1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * driver.h -- SoC Regulator driver support.
5 * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
7 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
9 * Regulator Driver Interface.
12 #ifndef __LINUX_REGULATOR_DRIVER_H_
13 #define __LINUX_REGULATOR_DRIVER_H_
15 #include <linux/device.h>
16 #include <linux/linear_range.h>
17 #include <linux/notifier.h>
18 #include <linux/regulator/consumer.h>
19 #include <linux/ww_mutex.h>
24 struct regulator_config
;
25 struct regulator_init_data
;
26 struct regulator_enable_gpio
;
28 enum regulator_status
{
31 REGULATOR_STATUS_ERROR
,
32 /* fast/normal/idle/standby are flavors of "on" */
33 REGULATOR_STATUS_FAST
,
34 REGULATOR_STATUS_NORMAL
,
35 REGULATOR_STATUS_IDLE
,
36 REGULATOR_STATUS_STANDBY
,
37 /* The regulator is enabled but not regulating */
38 REGULATOR_STATUS_BYPASS
,
39 /* in case that any other status doesn't apply */
40 REGULATOR_STATUS_UNDEFINED
,
43 enum regulator_detection_severity
{
44 /* Hardware shut down voltage outputs if condition is detected */
45 REGULATOR_SEVERITY_PROT
,
46 /* Hardware is probably damaged/inoperable */
47 REGULATOR_SEVERITY_ERR
,
48 /* Hardware is still recoverable but recovery action must be taken */
49 REGULATOR_SEVERITY_WARN
,
52 /* Initialize struct linear_range for regulators */
53 #define REGULATOR_LINEAR_RANGE(_min_uV, _min_sel, _max_sel, _step_uV) \
56 .min_sel = _min_sel, \
57 .max_sel = _max_sel, \
62 * struct regulator_ops - regulator operations.
64 * @enable: Configure the regulator as enabled.
65 * @disable: Configure the regulator as disabled.
66 * @is_enabled: Return 1 if the regulator is enabled, 0 if not.
67 * May also return negative errno.
69 * @set_voltage: Set the voltage for the regulator within the range specified.
70 * The driver should select the voltage closest to min_uV.
71 * @set_voltage_sel: Set the voltage for the regulator using the specified
73 * @map_voltage: Convert a voltage into a selector
74 * @get_voltage: Return the currently configured voltage for the regulator;
75 * return -ENOTRECOVERABLE if regulator can't be read at
76 * bootup and hasn't been set yet.
77 * @get_voltage_sel: Return the currently configured voltage selector for the
78 * regulator; return -ENOTRECOVERABLE if regulator can't
79 * be read at bootup and hasn't been set yet.
80 * @list_voltage: Return one of the supported voltages, in microvolts; zero
81 * if the selector indicates a voltage that is unusable on this system;
82 * or negative errno. Selectors range from zero to one less than
83 * regulator_desc.n_voltages. Voltages may be reported in any order.
85 * @set_current_limit: Configure a limit for a current-limited regulator.
86 * The driver should select the current closest to max_uA.
87 * @get_current_limit: Get the configured limit for a current-limited regulator.
88 * @set_input_current_limit: Configure an input limit.
90 * @set_over_current_protection: Support enabling of and setting limits for over
91 * current situation detection. Detection can be configured for three
93 * REGULATOR_SEVERITY_PROT should automatically shut down the regulator(s).
94 * REGULATOR_SEVERITY_ERR should indicate that over-current situation is
95 * caused by an unrecoverable error but HW does not perform
96 * automatic shut down.
97 * REGULATOR_SEVERITY_WARN should indicate situation where hardware is
98 * still believed to not be damaged but that a board sepcific
99 * recovery action is needed. If lim_uA is 0 the limit should not
100 * be changed but the detection should just be enabled/disabled as
102 * @set_over_voltage_protection: Support enabling of and setting limits for over
103 * voltage situation detection. Detection can be configured for same
104 * severities as over current protection.
105 * @set_under_voltage_protection: Support enabling of and setting limits for
106 * under situation detection.
107 * @set_thermal_protection: Support enabling of and setting limits for over
108 * temperature situation detection.
110 * @set_active_discharge: Set active discharge enable/disable of regulators.
112 * @set_mode: Set the configured operating mode for the regulator.
113 * @get_mode: Get the configured operating mode for the regulator.
114 * @get_error_flags: Get the current error(s) for the regulator.
115 * @get_status: Return actual (not as-configured) status of regulator, as a
116 * REGULATOR_STATUS value (or negative errno)
117 * @get_optimum_mode: Get the most efficient operating mode for the regulator
118 * when running with the specified parameters.
119 * @set_load: Set the load for the regulator.
121 * @set_bypass: Set the regulator in bypass mode.
122 * @get_bypass: Get the regulator bypass mode state.
124 * @enable_time: Time taken for the regulator voltage output voltage to
125 * stabilise after being enabled, in microseconds.
126 * @set_ramp_delay: Set the ramp delay for the regulator. The driver should
127 * select ramp delay equal to or less than(closest) ramp_delay.
128 * @set_voltage_time: Time taken for the regulator voltage output voltage
129 * to stabilise after being set to a new value, in microseconds.
130 * The function receives the from and to voltage as input, it
131 * should return the worst case.
132 * @set_voltage_time_sel: Time taken for the regulator voltage output voltage
133 * to stabilise after being set to a new value, in microseconds.
134 * The function receives the from and to voltage selector as
135 * input, it should return the worst case.
136 * @set_soft_start: Enable soft start for the regulator.
138 * @set_suspend_voltage: Set the voltage for the regulator when the system
140 * @set_suspend_enable: Mark the regulator as enabled when the system is
142 * @set_suspend_disable: Mark the regulator as disabled when the system is
144 * @set_suspend_mode: Set the operating mode for the regulator when the
145 * system is suspended.
146 * @resume: Resume operation of suspended regulator.
147 * @set_pull_down: Configure the regulator to pull down when the regulator
150 * This struct describes regulator operations which can be implemented by
151 * regulator chip drivers.
153 struct regulator_ops
{
155 /* enumerate supported voltages */
156 int (*list_voltage
) (struct regulator_dev
*, unsigned selector
);
158 /* get/set regulator voltage */
159 int (*set_voltage
) (struct regulator_dev
*, int min_uV
, int max_uV
,
161 int (*map_voltage
)(struct regulator_dev
*, int min_uV
, int max_uV
);
162 int (*set_voltage_sel
) (struct regulator_dev
*, unsigned selector
);
163 int (*get_voltage
) (struct regulator_dev
*);
164 int (*get_voltage_sel
) (struct regulator_dev
*);
166 /* get/set regulator current */
167 int (*set_current_limit
) (struct regulator_dev
*,
168 int min_uA
, int max_uA
);
169 int (*get_current_limit
) (struct regulator_dev
*);
171 int (*set_input_current_limit
) (struct regulator_dev
*, int lim_uA
);
172 int (*set_over_current_protection
)(struct regulator_dev
*, int lim_uA
,
173 int severity
, bool enable
);
174 int (*set_over_voltage_protection
)(struct regulator_dev
*, int lim_uV
,
175 int severity
, bool enable
);
176 int (*set_under_voltage_protection
)(struct regulator_dev
*, int lim_uV
,
177 int severity
, bool enable
);
178 int (*set_thermal_protection
)(struct regulator_dev
*, int lim
,
179 int severity
, bool enable
);
180 int (*set_active_discharge
)(struct regulator_dev
*, bool enable
);
182 /* enable/disable regulator */
183 int (*enable
) (struct regulator_dev
*);
184 int (*disable
) (struct regulator_dev
*);
185 int (*is_enabled
) (struct regulator_dev
*);
187 /* get/set regulator operating mode (defined in consumer.h) */
188 int (*set_mode
) (struct regulator_dev
*, unsigned int mode
);
189 unsigned int (*get_mode
) (struct regulator_dev
*);
191 /* retrieve current error flags on the regulator */
192 int (*get_error_flags
)(struct regulator_dev
*, unsigned int *flags
);
194 /* Time taken to enable or set voltage on the regulator */
195 int (*enable_time
) (struct regulator_dev
*);
196 int (*set_ramp_delay
) (struct regulator_dev
*, int ramp_delay
);
197 int (*set_voltage_time
) (struct regulator_dev
*, int old_uV
,
199 int (*set_voltage_time_sel
) (struct regulator_dev
*,
200 unsigned int old_selector
,
201 unsigned int new_selector
);
203 int (*set_soft_start
) (struct regulator_dev
*);
205 /* report regulator status ... most other accessors report
206 * control inputs, this reports results of combining inputs
207 * from Linux (and other sources) with the actual load.
208 * returns REGULATOR_STATUS_* or negative errno.
210 int (*get_status
)(struct regulator_dev
*);
212 /* get most efficient regulator operating mode for load */
213 unsigned int (*get_optimum_mode
) (struct regulator_dev
*, int input_uV
,
214 int output_uV
, int load_uA
);
215 /* set the load on the regulator */
216 int (*set_load
)(struct regulator_dev
*, int load_uA
);
218 /* control and report on bypass mode */
219 int (*set_bypass
)(struct regulator_dev
*dev
, bool enable
);
220 int (*get_bypass
)(struct regulator_dev
*dev
, bool *enable
);
222 /* the operations below are for configuration of regulator state when
223 * its parent PMIC enters a global STANDBY/HIBERNATE state */
225 /* set regulator suspend voltage */
226 int (*set_suspend_voltage
) (struct regulator_dev
*, int uV
);
228 /* enable/disable regulator in suspend state */
229 int (*set_suspend_enable
) (struct regulator_dev
*);
230 int (*set_suspend_disable
) (struct regulator_dev
*);
232 /* set regulator suspend operating mode (defined in consumer.h) */
233 int (*set_suspend_mode
) (struct regulator_dev
*, unsigned int mode
);
235 int (*resume
)(struct regulator_dev
*rdev
);
237 int (*set_pull_down
) (struct regulator_dev
*);
241 * Regulators can either control voltage or current.
243 enum regulator_type
{
249 * struct regulator_desc - Static regulator descriptor
251 * Each regulator registered with the core is described with a
252 * structure of this type and a struct regulator_config. This
253 * structure contains the non-varying parts of the regulator
256 * @name: Identifying name for the regulator.
257 * @supply_name: Identifying the regulator supply
258 * @of_match: Name used to identify regulator in DT.
259 * @of_match_full_name: A flag to indicate that the of_match string, if
260 * present, should be matched against the node full_name.
261 * @regulators_node: Name of node containing regulator definitions in DT.
262 * @of_parse_cb: Optional callback called only if of_match is present.
263 * Will be called for each regulator parsed from DT, during
265 * The regulator_config passed as argument to the callback will
266 * be a copy of config passed to regulator_register, valid only
267 * for this particular call. Callback may freely change the
268 * config but it cannot store it for later usage.
269 * Callback should return 0 on success or negative ERRNO
270 * indicating failure.
271 * @id: Numerical identifier for the regulator.
272 * @ops: Regulator operations table.
273 * @irq: Interrupt number for the regulator.
274 * @type: Indicates if the regulator is a voltage or current regulator.
275 * @owner: Module providing the regulator, used for refcounting.
277 * @continuous_voltage_range: Indicates if the regulator can set any
278 * voltage within constrains range.
279 * @n_voltages: Number of selectors available for ops.list_voltage().
280 * @n_current_limits: Number of selectors available for current limits
282 * @min_uV: Voltage given by the lowest selector (if linear mapping)
283 * @uV_step: Voltage increase with each selector (if linear mapping)
284 * @linear_min_sel: Minimal selector for starting linear mapping
285 * @fixed_uV: Fixed voltage of rails.
286 * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
287 * @min_dropout_uV: The minimum dropout voltage this regulator can handle
288 * @linear_ranges: A constant table of possible voltage ranges.
289 * @linear_range_selectors: A constant table of voltage range selectors.
290 * If pickable ranges are used each range must
291 * have corresponding selector here.
292 * @n_linear_ranges: Number of entries in the @linear_ranges (and in
293 * linear_range_selectors if used) table(s).
294 * @volt_table: Voltage mapping table (if table based mapping)
295 * @curr_table: Current limit mapping table (if table based mapping)
297 * @vsel_range_reg: Register for range selector when using pickable ranges
298 * and ``regulator_map_*_voltage_*_pickable`` functions.
299 * @vsel_range_mask: Mask for register bitfield used for range selector
300 * @vsel_reg: Register for selector when using ``regulator_map_*_voltage_*``
301 * @vsel_mask: Mask for register bitfield used for selector
302 * @vsel_step: Specify the resolution of selector stepping when setting
303 * voltage. If 0, then no stepping is done (requested selector is
304 * set directly), if >0 then the regulator API will ramp the
305 * voltage up/down gradually each time increasing/decreasing the
306 * selector by the specified step value.
307 * @csel_reg: Register for current limit selector using regmap set_current_limit
308 * @csel_mask: Mask for register bitfield used for current limit selector
309 * @apply_reg: Register for initiate voltage change on the output when
310 * using regulator_set_voltage_sel_regmap
311 * @apply_bit: Register bitfield used for initiate voltage change on the
312 * output when using regulator_set_voltage_sel_regmap
313 * @enable_reg: Register for control when using regmap enable/disable ops
314 * @enable_mask: Mask for control when using regmap enable/disable ops
315 * @enable_val: Enabling value for control when using regmap enable/disable ops
316 * @disable_val: Disabling value for control when using regmap enable/disable ops
317 * @enable_is_inverted: A flag to indicate set enable_mask bits to disable
318 * when using regulator_enable_regmap and friends APIs.
319 * @bypass_reg: Register for control when using regmap set_bypass
320 * @bypass_mask: Mask for control when using regmap set_bypass
321 * @bypass_val_on: Enabling value for control when using regmap set_bypass
322 * @bypass_val_off: Disabling value for control when using regmap set_bypass
323 * @active_discharge_off: Enabling value for control when using regmap
324 * set_active_discharge
325 * @active_discharge_on: Disabling value for control when using regmap
326 * set_active_discharge
327 * @active_discharge_mask: Mask for control when using regmap
328 * set_active_discharge
329 * @active_discharge_reg: Register for control when using regmap
330 * set_active_discharge
331 * @soft_start_reg: Register for control when using regmap set_soft_start
332 * @soft_start_mask: Mask for control when using regmap set_soft_start
333 * @soft_start_val_on: Enabling value for control when using regmap
335 * @pull_down_reg: Register for control when using regmap set_pull_down
336 * @pull_down_mask: Mask for control when using regmap set_pull_down
337 * @pull_down_val_on: Enabling value for control when using regmap
340 * @ramp_reg: Register for controlling the regulator ramp-rate.
341 * @ramp_mask: Bitmask for the ramp-rate control register.
342 * @ramp_delay_table: Table for mapping the regulator ramp-rate values. Values
343 * should be given in units of V/S (uV/uS). See the
344 * regulator_set_ramp_delay_regmap().
346 * @enable_time: Time taken for initial enable of regulator (in uS).
347 * @off_on_delay: guard time (in uS), before re-enabling a regulator
349 * @poll_enabled_time: The polling interval (in uS) to use while checking that
350 * the regulator was actually enabled. Max upto enable_time.
352 * @of_map_mode: Maps a hardware mode defined in a DeviceTree to a standard mode
354 struct regulator_desc
{
356 const char *supply_name
;
357 const char *of_match
;
358 bool of_match_full_name
;
359 const char *regulators_node
;
360 int (*of_parse_cb
)(struct device_node
*,
361 const struct regulator_desc
*,
362 struct regulator_config
*);
364 unsigned int continuous_voltage_range
:1;
366 unsigned int n_current_limits
;
367 const struct regulator_ops
*ops
;
369 enum regulator_type type
;
370 struct module
*owner
;
373 unsigned int uV_step
;
374 unsigned int linear_min_sel
;
376 unsigned int ramp_delay
;
379 const struct linear_range
*linear_ranges
;
380 const unsigned int *linear_range_selectors
;
384 const unsigned int *volt_table
;
385 const unsigned int *curr_table
;
387 unsigned int vsel_range_reg
;
388 unsigned int vsel_range_mask
;
389 unsigned int vsel_reg
;
390 unsigned int vsel_mask
;
391 unsigned int vsel_step
;
392 unsigned int csel_reg
;
393 unsigned int csel_mask
;
394 unsigned int apply_reg
;
395 unsigned int apply_bit
;
396 unsigned int enable_reg
;
397 unsigned int enable_mask
;
398 unsigned int enable_val
;
399 unsigned int disable_val
;
400 bool enable_is_inverted
;
401 unsigned int bypass_reg
;
402 unsigned int bypass_mask
;
403 unsigned int bypass_val_on
;
404 unsigned int bypass_val_off
;
405 unsigned int active_discharge_on
;
406 unsigned int active_discharge_off
;
407 unsigned int active_discharge_mask
;
408 unsigned int active_discharge_reg
;
409 unsigned int soft_start_reg
;
410 unsigned int soft_start_mask
;
411 unsigned int soft_start_val_on
;
412 unsigned int pull_down_reg
;
413 unsigned int pull_down_mask
;
414 unsigned int pull_down_val_on
;
415 unsigned int ramp_reg
;
416 unsigned int ramp_mask
;
417 const unsigned int *ramp_delay_table
;
418 unsigned int n_ramp_values
;
420 unsigned int enable_time
;
422 unsigned int off_on_delay
;
424 unsigned int poll_enabled_time
;
426 unsigned int (*of_map_mode
)(unsigned int mode
);
430 * struct regulator_config - Dynamic regulator descriptor
432 * Each regulator registered with the core is described with a
433 * structure of this type and a struct regulator_desc. This structure
434 * contains the runtime variable parts of the regulator description.
436 * @dev: struct device for the regulator
437 * @init_data: platform provided init data, passed through by driver
438 * @driver_data: private regulator data
439 * @of_node: OpenFirmware node to parse for device tree bindings (may be
441 * @regmap: regmap to use for core regmap helpers if dev_get_regmap() is
443 * @ena_gpiod: GPIO controlling regulator enable.
445 struct regulator_config
{
447 const struct regulator_init_data
*init_data
;
449 struct device_node
*of_node
;
450 struct regmap
*regmap
;
452 struct gpio_desc
*ena_gpiod
;
456 * struct regulator_err_state - regulator error/notification status
458 * @rdev: Regulator which status the struct indicates.
459 * @notifs: Events which have occurred on the regulator.
460 * @errors: Errors which are active on the regulator.
461 * @possible_errs: Errors which can be signaled (by given IRQ).
463 struct regulator_err_state
{
464 struct regulator_dev
*rdev
;
465 unsigned long notifs
;
466 unsigned long errors
;
471 * struct regulator_irq_data - regulator error/notification status data
473 * @states: Status structs for each of the associated regulators.
474 * @num_states: Amount of associated regulators.
475 * @data: Driver data pointer given at regulator_irq_desc.
476 * @opaque: Value storage for IC driver. Core does not update this. ICs
477 * may want to store status register value here at map_event and
478 * compare contents at 'renable' callback to see if new problems
479 * have been added to status. If that is the case it may be
480 * desirable to return REGULATOR_ERROR_CLEARED and not
481 * REGULATOR_ERROR_ON to allow IRQ fire again and to generate
482 * notifications also for the new issues.
484 * This structure is passed to 'map_event' and 'renable' callbacks for
485 * reporting regulator status to core.
487 struct regulator_irq_data
{
488 struct regulator_err_state
*states
;
495 * struct regulator_irq_desc - notification sender for IRQ based events.
497 * @name: The visible name for the IRQ
498 * @fatal_cnt: If this IRQ is used to signal HW damaging condition it may be
499 * best to shut-down regulator(s) or reboot the SOC if error
500 * handling is repeatedly failing. If fatal_cnt is given the IRQ
501 * handling is aborted if it fails for fatal_cnt times and die()
502 * callback (if populated) or BUG() is called to try to prevent
504 * @reread_ms: The time which is waited before attempting to re-read status
505 * at the worker if IC reading fails. Immediate re-read is done
506 * if time is not specified.
507 * @irq_off_ms: The time which IRQ is kept disabled before re-evaluating the
508 * status for devices which keep IRQ disabled for duration of the
509 * error. If this is not given the IRQ is left enabled and renable
511 * @skip_off: If set to true the IRQ handler will attempt to check if any of
512 * the associated regulators are enabled prior to taking other
513 * actions. If no regulators are enabled and this is set to true
514 * a spurious IRQ is assumed and IRQ_NONE is returned.
515 * @high_prio: Boolean to indicate that high priority WQ should be used.
516 * @data: Driver private data pointer which will be passed as such to
517 * the renable, map_event and die callbacks in regulator_irq_data.
518 * @die: Protection callback. If IC status reading or recovery actions
519 * fail fatal_cnt times this callback or BUG() is called. This
520 * callback should implement a final protection attempt like
521 * disabling the regulator. If protection succeeded this may
522 * return 0. If anything else is returned the core assumes final
523 * protection failed and calls BUG() as a last resort.
524 * @map_event: Driver callback to map IRQ status into regulator devices with
525 * events / errors. NOTE: callback MUST initialize both the
526 * errors and notifs for all rdevs which it signals having
527 * active events as core does not clean the map data.
528 * REGULATOR_FAILED_RETRY can be returned to indicate that the
529 * status reading from IC failed. If this is repeated for
530 * fatal_cnt times the core will call die() callback or power-off
531 * the system as a last resort to protect the HW.
532 * @renable: Optional callback to check status (if HW supports that) before
533 * re-enabling IRQ. If implemented this should clear the error
534 * flags so that errors fetched by regulator_get_error_flags()
535 * are updated. If callback is not implemented then errors are
536 * assumed to be cleared and IRQ is re-enabled.
537 * REGULATOR_FAILED_RETRY can be returned to
538 * indicate that the status reading from IC failed. If this is
539 * repeated for 'fatal_cnt' times the core will call die()
540 * callback or if die() is not populated then attempt to power-off
541 * the system as a last resort to protect the HW.
542 * Returning zero indicates that the problem in HW has been solved
543 * and IRQ will be re-enabled. Returning REGULATOR_ERROR_ON
544 * indicates the error condition is still active and keeps IRQ
545 * disabled. Please note that returning REGULATOR_ERROR_ON does
546 * not retrigger evaluating what events are active or resending
547 * notifications. If this is needed you probably want to return
548 * zero and allow IRQ to retrigger causing events to be
549 * re-evaluated and re-sent.
551 * This structure is used for registering regulator IRQ notification helper.
553 struct regulator_irq_desc
{
563 int (*die
)(struct regulator_irq_data
*rid
);
564 int (*map_event
)(int irq
, struct regulator_irq_data
*rid
,
565 unsigned long *dev_mask
);
566 int (*renable
)(struct regulator_irq_data
*rid
);
570 * Return values for regulator IRQ helpers.
573 REGULATOR_ERROR_CLEARED
,
574 REGULATOR_FAILED_RETRY
,
579 * struct coupling_desc
581 * Describes coupling of regulators. Each regulator should have
582 * at least a pointer to itself in coupled_rdevs array.
583 * When a new coupled regulator is resolved, n_resolved is
586 struct coupling_desc
{
587 struct regulator_dev
**coupled_rdevs
;
588 struct regulator_coupler
*coupler
;
594 * struct regulator_dev
596 * Voltage / Current regulator class device. One for each
599 * This should *not* be used directly by anything except the regulator
600 * core and notification injection (which should take the mutex and do
601 * no other direct access).
603 struct regulator_dev
{
604 const struct regulator_desc
*desc
;
610 /* lists we belong to */
611 struct list_head list
; /* list of all regulators */
614 struct list_head consumer_list
; /* consumers we supply */
616 struct coupling_desc coupling_desc
;
618 struct blocking_notifier_head notifier
;
619 struct ww_mutex mutex
; /* consumer lock */
620 struct task_struct
*mutex_owner
;
622 struct module
*owner
;
624 struct regulation_constraints
*constraints
;
625 struct regulator
*supply
; /* for tree */
626 const char *supply_name
;
627 struct regmap
*regmap
;
629 struct delayed_work disable_work
;
631 void *reg_data
; /* regulator_dev data */
633 struct dentry
*debugfs
;
635 struct regulator_enable_gpio
*ena_pin
;
636 unsigned int ena_gpio_state
:1;
638 unsigned int is_switch
:1;
640 /* time when this regulator was disabled last time */
647 struct regulator_dev
*
648 regulator_register(const struct regulator_desc
*regulator_desc
,
649 const struct regulator_config
*config
);
650 struct regulator_dev
*
651 devm_regulator_register(struct device
*dev
,
652 const struct regulator_desc
*regulator_desc
,
653 const struct regulator_config
*config
);
654 void regulator_unregister(struct regulator_dev
*rdev
);
656 int regulator_notifier_call_chain(struct regulator_dev
*rdev
,
657 unsigned long event
, void *data
);
658 void *devm_regulator_irq_helper(struct device
*dev
,
659 const struct regulator_irq_desc
*d
, int irq
,
660 int irq_flags
, int common_errs
,
661 int *per_rdev_errs
, struct regulator_dev
**rdev
,
663 void *regulator_irq_helper(struct device
*dev
,
664 const struct regulator_irq_desc
*d
, int irq
,
665 int irq_flags
, int common_errs
, int *per_rdev_errs
,
666 struct regulator_dev
**rdev
, int rdev_amount
);
667 void regulator_irq_helper_cancel(void **handle
);
669 void *rdev_get_drvdata(struct regulator_dev
*rdev
);
670 struct device
*rdev_get_dev(struct regulator_dev
*rdev
);
671 struct regmap
*rdev_get_regmap(struct regulator_dev
*rdev
);
672 int rdev_get_id(struct regulator_dev
*rdev
);
674 int regulator_mode_to_status(unsigned int);
676 int regulator_list_voltage_linear(struct regulator_dev
*rdev
,
677 unsigned int selector
);
678 int regulator_list_voltage_pickable_linear_range(struct regulator_dev
*rdev
,
679 unsigned int selector
);
680 int regulator_list_voltage_linear_range(struct regulator_dev
*rdev
,
681 unsigned int selector
);
682 int regulator_list_voltage_table(struct regulator_dev
*rdev
,
683 unsigned int selector
);
684 int regulator_map_voltage_linear(struct regulator_dev
*rdev
,
685 int min_uV
, int max_uV
);
686 int regulator_map_voltage_pickable_linear_range(struct regulator_dev
*rdev
,
687 int min_uV
, int max_uV
);
688 int regulator_map_voltage_linear_range(struct regulator_dev
*rdev
,
689 int min_uV
, int max_uV
);
690 int regulator_map_voltage_iterate(struct regulator_dev
*rdev
,
691 int min_uV
, int max_uV
);
692 int regulator_map_voltage_ascend(struct regulator_dev
*rdev
,
693 int min_uV
, int max_uV
);
694 int regulator_get_voltage_sel_pickable_regmap(struct regulator_dev
*rdev
);
695 int regulator_set_voltage_sel_pickable_regmap(struct regulator_dev
*rdev
,
697 int regulator_get_voltage_sel_regmap(struct regulator_dev
*rdev
);
698 int regulator_set_voltage_sel_regmap(struct regulator_dev
*rdev
, unsigned sel
);
699 int regulator_is_enabled_regmap(struct regulator_dev
*rdev
);
700 int regulator_enable_regmap(struct regulator_dev
*rdev
);
701 int regulator_disable_regmap(struct regulator_dev
*rdev
);
702 int regulator_set_voltage_time_sel(struct regulator_dev
*rdev
,
703 unsigned int old_selector
,
704 unsigned int new_selector
);
705 int regulator_set_bypass_regmap(struct regulator_dev
*rdev
, bool enable
);
706 int regulator_get_bypass_regmap(struct regulator_dev
*rdev
, bool *enable
);
707 int regulator_set_soft_start_regmap(struct regulator_dev
*rdev
);
708 int regulator_set_pull_down_regmap(struct regulator_dev
*rdev
);
710 int regulator_set_active_discharge_regmap(struct regulator_dev
*rdev
,
712 int regulator_set_current_limit_regmap(struct regulator_dev
*rdev
,
713 int min_uA
, int max_uA
);
714 int regulator_get_current_limit_regmap(struct regulator_dev
*rdev
);
715 void *regulator_get_init_drvdata(struct regulator_init_data
*reg_init_data
);
716 int regulator_set_ramp_delay_regmap(struct regulator_dev
*rdev
, int ramp_delay
);
717 int regulator_sync_voltage_rdev(struct regulator_dev
*rdev
);
720 * Helper functions intended to be used by regulator drivers prior registering
723 int regulator_desc_list_voltage_linear_range(const struct regulator_desc
*desc
,
724 unsigned int selector
);
726 int regulator_desc_list_voltage_linear(const struct regulator_desc
*desc
,
727 unsigned int selector
);
729 #ifdef CONFIG_REGULATOR
730 const char *rdev_get_name(struct regulator_dev
*rdev
);
732 static inline const char *rdev_get_name(struct regulator_dev
*rdev
)