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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 | ||
b83a313b | 16 | #include <linux/list.h> |
6863ca62 | 17 | #include <linux/rbtree.h> |
49ccc142 | 18 | #include <linux/err.h> |
3f0fa9a8 | 19 | #include <linux/bug.h> |
b83a313b | 20 | |
de477254 | 21 | struct module; |
313162d0 | 22 | struct device; |
9943fa30 | 23 | struct i2c_client; |
90f790d2 | 24 | struct irq_domain; |
a676f083 | 25 | struct spi_device; |
a01779f8 | 26 | struct spmi_device; |
b83d2ff0 | 27 | struct regmap; |
6863ca62 | 28 | struct regmap_range_cfg; |
67252287 | 29 | struct regmap_field; |
9943fa30 | 30 | |
9fabe24e DP |
31 | /* An enum of all the supported cache types */ |
32 | enum regcache_type { | |
33 | REGCACHE_NONE, | |
28644c80 | 34 | REGCACHE_RBTREE, |
2ac902ce MB |
35 | REGCACHE_COMPRESSED, |
36 | REGCACHE_FLAT, | |
9fabe24e DP |
37 | }; |
38 | ||
bd20eb54 MB |
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 | ||
b83d2ff0 MB |
52 | #ifdef CONFIG_REGMAP |
53 | ||
141eba2e SW |
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 | ||
76aad392 DC |
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 | /* | |
75 | * A table of ranges including some yes ranges and some no ranges. | |
76 | * If a register belongs to a no_range, the corresponding check function | |
77 | * will return false. If a register belongs to a yes range, the corresponding | |
78 | * check function will return true. "no_ranges" are searched first. | |
79 | * | |
80 | * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges" | |
81 | * @n_yes_ranges: size of the above array | |
82 | * @no_ranges: pointer to an array of regmap ranges used as "no ranges" | |
83 | * @n_no_ranges: size of the above array | |
84 | */ | |
85 | struct regmap_access_table { | |
86 | const struct regmap_range *yes_ranges; | |
87 | unsigned int n_yes_ranges; | |
88 | const struct regmap_range *no_ranges; | |
89 | unsigned int n_no_ranges; | |
90 | }; | |
91 | ||
0d4529c5 DC |
92 | typedef void (*regmap_lock)(void *); |
93 | typedef void (*regmap_unlock)(void *); | |
94 | ||
dd898b20 MB |
95 | /** |
96 | * Configuration for the register map of a device. | |
97 | * | |
d3c242e1 SW |
98 | * @name: Optional name of the regmap. Useful when a device has multiple |
99 | * register regions. | |
100 | * | |
dd898b20 | 101 | * @reg_bits: Number of bits in a register address, mandatory. |
f01ee60f SW |
102 | * @reg_stride: The register address stride. Valid register addresses are a |
103 | * multiple of this value. If set to 0, a value of 1 will be | |
104 | * used. | |
82159ba8 | 105 | * @pad_bits: Number of bits of padding between register and value. |
dd898b20 | 106 | * @val_bits: Number of bits in a register value, mandatory. |
2e2ae66d | 107 | * |
3566cc9d | 108 | * @writeable_reg: Optional callback returning true if the register |
76aad392 DC |
109 | * can be written to. If this field is NULL but wr_table |
110 | * (see below) is not, the check is performed on such table | |
111 | * (a register is writeable if it belongs to one of the ranges | |
112 | * specified by wr_table). | |
3566cc9d | 113 | * @readable_reg: Optional callback returning true if the register |
76aad392 DC |
114 | * can be read from. If this field is NULL but rd_table |
115 | * (see below) is not, the check is performed on such table | |
116 | * (a register is readable if it belongs to one of the ranges | |
117 | * specified by rd_table). | |
3566cc9d | 118 | * @volatile_reg: Optional callback returning true if the register |
76aad392 DC |
119 | * value can't be cached. If this field is NULL but |
120 | * volatile_table (see below) is not, the check is performed on | |
121 | * such table (a register is volatile if it belongs to one of | |
122 | * the ranges specified by volatile_table). | |
3566cc9d | 123 | * @precious_reg: Optional callback returning true if the rgister |
76aad392 DC |
124 | * should not be read outside of a call from the driver |
125 | * (eg, a clear on read interrupt status register). If this | |
126 | * field is NULL but precious_table (see below) is not, the | |
127 | * check is performed on such table (a register is precious if | |
128 | * it belongs to one of the ranges specified by precious_table). | |
129 | * @lock: Optional lock callback (overrides regmap's default lock | |
130 | * function, based on spinlock or mutex). | |
131 | * @unlock: As above for unlocking. | |
132 | * @lock_arg: this field is passed as the only argument of lock/unlock | |
133 | * functions (ignored in case regular lock/unlock functions | |
134 | * are not overridden). | |
d2a5884a AS |
135 | * @reg_read: Optional callback that if filled will be used to perform |
136 | * all the reads from the registers. Should only be provided for | |
137 | * devices whos read operation cannot be represented as a simple read | |
138 | * operation on a bus such as SPI, I2C, etc. Most of the devices do | |
139 | * not need this. | |
140 | * @reg_write: Same as above for writing. | |
141 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex | |
142 | * to perform locking. This field is ignored if custom lock/unlock | |
143 | * functions are used (see fields lock/unlock of struct regmap_config). | |
144 | * This field is a duplicate of a similar file in | |
145 | * 'struct regmap_bus' and serves exact same purpose. | |
146 | * Use it only for "no-bus" cases. | |
bd20eb54 | 147 | * @max_register: Optional, specifies the maximum valid register index. |
76aad392 DC |
148 | * @wr_table: Optional, points to a struct regmap_access_table specifying |
149 | * valid ranges for write access. | |
150 | * @rd_table: As above, for read access. | |
151 | * @volatile_table: As above, for volatile registers. | |
152 | * @precious_table: As above, for precious registers. | |
bd20eb54 MB |
153 | * @reg_defaults: Power on reset values for registers (for use with |
154 | * register cache support). | |
155 | * @num_reg_defaults: Number of elements in reg_defaults. | |
6f306441 LPC |
156 | * |
157 | * @read_flag_mask: Mask to be set in the top byte of the register when doing | |
158 | * a read. | |
159 | * @write_flag_mask: Mask to be set in the top byte of the register when doing | |
160 | * a write. If both read_flag_mask and write_flag_mask are | |
161 | * empty the regmap_bus default masks are used. | |
2e33caf1 AJ |
162 | * @use_single_rw: If set, converts the bulk read and write operations into |
163 | * a series of single read and write operations. This is useful | |
164 | * for device that does not support bulk read and write. | |
9fabe24e DP |
165 | * |
166 | * @cache_type: The actual cache type. | |
167 | * @reg_defaults_raw: Power on reset values for registers (for use with | |
168 | * register cache support). | |
169 | * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. | |
141eba2e SW |
170 | * @reg_format_endian: Endianness for formatted register addresses. If this is |
171 | * DEFAULT, the @reg_format_endian_default value from the | |
172 | * regmap bus is used. | |
173 | * @val_format_endian: Endianness for formatted register values. If this is | |
174 | * DEFAULT, the @reg_format_endian_default value from the | |
175 | * regmap bus is used. | |
6863ca62 KG |
176 | * |
177 | * @ranges: Array of configuration entries for virtual address ranges. | |
178 | * @num_ranges: Number of range configuration entries. | |
dd898b20 | 179 | */ |
b83a313b | 180 | struct regmap_config { |
d3c242e1 SW |
181 | const char *name; |
182 | ||
b83a313b | 183 | int reg_bits; |
f01ee60f | 184 | int reg_stride; |
82159ba8 | 185 | int pad_bits; |
b83a313b | 186 | int val_bits; |
2e2ae66d | 187 | |
2e2ae66d MB |
188 | bool (*writeable_reg)(struct device *dev, unsigned int reg); |
189 | bool (*readable_reg)(struct device *dev, unsigned int reg); | |
190 | bool (*volatile_reg)(struct device *dev, unsigned int reg); | |
18694886 | 191 | bool (*precious_reg)(struct device *dev, unsigned int reg); |
0d4529c5 DC |
192 | regmap_lock lock; |
193 | regmap_unlock unlock; | |
194 | void *lock_arg; | |
bd20eb54 | 195 | |
d2a5884a AS |
196 | int (*reg_read)(void *context, unsigned int reg, unsigned int *val); |
197 | int (*reg_write)(void *context, unsigned int reg, unsigned int val); | |
198 | ||
199 | bool fast_io; | |
200 | ||
bd20eb54 | 201 | unsigned int max_register; |
76aad392 DC |
202 | const struct regmap_access_table *wr_table; |
203 | const struct regmap_access_table *rd_table; | |
204 | const struct regmap_access_table *volatile_table; | |
205 | const struct regmap_access_table *precious_table; | |
720e4616 | 206 | const struct reg_default *reg_defaults; |
9fabe24e DP |
207 | unsigned int num_reg_defaults; |
208 | enum regcache_type cache_type; | |
209 | const void *reg_defaults_raw; | |
210 | unsigned int num_reg_defaults_raw; | |
6f306441 LPC |
211 | |
212 | u8 read_flag_mask; | |
213 | u8 write_flag_mask; | |
2e33caf1 AJ |
214 | |
215 | bool use_single_rw; | |
141eba2e SW |
216 | |
217 | enum regmap_endian reg_format_endian; | |
218 | enum regmap_endian val_format_endian; | |
38e23194 | 219 | |
6863ca62 | 220 | const struct regmap_range_cfg *ranges; |
e3549cd0 | 221 | unsigned int num_ranges; |
6863ca62 KG |
222 | }; |
223 | ||
224 | /** | |
225 | * Configuration for indirectly accessed or paged registers. | |
226 | * Registers, mapped to this virtual range, are accessed in two steps: | |
227 | * 1. page selector register update; | |
228 | * 2. access through data window registers. | |
229 | * | |
d058bb49 MB |
230 | * @name: Descriptive name for diagnostics |
231 | * | |
6863ca62 KG |
232 | * @range_min: Address of the lowest register address in virtual range. |
233 | * @range_max: Address of the highest register in virtual range. | |
234 | * | |
235 | * @page_sel_reg: Register with selector field. | |
236 | * @page_sel_mask: Bit shift for selector value. | |
237 | * @page_sel_shift: Bit mask for selector value. | |
238 | * | |
239 | * @window_start: Address of first (lowest) register in data window. | |
240 | * @window_len: Number of registers in data window. | |
241 | */ | |
242 | struct regmap_range_cfg { | |
d058bb49 MB |
243 | const char *name; |
244 | ||
6863ca62 KG |
245 | /* Registers of virtual address range */ |
246 | unsigned int range_min; | |
247 | unsigned int range_max; | |
248 | ||
249 | /* Page selector for indirect addressing */ | |
250 | unsigned int selector_reg; | |
251 | unsigned int selector_mask; | |
252 | int selector_shift; | |
253 | ||
254 | /* Data window (per each page) */ | |
255 | unsigned int window_start; | |
256 | unsigned int window_len; | |
b83a313b MB |
257 | }; |
258 | ||
0d509f2b MB |
259 | struct regmap_async; |
260 | ||
0135bbcc | 261 | typedef int (*regmap_hw_write)(void *context, const void *data, |
b83a313b | 262 | size_t count); |
0135bbcc | 263 | typedef int (*regmap_hw_gather_write)(void *context, |
b83a313b MB |
264 | const void *reg, size_t reg_len, |
265 | const void *val, size_t val_len); | |
0d509f2b MB |
266 | typedef int (*regmap_hw_async_write)(void *context, |
267 | const void *reg, size_t reg_len, | |
268 | const void *val, size_t val_len, | |
269 | struct regmap_async *async); | |
0135bbcc | 270 | typedef int (*regmap_hw_read)(void *context, |
b83a313b MB |
271 | const void *reg_buf, size_t reg_size, |
272 | void *val_buf, size_t val_size); | |
0d509f2b | 273 | typedef struct regmap_async *(*regmap_hw_async_alloc)(void); |
0135bbcc | 274 | typedef void (*regmap_hw_free_context)(void *context); |
b83a313b MB |
275 | |
276 | /** | |
277 | * Description of a hardware bus for the register map infrastructure. | |
278 | * | |
bacdbe07 | 279 | * @fast_io: Register IO is fast. Use a spinlock instead of a mutex |
0d4529c5 DC |
280 | * to perform locking. This field is ignored if custom lock/unlock |
281 | * functions are used (see fields lock/unlock of | |
282 | * struct regmap_config). | |
b83a313b MB |
283 | * @write: Write operation. |
284 | * @gather_write: Write operation with split register/value, return -ENOTSUPP | |
285 | * if not implemented on a given device. | |
0d509f2b MB |
286 | * @async_write: Write operation which completes asynchronously, optional and |
287 | * must serialise with respect to non-async I/O. | |
b83a313b MB |
288 | * @read: Read operation. Data is returned in the buffer used to transmit |
289 | * data. | |
0d509f2b | 290 | * @async_alloc: Allocate a regmap_async() structure. |
b83a313b MB |
291 | * @read_flag_mask: Mask to be set in the top byte of the register when doing |
292 | * a read. | |
141eba2e SW |
293 | * @reg_format_endian_default: Default endianness for formatted register |
294 | * addresses. Used when the regmap_config specifies DEFAULT. If this is | |
295 | * DEFAULT, BIG is assumed. | |
296 | * @val_format_endian_default: Default endianness for formatted register | |
297 | * values. Used when the regmap_config specifies DEFAULT. If this is | |
298 | * DEFAULT, BIG is assumed. | |
0d509f2b | 299 | * @async_size: Size of struct used for async work. |
b83a313b MB |
300 | */ |
301 | struct regmap_bus { | |
bacdbe07 | 302 | bool fast_io; |
b83a313b MB |
303 | regmap_hw_write write; |
304 | regmap_hw_gather_write gather_write; | |
0d509f2b | 305 | regmap_hw_async_write async_write; |
b83a313b | 306 | regmap_hw_read read; |
0135bbcc | 307 | regmap_hw_free_context free_context; |
0d509f2b | 308 | regmap_hw_async_alloc async_alloc; |
b83a313b | 309 | u8 read_flag_mask; |
141eba2e SW |
310 | enum regmap_endian reg_format_endian_default; |
311 | enum regmap_endian val_format_endian_default; | |
b83a313b MB |
312 | }; |
313 | ||
314 | struct regmap *regmap_init(struct device *dev, | |
315 | const struct regmap_bus *bus, | |
0135bbcc | 316 | void *bus_context, |
b83a313b | 317 | const struct regmap_config *config); |
9943fa30 MB |
318 | struct regmap *regmap_init_i2c(struct i2c_client *i2c, |
319 | const struct regmap_config *config); | |
a676f083 MB |
320 | struct regmap *regmap_init_spi(struct spi_device *dev, |
321 | const struct regmap_config *config); | |
a01779f8 JC |
322 | struct regmap *regmap_init_spmi(struct spmi_device *dev, |
323 | const struct regmap_config *config); | |
878ec67b PZ |
324 | struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, |
325 | void __iomem *regs, | |
326 | const struct regmap_config *config); | |
a676f083 | 327 | |
c0eb4676 MB |
328 | struct regmap *devm_regmap_init(struct device *dev, |
329 | const struct regmap_bus *bus, | |
0135bbcc | 330 | void *bus_context, |
c0eb4676 MB |
331 | const struct regmap_config *config); |
332 | struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, | |
333 | const struct regmap_config *config); | |
334 | struct regmap *devm_regmap_init_spi(struct spi_device *dev, | |
335 | const struct regmap_config *config); | |
a01779f8 JC |
336 | struct regmap *devm_regmap_init_spmi(struct spmi_device *dev, |
337 | const struct regmap_config *config); | |
878ec67b PZ |
338 | struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, |
339 | void __iomem *regs, | |
340 | const struct regmap_config *config); | |
341 | ||
342 | /** | |
343 | * regmap_init_mmio(): Initialise register map | |
344 | * | |
345 | * @dev: Device that will be interacted with | |
346 | * @regs: Pointer to memory-mapped IO region | |
347 | * @config: Configuration for register map | |
348 | * | |
349 | * The return value will be an ERR_PTR() on error or a valid pointer to | |
350 | * a struct regmap. | |
351 | */ | |
352 | static inline struct regmap *regmap_init_mmio(struct device *dev, | |
353 | void __iomem *regs, | |
354 | const struct regmap_config *config) | |
355 | { | |
356 | return regmap_init_mmio_clk(dev, NULL, regs, config); | |
357 | } | |
358 | ||
359 | /** | |
360 | * devm_regmap_init_mmio(): Initialise managed register map | |
361 | * | |
362 | * @dev: Device that will be interacted with | |
363 | * @regs: Pointer to memory-mapped IO region | |
364 | * @config: Configuration for register map | |
365 | * | |
366 | * The return value will be an ERR_PTR() on error or a valid pointer | |
367 | * to a struct regmap. The regmap will be automatically freed by the | |
368 | * device management code. | |
369 | */ | |
370 | static inline struct regmap *devm_regmap_init_mmio(struct device *dev, | |
371 | void __iomem *regs, | |
372 | const struct regmap_config *config) | |
373 | { | |
374 | return devm_regmap_init_mmio_clk(dev, NULL, regs, config); | |
375 | } | |
c0eb4676 | 376 | |
b83a313b | 377 | void regmap_exit(struct regmap *map); |
bf315173 MB |
378 | int regmap_reinit_cache(struct regmap *map, |
379 | const struct regmap_config *config); | |
72b39f6f | 380 | struct regmap *dev_get_regmap(struct device *dev, const char *name); |
b83a313b MB |
381 | int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); |
382 | int regmap_raw_write(struct regmap *map, unsigned int reg, | |
383 | const void *val, size_t val_len); | |
8eaeb219 LD |
384 | int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, |
385 | size_t val_count); | |
0d509f2b MB |
386 | int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
387 | const void *val, size_t val_len); | |
b83a313b MB |
388 | int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); |
389 | int regmap_raw_read(struct regmap *map, unsigned int reg, | |
390 | void *val, size_t val_len); | |
391 | int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, | |
392 | size_t val_count); | |
393 | int regmap_update_bits(struct regmap *map, unsigned int reg, | |
394 | unsigned int mask, unsigned int val); | |
018690d3 MB |
395 | int regmap_update_bits_check(struct regmap *map, unsigned int reg, |
396 | unsigned int mask, unsigned int val, | |
397 | bool *change); | |
a6539c32 | 398 | int regmap_get_val_bytes(struct regmap *map); |
0d509f2b | 399 | int regmap_async_complete(struct regmap *map); |
221ad7f2 | 400 | bool regmap_can_raw_write(struct regmap *map); |
b83a313b | 401 | |
39a58439 | 402 | int regcache_sync(struct regmap *map); |
4d4cfd16 MB |
403 | int regcache_sync_region(struct regmap *map, unsigned int min, |
404 | unsigned int max); | |
697e85bc MB |
405 | int regcache_drop_region(struct regmap *map, unsigned int min, |
406 | unsigned int max); | |
92afb286 | 407 | void regcache_cache_only(struct regmap *map, bool enable); |
6eb0f5e0 | 408 | void regcache_cache_bypass(struct regmap *map, bool enable); |
8ae0d7e8 | 409 | void regcache_mark_dirty(struct regmap *map); |
92afb286 | 410 | |
154881e5 MB |
411 | bool regmap_check_range_table(struct regmap *map, unsigned int reg, |
412 | const struct regmap_access_table *table); | |
413 | ||
22f0d90a MB |
414 | int regmap_register_patch(struct regmap *map, const struct reg_default *regs, |
415 | int num_regs); | |
416 | ||
76aad392 DC |
417 | static inline bool regmap_reg_in_range(unsigned int reg, |
418 | const struct regmap_range *range) | |
419 | { | |
420 | return reg >= range->range_min && reg <= range->range_max; | |
421 | } | |
422 | ||
423 | bool regmap_reg_in_ranges(unsigned int reg, | |
424 | const struct regmap_range *ranges, | |
425 | unsigned int nranges); | |
426 | ||
67252287 SK |
427 | /** |
428 | * Description of an register field | |
429 | * | |
430 | * @reg: Offset of the register within the regmap bank | |
431 | * @lsb: lsb of the register field. | |
432 | * @reg: msb of the register field. | |
433 | */ | |
434 | struct reg_field { | |
435 | unsigned int reg; | |
436 | unsigned int lsb; | |
437 | unsigned int msb; | |
438 | }; | |
439 | ||
440 | #define REG_FIELD(_reg, _lsb, _msb) { \ | |
441 | .reg = _reg, \ | |
442 | .lsb = _lsb, \ | |
443 | .msb = _msb, \ | |
444 | } | |
445 | ||
446 | struct regmap_field *regmap_field_alloc(struct regmap *regmap, | |
447 | struct reg_field reg_field); | |
448 | void regmap_field_free(struct regmap_field *field); | |
449 | ||
450 | struct regmap_field *devm_regmap_field_alloc(struct device *dev, | |
451 | struct regmap *regmap, struct reg_field reg_field); | |
452 | void devm_regmap_field_free(struct device *dev, struct regmap_field *field); | |
453 | ||
454 | int regmap_field_read(struct regmap_field *field, unsigned int *val); | |
455 | int regmap_field_write(struct regmap_field *field, unsigned int val); | |
76aad392 | 456 | |
f8beab2b MB |
457 | /** |
458 | * Description of an IRQ for the generic regmap irq_chip. | |
459 | * | |
460 | * @reg_offset: Offset of the status/mask register within the bank | |
461 | * @mask: Mask used to flag/control the register. | |
462 | */ | |
463 | struct regmap_irq { | |
464 | unsigned int reg_offset; | |
465 | unsigned int mask; | |
466 | }; | |
467 | ||
468 | /** | |
469 | * Description of a generic regmap irq_chip. This is not intended to | |
470 | * handle every possible interrupt controller, but it should handle a | |
471 | * substantial proportion of those that are found in the wild. | |
472 | * | |
473 | * @name: Descriptive name for IRQ controller. | |
474 | * | |
475 | * @status_base: Base status register address. | |
476 | * @mask_base: Base mask register address. | |
477 | * @ack_base: Base ack address. If zero then the chip is clear on read. | |
a43fd50d | 478 | * @wake_base: Base address for wake enables. If zero unsupported. |
022f926a | 479 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. |
2753e6f8 | 480 | * @init_ack_masked: Ack all masked interrupts once during initalization. |
68622bdf PZ |
481 | * @mask_invert: Inverted mask register: cleared bits are masked out. |
482 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. | |
0c00c50b | 483 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. |
f8beab2b MB |
484 | * |
485 | * @num_regs: Number of registers in each control bank. | |
486 | * @irqs: Descriptors for individual IRQs. Interrupt numbers are | |
487 | * assigned based on the index in the array of the interrupt. | |
488 | * @num_irqs: Number of descriptors. | |
489 | */ | |
490 | struct regmap_irq_chip { | |
491 | const char *name; | |
492 | ||
493 | unsigned int status_base; | |
494 | unsigned int mask_base; | |
495 | unsigned int ack_base; | |
a43fd50d | 496 | unsigned int wake_base; |
022f926a | 497 | unsigned int irq_reg_stride; |
f484f7a6 PZ |
498 | bool init_ack_masked:1; |
499 | bool mask_invert:1; | |
500 | bool wake_invert:1; | |
501 | bool runtime_pm:1; | |
f8beab2b MB |
502 | |
503 | int num_regs; | |
504 | ||
505 | const struct regmap_irq *irqs; | |
506 | int num_irqs; | |
507 | }; | |
508 | ||
509 | struct regmap_irq_chip_data; | |
510 | ||
511 | int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, | |
b026ddbb | 512 | int irq_base, const struct regmap_irq_chip *chip, |
f8beab2b MB |
513 | struct regmap_irq_chip_data **data); |
514 | void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); | |
209a6006 | 515 | int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); |
4af8be67 | 516 | int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); |
90f790d2 | 517 | struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); |
92afb286 | 518 | |
9cde5fcd MB |
519 | #else |
520 | ||
521 | /* | |
522 | * These stubs should only ever be called by generic code which has | |
523 | * regmap based facilities, if they ever get called at runtime | |
524 | * something is going wrong and something probably needs to select | |
525 | * REGMAP. | |
526 | */ | |
527 | ||
528 | static inline int regmap_write(struct regmap *map, unsigned int reg, | |
529 | unsigned int val) | |
530 | { | |
531 | WARN_ONCE(1, "regmap API is disabled"); | |
532 | return -EINVAL; | |
533 | } | |
534 | ||
535 | static inline int regmap_raw_write(struct regmap *map, unsigned int reg, | |
536 | const void *val, size_t val_len) | |
537 | { | |
538 | WARN_ONCE(1, "regmap API is disabled"); | |
539 | return -EINVAL; | |
540 | } | |
541 | ||
0d509f2b MB |
542 | static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, |
543 | const void *val, size_t val_len) | |
544 | { | |
545 | WARN_ONCE(1, "regmap API is disabled"); | |
546 | return -EINVAL; | |
547 | } | |
548 | ||
9cde5fcd MB |
549 | static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, |
550 | const void *val, size_t val_count) | |
551 | { | |
552 | WARN_ONCE(1, "regmap API is disabled"); | |
553 | return -EINVAL; | |
554 | } | |
555 | ||
556 | static inline int regmap_read(struct regmap *map, unsigned int reg, | |
557 | unsigned int *val) | |
558 | { | |
559 | WARN_ONCE(1, "regmap API is disabled"); | |
560 | return -EINVAL; | |
561 | } | |
562 | ||
563 | static inline int regmap_raw_read(struct regmap *map, unsigned int reg, | |
564 | void *val, size_t val_len) | |
565 | { | |
566 | WARN_ONCE(1, "regmap API is disabled"); | |
567 | return -EINVAL; | |
568 | } | |
569 | ||
570 | static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, | |
571 | void *val, size_t val_count) | |
572 | { | |
573 | WARN_ONCE(1, "regmap API is disabled"); | |
574 | return -EINVAL; | |
575 | } | |
576 | ||
577 | static inline int regmap_update_bits(struct regmap *map, unsigned int reg, | |
578 | unsigned int mask, unsigned int val) | |
579 | { | |
580 | WARN_ONCE(1, "regmap API is disabled"); | |
581 | return -EINVAL; | |
582 | } | |
583 | ||
584 | static inline int regmap_update_bits_check(struct regmap *map, | |
585 | unsigned int reg, | |
586 | unsigned int mask, unsigned int val, | |
587 | bool *change) | |
588 | { | |
589 | WARN_ONCE(1, "regmap API is disabled"); | |
590 | return -EINVAL; | |
591 | } | |
592 | ||
593 | static inline int regmap_get_val_bytes(struct regmap *map) | |
594 | { | |
595 | WARN_ONCE(1, "regmap API is disabled"); | |
596 | return -EINVAL; | |
597 | } | |
598 | ||
599 | static inline int regcache_sync(struct regmap *map) | |
600 | { | |
601 | WARN_ONCE(1, "regmap API is disabled"); | |
602 | return -EINVAL; | |
603 | } | |
604 | ||
a313f9f5 MB |
605 | static inline int regcache_sync_region(struct regmap *map, unsigned int min, |
606 | unsigned int max) | |
607 | { | |
608 | WARN_ONCE(1, "regmap API is disabled"); | |
609 | return -EINVAL; | |
610 | } | |
611 | ||
697e85bc MB |
612 | static inline int regcache_drop_region(struct regmap *map, unsigned int min, |
613 | unsigned int max) | |
614 | { | |
615 | WARN_ONCE(1, "regmap API is disabled"); | |
616 | return -EINVAL; | |
617 | } | |
618 | ||
9cde5fcd MB |
619 | static inline void regcache_cache_only(struct regmap *map, bool enable) |
620 | { | |
621 | WARN_ONCE(1, "regmap API is disabled"); | |
622 | } | |
623 | ||
624 | static inline void regcache_cache_bypass(struct regmap *map, bool enable) | |
625 | { | |
626 | WARN_ONCE(1, "regmap API is disabled"); | |
627 | } | |
628 | ||
629 | static inline void regcache_mark_dirty(struct regmap *map) | |
630 | { | |
631 | WARN_ONCE(1, "regmap API is disabled"); | |
632 | } | |
633 | ||
0d509f2b MB |
634 | static inline void regmap_async_complete(struct regmap *map) |
635 | { | |
636 | WARN_ONCE(1, "regmap API is disabled"); | |
637 | } | |
638 | ||
9cde5fcd MB |
639 | static inline int regmap_register_patch(struct regmap *map, |
640 | const struct reg_default *regs, | |
641 | int num_regs) | |
642 | { | |
643 | WARN_ONCE(1, "regmap API is disabled"); | |
644 | return -EINVAL; | |
645 | } | |
646 | ||
72b39f6f MB |
647 | static inline struct regmap *dev_get_regmap(struct device *dev, |
648 | const char *name) | |
649 | { | |
72b39f6f MB |
650 | return NULL; |
651 | } | |
652 | ||
9cde5fcd MB |
653 | #endif |
654 | ||
b83a313b | 655 | #endif |