include/linux/power_supply.h

   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         unsigned int technology;            /* from the enum above */
 356         int energy_full_design_uwh;         /* microWatt-hours */
 357         int charge_full_design_uah;         /* microAmp-hours */
 358         int voltage_min_design_uv;          /* microVolts */
 359         int voltage_max_design_uv;          /* microVolts */
 360         int tricklecharge_current_ua;       /* microAmps */
 361         int precharge_current_ua;           /* microAmps */
 362         int precharge_voltage_max_uv;       /* microVolts */
 363         int charge_term_current_ua;         /* microAmps */
 364         int charge_restart_voltage_uv;      /* microVolts */
 365         int overvoltage_limit_uv;           /* microVolts */
 366         int constant_charge_current_max_ua; /* microAmps */
 367         int constant_charge_voltage_max_uv; /* microVolts */
 368         int factory_internal_resistance_uohm;   /* microOhms */
 369         int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
 370         int temp_ambient_alert_min;             /* celsius */
 371         int temp_ambient_alert_max;             /* celsius */
 372         int temp_alert_min;                     /* celsius */
 373         int temp_alert_max;                     /* celsius */
 374         int temp_min;                           /* celsius */
 375         int temp_max;                           /* celsius */
 376         struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
 377         int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
 378         struct power_supply_resistance_temp_table *resist_table;
 379         int resist_table_size;
 380 };
 381
 382 extern struct atomic_notifier_head power_supply_notifier;
 383 extern int power_supply_reg_notifier(struct notifier_block *nb);
 384 extern void power_supply_unreg_notifier(struct notifier_block *nb);
 385 #if IS_ENABLED(CONFIG_POWER_SUPPLY)
 386 extern struct power_supply *power_supply_get_by_name(const char *name);
 387 extern void power_supply_put(struct power_supply *psy);
 388 #else
 389 static inline void power_supply_put(struct power_supply *psy) {}
 390 static inline struct power_supply *power_supply_get_by_name(const char *name)
 391 { return NULL; }
 392 #endif
 393 #ifdef CONFIG_OF
 394 extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
 395                                                         const char *property);
 396 extern struct power_supply *devm_power_supply_get_by_phandle(
 397                                     struct device *dev, const char *property);
 398 #else /* !CONFIG_OF */
 399 static inline struct power_supply *
 400 power_supply_get_by_phandle(struct device_node *np, const char *property)
 401 { return NULL; }
 402 static inline struct power_supply *
 403 devm_power_supply_get_by_phandle(struct device *dev, const char *property)
 404 { return NULL; }
 405 #endif /* CONFIG_OF */
 406
 407 extern int power_supply_get_battery_info(struct power_supply *psy,
 408                                          struct power_supply_battery_info *info);
 409 extern void power_supply_put_battery_info(struct power_supply *psy,
 410                                           struct power_supply_battery_info *info);
 411 extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
 412                                        int table_len, int ocv);
 413 extern struct power_supply_battery_ocv_table *
 414 power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
 415                                 int temp, int *table_len);
 416 extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
 417                                         int ocv, int temp);
 418 extern int
 419 power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
 420                                 int table_len, int temp);
 421 extern void power_supply_changed(struct power_supply *psy);
 422 extern int power_supply_am_i_supplied(struct power_supply *psy);
 423 extern int power_supply_set_input_current_limit_from_supplier(
 424                                          struct power_supply *psy);
 425 extern int power_supply_set_battery_charged(struct power_supply *psy);
 426
 427 #ifdef CONFIG_POWER_SUPPLY
 428 extern int power_supply_is_system_supplied(void);
 429 #else
 430 static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
 431 #endif
 432
 433 extern int power_supply_get_property(struct power_supply *psy,
 434                             enum power_supply_property psp,
 435                             union power_supply_propval *val);
 436 #if IS_ENABLED(CONFIG_POWER_SUPPLY)
 437 extern int power_supply_set_property(struct power_supply *psy,
 438                             enum power_supply_property psp,
 439                             const union power_supply_propval *val);
 440 #else
 441 static inline int power_supply_set_property(struct power_supply *psy,
 442                             enum power_supply_property psp,
 443                             const union power_supply_propval *val)
 444 { return 0; }
 445 #endif
 446 extern int power_supply_property_is_writeable(struct power_supply *psy,
 447                                         enum power_supply_property psp);
 448 extern void power_supply_external_power_changed(struct power_supply *psy);
 449
 450 extern struct power_supply *__must_check
 451 power_supply_register(struct device *parent,
 452                                  const struct power_supply_desc *desc,
 453                                  const struct power_supply_config *cfg);
 454 extern struct power_supply *__must_check
 455 power_supply_register_no_ws(struct device *parent,
 456                                  const struct power_supply_desc *desc,
 457                                  const struct power_supply_config *cfg);
 458 extern struct power_supply *__must_check
 459 devm_power_supply_register(struct device *parent,
 460                                  const struct power_supply_desc *desc,
 461                                  const struct power_supply_config *cfg);
 462 extern struct power_supply *__must_check
 463 devm_power_supply_register_no_ws(struct device *parent,
 464                                  const struct power_supply_desc *desc,
 465                                  const struct power_supply_config *cfg);
 466 extern void power_supply_unregister(struct power_supply *psy);
 467 extern int power_supply_powers(struct power_supply *psy, struct device *dev);
 468
 469 #define to_power_supply(device) container_of(device, struct power_supply, dev)
 470
 471 extern void *power_supply_get_drvdata(struct power_supply *psy);
 472 /* For APM emulation, think legacy userspace. */
 473 extern struct class *power_supply_class;
 474
 475 static inline bool power_supply_is_amp_property(enum power_supply_property psp)
 476 {
 477         switch (psp) {
 478         case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
 479         case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
 480         case POWER_SUPPLY_PROP_CHARGE_FULL:
 481         case POWER_SUPPLY_PROP_CHARGE_EMPTY:
 482         case POWER_SUPPLY_PROP_CHARGE_NOW:
 483         case POWER_SUPPLY_PROP_CHARGE_AVG:
 484         case POWER_SUPPLY_PROP_CHARGE_COUNTER:
 485         case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
 486         case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
 487         case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
 488         case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
 489         case POWER_SUPPLY_PROP_CURRENT_MAX:
 490         case POWER_SUPPLY_PROP_CURRENT_NOW:
 491         case POWER_SUPPLY_PROP_CURRENT_AVG:
 492         case POWER_SUPPLY_PROP_CURRENT_BOOT:
 493                 return true;
 494         default:
 495                 break;
 496         }
 497
 498         return false;
 499 }
 500
 501 static inline bool power_supply_is_watt_property(enum power_supply_property psp)
 502 {
 503         switch (psp) {
 504         case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
 505         case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
 506         case POWER_SUPPLY_PROP_ENERGY_FULL:
 507         case POWER_SUPPLY_PROP_ENERGY_EMPTY:
 508         case POWER_SUPPLY_PROP_ENERGY_NOW:
 509         case POWER_SUPPLY_PROP_ENERGY_AVG:
 510         case POWER_SUPPLY_PROP_VOLTAGE_MAX:
 511         case POWER_SUPPLY_PROP_VOLTAGE_MIN:
 512         case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
 513         case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
 514         case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 515         case POWER_SUPPLY_PROP_VOLTAGE_AVG:
 516         case POWER_SUPPLY_PROP_VOLTAGE_OCV:
 517         case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
 518         case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
 519         case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
 520         case POWER_SUPPLY_PROP_POWER_NOW:
 521                 return true;
 522         default:
 523                 break;
 524         }
 525
 526         return false;
 527 }
 528
 529 #ifdef CONFIG_POWER_SUPPLY_HWMON
 530 int power_supply_add_hwmon_sysfs(struct power_supply *psy);
 531 void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
 532 #else
 533 static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
 534 {
 535         return 0;
 536 }
 537
 538 static inline
 539 void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
 540 #endif
 541
 542 #endif /* __LINUX_POWER_SUPPLY_H__ */