1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  Universal power supply monitor class
4  *
5  *  Copyright © 2007  Anton Vorontsov <cbou@mail.ru>
6  *  Copyright © 2004  Szabolcs Gyurko
7  *  Copyright © 2003  Ian Molton <spyro@f2s.com>
8  *
9  *  Modified: 2004, Oct     Szabolcs Gyurko
10  */
11 
12 #ifndef __LINUX_POWER_SUPPLY_H__
13 #define __LINUX_POWER_SUPPLY_H__
14 
15 #include <linux/device.h>
16 #include <linux/workqueue.h>
17 #include <linux/leds.h>
18 #include <linux/spinlock.h>
19 #include <linux/notifier.h>
20 
21 /*
22  * All voltages, currents, charges, energies, time and temperatures in uV,
23  * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
24  * stated. It's driver's job to convert its raw values to units in which
25  * this class operates.
26  */
27 
28 /*
29  * For systems where the charger determines the maximum battery capacity
30  * the min and max fields should be used to present these values to user
31  * space. Unused/unknown fields will not appear in sysfs.
32  */
33 
34 enum {
35 	POWER_SUPPLY_STATUS_UNKNOWN = 0,
36 	POWER_SUPPLY_STATUS_CHARGING,
37 	POWER_SUPPLY_STATUS_DISCHARGING,
38 	POWER_SUPPLY_STATUS_NOT_CHARGING,
39 	POWER_SUPPLY_STATUS_FULL,
40 };
41 
42 /* What algorithm is the charger using? */
43 enum {
44 	POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
45 	POWER_SUPPLY_CHARGE_TYPE_NONE,
46 	POWER_SUPPLY_CHARGE_TYPE_TRICKLE,	/* slow speed */
47 	POWER_SUPPLY_CHARGE_TYPE_FAST,		/* fast speed */
48 	POWER_SUPPLY_CHARGE_TYPE_STANDARD,	/* normal speed */
49 	POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE,	/* dynamically adjusted speed */
50 	POWER_SUPPLY_CHARGE_TYPE_CUSTOM,	/* use CHARGE_CONTROL_* props */
51 	POWER_SUPPLY_CHARGE_TYPE_LONGLIFE,	/* slow speed, longer life */
52 };
53 
54 enum {
55 	POWER_SUPPLY_HEALTH_UNKNOWN = 0,
56 	POWER_SUPPLY_HEALTH_GOOD,
57 	POWER_SUPPLY_HEALTH_OVERHEAT,
58 	POWER_SUPPLY_HEALTH_DEAD,
59 	POWER_SUPPLY_HEALTH_OVERVOLTAGE,
60 	POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
61 	POWER_SUPPLY_HEALTH_COLD,
62 	POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
63 	POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
64 	POWER_SUPPLY_HEALTH_OVERCURRENT,
65 	POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
66 	POWER_SUPPLY_HEALTH_WARM,
67 	POWER_SUPPLY_HEALTH_COOL,
68 	POWER_SUPPLY_HEALTH_HOT,
69 };
70 
71 enum {
72 	POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
73 	POWER_SUPPLY_TECHNOLOGY_NiMH,
74 	POWER_SUPPLY_TECHNOLOGY_LION,
75 	POWER_SUPPLY_TECHNOLOGY_LIPO,
76 	POWER_SUPPLY_TECHNOLOGY_LiFe,
77 	POWER_SUPPLY_TECHNOLOGY_NiCd,
78 	POWER_SUPPLY_TECHNOLOGY_LiMn,
79 };
80 
81 enum {
82 	POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
83 	POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
84 	POWER_SUPPLY_CAPACITY_LEVEL_LOW,
85 	POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
86 	POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
87 	POWER_SUPPLY_CAPACITY_LEVEL_FULL,
88 };
89 
90 enum {
91 	POWER_SUPPLY_SCOPE_UNKNOWN = 0,
92 	POWER_SUPPLY_SCOPE_SYSTEM,
93 	POWER_SUPPLY_SCOPE_DEVICE,
94 };
95 
96 enum power_supply_property {
97 	/* Properties of type `int' */
98 	POWER_SUPPLY_PROP_STATUS = 0,
99 	POWER_SUPPLY_PROP_CHARGE_TYPE,
100 	POWER_SUPPLY_PROP_HEALTH,
101 	POWER_SUPPLY_PROP_PRESENT,
102 	POWER_SUPPLY_PROP_ONLINE,
103 	POWER_SUPPLY_PROP_AUTHENTIC,
104 	POWER_SUPPLY_PROP_TECHNOLOGY,
105 	POWER_SUPPLY_PROP_CYCLE_COUNT,
106 	POWER_SUPPLY_PROP_VOLTAGE_MAX,
107 	POWER_SUPPLY_PROP_VOLTAGE_MIN,
108 	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
109 	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
110 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
111 	POWER_SUPPLY_PROP_VOLTAGE_AVG,
112 	POWER_SUPPLY_PROP_VOLTAGE_OCV,
113 	POWER_SUPPLY_PROP_VOLTAGE_BOOT,
114 	POWER_SUPPLY_PROP_CURRENT_MAX,
115 	POWER_SUPPLY_PROP_CURRENT_NOW,
116 	POWER_SUPPLY_PROP_CURRENT_AVG,
117 	POWER_SUPPLY_PROP_CURRENT_BOOT,
118 	POWER_SUPPLY_PROP_POWER_NOW,
119 	POWER_SUPPLY_PROP_POWER_AVG,
120 	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
121 	POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
122 	POWER_SUPPLY_PROP_CHARGE_FULL,
123 	POWER_SUPPLY_PROP_CHARGE_EMPTY,
124 	POWER_SUPPLY_PROP_CHARGE_NOW,
125 	POWER_SUPPLY_PROP_CHARGE_AVG,
126 	POWER_SUPPLY_PROP_CHARGE_COUNTER,
127 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
128 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
129 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
130 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
131 	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
132 	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
133 	POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
134 	POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
135 	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
136 	POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
137 	POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
138 	POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
139 	POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
140 	POWER_SUPPLY_PROP_ENERGY_FULL,
141 	POWER_SUPPLY_PROP_ENERGY_EMPTY,
142 	POWER_SUPPLY_PROP_ENERGY_NOW,
143 	POWER_SUPPLY_PROP_ENERGY_AVG,
144 	POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
145 	POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
146 	POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
147 	POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
148 	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
149 	POWER_SUPPLY_PROP_TEMP,
150 	POWER_SUPPLY_PROP_TEMP_MAX,
151 	POWER_SUPPLY_PROP_TEMP_MIN,
152 	POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
153 	POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
154 	POWER_SUPPLY_PROP_TEMP_AMBIENT,
155 	POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
156 	POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
157 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
158 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
159 	POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
160 	POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
161 	POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
162 	POWER_SUPPLY_PROP_USB_TYPE,
163 	POWER_SUPPLY_PROP_SCOPE,
164 	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
165 	POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
166 	POWER_SUPPLY_PROP_CALIBRATE,
167 	POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
168 	POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
169 	POWER_SUPPLY_PROP_MANUFACTURE_DAY,
170 	/* Properties of type `const char *' */
171 	POWER_SUPPLY_PROP_MODEL_NAME,
172 	POWER_SUPPLY_PROP_MANUFACTURER,
173 	POWER_SUPPLY_PROP_SERIAL_NUMBER,
174 };
175 
176 enum power_supply_type {
177 	POWER_SUPPLY_TYPE_UNKNOWN = 0,
178 	POWER_SUPPLY_TYPE_BATTERY,
179 	POWER_SUPPLY_TYPE_UPS,
180 	POWER_SUPPLY_TYPE_MAINS,
181 	POWER_SUPPLY_TYPE_USB,			/* Standard Downstream Port */
182 	POWER_SUPPLY_TYPE_USB_DCP,		/* Dedicated Charging Port */
183 	POWER_SUPPLY_TYPE_USB_CDP,		/* Charging Downstream Port */
184 	POWER_SUPPLY_TYPE_USB_ACA,		/* Accessory Charger Adapters */
185 	POWER_SUPPLY_TYPE_USB_TYPE_C,		/* Type C Port */
186 	POWER_SUPPLY_TYPE_USB_PD,		/* Power Delivery Port */
187 	POWER_SUPPLY_TYPE_USB_PD_DRP,		/* PD Dual Role Port */
188 	POWER_SUPPLY_TYPE_APPLE_BRICK_ID,	/* Apple Charging Method */
189 	POWER_SUPPLY_TYPE_WIRELESS,		/* Wireless */
190 };
191 
192 enum power_supply_usb_type {
193 	POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
194 	POWER_SUPPLY_USB_TYPE_SDP,		/* Standard Downstream Port */
195 	POWER_SUPPLY_USB_TYPE_DCP,		/* Dedicated Charging Port */
196 	POWER_SUPPLY_USB_TYPE_CDP,		/* Charging Downstream Port */
197 	POWER_SUPPLY_USB_TYPE_ACA,		/* Accessory Charger Adapters */
198 	POWER_SUPPLY_USB_TYPE_C,		/* Type C Port */
199 	POWER_SUPPLY_USB_TYPE_PD,		/* Power Delivery Port */
200 	POWER_SUPPLY_USB_TYPE_PD_DRP,		/* PD Dual Role Port */
201 	POWER_SUPPLY_USB_TYPE_PD_PPS,		/* PD Programmable Power Supply */
202 	POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID,	/* Apple Charging Method */
203 };
204 
205 enum power_supply_notifier_events {
206 	PSY_EVENT_PROP_CHANGED,
207 };
208 
209 union power_supply_propval {
210 	int intval;
211 	const char *strval;
212 };
213 
214 struct device_node;
215 struct power_supply;
216 
217 /* Run-time specific power supply configuration */
218 struct power_supply_config {
219 	struct device_node *of_node;
220 	struct fwnode_handle *fwnode;
221 
222 	/* Driver private data */
223 	void *drv_data;
224 
225 	/* Device specific sysfs attributes */
226 	const struct attribute_group **attr_grp;
227 
228 	char **supplied_to;
229 	size_t num_supplicants;
230 };
231 
232 /* Description of power supply */
233 struct power_supply_desc {
234 	const char *name;
235 	enum power_supply_type type;
236 	const enum power_supply_usb_type *usb_types;
237 	size_t num_usb_types;
238 	const enum power_supply_property *properties;
239 	size_t num_properties;
240 
241 	/*
242 	 * Functions for drivers implementing power supply class.
243 	 * These shouldn't be called directly by other drivers for accessing
244 	 * this power supply. Instead use power_supply_*() functions (for
245 	 * example power_supply_get_property()).
246 	 */
247 	int (*get_property)(struct power_supply *psy,
248 			    enum power_supply_property psp,
249 			    union power_supply_propval *val);
250 	int (*set_property)(struct power_supply *psy,
251 			    enum power_supply_property psp,
252 			    const union power_supply_propval *val);
253 	/*
254 	 * property_is_writeable() will be called during registration
255 	 * of power supply. If this happens during device probe then it must
256 	 * not access internal data of device (because probe did not end).
257 	 */
258 	int (*property_is_writeable)(struct power_supply *psy,
259 				     enum power_supply_property psp);
260 	void (*external_power_changed)(struct power_supply *psy);
261 	void (*set_charged)(struct power_supply *psy);
262 
263 	/*
264 	 * Set if thermal zone should not be created for this power supply.
265 	 * For example for virtual supplies forwarding calls to actual
266 	 * sensors or other supplies.
267 	 */
268 	bool no_thermal;
269 	/* For APM emulation, think legacy userspace. */
270 	int use_for_apm;
271 };
272 
273 struct power_supply {
274 	const struct power_supply_desc *desc;
275 
276 	char **supplied_to;
277 	size_t num_supplicants;
278 
279 	char **supplied_from;
280 	size_t num_supplies;
281 	struct device_node *of_node;
282 
283 	/* Driver private data */
284 	void *drv_data;
285 
286 	/* private */
287 	struct device dev;
288 	struct work_struct changed_work;
289 	struct delayed_work deferred_register_work;
290 	spinlock_t changed_lock;
291 	bool changed;
292 	bool initialized;
293 	bool removing;
294 	atomic_t use_cnt;
295 #ifdef CONFIG_THERMAL
296 	struct thermal_zone_device *tzd;
297 	struct thermal_cooling_device *tcd;
298 #endif
299 
300 #ifdef CONFIG_LEDS_TRIGGERS
301 	struct led_trigger *charging_full_trig;
302 	char *charging_full_trig_name;
303 	struct led_trigger *charging_trig;
304 	char *charging_trig_name;
305 	struct led_trigger *full_trig;
306 	char *full_trig_name;
307 	struct led_trigger *online_trig;
308 	char *online_trig_name;
309 	struct led_trigger *charging_blink_full_solid_trig;
310 	char *charging_blink_full_solid_trig_name;
311 #endif
312 };
313 
314 /*
315  * This is recommended structure to specify static power supply parameters.
316  * Generic one, parametrizable for different power supplies. Power supply
317  * class itself does not use it, but that's what implementing most platform
318  * drivers, should try reuse for consistency.
319  */
320 
321 struct power_supply_info {
322 	const char *name;
323 	int technology;
324 	int voltage_max_design;
325 	int voltage_min_design;
326 	int charge_full_design;
327 	int charge_empty_design;
328 	int energy_full_design;
329 	int energy_empty_design;
330 	int use_for_apm;
331 };
332 
333 struct power_supply_battery_ocv_table {
334 	int ocv;	/* microVolts */
335 	int capacity;	/* percent */
336 };
337 
338 struct power_supply_resistance_temp_table {
339 	int temp;	/* celsius */
340 	int resistance;	/* internal resistance percent */
341 };
342 
343 #define POWER_SUPPLY_OCV_TEMP_MAX 20
344 
345 /*
346  * This is the recommended struct to manage static battery parameters,
347  * populated by power_supply_get_battery_info(). Most platform drivers should
348  * use these for consistency.
349  * Its field names must correspond to elements in enum power_supply_property.
350  * The default field value is -EINVAL.
351  * Power supply class itself doesn't use this.
352  */
353 
354 struct power_supply_battery_info {
355 	int energy_full_design_uwh;	    /* microWatt-hours */
356 	int charge_full_design_uah;	    /* microAmp-hours */
357 	int voltage_min_design_uv;	    /* microVolts */
358 	int voltage_max_design_uv;	    /* microVolts */
359 	int tricklecharge_current_ua;	    /* microAmps */
360 	int precharge_current_ua;	    /* microAmps */
361 	int precharge_voltage_max_uv;	    /* microVolts */
362 	int charge_term_current_ua;	    /* microAmps */
363 	int charge_restart_voltage_uv;	    /* microVolts */
364 	int overvoltage_limit_uv;	    /* microVolts */
365 	int constant_charge_current_max_ua; /* microAmps */
366 	int constant_charge_voltage_max_uv; /* microVolts */
367 	int factory_internal_resistance_uohm;   /* microOhms */
368 	int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
369 	int temp_ambient_alert_min;             /* celsius */
370 	int temp_ambient_alert_max;             /* celsius */
371 	int temp_alert_min;                     /* celsius */
372 	int temp_alert_max;                     /* celsius */
373 	int temp_min;                           /* celsius */
374 	int temp_max;                           /* celsius */
375 	struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
376 	int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
377 	struct power_supply_resistance_temp_table *resist_table;
378 	int resist_table_size;
379 };
380 
381 extern struct atomic_notifier_head power_supply_notifier;
382 extern int power_supply_reg_notifier(struct notifier_block *nb);
383 extern void power_supply_unreg_notifier(struct notifier_block *nb);
384 extern struct power_supply *power_supply_get_by_name(const char *name);
385 extern void power_supply_put(struct power_supply *psy);
386 #ifdef CONFIG_OF
387 extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
388 							const char *property);
389 extern struct power_supply *devm_power_supply_get_by_phandle(
390 				    struct device *dev, const char *property);
391 #else /* !CONFIG_OF */
392 static inline struct power_supply *
power_supply_get_by_phandle(struct device_node * np,const char * property)393 power_supply_get_by_phandle(struct device_node *np, const char *property)
394 { return NULL; }
395 static inline struct power_supply *
devm_power_supply_get_by_phandle(struct device * dev,const char * property)396 devm_power_supply_get_by_phandle(struct device *dev, const char *property)
397 { return NULL; }
398 #endif /* CONFIG_OF */
399 
400 extern int power_supply_get_battery_info(struct power_supply *psy,
401 					 struct power_supply_battery_info *info);
402 extern void power_supply_put_battery_info(struct power_supply *psy,
403 					  struct power_supply_battery_info *info);
404 extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
405 				       int table_len, int ocv);
406 extern struct power_supply_battery_ocv_table *
407 power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
408 				int temp, int *table_len);
409 extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
410 					int ocv, int temp);
411 extern int
412 power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
413 				int table_len, int temp);
414 extern void power_supply_changed(struct power_supply *psy);
415 extern int power_supply_am_i_supplied(struct power_supply *psy);
416 extern int power_supply_set_input_current_limit_from_supplier(
417 					 struct power_supply *psy);
418 extern int power_supply_set_battery_charged(struct power_supply *psy);
419 
420 #ifdef CONFIG_POWER_SUPPLY
421 extern int power_supply_is_system_supplied(void);
422 #else
power_supply_is_system_supplied(void)423 static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
424 #endif
425 
426 extern int power_supply_get_property(struct power_supply *psy,
427 			    enum power_supply_property psp,
428 			    union power_supply_propval *val);
429 extern int power_supply_set_property(struct power_supply *psy,
430 			    enum power_supply_property psp,
431 			    const union power_supply_propval *val);
432 extern int power_supply_property_is_writeable(struct power_supply *psy,
433 					enum power_supply_property psp);
434 extern void power_supply_external_power_changed(struct power_supply *psy);
435 
436 extern struct power_supply *__must_check
437 power_supply_register(struct device *parent,
438 				 const struct power_supply_desc *desc,
439 				 const struct power_supply_config *cfg);
440 extern struct power_supply *__must_check
441 power_supply_register_no_ws(struct device *parent,
442 				 const struct power_supply_desc *desc,
443 				 const struct power_supply_config *cfg);
444 extern struct power_supply *__must_check
445 devm_power_supply_register(struct device *parent,
446 				 const struct power_supply_desc *desc,
447 				 const struct power_supply_config *cfg);
448 extern struct power_supply *__must_check
449 devm_power_supply_register_no_ws(struct device *parent,
450 				 const struct power_supply_desc *desc,
451 				 const struct power_supply_config *cfg);
452 extern void power_supply_unregister(struct power_supply *psy);
453 extern int power_supply_powers(struct power_supply *psy, struct device *dev);
454 
455 #define to_power_supply(device) container_of(device, struct power_supply, dev)
456 
457 extern void *power_supply_get_drvdata(struct power_supply *psy);
458 /* For APM emulation, think legacy userspace. */
459 extern struct class *power_supply_class;
460 
power_supply_is_amp_property(enum power_supply_property psp)461 static inline bool power_supply_is_amp_property(enum power_supply_property psp)
462 {
463 	switch (psp) {
464 	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
465 	case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
466 	case POWER_SUPPLY_PROP_CHARGE_FULL:
467 	case POWER_SUPPLY_PROP_CHARGE_EMPTY:
468 	case POWER_SUPPLY_PROP_CHARGE_NOW:
469 	case POWER_SUPPLY_PROP_CHARGE_AVG:
470 	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
471 	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
472 	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
473 	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
474 	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
475 	case POWER_SUPPLY_PROP_CURRENT_MAX:
476 	case POWER_SUPPLY_PROP_CURRENT_NOW:
477 	case POWER_SUPPLY_PROP_CURRENT_AVG:
478 	case POWER_SUPPLY_PROP_CURRENT_BOOT:
479 		return 1;
480 	default:
481 		break;
482 	}
483 
484 	return 0;
485 }
486 
power_supply_is_watt_property(enum power_supply_property psp)487 static inline bool power_supply_is_watt_property(enum power_supply_property psp)
488 {
489 	switch (psp) {
490 	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
491 	case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
492 	case POWER_SUPPLY_PROP_ENERGY_FULL:
493 	case POWER_SUPPLY_PROP_ENERGY_EMPTY:
494 	case POWER_SUPPLY_PROP_ENERGY_NOW:
495 	case POWER_SUPPLY_PROP_ENERGY_AVG:
496 	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
497 	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
498 	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
499 	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
500 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
501 	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
502 	case POWER_SUPPLY_PROP_VOLTAGE_OCV:
503 	case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
504 	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
505 	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
506 	case POWER_SUPPLY_PROP_POWER_NOW:
507 		return 1;
508 	default:
509 		break;
510 	}
511 
512 	return 0;
513 }
514 
515 #ifdef CONFIG_POWER_SUPPLY_HWMON
516 int power_supply_add_hwmon_sysfs(struct power_supply *psy);
517 void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
518 #else
power_supply_add_hwmon_sysfs(struct power_supply * psy)519 static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
520 {
521 	return 0;
522 }
523 
524 static inline
power_supply_remove_hwmon_sysfs(struct power_supply * psy)525 void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
526 #endif
527 
528 #endif /* __LINUX_POWER_SUPPLY_H__ */
529