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b83a313b MB |
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 | ||
b83a313b | 16 | #include <linux/list.h> |
6863ca62 | 17 | #include <linux/rbtree.h> |
f15cd6d9 | 18 | #include <linux/ktime.h> |
adf08d48 | 19 | #include <linux/delay.h> |
49ccc142 | 20 | #include <linux/err.h> |
3f0fa9a8 | 21 | #include <linux/bug.h> |
3cfe7a74 | 22 | #include <linux/lockdep.h> |
b83a313b | 23 | |
de477254 | 24 | struct module; |
31895662 | 25 | struct clk; |
313162d0 | 26 | struct device; |
9943fa30 | 27 | struct i2c_client; |
90f790d2 | 28 | struct irq_domain; |
7d6f7fb0 | 29 | struct slim_device; |
a676f083 | 30 | struct spi_device; |
a01779f8 | 31 | struct spmi_device; |
b83d2ff0 | 32 | struct regmap; |
6863ca62 | 33 | struct regmap_range_cfg; |
67252287 | 34 | struct regmap_field; |
22853223 | 35 | struct snd_ac97; |
7c22ce6e | 36 | struct sdw_slave; |
9943fa30 | 37 | |
9fabe24e DP |
38 | /* An enum of all the supported cache types */ |
39 | enum regcache_type { | |
40 | REGCACHE_NONE, | |
28644c80 | 41 | REGCACHE_RBTREE, |
2ac902ce MB |
42 | REGCACHE_COMPRESSED, |
43 | REGCACHE_FLAT, | |
9fabe24e DP |
44 | }; |
45 | ||
bd20eb54 | 46 | /** |
2cf8e2df | 47 | * struct reg_default - Default value for a register. |
bd20eb54 MB |
48 | * |
49 | * @reg: Register address. | |
50 | * @def: Register default value. | |
2cf8e2df CK |
51 | * |
52 | * We use an array of structs rather than a simple array as many modern devices | |
53 | * have very sparse register maps. | |
bd20eb54 MB |
54 | */ |
55 | struct reg_default { | |
56 | unsigned int reg; | |
57 | unsigned int def; | |
58 | }; | |
59 | ||
8019ff6c | 60 | /** |
2cf8e2df | 61 | * struct reg_sequence - An individual write from a sequence of writes. |
8019ff6c NP |
62 | * |
63 | * @reg: Register address. | |
64 | * @def: Register value. | |
2de9d600 | 65 | * @delay_us: Delay to be applied after the register write in microseconds |
2cf8e2df CK |
66 | * |
67 | * Register/value pairs for sequences of writes with an optional delay in | |
68 | * microseconds to be applied after each write. | |
8019ff6c NP |
69 | */ |
70 | struct reg_sequence { | |
71 | unsigned int reg; | |
72 | unsigned int def; | |
2de9d600 | 73 | unsigned int delay_us; |
8019ff6c NP |
74 | }; |
75 | ||
ca7a9446 KM |
76 | #define regmap_update_bits(map, reg, mask, val) \ |
77 | regmap_update_bits_base(map, reg, mask, val, NULL, false, false) | |
30ed9cb7 KM |
78 | #define regmap_update_bits_async(map, reg, mask, val)\ |
79 | regmap_update_bits_base(map, reg, mask, val, NULL, true, false) | |
98c2dc48 KM |
80 | #define regmap_update_bits_check(map, reg, mask, val, change)\ |
81 | regmap_update_bits_base(map, reg, mask, val, change, false, false) | |
89d8d4b8 KM |
82 | #define regmap_update_bits_check_async(map, reg, mask, val, change)\ |
83 | regmap_update_bits_base(map, reg, mask, val, change, true, false) | |
ca7a9446 | 84 | |
b821957a KM |
85 | #define regmap_write_bits(map, reg, mask, val) \ |
86 | regmap_update_bits_base(map, reg, mask, val, NULL, false, true) | |
87 | ||
3674124b KM |
88 | #define regmap_field_write(field, val) \ |
89 | regmap_field_update_bits_base(field, ~0, val, NULL, false, false) | |
489061bb KM |
90 | #define regmap_field_force_write(field, val) \ |
91 | regmap_field_update_bits_base(field, ~0, val, NULL, false, true) | |
721ed64d KM |
92 | #define regmap_field_update_bits(field, mask, val)\ |
93 | regmap_field_update_bits_base(field, mask, val, NULL, false, false) | |
489061bb KM |
94 | #define regmap_field_force_update_bits(field, mask, val) \ |
95 | regmap_field_update_bits_base(field, mask, val, NULL, false, true) | |
3674124b | 96 | |
bbf2c46f KM |
97 | #define regmap_fields_write(field, id, val) \ |
98 | regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, false) | |
e6ef243f KM |
99 | #define regmap_fields_force_write(field, id, val) \ |
100 | regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, true) | |
48138609 KM |
101 | #define regmap_fields_update_bits(field, id, mask, val)\ |
102 | regmap_fields_update_bits_base(field, id, mask, val, NULL, false, false) | |
e6ef243f KM |
103 | #define regmap_fields_force_update_bits(field, id, mask, val) \ |
104 | regmap_fields_update_bits_base(field, id, mask, val, NULL, false, true) | |
bbf2c46f | 105 | |
08188ba8 PZ |
106 | /** |
107 | * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs | |
2cf8e2df | 108 | * |
08188ba8 PZ |
109 | * @map: Regmap to read from |
110 | * @addr: Address to poll | |
111 | * @val: Unsigned integer variable to read the value into | |
112 | * @cond: Break condition (usually involving @val) | |
113 | * @sleep_us: Maximum time to sleep between reads in us (0 | |
114 | * tight-loops). Should be less than ~20ms since usleep_range | |
115 | * is used (see Documentation/timers/timers-howto.txt). | |
116 | * @timeout_us: Timeout in us, 0 means never timeout | |
117 | * | |
118 | * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read | |
119 | * error return value in case of a error read. In the two former cases, | |
120 | * the last read value at @addr is stored in @val. Must not be called | |
121 | * from atomic context if sleep_us or timeout_us are used. | |
122 | * | |
123 | * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. | |
124 | */ | |
125 | #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \ | |
126 | ({ \ | |
1b0c22e4 AB |
127 | u64 __timeout_us = (timeout_us); \ |
128 | unsigned long __sleep_us = (sleep_us); \ | |
129 | ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ | |
780b1350 | 130 | int __ret; \ |
1b0c22e4 | 131 | might_sleep_if(__sleep_us); \ |
08188ba8 | 132 | for (;;) { \ |
780b1350 RS |
133 | __ret = regmap_read((map), (addr), &(val)); \ |
134 | if (__ret) \ | |
08188ba8 PZ |
135 | break; \ |
136 | if (cond) \ | |
137 | break; \ | |
1b0c22e4 | 138 | if ((__timeout_us) && \ |
780b1350 RS |
139 | ktime_compare(ktime_get(), __timeout) > 0) { \ |
140 | __ret = regmap_read((map), (addr), &(val)); \ | |
08188ba8 PZ |
141 | break; \ |
142 | } \ | |
1b0c22e4 AB |
143 | if (__sleep_us) \ |
144 | usleep_range((__sleep_us >> 2) + 1, __sleep_us); \ | |
08188ba8 | 145 | } \ |
780b1350 | 146 | __ret ?: ((cond) ? 0 : -ETIMEDOUT); \ |
08188ba8 PZ |
147 | }) |
148 | ||
667063ac CYT |
149 | /** |
150 | * regmap_field_read_poll_timeout - Poll until a condition is met or timeout | |
151 | * | |
152 | * @field: Regmap field to read from | |
153 | * @val: Unsigned integer variable to read the value into | |
154 | * @cond: Break condition (usually involving @val) | |
155 | * @sleep_us: Maximum time to sleep between reads in us (0 | |
156 | * tight-loops). Should be less than ~20ms since usleep_range | |
157 | * is used (see Documentation/timers/timers-howto.txt). | |
158 | * @timeout_us: Timeout in us, 0 means never timeout | |
159 | * | |
160 | * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read | |
161 | * error return value in case of a error read. In the two former cases, | |
162 | * the last read value at @addr is stored in @val. Must not be called | |
163 | * from atomic context if sleep_us or timeout_us are used. | |
164 | * | |
165 | * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. | |
166 | */ | |
167 | #define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \ | |
168 | ({ \ | |
1b0c22e4 AB |
169 | u64 __timeout_us = (timeout_us); \ |
170 | unsigned long __sleep_us = (sleep_us); \ | |
171 | ktime_t timeout = ktime_add_us(ktime_get(), __timeout_us); \ | |
667063ac | 172 | int pollret; \ |
1b0c22e4 | 173 | might_sleep_if(__sleep_us); \ |
667063ac CYT |
174 | for (;;) { \ |
175 | pollret = regmap_field_read((field), &(val)); \ | |
176 | if (pollret) \ | |
177 | break; \ | |
178 | if (cond) \ | |
179 | break; \ | |
1b0c22e4 | 180 | if (__timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \ |
667063ac CYT |
181 | pollret = regmap_field_read((field), &(val)); \ |
182 | break; \ | |
183 | } \ | |
1b0c22e4 AB |
184 | if (__sleep_us) \ |
185 | usleep_range((__sleep_us >> 2) + 1, __sleep_us); \ | |
667063ac CYT |
186 | } \ |
187 | pollret ?: ((cond) ? 0 : -ETIMEDOUT); \ | |
188 | }) | |
189 | ||
b83d2ff0 MB |
190 | #ifdef CONFIG_REGMAP |
191 | ||
141eba2e SW |
192 | enum regmap_endian { |
193 | /* Unspecified -> 0 -> Backwards compatible default */ | |
194 | REGMAP_ENDIAN_DEFAULT = 0, | |
195 | REGMAP_ENDIAN_BIG, | |
196 | REGMAP_ENDIAN_LITTLE, | |
197 | REGMAP_ENDIAN_NATIVE, | |
198 | }; | |
199 | ||
76aad392 | 200 | /** |
2cf8e2df CK |
201 | * struct regmap_range - A register range, used for access related checks |
202 | * (readable/writeable/volatile/precious checks) | |
76aad392 DC |
203 | * |
204 | * @range_min: address of first register | |
205 | * @range_max: address of last register | |
206 | */ | |
207 | struct regmap_range { | |
208 | unsigned int range_min; | |
209 | unsigned int range_max; | |
210 | }; | |
211 | ||
6112fe60 LD |
212 | #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } |
213 | ||
2cf8e2df CK |
214 | /** |
215 | * struct regmap_access_table - A table of register ranges for access checks | |
76aad392 DC |
216 | * |
217 | * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" | |
218 | * @n_yes_ranges: size of the above array | |
219 | * @no_ranges: pointer to an array of regmap ranges used as "no ranges" | |
220 | * @n_no_ranges: size of the above array | |
2cf8e2df CK |
221 | * |
222 | * A table of ranges including some yes ranges and some no ranges. | |
223 | * If a register belongs to a no_range, the corresponding check function | |
224 | * will return false. If a register belongs to a yes range, the corresponding | |
225 | * check function will return true. "no_ranges" are searched first. | |
76aad392 DC |
226 | */ |
227 | struct regmap_access_table { | |
228 | const struct regmap_range *yes_ranges; | |
229 | unsigned int n_yes_ranges; | |
230 | const struct regmap_range *no_ranges; | |
231 | unsigned int n_no_ranges; | |
232 | }; | |
233 | ||
0d4529c5 DC |
234 | typedef void (*regmap_lock)(void *); |
235 | typedef void (*regmap_unlock)(void *); | |
236 | ||
dd898b20 | 237 | /** |
2cf8e2df | 238 | * struct regmap_config - Configuration for the register map of a device. |
dd898b20 | 239 | * |
d3c242e1 SW |
240 | * @name: Optional name of the regmap. Useful when a device has multiple |
241 | * register regions. | |
242 | * | |
dd898b20 | 243 | * @reg_bits: Number of bits in a register address, mandatory. |
f01ee60f SW |
244 | * @reg_stride: The register address stride. Valid register addresses are a |
245 | * multiple of this value. If set to 0, a value of 1 will be | |
246 | * used. | |
82159ba8 | 247 | * @pad_bits: Number of bits of padding between register and value. |
dd898b20 | 248 | * @val_bits: Number of bits in a register value, mandatory. |
2e2ae66d | 249 | * |
3566cc9d | 250 | * @writeable_reg: Optional callback returning true if the register |
76aad392 DC |
251 | * can be written to. If this field is NULL but wr_table |
252 | * (see below) is not, the check is performed on such table | |
253 | * (a register is writeable if it belongs to one of the ranges | |
254 | * specified by wr_table). | |
3566cc9d | 255 | * @readable_reg: Optional callback returning true if the register |
76aad392 DC |
256 | * can be read from. If this field is NULL but rd_table |
257 | * (see below) is not, the check is performed on such table | |
258 | * (a register is readable if it belongs to one of the ranges | |
259 | * specified by rd_table). | |
3566cc9d | 260 | * @volatile_reg: Optional callback returning true if the register |
76aad392 DC |
261 | * value can't be cached. If this field is NULL but |
262 | * volatile_table (see below) is not, the check is performed on | |
263 | * such table (a register is volatile if it belongs to one of | |
264 | * the ranges specified by volatile_table). | |
bdc39644 | 265 | * @precious_reg: Optional callback returning true if the register |
76aad392 | 266 | * should not be read outside of a call from the driver |
bdc39644 | 267 | * (e.g., a clear on read interrupt status register). If this |
76aad392 DC |
268 | * field is NULL but precious_table (see below) is not, the |
269 | * check is performed on such table (a register is precious if | |
270 | * it belongs to one of the ranges specified by precious_table). | |
cdf6b11d BW |
271 | * @writeable_noinc_reg: Optional callback returning true if the register |
272 | * supports multiple write operations without incrementing | |
273 | * the register number. If this field is NULL but | |
274 | * wr_noinc_table (see below) is not, the check is | |
275 | * performed on such table (a register is no increment | |
276 | * writeable if it belongs to one of the ranges specified | |
277 | * by wr_noinc_table). | |
74fe7b55 CDL |
278 | * @readable_noinc_reg: Optional callback returning true if the register |
279 | * supports multiple read operations without incrementing | |
280 | * the register number. If this field is NULL but | |
281 | * rd_noinc_table (see below) is not, the check is | |
282 | * performed on such table (a register is no increment | |
283 | * readable if it belongs to one of the ranges specified | |
284 | * by rd_noinc_table). | |
c9b41fcf BG |
285 | * @disable_locking: This regmap is either protected by external means or |
286 | * is guaranteed not be be accessed from multiple threads. | |
287 | * Don't use any locking mechanisms. | |
76aad392 DC |
288 | * @lock: Optional lock callback (overrides regmap's default lock |
289 | * function, based on spinlock or mutex). | |
290 | * @unlock: As above for unlocking. | |
291 | * @lock_arg: this field is passed as the only argument of lock/unlock | |
292 | * functions (ignored in case regular lock/unlock functions | |
293 | * are not overridden). | |
d2a5884a AS |
294 | * @reg_read: Optional callback that if filled will be used to perform |
295 | * all the reads from the registers. Should only be provided for | |
bdc39644 LP |
296 | * devices whose read operation cannot be represented as a simple |
297 | * read operation on a bus such as SPI, I2C, etc. Most of the | |
298 | * devices do not need this. | |
d2a5884a AS |
299 | * @reg_write: Same as above for writing. |
300 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex | |
301 | * to perform locking. This field is ignored if custom lock/unlock | |
302 | * functions are used (see fields lock/unlock of struct regmap_config). | |
303 | * This field is a duplicate of a similar file in | |
304 | * 'struct regmap_bus' and serves exact same purpose. | |
305 | * Use it only for "no-bus" cases. | |
b429fab4 | 306 | * @max_register: Optional, specifies the maximum valid register address. |
76aad392 DC |
307 | * @wr_table: Optional, points to a struct regmap_access_table specifying |
308 | * valid ranges for write access. | |
309 | * @rd_table: As above, for read access. | |
310 | * @volatile_table: As above, for volatile registers. | |
311 | * @precious_table: As above, for precious registers. | |
cdf6b11d | 312 | * @wr_noinc_table: As above, for no increment writeable registers. |
74fe7b55 | 313 | * @rd_noinc_table: As above, for no increment readable registers. |
bd20eb54 MB |
314 | * @reg_defaults: Power on reset values for registers (for use with |
315 | * register cache support). | |
316 | * @num_reg_defaults: Number of elements in reg_defaults. | |
6f306441 | 317 | * |
f50e38c9 | 318 | * @read_flag_mask: Mask to be set in the top bytes of the register when doing |
6f306441 | 319 | * a read. |
f50e38c9 | 320 | * @write_flag_mask: Mask to be set in the top bytes of the register when doing |
6f306441 | 321 | * a write. If both read_flag_mask and write_flag_mask are |
9bf485c9 AD |
322 | * empty and zero_flag_mask is not set the regmap_bus default |
323 | * masks are used. | |
324 | * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even | |
325 | * if they are both empty. | |
1c96a2f6 DF |
326 | * @use_single_read: If set, converts the bulk read operation into a series of |
327 | * single read operations. This is useful for a device that | |
328 | * does not support bulk read. | |
329 | * @use_single_write: If set, converts the bulk write operation into a series of | |
330 | * single write operations. This is useful for a device that | |
331 | * does not support bulk write. | |
e894c3f4 OAO |
332 | * @can_multi_write: If set, the device supports the multi write mode of bulk |
333 | * write operations, if clear multi write requests will be | |
334 | * split into individual write operations | |
9fabe24e DP |
335 | * |
336 | * @cache_type: The actual cache type. | |
337 | * @reg_defaults_raw: Power on reset values for registers (for use with | |
338 | * register cache support). | |
339 | * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. | |
141eba2e SW |
340 | * @reg_format_endian: Endianness for formatted register addresses. If this is |
341 | * DEFAULT, the @reg_format_endian_default value from the | |
342 | * regmap bus is used. | |
343 | * @val_format_endian: Endianness for formatted register values. If this is | |
344 | * DEFAULT, the @reg_format_endian_default value from the | |
345 | * regmap bus is used. | |
6863ca62 KG |
346 | * |
347 | * @ranges: Array of configuration entries for virtual address ranges. | |
348 | * @num_ranges: Number of range configuration entries. | |
a4887813 | 349 | * @use_hwlock: Indicate if a hardware spinlock should be used. |
8698b936 BW |
350 | * @hwlock_id: Specify the hardware spinlock id. |
351 | * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE, | |
352 | * HWLOCK_IRQ or 0. | |
dd898b20 | 353 | */ |
b83a313b | 354 | struct regmap_config { |
d3c242e1 SW |
355 | const char *name; |
356 | ||
b83a313b | 357 | int reg_bits; |
f01ee60f | 358 | int reg_stride; |
82159ba8 | 359 | int pad_bits; |
b83a313b | 360 | int val_bits; |
2e2ae66d | 361 | |
2e2ae66d MB |
362 | bool (*writeable_reg)(struct device *dev, unsigned int reg); |
363 | bool (*readable_reg)(struct device *dev, unsigned int reg); | |
364 | bool (*volatile_reg)(struct device *dev, unsigned int reg); | |
18694886 | 365 | bool (*precious_reg)(struct device *dev, unsigned int reg); |
cdf6b11d | 366 | bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg); |
74fe7b55 | 367 | bool (*readable_noinc_reg)(struct device *dev, unsigned int reg); |
c9b41fcf BG |
368 | |
369 | bool disable_locking; | |
0d4529c5 DC |
370 | regmap_lock lock; |
371 | regmap_unlock unlock; | |
372 | void *lock_arg; | |
bd20eb54 | 373 | |
d2a5884a AS |
374 | int (*reg_read)(void *context, unsigned int reg, unsigned int *val); |
375 | int (*reg_write)(void *context, unsigned int reg, unsigned int val); | |
376 | ||
377 | bool fast_io; | |
378 | ||
bd20eb54 | 379 | unsigned int max_register; |
76aad392 DC |
380 | const struct regmap_access_table *wr_table; |
381 | const struct regmap_access_table *rd_table; | |
382 | const struct regmap_access_table *volatile_table; | |
383 | const struct regmap_access_table *precious_table; | |
cdf6b11d | 384 | const struct regmap_access_table *wr_noinc_table; |
74fe7b55 | 385 | const struct regmap_access_table *rd_noinc_table; |
720e4616 | 386 | const struct reg_default *reg_defaults; |
9fabe24e DP |
387 | unsigned int num_reg_defaults; |
388 | enum regcache_type cache_type; | |
389 | const void *reg_defaults_raw; | |
390 | unsigned int num_reg_defaults_raw; | |
6f306441 | 391 | |
f50e38c9 TL |
392 | unsigned long read_flag_mask; |
393 | unsigned long write_flag_mask; | |
9bf485c9 | 394 | bool zero_flag_mask; |
2e33caf1 | 395 | |
1c96a2f6 DF |
396 | bool use_single_read; |
397 | bool use_single_write; | |
e894c3f4 | 398 | bool can_multi_write; |
141eba2e SW |
399 | |
400 | enum regmap_endian reg_format_endian; | |
401 | enum regmap_endian val_format_endian; | |
38e23194 | 402 | |
6863ca62 | 403 | const struct regmap_range_cfg *ranges; |
e3549cd0 | 404 | unsigned int num_ranges; |
8698b936 | 405 | |
a4887813 | 406 | bool use_hwlock; |
8698b936 BW |
407 | unsigned int hwlock_id; |
408 | unsigned int hwlock_mode; | |
6863ca62 KG |
409 | }; |
410 | ||
411 | /** | |
2cf8e2df CK |
412 | * struct regmap_range_cfg - Configuration for indirectly accessed or paged |
413 | * registers. | |
6863ca62 | 414 | * |
d058bb49 MB |
415 | * @name: Descriptive name for diagnostics |
416 | * | |
6863ca62 KG |
417 | * @range_min: Address of the lowest register address in virtual range. |
418 | * @range_max: Address of the highest register in virtual range. | |
419 | * | |
2cf8e2df CK |
420 | * @selector_reg: Register with selector field. |
421 | * @selector_mask: Bit shift for selector value. | |
422 | * @selector_shift: Bit mask for selector value. | |
6863ca62 KG |
423 | * |
424 | * @window_start: Address of first (lowest) register in data window. | |
425 | * @window_len: Number of registers in data window. | |
2cf8e2df CK |
426 | * |
427 | * Registers, mapped to this virtual range, are accessed in two steps: | |
428 | * 1. page selector register update; | |
429 | * 2. access through data window registers. | |
6863ca62 KG |
430 | */ |
431 | struct regmap_range_cfg { | |
d058bb49 MB |
432 | const char *name; |
433 | ||
6863ca62 KG |
434 | /* Registers of virtual address range */ |
435 | unsigned int range_min; | |
436 | unsigned int range_max; | |
437 | ||
438 | /* Page selector for indirect addressing */ | |
439 | unsigned int selector_reg; | |
440 | unsigned int selector_mask; | |
441 | int selector_shift; | |
442 | ||
443 | /* Data window (per each page) */ | |
444 | unsigned int window_start; | |
445 | unsigned int window_len; | |
b83a313b MB |
446 | }; |
447 | ||
0d509f2b MB |
448 | struct regmap_async; |
449 | ||
0135bbcc | 450 | typedef int (*regmap_hw_write)(void *context, const void *data, |
b83a313b | 451 | size_t count); |
0135bbcc | 452 | typedef int (*regmap_hw_gather_write)(void *context, |
b83a313b MB |
453 | const void *reg, size_t reg_len, |
454 | const void *val, size_t val_len); | |
0d509f2b MB |
455 | typedef int (*regmap_hw_async_write)(void *context, |
456 | const void *reg, size_t reg_len, | |
457 | const void *val, size_t val_len, | |
458 | struct regmap_async *async); | |
0135bbcc | 459 | typedef int (*regmap_hw_read)(void *context, |
b83a313b MB |
460 | const void *reg_buf, size_t reg_size, |
461 | void *val_buf, size_t val_size); | |
3ac17037 BB |
462 | typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, |
463 | unsigned int *val); | |
464 | typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, | |
465 | unsigned int val); | |
77792b11 JR |
466 | typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, |
467 | unsigned int mask, unsigned int val); | |
0d509f2b | 468 | typedef struct regmap_async *(*regmap_hw_async_alloc)(void); |
0135bbcc | 469 | typedef void (*regmap_hw_free_context)(void *context); |
b83a313b MB |
470 | |
471 | /** | |
2cf8e2df CK |
472 | * struct regmap_bus - Description of a hardware bus for the register map |
473 | * infrastructure. | |
b83a313b | 474 | * |
bacdbe07 | 475 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex |
0d4529c5 DC |
476 | * to perform locking. This field is ignored if custom lock/unlock |
477 | * functions are used (see fields lock/unlock of | |
478 | * struct regmap_config). | |
b83a313b MB |
479 | * @write: Write operation. |
480 | * @gather_write: Write operation with split register/value, return -ENOTSUPP | |
481 | * if not implemented on a given device. | |
0d509f2b MB |
482 | * @async_write: Write operation which completes asynchronously, optional and |
483 | * must serialise with respect to non-async I/O. | |
c5f58f2d MP |
484 | * @reg_write: Write a single register value to the given register address. This |
485 | * write operation has to complete when returning from the function. | |
2cf8e2df CK |
486 | * @reg_update_bits: Update bits operation to be used against volatile |
487 | * registers, intended for devices supporting some mechanism | |
488 | * for setting clearing bits without having to | |
489 | * read/modify/write. | |
b83a313b MB |
490 | * @read: Read operation. Data is returned in the buffer used to transmit |
491 | * data. | |
c5f58f2d MP |
492 | * @reg_read: Read a single register value from a given register address. |
493 | * @free_context: Free context. | |
0d509f2b | 494 | * @async_alloc: Allocate a regmap_async() structure. |
b83a313b MB |
495 | * @read_flag_mask: Mask to be set in the top byte of the register when doing |
496 | * a read. | |
141eba2e SW |
497 | * @reg_format_endian_default: Default endianness for formatted register |
498 | * addresses. Used when the regmap_config specifies DEFAULT. If this is | |
499 | * DEFAULT, BIG is assumed. | |
500 | * @val_format_endian_default: Default endianness for formatted register | |
501 | * values. Used when the regmap_config specifies DEFAULT. If this is | |
502 | * DEFAULT, BIG is assumed. | |
adaac459 MP |
503 | * @max_raw_read: Max raw read size that can be used on the bus. |
504 | * @max_raw_write: Max raw write size that can be used on the bus. | |
b83a313b MB |
505 | */ |
506 | struct regmap_bus { | |
bacdbe07 | 507 | bool fast_io; |
b83a313b MB |
508 | regmap_hw_write write; |
509 | regmap_hw_gather_write gather_write; | |
0d509f2b | 510 | regmap_hw_async_write async_write; |
3ac17037 | 511 | regmap_hw_reg_write reg_write; |
77792b11 | 512 | regmap_hw_reg_update_bits reg_update_bits; |
b83a313b | 513 | regmap_hw_read read; |
3ac17037 | 514 | regmap_hw_reg_read reg_read; |
0135bbcc | 515 | regmap_hw_free_context free_context; |
0d509f2b | 516 | regmap_hw_async_alloc async_alloc; |
b83a313b | 517 | u8 read_flag_mask; |
141eba2e SW |
518 | enum regmap_endian reg_format_endian_default; |
519 | enum regmap_endian val_format_endian_default; | |
adaac459 MP |
520 | size_t max_raw_read; |
521 | size_t max_raw_write; | |
b83a313b MB |
522 | }; |
523 | ||
3cfe7a74 NB |
524 | /* |
525 | * __regmap_init functions. | |
526 | * | |
527 | * These functions take a lock key and name parameter, and should not be called | |
528 | * directly. Instead, use the regmap_init macros that generate a key and name | |
529 | * for each call. | |
530 | */ | |
531 | struct regmap *__regmap_init(struct device *dev, | |
532 | const struct regmap_bus *bus, | |
533 | void *bus_context, | |
534 | const struct regmap_config *config, | |
535 | struct lock_class_key *lock_key, | |
536 | const char *lock_name); | |
537 | struct regmap *__regmap_init_i2c(struct i2c_client *i2c, | |
538 | const struct regmap_config *config, | |
539 | struct lock_class_key *lock_key, | |
540 | const char *lock_name); | |
bcf7eac3 AM |
541 | struct regmap *__regmap_init_sccb(struct i2c_client *i2c, |
542 | const struct regmap_config *config, | |
543 | struct lock_class_key *lock_key, | |
544 | const char *lock_name); | |
7d6f7fb0 SK |
545 | struct regmap *__regmap_init_slimbus(struct slim_device *slimbus, |
546 | const struct regmap_config *config, | |
547 | struct lock_class_key *lock_key, | |
548 | const char *lock_name); | |
3cfe7a74 NB |
549 | struct regmap *__regmap_init_spi(struct spi_device *dev, |
550 | const struct regmap_config *config, | |
551 | struct lock_class_key *lock_key, | |
552 | const char *lock_name); | |
553 | struct regmap *__regmap_init_spmi_base(struct spmi_device *dev, | |
554 | const struct regmap_config *config, | |
555 | struct lock_class_key *lock_key, | |
556 | const char *lock_name); | |
557 | struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev, | |
558 | const struct regmap_config *config, | |
559 | struct lock_class_key *lock_key, | |
560 | const char *lock_name); | |
cc5d0db3 AM |
561 | struct regmap *__regmap_init_w1(struct device *w1_dev, |
562 | const struct regmap_config *config, | |
563 | struct lock_class_key *lock_key, | |
564 | const char *lock_name); | |
3cfe7a74 NB |
565 | struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id, |
566 | void __iomem *regs, | |
567 | const struct regmap_config *config, | |
568 | struct lock_class_key *lock_key, | |
569 | const char *lock_name); | |
570 | struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97, | |
571 | const struct regmap_config *config, | |
572 | struct lock_class_key *lock_key, | |
573 | const char *lock_name); | |
7c22ce6e VK |
574 | struct regmap *__regmap_init_sdw(struct sdw_slave *sdw, |
575 | const struct regmap_config *config, | |
576 | struct lock_class_key *lock_key, | |
577 | const char *lock_name); | |
3cfe7a74 NB |
578 | |
579 | struct regmap *__devm_regmap_init(struct device *dev, | |
580 | const struct regmap_bus *bus, | |
581 | void *bus_context, | |
582 | const struct regmap_config *config, | |
583 | struct lock_class_key *lock_key, | |
584 | const char *lock_name); | |
585 | struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c, | |
586 | const struct regmap_config *config, | |
587 | struct lock_class_key *lock_key, | |
588 | const char *lock_name); | |
bcf7eac3 AM |
589 | struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c, |
590 | const struct regmap_config *config, | |
591 | struct lock_class_key *lock_key, | |
592 | const char *lock_name); | |
3cfe7a74 NB |
593 | struct regmap *__devm_regmap_init_spi(struct spi_device *dev, |
594 | const struct regmap_config *config, | |
595 | struct lock_class_key *lock_key, | |
596 | const char *lock_name); | |
597 | struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev, | |
598 | const struct regmap_config *config, | |
599 | struct lock_class_key *lock_key, | |
600 | const char *lock_name); | |
601 | struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev, | |
602 | const struct regmap_config *config, | |
603 | struct lock_class_key *lock_key, | |
604 | const char *lock_name); | |
cc5d0db3 AM |
605 | struct regmap *__devm_regmap_init_w1(struct device *w1_dev, |
606 | const struct regmap_config *config, | |
607 | struct lock_class_key *lock_key, | |
608 | const char *lock_name); | |
3cfe7a74 NB |
609 | struct regmap *__devm_regmap_init_mmio_clk(struct device *dev, |
610 | const char *clk_id, | |
611 | void __iomem *regs, | |
612 | const struct regmap_config *config, | |
613 | struct lock_class_key *lock_key, | |
614 | const char *lock_name); | |
615 | struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97, | |
616 | const struct regmap_config *config, | |
617 | struct lock_class_key *lock_key, | |
618 | const char *lock_name); | |
7c22ce6e VK |
619 | struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw, |
620 | const struct regmap_config *config, | |
621 | struct lock_class_key *lock_key, | |
622 | const char *lock_name); | |
ed24d568 SK |
623 | struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, |
624 | const struct regmap_config *config, | |
625 | struct lock_class_key *lock_key, | |
626 | const char *lock_name); | |
3cfe7a74 NB |
627 | /* |
628 | * Wrapper for regmap_init macros to include a unique lockdep key and name | |
629 | * for each call. No-op if CONFIG_LOCKDEP is not set. | |
630 | * | |
631 | * @fn: Real function to call (in the form __[*_]regmap_init[_*]) | |
632 | * @name: Config variable name (#config in the calling macro) | |
633 | **/ | |
634 | #ifdef CONFIG_LOCKDEP | |
635 | #define __regmap_lockdep_wrapper(fn, name, ...) \ | |
636 | ( \ | |
637 | ({ \ | |
638 | static struct lock_class_key _key; \ | |
639 | fn(__VA_ARGS__, &_key, \ | |
640 | KBUILD_BASENAME ":" \ | |
641 | __stringify(__LINE__) ":" \ | |
642 | "(" name ")->lock"); \ | |
643 | }) \ | |
644 | ) | |
645 | #else | |
646 | #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL) | |
647 | #endif | |
648 | ||
1ed81114 | 649 | /** |
2cf8e2df | 650 | * regmap_init() - Initialise register map |
1ed81114 NB |
651 | * |
652 | * @dev: Device that will be interacted with | |
653 | * @bus: Bus-specific callbacks to use with device | |
654 | * @bus_context: Data passed to bus-specific callbacks | |
655 | * @config: Configuration for register map | |
656 | * | |
657 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
658 | * a struct regmap. This function should generally not be called | |
659 | * directly, it should be called by bus-specific init functions. | |
660 | */ | |
3cfe7a74 NB |
661 | #define regmap_init(dev, bus, bus_context, config) \ |
662 | __regmap_lockdep_wrapper(__regmap_init, #config, \ | |
663 | dev, bus, bus_context, config) | |
6cfec04b | 664 | int regmap_attach_dev(struct device *dev, struct regmap *map, |
3cfe7a74 | 665 | const struct regmap_config *config); |
22853223 | 666 | |
1ed81114 | 667 | /** |
2cf8e2df | 668 | * regmap_init_i2c() - Initialise register map |
1ed81114 NB |
669 | * |
670 | * @i2c: Device that will be interacted with | |
671 | * @config: Configuration for register map | |
672 | * | |
673 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
674 | * a struct regmap. | |
675 | */ | |
3cfe7a74 NB |
676 | #define regmap_init_i2c(i2c, config) \ |
677 | __regmap_lockdep_wrapper(__regmap_init_i2c, #config, \ | |
678 | i2c, config) | |
1ed81114 | 679 | |
bcf7eac3 AM |
680 | /** |
681 | * regmap_init_sccb() - Initialise register map | |
682 | * | |
683 | * @i2c: Device that will be interacted with | |
684 | * @config: Configuration for register map | |
685 | * | |
686 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
687 | * a struct regmap. | |
688 | */ | |
689 | #define regmap_init_sccb(i2c, config) \ | |
690 | __regmap_lockdep_wrapper(__regmap_init_sccb, #config, \ | |
691 | i2c, config) | |
692 | ||
7d6f7fb0 SK |
693 | /** |
694 | * regmap_init_slimbus() - Initialise register map | |
695 | * | |
696 | * @slimbus: Device that will be interacted with | |
697 | * @config: Configuration for register map | |
698 | * | |
699 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
700 | * a struct regmap. | |
701 | */ | |
702 | #define regmap_init_slimbus(slimbus, config) \ | |
703 | __regmap_lockdep_wrapper(__regmap_init_slimbus, #config, \ | |
704 | slimbus, config) | |
705 | ||
1ed81114 | 706 | /** |
2cf8e2df | 707 | * regmap_init_spi() - Initialise register map |
1ed81114 | 708 | * |
2cf8e2df | 709 | * @dev: Device that will be interacted with |
1ed81114 NB |
710 | * @config: Configuration for register map |
711 | * | |
712 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
713 | * a struct regmap. | |
714 | */ | |
3cfe7a74 NB |
715 | #define regmap_init_spi(dev, config) \ |
716 | __regmap_lockdep_wrapper(__regmap_init_spi, #config, \ | |
717 | dev, config) | |
1ed81114 NB |
718 | |
719 | /** | |
2cf8e2df CK |
720 | * regmap_init_spmi_base() - Create regmap for the Base register space |
721 | * | |
722 | * @dev: SPMI device that will be interacted with | |
1ed81114 NB |
723 | * @config: Configuration for register map |
724 | * | |
725 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
726 | * a struct regmap. | |
727 | */ | |
3cfe7a74 NB |
728 | #define regmap_init_spmi_base(dev, config) \ |
729 | __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config, \ | |
730 | dev, config) | |
1ed81114 NB |
731 | |
732 | /** | |
2cf8e2df CK |
733 | * regmap_init_spmi_ext() - Create regmap for Ext register space |
734 | * | |
735 | * @dev: Device that will be interacted with | |
1ed81114 NB |
736 | * @config: Configuration for register map |
737 | * | |
738 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
739 | * a struct regmap. | |
740 | */ | |
3cfe7a74 NB |
741 | #define regmap_init_spmi_ext(dev, config) \ |
742 | __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config, \ | |
743 | dev, config) | |
1ed81114 | 744 | |
cc5d0db3 AM |
745 | /** |
746 | * regmap_init_w1() - Initialise register map | |
747 | * | |
748 | * @w1_dev: Device that will be interacted with | |
749 | * @config: Configuration for register map | |
750 | * | |
751 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
752 | * a struct regmap. | |
753 | */ | |
754 | #define regmap_init_w1(w1_dev, config) \ | |
755 | __regmap_lockdep_wrapper(__regmap_init_w1, #config, \ | |
756 | w1_dev, config) | |
757 | ||
1ed81114 | 758 | /** |
2cf8e2df | 759 | * regmap_init_mmio_clk() - Initialise register map with register clock |
1ed81114 NB |
760 | * |
761 | * @dev: Device that will be interacted with | |
762 | * @clk_id: register clock consumer ID | |
763 | * @regs: Pointer to memory-mapped IO region | |
764 | * @config: Configuration for register map | |
765 | * | |
766 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
767 | * a struct regmap. | |
768 | */ | |
3cfe7a74 NB |
769 | #define regmap_init_mmio_clk(dev, clk_id, regs, config) \ |
770 | __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config, \ | |
771 | dev, clk_id, regs, config) | |
878ec67b PZ |
772 | |
773 | /** | |
2cf8e2df | 774 | * regmap_init_mmio() - Initialise register map |
878ec67b PZ |
775 | * |
776 | * @dev: Device that will be interacted with | |
777 | * @regs: Pointer to memory-mapped IO region | |
778 | * @config: Configuration for register map | |
779 | * | |
780 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
781 | * a struct regmap. | |
782 | */ | |
1ed81114 NB |
783 | #define regmap_init_mmio(dev, regs, config) \ |
784 | regmap_init_mmio_clk(dev, NULL, regs, config) | |
785 | ||
786 | /** | |
2cf8e2df | 787 | * regmap_init_ac97() - Initialise AC'97 register map |
1ed81114 NB |
788 | * |
789 | * @ac97: Device that will be interacted with | |
790 | * @config: Configuration for register map | |
791 | * | |
792 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
793 | * a struct regmap. | |
794 | */ | |
3cfe7a74 NB |
795 | #define regmap_init_ac97(ac97, config) \ |
796 | __regmap_lockdep_wrapper(__regmap_init_ac97, #config, \ | |
797 | ac97, config) | |
22853223 | 798 | bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); |
878ec67b | 799 | |
7c22ce6e VK |
800 | /** |
801 | * regmap_init_sdw() - Initialise register map | |
802 | * | |
803 | * @sdw: Device that will be interacted with | |
804 | * @config: Configuration for register map | |
805 | * | |
806 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
807 | * a struct regmap. | |
808 | */ | |
809 | #define regmap_init_sdw(sdw, config) \ | |
810 | __regmap_lockdep_wrapper(__regmap_init_sdw, #config, \ | |
811 | sdw, config) | |
812 | ||
813 | ||
1ed81114 | 814 | /** |
2cf8e2df | 815 | * devm_regmap_init() - Initialise managed register map |
1ed81114 NB |
816 | * |
817 | * @dev: Device that will be interacted with | |
818 | * @bus: Bus-specific callbacks to use with device | |
819 | * @bus_context: Data passed to bus-specific callbacks | |
820 | * @config: Configuration for register map | |
821 | * | |
822 | * The return value will be an ERR_PTR() on error or a valid pointer | |
823 | * to a struct regmap. This function should generally not be called | |
824 | * directly, it should be called by bus-specific init functions. The | |
825 | * map will be automatically freed by the device management code. | |
826 | */ | |
3cfe7a74 NB |
827 | #define devm_regmap_init(dev, bus, bus_context, config) \ |
828 | __regmap_lockdep_wrapper(__devm_regmap_init, #config, \ | |
829 | dev, bus, bus_context, config) | |
1ed81114 NB |
830 | |
831 | /** | |
2cf8e2df | 832 | * devm_regmap_init_i2c() - Initialise managed register map |
1ed81114 NB |
833 | * |
834 | * @i2c: Device that will be interacted with | |
835 | * @config: Configuration for register map | |
836 | * | |
837 | * The return value will be an ERR_PTR() on error or a valid pointer | |
838 | * to a struct regmap. The regmap will be automatically freed by the | |
839 | * device management code. | |
840 | */ | |
3cfe7a74 NB |
841 | #define devm_regmap_init_i2c(i2c, config) \ |
842 | __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config, \ | |
843 | i2c, config) | |
1ed81114 | 844 | |
bcf7eac3 AM |
845 | /** |
846 | * devm_regmap_init_sccb() - Initialise managed register map | |
847 | * | |
848 | * @i2c: Device that will be interacted with | |
849 | * @config: Configuration for register map | |
850 | * | |
851 | * The return value will be an ERR_PTR() on error or a valid pointer | |
852 | * to a struct regmap. The regmap will be automatically freed by the | |
853 | * device management code. | |
854 | */ | |
855 | #define devm_regmap_init_sccb(i2c, config) \ | |
856 | __regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config, \ | |
857 | i2c, config) | |
858 | ||
1ed81114 | 859 | /** |
2cf8e2df | 860 | * devm_regmap_init_spi() - Initialise register map |
1ed81114 | 861 | * |
2cf8e2df | 862 | * @dev: Device that will be interacted with |
1ed81114 NB |
863 | * @config: Configuration for register map |
864 | * | |
865 | * The return value will be an ERR_PTR() on error or a valid pointer | |
866 | * to a struct regmap. The map will be automatically freed by the | |
867 | * device management code. | |
868 | */ | |
3cfe7a74 NB |
869 | #define devm_regmap_init_spi(dev, config) \ |
870 | __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config, \ | |
871 | dev, config) | |
1ed81114 NB |
872 | |
873 | /** | |
2cf8e2df CK |
874 | * devm_regmap_init_spmi_base() - Create managed regmap for Base register space |
875 | * | |
876 | * @dev: SPMI device that will be interacted with | |
1ed81114 NB |
877 | * @config: Configuration for register map |
878 | * | |
879 | * The return value will be an ERR_PTR() on error or a valid pointer | |
880 | * to a struct regmap. The regmap will be automatically freed by the | |
881 | * device management code. | |
882 | */ | |
3cfe7a74 NB |
883 | #define devm_regmap_init_spmi_base(dev, config) \ |
884 | __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \ | |
885 | dev, config) | |
1ed81114 NB |
886 | |
887 | /** | |
2cf8e2df CK |
888 | * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space |
889 | * | |
890 | * @dev: SPMI device that will be interacted with | |
1ed81114 NB |
891 | * @config: Configuration for register map |
892 | * | |
893 | * The return value will be an ERR_PTR() on error or a valid pointer | |
894 | * to a struct regmap. The regmap will be automatically freed by the | |
895 | * device management code. | |
896 | */ | |
3cfe7a74 NB |
897 | #define devm_regmap_init_spmi_ext(dev, config) \ |
898 | __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config, \ | |
899 | dev, config) | |
3cfe7a74 | 900 | |
cc5d0db3 AM |
901 | /** |
902 | * devm_regmap_init_w1() - Initialise managed register map | |
903 | * | |
904 | * @w1_dev: Device that will be interacted with | |
905 | * @config: Configuration for register map | |
906 | * | |
907 | * The return value will be an ERR_PTR() on error or a valid pointer | |
908 | * to a struct regmap. The regmap will be automatically freed by the | |
909 | * device management code. | |
910 | */ | |
911 | #define devm_regmap_init_w1(w1_dev, config) \ | |
912 | __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config, \ | |
913 | w1_dev, config) | |
878ec67b | 914 | /** |
2cf8e2df | 915 | * devm_regmap_init_mmio_clk() - Initialise managed register map with clock |
878ec67b PZ |
916 | * |
917 | * @dev: Device that will be interacted with | |
1ed81114 | 918 | * @clk_id: register clock consumer ID |
878ec67b PZ |
919 | * @regs: Pointer to memory-mapped IO region |
920 | * @config: Configuration for register map | |
921 | * | |
1ed81114 NB |
922 | * The return value will be an ERR_PTR() on error or a valid pointer |
923 | * to a struct regmap. The regmap will be automatically freed by the | |
924 | * device management code. | |
878ec67b | 925 | */ |
1ed81114 NB |
926 | #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config) \ |
927 | __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config, \ | |
928 | dev, clk_id, regs, config) | |
878ec67b PZ |
929 | |
930 | /** | |
2cf8e2df | 931 | * devm_regmap_init_mmio() - Initialise managed register map |
878ec67b PZ |
932 | * |
933 | * @dev: Device that will be interacted with | |
934 | * @regs: Pointer to memory-mapped IO region | |
935 | * @config: Configuration for register map | |
936 | * | |
937 | * The return value will be an ERR_PTR() on error or a valid pointer | |
938 | * to a struct regmap. The regmap will be automatically freed by the | |
939 | * device management code. | |
940 | */ | |
3cfe7a74 NB |
941 | #define devm_regmap_init_mmio(dev, regs, config) \ |
942 | devm_regmap_init_mmio_clk(dev, NULL, regs, config) | |
c0eb4676 | 943 | |
1ed81114 | 944 | /** |
2cf8e2df | 945 | * devm_regmap_init_ac97() - Initialise AC'97 register map |
1ed81114 NB |
946 | * |
947 | * @ac97: Device that will be interacted with | |
948 | * @config: Configuration for register map | |
949 | * | |
950 | * The return value will be an ERR_PTR() on error or a valid pointer | |
951 | * to a struct regmap. The regmap will be automatically freed by the | |
952 | * device management code. | |
953 | */ | |
954 | #define devm_regmap_init_ac97(ac97, config) \ | |
955 | __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \ | |
956 | ac97, config) | |
c0eb4676 | 957 | |
7c22ce6e VK |
958 | /** |
959 | * devm_regmap_init_sdw() - Initialise managed register map | |
960 | * | |
961 | * @sdw: Device that will be interacted with | |
962 | * @config: Configuration for register map | |
963 | * | |
964 | * The return value will be an ERR_PTR() on error or a valid pointer | |
965 | * to a struct regmap. The regmap will be automatically freed by the | |
966 | * device management code. | |
967 | */ | |
968 | #define devm_regmap_init_sdw(sdw, config) \ | |
969 | __regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \ | |
970 | sdw, config) | |
971 | ||
ed24d568 SK |
972 | /** |
973 | * devm_regmap_init_slimbus() - Initialise managed register map | |
974 | * | |
975 | * @slimbus: Device that will be interacted with | |
976 | * @config: Configuration for register map | |
977 | * | |
978 | * The return value will be an ERR_PTR() on error or a valid pointer | |
979 | * to a struct regmap. The regmap will be automatically freed by the | |
980 | * device management code. | |
981 | */ | |
982 | #define devm_regmap_init_slimbus(slimbus, config) \ | |
983 | __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \ | |
984 | slimbus, config) | |
31895662 MR |
985 | int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); |
986 | void regmap_mmio_detach_clk(struct regmap *map); | |
b83a313b | 987 | void regmap_exit(struct regmap *map); |
bf315173 MB |
988 | int regmap_reinit_cache(struct regmap *map, |
989 | const struct regmap_config *config); | |
72b39f6f | 990 | struct regmap *dev_get_regmap(struct device *dev, const char *name); |
8d7d3972 | 991 | struct device *regmap_get_device(struct regmap *map); |
b83a313b | 992 | int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); |
915f441b | 993 | int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); |
b83a313b MB |
994 | int regmap_raw_write(struct regmap *map, unsigned int reg, |
995 | const void *val, size_t val_len); | |
cdf6b11d BW |
996 | int regmap_noinc_write(struct regmap *map, unsigned int reg, |
997 | const void *val, size_t val_len); | |
8eaeb219 LD |
998 | int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, |
999 | size_t val_count); | |
8019ff6c | 1000 | int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs, |
e33fabd3 | 1001 | int num_regs); |
1d5b40bc | 1002 | int regmap_multi_reg_write_bypassed(struct regmap *map, |
8019ff6c | 1003 | const struct reg_sequence *regs, |
1d5b40bc | 1004 | int num_regs); |
0d509f2b MB |
1005 | int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
1006 | const void *val, size_t val_len); | |
b83a313b MB |
1007 | int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); |
1008 | int regmap_raw_read(struct regmap *map, unsigned int reg, | |
1009 | void *val, size_t val_len); | |
74fe7b55 CDL |
1010 | int regmap_noinc_read(struct regmap *map, unsigned int reg, |
1011 | void *val, size_t val_len); | |
b83a313b MB |
1012 | int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, |
1013 | size_t val_count); | |
91d31b9f KM |
1014 | int regmap_update_bits_base(struct regmap *map, unsigned int reg, |
1015 | unsigned int mask, unsigned int val, | |
1016 | bool *change, bool async, bool force); | |
a6539c32 | 1017 | int regmap_get_val_bytes(struct regmap *map); |
668abc72 | 1018 | int regmap_get_max_register(struct regmap *map); |
a2f776cb | 1019 | int regmap_get_reg_stride(struct regmap *map); |
0d509f2b | 1020 | int regmap_async_complete(struct regmap *map); |
221ad7f2 | 1021 | bool regmap_can_raw_write(struct regmap *map); |
f50c9eb4 MP |
1022 | size_t regmap_get_raw_read_max(struct regmap *map); |
1023 | size_t regmap_get_raw_write_max(struct regmap *map); | |
b83a313b | 1024 | |
39a58439 | 1025 | int regcache_sync(struct regmap *map); |
4d4cfd16 MB |
1026 | int regcache_sync_region(struct regmap *map, unsigned int min, |
1027 | unsigned int max); | |
697e85bc MB |
1028 | int regcache_drop_region(struct regmap *map, unsigned int min, |
1029 | unsigned int max); | |
92afb286 | 1030 | void regcache_cache_only(struct regmap *map, bool enable); |
6eb0f5e0 | 1031 | void regcache_cache_bypass(struct regmap *map, bool enable); |
8ae0d7e8 | 1032 | void regcache_mark_dirty(struct regmap *map); |
92afb286 | 1033 | |
154881e5 MB |
1034 | bool regmap_check_range_table(struct regmap *map, unsigned int reg, |
1035 | const struct regmap_access_table *table); | |
1036 | ||
8019ff6c | 1037 | int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs, |
22f0d90a | 1038 | int num_regs); |
13ff50c8 NC |
1039 | int regmap_parse_val(struct regmap *map, const void *buf, |
1040 | unsigned int *val); | |
22f0d90a | 1041 | |
76aad392 DC |
1042 | static inline bool regmap_reg_in_range(unsigned int reg, |
1043 | const struct regmap_range *range) | |
1044 | { | |
1045 | return reg >= range->range_min && reg <= range->range_max; | |
1046 | } | |
1047 | ||
1048 | bool regmap_reg_in_ranges(unsigned int reg, | |
1049 | const struct regmap_range *ranges, | |
1050 | unsigned int nranges); | |
1051 | ||
67252287 | 1052 | /** |
2cf8e2df | 1053 | * struct reg_field - Description of an register field |
67252287 SK |
1054 | * |
1055 | * @reg: Offset of the register within the regmap bank | |
1056 | * @lsb: lsb of the register field. | |
f27b37f5 | 1057 | * @msb: msb of the register field. |
a0102375 KM |
1058 | * @id_size: port size if it has some ports |
1059 | * @id_offset: address offset for each ports | |
67252287 SK |
1060 | */ |
1061 | struct reg_field { | |
1062 | unsigned int reg; | |
1063 | unsigned int lsb; | |
1064 | unsigned int msb; | |
a0102375 KM |
1065 | unsigned int id_size; |
1066 | unsigned int id_offset; | |
67252287 SK |
1067 | }; |
1068 | ||
1069 | #define REG_FIELD(_reg, _lsb, _msb) { \ | |
1070 | .reg = _reg, \ | |
1071 | .lsb = _lsb, \ | |
1072 | .msb = _msb, \ | |
1073 | } | |
1074 | ||
1075 | struct regmap_field *regmap_field_alloc(struct regmap *regmap, | |
1076 | struct reg_field reg_field); | |
1077 | void regmap_field_free(struct regmap_field *field); | |
1078 | ||
1079 | struct regmap_field *devm_regmap_field_alloc(struct device *dev, | |
1080 | struct regmap *regmap, struct reg_field reg_field); | |
1081 | void devm_regmap_field_free(struct device *dev, struct regmap_field *field); | |
1082 | ||
1083 | int regmap_field_read(struct regmap_field *field, unsigned int *val); | |
28972eaa KM |
1084 | int regmap_field_update_bits_base(struct regmap_field *field, |
1085 | unsigned int mask, unsigned int val, | |
1086 | bool *change, bool async, bool force); | |
a0102375 KM |
1087 | int regmap_fields_read(struct regmap_field *field, unsigned int id, |
1088 | unsigned int *val); | |
e126edec KM |
1089 | int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, |
1090 | unsigned int mask, unsigned int val, | |
1091 | bool *change, bool async, bool force); | |
76aad392 | 1092 | |
f8beab2b | 1093 | /** |
2cf8e2df | 1094 | * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip. |
f8beab2b MB |
1095 | * |
1096 | * @reg_offset: Offset of the status/mask register within the bank | |
1097 | * @mask: Mask used to flag/control the register. | |
7a78479f LD |
1098 | * @type_reg_offset: Offset register for the irq type setting. |
1099 | * @type_rising_mask: Mask bit to configure RISING type irq. | |
1100 | * @type_falling_mask: Mask bit to configure FALLING type irq. | |
f8beab2b MB |
1101 | */ |
1102 | struct regmap_irq { | |
1103 | unsigned int reg_offset; | |
1104 | unsigned int mask; | |
7a78479f LD |
1105 | unsigned int type_reg_offset; |
1106 | unsigned int type_rising_mask; | |
1107 | unsigned int type_falling_mask; | |
f8beab2b MB |
1108 | }; |
1109 | ||
b4fe8ba7 QZ |
1110 | #define REGMAP_IRQ_REG(_irq, _off, _mask) \ |
1111 | [_irq] = { .reg_offset = (_off), .mask = (_mask) } | |
1112 | ||
f8beab2b | 1113 | /** |
2cf8e2df | 1114 | * struct regmap_irq_chip - Description of a generic regmap irq_chip. |
f8beab2b MB |
1115 | * |
1116 | * @name: Descriptive name for IRQ controller. | |
1117 | * | |
1118 | * @status_base: Base status register address. | |
1119 | * @mask_base: Base mask register address. | |
a71411db | 1120 | * @mask_writeonly: Base mask register is write only. |
7b7d1968 GZ |
1121 | * @unmask_base: Base unmask register address. for chips who have |
1122 | * separate mask and unmask registers | |
d3233433 AS |
1123 | * @ack_base: Base ack address. If zero then the chip is clear on read. |
1124 | * Using zero value is possible with @use_ack bit. | |
a43fd50d | 1125 | * @wake_base: Base address for wake enables. If zero unsupported. |
7a78479f | 1126 | * @type_base: Base address for irq type. If zero unsupported. |
022f926a | 1127 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. |
2753e6f8 | 1128 | * @init_ack_masked: Ack all masked interrupts once during initalization. |
68622bdf | 1129 | * @mask_invert: Inverted mask register: cleared bits are masked out. |
d3233433 | 1130 | * @use_ack: Use @ack register even if it is zero. |
a650fdd9 | 1131 | * @ack_invert: Inverted ack register: cleared bits for ack. |
68622bdf | 1132 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. |
7a78479f | 1133 | * @type_invert: Invert the type flags. |
0c00c50b | 1134 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. |
f8beab2b MB |
1135 | * |
1136 | * @num_regs: Number of registers in each control bank. | |
1137 | * @irqs: Descriptors for individual IRQs. Interrupt numbers are | |
1138 | * assigned based on the index in the array of the interrupt. | |
1139 | * @num_irqs: Number of descriptors. | |
7a78479f LD |
1140 | * @num_type_reg: Number of type registers. |
1141 | * @type_reg_stride: Stride to use for chips where type registers are not | |
1142 | * contiguous. | |
ccc12561 LD |
1143 | * @handle_pre_irq: Driver specific callback to handle interrupt from device |
1144 | * before regmap_irq_handler process the interrupts. | |
1145 | * @handle_post_irq: Driver specific callback to handle interrupt from device | |
1146 | * after handling the interrupts in regmap_irq_handler(). | |
1147 | * @irq_drv_data: Driver specific IRQ data which is passed as parameter when | |
1148 | * driver specific pre/post interrupt handler is called. | |
2cf8e2df CK |
1149 | * |
1150 | * This is not intended to handle every possible interrupt controller, but | |
1151 | * it should handle a substantial proportion of those that are found in the | |
1152 | * wild. | |
f8beab2b MB |
1153 | */ |
1154 | struct regmap_irq_chip { | |
1155 | const char *name; | |
1156 | ||
1157 | unsigned int status_base; | |
1158 | unsigned int mask_base; | |
7b7d1968 | 1159 | unsigned int unmask_base; |
f8beab2b | 1160 | unsigned int ack_base; |
a43fd50d | 1161 | unsigned int wake_base; |
7a78479f | 1162 | unsigned int type_base; |
022f926a | 1163 | unsigned int irq_reg_stride; |
a71411db | 1164 | bool mask_writeonly:1; |
f484f7a6 PZ |
1165 | bool init_ack_masked:1; |
1166 | bool mask_invert:1; | |
d3233433 | 1167 | bool use_ack:1; |
a650fdd9 | 1168 | bool ack_invert:1; |
f484f7a6 PZ |
1169 | bool wake_invert:1; |
1170 | bool runtime_pm:1; | |
7a78479f | 1171 | bool type_invert:1; |
f8beab2b MB |
1172 | |
1173 | int num_regs; | |
1174 | ||
1175 | const struct regmap_irq *irqs; | |
1176 | int num_irqs; | |
7a78479f LD |
1177 | |
1178 | int num_type_reg; | |
1179 | unsigned int type_reg_stride; | |
ccc12561 LD |
1180 | |
1181 | int (*handle_pre_irq)(void *irq_drv_data); | |
1182 | int (*handle_post_irq)(void *irq_drv_data); | |
1183 | void *irq_drv_data; | |
f8beab2b MB |
1184 | }; |
1185 | ||
1186 | struct regmap_irq_chip_data; | |
1187 | ||
1188 | int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, | |
b026ddbb | 1189 | int irq_base, const struct regmap_irq_chip *chip, |
f8beab2b MB |
1190 | struct regmap_irq_chip_data **data); |
1191 | void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); | |
045b9848 LD |
1192 | |
1193 | int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq, | |
1194 | int irq_flags, int irq_base, | |
1195 | const struct regmap_irq_chip *chip, | |
1196 | struct regmap_irq_chip_data **data); | |
1197 | void devm_regmap_del_irq_chip(struct device *dev, int irq, | |
1198 | struct regmap_irq_chip_data *data); | |
1199 | ||
209a6006 | 1200 | int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); |
4af8be67 | 1201 | int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); |
90f790d2 | 1202 | struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); |
92afb286 | 1203 | |
9cde5fcd MB |
1204 | #else |
1205 | ||
1206 | /* | |
1207 | * These stubs should only ever be called by generic code which has | |
1208 | * regmap based facilities, if they ever get called at runtime | |
1209 | * something is going wrong and something probably needs to select | |
1210 | * REGMAP. | |
1211 | */ | |
1212 | ||
1213 | static inline int regmap_write(struct regmap *map, unsigned int reg, | |
1214 | unsigned int val) | |
1215 | { | |
1216 | WARN_ONCE(1, "regmap API is disabled"); | |
1217 | return -EINVAL; | |
1218 | } | |
1219 | ||
915f441b MB |
1220 | static inline int regmap_write_async(struct regmap *map, unsigned int reg, |
1221 | unsigned int val) | |
1222 | { | |
1223 | WARN_ONCE(1, "regmap API is disabled"); | |
1224 | return -EINVAL; | |
1225 | } | |
1226 | ||
9cde5fcd MB |
1227 | static inline int regmap_raw_write(struct regmap *map, unsigned int reg, |
1228 | const void *val, size_t val_len) | |
1229 | { | |
1230 | WARN_ONCE(1, "regmap API is disabled"); | |
1231 | return -EINVAL; | |
1232 | } | |
1233 | ||
0d509f2b MB |
1234 | static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
1235 | const void *val, size_t val_len) | |
1236 | { | |
1237 | WARN_ONCE(1, "regmap API is disabled"); | |
1238 | return -EINVAL; | |
1239 | } | |
1240 | ||
cdf6b11d BW |
1241 | static inline int regmap_noinc_write(struct regmap *map, unsigned int reg, |
1242 | const void *val, size_t val_len) | |
1243 | { | |
1244 | WARN_ONCE(1, "regmap API is disabled"); | |
1245 | return -EINVAL; | |
1246 | } | |
1247 | ||
9cde5fcd MB |
1248 | static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, |
1249 | const void *val, size_t val_count) | |
1250 | { | |
1251 | WARN_ONCE(1, "regmap API is disabled"); | |
1252 | return -EINVAL; | |
1253 | } | |
1254 | ||
1255 | static inline int regmap_read(struct regmap *map, unsigned int reg, | |
1256 | unsigned int *val) | |
1257 | { | |
1258 | WARN_ONCE(1, "regmap API is disabled"); | |
1259 | return -EINVAL; | |
1260 | } | |
1261 | ||
1262 | static inline int regmap_raw_read(struct regmap *map, unsigned int reg, | |
1263 | void *val, size_t val_len) | |
1264 | { | |
1265 | WARN_ONCE(1, "regmap API is disabled"); | |
1266 | return -EINVAL; | |
1267 | } | |
1268 | ||
74fe7b55 CDL |
1269 | static inline int regmap_noinc_read(struct regmap *map, unsigned int reg, |
1270 | void *val, size_t val_len) | |
1271 | { | |
1272 | WARN_ONCE(1, "regmap API is disabled"); | |
1273 | return -EINVAL; | |
1274 | } | |
1275 | ||
9cde5fcd MB |
1276 | static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, |
1277 | void *val, size_t val_count) | |
1278 | { | |
1279 | WARN_ONCE(1, "regmap API is disabled"); | |
1280 | return -EINVAL; | |
1281 | } | |
1282 | ||
91d31b9f KM |
1283 | static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, |
1284 | unsigned int mask, unsigned int val, | |
1285 | bool *change, bool async, bool force) | |
fd4b7286 KM |
1286 | { |
1287 | WARN_ONCE(1, "regmap API is disabled"); | |
1288 | return -EINVAL; | |
1289 | } | |
1290 | ||
28972eaa KM |
1291 | static inline int regmap_field_update_bits_base(struct regmap_field *field, |
1292 | unsigned int mask, unsigned int val, | |
1293 | bool *change, bool async, bool force) | |
915f441b MB |
1294 | { |
1295 | WARN_ONCE(1, "regmap API is disabled"); | |
1296 | return -EINVAL; | |
1297 | } | |
1298 | ||
e126edec KM |
1299 | static inline int regmap_fields_update_bits_base(struct regmap_field *field, |
1300 | unsigned int id, | |
1301 | unsigned int mask, unsigned int val, | |
1302 | bool *change, bool async, bool force) | |
915f441b MB |
1303 | { |
1304 | WARN_ONCE(1, "regmap API is disabled"); | |
1305 | return -EINVAL; | |
1306 | } | |
1307 | ||
9cde5fcd MB |
1308 | static inline int regmap_get_val_bytes(struct regmap *map) |
1309 | { | |
1310 | WARN_ONCE(1, "regmap API is disabled"); | |
1311 | return -EINVAL; | |
1312 | } | |
1313 | ||
668abc72 SK |
1314 | static inline int regmap_get_max_register(struct regmap *map) |
1315 | { | |
1316 | WARN_ONCE(1, "regmap API is disabled"); | |
1317 | return -EINVAL; | |
1318 | } | |
1319 | ||
a2f776cb SK |
1320 | static inline int regmap_get_reg_stride(struct regmap *map) |
1321 | { | |
1322 | WARN_ONCE(1, "regmap API is disabled"); | |
1323 | return -EINVAL; | |
1324 | } | |
1325 | ||
9cde5fcd MB |
1326 | static inline int regcache_sync(struct regmap *map) |
1327 | { | |
1328 | WARN_ONCE(1, "regmap API is disabled"); | |
1329 | return -EINVAL; | |
1330 | } | |
1331 | ||
a313f9f5 MB |
1332 | static inline int regcache_sync_region(struct regmap *map, unsigned int min, |
1333 | unsigned int max) | |
1334 | { | |
1335 | WARN_ONCE(1, "regmap API is disabled"); | |
1336 | return -EINVAL; | |
1337 | } | |
1338 | ||
697e85bc MB |
1339 | static inline int regcache_drop_region(struct regmap *map, unsigned int min, |
1340 | unsigned int max) | |
1341 | { | |
1342 | WARN_ONCE(1, "regmap API is disabled"); | |
1343 | return -EINVAL; | |
1344 | } | |
1345 | ||
9cde5fcd MB |
1346 | static inline void regcache_cache_only(struct regmap *map, bool enable) |
1347 | { | |
1348 | WARN_ONCE(1, "regmap API is disabled"); | |
1349 | } | |
1350 | ||
1351 | static inline void regcache_cache_bypass(struct regmap *map, bool enable) | |
1352 | { | |
1353 | WARN_ONCE(1, "regmap API is disabled"); | |
1354 | } | |
1355 | ||
1356 | static inline void regcache_mark_dirty(struct regmap *map) | |
1357 | { | |
1358 | WARN_ONCE(1, "regmap API is disabled"); | |
1359 | } | |
1360 | ||
0d509f2b MB |
1361 | static inline void regmap_async_complete(struct regmap *map) |
1362 | { | |
1363 | WARN_ONCE(1, "regmap API is disabled"); | |
1364 | } | |
1365 | ||
9cde5fcd | 1366 | static inline int regmap_register_patch(struct regmap *map, |
a6baa3de | 1367 | const struct reg_sequence *regs, |
9cde5fcd MB |
1368 | int num_regs) |
1369 | { | |
1370 | WARN_ONCE(1, "regmap API is disabled"); | |
1371 | return -EINVAL; | |
1372 | } | |
1373 | ||
13ff50c8 NC |
1374 | static inline int regmap_parse_val(struct regmap *map, const void *buf, |
1375 | unsigned int *val) | |
1376 | { | |
1377 | WARN_ONCE(1, "regmap API is disabled"); | |
1378 | return -EINVAL; | |
1379 | } | |
1380 | ||
72b39f6f MB |
1381 | static inline struct regmap *dev_get_regmap(struct device *dev, |
1382 | const char *name) | |
1383 | { | |
72b39f6f MB |
1384 | return NULL; |
1385 | } | |
1386 | ||
8d7d3972 TT |
1387 | static inline struct device *regmap_get_device(struct regmap *map) |
1388 | { | |
1389 | WARN_ONCE(1, "regmap API is disabled"); | |
1d33dc6b | 1390 | return NULL; |
8d7d3972 TT |
1391 | } |
1392 | ||
9cde5fcd MB |
1393 | #endif |
1394 | ||
b83a313b | 1395 | #endif |