 289 * (e.g., a clear on read interrupt status register). If this 290 * field is NULL but precious_table (see below) is not, the 291 * check is performed on such table (a register is precious if 292 * it belongs to one of the ranges specified by precious_table). 293 * @writeable_noinc_reg: Optional callback returning true if the register 294 * supports multiple write operations without incrementing 295 * the register number. If this field is NULL but 296 * wr_noinc_table (see below) is not, the check is 297 * performed on such table (a register is no increment 298 * writeable if it belongs to one of the ranges specified 299 * by wr_noinc_table). 300 * @readable_noinc_reg: Optional callback returning true if the register 301 * supports multiple read operations without incrementing 302 * the register number. If this field is NULL but 303 * rd_noinc_table (see below) is not, the check is 304 * performed on such table (a register is no increment 305 * readable if it belongs to one of the ranges specified 306 * by rd_noinc_table). 307 * @reg_read: Optional callback that if filled will be used to perform 308 * all the reads from the registers. Should only be provided for 309 * devices whose read operation cannot be represented as a simple 310 * read operation on a bus such as SPI, I2C, etc. Most of the 311 * devices do not need this. 312 * @reg_write: Same as above for writing. 313 * @reg_update_bits: Optional callback that if filled will be used to perform 314 * all the update_bits(rmw) operation. Should only be provided 315 * if the function require special handling with lock and reg 316 * handling and the operation cannot be represented as a simple 317 * update_bits operation on a bus such as SPI, I2C, etc. 318 * @read: Optional callback that if filled will be used to perform all the 319 * bulk reads from the registers. Data is returned in the buffer used 320 * to transmit data. 321 * @write: Same as above for writing. 322 * @max_raw_read: Max raw read size that can be used on the device. 323 * @max_raw_write: Max raw write size that can be used on the device. 324 * @can_sleep: Optional, specifies whether regmap operations can sleep. 325 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 326 * to perform locking. This field is ignored if custom lock/unlock 327 * functions are used (see fields lock/unlock of struct regmap_config). 328 * This field is a duplicate of a similar file in 329 * 'struct regmap_bus' and serves exact same purpose. 330 * Use it only for "no-bus" cases. 331 * @io_port: Support IO port accessors. Makes sense only when MMIO vs. IO port 332 * access can be distinguished. 333 * @disable_locking: This regmap is either protected by external means or 334 * is guaranteed not to be accessed from multiple threads. 335 * Don't use any locking mechanisms. 336 * @lock: Optional lock callback (overrides regmap's default lock 337 * function, based on spinlock or mutex). 338 * @unlock: As above for unlocking. 339 * @lock_arg: This field is passed as the only argument of lock/unlock 340 * functions (ignored in case regular lock/unlock functions 341 * are not overridden). 342 * @max_register: Optional, specifies the maximum valid register address. 343 * @max_register_is_0: Optional, specifies that zero value in @max_register 344 * should be taken into account. This is a workaround to 345 * apply handling of @max_register for regmap that contains 346 * only one register. 347 * @wr_table: Optional, points to a struct regmap_access_table specifying 348 * valid ranges for write access. 349 * @rd_table: As above, for read access. 350 * @volatile_table: As above, for volatile registers. 351 * @precious_table: As above, for precious registers. 352 * @wr_noinc_table: As above, for no increment writeable registers. 353 * @rd_noinc_table: As above, for no increment readable registers. 354 * @reg_defaults: Power on reset values for registers (for use with 355 * register cache support). 356 * @num_reg_defaults: Number of elements in reg_defaults. 357 * 358 * @read_flag_mask: Mask to be set in the top bytes of the register when doing 359 * a read. 360 * @write_flag_mask: Mask to be set in the top bytes of the register when doing 361 * a write. If both read_flag_mask and write_flag_mask are 362 * empty and zero_flag_mask is not set the regmap_bus default 363 * masks are used. 364 * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even 365 * if they are both empty. 366 * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers. 367 * This can avoid load on devices which don't require strict 368 * orderings, but drivers should carefully add any explicit 369 * memory barriers when they may require them. 370 * @use_single_read: If set, converts the bulk read operation into a series of 371 * single read operations. This is useful for a device that 372 * does not support bulk read. 373 * @use_single_write: If set, converts the bulk write operation into a series of 374 * single write operations. This is useful for a device that 375 * does not support bulk write. 376 * @can_multi_write: If set, the device supports the multi write mode of bulk 377 * write operations, if clear multi write requests will be 378 * split into individual write operations 379 * 380 * @cache_type: The actual cache type. 381 * @reg_defaults_raw: Power on reset values for registers (for use with 382 * register cache support). 383 * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. 384 * @use_hwlock: Indicate if a hardware spinlock should be used. 385 * @use_raw_spinlock: Indicate if a raw spinlock should be used. 386 * @hwlock_id: Specify the hardware spinlock id. 387 * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE, 388 * HWLOCK_IRQ or 0. 389 * @reg_format_endian: Endianness for formatted register addresses. If this is 390 * DEFAULT, the @reg_format_endian_default value from the 391 * regmap bus is used. 392 * @val_format_endian: Endianness for formatted register values. If this is 393 * DEFAULT, the @reg_format_endian_default value from the 394 * regmap bus is used. 395 * 396 * @ranges: Array of configuration entries for virtual address ranges. 397 * @num_ranges: Number of range configuration entries. 398 */ 399struct regmap_config { 400 const char *name; 401 402 int reg_bits; 403 int reg_stride; 404 int reg_shift; 405 unsigned int reg_base; 406 int pad_bits; 407 int val_bits; 408 409 bool (*writeable_reg)(struct device *dev, unsigned int reg); 410 bool (*readable_reg)(struct device *dev, unsigned int reg); 411 bool (*volatile_reg)(struct device *dev, unsigned int reg); 412 bool (*precious_reg)(struct device *dev, unsigned int reg); 413 bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg); 414 bool (*readable_noinc_reg)(struct device *dev, unsigned int reg); 415 416 int (*reg_read)(void *context, unsigned int reg, unsigned int *val); 417 int (*reg_write)(void *context, unsigned int reg, unsigned int val); 418 int (*reg_update_bits)(void *context, unsigned int reg, 419 unsigned int mask, unsigned int val); 420 /* Bulk read/write */ 421 int (*read)(void *context, const void *reg_buf, size_t reg_size, 422 void *val_buf, size_t val_size); 423 int (*write)(void *context, const void *data, size_t count); 424 size_t max_raw_read; 425 size_t max_raw_write; 426 427 bool can_sleep; 428 429 bool fast_io; 430 bool io_port; 431 432 bool disable_locking; 433 regmap_lock lock; 434 regmap_unlock unlock; 435 void *lock_arg; 436 437 unsigned int max_register; 438 bool max_register_is_0; 439 const struct regmap_access_table *wr_table; 440 const struct regmap_access_table *rd_table; 441 const struct regmap_access_table *volatile_table; 442 const struct regmap_access_table *precious_table; 443 const struct regmap_access_table *wr_noinc_table; 444 const struct regmap_access_table *rd_noinc_table; 445 const struct reg_default *reg_defaults; 446 unsigned int num_reg_defaults; 447 enum regcache_type cache_type; 448 const void *reg_defaults_raw; 449 unsigned int num_reg_defaults_raw; 450 451 unsigned long read_flag_mask; 452 unsigned long write_flag_mask; 453 bool zero_flag_mask; 454 455 bool use_single_read; 456 bool use_single_write; 457 bool use_relaxed_mmio; 458 bool can_multi_write; 459 460 bool use_hwlock; 461 bool use_raw_spinlock; 462 unsigned int hwlock_id; 463 unsigned int hwlock_mode; 464 465 enum regmap_endian reg_format_endian; 466 enum regmap_endian val_format_endian; 467 468 const struct regmap_range_cfg *ranges; 469 unsigned int num_ranges; 470}; 471 472/** 473 * struct regmap_range_cfg - Configuration for indirectly accessed or paged 474 * registers. 475 * 476 * @name: Descriptive name for diagnostics 477 * 478 * @range_min: Address of the lowest register address in virtual range. 479 * @range_max: Address of the highest register in virtual range. 480 * 481 * @selector_reg: Register with selector field. 482 * @selector_mask: Bit mask for selector value. 483 * @selector_shift: Bit shift for selector value. 484 * 485 * @window_start: Address of first (lowest) register in data window. 486 * @window_len: Number of registers in data window. 487 * 488 * Registers, mapped to this virtual range, are accessed in two steps: 489 * 1. page selector register update; 490 * 2. access through data window registers. 491 */ 492struct regmap_range_cfg { 493 const char *name; 494 495 /* Registers of virtual address range */ 496 unsigned int range_min; 497 unsigned int range_max; 498 499 /* Page selector for indirect addressing */ 500 unsigned int selector_reg; 501 unsigned int selector_mask; 502 int selector_shift; 503 504 /* Data window (per each page) */ 505 unsigned int window_start; 506 unsigned int window_len; 507}; 508 509/** 510 * struct regmap_sdw_mbq_cfg - Configuration for Multi-Byte Quantities 511 * 512 * @mbq_size: Callback returning the actual size of the given register. 513 * @deferrable: Callback returning true if the hardware can defer 514 * transactions to the given register. Deferral should 515 * only be used by SDCA parts and typically which controls 516 * are deferrable will be specified in either as a hard 517 * coded list or from the DisCo tables in the platform 518 * firmware. 519 * 520 * @timeout_us: The time in microseconds after which waiting for a deferred 521 * transaction should time out. 522 * @retry_us: The time in microseconds between polls of the function busy 523 * status whilst waiting for an opportunity to retry a deferred 524 * transaction. 525 * 526 * Provides additional configuration required for SoundWire MBQ register maps. 527 */ 528struct regmap_sdw_mbq_cfg { 529 int (*mbq_size)(struct device *dev, unsigned int reg); 530 bool (*deferrable)(struct device *dev, unsigned int reg); 531 unsigned long timeout_us; 532 unsigned long retry_us; 533}; 534 535struct regmap_async; 536 537typedef int (*regmap_hw_write)(void *context, const void *data, 538 size_t count); 539typedef int (*regmap_hw_gather_write)(void *context, 540 const void *reg, size_t reg_len, 541 const void *val, size_t val_len); 542typedef int (*regmap_hw_async_write)(void *context, 543 const void *reg, size_t reg_len, 544 const void *val, size_t val_len, 545 struct regmap_async *async); 546typedef int (*regmap_hw_read)(void *context, 547 const void *reg_buf, size_t reg_size, 548 void *val_buf, size_t val_size); 549typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, 550 unsigned int *val); 551typedef int (*regmap_hw_reg_noinc_read)(void *context, unsigned int reg, 552 void *val, size_t val_count); 553typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, 554 unsigned int val); 555typedef int (*regmap_hw_reg_noinc_write)(void *context, unsigned int reg, 556 const void *val, size_t val_count); 557typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, 558 unsigned int mask, unsigned int val); 559typedef struct regmap_async *(*regmap_hw_async_alloc)(void); 560typedef void (*regmap_hw_free_context)(void *context); 561 562/** 563 * struct regmap_bus - Description of a hardware bus for the register map 564 * infrastructure. 565 * 566 * @fast_io: Register IO is fast. Use a spinlock instead of a mutex 567 * to perform locking. This field is ignored if custom lock/unlock 568 * functions are used (see fields lock/unlock of 569 * struct regmap_config). 570 * @free_on_exit: kfree this on exit of regmap 571 * @write: Write operation. 572 * @gather_write: Write operation with split register/value, return -ENOTSUPP 573 * if not implemented on a given device. 574 * @async_write: Write operation which completes asynchronously, optional and 575 * must serialise with respect to non-async I/O. 576 * @reg_write: Write a single register value to the given register address. This 577 * write operation has to complete when returning from the function. 578 * @reg_write_noinc: Write multiple register value to the same register. This 579 * write operation has to complete when returning from the function. 580 * @reg_update_bits: Update bits operation to be used against volatile 581 * registers, intended for devices supporting some mechanism 582 * for setting clearing bits without having to 583 * read/modify/write. 584 * @read: Read operation. Data is returned in the buffer used to transmit 585 * data. 586 * @reg_read: Read a single register value from a given register address. 587 * @free_context: Free context. 588 * @async_alloc: Allocate a regmap_async() structure. 589 * @read_flag_mask: Mask to be set in the top byte of the register when doing 590 * a read. 591 * @reg_format_endian_default: Default endianness for formatted register 592 * addresses. Used when the regmap_config specifies DEFAULT. If this is 593 * DEFAULT, BIG is assumed. 594 * @val_format_endian_default: Default endianness for formatted register 595 * values. Used when the regmap_config specifies DEFAULT. If this is 596 * DEFAULT, BIG is assumed. 597 * @max_raw_read: Max raw read size that can be used on the bus. 598 * @max_raw_write: Max raw write size that can be used on the bus. 599 */ 600struct regmap_bus { 601 bool fast_io; 602 bool free_on_exit; 603 regmap_hw_write write; 604 regmap_hw_gather_write gather_write; 605 regmap_hw_async_write async_write; 606 regmap_hw_reg_write reg_write; 607 regmap_hw_reg_noinc_write reg_noinc_write; 608 regmap_hw_reg_update_bits reg_update_bits; 609 regmap_hw_read read; 610 regmap_hw_reg_read reg_read; 611 regmap_hw_reg_noinc_read reg_noinc_read; 612 regmap_hw_free_context free_context; 613 regmap_hw_async_alloc async_alloc; 614 u8 read_flag_mask; 615 enum regmap_endian reg_format_endian_default; 616 enum regmap_endian val_format_endian_default; 617 size_t max_raw_read; 618 size_t max_raw_write; 619}; 620 621/* 622 * __regmap_init functions. 623 * 624 * These functions take a lock key and name parameter, and should not be called 625 * directly. Instead, use the regmap_init macros that generate a key and name 626 * for each call. 627 */ 628struct regmap *__regmap_init(struct device *dev, 629 const struct regmap_bus *bus, 630 void *bus_context, 631 const struct regmap_config *config, 632 struct lock_class_key *lock_key, 633 const char *lock_name); 634struct regmap *__regmap_init_i2c(struct i2c_client *i2c, 635 const struct regmap_config *config, 636 struct lock_class_key *lock_key, 637 const char *lock_name); 638struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev, 639 const struct regmap_config *config, 640 struct lock_class_key *lock_key, 641 const char *lock_name); 642struct regmap *__regmap_init_sccb(struct i2c_client *i2c, 643 const struct regmap_config *config, 644 struct lock_class_key *lock_key, 645 const char *lock_name); 646struct regmap *__regmap_init_slimbus(struct slim_device *slimbus, 647 const struct regmap_config *config, 648 struct lock_class_key *lock_key, 649 const char *lock_name); 650struct regmap *__regmap_init_spi(struct spi_device *dev, 651 const struct regmap_config *config, 652 struct lock_class_key *lock_key, 653 const char *lock_name); 654struct regmap *__regmap_init_spmi_base(struct spmi_device *dev, 655 const struct regmap_config *config, 656 struct lock_class_key *lock_key, 657 const char *lock_name); 658struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev, 659 const struct regmap_config *config, 660 struct lock_class_key *lock_key, 661 const char *lock_name); 662struct regmap *__regmap_init_w1(struct device *w1_dev, 663 const struct regmap_config *config, 664 struct lock_class_key *lock_key, 665 const char *lock_name); 666struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, 667 void __iomem *regs, 668 const struct regmap_config *config, 669 struct lock_class_key *lock_key, 670 const char *lock_name); 671struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, 672 const struct regmap_config *config, 673 struct lock_class_key *lock_key, 674 const char *lock_name); 675struct regmap *__regmap_init_sdw(struct sdw_slave *sdw, 676 const struct regmap_config *config, 677 struct lock_class_key *lock_key, 678 const char *lock_name); 679struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw, 680 const struct regmap_config *config, 681 const struct regmap_sdw_mbq_cfg *mbq_config, 682 struct lock_class_key *lock_key, 683 const char *lock_name); 684struct regmap *__regmap_init_spi_avmm(struct spi_device *spi, 685 const struct regmap_config *config, 686 struct lock_class_key *lock_key, 687 const char *lock_name); 688struct regmap *__regmap_init_fsi(struct fsi_device *fsi_dev, 689 const struct regmap_config *config, 690 struct lock_class_key *lock_key, 691 const char *lock_name); 692 693struct regmap *__devm_regmap_init(struct device *dev, 694 const struct regmap_bus *bus, 695 void *bus_context, 696 const struct regmap_config *config, 697 struct lock_class_key *lock_key, 698 const char *lock_name); 699struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, 700 const struct regmap_config *config, 701 struct lock_class_key *lock_key, 702 const char *lock_name); 703struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev, 704 const struct regmap_config *config, 705 struct lock_class_key *lock_key, 706 const char *lock_name); 707struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c, 708 const struct regmap_config *config, 709 struct lock_class_key *lock_key, 710 const char *lock_name); 711struct regmap *__devm_regmap_init_spi(struct spi_device *dev, 712 const struct regmap_config *config, 713 struct lock_class_key *lock_key, 714 const char *lock_name); 715struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev, 716 const struct regmap_config *config, 717 struct lock_class_key *lock_key, 718 const char *lock_name); 719struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev, 720 const struct regmap_config *config, 721 struct lock_class_key *lock_key, 722 const char *lock_name); 723struct regmap *__devm_regmap_init_w1(struct device *w1_dev, 724 const struct regmap_config *config, 725 struct lock_class_key *lock_key, 726 const char *lock_name); 727struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, 728 const char *clk_id, 729 void __iomem *regs, 730 const struct regmap_config *config, 731 struct lock_class_key *lock_key, 732 const char *lock_name); 733struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, 734 const struct regmap_config *config, 735 struct lock_class_key *lock_key, 736 const char *lock_name); 737struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw, 738 const struct regmap_config *config, 739 struct lock_class_key *lock_key, 740 const char *lock_name); 741struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw, 742 const struct regmap_config *config, 743 const struct regmap_sdw_mbq_cfg *mbq_config, 744 struct lock_class_key *lock_key, 745 const char *lock_name); 746struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, 747 const struct regmap_config *config, 748 struct lock_class_key *lock_key, 749 const char *lock_name); 750struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, 751 const struct regmap_config *config, 752 struct lock_class_key *lock_key, 753 const char *lock_name); 754struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi, 755 const struct regmap_config *config, 756 struct lock_class_key *lock_key, 757 const char *lock_name); 758struct regmap *__devm_regmap_init_fsi(struct fsi_device *fsi_dev, 759 const struct regmap_config *config, 760 struct lock_class_key *lock_key, 761 const char *lock_name); 762 763/* 764 * Wrapper for regmap_init macros to include a unique lockdep key and name 765 * for each call. No-op if CONFIG_LOCKDEP is not set. 766 * 767 * @fn: Real function to call (in the form __[*_]regmap_init[_*]) 768 * @name: Config variable name (#config in the calling macro) 769 **/ 770#ifdef CONFIG_LOCKDEP 771#define __regmap_lockdep_wrapper(fn, name, ...) \ 772( \ 773 ({ \ 774 static struct lock_class_key _key; \ 775 fn(__VA_ARGS__, &_key, \ 776 KBUILD_BASENAME ":" \ 777 __stringify(__LINE__) ":" \ 778 "(" name ")->lock"); \ 779 }) \ 780) 781#else 782#define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL) 783#endif 784 785/** 786 * regmap_init() - Initialise register map 787 * 788 * @dev: Device that will be interacted with 789 * @bus: Bus-specific callbacks to use with device 790 * @bus_context: Data passed to bus-specific callbacks 791 * @config: Configuration for register map 792 * 793 * The return value will be an ERR_PTR() on error or a valid pointer to 794 * a struct regmap. This function should generally not be called 795 * directly, it should be called by bus-specific init functions. 796 */ 797#define regmap_init(dev, bus, bus_context, config) \ 798 __regmap_lockdep_wrapper(__regmap_init, #config, \ 799 dev, bus, bus_context, config) 800int regmap_attach_dev(struct device *dev, struct regmap *map, 801 const struct regmap_config *config); 802 803/** 804 * regmap_init_i2c() - Initialise register map 805 * 806 * @i2c: Device that will be interacted with 807 * @config: Configuration for register map 808 * 809 * The return value will be an ERR_PTR() on error or a valid pointer to 810 * a struct regmap. 811 */ 812#define regmap_init_i2c(i2c, config) \ 813 __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ 814 i2c, config) 815 816/** 817 * regmap_init_mdio() - Initialise register map 818 * 819 * @mdio_dev: Device that will be interacted with 820 * @config: Configuration for register map 821 * 822 * The return value will be an ERR_PTR() on error or a valid pointer to 823 * a struct regmap. 824 */ 825#define regmap_init_mdio(mdio_dev, config) \ 826 __regmap_lockdep_wrapper(__regmap_init_mdio, #config, \ 827 mdio_dev, config) 828 829/** 830 * regmap_init_sccb() - Initialise register map 831 * 832 * @i2c: Device that will be interacted with 833 * @config: Configuration for register map 834 * 835 * The return value will be an ERR_PTR() on error or a valid pointer to 836 * a struct regmap. 837 */ 838#define regmap_init_sccb(i2c, config) \ 839 __regmap_lockdep_wrapper(__regmap_init_sccb, #config, \ 840 i2c, config) 841 842/** 843 * regmap_init_slimbus() - Initialise register map 844 * 845 * @slimbus: Device that will be interacted with 846 * @config: Configuration for register map 847 * 848 * The return value will be an ERR_PTR() on error or a valid pointer to 849 * a struct regmap. 850 */ 851#define regmap_init_slimbus(slimbus, config) \ 852 __regmap_lockdep_wrapper(__regmap_init_slimbus, #config, \ 853 slimbus, config) 854 855/** 856 * regmap_init_spi() - Initialise register map 857 * 858 * @dev: Device that will be interacted with 859 * @config: Configuration for register map 860 * 861 * The return value will be an ERR_PTR() on error or a valid pointer to 862 * a struct regmap. 863 */ 864#define regmap_init_spi(dev, config) \ 865 __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ 866 dev, config) 867 868/** 869 * regmap_init_spmi_base() - Create regmap for the Base register space 870 * 871 * @dev: SPMI device that will be interacted with 872 * @config: Configuration for register map 873 * 874 * The return value will be an ERR_PTR() on error or a valid pointer to 875 * a struct regmap. 876 */ 877#define regmap_init_spmi_base(dev, config) \ 878 __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ 879 dev, config) 880 881/** 882 * regmap_init_spmi_ext() - Create regmap for Ext register space 883 * 884 * @dev: Device that will be interacted with 885 * @config: Configuration for register map 886 * 887 * The return value will be an ERR_PTR() on error or a valid pointer to 888 * a struct regmap. 889 */ 890#define regmap_init_spmi_ext(dev, config) \ 891 __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ 892 dev, config) 893 894/** 895 * regmap_init_w1() - Initialise register map 896 * 897 * @w1_dev: Device that will be interacted with 898 * @config: Configuration for register map 899 * 900 * The return value will be an ERR_PTR() on error or a valid pointer to 901 * a struct regmap. 902 */ 903#define regmap_init_w1(w1_dev, config) \ 904 __regmap_lockdep_wrapper(__regmap_init_w1, #config, \ 905 w1_dev, config) 906 907/** 908 * regmap_init_mmio_clk() - Initialise register map with register clock 909 * 910 * @dev: Device that will be interacted with 911 * @clk_id: register clock consumer ID 912 * @regs: Pointer to memory-mapped IO region 913 * @config: Configuration for register map 914 * 915 * The return value will be an ERR_PTR() on error or a valid pointer to 916 * a struct regmap. 917 */ 918#define regmap_init_mmio_clk(dev, clk_id, regs, config) \ 919 __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ 920 dev, clk_id, regs, config) 921 922/** 923 * regmap_init_mmio() - Initialise register map 924 * 925 * @dev: Device that will be interacted with 926 * @regs: Pointer to memory-mapped IO region 927 * @config: Configuration for register map 928 * 929 * The return value will be an ERR_PTR() on error or a valid pointer to 930 * a struct regmap. 931 */ 932#define regmap_init_mmio(dev, regs, config) \ 933 regmap_init_mmio_clk(dev, NULL, regs, config) 934 935/** 936 * regmap_init_ac97() - Initialise AC'97 register map 937 * 938 * @ac97: Device that will be interacted with 939 * @config: Configuration for register map 940 * 941 * The return value will be an ERR_PTR() on error or a valid pointer to 942 * a struct regmap. 943 */ 944#define regmap_init_ac97(ac97, config) \ 945 __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \ 946 ac97, config) 947bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); 948 949/** 950 * regmap_init_sdw() - Initialise register map 951 * 952 * @sdw: Device that will be interacted with 953 * @config: Configuration for register map 954 * 955 * The return value will be an ERR_PTR() on error or a valid pointer to 956 * a struct regmap. 957 */ 958#define regmap_init_sdw(sdw, config) \ 959 __regmap_lockdep_wrapper(__regmap_init_sdw, #config, \ 960 sdw, config) 961 962/** 963 * regmap_init_sdw_mbq() - Initialise register map 964 * 965 * @sdw: Device that will be interacted with 966 * @config: Configuration for register map 967 * 968 * The return value will be an ERR_PTR() on error or a valid pointer to 969 * a struct regmap. 970 */ 971#define regmap_init_sdw_mbq(sdw, config) \ 972 __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ 973 sdw, config, NULL) 974 975/** 976 * regmap_init_sdw_mbq_cfg() - Initialise MBQ SDW register map with config 977 * 978 * @sdw: Device that will be interacted with 979 * @config: Configuration for register map 980 * @mbq_config: Properties for the MBQ registers 981 * 982 * The return value will be an ERR_PTR() on error or a valid pointer 983 * to a struct regmap. The regmap will be automatically freed by the 984 * device management code. 985 */ 986#define regmap_init_sdw_mbq_cfg(sdw, config, mbq_config) \ 987 __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ 988 sdw, config, mbq_config) 989 990/** 991 * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 992 * to AVMM Bus Bridge 993 * 994 * @spi: Device that will be interacted with 995 * @config: Configuration for register map 996 * 997 * The return value will be an ERR_PTR() on error or a valid pointer 998 * to a struct regmap. 999 */ 1000#define regmap_init_spi_avmm(spi, config) \ 1001 __regmap_lockdep_wrapper(__regmap_init_spi_avmm, #config, \ 1002 spi, config) 1003 1004/** 1005 * regmap_init_fsi() - Initialise register map 1006 * 1007 * @fsi_dev: Device that will be interacted with 1008 * @config: Configuration for register map 1009 * 1010 * The return value will be an ERR_PTR() on error or a valid pointer to 1011 * a struct regmap. 1012 */ 1013#define regmap_init_fsi(fsi_dev, config) \ 1014 __regmap_lockdep_wrapper(__regmap_init_fsi, #config, fsi_dev, \ 1015 config) 1016 1017/** 1018 * devm_regmap_init() - Initialise managed register map 1019 * 1020 * @dev: Device that will be interacted with 1021 * @bus: Bus-specific callbacks to use with device 1022 * @bus_context: Data passed to bus-specific callbacks 1023 * @config: Configuration for register map 1024 * 1025 * The return value will be an ERR_PTR() on error or a valid pointer 1026 * to a struct regmap. This function should generally not be called 1027 * directly, it should be called by bus-specific init functions. The 1028 * map will be automatically freed by the device management code. 1029 */ 1030#define devm_regmap_init(dev, bus, bus_context, config) \ 1031 __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ 1032 dev, bus, bus_context, config) 1033 1034/** 1035 * devm_regmap_init_i2c() - Initialise managed register map 1036 * 1037 * @i2c: Device that will be interacted with 1038 * @config: Configuration for register map 1039 * 1040 * The return value will be an ERR_PTR() on error or a valid pointer 1041 * to a struct regmap. The regmap will be automatically freed by the 1042 * device management code. 1043 */ 1044#define devm_regmap_init_i2c(i2c, config) \ 1045 __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ 1046 i2c, config) 1047 1048/** 1049 * devm_regmap_init_mdio() - Initialise managed register map 1050 * 1051 * @mdio_dev: Device that will be interacted with 1052 * @config: Configuration for register map 1053 * 1054 * The return value will be an ERR_PTR() on error or a valid pointer 1055 * to a struct regmap. The regmap will be automatically freed by the 1056 * device management code. 1057 */ 1058#define devm_regmap_init_mdio(mdio_dev, config) \ 1059 __regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config, \ 1060 mdio_dev, config) 1061 1062/** 1063 * devm_regmap_init_sccb() - Initialise managed register map 1064 * 1065 * @i2c: Device that will be interacted with 1066 * @config: Configuration for register map 1067 * 1068 * The return value will be an ERR_PTR() on error or a valid pointer 1069 * to a struct regmap. The regmap will be automatically freed by the 1070 * device management code. 1071 */ 1072#define devm_regmap_init_sccb(i2c, config) \ 1073 __regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config, \ 1074 i2c, config) 1075 1076/** 1077 * devm_regmap_init_spi() - Initialise register map 1078 * 1079 * @dev: Device that will be interacted with 1080 * @config: Configuration for register map 1081 * 1082 * The return value will be an ERR_PTR() on error or a valid pointer 1083 * to a struct regmap. The map will be automatically freed by the 1084 * device management code. 1085 */ 1086#define devm_regmap_init_spi(dev, config) \ 1087 __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ 1088 dev, config) 1089 1090/** 1091 * devm_regmap_init_spmi_base() - Create managed regmap for Base register space 1092 * 1093 * @dev: SPMI device that will be interacted with 1094 * @config: Configuration for register map 1095 * 1096 * The return value will be an ERR_PTR() on error or a valid pointer 1097 * to a struct regmap. The regmap will be automatically freed by the 1098 * device management code. 1099 */ 1100#define devm_regmap_init_spmi_base(dev, config) \ 1101 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ 1102 dev, config) 1103 1104/** 1105 * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space 1106 * 1107 * @dev: SPMI device that will be interacted with 1108 * @config: Configuration for register map 1109 * 1110 * The return value will be an ERR_PTR() on error or a valid pointer 1111 * to a struct regmap. The regmap will be automatically freed by the 1112 * device management code. 1113 */ 1114#define devm_regmap_init_spmi_ext(dev, config) \ 1115 __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ 1116 dev, config) 1117 1118/** 1119 * devm_regmap_init_w1() - Initialise managed register map 1120 * 1121 * @w1_dev: Device that will be interacted with 1122 * @config: Configuration for register map 1123 * 1124 * The return value will be an ERR_PTR() on error or a valid pointer 1125 * to a struct regmap. The regmap will be automatically freed by the 1126 * device management code. 1127 */ 1128#define devm_regmap_init_w1(w1_dev, config) \ 1129 __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config, \ 1130 w1_dev, config) 1131/** 1132 * devm_regmap_init_mmio_clk() - Initialise managed register map with clock 1133 * 1134 * @dev: Device that will be interacted with 1135 * @clk_id: register clock consumer ID 1136 * @regs: Pointer to memory-mapped IO region 1137 * @config: Configuration for register map 1138 * 1139 * The return value will be an ERR_PTR() on error or a valid pointer 1140 * to a struct regmap. The regmap will be automatically freed by the 1141 * device management code. 1142 */ 1143#define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \ 1144 __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \ 1145 dev, clk_id, regs, config) 1146 1147/** 1148 * devm_regmap_init_mmio() - Initialise managed register map 1149 * 1150 * @dev: Device that will be interacted with 1151 * @regs: Pointer to memory-mapped IO region 1152 * @config: Configuration for register map 1153 * 1154 * The return value will be an ERR_PTR() on error or a valid pointer 1155 * to a struct regmap. The regmap will be automatically freed by the 1156 * device management code. 1157 */ 1158#define devm_regmap_init_mmio(dev, regs, config) \ 1159 devm_regmap_init_mmio_clk(dev, NULL, regs, config) 1160 1161/** 1162 * devm_regmap_init_ac97() - Initialise AC'97 register map 1163 * 1164 * @ac97: Device that will be interacted with 1165 * @config: Configuration for register map 1166 * 1167 * The return value will be an ERR_PTR() on error or a valid pointer 1168 * to a struct regmap. The regmap will be automatically freed by the 1169 * device management code. 1170 */ 1171#define devm_regmap_init_ac97(ac97, config) \ 1172 __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ 1173 ac97, config) 1174 1175/** 1176 * devm_regmap_init_sdw() - Initialise managed register map 1177 * 1178 * @sdw: Device that will be interacted with 1179 * @config: Configuration for register map 1180 * 1181 * The return value will be an ERR_PTR() on error or a valid pointer 1182 * to a struct regmap. The regmap will be automatically freed by the 1183 * device management code. 1184 */ 1185#define devm_regmap_init_sdw(sdw, config) \ 1186 __regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \ 1187 sdw, config) 1188 1189/** 1190 * devm_regmap_init_sdw_mbq() - Initialise managed register map 1191 * 1192 * @sdw: Device that will be interacted with 1193 * @config: Configuration for register map 1194 * 1195 * The return value will be an ERR_PTR() on error or a valid pointer 1196 * to a struct regmap. The regmap will be automatically freed by the 1197 * device management code. 1198 */ 1199#define devm_regmap_init_sdw_mbq(sdw, config) \ 1200 __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config, \ 1201 sdw, config, NULL) 1202 1203/** 1204 * devm_regmap_init_sdw_mbq_cfg() - Initialise managed MBQ SDW register map with config 1205 * 1206 * @sdw: Device that will be interacted with 1207 * @config: Configuration for register map 1208 * @mbq_config: Properties for the MBQ registers 1209 * 1210 * The return value will be an ERR_PTR() on error or a valid pointer 1211 * to a struct regmap. The regmap will be automatically freed by the 1212 * device management code. 1213 */ 1214#define devm_regmap_init_sdw_mbq_cfg(sdw, config, mbq_config) \ 1215 __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, \ 1216 #config, sdw, config, mbq_config) 1217 1218/** 1219 * devm_regmap_init_slimbus() - Initialise managed register map 1220 * 1221 * @slimbus: Device that will be interacted with 1222 * @config: Configuration for register map 1223 * 1224 * The return value will be an ERR_PTR() on error or a valid pointer 1225 * to a struct regmap. The regmap will be automatically freed by the 1226 * device management code. 1227 */ 1228#define devm_regmap_init_slimbus(slimbus, config) \ 1229 __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \ 1230 slimbus, config) 1231 1232/** 1233 * devm_regmap_init_i3c() - Initialise managed register map 1234 * 1235 * @i3c: Device that will be interacted with 1236 * @config: Configuration for register map 1237 * 1238 * The return value will be an ERR_PTR() on error or a valid pointer 1239 * to a struct regmap. The regmap will be automatically freed by the 1240 * device management code. 1241 */ 1242#define devm_regmap_init_i3c(i3c, config) \ 1243 __regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config, \ 1244 i3c, config) 1245 1246/** 1247 * devm_regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave 1248 * to AVMM Bus Bridge 1249 * 1250 * @spi: Device that will be interacted with 1251 * @config: Configuration for register map 1252 * 1253 * The return value will be an ERR_PTR() on error or a valid pointer 1254 * to a struct regmap. The map will be automatically freed by the 1255 * device management code. 1256 */ 1257#define devm_regmap_init_spi_avmm(spi, config) \ 1258 __regmap_lockdep_wrapper(__devm_regmap_init_spi_avmm, #config, \ 1259 spi, config) 1260 1261/** 1262 * devm_regmap_init_fsi() - Initialise managed register map 1263 * 1264 * @fsi_dev: Device that will be interacted with 1265 * @config: Configuration for register map 1266 * 1267 * The return value will be an ERR_PTR() on error or a valid pointer 1268 * to a struct regmap. The regmap will be automatically freed by the 1269 * device management code. 1270 */ 1271#define devm_regmap_init_fsi(fsi_dev, config) \ 1272 __regmap_lockdep_wrapper(__devm_regmap_init_fsi, #config, \ 1273 fsi_dev, config) 1274 1275int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); 1276void regmap_mmio_detach_clk(struct regmap *map); 1277void regmap_exit(struct regmap *map); 1278int regmap_reinit_cache(struct regmap *map, 1279 const struct regmap_config *config); 1280struct regmap *dev_get_regmap(struct device *dev, const char *name); 1281struct device *regmap_get_device(struct regmap *map); 1282int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); 1283int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); 1284int regmap_raw_write(struct regmap *map, unsigned int reg, 1285 const void *val, size_t val_len); 1286int regmap_noinc_write(struct regmap *map, unsigned int reg, 1287 const void *val, size_t val_len); 1288int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, 1289 size_t val_count); 1290int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, 1291 int num_regs); 1292int regmap_multi_reg_write_bypassed(struct regmap *map, 1293 const struct reg_sequence *regs, 1294 int num_regs); 1295int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1296 const void *val, size_t val_len); 1297int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); 1298int regmap_read_bypassed(struct regmap *map, unsigned int reg, unsigned int *val); 1299int regmap_raw_read(struct regmap *map, unsigned int reg, 1300 void *val, size_t val_len); 1301int regmap_noinc_read(struct regmap *map, unsigned int reg, 1302 void *val, size_t val_len); 1303int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, 1304 size_t val_count); 1305int regmap_multi_reg_read(struct regmap *map, const unsigned int *reg, void *val, 1306 size_t val_count); 1307int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1308 unsigned int mask, unsigned int val, 1309 bool *change, bool async, bool force); 1310 1311static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1312 unsigned int mask, unsigned int val) 1313{ 1314 return regmap_update_bits_base(map, reg, mask, val, NULL, false, false); 1315} 1316 1317static inline int regmap_update_bits_async(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, true, false); 1321} 1322 1323static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1324 unsigned int mask, unsigned int val, 1325 bool *change) 1326{ 1327 return regmap_update_bits_base(map, reg, mask, val, 1328 change, false, false); 1329} 1330 1331static inline int 1332regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1333 unsigned int mask, unsigned int val, 1334 bool *change) 1335{ 1336 return regmap_update_bits_base(map, reg, mask, val, 1337 change, true, false); 1338} 1339 1340static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1341 unsigned int mask, unsigned int val) 1342{ 1343 return regmap_update_bits_base(map, reg, mask, val, NULL, false, true); 1344} 1345 1346int regmap_get_val_bytes(struct regmap *map); 1347int regmap_get_max_register(struct regmap *map); 1348int regmap_get_reg_stride(struct regmap *map); 1349bool regmap_might_sleep(struct regmap *map); 1350int regmap_async_complete(struct regmap *map); 1351bool regmap_can_raw_write(struct regmap *map); 1352size_t regmap_get_raw_read_max(struct regmap *map); 1353size_t regmap_get_raw_write_max(struct regmap *map); 1354 1355int regcache_sync(struct regmap *map); 1356int regcache_sync_region(struct regmap *map, unsigned int min, 1357 unsigned int max); 1358int regcache_drop_region(struct regmap *map, unsigned int min, 1359 unsigned int max); 1360void regcache_cache_only(struct regmap *map, bool enable); 1361void regcache_cache_bypass(struct regmap *map, bool enable); 1362void regcache_mark_dirty(struct regmap *map); 1363bool regcache_reg_cached(struct regmap *map, unsigned int reg); 1364 1365bool regmap_check_range_table(struct regmap *map, unsigned int reg, 1366 const struct regmap_access_table *table); 1367 1368int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs, 1369 int num_regs); 1370int regmap_parse_val(struct regmap *map, const void *buf, 1371 unsigned int *val); 1372 1373static inline bool regmap_reg_in_range(unsigned int reg, 1374 const struct regmap_range *range) 1375{ 1376 return reg >= range->range_min && reg <= range->range_max; 1377} 1378 1379bool regmap_reg_in_ranges(unsigned int reg, 1380 const struct regmap_range *ranges, 1381 unsigned int nranges); 1382 1383static inline int regmap_set_bits(struct regmap *map, 1384 unsigned int reg, unsigned int bits) 1385{ 1386 return regmap_update_bits_base(map, reg, bits, bits, 1387 NULL, false, false); 1388} 1389 1390static inline int regmap_clear_bits(struct regmap *map, 1391 unsigned int reg, unsigned int bits) 1392{ 1393 return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false); 1394} 1395 1396static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, 1397 unsigned int bits, bool value) 1398{ 1399 if (value) 1400 return regmap_set_bits(map, reg, bits); 1401 else 1402 return regmap_clear_bits(map, reg, bits); 1403} 1404 1405int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits); 1406 1407/** 1408 * struct reg_field - Description of an register field 1409 * 1410 * @reg: Offset of the register within the regmap bank 1411 * @lsb: lsb of the register field. 1412 * @msb: msb of the register field. 1413 * @id_size: port size if it has some ports 1414 * @id_offset: address offset for each ports 1415 */ 1416struct reg_field { 1417 unsigned int reg; 1418 unsigned int lsb; 1419 unsigned int msb; 1420 unsigned int id_size; 1421 unsigned int id_offset; 1422}; 1423 1424#define REG_FIELD(_reg, _lsb, _msb) { \ 1425 .reg = _reg, \ 1426 .lsb = _lsb, \ 1427 .msb = _msb, \ 1428 } 1429 1430#define REG_FIELD_ID(_reg, _lsb, _msb, _size, _offset) { \ 1431 .reg = _reg, \ 1432 .lsb = _lsb, \ 1433 .msb = _msb, \ 1434 .id_size = _size, \ 1435 .id_offset = _offset, \ 1436 } 1437 1438struct regmap_field *regmap_field_alloc(struct regmap *regmap, 1439 struct reg_field reg_field); 1440void regmap_field_free(struct regmap_field *field); 1441 1442struct regmap_field *devm_regmap_field_alloc(struct device *dev, 1443 struct regmap *regmap, struct reg_field reg_field); 1444void devm_regmap_field_free(struct device *dev, struct regmap_field *field); 1445 1446int regmap_field_bulk_alloc(struct regmap *regmap, 1447 struct regmap_field **rm_field, 1448 const struct reg_field *reg_field, 1449 int num_fields); 1450void regmap_field_bulk_free(struct regmap_field *field); 1451int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap, 1452 struct regmap_field **field, 1453 const struct reg_field *reg_field, 1454 int num_fields); 1455void devm_regmap_field_bulk_free(struct device *dev, 1456 struct regmap_field *field); 1457 1458int regmap_field_read(struct regmap_field *field, unsigned int *val); 1459int regmap_field_update_bits_base(struct regmap_field *field, 1460 unsigned int mask, unsigned int val, 1461 bool *change, bool async, bool force); 1462int regmap_fields_read(struct regmap_field *field, unsigned int id, 1463 unsigned int *val); 1464int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, 1465 unsigned int mask, unsigned int val, 1466 bool *change, bool async, bool force); 1467 1468static inline int regmap_field_write(struct regmap_field *field, 1469 unsigned int val) 1470{ 1471 return regmap_field_update_bits_base(field, ~0, val, 1472 NULL, false, false); 1473} 1474 1475static inline int regmap_field_force_write(struct regmap_field *field, 1476 unsigned int val) 1477{ 1478 return regmap_field_update_bits_base(field, ~0, val, NULL, false, true); 1479} 1480 1481static inline int regmap_field_update_bits(struct regmap_field *field, 1482 unsigned int mask, unsigned int val) 1483{ 1484 return regmap_field_update_bits_base(field, mask, val, 1485 NULL, false, false); 1486} 1487 1488static inline int regmap_field_set_bits(struct regmap_field *field, 1489 unsigned int bits) 1490{ 1491 return regmap_field_update_bits_base(field, bits, bits, NULL, false, 1492 false); 1493} 1494 1495static inline int regmap_field_clear_bits(struct regmap_field *field, 1496 unsigned int bits) 1497{ 1498 return regmap_field_update_bits_base(field, bits, 0, NULL, false, 1499 false); 1500} 1501 1502int regmap_field_test_bits(struct regmap_field *field, unsigned int bits); 1503 1504static inline int 1505regmap_field_force_update_bits(struct regmap_field *field, 1506 unsigned int mask, unsigned int val) 1507{ 1508 return regmap_field_update_bits_base(field, mask, val, 1509 NULL, false, true); 1510} 1511 1512static inline int regmap_fields_write(struct regmap_field *field, 1513 unsigned int id, unsigned int val) 1514{ 1515 return regmap_fields_update_bits_base(field, id, ~0, val, 1516 NULL, false, false); 1517} 1518 1519static inline int regmap_fields_force_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, true); 1524} 1525 1526static inline int 1527regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 1528 unsigned int mask, unsigned int val) 1529{ 1530 return regmap_fields_update_bits_base(field, id, mask, val, 1531 NULL, false, false); 1532} 1533 1534static inline int 1535regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 1536 unsigned int mask, unsigned int val) 1537{ 1538 return regmap_fields_update_bits_base(field, id, mask, val, 1539 NULL, false, true); 1540} 1541 1542/** 1543 * struct regmap_irq_type - IRQ type definitions. 1544 * 1545 * @type_reg_offset: Offset register for the irq type setting. 1546 * @type_rising_val: Register value to configure RISING type irq. 1547 * @type_falling_val: Register value to configure FALLING type irq. 1548 * @type_level_low_val: Register value to configure LEVEL_LOW type irq. 1549 * @type_level_high_val: Register value to configure LEVEL_HIGH type irq. 1550 * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types. 1551 */ 1552struct regmap_irq_type { 1553 unsigned int type_reg_offset; 1554 unsigned int type_reg_mask; 1555 unsigned int type_rising_val; 1556 unsigned int type_falling_val; 1557 unsigned int type_level_low_val; 1558 unsigned int type_level_high_val; 1559 unsigned int types_supported; 1560}; 1561 1562/** 1563 * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip. 1564 * 1565 * @reg_offset: Offset of the status/mask register within the bank 1566 * @mask: Mask used to flag/control the register. 1567 * @type: IRQ trigger type setting details if supported. 1568 */ 1569struct regmap_irq { 1570 unsigned int reg_offset; 1571 unsigned int mask; 1572 struct regmap_irq_type type; 1573}; 1574 1575#define REGMAP_IRQ_REG(_irq, _off, _mask) \ 1576 [_irq] = { .reg_offset = (_off), .mask = (_mask) } 1577 1578#define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \ 1579 [_id] = { \ 1580 .mask = BIT((_id) % (_reg_bits)), \ 1581 .reg_offset = (_id) / (_reg_bits), \ 1582 } 1583 1584#define REGMAP_IRQ_MAIN_REG_OFFSET(arr) \ 1585 { .num_regs = ARRAY_SIZE((arr)), .offset = &(arr)[0] } 1586 1587struct regmap_irq_sub_irq_map { 1588 unsigned int num_regs; 1589 unsigned int *offset; 1590}; 1591 1592struct regmap_irq_chip_data; 1593 1594/** 1595 * struct regmap_irq_chip - Description of a generic regmap irq_chip. 1596 * 1597 * @name: Descriptive name for IRQ controller. 1598 * @domain_suffix: Name suffix to be appended to end of IRQ domain name. Needed 1599 * when multiple regmap-IRQ controllers are created from same 1600 * device. 1601 * 1602 * @main_status: Base main status register address. For chips which have 1603 * interrupts arranged in separate sub-irq blocks with own IRQ 1604 * registers and which have a main IRQ registers indicating 1605 * sub-irq blocks with unhandled interrupts. For such chips fill 1606 * sub-irq register information in status_base, mask_base and 1607 * ack_base. 1608 * @num_main_status_bits: Should be given to chips where number of meaningfull 1609 * main status bits differs from num_regs. 1610 * @sub_reg_offsets: arrays of mappings from main register bits to sub irq 1611 * registers. First item in array describes the registers 1612 * for first main status bit. Second array for second bit etc. 1613 * Offset is given as sub register status offset to 1614 * status_base. Should contain num_regs arrays. 1615 * Can be provided for chips with more complex mapping than 1616 * 1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ... 1617 * @num_main_regs: Number of 'main status' irq registers for chips which have 1618 * main_status set. 1619 * 1620 * @status_base: Base status register address. 1621 * @mask_base: Base mask register address. Mask bits are set to 1 when an 1622 * interrupt is masked, 0 when unmasked. 1623 * @unmask_base: Base unmask register address. Unmask bits are set to 1 when 1624 * an interrupt is unmasked and 0 when masked. 1625 * @ack_base: Base ack address. If zero then the chip is clear on read. 1626 * Using zero value is possible with @use_ack bit. 1627 * @wake_base: Base address for wake enables. If zero unsupported. 1628 * @config_base: Base address for IRQ type config regs. If null unsupported. 1629 * @irq_reg_stride: Stride to use for chips where registers are not contiguous. 1630 * @init_ack_masked: Ack all masked interrupts once during initalization. 1631 * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set 1632 * both @mask_base and @unmask_base. If false, mask and unmask bits are 1633 * inverted (which is deprecated behavior); if true, bits will not be 1634 * inverted and the registers keep their normal behavior. Note that if 1635 * you use only one of @mask_base or @unmask_base, this flag has no 1636 * effect and is unnecessary. Any new drivers that set both @mask_base 1637 * and @unmask_base should set this to true to avoid relying on the 1638 * deprecated behavior. 1639 * @use_ack: Use @ack register even if it is zero. 1640 * @ack_invert: Inverted ack register: cleared bits for ack. 1641 * @clear_ack: Use this to set 1 and 0 or vice-versa to clear interrupts. 1642 * @status_invert: Inverted status register: cleared bits are active interrupts. 1643 * @wake_invert: Inverted wake register: cleared bits are wake enabled. 1644 * @type_in_mask: Use the mask registers for controlling irq type. Use this if 1645 * the hardware provides separate bits for rising/falling edge 1646 * or low/high level interrupts and they should be combined into 1647 * a single logical interrupt. Use &struct regmap_irq_type data 1648 * to define the mask bit for each irq type. 1649 * @clear_on_unmask: For chips with interrupts cleared on read: read the status 1650 * registers before unmasking interrupts to clear any bits 1651 * set when they were masked. 1652 * @runtime_pm: Hold a runtime PM lock on the device when accessing it. 1653 * @no_status: No status register: all interrupts assumed generated by device. 1654 * 1655 * @num_regs: Number of registers in each control bank. 1656 * 1657 * @irqs: Descriptors for individual IRQs. Interrupt numbers are 1658 * assigned based on the index in the array of the interrupt. 1659 * @num_irqs: Number of descriptors. 1660 * @num_config_bases: Number of config base registers. 1661 * @num_config_regs: Number of config registers for each config base register. 1662 * 1663 * @handle_pre_irq: Driver specific callback to handle interrupt from device 1664 * before regmap_irq_handler process the interrupts. 1665 * @handle_post_irq: Driver specific callback to handle interrupt from device 1666 * after handling the interrupts in regmap_irq_handler(). 1667 * @handle_mask_sync: Callback used to handle IRQ mask syncs. The index will be 1668 * in the range [0, num_regs) 1669 * @set_type_config: Callback used for configuring irq types. 1670 * @get_irq_reg: Callback for mapping (base register, index) pairs to register 1671 * addresses. The base register will be one of @status_base, 1672 * @mask_base, etc., @main_status, or any of @config_base. 1673 * The index will be in the range [0, num_main_regs[ for the 1674 * main status base, [0, num_config_regs[ for any config 1675 * register base, and [0, num_regs[ for any other base. 1676 * If unspecified then regmap_irq_get_irq_reg_linear() is used. 1677 * @irq_drv_data: Driver specific IRQ data which is passed as parameter when 1678 * driver specific pre/post interrupt handler is called. 1679 * 1680 * This is not intended to handle every possible interrupt controller, but 1681 * it should handle a substantial proportion of those that are found in the 1682 * wild. 1683 */ 1684struct regmap_irq_chip { 1685 const char *name; 1686 const char *domain_suffix; 1687 1688 unsigned int main_status; 1689 unsigned int num_main_status_bits; 1690 const struct regmap_irq_sub_irq_map *sub_reg_offsets; 1691 int num_main_regs; 1692 1693 unsigned int status_base; 1694 unsigned int mask_base; 1695 unsigned int unmask_base; 1696 unsigned int ack_base; 1697 unsigned int wake_base; 1698 const unsigned int *config_base; 1699 unsigned int irq_reg_stride; 1700 unsigned int init_ack_masked:1; 1701 unsigned int mask_unmask_non_inverted:1; 1702 unsigned int use_ack:1; 1703 unsigned int ack_invert:1; 1704 unsigned int clear_ack:1; 1705 unsigned int status_invert:1; 1706 unsigned int wake_invert:1; 1707 unsigned int type_in_mask:1; 1708 unsigned int clear_on_unmask:1; 1709 unsigned int runtime_pm:1; 1710 unsigned int no_status:1; 1711 1712 int num_regs; 1713 1714 const struct regmap_irq *irqs; 1715 int num_irqs; 1716 1717 int num_config_bases; 1718 int num_config_regs; 1719 1720 int (*handle_pre_irq)(void *irq_drv_data); 1721 int (*handle_post_irq)(void *irq_drv_data); 1722 int (*handle_mask_sync)(int index, unsigned int mask_buf_def, 1723 unsigned int mask_buf, void *irq_drv_data); 1724 int (*set_type_config)(unsigned int **buf, unsigned int type, 1725 const struct regmap_irq *irq_data, int idx, 1726 void *irq_drv_data); 1727 unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data, 1728 unsigned int base, int index); 1729 void *irq_drv_data; 1730}; 1731 1732unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data, 1733 unsigned int base, int index); 1734int regmap_irq_set_type_config_simple(unsigned int **buf, unsigned int type, 1735 const struct regmap_irq *irq_data, 1736 int idx, void *irq_drv_data); 1737 1738int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, 1739 int irq_base, const struct regmap_irq_chip *chip, 1740 struct regmap_irq_chip_data **data); 1741int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode, 1742 struct regmap *map, int irq, 1743 int irq_flags, int irq_base, 1744 const struct regmap_irq_chip *chip, 1745 struct regmap_irq_chip_data **data); 1746void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); 1747 1748int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq, 1749 int irq_flags, int irq_base, 1750 const struct regmap_irq_chip *chip, 1751 struct regmap_irq_chip_data **data); 1752int devm_regmap_add_irq_chip_fwnode(struct device *dev, 1753 struct fwnode_handle *fwnode, 1754 struct regmap *map, int irq, 1755 int irq_flags, int irq_base, 1756 const struct regmap_irq_chip *chip, 1757 struct regmap_irq_chip_data **data); 1758void devm_regmap_del_irq_chip(struct device *dev, int irq, 1759 struct regmap_irq_chip_data *data); 1760 1761int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); 1762int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); 1763struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); 1764 1765#else 1766 1767/* 1768 * These stubs should only ever be called by generic code which has 1769 * regmap based facilities, if they ever get called at runtime 1770 * something is going wrong and something probably needs to select 1771 * REGMAP. 1772 */ 1773 1774static inline int regmap_write(struct regmap *map, unsigned int reg, 1775 unsigned int val) 1776{ 1777 WARN_ONCE(1, "regmap API is disabled"); 1778 return -EINVAL; 1779} 1780 1781static inline int regmap_write_async(struct regmap *map, unsigned int reg, 1782 unsigned int val) 1783{ 1784 WARN_ONCE(1, "regmap API is disabled"); 1785 return -EINVAL; 1786} 1787 1788static inline int regmap_raw_write(struct regmap *map, unsigned int reg, 1789 const void *val, size_t val_len) 1790{ 1791 WARN_ONCE(1, "regmap API is disabled"); 1792 return -EINVAL; 1793} 1794 1795static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, 1796 const void *val, size_t val_len) 1797{ 1798 WARN_ONCE(1, "regmap API is disabled"); 1799 return -EINVAL; 1800} 1801 1802static inline int regmap_noinc_write(struct regmap *map, unsigned int reg, 1803 const void *val, size_t val_len) 1804{ 1805 WARN_ONCE(1, "regmap API is disabled"); 1806 return -EINVAL; 1807} 1808 1809static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, 1810 const void *val, size_t val_count) 1811{ 1812 WARN_ONCE(1, "regmap API is disabled"); 1813 return -EINVAL; 1814} 1815 1816static inline int regmap_read(struct regmap *map, unsigned int reg, 1817 unsigned int *val) 1818{ 1819 WARN_ONCE(1, "regmap API is disabled"); 1820 return -EINVAL; 1821} 1822 1823static inline int regmap_read_bypassed(struct regmap *map, unsigned int reg, 1824 unsigned int *val) 1825{ 1826 WARN_ONCE(1, "regmap API is disabled"); 1827 return -EINVAL; 1828} 1829 1830static inline int regmap_raw_read(struct regmap *map, unsigned int reg, 1831 void *val, size_t val_len) 1832{ 1833 WARN_ONCE(1, "regmap API is disabled"); 1834 return -EINVAL; 1835} 1836 1837static inline int regmap_noinc_read(struct regmap *map, unsigned int reg, 1838 void *val, size_t val_len) 1839{ 1840 WARN_ONCE(1, "regmap API is disabled"); 1841 return -EINVAL; 1842} 1843 1844static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, 1845 void *val, size_t val_count) 1846{ 1847 WARN_ONCE(1, "regmap API is disabled"); 1848 return -EINVAL; 1849} 1850 1851static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, 1852 unsigned int mask, unsigned int val, 1853 bool *change, bool async, bool force) 1854{ 1855 WARN_ONCE(1, "regmap API is disabled"); 1856 return -EINVAL; 1857} 1858 1859static inline int regmap_set_bits(struct regmap *map, 1860 unsigned int reg, unsigned int bits) 1861{ 1862 WARN_ONCE(1, "regmap API is disabled"); 1863 return -EINVAL; 1864} 1865 1866static inline int regmap_clear_bits(struct regmap *map, 1867 unsigned int reg, unsigned int bits) 1868{ 1869 WARN_ONCE(1, "regmap API is disabled"); 1870 return -EINVAL; 1871} 1872 1873static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, 1874 unsigned int bits, bool value) 1875{ 1876 WARN_ONCE(1, "regmap API is disabled"); 1877 return -EINVAL; 1878} 1879 1880static inline int regmap_test_bits(struct regmap *map, 1881 unsigned int reg, unsigned int bits) 1882{ 1883 WARN_ONCE(1, "regmap API is disabled"); 1884 return -EINVAL; 1885} 1886 1887static inline int regmap_field_update_bits_base(struct regmap_field *field, 1888 unsigned int mask, unsigned int val, 1889 bool *change, bool async, bool force) 1890{ 1891 WARN_ONCE(1, "regmap API is disabled"); 1892 return -EINVAL; 1893} 1894 1895static inline int regmap_fields_update_bits_base(struct regmap_field *field, 1896 unsigned int id, 1897 unsigned int mask, unsigned int val, 1898 bool *change, bool async, bool force) 1899{ 1900 WARN_ONCE(1, "regmap API is disabled"); 1901 return -EINVAL; 1902} 1903 1904static inline int regmap_update_bits(struct regmap *map, unsigned int reg, 1905 unsigned int mask, unsigned int val) 1906{ 1907 WARN_ONCE(1, "regmap API is disabled"); 1908 return -EINVAL; 1909} 1910 1911static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg, 1912 unsigned int mask, unsigned int val) 1913{ 1914 WARN_ONCE(1, "regmap API is disabled"); 1915 return -EINVAL; 1916} 1917 1918static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg, 1919 unsigned int mask, unsigned int val, 1920 bool *change) 1921{ 1922 WARN_ONCE(1, "regmap API is disabled"); 1923 return -EINVAL; 1924} 1925 1926static inline int 1927regmap_update_bits_check_async(struct regmap *map, unsigned int reg, 1928 unsigned int mask, unsigned int val, 1929 bool *change) 1930{ 1931 WARN_ONCE(1, "regmap API is disabled"); 1932 return -EINVAL; 1933} 1934 1935static inline int regmap_write_bits(struct regmap *map, unsigned int reg, 1936 unsigned int mask, unsigned int val) 1937{ 1938 WARN_ONCE(1, "regmap API is disabled"); 1939 return -EINVAL; 1940} 1941 1942static inline int regmap_field_write(struct regmap_field *field, 1943 unsigned int val) 1944{ 1945 WARN_ONCE(1, "regmap API is disabled"); 1946 return -EINVAL; 1947} 1948 1949static inline int regmap_field_force_write(struct regmap_field *field, 1950 unsigned int val) 1951{ 1952 WARN_ONCE(1, "regmap API is disabled"); 1953 return -EINVAL; 1954} 1955 1956static inline int regmap_field_update_bits(struct regmap_field *field, 1957 unsigned int mask, unsigned int val) 1958{ 1959 WARN_ONCE(1, "regmap API is disabled"); 1960 return -EINVAL; 1961} 1962 1963static inline int 1964regmap_field_force_update_bits(struct regmap_field *field, 1965 unsigned int mask, unsigned int val) 1966{ 1967 WARN_ONCE(1, "regmap API is disabled"); 1968 return -EINVAL; 1969} 1970 1971static inline int regmap_field_set_bits(struct regmap_field *field, 1972 unsigned int bits) 1973{ 1974 WARN_ONCE(1, "regmap API is disabled"); 1975 return -EINVAL; 1976} 1977 1978static inline int regmap_field_clear_bits(struct regmap_field *field, 1979 unsigned int bits) 1980{ 1981 WARN_ONCE(1, "regmap API is disabled"); 1982 return -EINVAL; 1983} 1984 1985static inline int regmap_field_test_bits(struct regmap_field *field, 1986 unsigned int bits) 1987{ 1988 WARN_ONCE(1, "regmap API is disabled"); 1989 return -EINVAL; 1990} 1991 1992static inline int regmap_fields_write(struct regmap_field *field, 1993 unsigned int id, unsigned int val) 1994{ 1995 WARN_ONCE(1, "regmap API is disabled"); 1996 return -EINVAL; 1997} 1998 1999static inline int regmap_fields_force_write(struct regmap_field *field, 2000 unsigned int id, unsigned int val) 2001{ 2002 WARN_ONCE(1, "regmap API is disabled"); 2003 return -EINVAL; 2004} 2005 2006static inline int 2007regmap_fields_update_bits(struct regmap_field *field, unsigned int id, 2008 unsigned int mask, unsigned int val) 2009{ 2010 WARN_ONCE(1, "regmap API is disabled"); 2011 return -EINVAL; 2012} 2013 2014static inline int 2015regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id, 2016 unsigned int mask, unsigned int val) 2017{ 2018 WARN_ONCE(1, "regmap API is disabled"); 2019 return -EINVAL; 2020} 2021 2022static inline int regmap_get_val_bytes(struct regmap *map) 2023{ 2024 WARN_ONCE(1, "regmap API is disabled"); 2025 return -EINVAL; 2026} 2027 2028static inline int regmap_get_max_register(struct regmap *map) 2029{ 2030 WARN_ONCE(1, "regmap API is disabled"); 2031 return -EINVAL; 2032} 2033 2034static inline int regmap_get_reg_stride(struct regmap *map) 2035{ 2036 WARN_ONCE(1, "regmap API is disabled"); 2037 return -EINVAL; 2038} 2039 2040static inline bool regmap_might_sleep(struct regmap *map) 2041{ 2042 WARN_ONCE(1, "regmap API is disabled"); 2043 return true; 2044} 2045 2046static inline int regcache_sync(struct regmap *map) 2047{ 2048 WARN_ONCE(1, "regmap API is disabled"); 2049 return -EINVAL; 2050} 2051 2052static inline int regcache_sync_region(struct regmap *map, unsigned int min, 2053 unsigned int max) 2054{ 2055 WARN_ONCE(1, "regmap API is disabled"); 2056 return -EINVAL; 2057} 2058 2059static inline int regcache_drop_region(struct regmap *map, unsigned int min, 2060 unsigned int max) 2061{ 2062 WARN_ONCE(1, "regmap API is disabled"); 2063 return -EINVAL; 2064} 2065 2066static inline void regcache_cache_only(struct regmap *map, bool enable) 2067{ 2068 WARN_ONCE(1, "regmap API is disabled"); 2069} 2070 2071static inline void regcache_cache_bypass(struct regmap *map, bool enable) 2072{ 2073 WARN_ONCE(1, "regmap API is disabled"); 2074} 2075 2076static inline void regcache_mark_dirty(struct regmap *map) 2077{ 2078 WARN_ONCE(1, "regmap API is disabled"); 2079} 2080 2081static inline void regmap_async_complete(struct regmap *map) 2082{ 2083 WARN_ONCE(1, "regmap API is disabled"); 2084} 2085 2086static inline int regmap_register_patch(struct regmap *map, 2087 const struct reg_sequence *regs, 2088 int num_regs) 2089{ 2090 WARN_ONCE(1, "regmap API is disabled"); 2091 return -EINVAL; 2092} 2093 2094static inline int regmap_parse_val(struct regmap *map, const void *buf, 2095 unsigned int *val) 2096{ 2097 WARN_ONCE(1, "regmap API is disabled"); 2098 return -EINVAL; 2099} 2100 2101static inline struct regmap *dev_get_regmap(struct device *dev, 2102 const char *name) 2103{ 2104 return NULL; 2105} 2106 2107static inline struct device *regmap_get_device(struct regmap *map) 2108{ 2109 WARN_ONCE(1, "regmap API is disabled"); 2110 return NULL; 2111} 2112 2113#endif 2114 2115#endif