1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef __LINUX_REGMAP_H
3 #define __LINUX_REGMAP_H
4 
5 /*
6  * Register map access API
7  *
8  * Copyright 2011 Wolfson Microelectronics plc
9  *
10  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
11  */
12 
13 #include <linux/list.h>
14 #include <linux/rbtree.h>
15 #include <linux/ktime.h>
16 #include <linux/delay.h>
17 #include <linux/err.h>
18 #include <linux/bug.h>
19 #include <linux/lockdep.h>
20 #include <linux/iopoll.h>
21 #include <linux/fwnode.h>
22 
23 struct module;
24 struct clk;
25 struct device;
26 struct device_node;
27 struct i2c_client;
28 struct i3c_device;
29 struct irq_domain;
30 struct mdio_device;
31 struct slim_device;
32 struct spi_device;
33 struct spmi_device;
34 struct regmap;
35 struct regmap_range_cfg;
36 struct regmap_field;
37 struct snd_ac97;
38 struct sdw_slave;
39 
40 /* An enum of all the supported cache types */
41 enum regcache_type {
42 	REGCACHE_NONE,
43 	REGCACHE_RBTREE,
44 	REGCACHE_COMPRESSED,
45 	REGCACHE_FLAT,
46 };
47 
48 /**
49  * struct reg_default - Default value for a register.
50  *
51  * @reg: Register address.
52  * @def: Register default value.
53  *
54  * We use an array of structs rather than a simple array as many modern devices
55  * have very sparse register maps.
56  */
57 struct reg_default {
58 	unsigned int reg;
59 	unsigned int def;
60 };
61 
62 /**
63  * struct reg_sequence - An individual write from a sequence of writes.
64  *
65  * @reg: Register address.
66  * @def: Register value.
67  * @delay_us: Delay to be applied after the register write in microseconds
68  *
69  * Register/value pairs for sequences of writes with an optional delay in
70  * microseconds to be applied after each write.
71  */
72 struct reg_sequence {
73 	unsigned int reg;
74 	unsigned int def;
75 	unsigned int delay_us;
76 };
77 
78 #define REG_SEQ(_reg, _def, _delay_us) {		\
79 				.reg = _reg,		\
80 				.def = _def,		\
81 				.delay_us = _delay_us,	\
82 				}
83 #define REG_SEQ0(_reg, _def)	REG_SEQ(_reg, _def, 0)
84 
85 /**
86  * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs
87  *
88  * @map: Regmap to read from
89  * @addr: Address to poll
90  * @val: Unsigned integer variable to read the value into
91  * @cond: Break condition (usually involving @val)
92  * @sleep_us: Maximum time to sleep between reads in us (0
93  *            tight-loops).  Should be less than ~20ms since usleep_range
94  *            is used (see Documentation/timers/timers-howto.rst).
95  * @timeout_us: Timeout in us, 0 means never timeout
96  *
97  * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
98  * error return value in case of a error read. In the two former cases,
99  * the last read value at @addr is stored in @val. Must not be called
100  * from atomic context if sleep_us or timeout_us are used.
101  *
102  * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
103  */
104 #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
105 ({ \
106 	int __ret, __tmp; \
107 	__tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \
108 			sleep_us, timeout_us, false, (map), (addr), &(val)); \
109 	__ret ?: __tmp; \
110 })
111 
112 /**
113  * regmap_read_poll_timeout_atomic - Poll until a condition is met or a timeout occurs
114  *
115  * @map: Regmap to read from
116  * @addr: Address to poll
117  * @val: Unsigned integer variable to read the value into
118  * @cond: Break condition (usually involving @val)
119  * @delay_us: Time to udelay between reads in us (0 tight-loops).
120  *            Should be less than ~10us since udelay is used
121  *            (see Documentation/timers/timers-howto.rst).
122  * @timeout_us: Timeout in us, 0 means never timeout
123  *
124  * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
125  * error return value in case of a error read. In the two former cases,
126  * the last read value at @addr is stored in @val.
127  *
128  * This is modelled after the readx_poll_timeout_atomic macros in linux/iopoll.h.
129  *
130  * Note: In general regmap cannot be used in atomic context. If you want to use
131  * this macro then first setup your regmap for atomic use (flat or no cache
132  * and MMIO regmap).
133  */
134 #define regmap_read_poll_timeout_atomic(map, addr, val, cond, delay_us, timeout_us) \
135 ({ \
136 	u64 __timeout_us = (timeout_us); \
137 	unsigned long __delay_us = (delay_us); \
138 	ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
139 	int __ret; \
140 	for (;;) { \
141 		__ret = regmap_read((map), (addr), &(val)); \
142 		if (__ret) \
143 			break; \
144 		if (cond) \
145 			break; \
146 		if ((__timeout_us) && \
147 		    ktime_compare(ktime_get(), __timeout) > 0) { \
148 			__ret = regmap_read((map), (addr), &(val)); \
149 			break; \
150 		} \
151 		if (__delay_us) \
152 			udelay(__delay_us); \
153 	} \
154 	__ret ?: ((cond) ? 0 : -ETIMEDOUT); \
155 })
156 
157 /**
158  * regmap_field_read_poll_timeout - Poll until a condition is met or timeout
159  *
160  * @field: Regmap field to read from
161  * @val: Unsigned integer variable to read the value into
162  * @cond: Break condition (usually involving @val)
163  * @sleep_us: Maximum time to sleep between reads in us (0
164  *            tight-loops).  Should be less than ~20ms since usleep_range
165  *            is used (see Documentation/timers/timers-howto.rst).
166  * @timeout_us: Timeout in us, 0 means never timeout
167  *
168  * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read
169  * error return value in case of a error read. In the two former cases,
170  * the last read value at @addr is stored in @val. Must not be called
171  * from atomic context if sleep_us or timeout_us are used.
172  *
173  * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
174  */
175 #define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \
176 ({ \
177 	int __ret, __tmp; \
178 	__tmp = read_poll_timeout(regmap_field_read, __ret, __ret || (cond), \
179 			sleep_us, timeout_us, false, (field), &(val)); \
180 	__ret ?: __tmp; \
181 })
182 
183 #ifdef CONFIG_REGMAP
184 
185 enum regmap_endian {
186 	/* Unspecified -> 0 -> Backwards compatible default */
187 	REGMAP_ENDIAN_DEFAULT = 0,
188 	REGMAP_ENDIAN_BIG,
189 	REGMAP_ENDIAN_LITTLE,
190 	REGMAP_ENDIAN_NATIVE,
191 };
192 
193 /**
194  * struct regmap_range - A register range, used for access related checks
195  *                       (readable/writeable/volatile/precious checks)
196  *
197  * @range_min: address of first register
198  * @range_max: address of last register
199  */
200 struct regmap_range {
201 	unsigned int range_min;
202 	unsigned int range_max;
203 };
204 
205 #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }
206 
207 /**
208  * struct regmap_access_table - A table of register ranges for access checks
209  *
210  * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges"
211  * @n_yes_ranges: size of the above array
212  * @no_ranges: pointer to an array of regmap ranges used as "no ranges"
213  * @n_no_ranges: size of the above array
214  *
215  * A table of ranges including some yes ranges and some no ranges.
216  * If a register belongs to a no_range, the corresponding check function
217  * will return false. If a register belongs to a yes range, the corresponding
218  * check function will return true. "no_ranges" are searched first.
219  */
220 struct regmap_access_table {
221 	const struct regmap_range *yes_ranges;
222 	unsigned int n_yes_ranges;
223 	const struct regmap_range *no_ranges;
224 	unsigned int n_no_ranges;
225 };
226 
227 typedef void (*regmap_lock)(void *);
228 typedef void (*regmap_unlock)(void *);
229 
230 /**
231  * struct regmap_config - Configuration for the register map of a device.
232  *
233  * @name: Optional name of the regmap. Useful when a device has multiple
234  *        register regions.
235  *
236  * @reg_bits: Number of bits in a register address, mandatory.
237  * @reg_stride: The register address stride. Valid register addresses are a
238  *              multiple of this value. If set to 0, a value of 1 will be
239  *              used.
240  * @reg_downshift: The number of bits to downshift the register before
241  *		   performing any operations.
242  * @reg_base: Value to be added to every register address before performing any
243  *	      operation.
244  * @pad_bits: Number of bits of padding between register and value.
245  * @val_bits: Number of bits in a register value, mandatory.
246  *
247  * @writeable_reg: Optional callback returning true if the register
248  *		   can be written to. If this field is NULL but wr_table
249  *		   (see below) is not, the check is performed on such table
250  *                 (a register is writeable if it belongs to one of the ranges
251  *                  specified by wr_table).
252  * @readable_reg: Optional callback returning true if the register
253  *		  can be read from. If this field is NULL but rd_table
254  *		   (see below) is not, the check is performed on such table
255  *                 (a register is readable if it belongs to one of the ranges
256  *                  specified by rd_table).
257  * @volatile_reg: Optional callback returning true if the register
258  *		  value can't be cached. If this field is NULL but
259  *		  volatile_table (see below) is not, the check is performed on
260  *                such table (a register is volatile if it belongs to one of
261  *                the ranges specified by volatile_table).
262  * @precious_reg: Optional callback returning true if the register
263  *		  should not be read outside of a call from the driver
264  *		  (e.g., a clear on read interrupt status register). If this
265  *                field is NULL but precious_table (see below) is not, the
266  *                check is performed on such table (a register is precious if
267  *                it belongs to one of the ranges specified by precious_table).
268  * @writeable_noinc_reg: Optional callback returning true if the register
269  *			supports multiple write operations without incrementing
270  *			the register number. If this field is NULL but
271  *			wr_noinc_table (see below) is not, the check is
272  *			performed on such table (a register is no increment
273  *			writeable if it belongs to one of the ranges specified
274  *			by wr_noinc_table).
275  * @readable_noinc_reg: Optional callback returning true if the register
276  *			supports multiple read operations without incrementing
277  *			the register number. If this field is NULL but
278  *			rd_noinc_table (see below) is not, the check is
279  *			performed on such table (a register is no increment
280  *			readable if it belongs to one of the ranges specified
281  *			by rd_noinc_table).
282  * @disable_locking: This regmap is either protected by external means or
283  *                   is guaranteed not to be accessed from multiple threads.
284  *                   Don't use any locking mechanisms.
285  * @lock:	  Optional lock callback (overrides regmap's default lock
286  *		  function, based on spinlock or mutex).
287  * @unlock:	  As above for unlocking.
288  * @lock_arg:	  this field is passed as the only argument of lock/unlock
289  *		  functions (ignored in case regular lock/unlock functions
290  *		  are not overridden).
291  * @reg_read:	  Optional callback that if filled will be used to perform
292  *           	  all the reads from the registers. Should only be provided for
293  *		  devices whose read operation cannot be represented as a simple
294  *		  read operation on a bus such as SPI, I2C, etc. Most of the
295  *		  devices do not need this.
296  * @reg_write:	  Same as above for writing.
297  * @reg_update_bits: Optional callback that if filled will be used to perform
298  *		     all the update_bits(rmw) operation. Should only be provided
299  *		     if the function require special handling with lock and reg
300  *		     handling and the operation cannot be represented as a simple
301  *		     update_bits operation on a bus such as SPI, I2C, etc.
302  * @read: Optional callback that if filled will be used to perform all the
303  *        bulk reads from the registers. Data is returned in the buffer used
304  *        to transmit data.
305  * @write: Same as above for writing.
306  * @max_raw_read: Max raw read size that can be used on the device.
307  * @max_raw_write: Max raw write size that can be used on the device.
308  * @fast_io:	  Register IO is fast. Use a spinlock instead of a mutex
309  *	     	  to perform locking. This field is ignored if custom lock/unlock
310  *	     	  functions are used (see fields lock/unlock of struct regmap_config).
311  *		  This field is a duplicate of a similar file in
312  *		  'struct regmap_bus' and serves exact same purpose.
313  *		   Use it only for "no-bus" cases.
314  * @io_port:	  Support IO port accessors. Makes sense only when MMIO vs. IO port
315  *		  access can be distinguished.
316  * @max_register: Optional, specifies the maximum valid register address.
317  * @wr_table:     Optional, points to a struct regmap_access_table specifying
318  *                valid ranges for write access.
319  * @rd_table:     As above, for read access.
320  * @volatile_table: As above, for volatile registers.
321  * @precious_table: As above, for precious registers.
322  * @wr_noinc_table: As above, for no increment writeable registers.
323  * @rd_noinc_table: As above, for no increment readable registers.
324  * @reg_defaults: Power on reset values for registers (for use with
325  *                register cache support).
326  * @num_reg_defaults: Number of elements in reg_defaults.
327  *
328  * @read_flag_mask: Mask to be set in the top bytes of the register when doing
329  *                  a read.
330  * @write_flag_mask: Mask to be set in the top bytes of the register when doing
331  *                   a write. If both read_flag_mask and write_flag_mask are
332  *                   empty and zero_flag_mask is not set the regmap_bus default
333  *                   masks are used.
334  * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even
335  *                   if they are both empty.
336  * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers.
337  *                    This can avoid load on devices which don't require strict
338  *                    orderings, but drivers should carefully add any explicit
339  *                    memory barriers when they may require them.
340  * @use_single_read: If set, converts the bulk read operation into a series of
341  *                   single read operations. This is useful for a device that
342  *                   does not support  bulk read.
343  * @use_single_write: If set, converts the bulk write operation into a series of
344  *                    single write operations. This is useful for a device that
345  *                    does not support bulk write.
346  * @can_multi_write: If set, the device supports the multi write mode of bulk
347  *                   write operations, if clear multi write requests will be
348  *                   split into individual write operations
349  *
350  * @cache_type: The actual cache type.
351  * @reg_defaults_raw: Power on reset values for registers (for use with
352  *                    register cache support).
353  * @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
354  * @reg_format_endian: Endianness for formatted register addresses. If this is
355  *                     DEFAULT, the @reg_format_endian_default value from the
356  *                     regmap bus is used.
357  * @val_format_endian: Endianness for formatted register values. If this is
358  *                     DEFAULT, the @reg_format_endian_default value from the
359  *                     regmap bus is used.
360  *
361  * @ranges: Array of configuration entries for virtual address ranges.
362  * @num_ranges: Number of range configuration entries.
363  * @use_hwlock: Indicate if a hardware spinlock should be used.
364  * @use_raw_spinlock: Indicate if a raw spinlock should be used.
365  * @hwlock_id: Specify the hardware spinlock id.
366  * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE,
367  *		 HWLOCK_IRQ or 0.
368  * @can_sleep: Optional, specifies whether regmap operations can sleep.
369  */
370 struct regmap_config {
371 	const char *name;
372 
373 	int reg_bits;
374 	int reg_stride;
375 	int reg_downshift;
376 	unsigned int reg_base;
377 	int pad_bits;
378 	int val_bits;
379 
380 	bool (*writeable_reg)(struct device *dev, unsigned int reg);
381 	bool (*readable_reg)(struct device *dev, unsigned int reg);
382 	bool (*volatile_reg)(struct device *dev, unsigned int reg);
383 	bool (*precious_reg)(struct device *dev, unsigned int reg);
384 	bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg);
385 	bool (*readable_noinc_reg)(struct device *dev, unsigned int reg);
386 
387 	bool disable_locking;
388 	regmap_lock lock;
389 	regmap_unlock unlock;
390 	void *lock_arg;
391 
392 	int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
393 	int (*reg_write)(void *context, unsigned int reg, unsigned int val);
394 	int (*reg_update_bits)(void *context, unsigned int reg,
395 			       unsigned int mask, unsigned int val);
396 	/* Bulk read/write */
397 	int (*read)(void *context, const void *reg_buf, size_t reg_size,
398 		    void *val_buf, size_t val_size);
399 	int (*write)(void *context, const void *data, size_t count);
400 	size_t max_raw_read;
401 	size_t max_raw_write;
402 
403 	bool fast_io;
404 	bool io_port;
405 
406 	unsigned int max_register;
407 	const struct regmap_access_table *wr_table;
408 	const struct regmap_access_table *rd_table;
409 	const struct regmap_access_table *volatile_table;
410 	const struct regmap_access_table *precious_table;
411 	const struct regmap_access_table *wr_noinc_table;
412 	const struct regmap_access_table *rd_noinc_table;
413 	const struct reg_default *reg_defaults;
414 	unsigned int num_reg_defaults;
415 	enum regcache_type cache_type;
416 	const void *reg_defaults_raw;
417 	unsigned int num_reg_defaults_raw;
418 
419 	unsigned long read_flag_mask;
420 	unsigned long write_flag_mask;
421 	bool zero_flag_mask;
422 
423 	bool use_single_read;
424 	bool use_single_write;
425 	bool use_relaxed_mmio;
426 	bool can_multi_write;
427 
428 	enum regmap_endian reg_format_endian;
429 	enum regmap_endian val_format_endian;
430 
431 	const struct regmap_range_cfg *ranges;
432 	unsigned int num_ranges;
433 
434 	bool use_hwlock;
435 	bool use_raw_spinlock;
436 	unsigned int hwlock_id;
437 	unsigned int hwlock_mode;
438 
439 	bool can_sleep;
440 };
441 
442 /**
443  * struct regmap_range_cfg - Configuration for indirectly accessed or paged
444  *                           registers.
445  *
446  * @name: Descriptive name for diagnostics
447  *
448  * @range_min: Address of the lowest register address in virtual range.
449  * @range_max: Address of the highest register in virtual range.
450  *
451  * @selector_reg: Register with selector field.
452  * @selector_mask: Bit mask for selector value.
453  * @selector_shift: Bit shift for selector value.
454  *
455  * @window_start: Address of first (lowest) register in data window.
456  * @window_len: Number of registers in data window.
457  *
458  * Registers, mapped to this virtual range, are accessed in two steps:
459  *     1. page selector register update;
460  *     2. access through data window registers.
461  */
462 struct regmap_range_cfg {
463 	const char *name;
464 
465 	/* Registers of virtual address range */
466 	unsigned int range_min;
467 	unsigned int range_max;
468 
469 	/* Page selector for indirect addressing */
470 	unsigned int selector_reg;
471 	unsigned int selector_mask;
472 	int selector_shift;
473 
474 	/* Data window (per each page) */
475 	unsigned int window_start;
476 	unsigned int window_len;
477 };
478 
479 struct regmap_async;
480 
481 typedef int (*regmap_hw_write)(void *context, const void *data,
482 			       size_t count);
483 typedef int (*regmap_hw_gather_write)(void *context,
484 				      const void *reg, size_t reg_len,
485 				      const void *val, size_t val_len);
486 typedef int (*regmap_hw_async_write)(void *context,
487 				     const void *reg, size_t reg_len,
488 				     const void *val, size_t val_len,
489 				     struct regmap_async *async);
490 typedef int (*regmap_hw_read)(void *context,
491 			      const void *reg_buf, size_t reg_size,
492 			      void *val_buf, size_t val_size);
493 typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
494 				  unsigned int *val);
495 typedef int (*regmap_hw_reg_noinc_read)(void *context, unsigned int reg,
496 					void *val, size_t val_count);
497 typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
498 				   unsigned int val);
499 typedef int (*regmap_hw_reg_noinc_write)(void *context, unsigned int reg,
500 					 const void *val, size_t val_count);
501 typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg,
502 					 unsigned int mask, unsigned int val);
503 typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
504 typedef void (*regmap_hw_free_context)(void *context);
505 
506 /**
507  * struct regmap_bus - Description of a hardware bus for the register map
508  *                     infrastructure.
509  *
510  * @fast_io: Register IO is fast. Use a spinlock instead of a mutex
511  *	     to perform locking. This field is ignored if custom lock/unlock
512  *	     functions are used (see fields lock/unlock of
513  *	     struct regmap_config).
514  * @write: Write operation.
515  * @gather_write: Write operation with split register/value, return -ENOTSUPP
516  *                if not implemented  on a given device.
517  * @async_write: Write operation which completes asynchronously, optional and
518  *               must serialise with respect to non-async I/O.
519  * @reg_write: Write a single register value to the given register address. This
520  *             write operation has to complete when returning from the function.
521  * @reg_write_noinc: Write multiple register value to the same register. This
522  *             write operation has to complete when returning from the function.
523  * @reg_update_bits: Update bits operation to be used against volatile
524  *                   registers, intended for devices supporting some mechanism
525  *                   for setting clearing bits without having to
526  *                   read/modify/write.
527  * @read: Read operation.  Data is returned in the buffer used to transmit
528  *         data.
529  * @reg_read: Read a single register value from a given register address.
530  * @free_context: Free context.
531  * @async_alloc: Allocate a regmap_async() structure.
532  * @read_flag_mask: Mask to be set in the top byte of the register when doing
533  *                  a read.
534  * @reg_format_endian_default: Default endianness for formatted register
535  *     addresses. Used when the regmap_config specifies DEFAULT. If this is
536  *     DEFAULT, BIG is assumed.
537  * @val_format_endian_default: Default endianness for formatted register
538  *     values. Used when the regmap_config specifies DEFAULT. If this is
539  *     DEFAULT, BIG is assumed.
540  * @max_raw_read: Max raw read size that can be used on the bus.
541  * @max_raw_write: Max raw write size that can be used on the bus.
542  * @free_on_exit: kfree this on exit of regmap
543  */
544 struct regmap_bus {
545 	bool fast_io;
546 	regmap_hw_write write;
547 	regmap_hw_gather_write gather_write;
548 	regmap_hw_async_write async_write;
549 	regmap_hw_reg_write reg_write;
550 	regmap_hw_reg_noinc_write reg_noinc_write;
551 	regmap_hw_reg_update_bits reg_update_bits;
552 	regmap_hw_read read;
553 	regmap_hw_reg_read reg_read;
554 	regmap_hw_reg_noinc_read reg_noinc_read;
555 	regmap_hw_free_context free_context;
556 	regmap_hw_async_alloc async_alloc;
557 	u8 read_flag_mask;
558 	enum regmap_endian reg_format_endian_default;
559 	enum regmap_endian val_format_endian_default;
560 	size_t max_raw_read;
561 	size_t max_raw_write;
562 	bool free_on_exit;
563 };
564 
565 /*
566  * __regmap_init functions.
567  *
568  * These functions take a lock key and name parameter, and should not be called
569  * directly. Instead, use the regmap_init macros that generate a key and name
570  * for each call.
571  */
572 struct regmap *__regmap_init(struct device *dev,
573 			     const struct regmap_bus *bus,
574 			     void *bus_context,
575 			     const struct regmap_config *config,
576 			     struct lock_class_key *lock_key,
577 			     const char *lock_name);
578 struct regmap *__regmap_init_i2c(struct i2c_client *i2c,
579 				 const struct regmap_config *config,
580 				 struct lock_class_key *lock_key,
581 				 const char *lock_name);
582 struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev,
583 				 const struct regmap_config *config,
584 				 struct lock_class_key *lock_key,
585 				 const char *lock_name);
586 struct regmap *__regmap_init_sccb(struct i2c_client *i2c,
587 				  const struct regmap_config *config,
588 				  struct lock_class_key *lock_key,
589 				  const char *lock_name);
590 struct regmap *__regmap_init_slimbus(struct slim_device *slimbus,
591 				 const struct regmap_config *config,
592 				 struct lock_class_key *lock_key,
593 				 const char *lock_name);
594 struct regmap *__regmap_init_spi(struct spi_device *dev,
595 				 const struct regmap_config *config,
596 				 struct lock_class_key *lock_key,
597 				 const char *lock_name);
598 struct regmap *__regmap_init_spmi_base(struct spmi_device *dev,
599 				       const struct regmap_config *config,
600 				       struct lock_class_key *lock_key,
601 				       const char *lock_name);
602 struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev,
603 				      const struct regmap_config *config,
604 				      struct lock_class_key *lock_key,
605 				      const char *lock_name);
606 struct regmap *__regmap_init_w1(struct device *w1_dev,
607 				 const struct regmap_config *config,
608 				 struct lock_class_key *lock_key,
609 				 const char *lock_name);
610 struct regmap *__regmap_init_mmio_clk(struct device *dev, 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 *__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);
619 struct regmap *__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);
623 struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw,
624 				     const struct regmap_config *config,
625 				     struct lock_class_key *lock_key,
626 				     const char *lock_name);
627 struct regmap *__regmap_init_spi_avmm(struct spi_device *spi,
628 				      const struct regmap_config *config,
629 				      struct lock_class_key *lock_key,
630 				      const char *lock_name);
631 
632 struct regmap *__devm_regmap_init(struct device *dev,
633 				  const struct regmap_bus *bus,
634 				  void *bus_context,
635 				  const struct regmap_config *config,
636 				  struct lock_class_key *lock_key,
637 				  const char *lock_name);
638 struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c,
639 				      const struct regmap_config *config,
640 				      struct lock_class_key *lock_key,
641 				      const char *lock_name);
642 struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev,
643 				      const struct regmap_config *config,
644 				      struct lock_class_key *lock_key,
645 				      const char *lock_name);
646 struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c,
647 				       const struct regmap_config *config,
648 				       struct lock_class_key *lock_key,
649 				       const char *lock_name);
650 struct regmap *__devm_regmap_init_spi(struct spi_device *dev,
651 				      const struct regmap_config *config,
652 				      struct lock_class_key *lock_key,
653 				      const char *lock_name);
654 struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev,
655 					    const struct regmap_config *config,
656 					    struct lock_class_key *lock_key,
657 					    const char *lock_name);
658 struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev,
659 					   const struct regmap_config *config,
660 					   struct lock_class_key *lock_key,
661 					   const char *lock_name);
662 struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
663 				      const struct regmap_config *config,
664 				      struct lock_class_key *lock_key,
665 				      const char *lock_name);
666 struct regmap *__devm_regmap_init_mmio_clk(struct device *dev,
667 					   const char *clk_id,
668 					   void __iomem *regs,
669 					   const struct regmap_config *config,
670 					   struct lock_class_key *lock_key,
671 					   const char *lock_name);
672 struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
673 				       const struct regmap_config *config,
674 				       struct lock_class_key *lock_key,
675 				       const char *lock_name);
676 struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw,
677 				 const struct regmap_config *config,
678 				 struct lock_class_key *lock_key,
679 				 const char *lock_name);
680 struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw,
681 					  const struct regmap_config *config,
682 					  struct lock_class_key *lock_key,
683 					  const char *lock_name);
684 struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus,
685 				 const struct regmap_config *config,
686 				 struct lock_class_key *lock_key,
687 				 const char *lock_name);
688 struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,
689 				 const struct regmap_config *config,
690 				 struct lock_class_key *lock_key,
691 				 const char *lock_name);
692 struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi,
693 					   const struct regmap_config *config,
694 					   struct lock_class_key *lock_key,
695 					   const char *lock_name);
696 /*
697  * Wrapper for regmap_init macros to include a unique lockdep key and name
698  * for each call. No-op if CONFIG_LOCKDEP is not set.
699  *
700  * @fn: Real function to call (in the form __[*_]regmap_init[_*])
701  * @name: Config variable name (#config in the calling macro)
702  **/
703 #ifdef CONFIG_LOCKDEP
704 #define __regmap_lockdep_wrapper(fn, name, ...)				\
705 (									\
706 	({								\
707 		static struct lock_class_key _key;			\
708 		fn(__VA_ARGS__, &_key,					\
709 			KBUILD_BASENAME ":"				\
710 			__stringify(__LINE__) ":"			\
711 			"(" name ")->lock");				\
712 	})								\
713 )
714 #else
715 #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL)
716 #endif
717 
718 /**
719  * regmap_init() - Initialise register map
720  *
721  * @dev: Device that will be interacted with
722  * @bus: Bus-specific callbacks to use with device
723  * @bus_context: Data passed to bus-specific callbacks
724  * @config: Configuration for register map
725  *
726  * The return value will be an ERR_PTR() on error or a valid pointer to
727  * a struct regmap.  This function should generally not be called
728  * directly, it should be called by bus-specific init functions.
729  */
730 #define regmap_init(dev, bus, bus_context, config)			\
731 	__regmap_lockdep_wrapper(__regmap_init, #config,		\
732 				dev, bus, bus_context, config)
733 int regmap_attach_dev(struct device *dev, struct regmap *map,
734 		      const struct regmap_config *config);
735 
736 /**
737  * regmap_init_i2c() - Initialise register map
738  *
739  * @i2c: Device that will be interacted with
740  * @config: Configuration for register map
741  *
742  * The return value will be an ERR_PTR() on error or a valid pointer to
743  * a struct regmap.
744  */
745 #define regmap_init_i2c(i2c, config)					\
746 	__regmap_lockdep_wrapper(__regmap_init_i2c, #config,		\
747 				i2c, config)
748 
749 /**
750  * regmap_init_mdio() - Initialise register map
751  *
752  * @mdio_dev: Device that will be interacted with
753  * @config: Configuration for register map
754  *
755  * The return value will be an ERR_PTR() on error or a valid pointer to
756  * a struct regmap.
757  */
758 #define regmap_init_mdio(mdio_dev, config)				\
759 	__regmap_lockdep_wrapper(__regmap_init_mdio, #config,		\
760 				mdio_dev, config)
761 
762 /**
763  * regmap_init_sccb() - Initialise register map
764  *
765  * @i2c: Device that will be interacted with
766  * @config: Configuration for register map
767  *
768  * The return value will be an ERR_PTR() on error or a valid pointer to
769  * a struct regmap.
770  */
771 #define regmap_init_sccb(i2c, config)					\
772 	__regmap_lockdep_wrapper(__regmap_init_sccb, #config,		\
773 				i2c, config)
774 
775 /**
776  * regmap_init_slimbus() - Initialise register map
777  *
778  * @slimbus: Device that will be interacted with
779  * @config: Configuration for register map
780  *
781  * The return value will be an ERR_PTR() on error or a valid pointer to
782  * a struct regmap.
783  */
784 #define regmap_init_slimbus(slimbus, config)				\
785 	__regmap_lockdep_wrapper(__regmap_init_slimbus, #config,	\
786 				slimbus, config)
787 
788 /**
789  * regmap_init_spi() - Initialise register map
790  *
791  * @dev: Device that will be interacted with
792  * @config: Configuration for register map
793  *
794  * The return value will be an ERR_PTR() on error or a valid pointer to
795  * a struct regmap.
796  */
797 #define regmap_init_spi(dev, config)					\
798 	__regmap_lockdep_wrapper(__regmap_init_spi, #config,		\
799 				dev, config)
800 
801 /**
802  * regmap_init_spmi_base() - Create regmap for the Base register space
803  *
804  * @dev:	SPMI device that will be interacted with
805  * @config:	Configuration for register map
806  *
807  * The return value will be an ERR_PTR() on error or a valid pointer to
808  * a struct regmap.
809  */
810 #define regmap_init_spmi_base(dev, config)				\
811 	__regmap_lockdep_wrapper(__regmap_init_spmi_base, #config,	\
812 				dev, config)
813 
814 /**
815  * regmap_init_spmi_ext() - Create regmap for Ext register space
816  *
817  * @dev:	Device that will be interacted with
818  * @config:	Configuration for register map
819  *
820  * The return value will be an ERR_PTR() on error or a valid pointer to
821  * a struct regmap.
822  */
823 #define regmap_init_spmi_ext(dev, config)				\
824 	__regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config,	\
825 				dev, config)
826 
827 /**
828  * regmap_init_w1() - Initialise register map
829  *
830  * @w1_dev: Device that will be interacted with
831  * @config: Configuration for register map
832  *
833  * The return value will be an ERR_PTR() on error or a valid pointer to
834  * a struct regmap.
835  */
836 #define regmap_init_w1(w1_dev, config)					\
837 	__regmap_lockdep_wrapper(__regmap_init_w1, #config,		\
838 				w1_dev, config)
839 
840 /**
841  * regmap_init_mmio_clk() - Initialise register map with register clock
842  *
843  * @dev: Device that will be interacted with
844  * @clk_id: register clock consumer ID
845  * @regs: Pointer to memory-mapped IO region
846  * @config: Configuration for register map
847  *
848  * The return value will be an ERR_PTR() on error or a valid pointer to
849  * a struct regmap.
850  */
851 #define regmap_init_mmio_clk(dev, clk_id, regs, config)			\
852 	__regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config,	\
853 				dev, clk_id, regs, config)
854 
855 /**
856  * regmap_init_mmio() - Initialise register map
857  *
858  * @dev: Device that will be interacted with
859  * @regs: Pointer to memory-mapped IO region
860  * @config: Configuration for register map
861  *
862  * The return value will be an ERR_PTR() on error or a valid pointer to
863  * a struct regmap.
864  */
865 #define regmap_init_mmio(dev, regs, config)		\
866 	regmap_init_mmio_clk(dev, NULL, regs, config)
867 
868 /**
869  * regmap_init_ac97() - Initialise AC'97 register map
870  *
871  * @ac97: Device that will be interacted with
872  * @config: Configuration for register map
873  *
874  * The return value will be an ERR_PTR() on error or a valid pointer to
875  * a struct regmap.
876  */
877 #define regmap_init_ac97(ac97, config)					\
878 	__regmap_lockdep_wrapper(__regmap_init_ac97, #config,		\
879 				ac97, config)
880 bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
881 
882 /**
883  * regmap_init_sdw() - Initialise register map
884  *
885  * @sdw: Device that will be interacted with
886  * @config: Configuration for register map
887  *
888  * The return value will be an ERR_PTR() on error or a valid pointer to
889  * a struct regmap.
890  */
891 #define regmap_init_sdw(sdw, config)					\
892 	__regmap_lockdep_wrapper(__regmap_init_sdw, #config,		\
893 				sdw, config)
894 
895 /**
896  * regmap_init_sdw_mbq() - Initialise register map
897  *
898  * @sdw: Device that will be interacted with
899  * @config: Configuration for register map
900  *
901  * The return value will be an ERR_PTR() on error or a valid pointer to
902  * a struct regmap.
903  */
904 #define regmap_init_sdw_mbq(sdw, config)					\
905 	__regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config,		\
906 				sdw, config)
907 
908 /**
909  * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
910  * to AVMM Bus Bridge
911  *
912  * @spi: Device that will be interacted with
913  * @config: Configuration for register map
914  *
915  * The return value will be an ERR_PTR() on error or a valid pointer
916  * to a struct regmap.
917  */
918 #define regmap_init_spi_avmm(spi, config)					\
919 	__regmap_lockdep_wrapper(__regmap_init_spi_avmm, #config,		\
920 				 spi, config)
921 
922 /**
923  * devm_regmap_init() - Initialise managed register map
924  *
925  * @dev: Device that will be interacted with
926  * @bus: Bus-specific callbacks to use with device
927  * @bus_context: Data passed to bus-specific callbacks
928  * @config: Configuration for register map
929  *
930  * The return value will be an ERR_PTR() on error or a valid pointer
931  * to a struct regmap.  This function should generally not be called
932  * directly, it should be called by bus-specific init functions.  The
933  * map will be automatically freed by the device management code.
934  */
935 #define devm_regmap_init(dev, bus, bus_context, config)			\
936 	__regmap_lockdep_wrapper(__devm_regmap_init, #config,		\
937 				dev, bus, bus_context, config)
938 
939 /**
940  * devm_regmap_init_i2c() - Initialise managed register map
941  *
942  * @i2c: Device that will be interacted with
943  * @config: Configuration for register map
944  *
945  * The return value will be an ERR_PTR() on error or a valid pointer
946  * to a struct regmap.  The regmap will be automatically freed by the
947  * device management code.
948  */
949 #define devm_regmap_init_i2c(i2c, config)				\
950 	__regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config,	\
951 				i2c, config)
952 
953 /**
954  * devm_regmap_init_mdio() - Initialise managed register map
955  *
956  * @mdio_dev: Device that will be interacted with
957  * @config: Configuration for register map
958  *
959  * The return value will be an ERR_PTR() on error or a valid pointer
960  * to a struct regmap.  The regmap will be automatically freed by the
961  * device management code.
962  */
963 #define devm_regmap_init_mdio(mdio_dev, config)				\
964 	__regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config,	\
965 				mdio_dev, config)
966 
967 /**
968  * devm_regmap_init_sccb() - Initialise managed register map
969  *
970  * @i2c: Device that will be interacted with
971  * @config: Configuration for register map
972  *
973  * The return value will be an ERR_PTR() on error or a valid pointer
974  * to a struct regmap.  The regmap will be automatically freed by the
975  * device management code.
976  */
977 #define devm_regmap_init_sccb(i2c, config)				\
978 	__regmap_lockdep_wrapper(__devm_regmap_init_sccb, #config,	\
979 				i2c, config)
980 
981 /**
982  * devm_regmap_init_spi() - Initialise register map
983  *
984  * @dev: Device that will be interacted with
985  * @config: Configuration for register map
986  *
987  * The return value will be an ERR_PTR() on error or a valid pointer
988  * to a struct regmap.  The map will be automatically freed by the
989  * device management code.
990  */
991 #define devm_regmap_init_spi(dev, config)				\
992 	__regmap_lockdep_wrapper(__devm_regmap_init_spi, #config,	\
993 				dev, config)
994 
995 /**
996  * devm_regmap_init_spmi_base() - Create managed regmap for Base register space
997  *
998  * @dev:	SPMI device that will be interacted with
999  * @config:	Configuration for register map
1000  *
1001  * The return value will be an ERR_PTR() on error or a valid pointer
1002  * to a struct regmap.  The regmap will be automatically freed by the
1003  * device management code.
1004  */
1005 #define devm_regmap_init_spmi_base(dev, config)				\
1006 	__regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config,	\
1007 				dev, config)
1008 
1009 /**
1010  * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space
1011  *
1012  * @dev:	SPMI device that will be interacted with
1013  * @config:	Configuration for register map
1014  *
1015  * The return value will be an ERR_PTR() on error or a valid pointer
1016  * to a struct regmap.  The regmap will be automatically freed by the
1017  * device management code.
1018  */
1019 #define devm_regmap_init_spmi_ext(dev, config)				\
1020 	__regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config,	\
1021 				dev, config)
1022 
1023 /**
1024  * devm_regmap_init_w1() - Initialise managed register map
1025  *
1026  * @w1_dev: Device that will be interacted with
1027  * @config: Configuration for register map
1028  *
1029  * The return value will be an ERR_PTR() on error or a valid pointer
1030  * to a struct regmap.  The regmap will be automatically freed by the
1031  * device management code.
1032  */
1033 #define devm_regmap_init_w1(w1_dev, config)				\
1034 	__regmap_lockdep_wrapper(__devm_regmap_init_w1, #config,	\
1035 				w1_dev, config)
1036 /**
1037  * devm_regmap_init_mmio_clk() - Initialise managed register map with clock
1038  *
1039  * @dev: Device that will be interacted with
1040  * @clk_id: register clock consumer ID
1041  * @regs: Pointer to memory-mapped IO region
1042  * @config: Configuration for register map
1043  *
1044  * The return value will be an ERR_PTR() on error or a valid pointer
1045  * to a struct regmap.  The regmap will be automatically freed by the
1046  * device management code.
1047  */
1048 #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config)		\
1049 	__regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config,	\
1050 				dev, clk_id, regs, config)
1051 
1052 /**
1053  * devm_regmap_init_mmio() - Initialise managed register map
1054  *
1055  * @dev: Device that will be interacted with
1056  * @regs: Pointer to memory-mapped IO region
1057  * @config: Configuration for register map
1058  *
1059  * The return value will be an ERR_PTR() on error or a valid pointer
1060  * to a struct regmap.  The regmap will be automatically freed by the
1061  * device management code.
1062  */
1063 #define devm_regmap_init_mmio(dev, regs, config)		\
1064 	devm_regmap_init_mmio_clk(dev, NULL, regs, config)
1065 
1066 /**
1067  * devm_regmap_init_ac97() - Initialise AC'97 register map
1068  *
1069  * @ac97: Device that will be interacted with
1070  * @config: Configuration for register map
1071  *
1072  * The return value will be an ERR_PTR() on error or a valid pointer
1073  * to a struct regmap.  The regmap will be automatically freed by the
1074  * device management code.
1075  */
1076 #define devm_regmap_init_ac97(ac97, config)				\
1077 	__regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config,	\
1078 				ac97, config)
1079 
1080 /**
1081  * devm_regmap_init_sdw() - Initialise managed register map
1082  *
1083  * @sdw: Device that will be interacted with
1084  * @config: Configuration for register map
1085  *
1086  * The return value will be an ERR_PTR() on error or a valid pointer
1087  * to a struct regmap. The regmap will be automatically freed by the
1088  * device management code.
1089  */
1090 #define devm_regmap_init_sdw(sdw, config)				\
1091 	__regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config,	\
1092 				sdw, config)
1093 
1094 /**
1095  * devm_regmap_init_sdw_mbq() - Initialise managed register map
1096  *
1097  * @sdw: Device that will be interacted with
1098  * @config: Configuration for register map
1099  *
1100  * The return value will be an ERR_PTR() on error or a valid pointer
1101  * to a struct regmap. The regmap will be automatically freed by the
1102  * device management code.
1103  */
1104 #define devm_regmap_init_sdw_mbq(sdw, config)			\
1105 	__regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config,   \
1106 				sdw, config)
1107 
1108 /**
1109  * devm_regmap_init_slimbus() - Initialise managed register map
1110  *
1111  * @slimbus: Device that will be interacted with
1112  * @config: Configuration for register map
1113  *
1114  * The return value will be an ERR_PTR() on error or a valid pointer
1115  * to a struct regmap. The regmap will be automatically freed by the
1116  * device management code.
1117  */
1118 #define devm_regmap_init_slimbus(slimbus, config)			\
1119 	__regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config,	\
1120 				slimbus, config)
1121 
1122 /**
1123  * devm_regmap_init_i3c() - Initialise managed register map
1124  *
1125  * @i3c: Device that will be interacted with
1126  * @config: Configuration for register map
1127  *
1128  * The return value will be an ERR_PTR() on error or a valid pointer
1129  * to a struct regmap.  The regmap will be automatically freed by the
1130  * device management code.
1131  */
1132 #define devm_regmap_init_i3c(i3c, config)				\
1133 	__regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config,	\
1134 				i3c, config)
1135 
1136 /**
1137  * devm_regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
1138  * to AVMM Bus Bridge
1139  *
1140  * @spi: Device that will be interacted with
1141  * @config: Configuration for register map
1142  *
1143  * The return value will be an ERR_PTR() on error or a valid pointer
1144  * to a struct regmap.  The map will be automatically freed by the
1145  * device management code.
1146  */
1147 #define devm_regmap_init_spi_avmm(spi, config)				\
1148 	__regmap_lockdep_wrapper(__devm_regmap_init_spi_avmm, #config,	\
1149 				 spi, config)
1150 
1151 int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk);
1152 void regmap_mmio_detach_clk(struct regmap *map);
1153 void regmap_exit(struct regmap *map);
1154 int regmap_reinit_cache(struct regmap *map,
1155 			const struct regmap_config *config);
1156 struct regmap *dev_get_regmap(struct device *dev, const char *name);
1157 struct device *regmap_get_device(struct regmap *map);
1158 int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
1159 int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
1160 int regmap_raw_write(struct regmap *map, unsigned int reg,
1161 		     const void *val, size_t val_len);
1162 int regmap_noinc_write(struct regmap *map, unsigned int reg,
1163 		     const void *val, size_t val_len);
1164 int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
1165 			size_t val_count);
1166 int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
1167 			int num_regs);
1168 int regmap_multi_reg_write_bypassed(struct regmap *map,
1169 				    const struct reg_sequence *regs,
1170 				    int num_regs);
1171 int regmap_raw_write_async(struct regmap *map, unsigned int reg,
1172 			   const void *val, size_t val_len);
1173 int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
1174 int regmap_raw_read(struct regmap *map, unsigned int reg,
1175 		    void *val, size_t val_len);
1176 int regmap_noinc_read(struct regmap *map, unsigned int reg,
1177 		      void *val, size_t val_len);
1178 int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
1179 		     size_t val_count);
1180 int regmap_update_bits_base(struct regmap *map, unsigned int reg,
1181 			    unsigned int mask, unsigned int val,
1182 			    bool *change, bool async, bool force);
1183 
regmap_update_bits(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1184 static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
1185 				     unsigned int mask, unsigned int val)
1186 {
1187 	return regmap_update_bits_base(map, reg, mask, val, NULL, false, false);
1188 }
1189 
regmap_update_bits_async(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1190 static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg,
1191 					   unsigned int mask, unsigned int val)
1192 {
1193 	return regmap_update_bits_base(map, reg, mask, val, NULL, true, false);
1194 }
1195 
regmap_update_bits_check(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val,bool * change)1196 static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg,
1197 					   unsigned int mask, unsigned int val,
1198 					   bool *change)
1199 {
1200 	return regmap_update_bits_base(map, reg, mask, val,
1201 				       change, false, false);
1202 }
1203 
1204 static inline int
regmap_update_bits_check_async(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val,bool * change)1205 regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
1206 			       unsigned int mask, unsigned int val,
1207 			       bool *change)
1208 {
1209 	return regmap_update_bits_base(map, reg, mask, val,
1210 				       change, true, false);
1211 }
1212 
regmap_write_bits(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1213 static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
1214 				    unsigned int mask, unsigned int val)
1215 {
1216 	return regmap_update_bits_base(map, reg, mask, val, NULL, false, true);
1217 }
1218 
1219 int regmap_get_val_bytes(struct regmap *map);
1220 int regmap_get_max_register(struct regmap *map);
1221 int regmap_get_reg_stride(struct regmap *map);
1222 int regmap_async_complete(struct regmap *map);
1223 bool regmap_can_raw_write(struct regmap *map);
1224 size_t regmap_get_raw_read_max(struct regmap *map);
1225 size_t regmap_get_raw_write_max(struct regmap *map);
1226 
1227 int regcache_sync(struct regmap *map);
1228 int regcache_sync_region(struct regmap *map, unsigned int min,
1229 			 unsigned int max);
1230 int regcache_drop_region(struct regmap *map, unsigned int min,
1231 			 unsigned int max);
1232 void regcache_cache_only(struct regmap *map, bool enable);
1233 void regcache_cache_bypass(struct regmap *map, bool enable);
1234 void regcache_mark_dirty(struct regmap *map);
1235 
1236 bool regmap_check_range_table(struct regmap *map, unsigned int reg,
1237 			      const struct regmap_access_table *table);
1238 
1239 int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
1240 			  int num_regs);
1241 int regmap_parse_val(struct regmap *map, const void *buf,
1242 				unsigned int *val);
1243 
regmap_reg_in_range(unsigned int reg,const struct regmap_range * range)1244 static inline bool regmap_reg_in_range(unsigned int reg,
1245 				       const struct regmap_range *range)
1246 {
1247 	return reg >= range->range_min && reg <= range->range_max;
1248 }
1249 
1250 bool regmap_reg_in_ranges(unsigned int reg,
1251 			  const struct regmap_range *ranges,
1252 			  unsigned int nranges);
1253 
regmap_set_bits(struct regmap * map,unsigned int reg,unsigned int bits)1254 static inline int regmap_set_bits(struct regmap *map,
1255 				  unsigned int reg, unsigned int bits)
1256 {
1257 	return regmap_update_bits_base(map, reg, bits, bits,
1258 				       NULL, false, false);
1259 }
1260 
regmap_clear_bits(struct regmap * map,unsigned int reg,unsigned int bits)1261 static inline int regmap_clear_bits(struct regmap *map,
1262 				    unsigned int reg, unsigned int bits)
1263 {
1264 	return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false);
1265 }
1266 
1267 int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits);
1268 
1269 /**
1270  * struct reg_field - Description of an register field
1271  *
1272  * @reg: Offset of the register within the regmap bank
1273  * @lsb: lsb of the register field.
1274  * @msb: msb of the register field.
1275  * @id_size: port size if it has some ports
1276  * @id_offset: address offset for each ports
1277  */
1278 struct reg_field {
1279 	unsigned int reg;
1280 	unsigned int lsb;
1281 	unsigned int msb;
1282 	unsigned int id_size;
1283 	unsigned int id_offset;
1284 };
1285 
1286 #define REG_FIELD(_reg, _lsb, _msb) {		\
1287 				.reg = _reg,	\
1288 				.lsb = _lsb,	\
1289 				.msb = _msb,	\
1290 				}
1291 
1292 #define REG_FIELD_ID(_reg, _lsb, _msb, _size, _offset) {	\
1293 				.reg = _reg,			\
1294 				.lsb = _lsb,			\
1295 				.msb = _msb,			\
1296 				.id_size = _size,		\
1297 				.id_offset = _offset,		\
1298 				}
1299 
1300 struct regmap_field *regmap_field_alloc(struct regmap *regmap,
1301 		struct reg_field reg_field);
1302 void regmap_field_free(struct regmap_field *field);
1303 
1304 struct regmap_field *devm_regmap_field_alloc(struct device *dev,
1305 		struct regmap *regmap, struct reg_field reg_field);
1306 void devm_regmap_field_free(struct device *dev,	struct regmap_field *field);
1307 
1308 int regmap_field_bulk_alloc(struct regmap *regmap,
1309 			     struct regmap_field **rm_field,
1310 			     const struct reg_field *reg_field,
1311 			     int num_fields);
1312 void regmap_field_bulk_free(struct regmap_field *field);
1313 int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap,
1314 				 struct regmap_field **field,
1315 				 const struct reg_field *reg_field,
1316 				 int num_fields);
1317 void devm_regmap_field_bulk_free(struct device *dev,
1318 				 struct regmap_field *field);
1319 
1320 int regmap_field_read(struct regmap_field *field, unsigned int *val);
1321 int regmap_field_update_bits_base(struct regmap_field *field,
1322 				  unsigned int mask, unsigned int val,
1323 				  bool *change, bool async, bool force);
1324 int regmap_fields_read(struct regmap_field *field, unsigned int id,
1325 		       unsigned int *val);
1326 int regmap_fields_update_bits_base(struct regmap_field *field,  unsigned int id,
1327 				   unsigned int mask, unsigned int val,
1328 				   bool *change, bool async, bool force);
1329 
regmap_field_write(struct regmap_field * field,unsigned int val)1330 static inline int regmap_field_write(struct regmap_field *field,
1331 				     unsigned int val)
1332 {
1333 	return regmap_field_update_bits_base(field, ~0, val,
1334 					     NULL, false, false);
1335 }
1336 
regmap_field_force_write(struct regmap_field * field,unsigned int val)1337 static inline int regmap_field_force_write(struct regmap_field *field,
1338 					   unsigned int val)
1339 {
1340 	return regmap_field_update_bits_base(field, ~0, val, NULL, false, true);
1341 }
1342 
regmap_field_update_bits(struct regmap_field * field,unsigned int mask,unsigned int val)1343 static inline int regmap_field_update_bits(struct regmap_field *field,
1344 					   unsigned int mask, unsigned int val)
1345 {
1346 	return regmap_field_update_bits_base(field, mask, val,
1347 					     NULL, false, false);
1348 }
1349 
regmap_field_set_bits(struct regmap_field * field,unsigned int bits)1350 static inline int regmap_field_set_bits(struct regmap_field *field,
1351 					unsigned int bits)
1352 {
1353 	return regmap_field_update_bits_base(field, bits, bits, NULL, false,
1354 					     false);
1355 }
1356 
regmap_field_clear_bits(struct regmap_field * field,unsigned int bits)1357 static inline int regmap_field_clear_bits(struct regmap_field *field,
1358 					  unsigned int bits)
1359 {
1360 	return regmap_field_update_bits_base(field, bits, 0, NULL, false,
1361 					     false);
1362 }
1363 
1364 int regmap_field_test_bits(struct regmap_field *field, unsigned int bits);
1365 
1366 static inline int
regmap_field_force_update_bits(struct regmap_field * field,unsigned int mask,unsigned int val)1367 regmap_field_force_update_bits(struct regmap_field *field,
1368 			       unsigned int mask, unsigned int val)
1369 {
1370 	return regmap_field_update_bits_base(field, mask, val,
1371 					     NULL, false, true);
1372 }
1373 
regmap_fields_write(struct regmap_field * field,unsigned int id,unsigned int val)1374 static inline int regmap_fields_write(struct regmap_field *field,
1375 				      unsigned int id, unsigned int val)
1376 {
1377 	return regmap_fields_update_bits_base(field, id, ~0, val,
1378 					      NULL, false, false);
1379 }
1380 
regmap_fields_force_write(struct regmap_field * field,unsigned int id,unsigned int val)1381 static inline int regmap_fields_force_write(struct regmap_field *field,
1382 					    unsigned int id, unsigned int val)
1383 {
1384 	return regmap_fields_update_bits_base(field, id, ~0, val,
1385 					      NULL, false, true);
1386 }
1387 
1388 static inline int
regmap_fields_update_bits(struct regmap_field * field,unsigned int id,unsigned int mask,unsigned int val)1389 regmap_fields_update_bits(struct regmap_field *field, unsigned int id,
1390 			  unsigned int mask, unsigned int val)
1391 {
1392 	return regmap_fields_update_bits_base(field, id, mask, val,
1393 					      NULL, false, false);
1394 }
1395 
1396 static inline int
regmap_fields_force_update_bits(struct regmap_field * field,unsigned int id,unsigned int mask,unsigned int val)1397 regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id,
1398 				unsigned int mask, unsigned int val)
1399 {
1400 	return regmap_fields_update_bits_base(field, id, mask, val,
1401 					      NULL, false, true);
1402 }
1403 
1404 /**
1405  * struct regmap_irq_type - IRQ type definitions.
1406  *
1407  * @type_reg_offset: Offset register for the irq type setting.
1408  * @type_rising_val: Register value to configure RISING type irq.
1409  * @type_falling_val: Register value to configure FALLING type irq.
1410  * @type_level_low_val: Register value to configure LEVEL_LOW type irq.
1411  * @type_level_high_val: Register value to configure LEVEL_HIGH type irq.
1412  * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types.
1413  */
1414 struct regmap_irq_type {
1415 	unsigned int type_reg_offset;
1416 	unsigned int type_reg_mask;
1417 	unsigned int type_rising_val;
1418 	unsigned int type_falling_val;
1419 	unsigned int type_level_low_val;
1420 	unsigned int type_level_high_val;
1421 	unsigned int types_supported;
1422 };
1423 
1424 /**
1425  * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip.
1426  *
1427  * @reg_offset: Offset of the status/mask register within the bank
1428  * @mask:       Mask used to flag/control the register.
1429  * @type:	IRQ trigger type setting details if supported.
1430  */
1431 struct regmap_irq {
1432 	unsigned int reg_offset;
1433 	unsigned int mask;
1434 	struct regmap_irq_type type;
1435 };
1436 
1437 #define REGMAP_IRQ_REG(_irq, _off, _mask)		\
1438 	[_irq] = { .reg_offset = (_off), .mask = (_mask) }
1439 
1440 #define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \
1441 	[_id] = {				\
1442 		.mask = BIT((_id) % (_reg_bits)),	\
1443 		.reg_offset = (_id) / (_reg_bits),	\
1444 	}
1445 
1446 #define REGMAP_IRQ_MAIN_REG_OFFSET(arr)				\
1447 	{ .num_regs = ARRAY_SIZE((arr)), .offset = &(arr)[0] }
1448 
1449 struct regmap_irq_sub_irq_map {
1450 	unsigned int num_regs;
1451 	unsigned int *offset;
1452 };
1453 
1454 struct regmap_irq_chip_data;
1455 
1456 /**
1457  * struct regmap_irq_chip - Description of a generic regmap irq_chip.
1458  *
1459  * @name:        Descriptive name for IRQ controller.
1460  *
1461  * @main_status: Base main status register address. For chips which have
1462  *		 interrupts arranged in separate sub-irq blocks with own IRQ
1463  *		 registers and which have a main IRQ registers indicating
1464  *		 sub-irq blocks with unhandled interrupts. For such chips fill
1465  *		 sub-irq register information in status_base, mask_base and
1466  *		 ack_base.
1467  * @num_main_status_bits: Should be given to chips where number of meaningfull
1468  *			  main status bits differs from num_regs.
1469  * @sub_reg_offsets: arrays of mappings from main register bits to sub irq
1470  *		     registers. First item in array describes the registers
1471  *		     for first main status bit. Second array for second bit etc.
1472  *		     Offset is given as sub register status offset to
1473  *		     status_base. Should contain num_regs arrays.
1474  *		     Can be provided for chips with more complex mapping than
1475  *		     1.st bit to 1.st sub-reg, 2.nd bit to 2.nd sub-reg, ...
1476  *		     When used with not_fixed_stride, each one-element array
1477  *		     member contains offset calculated as address from each
1478  *		     peripheral to first peripheral.
1479  * @num_main_regs: Number of 'main status' irq registers for chips which have
1480  *		   main_status set.
1481  *
1482  * @status_base: Base status register address.
1483  * @mask_base:   Base mask register address. Mask bits are set to 1 when an
1484  *               interrupt is masked, 0 when unmasked.
1485  * @unmask_base:  Base unmask register address. Unmask bits are set to 1 when
1486  *                an interrupt is unmasked and 0 when masked.
1487  * @ack_base:    Base ack address. If zero then the chip is clear on read.
1488  *               Using zero value is possible with @use_ack bit.
1489  * @wake_base:   Base address for wake enables.  If zero unsupported.
1490  * @type_base:   Base address for irq type.  If zero unsupported.  Deprecated,
1491  *		 use @config_base instead.
1492  * @virt_reg_base:   Base addresses for extra config regs. Deprecated, use
1493  *		     @config_base instead.
1494  * @config_base: Base address for IRQ type config regs. If null unsupported.
1495  * @irq_reg_stride:  Stride to use for chips where registers are not contiguous.
1496  * @init_ack_masked: Ack all masked interrupts once during initalization.
1497  * @mask_invert: Inverted mask register: cleared bits are masked out.
1498  *		 Deprecated; prefer describing an inverted mask register as
1499  *		 an unmask register.
1500  * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set
1501  *	both @mask_base and @unmask_base. If false, mask and unmask bits are
1502  *	inverted (which is deprecated behavior); if true, bits will not be
1503  *	inverted and the registers keep their normal behavior. Note that if
1504  *	you use only one of @mask_base or @unmask_base, this flag has no
1505  *	effect and is unnecessary. Any new drivers that set both @mask_base
1506  *	and @unmask_base should set this to true to avoid relying on the
1507  *	deprecated behavior.
1508  * @use_ack:     Use @ack register even if it is zero.
1509  * @ack_invert:  Inverted ack register: cleared bits for ack.
1510  * @clear_ack:  Use this to set 1 and 0 or vice-versa to clear interrupts.
1511  * @wake_invert: Inverted wake register: cleared bits are wake enabled.
1512  * @type_invert: Invert the type flags. Deprecated, use config registers
1513  *		 instead.
1514  * @type_in_mask: Use the mask registers for controlling irq type. Use this if
1515  *		  the hardware provides separate bits for rising/falling edge
1516  *		  or low/high level interrupts and they should be combined into
1517  *		  a single logical interrupt. Use &struct regmap_irq_type data
1518  *		  to define the mask bit for each irq type.
1519  * @clear_on_unmask: For chips with interrupts cleared on read: read the status
1520  *                   registers before unmasking interrupts to clear any bits
1521  *                   set when they were masked.
1522  * @not_fixed_stride: Used when chip peripherals are not laid out with fixed
1523  *		      stride. Must be used with sub_reg_offsets containing the
1524  *		      offsets to each peripheral. Deprecated; the same thing
1525  *		      can be accomplished with a @get_irq_reg callback, without
1526  *		      the need for a @sub_reg_offsets table.
1527  * @status_invert: Inverted status register: cleared bits are active interrupts.
1528  * @runtime_pm:  Hold a runtime PM lock on the device when accessing it.
1529  *
1530  * @num_regs:    Number of registers in each control bank.
1531  * @irqs:        Descriptors for individual IRQs.  Interrupt numbers are
1532  *               assigned based on the index in the array of the interrupt.
1533  * @num_irqs:    Number of descriptors.
1534  * @num_type_reg:    Number of type registers. Deprecated, use config registers
1535  *		     instead.
1536  * @num_virt_regs:   Number of non-standard irq configuration registers.
1537  *		     If zero unsupported. Deprecated, use config registers
1538  *		     instead.
1539  * @num_config_bases:	Number of config base registers.
1540  * @num_config_regs:	Number of config registers for each config base register.
1541  * @handle_pre_irq:  Driver specific callback to handle interrupt from device
1542  *		     before regmap_irq_handler process the interrupts.
1543  * @handle_post_irq: Driver specific callback to handle interrupt from device
1544  *		     after handling the interrupts in regmap_irq_handler().
1545  * @set_type_virt:   Driver specific callback to extend regmap_irq_set_type()
1546  *		     and configure virt regs. Deprecated, use @set_type_config
1547  *		     callback and config registers instead.
1548  * @set_type_config: Callback used for configuring irq types.
1549  * @get_irq_reg: Callback for mapping (base register, index) pairs to register
1550  *		 addresses. The base register will be one of @status_base,
1551  *		 @mask_base, etc., @main_status, or any of @config_base.
1552  *		 The index will be in the range [0, num_main_regs[ for the
1553  *		 main status base, [0, num_type_settings[ for any config
1554  *		 register base, and [0, num_regs[ for any other base.
1555  *		 If unspecified then regmap_irq_get_irq_reg_linear() is used.
1556  * @irq_drv_data:    Driver specific IRQ data which is passed as parameter when
1557  *		     driver specific pre/post interrupt handler is called.
1558  *
1559  * This is not intended to handle every possible interrupt controller, but
1560  * it should handle a substantial proportion of those that are found in the
1561  * wild.
1562  */
1563 struct regmap_irq_chip {
1564 	const char *name;
1565 
1566 	unsigned int main_status;
1567 	unsigned int num_main_status_bits;
1568 	struct regmap_irq_sub_irq_map *sub_reg_offsets;
1569 	int num_main_regs;
1570 
1571 	unsigned int status_base;
1572 	unsigned int mask_base;
1573 	unsigned int unmask_base;
1574 	unsigned int ack_base;
1575 	unsigned int wake_base;
1576 	unsigned int type_base;
1577 	unsigned int *virt_reg_base;
1578 	const unsigned int *config_base;
1579 	unsigned int irq_reg_stride;
1580 	unsigned int init_ack_masked:1;
1581 	unsigned int mask_invert:1;
1582 	unsigned int mask_unmask_non_inverted:1;
1583 	unsigned int use_ack:1;
1584 	unsigned int ack_invert:1;
1585 	unsigned int clear_ack:1;
1586 	unsigned int wake_invert:1;
1587 	unsigned int runtime_pm:1;
1588 	unsigned int type_invert:1;
1589 	unsigned int type_in_mask:1;
1590 	unsigned int clear_on_unmask:1;
1591 	unsigned int not_fixed_stride:1;
1592 	unsigned int status_invert:1;
1593 
1594 	int num_regs;
1595 
1596 	const struct regmap_irq *irqs;
1597 	int num_irqs;
1598 
1599 	int num_type_reg;
1600 	int num_virt_regs;
1601 	int num_config_bases;
1602 	int num_config_regs;
1603 
1604 	int (*handle_pre_irq)(void *irq_drv_data);
1605 	int (*handle_post_irq)(void *irq_drv_data);
1606 	int (*set_type_virt)(unsigned int **buf, unsigned int type,
1607 			     unsigned long hwirq, int reg);
1608 	int (*set_type_config)(unsigned int **buf, unsigned int type,
1609 			       const struct regmap_irq *irq_data, int idx);
1610 	unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data,
1611 				    unsigned int base, int index);
1612 	void *irq_drv_data;
1613 };
1614 
1615 unsigned int regmap_irq_get_irq_reg_linear(struct regmap_irq_chip_data *data,
1616 					   unsigned int base, int index);
1617 int regmap_irq_set_type_config_simple(unsigned int **buf, unsigned int type,
1618 				      const struct regmap_irq *irq_data, int idx);
1619 
1620 int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
1621 			int irq_base, const struct regmap_irq_chip *chip,
1622 			struct regmap_irq_chip_data **data);
1623 int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
1624 			       struct regmap *map, int irq,
1625 			       int irq_flags, int irq_base,
1626 			       const struct regmap_irq_chip *chip,
1627 			       struct regmap_irq_chip_data **data);
1628 void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
1629 
1630 int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq,
1631 			     int irq_flags, int irq_base,
1632 			     const struct regmap_irq_chip *chip,
1633 			     struct regmap_irq_chip_data **data);
1634 int devm_regmap_add_irq_chip_fwnode(struct device *dev,
1635 				    struct fwnode_handle *fwnode,
1636 				    struct regmap *map, int irq,
1637 				    int irq_flags, int irq_base,
1638 				    const struct regmap_irq_chip *chip,
1639 				    struct regmap_irq_chip_data **data);
1640 void devm_regmap_del_irq_chip(struct device *dev, int irq,
1641 			      struct regmap_irq_chip_data *data);
1642 
1643 int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
1644 int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq);
1645 struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data);
1646 
1647 #else
1648 
1649 /*
1650  * These stubs should only ever be called by generic code which has
1651  * regmap based facilities, if they ever get called at runtime
1652  * something is going wrong and something probably needs to select
1653  * REGMAP.
1654  */
1655 
regmap_write(struct regmap * map,unsigned int reg,unsigned int val)1656 static inline int regmap_write(struct regmap *map, unsigned int reg,
1657 			       unsigned int val)
1658 {
1659 	WARN_ONCE(1, "regmap API is disabled");
1660 	return -EINVAL;
1661 }
1662 
regmap_write_async(struct regmap * map,unsigned int reg,unsigned int val)1663 static inline int regmap_write_async(struct regmap *map, unsigned int reg,
1664 				     unsigned int val)
1665 {
1666 	WARN_ONCE(1, "regmap API is disabled");
1667 	return -EINVAL;
1668 }
1669 
regmap_raw_write(struct regmap * map,unsigned int reg,const void * val,size_t val_len)1670 static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
1671 				   const void *val, size_t val_len)
1672 {
1673 	WARN_ONCE(1, "regmap API is disabled");
1674 	return -EINVAL;
1675 }
1676 
regmap_raw_write_async(struct regmap * map,unsigned int reg,const void * val,size_t val_len)1677 static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg,
1678 					 const void *val, size_t val_len)
1679 {
1680 	WARN_ONCE(1, "regmap API is disabled");
1681 	return -EINVAL;
1682 }
1683 
regmap_noinc_write(struct regmap * map,unsigned int reg,const void * val,size_t val_len)1684 static inline int regmap_noinc_write(struct regmap *map, unsigned int reg,
1685 				    const void *val, size_t val_len)
1686 {
1687 	WARN_ONCE(1, "regmap API is disabled");
1688 	return -EINVAL;
1689 }
1690 
regmap_bulk_write(struct regmap * map,unsigned int reg,const void * val,size_t val_count)1691 static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
1692 				    const void *val, size_t val_count)
1693 {
1694 	WARN_ONCE(1, "regmap API is disabled");
1695 	return -EINVAL;
1696 }
1697 
regmap_read(struct regmap * map,unsigned int reg,unsigned int * val)1698 static inline int regmap_read(struct regmap *map, unsigned int reg,
1699 			      unsigned int *val)
1700 {
1701 	WARN_ONCE(1, "regmap API is disabled");
1702 	return -EINVAL;
1703 }
1704 
regmap_raw_read(struct regmap * map,unsigned int reg,void * val,size_t val_len)1705 static inline int regmap_raw_read(struct regmap *map, unsigned int reg,
1706 				  void *val, size_t val_len)
1707 {
1708 	WARN_ONCE(1, "regmap API is disabled");
1709 	return -EINVAL;
1710 }
1711 
regmap_noinc_read(struct regmap * map,unsigned int reg,void * val,size_t val_len)1712 static inline int regmap_noinc_read(struct regmap *map, unsigned int reg,
1713 				    void *val, size_t val_len)
1714 {
1715 	WARN_ONCE(1, "regmap API is disabled");
1716 	return -EINVAL;
1717 }
1718 
regmap_bulk_read(struct regmap * map,unsigned int reg,void * val,size_t val_count)1719 static inline int regmap_bulk_read(struct regmap *map, unsigned int reg,
1720 				   void *val, size_t val_count)
1721 {
1722 	WARN_ONCE(1, "regmap API is disabled");
1723 	return -EINVAL;
1724 }
1725 
regmap_update_bits_base(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val,bool * change,bool async,bool force)1726 static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg,
1727 					  unsigned int mask, unsigned int val,
1728 					  bool *change, bool async, bool force)
1729 {
1730 	WARN_ONCE(1, "regmap API is disabled");
1731 	return -EINVAL;
1732 }
1733 
regmap_set_bits(struct regmap * map,unsigned int reg,unsigned int bits)1734 static inline int regmap_set_bits(struct regmap *map,
1735 				  unsigned int reg, unsigned int bits)
1736 {
1737 	WARN_ONCE(1, "regmap API is disabled");
1738 	return -EINVAL;
1739 }
1740 
regmap_clear_bits(struct regmap * map,unsigned int reg,unsigned int bits)1741 static inline int regmap_clear_bits(struct regmap *map,
1742 				    unsigned int reg, unsigned int bits)
1743 {
1744 	WARN_ONCE(1, "regmap API is disabled");
1745 	return -EINVAL;
1746 }
1747 
regmap_test_bits(struct regmap * map,unsigned int reg,unsigned int bits)1748 static inline int regmap_test_bits(struct regmap *map,
1749 				   unsigned int reg, unsigned int bits)
1750 {
1751 	WARN_ONCE(1, "regmap API is disabled");
1752 	return -EINVAL;
1753 }
1754 
regmap_field_update_bits_base(struct regmap_field * field,unsigned int mask,unsigned int val,bool * change,bool async,bool force)1755 static inline int regmap_field_update_bits_base(struct regmap_field *field,
1756 					unsigned int mask, unsigned int val,
1757 					bool *change, bool async, bool force)
1758 {
1759 	WARN_ONCE(1, "regmap API is disabled");
1760 	return -EINVAL;
1761 }
1762 
regmap_fields_update_bits_base(struct regmap_field * field,unsigned int id,unsigned int mask,unsigned int val,bool * change,bool async,bool force)1763 static inline int regmap_fields_update_bits_base(struct regmap_field *field,
1764 				   unsigned int id,
1765 				   unsigned int mask, unsigned int val,
1766 				   bool *change, bool async, bool force)
1767 {
1768 	WARN_ONCE(1, "regmap API is disabled");
1769 	return -EINVAL;
1770 }
1771 
regmap_update_bits(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1772 static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
1773 				     unsigned int mask, unsigned int val)
1774 {
1775 	WARN_ONCE(1, "regmap API is disabled");
1776 	return -EINVAL;
1777 }
1778 
regmap_update_bits_async(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1779 static inline int regmap_update_bits_async(struct regmap *map, unsigned int reg,
1780 					   unsigned int mask, unsigned int val)
1781 {
1782 	WARN_ONCE(1, "regmap API is disabled");
1783 	return -EINVAL;
1784 }
1785 
regmap_update_bits_check(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val,bool * change)1786 static inline int regmap_update_bits_check(struct regmap *map, unsigned int reg,
1787 					   unsigned int mask, unsigned int val,
1788 					   bool *change)
1789 {
1790 	WARN_ONCE(1, "regmap API is disabled");
1791 	return -EINVAL;
1792 }
1793 
1794 static inline int
regmap_update_bits_check_async(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val,bool * change)1795 regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
1796 			       unsigned int mask, unsigned int val,
1797 			       bool *change)
1798 {
1799 	WARN_ONCE(1, "regmap API is disabled");
1800 	return -EINVAL;
1801 }
1802 
regmap_write_bits(struct regmap * map,unsigned int reg,unsigned int mask,unsigned int val)1803 static inline int regmap_write_bits(struct regmap *map, unsigned int reg,
1804 				    unsigned int mask, unsigned int val)
1805 {
1806 	WARN_ONCE(1, "regmap API is disabled");
1807 	return -EINVAL;
1808 }
1809 
regmap_field_write(struct regmap_field * field,unsigned int val)1810 static inline int regmap_field_write(struct regmap_field *field,
1811 				     unsigned int val)
1812 {
1813 	WARN_ONCE(1, "regmap API is disabled");
1814 	return -EINVAL;
1815 }
1816 
regmap_field_force_write(struct regmap_field * field,unsigned int val)1817 static inline int regmap_field_force_write(struct regmap_field *field,
1818 					   unsigned int val)
1819 {
1820 	WARN_ONCE(1, "regmap API is disabled");
1821 	return -EINVAL;
1822 }
1823 
regmap_field_update_bits(struct regmap_field * field,unsigned int mask,unsigned int val)1824 static inline int regmap_field_update_bits(struct regmap_field *field,
1825 					   unsigned int mask, unsigned int val)
1826 {
1827 	WARN_ONCE(1, "regmap API is disabled");
1828 	return -EINVAL;
1829 }
1830 
1831 static inline int
regmap_field_force_update_bits(struct regmap_field * field,unsigned int mask,unsigned int val)1832 regmap_field_force_update_bits(struct regmap_field *field,
1833 			       unsigned int mask, unsigned int val)
1834 {
1835 	WARN_ONCE(1, "regmap API is disabled");
1836 	return -EINVAL;
1837 }
1838 
regmap_field_set_bits(struct regmap_field * field,unsigned int bits)1839 static inline int regmap_field_set_bits(struct regmap_field *field,
1840 					unsigned int bits)
1841 {
1842 	WARN_ONCE(1, "regmap API is disabled");
1843 	return -EINVAL;
1844 }
1845 
regmap_field_clear_bits(struct regmap_field * field,unsigned int bits)1846 static inline int regmap_field_clear_bits(struct regmap_field *field,
1847 					  unsigned int bits)
1848 {
1849 	WARN_ONCE(1, "regmap API is disabled");
1850 	return -EINVAL;
1851 }
1852 
regmap_field_test_bits(struct regmap_field * field,unsigned int bits)1853 static inline int regmap_field_test_bits(struct regmap_field *field,
1854 					 unsigned int bits)
1855 {
1856 	WARN_ONCE(1, "regmap API is disabled");
1857 	return -EINVAL;
1858 }
1859 
regmap_fields_write(struct regmap_field * field,unsigned int id,unsigned int val)1860 static inline int regmap_fields_write(struct regmap_field *field,
1861 				      unsigned int id, unsigned int val)
1862 {
1863 	WARN_ONCE(1, "regmap API is disabled");
1864 	return -EINVAL;
1865 }
1866 
regmap_fields_force_write(struct regmap_field * field,unsigned int id,unsigned int val)1867 static inline int regmap_fields_force_write(struct regmap_field *field,
1868 					    unsigned int id, unsigned int val)
1869 {
1870 	WARN_ONCE(1, "regmap API is disabled");
1871 	return -EINVAL;
1872 }
1873 
1874 static inline int
regmap_fields_update_bits(struct regmap_field * field,unsigned int id,unsigned int mask,unsigned int val)1875 regmap_fields_update_bits(struct regmap_field *field, unsigned int id,
1876 			  unsigned int mask, unsigned int val)
1877 {
1878 	WARN_ONCE(1, "regmap API is disabled");
1879 	return -EINVAL;
1880 }
1881 
1882 static inline int
regmap_fields_force_update_bits(struct regmap_field * field,unsigned int id,unsigned int mask,unsigned int val)1883 regmap_fields_force_update_bits(struct regmap_field *field, unsigned int id,
1884 				unsigned int mask, unsigned int val)
1885 {
1886 	WARN_ONCE(1, "regmap API is disabled");
1887 	return -EINVAL;
1888 }
1889 
regmap_get_val_bytes(struct regmap * map)1890 static inline int regmap_get_val_bytes(struct regmap *map)
1891 {
1892 	WARN_ONCE(1, "regmap API is disabled");
1893 	return -EINVAL;
1894 }
1895 
regmap_get_max_register(struct regmap * map)1896 static inline int regmap_get_max_register(struct regmap *map)
1897 {
1898 	WARN_ONCE(1, "regmap API is disabled");
1899 	return -EINVAL;
1900 }
1901 
regmap_get_reg_stride(struct regmap * map)1902 static inline int regmap_get_reg_stride(struct regmap *map)
1903 {
1904 	WARN_ONCE(1, "regmap API is disabled");
1905 	return -EINVAL;
1906 }
1907 
regcache_sync(struct regmap * map)1908 static inline int regcache_sync(struct regmap *map)
1909 {
1910 	WARN_ONCE(1, "regmap API is disabled");
1911 	return -EINVAL;
1912 }
1913 
regcache_sync_region(struct regmap * map,unsigned int min,unsigned int max)1914 static inline int regcache_sync_region(struct regmap *map, unsigned int min,
1915 				       unsigned int max)
1916 {
1917 	WARN_ONCE(1, "regmap API is disabled");
1918 	return -EINVAL;
1919 }
1920 
regcache_drop_region(struct regmap * map,unsigned int min,unsigned int max)1921 static inline int regcache_drop_region(struct regmap *map, unsigned int min,
1922 				       unsigned int max)
1923 {
1924 	WARN_ONCE(1, "regmap API is disabled");
1925 	return -EINVAL;
1926 }
1927 
regcache_cache_only(struct regmap * map,bool enable)1928 static inline void regcache_cache_only(struct regmap *map, bool enable)
1929 {
1930 	WARN_ONCE(1, "regmap API is disabled");
1931 }
1932 
regcache_cache_bypass(struct regmap * map,bool enable)1933 static inline void regcache_cache_bypass(struct regmap *map, bool enable)
1934 {
1935 	WARN_ONCE(1, "regmap API is disabled");
1936 }
1937 
regcache_mark_dirty(struct regmap * map)1938 static inline void regcache_mark_dirty(struct regmap *map)
1939 {
1940 	WARN_ONCE(1, "regmap API is disabled");
1941 }
1942 
regmap_async_complete(struct regmap * map)1943 static inline void regmap_async_complete(struct regmap *map)
1944 {
1945 	WARN_ONCE(1, "regmap API is disabled");
1946 }
1947 
regmap_register_patch(struct regmap * map,const struct reg_sequence * regs,int num_regs)1948 static inline int regmap_register_patch(struct regmap *map,
1949 					const struct reg_sequence *regs,
1950 					int num_regs)
1951 {
1952 	WARN_ONCE(1, "regmap API is disabled");
1953 	return -EINVAL;
1954 }
1955 
regmap_parse_val(struct regmap * map,const void * buf,unsigned int * val)1956 static inline int regmap_parse_val(struct regmap *map, const void *buf,
1957 				unsigned int *val)
1958 {
1959 	WARN_ONCE(1, "regmap API is disabled");
1960 	return -EINVAL;
1961 }
1962 
dev_get_regmap(struct device * dev,const char * name)1963 static inline struct regmap *dev_get_regmap(struct device *dev,
1964 					    const char *name)
1965 {
1966 	return NULL;
1967 }
1968 
regmap_get_device(struct regmap * map)1969 static inline struct device *regmap_get_device(struct regmap *map)
1970 {
1971 	WARN_ONCE(1, "regmap API is disabled");
1972 	return NULL;
1973 }
1974 
1975 #endif
1976 
1977 #endif
1978