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1 | #ifndef __LINUX_REGMAP_H | |
2 | #define __LINUX_REGMAP_H | |
3 | ||
4 | /* | |
5 | * Register map access API | |
6 | * | |
7 | * Copyright 2011 Wolfson Microelectronics plc | |
8 | * | |
9 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/list.h> | |
17 | #include <linux/rbtree.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/bug.h> | |
21 | #include <linux/lockdep.h> | |
22 | ||
23 | struct module; | |
24 | struct device; | |
25 | struct i2c_client; | |
26 | struct irq_domain; | |
27 | struct spi_device; | |
28 | struct spmi_device; | |
29 | struct regmap; | |
30 | struct regmap_range_cfg; | |
31 | struct regmap_field; | |
32 | struct snd_ac97; | |
33 | ||
34 | /* An enum of all the supported cache types */ | |
35 | enum regcache_type { | |
36 | REGCACHE_NONE, | |
37 | REGCACHE_RBTREE, | |
38 | REGCACHE_COMPRESSED, | |
39 | REGCACHE_FLAT, | |
40 | }; | |
41 | ||
42 | /** | |
43 | * Default value for a register. We use an array of structs rather | |
44 | * than a simple array as many modern devices have very sparse | |
45 | * register maps. | |
46 | * | |
47 | * @reg: Register address. | |
48 | * @def: Register default value. | |
49 | */ | |
50 | struct reg_default { | |
51 | unsigned int reg; | |
52 | unsigned int def; | |
53 | }; | |
54 | ||
55 | /** | |
56 | * Register/value pairs for sequences of writes with an optional delay in | |
57 | * microseconds to be applied after each write. | |
58 | * | |
59 | * @reg: Register address. | |
60 | * @def: Register value. | |
61 | * @delay_us: Delay to be applied after the register write in microseconds | |
62 | */ | |
63 | struct reg_sequence { | |
64 | unsigned int reg; | |
65 | unsigned int def; | |
66 | unsigned int delay_us; | |
67 | }; | |
68 | ||
69 | #define regmap_update_bits(map, reg, mask, val) \ | |
70 | regmap_update_bits_base(map, reg, mask, val, NULL, false, false) | |
71 | #define regmap_update_bits_async(map, reg, mask, val)\ | |
72 | regmap_update_bits_base(map, reg, mask, val, NULL, true, false) | |
73 | #define regmap_update_bits_check(map, reg, mask, val, change)\ | |
74 | regmap_update_bits_base(map, reg, mask, val, change, false, false) | |
75 | #define regmap_update_bits_check_async(map, reg, mask, val, change)\ | |
76 | regmap_update_bits_base(map, reg, mask, val, change, true, false) | |
77 | ||
78 | #define regmap_write_bits(map, reg, mask, val) \ | |
79 | regmap_update_bits_base(map, reg, mask, val, NULL, false, true) | |
80 | ||
81 | #define regmap_field_write(field, val) \ | |
82 | regmap_field_update_bits_base(field, ~0, val, NULL, false, false) | |
83 | #define regmap_field_force_write(field, val) \ | |
84 | regmap_field_update_bits_base(field, ~0, val, NULL, false, true) | |
85 | #define regmap_field_update_bits(field, mask, val)\ | |
86 | regmap_field_update_bits_base(field, mask, val, NULL, false, false) | |
87 | #define regmap_field_force_update_bits(field, mask, val) \ | |
88 | regmap_field_update_bits_base(field, mask, val, NULL, false, true) | |
89 | ||
90 | #define regmap_fields_write(field, id, val) \ | |
91 | regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, false) | |
92 | #define regmap_fields_force_write(field, id, val) \ | |
93 | regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, true) | |
94 | #define regmap_fields_update_bits(field, id, mask, val)\ | |
95 | regmap_fields_update_bits_base(field, id, mask, val, NULL, false, false) | |
96 | #define regmap_fields_force_update_bits(field, id, mask, val) \ | |
97 | regmap_fields_update_bits_base(field, id, mask, val, NULL, false, true) | |
98 | ||
99 | /** | |
100 | * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs | |
101 | * @map: Regmap to read from | |
102 | * @addr: Address to poll | |
103 | * @val: Unsigned integer variable to read the value into | |
104 | * @cond: Break condition (usually involving @val) | |
105 | * @sleep_us: Maximum time to sleep between reads in us (0 | |
106 | * tight-loops). Should be less than ~20ms since usleep_range | |
107 | * is used (see Documentation/timers/timers-howto.txt). | |
108 | * @timeout_us: Timeout in us, 0 means never timeout | |
109 | * | |
110 | * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read | |
111 | * error return value in case of a error read. In the two former cases, | |
112 | * the last read value at @addr is stored in @val. Must not be called | |
113 | * from atomic context if sleep_us or timeout_us are used. | |
114 | * | |
115 | * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. | |
116 | */ | |
117 | #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ | |
118 | ({ \ | |
119 | ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \ | |
120 | int pollret; \ | |
121 | might_sleep_if(sleep_us); \ | |
122 | for (;;) { \ | |
123 | pollret = regmap_read((map), (addr), &(val)); \ | |
124 | if (pollret) \ | |
125 | break; \ | |
126 | if (cond) \ | |
127 | break; \ | |
128 | if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \ | |
129 | pollret = regmap_read((map), (addr), &(val)); \ | |
130 | break; \ | |
131 | } \ | |
132 | if (sleep_us) \ | |
133 | usleep_range((sleep_us >> 2) + 1, sleep_us); \ | |
134 | } \ | |
135 | pollret ?: ((cond) ? 0 : -ETIMEDOUT); \ | |
136 | }) | |
137 | ||
138 | #ifdef CONFIG_REGMAP | |
139 | ||
140 | enum regmap_endian { | |
141 | /* Unspecified -> 0 -> Backwards compatible default */ | |
142 | REGMAP_ENDIAN_DEFAULT = 0, | |
143 | REGMAP_ENDIAN_BIG, | |
144 | REGMAP_ENDIAN_LITTLE, | |
145 | REGMAP_ENDIAN_NATIVE, | |
146 | }; | |
147 | ||
148 | /** | |
149 | * A register range, used for access related checks | |
150 | * (readable/writeable/volatile/precious checks) | |
151 | * | |
152 | * @range_min: address of first register | |
153 | * @range_max: address of last register | |
154 | */ | |
155 | struct regmap_range { | |
156 | unsigned int range_min; | |
157 | unsigned int range_max; | |
158 | }; | |
159 | ||
160 | #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } | |
161 | ||
162 | /* | |
163 | * A table of ranges including some yes ranges and some no ranges. | |
164 | * If a register belongs to a no_range, the corresponding check function | |
165 | * will return false. If a register belongs to a yes range, the corresponding | |
166 | * check function will return true. "no_ranges" are searched first. | |
167 | * | |
168 | * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" | |
169 | * @n_yes_ranges: size of the above array | |
170 | * @no_ranges: pointer to an array of regmap ranges used as "no ranges" | |
171 | * @n_no_ranges: size of the above array | |
172 | */ | |
173 | struct regmap_access_table { | |
174 | const struct regmap_range *yes_ranges; | |
175 | unsigned int n_yes_ranges; | |
176 | const struct regmap_range *no_ranges; | |
177 | unsigned int n_no_ranges; | |
178 | }; | |
179 | ||
180 | typedef void (*regmap_lock)(void *); | |
181 | typedef void (*regmap_unlock)(void *); | |
182 | ||
183 | /** | |
184 | * Configuration for the register map of a device. | |
185 | * | |
186 | * @name: Optional name of the regmap. Useful when a device has multiple | |
187 | * register regions. | |
188 | * | |
189 | * @reg_bits: Number of bits in a register address, mandatory. | |
190 | * @reg_stride: The register address stride. Valid register addresses are a | |
191 | * multiple of this value. If set to 0, a value of 1 will be | |
192 | * used. | |
193 | * @pad_bits: Number of bits of padding between register and value. | |
194 | * @val_bits: Number of bits in a register value, mandatory. | |
195 | * | |
196 | * @writeable_reg: Optional callback returning true if the register | |
197 | * can be written to. If this field is NULL but wr_table | |
198 | * (see below) is not, the check is performed on such table | |
199 | * (a register is writeable if it belongs to one of the ranges | |
200 | * specified by wr_table). | |
201 | * @readable_reg: Optional callback returning true if the register | |
202 | * can be read from. If this field is NULL but rd_table | |
203 | * (see below) is not, the check is performed on such table | |
204 | * (a register is readable if it belongs to one of the ranges | |
205 | * specified by rd_table). | |
206 | * @volatile_reg: Optional callback returning true if the register | |
207 | * value can't be cached. If this field is NULL but | |
208 | * volatile_table (see below) is not, the check is performed on | |
209 | * such table (a register is volatile if it belongs to one of | |
210 | * the ranges specified by volatile_table). | |
211 | * @precious_reg: Optional callback returning true if the register | |
212 | * should not be read outside of a call from the driver | |
213 | * (e.g., a clear on read interrupt status register). If this | |
214 | * field is NULL but precious_table (see below) is not, the | |
215 | * check is performed on such table (a register is precious if | |
216 | * it belongs to one of the ranges specified by precious_table). | |
217 | * @lock: Optional lock callback (overrides regmap's default lock | |
218 | * function, based on spinlock or mutex). | |
219 | * @unlock: As above for unlocking. | |
220 | * @lock_arg: this field is passed as the only argument of lock/unlock | |
221 | * functions (ignored in case regular lock/unlock functions | |
222 | * are not overridden). | |
223 | * @reg_read: Optional callback that if filled will be used to perform | |
224 | * all the reads from the registers. Should only be provided for | |
225 | * devices whose read operation cannot be represented as a simple | |
226 | * read operation on a bus such as SPI, I2C, etc. Most of the | |
227 | * devices do not need this. | |
228 | * @reg_write: Same as above for writing. | |
229 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex | |
230 | * to perform locking. This field is ignored if custom lock/unlock | |
231 | * functions are used (see fields lock/unlock of struct regmap_config). | |
232 | * This field is a duplicate of a similar file in | |
233 | * 'struct regmap_bus' and serves exact same purpose. | |
234 | * Use it only for "no-bus" cases. | |
235 | * @max_register: Optional, specifies the maximum valid register address. | |
236 | * @wr_table: Optional, points to a struct regmap_access_table specifying | |
237 | * valid ranges for write access. | |
238 | * @rd_table: As above, for read access. | |
239 | * @volatile_table: As above, for volatile registers. | |
240 | * @precious_table: As above, for precious registers. | |
241 | * @reg_defaults: Power on reset values for registers (for use with | |
242 | * register cache support). | |
243 | * @num_reg_defaults: Number of elements in reg_defaults. | |
244 | * | |
245 | * @read_flag_mask: Mask to be set in the top bytes of the register when doing | |
246 | * a read. | |
247 | * @write_flag_mask: Mask to be set in the top bytes of the register when doing | |
248 | * a write. If both read_flag_mask and write_flag_mask are | |
249 | * empty the regmap_bus default masks are used. | |
250 | * @use_single_rw: If set, converts the bulk read and write operations into | |
251 | * a series of single read and write operations. This is useful | |
252 | * for device that does not support bulk read and write. | |
253 | * @can_multi_write: If set, the device supports the multi write mode of bulk | |
254 | * write operations, if clear multi write requests will be | |
255 | * split into individual write operations | |
256 | * | |
257 | * @cache_type: The actual cache type. | |
258 | * @reg_defaults_raw: Power on reset values for registers (for use with | |
259 | * register cache support). | |
260 | * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. | |
261 | * @reg_format_endian: Endianness for formatted register addresses. If this is | |
262 | * DEFAULT, the @reg_format_endian_default value from the | |
263 | * regmap bus is used. | |
264 | * @val_format_endian: Endianness for formatted register values. If this is | |
265 | * DEFAULT, the @reg_format_endian_default value from the | |
266 | * regmap bus is used. | |
267 | * | |
268 | * @ranges: Array of configuration entries for virtual address ranges. | |
269 | * @num_ranges: Number of range configuration entries. | |
270 | */ | |
271 | struct regmap_config { | |
272 | const char *name; | |
273 | ||
274 | int reg_bits; | |
275 | int reg_stride; | |
276 | int pad_bits; | |
277 | int val_bits; | |
278 | ||
279 | bool (*writeable_reg)(struct device *dev, unsigned int reg); | |
280 | bool (*readable_reg)(struct device *dev, unsigned int reg); | |
281 | bool (*volatile_reg)(struct device *dev, unsigned int reg); | |
282 | bool (*precious_reg)(struct device *dev, unsigned int reg); | |
283 | regmap_lock lock; | |
284 | regmap_unlock unlock; | |
285 | void *lock_arg; | |
286 | ||
287 | int (*reg_read)(void *context, unsigned int reg, unsigned int *val); | |
288 | int (*reg_write)(void *context, unsigned int reg, unsigned int val); | |
289 | ||
290 | bool fast_io; | |
291 | ||
292 | unsigned int max_register; | |
293 | const struct regmap_access_table *wr_table; | |
294 | const struct regmap_access_table *rd_table; | |
295 | const struct regmap_access_table *volatile_table; | |
296 | const struct regmap_access_table *precious_table; | |
297 | const struct reg_default *reg_defaults; | |
298 | unsigned int num_reg_defaults; | |
299 | enum regcache_type cache_type; | |
300 | const void *reg_defaults_raw; | |
301 | unsigned int num_reg_defaults_raw; | |
302 | ||
303 | unsigned long read_flag_mask; | |
304 | unsigned long write_flag_mask; | |
305 | ||
306 | bool use_single_rw; | |
307 | bool can_multi_write; | |
308 | ||
309 | enum regmap_endian reg_format_endian; | |
310 | enum regmap_endian val_format_endian; | |
311 | ||
312 | const struct regmap_range_cfg *ranges; | |
313 | unsigned int num_ranges; | |
314 | }; | |
315 | ||
316 | /** | |
317 | * Configuration for indirectly accessed or paged registers. | |
318 | * Registers, mapped to this virtual range, are accessed in two steps: | |
319 | * 1. page selector register update; | |
320 | * 2. access through data window registers. | |
321 | * | |
322 | * @name: Descriptive name for diagnostics | |
323 | * | |
324 | * @range_min: Address of the lowest register address in virtual range. | |
325 | * @range_max: Address of the highest register in virtual range. | |
326 | * | |
327 | * @page_sel_reg: Register with selector field. | |
328 | * @page_sel_mask: Bit shift for selector value. | |
329 | * @page_sel_shift: Bit mask for selector value. | |
330 | * | |
331 | * @window_start: Address of first (lowest) register in data window. | |
332 | * @window_len: Number of registers in data window. | |
333 | */ | |
334 | struct regmap_range_cfg { | |
335 | const char *name; | |
336 | ||
337 | /* Registers of virtual address range */ | |
338 | unsigned int range_min; | |
339 | unsigned int range_max; | |
340 | ||
341 | /* Page selector for indirect addressing */ | |
342 | unsigned int selector_reg; | |
343 | unsigned int selector_mask; | |
344 | int selector_shift; | |
345 | ||
346 | /* Data window (per each page) */ | |
347 | unsigned int window_start; | |
348 | unsigned int window_len; | |
349 | }; | |
350 | ||
351 | struct regmap_async; | |
352 | ||
353 | typedef int (*regmap_hw_write)(void *context, const void *data, | |
354 | size_t count); | |
355 | typedef int (*regmap_hw_gather_write)(void *context, | |
356 | const void *reg, size_t reg_len, | |
357 | const void *val, size_t val_len); | |
358 | typedef int (*regmap_hw_async_write)(void *context, | |
359 | const void *reg, size_t reg_len, | |
360 | const void *val, size_t val_len, | |
361 | struct regmap_async *async); | |
362 | typedef int (*regmap_hw_read)(void *context, | |
363 | const void *reg_buf, size_t reg_size, | |
364 | void *val_buf, size_t val_size); | |
365 | typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, | |
366 | unsigned int *val); | |
367 | typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, | |
368 | unsigned int val); | |
369 | typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, | |
370 | unsigned int mask, unsigned int val); | |
371 | typedef struct regmap_async *(*regmap_hw_async_alloc)(void); | |
372 | typedef void (*regmap_hw_free_context)(void *context); | |
373 | ||
374 | /** | |
375 | * Description of a hardware bus for the register map infrastructure. | |
376 | * | |
377 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex | |
378 | * to perform locking. This field is ignored if custom lock/unlock | |
379 | * functions are used (see fields lock/unlock of | |
380 | * struct regmap_config). | |
381 | * @write: Write operation. | |
382 | * @gather_write: Write operation with split register/value, return -ENOTSUPP | |
383 | * if not implemented on a given device. | |
384 | * @async_write: Write operation which completes asynchronously, optional and | |
385 | * must serialise with respect to non-async I/O. | |
386 | * @reg_write: Write a single register value to the given register address. This | |
387 | * write operation has to complete when returning from the function. | |
388 | * @read: Read operation. Data is returned in the buffer used to transmit | |
389 | * data. | |
390 | * @reg_read: Read a single register value from a given register address. | |
391 | * @free_context: Free context. | |
392 | * @async_alloc: Allocate a regmap_async() structure. | |
393 | * @read_flag_mask: Mask to be set in the top byte of the register when doing | |
394 | * a read. | |
395 | * @reg_format_endian_default: Default endianness for formatted register | |
396 | * addresses. Used when the regmap_config specifies DEFAULT. If this is | |
397 | * DEFAULT, BIG is assumed. | |
398 | * @val_format_endian_default: Default endianness for formatted register | |
399 | * values. Used when the regmap_config specifies DEFAULT. If this is | |
400 | * DEFAULT, BIG is assumed. | |
401 | * @max_raw_read: Max raw read size that can be used on the bus. | |
402 | * @max_raw_write: Max raw write size that can be used on the bus. | |
403 | */ | |
404 | struct regmap_bus { | |
405 | bool fast_io; | |
406 | regmap_hw_write write; | |
407 | regmap_hw_gather_write gather_write; | |
408 | regmap_hw_async_write async_write; | |
409 | regmap_hw_reg_write reg_write; | |
410 | regmap_hw_reg_update_bits reg_update_bits; | |
411 | regmap_hw_read read; | |
412 | regmap_hw_reg_read reg_read; | |
413 | regmap_hw_free_context free_context; | |
414 | regmap_hw_async_alloc async_alloc; | |
415 | u8 read_flag_mask; | |
416 | enum regmap_endian reg_format_endian_default; | |
417 | enum regmap_endian val_format_endian_default; | |
418 | size_t max_raw_read; | |
419 | size_t max_raw_write; | |
420 | }; | |
421 | ||
422 | /* | |
423 | * __regmap_init functions. | |
424 | * | |
425 | * These functions take a lock key and name parameter, and should not be called | |
426 | * directly. Instead, use the regmap_init macros that generate a key and name | |
427 | * for each call. | |
428 | */ | |
429 | struct regmap *__regmap_init(struct device *dev, | |
430 | const struct regmap_bus *bus, | |
431 | void *bus_context, | |
432 | const struct regmap_config *config, | |
433 | struct lock_class_key *lock_key, | |
434 | const char *lock_name); | |
435 | struct regmap *__regmap_init_i2c(struct i2c_client *i2c, | |
436 | const struct regmap_config *config, | |
437 | struct lock_class_key *lock_key, | |
438 | const char *lock_name); | |
439 | struct regmap *__regmap_init_spi(struct spi_device *dev, | |
440 | const struct regmap_config *config, | |
441 | struct lock_class_key *lock_key, | |
442 | const char *lock_name); | |
443 | struct regmap *__regmap_init_spmi_base(struct spmi_device *dev, | |
444 | const struct regmap_config *config, | |
445 | struct lock_class_key *lock_key, | |
446 | const char *lock_name); | |
447 | struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev, | |
448 | const struct regmap_config *config, | |
449 | struct lock_class_key *lock_key, | |
450 | const char *lock_name); | |
451 | struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, | |
452 | void __iomem *regs, | |
453 | const struct regmap_config *config, | |
454 | struct lock_class_key *lock_key, | |
455 | const char *lock_name); | |
456 | struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, | |
457 | const struct regmap_config *config, | |
458 | struct lock_class_key *lock_key, | |
459 | const char *lock_name); | |
460 | ||
461 | struct regmap *__devm_regmap_init(struct device *dev, | |
462 | const struct regmap_bus *bus, | |
463 | void *bus_context, | |
464 | const struct regmap_config *config, | |
465 | struct lock_class_key *lock_key, | |
466 | const char *lock_name); | |
467 | struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, | |
468 | const struct regmap_config *config, | |
469 | struct lock_class_key *lock_key, | |
470 | const char *lock_name); | |
471 | struct regmap *__devm_regmap_init_spi(struct spi_device *dev, | |
472 | const struct regmap_config *config, | |
473 | struct lock_class_key *lock_key, | |
474 | const char *lock_name); | |
475 | struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev, | |
476 | const struct regmap_config *config, | |
477 | struct lock_class_key *lock_key, | |
478 | const char *lock_name); | |
479 | struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev, | |
480 | const struct regmap_config *config, | |
481 | struct lock_class_key *lock_key, | |
482 | const char *lock_name); | |
483 | struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, | |
484 | const char *clk_id, | |
485 | void __iomem *regs, | |
486 | const struct regmap_config *config, | |
487 | struct lock_class_key *lock_key, | |
488 | const char *lock_name); | |
489 | struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, | |
490 | const struct regmap_config *config, | |
491 | struct lock_class_key *lock_key, | |
492 | const char *lock_name); | |
493 | ||
494 | /* | |
495 | * Wrapper for regmap_init macros to include a unique lockdep key and name | |
496 | * for each call. No-op if CONFIG_LOCKDEP is not set. | |
497 | * | |
498 | * @fn: Real function to call (in the form __[*_]regmap_init[_*]) | |
499 | * @name: Config variable name (#config in the calling macro) | |
500 | **/ | |
501 | #ifdef CONFIG_LOCKDEP | |
502 | #define __regmap_lockdep_wrapper(fn, name, ...) \ | |
503 | ( \ | |
504 | ({ \ | |
505 | static struct lock_class_key _key; \ | |
506 | fn(__VA_ARGS__, &_key, \ | |
507 | KBUILD_BASENAME ":" \ | |
508 | __stringify(__LINE__) ":" \ | |
509 | "(" name ")->lock"); \ | |
510 | }) \ | |
511 | ) | |
512 | #else | |
513 | #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL) | |
514 | #endif | |
515 | ||
516 | /** | |
517 | * regmap_init(): Initialise register map | |
518 | * | |
519 | * @dev: Device that will be interacted with | |
520 | * @bus: Bus-specific callbacks to use with device | |
521 | * @bus_context: Data passed to bus-specific callbacks | |
522 | * @config: Configuration for register map | |
523 | * | |
524 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
525 | * a struct regmap. This function should generally not be called | |
526 | * directly, it should be called by bus-specific init functions. | |
527 | */ | |
528 | #define regmap_init(dev, bus, bus_context, config) \ | |
529 | __regmap_lockdep_wrapper(__regmap_init, #config, \ | |
530 | dev, bus, bus_context, config) | |
531 | int regmap_attach_dev(struct device *dev, struct regmap *map, | |
532 | const struct regmap_config *config); | |
533 | ||
534 | /** | |
535 | * regmap_init_i2c(): Initialise register map | |
536 | * | |
537 | * @i2c: Device that will be interacted with | |
538 | * @config: Configuration for register map | |
539 | * | |
540 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
541 | * a struct regmap. | |
542 | */ | |
543 | #define regmap_init_i2c(i2c, config) \ | |
544 | __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ | |
545 | i2c, config) | |
546 | ||
547 | /** | |
548 | * regmap_init_spi(): Initialise register map | |
549 | * | |
550 | * @spi: Device that will be interacted with | |
551 | * @config: Configuration for register map | |
552 | * | |
553 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
554 | * a struct regmap. | |
555 | */ | |
556 | #define regmap_init_spi(dev, config) \ | |
557 | __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ | |
558 | dev, config) | |
559 | ||
560 | /** | |
561 | * regmap_init_spmi_base(): Create regmap for the Base register space | |
562 | * @sdev: SPMI device that will be interacted with | |
563 | * @config: Configuration for register map | |
564 | * | |
565 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
566 | * a struct regmap. | |
567 | */ | |
568 | #define regmap_init_spmi_base(dev, config) \ | |
569 | __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ | |
570 | dev, config) | |
571 | ||
572 | /** | |
573 | * regmap_init_spmi_ext(): Create regmap for Ext register space | |
574 | * @sdev: Device that will be interacted with | |
575 | * @config: Configuration for register map | |
576 | * | |
577 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
578 | * a struct regmap. | |
579 | */ | |
580 | #define regmap_init_spmi_ext(dev, config) \ | |
581 | __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ | |
582 | dev, config) | |
583 | ||
584 | /** | |
585 | * regmap_init_mmio_clk(): Initialise register map with register clock | |
586 | * | |
587 | * @dev: Device that will be interacted with | |
588 | * @clk_id: register clock consumer ID | |
589 | * @regs: Pointer to memory-mapped IO region | |
590 | * @config: Configuration for register map | |
591 | * | |
592 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
593 | * a struct regmap. | |
594 | */ | |
595 | #define regmap_init_mmio_clk(dev, clk_id, regs, config) \ | |
596 | __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ | |
597 | dev, clk_id, regs, config) | |
598 | ||
599 | /** | |
600 | * regmap_init_mmio(): Initialise register map | |
601 | * | |
602 | * @dev: Device that will be interacted with | |
603 | * @regs: Pointer to memory-mapped IO region | |
604 | * @config: Configuration for register map | |
605 | * | |
606 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
607 | * a struct regmap. | |
608 | */ | |
609 | #define regmap_init_mmio(dev, regs, config) \ | |
610 | regmap_init_mmio_clk(dev, NULL, regs, config) | |
611 | ||
612 | /** | |
613 | * regmap_init_ac97(): Initialise AC'97 register map | |
614 | * | |
615 | * @ac97: Device that will be interacted with | |
616 | * @config: Configuration for register map | |
617 | * | |
618 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
619 | * a struct regmap. | |
620 | */ | |
621 | #define regmap_init_ac97(ac97, config) \ | |
622 | __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \ | |
623 | ac97, config) | |
624 | bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); | |
625 | ||
626 | /** | |
627 | * devm_regmap_init(): Initialise managed register map | |
628 | * | |
629 | * @dev: Device that will be interacted with | |
630 | * @bus: Bus-specific callbacks to use with device | |
631 | * @bus_context: Data passed to bus-specific callbacks | |
632 | * @config: Configuration for register map | |
633 | * | |
634 | * The return value will be an ERR_PTR() on error or a valid pointer | |
635 | * to a struct regmap. This function should generally not be called | |
636 | * directly, it should be called by bus-specific init functions. The | |
637 | * map will be automatically freed by the device management code. | |
638 | */ | |
639 | #define devm_regmap_init(dev, bus, bus_context, config) \ | |
640 | __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ | |
641 | dev, bus, bus_context, config) | |
642 | ||
643 | /** | |
644 | * devm_regmap_init_i2c(): Initialise managed register map | |
645 | * | |
646 | * @i2c: Device that will be interacted with | |
647 | * @config: Configuration for register map | |
648 | * | |
649 | * The return value will be an ERR_PTR() on error or a valid pointer | |
650 | * to a struct regmap. The regmap will be automatically freed by the | |
651 | * device management code. | |
652 | */ | |
653 | #define devm_regmap_init_i2c(i2c, config) \ | |
654 | __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ | |
655 | i2c, config) | |
656 | ||
657 | /** | |
658 | * devm_regmap_init_spi(): Initialise register map | |
659 | * | |
660 | * @spi: Device that will be interacted with | |
661 | * @config: Configuration for register map | |
662 | * | |
663 | * The return value will be an ERR_PTR() on error or a valid pointer | |
664 | * to a struct regmap. The map will be automatically freed by the | |
665 | * device management code. | |
666 | */ | |
667 | #define devm_regmap_init_spi(dev, config) \ | |
668 | __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ | |
669 | dev, config) | |
670 | ||
671 | /** | |
672 | * devm_regmap_init_spmi_base(): Create managed regmap for Base register space | |
673 | * @sdev: SPMI device that will be interacted with | |
674 | * @config: Configuration for register map | |
675 | * | |
676 | * The return value will be an ERR_PTR() on error or a valid pointer | |
677 | * to a struct regmap. The regmap will be automatically freed by the | |
678 | * device management code. | |
679 | */ | |
680 | #define devm_regmap_init_spmi_base(dev, config) \ | |
681 | __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ | |
682 | dev, config) | |
683 | ||
684 | /** | |
685 | * devm_regmap_init_spmi_ext(): Create managed regmap for Ext register space | |
686 | * @sdev: SPMI device that will be interacted with | |
687 | * @config: Configuration for register map | |
688 | * | |
689 | * The return value will be an ERR_PTR() on error or a valid pointer | |
690 | * to a struct regmap. The regmap will be automatically freed by the | |
691 | * device management code. | |
692 | */ | |
693 | #define devm_regmap_init_spmi_ext(dev, config) \ | |
694 | __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ | |
695 | dev, config) | |
696 | ||
697 | /** | |
698 | * devm_regmap_init_mmio_clk(): Initialise managed register map with clock | |
699 | * | |
700 | * @dev: Device that will be interacted with | |
701 | * @clk_id: register clock consumer ID | |
702 | * @regs: Pointer to memory-mapped IO region | |
703 | * @config: Configuration for register map | |
704 | * | |
705 | * The return value will be an ERR_PTR() on error or a valid pointer | |
706 | * to a struct regmap. The regmap will be automatically freed by the | |
707 | * device management code. | |
708 | */ | |
709 | #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \ | |
710 | __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \ | |
711 | dev, clk_id, regs, config) | |
712 | ||
713 | /** | |
714 | * devm_regmap_init_mmio(): Initialise managed register map | |
715 | * | |
716 | * @dev: Device that will be interacted with | |
717 | * @regs: Pointer to memory-mapped IO region | |
718 | * @config: Configuration for register map | |
719 | * | |
720 | * The return value will be an ERR_PTR() on error or a valid pointer | |
721 | * to a struct regmap. The regmap will be automatically freed by the | |
722 | * device management code. | |
723 | */ | |
724 | #define devm_regmap_init_mmio(dev, regs, config) \ | |
725 | devm_regmap_init_mmio_clk(dev, NULL, regs, config) | |
726 | ||
727 | /** | |
728 | * devm_regmap_init_ac97(): Initialise AC'97 register map | |
729 | * | |
730 | * @ac97: Device that will be interacted with | |
731 | * @config: Configuration for register map | |
732 | * | |
733 | * The return value will be an ERR_PTR() on error or a valid pointer | |
734 | * to a struct regmap. The regmap will be automatically freed by the | |
735 | * device management code. | |
736 | */ | |
737 | #define devm_regmap_init_ac97(ac97, config) \ | |
738 | __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ | |
739 | ac97, config) | |
740 | ||
741 | void regmap_exit(struct regmap *map); | |
742 | int regmap_reinit_cache(struct regmap *map, | |
743 | const struct regmap_config *config); | |
744 | struct regmap *dev_get_regmap(struct device *dev, const char *name); | |
745 | struct device *regmap_get_device(struct regmap *map); | |
746 | int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); | |
747 | int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); | |
748 | int regmap_raw_write(struct regmap *map, unsigned int reg, | |
749 | const void *val, size_t val_len); | |
750 | int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, | |
751 | size_t val_count); | |
752 | int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, | |
753 | int num_regs); | |
754 | int regmap_multi_reg_write_bypassed(struct regmap *map, | |
755 | const struct reg_sequence *regs, | |
756 | int num_regs); | |
757 | int regmap_raw_write_async(struct regmap *map, unsigned int reg, | |
758 | const void *val, size_t val_len); | |
759 | int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); | |
760 | int regmap_raw_read(struct regmap *map, unsigned int reg, | |
761 | void *val, size_t val_len); | |
762 | int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, | |
763 | size_t val_count); | |
764 | int regmap_update_bits_base(struct regmap *map, unsigned int reg, | |
765 | unsigned int mask, unsigned int val, | |
766 | bool *change, bool async, bool force); | |
767 | int regmap_get_val_bytes(struct regmap *map); | |
768 | int regmap_get_max_register(struct regmap *map); | |
769 | int regmap_get_reg_stride(struct regmap *map); | |
770 | int regmap_async_complete(struct regmap *map); | |
771 | bool regmap_can_raw_write(struct regmap *map); | |
772 | size_t regmap_get_raw_read_max(struct regmap *map); | |
773 | size_t regmap_get_raw_write_max(struct regmap *map); | |
774 | ||
775 | int regcache_sync(struct regmap *map); | |
776 | int regcache_sync_region(struct regmap *map, unsigned int min, | |
777 | unsigned int max); | |
778 | int regcache_drop_region(struct regmap *map, unsigned int min, | |
779 | unsigned int max); | |
780 | void regcache_cache_only(struct regmap *map, bool enable); | |
781 | void regcache_cache_bypass(struct regmap *map, bool enable); | |
782 | void regcache_mark_dirty(struct regmap *map); | |
783 | ||
784 | bool regmap_check_range_table(struct regmap *map, unsigned int reg, | |
785 | const struct regmap_access_table *table); | |
786 | ||
787 | int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs, | |
788 | int num_regs); | |
789 | int regmap_parse_val(struct regmap *map, const void *buf, | |
790 | unsigned int *val); | |
791 | ||
792 | static inline bool regmap_reg_in_range(unsigned int reg, | |
793 | const struct regmap_range *range) | |
794 | { | |
795 | return reg >= range->range_min && reg <= range->range_max; | |
796 | } | |
797 | ||
798 | bool regmap_reg_in_ranges(unsigned int reg, | |
799 | const struct regmap_range *ranges, | |
800 | unsigned int nranges); | |
801 | ||
802 | /** | |
803 | * Description of an register field | |
804 | * | |
805 | * @reg: Offset of the register within the regmap bank | |
806 | * @lsb: lsb of the register field. | |
807 | * @msb: msb of the register field. | |
808 | * @id_size: port size if it has some ports | |
809 | * @id_offset: address offset for each ports | |
810 | */ | |
811 | struct reg_field { | |
812 | unsigned int reg; | |
813 | unsigned int lsb; | |
814 | unsigned int msb; | |
815 | unsigned int id_size; | |
816 | unsigned int id_offset; | |
817 | }; | |
818 | ||
819 | #define REG_FIELD(_reg, _lsb, _msb) { \ | |
820 | .reg = _reg, \ | |
821 | .lsb = _lsb, \ | |
822 | .msb = _msb, \ | |
823 | } | |
824 | ||
825 | struct regmap_field *regmap_field_alloc(struct regmap *regmap, | |
826 | struct reg_field reg_field); | |
827 | void regmap_field_free(struct regmap_field *field); | |
828 | ||
829 | struct regmap_field *devm_regmap_field_alloc(struct device *dev, | |
830 | struct regmap *regmap, struct reg_field reg_field); | |
831 | void devm_regmap_field_free(struct device *dev, struct regmap_field *field); | |
832 | ||
833 | int regmap_field_read(struct regmap_field *field, unsigned int *val); | |
834 | int regmap_field_update_bits_base(struct regmap_field *field, | |
835 | unsigned int mask, unsigned int val, | |
836 | bool *change, bool async, bool force); | |
837 | int regmap_fields_read(struct regmap_field *field, unsigned int id, | |
838 | unsigned int *val); | |
839 | int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, | |
840 | unsigned int mask, unsigned int val, | |
841 | bool *change, bool async, bool force); | |
842 | ||
843 | /** | |
844 | * Description of an IRQ for the generic regmap irq_chip. | |
845 | * | |
846 | * @reg_offset: Offset of the status/mask register within the bank | |
847 | * @mask: Mask used to flag/control the register. | |
848 | * @type_reg_offset: Offset register for the irq type setting. | |
849 | * @type_rising_mask: Mask bit to configure RISING type irq. | |
850 | * @type_falling_mask: Mask bit to configure FALLING type irq. | |
851 | */ | |
852 | struct regmap_irq { | |
853 | unsigned int reg_offset; | |
854 | unsigned int mask; | |
855 | unsigned int type_reg_offset; | |
856 | unsigned int type_rising_mask; | |
857 | unsigned int type_falling_mask; | |
858 | }; | |
859 | ||
860 | #define REGMAP_IRQ_REG(_irq, _off, _mask) \ | |
861 | [_irq] = { .reg_offset = (_off), .mask = (_mask) } | |
862 | ||
863 | /** | |
864 | * Description of a generic regmap irq_chip. This is not intended to | |
865 | * handle every possible interrupt controller, but it should handle a | |
866 | * substantial proportion of those that are found in the wild. | |
867 | * | |
868 | * @name: Descriptive name for IRQ controller. | |
869 | * | |
870 | * @status_base: Base status register address. | |
871 | * @mask_base: Base mask register address. | |
872 | * @unmask_base: Base unmask register address. for chips who have | |
873 | * separate mask and unmask registers | |
874 | * @ack_base: Base ack address. If zero then the chip is clear on read. | |
875 | * Using zero value is possible with @use_ack bit. | |
876 | * @wake_base: Base address for wake enables. If zero unsupported. | |
877 | * @type_base: Base address for irq type. If zero unsupported. | |
878 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. | |
879 | * @init_ack_masked: Ack all masked interrupts once during initalization. | |
880 | * @mask_invert: Inverted mask register: cleared bits are masked out. | |
881 | * @use_ack: Use @ack register even if it is zero. | |
882 | * @ack_invert: Inverted ack register: cleared bits for ack. | |
883 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. | |
884 | * @type_invert: Invert the type flags. | |
885 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. | |
886 | * | |
887 | * @num_regs: Number of registers in each control bank. | |
888 | * @irqs: Descriptors for individual IRQs. Interrupt numbers are | |
889 | * assigned based on the index in the array of the interrupt. | |
890 | * @num_irqs: Number of descriptors. | |
891 | * @num_type_reg: Number of type registers. | |
892 | * @type_reg_stride: Stride to use for chips where type registers are not | |
893 | * contiguous. | |
894 | * @handle_pre_irq: Driver specific callback to handle interrupt from device | |
895 | * before regmap_irq_handler process the interrupts. | |
896 | * @handle_post_irq: Driver specific callback to handle interrupt from device | |
897 | * after handling the interrupts in regmap_irq_handler(). | |
898 | * @irq_drv_data: Driver specific IRQ data which is passed as parameter when | |
899 | * driver specific pre/post interrupt handler is called. | |
900 | */ | |
901 | struct regmap_irq_chip { | |
902 | const char *name; | |
903 | ||
904 | unsigned int status_base; | |
905 | unsigned int mask_base; | |
906 | unsigned int unmask_base; | |
907 | unsigned int ack_base; | |
908 | unsigned int wake_base; | |
909 | unsigned int type_base; | |
910 | unsigned int irq_reg_stride; | |
911 | bool init_ack_masked:1; | |
912 | bool mask_invert:1; | |
913 | bool use_ack:1; | |
914 | bool ack_invert:1; | |
915 | bool wake_invert:1; | |
916 | bool runtime_pm:1; | |
917 | bool type_invert:1; | |
918 | ||
919 | int num_regs; | |
920 | ||
921 | const struct regmap_irq *irqs; | |
922 | int num_irqs; | |
923 | ||
924 | int num_type_reg; | |
925 | unsigned int type_reg_stride; | |
926 | ||
927 | int (*handle_pre_irq)(void *irq_drv_data); | |
928 | int (*handle_post_irq)(void *irq_drv_data); | |
929 | void *irq_drv_data; | |
930 | }; | |
931 | ||
932 | struct regmap_irq_chip_data; | |
933 | ||
934 | int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, | |
935 | int irq_base, const struct regmap_irq_chip *chip, | |
936 | struct regmap_irq_chip_data **data); | |
937 | void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); | |
938 | ||
939 | int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq, | |
940 | int irq_flags, int irq_base, | |
941 | const struct regmap_irq_chip *chip, | |
942 | struct regmap_irq_chip_data **data); | |
943 | void devm_regmap_del_irq_chip(struct device *dev, int irq, | |
944 | struct regmap_irq_chip_data *data); | |
945 | ||
946 | int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); | |
947 | int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); | |
948 | struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); | |
949 | ||
950 | #else | |
951 | ||
952 | /* | |
953 | * These stubs should only ever be called by generic code which has | |
954 | * regmap based facilities, if they ever get called at runtime | |
955 | * something is going wrong and something probably needs to select | |
956 | * REGMAP. | |
957 | */ | |
958 | ||
959 | static inline int regmap_write(struct regmap *map, unsigned int reg, | |
960 | unsigned int val) | |
961 | { | |
962 | WARN_ONCE(1, "regmap API is disabled"); | |
963 | return -EINVAL; | |
964 | } | |
965 | ||
966 | static inline int regmap_write_async(struct regmap *map, unsigned int reg, | |
967 | unsigned int val) | |
968 | { | |
969 | WARN_ONCE(1, "regmap API is disabled"); | |
970 | return -EINVAL; | |
971 | } | |
972 | ||
973 | static inline int regmap_raw_write(struct regmap *map, unsigned int reg, | |
974 | const void *val, size_t val_len) | |
975 | { | |
976 | WARN_ONCE(1, "regmap API is disabled"); | |
977 | return -EINVAL; | |
978 | } | |
979 | ||
980 | static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, | |
981 | const void *val, size_t val_len) | |
982 | { | |
983 | WARN_ONCE(1, "regmap API is disabled"); | |
984 | return -EINVAL; | |
985 | } | |
986 | ||
987 | static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, | |
988 | const void *val, size_t val_count) | |
989 | { | |
990 | WARN_ONCE(1, "regmap API is disabled"); | |
991 | return -EINVAL; | |
992 | } | |
993 | ||
994 | static inline int regmap_read(struct regmap *map, unsigned int reg, | |
995 | unsigned int *val) | |
996 | { | |
997 | WARN_ONCE(1, "regmap API is disabled"); | |
998 | return -EINVAL; | |
999 | } | |
1000 | ||
1001 | static inline int regmap_raw_read(struct regmap *map, unsigned int reg, | |
1002 | void *val, size_t val_len) | |
1003 | { | |
1004 | WARN_ONCE(1, "regmap API is disabled"); | |
1005 | return -EINVAL; | |
1006 | } | |
1007 | ||
1008 | static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, | |
1009 | void *val, size_t val_count) | |
1010 | { | |
1011 | WARN_ONCE(1, "regmap API is disabled"); | |
1012 | return -EINVAL; | |
1013 | } | |
1014 | ||
1015 | static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, | |
1016 | unsigned int mask, unsigned int val, | |
1017 | bool *change, bool async, bool force) | |
1018 | { | |
1019 | WARN_ONCE(1, "regmap API is disabled"); | |
1020 | return -EINVAL; | |
1021 | } | |
1022 | ||
1023 | static inline int regmap_field_update_bits_base(struct regmap_field *field, | |
1024 | unsigned int mask, unsigned int val, | |
1025 | bool *change, bool async, bool force) | |
1026 | { | |
1027 | WARN_ONCE(1, "regmap API is disabled"); | |
1028 | return -EINVAL; | |
1029 | } | |
1030 | ||
1031 | static inline int regmap_fields_update_bits_base(struct regmap_field *field, | |
1032 | unsigned int id, | |
1033 | unsigned int mask, unsigned int val, | |
1034 | bool *change, bool async, bool force) | |
1035 | { | |
1036 | WARN_ONCE(1, "regmap API is disabled"); | |
1037 | return -EINVAL; | |
1038 | } | |
1039 | ||
1040 | static inline int regmap_get_val_bytes(struct regmap *map) | |
1041 | { | |
1042 | WARN_ONCE(1, "regmap API is disabled"); | |
1043 | return -EINVAL; | |
1044 | } | |
1045 | ||
1046 | static inline int regmap_get_max_register(struct regmap *map) | |
1047 | { | |
1048 | WARN_ONCE(1, "regmap API is disabled"); | |
1049 | return -EINVAL; | |
1050 | } | |
1051 | ||
1052 | static inline int regmap_get_reg_stride(struct regmap *map) | |
1053 | { | |
1054 | WARN_ONCE(1, "regmap API is disabled"); | |
1055 | return -EINVAL; | |
1056 | } | |
1057 | ||
1058 | static inline int regcache_sync(struct regmap *map) | |
1059 | { | |
1060 | WARN_ONCE(1, "regmap API is disabled"); | |
1061 | return -EINVAL; | |
1062 | } | |
1063 | ||
1064 | static inline int regcache_sync_region(struct regmap *map, unsigned int min, | |
1065 | unsigned int max) | |
1066 | { | |
1067 | WARN_ONCE(1, "regmap API is disabled"); | |
1068 | return -EINVAL; | |
1069 | } | |
1070 | ||
1071 | static inline int regcache_drop_region(struct regmap *map, unsigned int min, | |
1072 | unsigned int max) | |
1073 | { | |
1074 | WARN_ONCE(1, "regmap API is disabled"); | |
1075 | return -EINVAL; | |
1076 | } | |
1077 | ||
1078 | static inline void regcache_cache_only(struct regmap *map, bool enable) | |
1079 | { | |
1080 | WARN_ONCE(1, "regmap API is disabled"); | |
1081 | } | |
1082 | ||
1083 | static inline void regcache_cache_bypass(struct regmap *map, bool enable) | |
1084 | { | |
1085 | WARN_ONCE(1, "regmap API is disabled"); | |
1086 | } | |
1087 | ||
1088 | static inline void regcache_mark_dirty(struct regmap *map) | |
1089 | { | |
1090 | WARN_ONCE(1, "regmap API is disabled"); | |
1091 | } | |
1092 | ||
1093 | static inline void regmap_async_complete(struct regmap *map) | |
1094 | { | |
1095 | WARN_ONCE(1, "regmap API is disabled"); | |
1096 | } | |
1097 | ||
1098 | static inline int regmap_register_patch(struct regmap *map, | |
1099 | const struct reg_sequence *regs, | |
1100 | int num_regs) | |
1101 | { | |
1102 | WARN_ONCE(1, "regmap API is disabled"); | |
1103 | return -EINVAL; | |
1104 | } | |
1105 | ||
1106 | static inline int regmap_parse_val(struct regmap *map, const void *buf, | |
1107 | unsigned int *val) | |
1108 | { | |
1109 | WARN_ONCE(1, "regmap API is disabled"); | |
1110 | return -EINVAL; | |
1111 | } | |
1112 | ||
1113 | static inline struct regmap *dev_get_regmap(struct device *dev, | |
1114 | const char *name) | |
1115 | { | |
1116 | return NULL; | |
1117 | } | |
1118 | ||
1119 | static inline struct device *regmap_get_device(struct regmap *map) | |
1120 | { | |
1121 | WARN_ONCE(1, "regmap API is disabled"); | |
1122 | return NULL; | |
1123 | } | |
1124 | ||
1125 | #endif | |
1126 | ||
1127 | #endif |