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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/err.h> |
19 | #include <linux/bug.h> |
20 | |
21 | struct module; |
22 | struct device; |
23 | struct i2c_client; |
24 | struct irq_domain; |
25 | struct spi_device; |
26 | struct spmi_device; |
27 | struct regmap; |
28 | struct regmap_range_cfg; |
29 | struct regmap_field; |
30 | |
31 | /* An enum of all the supported cache types */ |
32 | enum regcache_type { |
33 | REGCACHE_NONE, |
34 | REGCACHE_RBTREE, |
35 | REGCACHE_COMPRESSED, |
36 | REGCACHE_FLAT, |
37 | }; |
38 | |
39 | /** |
40 | * Default value for a register. We use an array of structs rather |
41 | * than a simple array as many modern devices have very sparse |
42 | * register maps. |
43 | * |
44 | * @reg: Register address. |
45 | * @def: Register default value. |
46 | */ |
47 | struct reg_default { |
48 | unsigned int reg; |
49 | unsigned int def; |
50 | }; |
51 | |
52 | #ifdef CONFIG_REGMAP |
53 | |
54 | enum regmap_endian { |
55 | /* Unspecified -> 0 -> Backwards compatible default */ |
56 | REGMAP_ENDIAN_DEFAULT = 0, |
57 | REGMAP_ENDIAN_BIG, |
58 | REGMAP_ENDIAN_LITTLE, |
59 | REGMAP_ENDIAN_NATIVE, |
60 | }; |
61 | |
62 | /** |
63 | * A register range, used for access related checks |
64 | * (readable/writeable/volatile/precious checks) |
65 | * |
66 | * @range_min: address of first register |
67 | * @range_max: address of last register |
68 | */ |
69 | struct regmap_range { |
70 | unsigned int range_min; |
71 | unsigned int range_max; |
72 | }; |
73 | |
74 | #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, } |
75 | |
76 | /* |
77 | * A table of ranges including some yes ranges and some no ranges. |
78 | * If a register belongs to a no_range, the corresponding check function |
79 | * will return false. If a register belongs to a yes range, the corresponding |
80 | * check function will return true. "no_ranges" are searched first. |
81 | * |
82 | * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" |
83 | * @n_yes_ranges: size of the above array |
84 | * @no_ranges: pointer to an array of regmap ranges used as "no ranges" |
85 | * @n_no_ranges: size of the above array |
86 | */ |
87 | struct regmap_access_table { |
88 | const struct regmap_range *yes_ranges; |
89 | unsigned int n_yes_ranges; |
90 | const struct regmap_range *no_ranges; |
91 | unsigned int n_no_ranges; |
92 | }; |
93 | |
94 | typedef void (*regmap_lock)(void *); |
95 | typedef void (*regmap_unlock)(void *); |
96 | |
97 | /** |
98 | * Configuration for the register map of a device. |
99 | * |
100 | * @name: Optional name of the regmap. Useful when a device has multiple |
101 | * register regions. |
102 | * |
103 | * @reg_bits: Number of bits in a register address, mandatory. |
104 | * @reg_stride: The register address stride. Valid register addresses are a |
105 | * multiple of this value. If set to 0, a value of 1 will be |
106 | * used. |
107 | * @pad_bits: Number of bits of padding between register and value. |
108 | * @val_bits: Number of bits in a register value, mandatory. |
109 | * |
110 | * @writeable_reg: Optional callback returning true if the register |
111 | * can be written to. If this field is NULL but wr_table |
112 | * (see below) is not, the check is performed on such table |
113 | * (a register is writeable if it belongs to one of the ranges |
114 | * specified by wr_table). |
115 | * @readable_reg: Optional callback returning true if the register |
116 | * can be read from. If this field is NULL but rd_table |
117 | * (see below) is not, the check is performed on such table |
118 | * (a register is readable if it belongs to one of the ranges |
119 | * specified by rd_table). |
120 | * @volatile_reg: Optional callback returning true if the register |
121 | * value can't be cached. If this field is NULL but |
122 | * volatile_table (see below) is not, the check is performed on |
123 | * such table (a register is volatile if it belongs to one of |
124 | * the ranges specified by volatile_table). |
125 | * @precious_reg: Optional callback returning true if the rgister |
126 | * should not be read outside of a call from the driver |
127 | * (eg, a clear on read interrupt status register). If this |
128 | * field is NULL but precious_table (see below) is not, the |
129 | * check is performed on such table (a register is precious if |
130 | * it belongs to one of the ranges specified by precious_table). |
131 | * @lock: Optional lock callback (overrides regmap's default lock |
132 | * function, based on spinlock or mutex). |
133 | * @unlock: As above for unlocking. |
134 | * @lock_arg: this field is passed as the only argument of lock/unlock |
135 | * functions (ignored in case regular lock/unlock functions |
136 | * are not overridden). |
137 | * @reg_read: Optional callback that if filled will be used to perform |
138 | * all the reads from the registers. Should only be provided for |
139 | * devices whos read operation cannot be represented as a simple read |
140 | * operation on a bus such as SPI, I2C, etc. Most of the devices do |
141 | * not need this. |
142 | * @reg_write: Same as above for writing. |
143 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex |
144 | * to perform locking. This field is ignored if custom lock/unlock |
145 | * functions are used (see fields lock/unlock of struct regmap_config). |
146 | * This field is a duplicate of a similar file in |
147 | * 'struct regmap_bus' and serves exact same purpose. |
148 | * Use it only for "no-bus" cases. |
149 | * @max_register: Optional, specifies the maximum valid register index. |
150 | * @wr_table: Optional, points to a struct regmap_access_table specifying |
151 | * valid ranges for write access. |
152 | * @rd_table: As above, for read access. |
153 | * @volatile_table: As above, for volatile registers. |
154 | * @precious_table: As above, for precious registers. |
155 | * @reg_defaults: Power on reset values for registers (for use with |
156 | * register cache support). |
157 | * @num_reg_defaults: Number of elements in reg_defaults. |
158 | * |
159 | * @read_flag_mask: Mask to be set in the top byte of the register when doing |
160 | * a read. |
161 | * @write_flag_mask: Mask to be set in the top byte of the register when doing |
162 | * a write. If both read_flag_mask and write_flag_mask are |
163 | * empty the regmap_bus default masks are used. |
164 | * @use_single_rw: If set, converts the bulk read and write operations into |
165 | * a series of single read and write operations. This is useful |
166 | * for device that does not support bulk read and write. |
167 | * |
168 | * @cache_type: The actual cache type. |
169 | * @reg_defaults_raw: Power on reset values for registers (for use with |
170 | * register cache support). |
171 | * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. |
172 | * @reg_format_endian: Endianness for formatted register addresses. If this is |
173 | * DEFAULT, the @reg_format_endian_default value from the |
174 | * regmap bus is used. |
175 | * @val_format_endian: Endianness for formatted register values. If this is |
176 | * DEFAULT, the @reg_format_endian_default value from the |
177 | * regmap bus is used. |
178 | * |
179 | * @ranges: Array of configuration entries for virtual address ranges. |
180 | * @num_ranges: Number of range configuration entries. |
181 | */ |
182 | struct regmap_config { |
183 | const char *name; |
184 | |
185 | int reg_bits; |
186 | int reg_stride; |
187 | int pad_bits; |
188 | int val_bits; |
189 | |
190 | bool (*writeable_reg)(struct device *dev, unsigned int reg); |
191 | bool (*readable_reg)(struct device *dev, unsigned int reg); |
192 | bool (*volatile_reg)(struct device *dev, unsigned int reg); |
193 | bool (*precious_reg)(struct device *dev, unsigned int reg); |
194 | regmap_lock lock; |
195 | regmap_unlock unlock; |
196 | void *lock_arg; |
197 | |
198 | int (*reg_read)(void *context, unsigned int reg, unsigned int *val); |
199 | int (*reg_write)(void *context, unsigned int reg, unsigned int val); |
200 | |
201 | bool fast_io; |
202 | |
203 | unsigned int max_register; |
204 | const struct regmap_access_table *wr_table; |
205 | const struct regmap_access_table *rd_table; |
206 | const struct regmap_access_table *volatile_table; |
207 | const struct regmap_access_table *precious_table; |
208 | const struct reg_default *reg_defaults; |
209 | unsigned int num_reg_defaults; |
210 | enum regcache_type cache_type; |
211 | const void *reg_defaults_raw; |
212 | unsigned int num_reg_defaults_raw; |
213 | |
214 | u8 read_flag_mask; |
215 | u8 write_flag_mask; |
216 | |
217 | bool use_single_rw; |
218 | |
219 | enum regmap_endian reg_format_endian; |
220 | enum regmap_endian val_format_endian; |
221 | |
222 | const struct regmap_range_cfg *ranges; |
223 | unsigned int num_ranges; |
224 | }; |
225 | |
226 | /** |
227 | * Configuration for indirectly accessed or paged registers. |
228 | * Registers, mapped to this virtual range, are accessed in two steps: |
229 | * 1. page selector register update; |
230 | * 2. access through data window registers. |
231 | * |
232 | * @name: Descriptive name for diagnostics |
233 | * |
234 | * @range_min: Address of the lowest register address in virtual range. |
235 | * @range_max: Address of the highest register in virtual range. |
236 | * |
237 | * @page_sel_reg: Register with selector field. |
238 | * @page_sel_mask: Bit shift for selector value. |
239 | * @page_sel_shift: Bit mask for selector value. |
240 | * |
241 | * @window_start: Address of first (lowest) register in data window. |
242 | * @window_len: Number of registers in data window. |
243 | */ |
244 | struct regmap_range_cfg { |
245 | const char *name; |
246 | |
247 | /* Registers of virtual address range */ |
248 | unsigned int range_min; |
249 | unsigned int range_max; |
250 | |
251 | /* Page selector for indirect addressing */ |
252 | unsigned int selector_reg; |
253 | unsigned int selector_mask; |
254 | int selector_shift; |
255 | |
256 | /* Data window (per each page) */ |
257 | unsigned int window_start; |
258 | unsigned int window_len; |
259 | }; |
260 | |
261 | struct regmap_async; |
262 | |
263 | typedef int (*regmap_hw_write)(void *context, const void *data, |
264 | size_t count); |
265 | typedef int (*regmap_hw_gather_write)(void *context, |
266 | const void *reg, size_t reg_len, |
267 | const void *val, size_t val_len); |
268 | typedef int (*regmap_hw_async_write)(void *context, |
269 | const void *reg, size_t reg_len, |
270 | const void *val, size_t val_len, |
271 | struct regmap_async *async); |
272 | typedef int (*regmap_hw_read)(void *context, |
273 | const void *reg_buf, size_t reg_size, |
274 | void *val_buf, size_t val_size); |
275 | typedef struct regmap_async *(*regmap_hw_async_alloc)(void); |
276 | typedef void (*regmap_hw_free_context)(void *context); |
277 | |
278 | /** |
279 | * Description of a hardware bus for the register map infrastructure. |
280 | * |
281 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex |
282 | * to perform locking. This field is ignored if custom lock/unlock |
283 | * functions are used (see fields lock/unlock of |
284 | * struct regmap_config). |
285 | * @write: Write operation. |
286 | * @gather_write: Write operation with split register/value, return -ENOTSUPP |
287 | * if not implemented on a given device. |
288 | * @async_write: Write operation which completes asynchronously, optional and |
289 | * must serialise with respect to non-async I/O. |
290 | * @read: Read operation. Data is returned in the buffer used to transmit |
291 | * data. |
292 | * @async_alloc: Allocate a regmap_async() structure. |
293 | * @read_flag_mask: Mask to be set in the top byte of the register when doing |
294 | * a read. |
295 | * @reg_format_endian_default: Default endianness for formatted register |
296 | * addresses. Used when the regmap_config specifies DEFAULT. If this is |
297 | * DEFAULT, BIG is assumed. |
298 | * @val_format_endian_default: Default endianness for formatted register |
299 | * values. Used when the regmap_config specifies DEFAULT. If this is |
300 | * DEFAULT, BIG is assumed. |
301 | * @async_size: Size of struct used for async work. |
302 | */ |
303 | struct regmap_bus { |
304 | bool fast_io; |
305 | regmap_hw_write write; |
306 | regmap_hw_gather_write gather_write; |
307 | regmap_hw_async_write async_write; |
308 | regmap_hw_read read; |
309 | regmap_hw_free_context free_context; |
310 | regmap_hw_async_alloc async_alloc; |
311 | u8 read_flag_mask; |
312 | enum regmap_endian reg_format_endian_default; |
313 | enum regmap_endian val_format_endian_default; |
314 | }; |
315 | |
316 | struct regmap *regmap_init(struct device *dev, |
317 | const struct regmap_bus *bus, |
318 | void *bus_context, |
319 | const struct regmap_config *config); |
320 | struct regmap *regmap_init_i2c(struct i2c_client *i2c, |
321 | const struct regmap_config *config); |
322 | struct regmap *regmap_init_spi(struct spi_device *dev, |
323 | const struct regmap_config *config); |
324 | struct regmap *regmap_init_spmi(struct spmi_device *dev, |
325 | const struct regmap_config *config); |
326 | struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, |
327 | void __iomem *regs, |
328 | const struct regmap_config *config); |
329 | |
330 | struct regmap *devm_regmap_init(struct device *dev, |
331 | const struct regmap_bus *bus, |
332 | void *bus_context, |
333 | const struct regmap_config *config); |
334 | struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, |
335 | const struct regmap_config *config); |
336 | struct regmap *devm_regmap_init_spi(struct spi_device *dev, |
337 | const struct regmap_config *config); |
338 | struct regmap *devm_regmap_init_spmi(struct spmi_device *dev, |
339 | const struct regmap_config *config); |
340 | struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, |
341 | void __iomem *regs, |
342 | const struct regmap_config *config); |
343 | |
344 | /** |
345 | * regmap_init_mmio(): Initialise register map |
346 | * |
347 | * @dev: Device that will be interacted with |
348 | * @regs: Pointer to memory-mapped IO region |
349 | * @config: Configuration for register map |
350 | * |
351 | * The return value will be an ERR_PTR() on error or a valid pointer to |
352 | * a struct regmap. |
353 | */ |
354 | static inline struct regmap *regmap_init_mmio(struct device *dev, |
355 | void __iomem *regs, |
356 | const struct regmap_config *config) |
357 | { |
358 | return regmap_init_mmio_clk(dev, NULL, regs, config); |
359 | } |
360 | |
361 | /** |
362 | * devm_regmap_init_mmio(): Initialise managed register map |
363 | * |
364 | * @dev: Device that will be interacted with |
365 | * @regs: Pointer to memory-mapped IO region |
366 | * @config: Configuration for register map |
367 | * |
368 | * The return value will be an ERR_PTR() on error or a valid pointer |
369 | * to a struct regmap. The regmap will be automatically freed by the |
370 | * device management code. |
371 | */ |
372 | static inline struct regmap *devm_regmap_init_mmio(struct device *dev, |
373 | void __iomem *regs, |
374 | const struct regmap_config *config) |
375 | { |
376 | return devm_regmap_init_mmio_clk(dev, NULL, regs, config); |
377 | } |
378 | |
379 | void regmap_exit(struct regmap *map); |
380 | int regmap_reinit_cache(struct regmap *map, |
381 | const struct regmap_config *config); |
382 | struct regmap *dev_get_regmap(struct device *dev, const char *name); |
383 | int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); |
384 | int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val); |
385 | int regmap_raw_write(struct regmap *map, unsigned int reg, |
386 | const void *val, size_t val_len); |
387 | int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, |
388 | size_t val_count); |
389 | int regmap_multi_reg_write(struct regmap *map, struct reg_default *regs, |
390 | int num_regs); |
391 | int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
392 | const void *val, size_t val_len); |
393 | int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); |
394 | int regmap_raw_read(struct regmap *map, unsigned int reg, |
395 | void *val, size_t val_len); |
396 | int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, |
397 | size_t val_count); |
398 | int regmap_update_bits(struct regmap *map, unsigned int reg, |
399 | unsigned int mask, unsigned int val); |
400 | int regmap_update_bits_async(struct regmap *map, unsigned int reg, |
401 | unsigned int mask, unsigned int val); |
402 | int regmap_update_bits_check(struct regmap *map, unsigned int reg, |
403 | unsigned int mask, unsigned int val, |
404 | bool *change); |
405 | int regmap_update_bits_check_async(struct regmap *map, unsigned int reg, |
406 | unsigned int mask, unsigned int val, |
407 | bool *change); |
408 | int regmap_get_val_bytes(struct regmap *map); |
409 | int regmap_async_complete(struct regmap *map); |
410 | bool regmap_can_raw_write(struct regmap *map); |
411 | |
412 | int regcache_sync(struct regmap *map); |
413 | int regcache_sync_region(struct regmap *map, unsigned int min, |
414 | unsigned int max); |
415 | int regcache_drop_region(struct regmap *map, unsigned int min, |
416 | unsigned int max); |
417 | void regcache_cache_only(struct regmap *map, bool enable); |
418 | void regcache_cache_bypass(struct regmap *map, bool enable); |
419 | void regcache_mark_dirty(struct regmap *map); |
420 | |
421 | bool regmap_check_range_table(struct regmap *map, unsigned int reg, |
422 | const struct regmap_access_table *table); |
423 | |
424 | int regmap_register_patch(struct regmap *map, const struct reg_default *regs, |
425 | int num_regs); |
426 | |
427 | static inline bool regmap_reg_in_range(unsigned int reg, |
428 | const struct regmap_range *range) |
429 | { |
430 | return reg >= range->range_min && reg <= range->range_max; |
431 | } |
432 | |
433 | bool regmap_reg_in_ranges(unsigned int reg, |
434 | const struct regmap_range *ranges, |
435 | unsigned int nranges); |
436 | |
437 | /** |
438 | * Description of an register field |
439 | * |
440 | * @reg: Offset of the register within the regmap bank |
441 | * @lsb: lsb of the register field. |
442 | * @reg: msb of the register field. |
443 | * @id_size: port size if it has some ports |
444 | * @id_offset: address offset for each ports |
445 | */ |
446 | struct reg_field { |
447 | unsigned int reg; |
448 | unsigned int lsb; |
449 | unsigned int msb; |
450 | unsigned int id_size; |
451 | unsigned int id_offset; |
452 | }; |
453 | |
454 | #define REG_FIELD(_reg, _lsb, _msb) { \ |
455 | .reg = _reg, \ |
456 | .lsb = _lsb, \ |
457 | .msb = _msb, \ |
458 | } |
459 | |
460 | struct regmap_field *regmap_field_alloc(struct regmap *regmap, |
461 | struct reg_field reg_field); |
462 | void regmap_field_free(struct regmap_field *field); |
463 | |
464 | struct regmap_field *devm_regmap_field_alloc(struct device *dev, |
465 | struct regmap *regmap, struct reg_field reg_field); |
466 | void devm_regmap_field_free(struct device *dev, struct regmap_field *field); |
467 | |
468 | int regmap_field_read(struct regmap_field *field, unsigned int *val); |
469 | int regmap_field_write(struct regmap_field *field, unsigned int val); |
470 | int regmap_field_update_bits(struct regmap_field *field, |
471 | unsigned int mask, unsigned int val); |
472 | |
473 | int regmap_fields_write(struct regmap_field *field, unsigned int id, |
474 | unsigned int val); |
475 | int regmap_fields_read(struct regmap_field *field, unsigned int id, |
476 | unsigned int *val); |
477 | int regmap_fields_update_bits(struct regmap_field *field, unsigned int id, |
478 | unsigned int mask, unsigned int val); |
479 | |
480 | /** |
481 | * Description of an IRQ for the generic regmap irq_chip. |
482 | * |
483 | * @reg_offset: Offset of the status/mask register within the bank |
484 | * @mask: Mask used to flag/control the register. |
485 | */ |
486 | struct regmap_irq { |
487 | unsigned int reg_offset; |
488 | unsigned int mask; |
489 | }; |
490 | |
491 | /** |
492 | * Description of a generic regmap irq_chip. This is not intended to |
493 | * handle every possible interrupt controller, but it should handle a |
494 | * substantial proportion of those that are found in the wild. |
495 | * |
496 | * @name: Descriptive name for IRQ controller. |
497 | * |
498 | * @status_base: Base status register address. |
499 | * @mask_base: Base mask register address. |
500 | * @ack_base: Base ack address. If zero then the chip is clear on read. |
501 | * @wake_base: Base address for wake enables. If zero unsupported. |
502 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. |
503 | * @init_ack_masked: Ack all masked interrupts once during initalization. |
504 | * @mask_invert: Inverted mask register: cleared bits are masked out. |
505 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. |
506 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. |
507 | * |
508 | * @num_regs: Number of registers in each control bank. |
509 | * @irqs: Descriptors for individual IRQs. Interrupt numbers are |
510 | * assigned based on the index in the array of the interrupt. |
511 | * @num_irqs: Number of descriptors. |
512 | */ |
513 | struct regmap_irq_chip { |
514 | const char *name; |
515 | |
516 | unsigned int status_base; |
517 | unsigned int mask_base; |
518 | unsigned int ack_base; |
519 | unsigned int wake_base; |
520 | unsigned int irq_reg_stride; |
521 | bool init_ack_masked:1; |
522 | bool mask_invert:1; |
523 | bool wake_invert:1; |
524 | bool runtime_pm:1; |
525 | |
526 | int num_regs; |
527 | |
528 | const struct regmap_irq *irqs; |
529 | int num_irqs; |
530 | }; |
531 | |
532 | struct regmap_irq_chip_data; |
533 | |
534 | int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, |
535 | int irq_base, const struct regmap_irq_chip *chip, |
536 | struct regmap_irq_chip_data **data); |
537 | void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); |
538 | int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); |
539 | int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); |
540 | struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); |
541 | |
542 | #else |
543 | |
544 | /* |
545 | * These stubs should only ever be called by generic code which has |
546 | * regmap based facilities, if they ever get called at runtime |
547 | * something is going wrong and something probably needs to select |
548 | * REGMAP. |
549 | */ |
550 | |
551 | static inline int regmap_write(struct regmap *map, unsigned int reg, |
552 | unsigned int val) |
553 | { |
554 | WARN_ONCE(1, "regmap API is disabled"); |
555 | return -EINVAL; |
556 | } |
557 | |
558 | static inline int regmap_write_async(struct regmap *map, unsigned int reg, |
559 | unsigned int val) |
560 | { |
561 | WARN_ONCE(1, "regmap API is disabled"); |
562 | return -EINVAL; |
563 | } |
564 | |
565 | static inline int regmap_raw_write(struct regmap *map, unsigned int reg, |
566 | const void *val, size_t val_len) |
567 | { |
568 | WARN_ONCE(1, "regmap API is disabled"); |
569 | return -EINVAL; |
570 | } |
571 | |
572 | static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
573 | const void *val, size_t val_len) |
574 | { |
575 | WARN_ONCE(1, "regmap API is disabled"); |
576 | return -EINVAL; |
577 | } |
578 | |
579 | static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, |
580 | const void *val, size_t val_count) |
581 | { |
582 | WARN_ONCE(1, "regmap API is disabled"); |
583 | return -EINVAL; |
584 | } |
585 | |
586 | static inline int regmap_read(struct regmap *map, unsigned int reg, |
587 | unsigned int *val) |
588 | { |
589 | WARN_ONCE(1, "regmap API is disabled"); |
590 | return -EINVAL; |
591 | } |
592 | |
593 | static inline int regmap_raw_read(struct regmap *map, unsigned int reg, |
594 | void *val, size_t val_len) |
595 | { |
596 | WARN_ONCE(1, "regmap API is disabled"); |
597 | return -EINVAL; |
598 | } |
599 | |
600 | static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, |
601 | void *val, size_t val_count) |
602 | { |
603 | WARN_ONCE(1, "regmap API is disabled"); |
604 | return -EINVAL; |
605 | } |
606 | |
607 | static inline int regmap_update_bits(struct regmap *map, unsigned int reg, |
608 | unsigned int mask, unsigned int val) |
609 | { |
610 | WARN_ONCE(1, "regmap API is disabled"); |
611 | return -EINVAL; |
612 | } |
613 | |
614 | static inline int regmap_update_bits_async(struct regmap *map, |
615 | unsigned int reg, |
616 | unsigned int mask, unsigned int val) |
617 | { |
618 | WARN_ONCE(1, "regmap API is disabled"); |
619 | return -EINVAL; |
620 | } |
621 | |
622 | static inline int regmap_update_bits_check(struct regmap *map, |
623 | unsigned int reg, |
624 | unsigned int mask, unsigned int val, |
625 | bool *change) |
626 | { |
627 | WARN_ONCE(1, "regmap API is disabled"); |
628 | return -EINVAL; |
629 | } |
630 | |
631 | static inline int regmap_update_bits_check_async(struct regmap *map, |
632 | unsigned int reg, |
633 | unsigned int mask, |
634 | unsigned int val, |
635 | bool *change) |
636 | { |
637 | WARN_ONCE(1, "regmap API is disabled"); |
638 | return -EINVAL; |
639 | } |
640 | |
641 | static inline int regmap_get_val_bytes(struct regmap *map) |
642 | { |
643 | WARN_ONCE(1, "regmap API is disabled"); |
644 | return -EINVAL; |
645 | } |
646 | |
647 | static inline int regcache_sync(struct regmap *map) |
648 | { |
649 | WARN_ONCE(1, "regmap API is disabled"); |
650 | return -EINVAL; |
651 | } |
652 | |
653 | static inline int regcache_sync_region(struct regmap *map, unsigned int min, |
654 | unsigned int max) |
655 | { |
656 | WARN_ONCE(1, "regmap API is disabled"); |
657 | return -EINVAL; |
658 | } |
659 | |
660 | static inline int regcache_drop_region(struct regmap *map, unsigned int min, |
661 | unsigned int max) |
662 | { |
663 | WARN_ONCE(1, "regmap API is disabled"); |
664 | return -EINVAL; |
665 | } |
666 | |
667 | static inline void regcache_cache_only(struct regmap *map, bool enable) |
668 | { |
669 | WARN_ONCE(1, "regmap API is disabled"); |
670 | } |
671 | |
672 | static inline void regcache_cache_bypass(struct regmap *map, bool enable) |
673 | { |
674 | WARN_ONCE(1, "regmap API is disabled"); |
675 | } |
676 | |
677 | static inline void regcache_mark_dirty(struct regmap *map) |
678 | { |
679 | WARN_ONCE(1, "regmap API is disabled"); |
680 | } |
681 | |
682 | static inline void regmap_async_complete(struct regmap *map) |
683 | { |
684 | WARN_ONCE(1, "regmap API is disabled"); |
685 | } |
686 | |
687 | static inline int regmap_register_patch(struct regmap *map, |
688 | const struct reg_default *regs, |
689 | int num_regs) |
690 | { |
691 | WARN_ONCE(1, "regmap API is disabled"); |
692 | return -EINVAL; |
693 | } |
694 | |
695 | static inline struct regmap *dev_get_regmap(struct device *dev, |
696 | const char *name) |
697 | { |
698 | return NULL; |
699 | } |
700 | |
701 | #endif |
702 | |
703 | #endif |
704 |
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v2.6.34-rc5
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