2 * TI BQ257000 charger driver
4 * Copyright (C) 2016 Rockchip Corporation
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #include <linux/power/bq25700-charge.h>
19 #include <linux/i2c.h>
20 #include <linux/interrupt.h>
21 #include <linux/irq.h>
22 #include <linux/mfd/core.h>
23 #include <linux/module.h>
24 #include <linux/regmap.h>
25 #include <linux/of_device.h>
26 #include <linux/delay.h>
27 #include <linux/usb/phy.h>
28 #include <linux/power/rk_usbbc.h>
29 #include <linux/extcon.h>
30 #include <linux/delay.h>
31 #include <linux/power_supply.h>
32 #include <linux/gpio.h>
33 #include <linux/of_gpio.h>
34 #include <linux/rk_keys.h>
36 static int dbg_enable;
37 module_param_named(dbg_level, dbg_enable, int, 0644);
39 #define DBG(args...) \
46 #define bq25700_info(fmt, args...) pr_info("bq25700: "fmt, ##args)
48 #define BQ25700_MANUFACTURER "Texas Instruments"
49 #define BQ25700_ID 0x59
51 #define DEFAULT_INPUTVOL ((5000 - 1280) * 1000)
52 #define MAX_INPUTVOLTAGE 24000000
53 #define MAX_INPUTCURRENT 6350000
54 #define MAX_CHARGEVOLTAGE 16800000
55 #define MAX_CHARGECURRETNT 8128000
56 #define MAX_OTGVOLTAGE 20800000
57 #define MAX_OTGCURRENT 6350000
60 EN_LWPWR, WDTWR_ADJ, IDPM_AUTO_DISABLE,
61 EN_OOA, PWM_FREQ, EN_LEARN, IADP_GAIN, IBAT_GAIN,
62 EN_LDO, EN_IDPM, CHRG_INHIBIT,/*reg12h*/
63 CHARGE_CURRENT,/*reg14h*/
64 MAX_CHARGE_VOLTAGE,/*reg15h*/
66 AC_STAT, ICO_DONE, IN_VINDPM, IN_IINDPM, IN_FCHRG, IN_PCHRG, IN_OTG,
67 F_ACOV, F_BATOC, F_ACOC, SYSOVP_STAT, F_LATCHOFF, F_OTG_OVP, F_OTG_OCP,
69 STAT_COMP, STAT_ICRIT, STAT_INOM, STAT_IDCHG, STAT_VSYS, STAT_BAT_REMOV,
70 STAT_ADP_REMOV,/*reg21h*/
71 INPUT_CURRENT_DPM,/*reg22h*/
72 OUTPUT_INPUT_VOL, OUTPUT_SYS_POWER,/*reg23h*/
73 OUTPUT_DSG_CUR, OUTPUT_CHG_CUR,/*reg24h*/
74 OUTPUT_INPUT_CUR, OUTPUT_CMPIN_VOL,/*reg25h*/
75 OUTPUT_SYS_VOL, OUTPUT_BAT_VOL,/*reg26h*/
77 EN_IBAT, EN_PROCHOT_LPWR, EN_PSYS, RSNS_RAC, RSNS_RSR,
78 PSYS_RATIO, CMP_REF, CMP_POL, CMP_DEG, FORCE_LATCHOFF,
79 EN_SHIP_DCHG, AUTO_WAKEUP_EN, /*reg30h*/
80 PKPWR_TOVLD_REG, EN_PKPWR_IDPM, EN_PKPWR_VSYS, PKPWER_OVLD_STAT,
81 PKPWR_RELAX_STAT, PKPWER_TMAX, EN_EXTILIM, EN_ICHG_IDCHG, Q2_OCP,
82 ACX_OCP, EN_ACOC, ACOC_VTH, EN_BATOC, BATCOC_VTH,/*reg31h*/
83 EN_HIZ, RESET_REG, RESET_VINDPM, EN_OTG, EN_ICO_MODE, BATFETOFF_HIZ,
84 PSYS_OTG_IDCHG,/*reg32h*/
85 ILIM2_VTH, ICRIT_DEG, VSYS_VTH, EN_PROCHOT_EXT, PROCHOT_WIDTH,
86 PROCHOT_CLEAR, INOM_DEG,/*reg33h*/
87 IDCHG_VTH, IDCHG_DEG, PROCHOT_PROFILE_COMP, PROCHOT_PROFILE_ICRIT,
88 PROCHOT_PROFILE_INOM, PROCHOT_PROFILE_IDCHG,
89 PROCHOT_PROFILE_VSYS, PROCHOT_PROFILE_BATPRES, PROCHOT_PROFILE_ACOK,
91 ADC_CONV, ADC_START, ADC_FULLSCALE, EN_ADC_CMPIN, EN_ADC_VBUS,
92 EN_ADC_PSYS, EN_ADC_IIN, EN_ADC_IDCHG, EN_ADC_ICHG, EN_ADC_VSYS,
93 EN_ADC_VBAT,/*reg35h*/
95 OTG_VOLTAGE,/*reg3bh*/
96 OTG_CURRENT,/*reg3ch*/
97 INPUT_VOLTAGE,/*reg3dh*/
98 MIN_SYS_VOTAGE,/*reg3eh*/
99 INPUT_CURRENT,/*reg3fh*/
101 MANUFACTURE_ID,/*regfeh*/
108 USB_TYPE_UNKNOWN_CHARGER,
109 USB_TYPE_NONE_CHARGER,
110 USB_TYPE_USB_CHARGER,
112 USB_TYPE_CDP_CHARGER,
114 DC_TYPE_NONE_CHARGER,
130 /* initial field values, converted to register values */
131 struct bq25700_init_data {
132 u32 ichg; /* charge current */
133 u32 max_chg_vol; /*max charge voltage*/
134 u32 input_voltage; /*input voltage*/
135 u32 input_current; /*input current*/
136 u32 input_current_sdp;
137 u32 input_current_dcp;
138 u32 input_current_cdp;
139 u32 sys_min_voltage; /*mininum system voltage*/
140 u32 otg_voltage; /*OTG voltage*/
141 u32 otg_current; /*OTG current*/
144 struct bq25700_state {
161 struct bq25700_device {
162 struct i2c_client *client;
164 struct power_supply *supply_charger;
165 char model_name[I2C_NAME_SIZE];
168 bool charger_health_valid;
169 bool battery_health_valid;
170 bool battery_status_valid;
172 struct workqueue_struct *usb_charger_wq;
173 struct workqueue_struct *dc_charger_wq;
174 struct workqueue_struct *finish_sig_wq;
175 struct delayed_work usb_work;
176 struct delayed_work pd_work;
177 struct delayed_work host_work;
178 struct delayed_work discnt_work;
179 struct delayed_work usb_work1;
180 struct delayed_work pd_work1;
181 struct delayed_work host_work1;
182 struct delayed_work discnt_work1;
183 struct delayed_work irq_work;
184 struct notifier_block cable_cg_nb;
185 struct notifier_block cable_pd_nb;
186 struct notifier_block cable_host_nb;
187 struct notifier_block cable_discnt_nb;
188 struct notifier_block cable_cg_nb1;
189 struct notifier_block cable_pd_nb1;
190 struct notifier_block cable_host_nb1;
191 struct notifier_block cable_discnt_nb1;
192 struct extcon_dev *cable_edev;
193 struct extcon_dev *cable_edev_1;
196 struct gpio_desc *typec0_enable_io;
197 struct gpio_desc *typec1_enable_io;
198 struct gpio_desc *typec0_discharge_io;
199 struct gpio_desc *typec1_discharge_io;
201 struct regmap *regmap;
202 struct regmap_field *rmap_fields[F_MAX_FIELDS];
204 struct bq25700_init_data init_data;
205 struct bq25700_state state;
209 static const struct reg_field bq25700_reg_fields[] = {
211 [EN_LWPWR] = REG_FIELD(0x12, 15, 15),
212 [WDTWR_ADJ] = REG_FIELD(0x12, 13, 14),
213 [IDPM_AUTO_DISABLE] = REG_FIELD(0x12, 12, 12),
214 [EN_OOA] = REG_FIELD(0x12, 10, 10),
215 [PWM_FREQ] = REG_FIELD(0x12, 9, 9),
216 [EN_LEARN] = REG_FIELD(0x12, 5, 5),
217 [IADP_GAIN] = REG_FIELD(0x12, 4, 4),
218 [IBAT_GAIN] = REG_FIELD(0x12, 3, 3),
219 [EN_LDO] = REG_FIELD(0x12, 2, 2),
220 [EN_IDPM] = REG_FIELD(0x12, 1, 1),
221 [CHRG_INHIBIT] = REG_FIELD(0x12, 0, 0),
223 [CHARGE_CURRENT] = REG_FIELD(0x14, 6, 12),
225 [MAX_CHARGE_VOLTAGE] = REG_FIELD(0x15, 4, 14),
227 [AC_STAT] = REG_FIELD(0x20, 15, 15),
228 [ICO_DONE] = REG_FIELD(0x20, 14, 14),
229 [IN_VINDPM] = REG_FIELD(0x20, 12, 12),
230 [IN_IINDPM] = REG_FIELD(0x20, 11, 11),
231 [IN_FCHRG] = REG_FIELD(0x20, 10, 10),
232 [IN_PCHRG] = REG_FIELD(0x20, 9, 9),
233 [IN_OTG] = REG_FIELD(0x20, 8, 8),
234 [F_ACOV] = REG_FIELD(0x20, 7, 7),
235 [F_BATOC] = REG_FIELD(0x20, 6, 6),
236 [F_ACOC] = REG_FIELD(0x20, 5, 5),
237 [SYSOVP_STAT] = REG_FIELD(0x20, 4, 4),
238 [F_LATCHOFF] = REG_FIELD(0x20, 2, 2),
239 [F_OTG_OVP] = REG_FIELD(0x20, 1, 1),
240 [F_OTG_OCP] = REG_FIELD(0x20, 0, 0),
242 [STAT_COMP] = REG_FIELD(0x21, 6, 6),
243 [STAT_ICRIT] = REG_FIELD(0x21, 5, 5),
244 [STAT_INOM] = REG_FIELD(0x21, 4, 4),
245 [STAT_IDCHG] = REG_FIELD(0x21, 3, 3),
246 [STAT_VSYS] = REG_FIELD(0x21, 2, 2),
247 [STAT_BAT_REMOV] = REG_FIELD(0x21, 1, 1),
248 [STAT_ADP_REMOV] = REG_FIELD(0x21, 0, 0),
250 [INPUT_CURRENT_DPM] = REG_FIELD(0x22, 8, 14),
252 [OUTPUT_INPUT_VOL] = REG_FIELD(0x23, 8, 15),
253 [OUTPUT_SYS_POWER] = REG_FIELD(0x23, 0, 7),
255 [OUTPUT_DSG_CUR] = REG_FIELD(0x24, 8, 14),
256 [OUTPUT_CHG_CUR] = REG_FIELD(0x24, 0, 6),
258 [OUTPUT_INPUT_CUR] = REG_FIELD(0x25, 8, 15),
259 [OUTPUT_CMPIN_VOL] = REG_FIELD(0x25, 0, 7),
261 [OUTPUT_SYS_VOL] = REG_FIELD(0x26, 8, 15),
262 [OUTPUT_BAT_VOL] = REG_FIELD(0x26, 0, 6),
265 [EN_IBAT] = REG_FIELD(0x30, 15, 15),
266 [EN_PROCHOT_LPWR] = REG_FIELD(0x30, 13, 14),
267 [EN_PSYS] = REG_FIELD(0x30, 12, 12),
268 [RSNS_RAC] = REG_FIELD(0x30, 11, 11),
269 [RSNS_RSR] = REG_FIELD(0x30, 10, 10),
270 [PSYS_RATIO] = REG_FIELD(0x30, 9, 9),
271 [CMP_REF] = REG_FIELD(0x30, 7, 7),
272 [CMP_POL] = REG_FIELD(0x30, 6, 6),
273 [CMP_DEG] = REG_FIELD(0x30, 4, 5),
274 [FORCE_LATCHOFF] = REG_FIELD(0x30, 3, 3),
275 [EN_SHIP_DCHG] = REG_FIELD(0x30, 1, 1),
276 [AUTO_WAKEUP_EN] = REG_FIELD(0x30, 0, 0),
278 [PKPWR_TOVLD_REG] = REG_FIELD(0x31, 14, 15),
279 [EN_PKPWR_IDPM] = REG_FIELD(0x31, 13, 13),
280 [EN_PKPWR_VSYS] = REG_FIELD(0x31, 12, 12),
281 [PKPWER_OVLD_STAT] = REG_FIELD(0x31, 11, 11),
282 [PKPWR_RELAX_STAT] = REG_FIELD(0x31, 10, 10),
283 [PKPWER_TMAX] = REG_FIELD(0x31, 8, 9),
284 [EN_EXTILIM] = REG_FIELD(0x31, 7, 7),
285 [EN_ICHG_IDCHG] = REG_FIELD(0x31, 6, 6),
286 [Q2_OCP] = REG_FIELD(0x31, 5, 5),
287 [ACX_OCP] = REG_FIELD(0x31, 4, 4),
288 [EN_ACOC] = REG_FIELD(0x31, 3, 3),
289 [ACOC_VTH] = REG_FIELD(0x31, 2, 2),
290 [EN_BATOC] = REG_FIELD(0x31, 1, 1),
291 [BATCOC_VTH] = REG_FIELD(0x31, 0, 0),
293 [EN_HIZ] = REG_FIELD(0x32, 15, 15),
294 [RESET_REG] = REG_FIELD(0x32, 14, 14),
295 [RESET_VINDPM] = REG_FIELD(0x32, 13, 13),
296 [EN_OTG] = REG_FIELD(0x32, 12, 12),
297 [EN_ICO_MODE] = REG_FIELD(0x32, 11, 11),
298 [BATFETOFF_HIZ] = REG_FIELD(0x32, 1, 1),
299 [PSYS_OTG_IDCHG] = REG_FIELD(0x32, 0, 0),
301 [ILIM2_VTH] = REG_FIELD(0x33, 11, 15),
302 [ICRIT_DEG] = REG_FIELD(0x33, 9, 10),
303 [VSYS_VTH] = REG_FIELD(0x33, 6, 7),
304 [EN_PROCHOT_EXT] = REG_FIELD(0x33, 5, 5),
305 [PROCHOT_WIDTH] = REG_FIELD(0x33, 3, 4),
306 [PROCHOT_CLEAR] = REG_FIELD(0x33, 2, 2),
307 [INOM_DEG] = REG_FIELD(0x33, 1, 1),
309 [IDCHG_VTH] = REG_FIELD(0x34, 10, 15),
310 [IDCHG_DEG] = REG_FIELD(0x34, 8, 9),
311 [PROCHOT_PROFILE_COMP] = REG_FIELD(0x34, 6, 6),
312 [PROCHOT_PROFILE_ICRIT] = REG_FIELD(0x34, 5, 5),
313 [PROCHOT_PROFILE_INOM] = REG_FIELD(0x34, 4, 4),
314 [PROCHOT_PROFILE_IDCHG] = REG_FIELD(0x34, 3, 3),
315 [PROCHOT_PROFILE_VSYS] = REG_FIELD(0x34, 2, 2),
316 [PROCHOT_PROFILE_BATPRES] = REG_FIELD(0x34, 1, 1),
317 [PROCHOT_PROFILE_ACOK] = REG_FIELD(0x34, 0, 0),
319 [ADC_CONV] = REG_FIELD(0x35, 15, 15),
320 [ADC_START] = REG_FIELD(0x35, 14, 14),
321 [ADC_FULLSCALE] = REG_FIELD(0x35, 13, 13),
322 [EN_ADC_CMPIN] = REG_FIELD(0x35, 7, 7),
323 [EN_ADC_VBUS] = REG_FIELD(0x35, 6, 6),
324 [EN_ADC_PSYS] = REG_FIELD(0x35, 5, 5),
325 [EN_ADC_IIN] = REG_FIELD(0x35, 4, 4),
326 [EN_ADC_IDCHG] = REG_FIELD(0x35, 3, 3),
327 [EN_ADC_ICHG] = REG_FIELD(0x35, 2, 2),
328 [EN_ADC_VSYS] = REG_FIELD(0x35, 1, 1),
329 [EN_ADC_VBAT] = REG_FIELD(0x35, 0, 0),
331 [OTG_VOLTAGE] = REG_FIELD(0x3B, 6, 13),
333 [OTG_CURRENT] = REG_FIELD(0x3C, 8, 14),
335 [INPUT_VOLTAGE] = REG_FIELD(0x3D, 6, 13),
337 [MIN_SYS_VOTAGE] = REG_FIELD(0x3E, 8, 13),
339 [INPUT_CURRENT] = REG_FIELD(0x3F, 8, 14),
342 [MANUFACTURE_ID] = REG_FIELD(0xFE, 0, 7),
344 [DEVICE_ID] = REG_FIELD(0xFF, 0, 7),
348 * Most of the val -> idx conversions can be computed, given the minimum,
349 * maximum and the step between values. For the rest of conversions, we use
352 enum bq25700_table_ids {
364 struct bq25700_range {
370 struct bq25700_lookup {
376 struct bq25700_range rt;
377 struct bq25700_lookup lt;
378 } bq25700_tables[] = {
380 [TBL_ICHG] = { .rt = {0, 8128000, 64000} },
382 [TBL_CHGMAX] = { .rt = {0, 19200000, 16000} },
383 /* uV max charge voltage*/
384 [TBL_INPUTVOL] = { .rt = {3200000, 19520000, 64000} },
385 /* uV input charge voltage*/
386 [TBL_INPUTCUR] = {.rt = {0, 6350000, 50000} },
388 [TBL_SYSVMIN] = { .rt = {1024000, 16182000, 256000} },
389 /* uV min system voltage*/
390 [TBL_OTGVOL] = {.rt = {4480000, 20800000, 64000} },
392 [TBL_OTGCUR] = {.rt = {0, 6350000, 50000} },
395 static const struct regmap_range bq25700_readonly_reg_ranges[] = {
396 regmap_reg_range(0x20, 0x26),
397 regmap_reg_range(0xFE, 0xFF),
400 static const struct regmap_access_table bq25700_writeable_regs = {
401 .no_ranges = bq25700_readonly_reg_ranges,
402 .n_no_ranges = ARRAY_SIZE(bq25700_readonly_reg_ranges),
405 static const struct regmap_range bq25700_volatile_reg_ranges[] = {
406 regmap_reg_range(0x12, 0x12),
407 regmap_reg_range(0x14, 0x15),
408 regmap_reg_range(0x20, 0x26),
409 regmap_reg_range(0x30, 0x35),
410 regmap_reg_range(0x3B, 0x3F),
411 regmap_reg_range(0xFE, 0xFF),
414 static const struct regmap_access_table bq25700_volatile_regs = {
415 .yes_ranges = bq25700_volatile_reg_ranges,
416 .n_yes_ranges = ARRAY_SIZE(bq25700_volatile_reg_ranges),
419 static const struct regmap_config bq25700_regmap_config = {
423 .max_register = 0xFF,
424 .cache_type = REGCACHE_RBTREE,
426 .wr_table = &bq25700_writeable_regs,
427 .volatile_table = &bq25700_volatile_regs,
428 .val_format_endian = REGMAP_ENDIAN_LITTLE,
431 static struct bq25700_device *bq25700_charger;
433 static int bq25700_field_read(struct bq25700_device *charger,
434 enum bq25700_fields field_id)
439 ret = regmap_field_read(charger->rmap_fields[field_id], &val);
446 static int bq25700_field_write(struct bq25700_device *charger,
447 enum bq25700_fields field_id, unsigned int val)
449 return regmap_field_write(charger->rmap_fields[field_id], val);
452 static int bq25700_get_chip_state(struct bq25700_device *charger,
453 struct bq25700_state *state)
458 enum bq25700_fields id;
461 {AC_STAT, &state->ac_stat},
462 {ICO_DONE, &state->ico_done},
463 {IN_VINDPM, &state->in_vindpm},
464 {IN_IINDPM, &state->in_iindpm},
465 {IN_FCHRG, &state->in_fchrg},
466 {IN_PCHRG, &state->in_pchrg},
467 {IN_OTG, &state->in_otg},
468 {F_ACOV, &state->fault_acov},
469 {F_BATOC, &state->fault_batoc},
470 {F_ACOC, &state->fault_acoc},
471 {SYSOVP_STAT, &state->sysovp_stat},
472 {F_LATCHOFF, &state->fault_latchoff},
473 {F_OTG_OVP, &state->fault_otg_ovp},
474 {F_OTG_OCP, &state->fault_otg_ocp},
477 for (i = 0; i < ARRAY_SIZE(state_fields); i++) {
478 ret = bq25700_field_read(charger, state_fields[i].id);
482 *state_fields[i].data = ret;
488 static int bq25700_dump_regs(struct bq25700_device *charger)
491 struct bq25700_state state;
494 ret = bq25700_field_write(charger, ADC_START, 1);
496 DBG("error: ADC_START\n");
500 DBG("\n==================================\n");
501 regmap_read(charger->regmap, 0x12, &val);
502 DBG("REG0x12 : 0x%x\n", val);
503 regmap_read(charger->regmap, 0x14, &val);
504 DBG("REG0x14 : 0x%x\n", val);
505 regmap_read(charger->regmap, 0x15, &val);
506 DBG("REG0x15 : 0x%x\n", val);
507 regmap_read(charger->regmap, 0x30, &val);
508 DBG("REG0x30 : 0x%x\n", val);
509 regmap_read(charger->regmap, 0x31, &val);
510 DBG("REG0x31 : 0x%x\n", val);
511 regmap_read(charger->regmap, 0x32, &val);
512 DBG("REG0x32 : 0x%x\n", val);
513 regmap_read(charger->regmap, 0x33, &val);
514 DBG("REG0x33 : 0x%x\n", val);
515 regmap_read(charger->regmap, 0x34, &val);
516 DBG("REG0x34 : 0x%x\n", val);
517 regmap_read(charger->regmap, 0x35, &val);
518 DBG("REG0x35 : 0x%x\n", val);
519 regmap_read(charger->regmap, 0x20, &val);
520 DBG("REG0x20 : 0x%x\n", val);
521 regmap_read(charger->regmap, 0x21, &val);
522 DBG("REG0x21 : 0x%x\n", val);
523 regmap_read(charger->regmap, 0x22, &val);
524 DBG("REG0x22 : 0x%x\n", val);
525 regmap_read(charger->regmap, 0x23, &val);
526 DBG("REG0x23 : 0x%x\n", val);
527 regmap_read(charger->regmap, 0x24, &val);
528 DBG("REG0x24 : 0x%x\n", val);
529 regmap_read(charger->regmap, 0x25, &val);
530 DBG("REG0x25 : 0x%x\n", val);
531 regmap_read(charger->regmap, 0x26, &val);
532 DBG("REG0x26 : 0x%x\n", val);
533 regmap_read(charger->regmap, 0x3b, &val);
534 DBG("REG0x3b : 0x%x\n", val);
535 regmap_read(charger->regmap, 0x3c, &val);
536 DBG("REG0x3c : 0x%x\n", val);
537 regmap_read(charger->regmap, 0x3d, &val);
538 DBG("REG0x3d : 0x%x\n", val);
539 regmap_read(charger->regmap, 0x3e, &val);
540 DBG("REG0x3e : 0x%x\n", val);
541 regmap_read(charger->regmap, 0x3f, &val);
542 DBG("REG0x3f : 0x%x\n", val);
543 regmap_read(charger->regmap, 0xfe, &val);
544 DBG("REG0xfe : 0x%x\n", val);
545 regmap_read(charger->regmap, 0xff, &val);
546 DBG("REG0xff : 0x%x\n", val);
548 DBG("battery charge current: %dmA\n",
549 bq25700_field_read(charger, OUTPUT_DSG_CUR) * 64);
550 DBG("battery discharge current: %dmA\n",
551 bq25700_field_read(charger, OUTPUT_CHG_CUR) * 256);
552 DBG("VSYS volatge: %dmV\n",
553 2880 + bq25700_field_read(charger, OUTPUT_SYS_VOL) * 64);
554 DBG("BAT volatge: %dmV\n",
555 2880 + bq25700_field_read(charger, OUTPUT_BAT_VOL) * 64);
557 DBG("SET CHARGE_CURRENT: %dmA\n",
558 bq25700_field_read(charger, CHARGE_CURRENT) * 64);
559 DBG("MAX_CHARGE_VOLTAGE: %dmV\n",
560 bq25700_field_read(charger, MAX_CHARGE_VOLTAGE) * 16);
561 DBG(" INPUT_VOLTAGE: %dmV\n",
562 3200 + bq25700_field_read(charger, INPUT_VOLTAGE) * 64);
563 DBG(" INPUT_CURRENT: %dmA\n",
564 bq25700_field_read(charger, INPUT_CURRENT) * 50);
565 DBG(" MIN_SYS_VOTAGE: %dmV\n",
566 1024 + bq25700_field_read(charger, MIN_SYS_VOTAGE) * 256);
567 bq25700_get_chip_state(charger, &state);
569 DBG("AC_STAT: %d\n", state.ac_stat);
570 DBG("ICO_DONE: %d\n", state.ico_done);
571 DBG("IN_VINDPM: %d\n", state.in_vindpm);
572 DBG("IN_IINDPM: %d\n", state.in_iindpm);
573 DBG("IN_FCHRG: %d\n", state.in_fchrg);
574 DBG("IN_PCHRG: %d\n", state.in_pchrg);
575 DBG("IN_OTG: %d\n", state.in_otg);
576 DBG("F_ACOV: %d\n", state.fault_acov);
577 DBG("F_BATOC: %d\n", state.fault_batoc);
578 DBG("F_ACOC: %d\n", state.fault_acoc);
579 DBG("SYSOVP_STAT: %d\n", state.sysovp_stat);
580 DBG("F_LATCHOFF: %d\n", state.fault_latchoff);
581 DBG("F_OTGOVP: %d\n", state.fault_otg_ovp);
582 DBG("F_OTGOCP: %d\n", state.fault_otg_ocp);
584 DBG("\n+++++++++++++++++++++++++++++++++++++++++++++++++\n");
588 ssize_t bq25700_charge_info_show(struct device *dev,
589 struct device_attribute *attr, char *buf)
591 struct bq25700_device *charger = dev_get_drvdata(dev);
593 bq25700_dump_regs(charger);
598 static struct device_attribute bq25700_charger_attr[] = {
599 __ATTR(charge_info, 0664, bq25700_charge_info_show, NULL),
602 static void bq25700_init_sysfs(struct bq25700_device *charger)
606 for (i = 0; i < ARRAY_SIZE(bq25700_charger_attr); i++) {
607 ret = sysfs_create_file(&charger->dev->kobj,
608 &bq25700_charger_attr[i].attr);
610 dev_err(charger->dev, "create charger node(%s) error\n",
611 bq25700_charger_attr[i].attr.name);
615 static u32 bq25700_find_idx(u32 value, enum bq25700_table_ids id)
619 const struct bq25700_range *rtbl = &bq25700_tables[id].rt;
621 rtbl_size = (rtbl->max - rtbl->min) / rtbl->step + 1;
624 idx < rtbl_size && (idx * rtbl->step + rtbl->min <= value);
631 void bq25700_charger_set_current(unsigned long event,
636 if (!bq25700_charger) {
637 pr_err("[%s,%d] bq25700_charger is null\n", __func__, __LINE__);
641 case CHARGER_CURRENT_EVENT:
642 idx = bq25700_find_idx(current_value, TBL_ICHG);
643 bq25700_field_write(bq25700_charger, CHARGE_CURRENT, idx);
646 case INPUT_CURRENT_EVENT:
647 idx = bq25700_find_idx(current_value, TBL_INPUTCUR);
648 bq25700_field_write(bq25700_charger, INPUT_CURRENT, idx);
656 static int bq25700_fw_read_u32_props(struct bq25700_device *charger)
661 struct bq25700_init_data *init = &charger->init_data;
665 enum bq25700_table_ids tbl_id;
666 u32 *conv_data; /* holds converted value from given property */
668 /* required properties */
669 {"ti,charge-current", false, TBL_ICHG,
671 {"ti,max-charge-voltage", false, TBL_CHGMAX,
673 {"ti,input-current-sdp", false, TBL_INPUTCUR,
674 &init->input_current_sdp},
675 {"ti,input-current-dcp", false, TBL_INPUTCUR,
676 &init->input_current_dcp},
677 {"ti,input-current-cdp", false, TBL_INPUTCUR,
678 &init->input_current_cdp},
679 {"ti,minimum-sys-voltage", false, TBL_SYSVMIN,
680 &init->sys_min_voltage},
681 {"ti,otg-voltage", false, TBL_OTGVOL,
683 {"ti,otg-current", false, TBL_OTGCUR,
687 /* initialize data for optional properties */
688 for (i = 0; i < ARRAY_SIZE(props); i++) {
689 ret = device_property_read_u32(charger->dev, props[i].name,
692 if (props[i].optional)
698 if ((props[i].tbl_id == TBL_ICHG) &&
699 (property > MAX_CHARGECURRETNT)) {
700 dev_err(charger->dev, "ti,charge-current is error\n");
703 if ((props[i].tbl_id == TBL_CHGMAX) &&
704 (property > MAX_CHARGEVOLTAGE)) {
705 dev_err(charger->dev, "ti,max-charge-voltage is error\n");
708 if ((props[i].tbl_id == TBL_INPUTCUR) &&
709 (property > MAX_INPUTCURRENT)) {
710 dev_err(charger->dev, "ti,input-current is error\n");
713 if ((props[i].tbl_id == TBL_OTGVOL) &&
714 (property > MAX_OTGVOLTAGE)) {
715 dev_err(charger->dev, "ti,ti,otg-voltage is error\n");
718 if ((props[i].tbl_id == TBL_OTGVOL) &&
719 (property > MAX_OTGCURRENT)) {
720 dev_err(charger->dev, "ti,otg-current is error\n");
724 *props[i].conv_data = bq25700_find_idx(property,
726 DBG("%s, val: %d, tbl_id =%d\n", props[i].name, property,
727 *props[i].conv_data);
733 static int bq25700_chip_reset(struct bq25700_device *charger)
736 int rst_check_counter = 10;
738 ret = bq25700_field_write(charger, RESET_REG, 1);
743 ret = bq25700_field_read(charger, RESET_REG);
748 } while (ret == 1 && --rst_check_counter);
750 if (!rst_check_counter)
756 static int bq25700_hw_init(struct bq25700_device *charger)
760 struct bq25700_state state;
763 enum bq25700_fields id;
766 {CHARGE_CURRENT, charger->init_data.ichg},
767 {MAX_CHARGE_VOLTAGE, charger->init_data.max_chg_vol},
768 {INPUT_CURRENT, charger->init_data.input_current},
769 {MIN_SYS_VOTAGE, charger->init_data.sys_min_voltage},
770 {OTG_VOLTAGE, charger->init_data.otg_voltage},
771 {OTG_CURRENT, charger->init_data.otg_current},
774 ret = bq25700_chip_reset(charger);
778 /* disable watchdog */
779 ret = bq25700_field_write(charger, WDTWR_ADJ, 0);
783 /* initialize currents/voltages and other parameters */
784 for (i = 0; i < ARRAY_SIZE(init_data); i++) {
785 ret = bq25700_field_write(charger, init_data[i].id,
791 DBG(" CHARGE_CURRENT: %dmA\n",
792 bq25700_field_read(charger, CHARGE_CURRENT) * 64);
793 DBG("MAX_CHARGE_VOLTAGE: %dmV\n",
794 bq25700_field_read(charger, MAX_CHARGE_VOLTAGE) * 16);
795 DBG(" INPUT_VOLTAGE: %dmV\n",
796 3200 + bq25700_field_read(charger, INPUT_VOLTAGE) * 64);
797 DBG(" INPUT_CURRENT: %dmA\n",
798 bq25700_field_read(charger, INPUT_CURRENT) * 50);
799 DBG(" MIN_SYS_VOTAGE: %dmV\n",
800 1024 + bq25700_field_read(charger, MIN_SYS_VOTAGE) * 256);
802 /* Configure ADC for continuous conversions. This does not enable it. */
804 ret = bq25700_field_write(charger, EN_LWPWR, 0);
806 DBG("error: EN_LWPWR\n");
810 ret = bq25700_field_write(charger, ADC_CONV, 1);
812 DBG("error: ADC_CONV\n");
816 ret = bq25700_field_write(charger, ADC_START, 1);
818 DBG("error: ADC_START\n");
822 ret = bq25700_field_write(charger, ADC_FULLSCALE, 1);
824 DBG("error: ADC_FULLSCALE\n");
828 ret = bq25700_field_write(charger, EN_ADC_CMPIN, 1);
830 DBG("error: EN_ADC_CMPIN\n");
834 ret = bq25700_field_write(charger, EN_ADC_VBUS, 1);
836 DBG("error: EN_ADC_VBUS\n");
840 ret = bq25700_field_write(charger, EN_ADC_PSYS, 1);
842 DBG("error: EN_ADC_PSYS\n");
846 ret = bq25700_field_write(charger, EN_ADC_IIN, 1);
848 DBG("error: EN_ADC_IIN\n");
852 ret = bq25700_field_write(charger, EN_ADC_IDCHG, 1);
854 DBG("error: EN_ADC_IDCHG\n");
858 ret = bq25700_field_write(charger, EN_ADC_ICHG, 1);
860 DBG("error: EN_ADC_ICHG\n");
864 ret = bq25700_field_write(charger, EN_ADC_VSYS, 1);
866 DBG("error: EN_ADC_VSYS\n");
870 ret = bq25700_field_write(charger, EN_ADC_VBAT, 1);
872 DBG("error: EN_ADC_VBAT\n");
876 bq25700_get_chip_state(charger, &state);
877 charger->state = state;
882 static int bq25700_fw_probe(struct bq25700_device *charger)
886 ret = bq25700_fw_read_u32_props(charger);
893 static void bq25700_enable_charger(struct bq25700_device *charger,
896 bq25700_field_write(charger, INPUT_CURRENT, input_current);
897 bq25700_field_write(charger, CHARGE_CURRENT, charger->init_data.ichg);
900 static enum power_supply_property bq25700_power_supply_props[] = {
901 POWER_SUPPLY_PROP_MANUFACTURER,
902 POWER_SUPPLY_PROP_STATUS,
903 POWER_SUPPLY_PROP_ONLINE,
904 POWER_SUPPLY_PROP_HEALTH,
905 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
906 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
907 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
908 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
909 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
910 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
913 static int bq25700_power_supply_get_property(struct power_supply *psy,
914 enum power_supply_property psp,
915 union power_supply_propval *val)
918 struct bq25700_device *bq = power_supply_get_drvdata(psy);
919 struct bq25700_state state;
924 case POWER_SUPPLY_PROP_STATUS:
926 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
927 else if (state.in_fchrg == 1 ||
929 val->intval = POWER_SUPPLY_STATUS_CHARGING;
931 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
934 case POWER_SUPPLY_PROP_MANUFACTURER:
935 val->strval = BQ25700_MANUFACTURER;
938 case POWER_SUPPLY_PROP_ONLINE:
939 val->intval = state.ac_stat;
942 case POWER_SUPPLY_PROP_HEALTH:
943 if (!state.fault_acoc &&
944 !state.fault_acov && !state.fault_batoc)
945 val->intval = POWER_SUPPLY_HEALTH_GOOD;
946 else if (state.fault_batoc)
947 val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
950 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
951 /* read measured value */
952 ret = bq25700_field_read(bq, OUTPUT_CHG_CUR);
956 /* converted_val = ADC_val * 64mA */
957 val->intval = ret * 64000;
960 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
961 val->intval = bq25700_tables[TBL_ICHG].rt.max;
964 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
965 if (!state.ac_stat) {
970 /* read measured value */
971 ret = bq25700_field_read(bq, OUTPUT_BAT_VOL);
975 /* converted_val = 2.88V + ADC_val * 64mV */
976 val->intval = 2880000 + ret * 64000;
979 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
980 val->intval = bq25700_tables[TBL_CHGMAX].rt.max;
983 case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
984 val->intval = bq25700_tables[TBL_INPUTVOL].rt.max;
987 case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
988 val->intval = bq25700_tables[TBL_INPUTCUR].rt.max;
998 static char *bq25700_charger_supplied_to[] = {
1002 static const struct power_supply_desc bq25700_power_supply_desc = {
1003 .name = "bq25700-charger",
1004 .type = POWER_SUPPLY_TYPE_USB,
1005 .properties = bq25700_power_supply_props,
1006 .num_properties = ARRAY_SIZE(bq25700_power_supply_props),
1007 .get_property = bq25700_power_supply_get_property,
1010 static int bq25700_power_supply_init(struct bq25700_device *charger)
1012 struct power_supply_config psy_cfg = { .drv_data = charger, };
1014 psy_cfg.supplied_to = bq25700_charger_supplied_to;
1015 psy_cfg.num_supplicants = ARRAY_SIZE(bq25700_charger_supplied_to);
1017 charger->supply_charger =
1018 power_supply_register(charger->dev,
1019 &bq25700_power_supply_desc,
1022 return PTR_ERR_OR_ZERO(charger->supply_charger);
1025 static irqreturn_t bq25700_irq_handler_thread(int irq, void *private)
1027 struct bq25700_device *charger = private;
1030 if (bq25700_field_read(charger, AC_STAT)) {
1031 irq_flag = IRQF_TRIGGER_LOW;
1033 irq_flag = IRQF_TRIGGER_HIGH;
1034 bq25700_field_write(charger, INPUT_CURRENT,
1035 charger->init_data.input_current_sdp);
1037 irq_set_irq_type(irq, irq_flag | IRQF_ONESHOT);
1038 rk_send_wakeup_key();
1043 static void bq25700_enable_typec0(struct bq25700_device *charger)
1045 if (!IS_ERR_OR_NULL(charger->typec0_enable_io))
1046 gpiod_direction_output(charger->typec0_enable_io, 1);
1047 if (!IS_ERR_OR_NULL(charger->typec1_enable_io))
1048 gpiod_direction_output(charger->typec1_enable_io, 0);
1051 static void bq25700_enable_typec1(struct bq25700_device *charger)
1053 if (!IS_ERR_OR_NULL(charger->typec0_enable_io))
1054 gpiod_direction_output(charger->typec0_enable_io, 0);
1055 if (!IS_ERR_OR_NULL(charger->typec1_enable_io))
1056 gpiod_direction_output(charger->typec1_enable_io, 1);
1059 static void bq25700_disable_charge(struct bq25700_device *charger)
1061 if (!IS_ERR_OR_NULL(charger->typec0_enable_io))
1062 gpiod_direction_output(charger->typec0_enable_io, 0);
1063 if (!IS_ERR_OR_NULL(charger->typec1_enable_io))
1064 gpiod_direction_output(charger->typec1_enable_io, 0);
1067 static void bq25700_typec0_discharge(struct bq25700_device *charger)
1069 if (!IS_ERR_OR_NULL(charger->typec0_discharge_io))
1070 gpiod_direction_output(charger->typec0_discharge_io, 1);
1072 if (!IS_ERR_OR_NULL(charger->typec0_discharge_io))
1073 gpiod_direction_output(charger->typec0_discharge_io, 0);
1076 static void bq25700_typec1_discharge(struct bq25700_device *charger)
1078 if (!IS_ERR_OR_NULL(charger->typec1_discharge_io))
1079 gpiod_direction_output(charger->typec1_discharge_io, 1);
1081 if (!IS_ERR_OR_NULL(charger->typec1_discharge_io))
1082 gpiod_direction_output(charger->typec1_discharge_io, 0);
1085 static void bq25700_pd_connect(struct bq25700_device *charger,
1086 struct extcon_dev *edev,
1087 enum tpyec_port_t port)
1089 union extcon_property_value prop_val;
1090 struct bq25700_state state;
1093 int vol_idx, cur_idx;
1096 if (charger->typec0_status == USB_STATUS_PD ||
1097 charger->typec1_status == USB_STATUS_PD)
1100 if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_FAST) > 0) {
1101 ret = extcon_get_property(edev, EXTCON_CHG_USB_FAST,
1102 EXTCON_PROP_USB_TYPEC_POLARITY,
1104 DBG("usb pd charge...\n");
1105 vol = prop_val.intval & 0xffff;
1106 cur = prop_val.intval >> 15;
1108 if (port == USB_TYPEC_0) {
1109 charger->typec0_status = USB_STATUS_PD;
1110 bq25700_enable_typec0(charger);
1112 charger->typec1_status = USB_STATUS_PD;
1113 bq25700_enable_typec1(charger);
1117 while (!bq25700_field_read(charger, AC_STAT) && i < 5) {
1121 vol_idx = bq25700_find_idx((vol - 1280) * 1000,
1123 cur_idx = bq25700_find_idx(cur * 1000, TBL_INPUTCUR);
1124 bq25700_field_write(charger, INPUT_VOLTAGE, vol_idx);
1125 bq25700_field_write(charger, INPUT_CURRENT, cur_idx);
1126 bq25700_field_write(charger, CHARGE_CURRENT,
1127 charger->init_data.ichg);
1130 bq25700_get_chip_state(charger, &state);
1131 charger->state = state;
1132 power_supply_changed(charger->supply_charger);
1136 static void bq25700_pd_evt_worker(struct work_struct *work)
1138 struct bq25700_device *charger = container_of(work,
1139 struct bq25700_device, pd_work.work);
1140 struct extcon_dev *edev = charger->cable_edev;
1142 bq25700_pd_connect(charger, edev, USB_TYPEC_0);
1145 static void bq25700_pd_evt_worker1(struct work_struct *work)
1147 struct bq25700_device *charger = container_of(work,
1148 struct bq25700_device, pd_work1.work);
1149 struct extcon_dev *edev = charger->cable_edev_1;
1151 bq25700_pd_connect(charger, edev, USB_TYPEC_1);
1154 static int bq25700_pd_evt_notifier(struct notifier_block *nb,
1155 unsigned long event,
1158 struct bq25700_device *charger =
1159 container_of(nb, struct bq25700_device, cable_pd_nb);
1161 queue_delayed_work(charger->usb_charger_wq, &charger->pd_work,
1162 msecs_to_jiffies(10));
1167 static int bq25700_pd_evt_notifier1(struct notifier_block *nb,
1168 unsigned long event,
1171 struct bq25700_device *charger =
1172 container_of(nb, struct bq25700_device, cable_pd_nb1);
1174 queue_delayed_work(charger->usb_charger_wq, &charger->pd_work1,
1175 msecs_to_jiffies(10));
1180 static void bq25700_charger_evt_handel(struct bq25700_device *charger,
1181 struct extcon_dev *edev,
1182 enum tpyec_port_t port)
1184 struct bq25700_state state;
1185 enum charger_t charger_state = USB_TYPE_UNKNOWN_CHARGER;
1187 if (charger->typec0_status == USB_STATUS_PD ||
1188 charger->typec1_status == USB_STATUS_PD)
1191 /* Determine cable/charger type */
1192 if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_SDP) > 0) {
1193 charger_state = USB_TYPE_USB_CHARGER;
1195 bq25700_enable_charger(charger,
1196 charger->init_data.input_current_sdp);
1197 DBG("USB_TYPE_USB_CHARGER\n");
1198 } else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_DCP) > 0) {
1199 charger_state = USB_TYPE_AC_CHARGER;
1200 bq25700_enable_charger(charger,
1201 charger->init_data.input_current_dcp);
1202 DBG("USB_TYPE_AC_CHARGER\n");
1203 } else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_CDP) > 0) {
1204 charger_state = USB_TYPE_CDP_CHARGER;
1205 bq25700_enable_charger(charger,
1206 charger->init_data.input_current_cdp);
1207 DBG("USB_TYPE_CDP_CHARGER\n");
1209 if (port == USB_TYPEC_0) {
1210 if (charger_state == USB_TYPE_USB_CHARGER)
1211 charger->typec0_status = USB_STATUS_USB;
1213 charger->typec0_status = USB_STATUS_AC;
1214 bq25700_enable_typec0(charger);
1216 if (charger_state == USB_TYPE_USB_CHARGER)
1217 charger->typec1_status = USB_STATUS_USB;
1219 charger->typec1_status = USB_STATUS_AC;
1220 bq25700_enable_typec1(charger);
1223 bq25700_get_chip_state(charger, &state);
1224 charger->state = state;
1225 power_supply_changed(charger->supply_charger);
1228 static void bq25700_charger_evt_worker(struct work_struct *work)
1230 struct bq25700_device *charger = container_of(work,
1231 struct bq25700_device, usb_work.work);
1232 struct extcon_dev *edev = charger->cable_edev;
1234 bq25700_charger_evt_handel(charger, edev, USB_TYPEC_0);
1237 static void bq25700_charger_evt_worker1(struct work_struct *work)
1239 struct bq25700_device *charger = container_of(work,
1240 struct bq25700_device, usb_work1.work);
1241 struct extcon_dev *edev = charger->cable_edev_1;
1243 bq25700_charger_evt_handel(charger, edev, USB_TYPEC_1);
1246 static int bq25700_charger_evt_notifier(struct notifier_block *nb,
1247 unsigned long event,
1250 struct bq25700_device *charger =
1251 container_of(nb, struct bq25700_device, cable_cg_nb);
1253 queue_delayed_work(charger->usb_charger_wq, &charger->usb_work,
1254 msecs_to_jiffies(10));
1259 static int bq25700_charger_evt_notifier1(struct notifier_block *nb,
1260 unsigned long event,
1263 struct bq25700_device *charger =
1264 container_of(nb, struct bq25700_device, cable_cg_nb1);
1266 queue_delayed_work(charger->usb_charger_wq, &charger->usb_work1,
1267 msecs_to_jiffies(10));
1272 static void bq25700_host_evt_worker(struct work_struct *work)
1274 struct bq25700_device *charger =
1275 container_of(work, struct bq25700_device, host_work.work);
1276 struct extcon_dev *edev = charger->cable_edev;
1278 /* Determine cable/charger type */
1279 if (extcon_get_cable_state_(edev, EXTCON_USB_VBUS_EN) > 0) {
1280 bq25700_field_write(charger, EN_OTG, 1);
1281 DBG("OTG enable\n");
1282 } else if (extcon_get_cable_state_(edev, EXTCON_USB_VBUS_EN) == 0) {
1283 bq25700_field_write(charger, EN_OTG, 0);
1284 DBG("OTG disable\n");
1288 static void bq25700_host_evt_worker1(struct work_struct *work)
1290 struct bq25700_device *charger =
1291 container_of(work, struct bq25700_device, host_work1.work);
1292 struct extcon_dev *edev = charger->cable_edev_1;
1294 /* Determine cable/charger type */
1295 if (extcon_get_cable_state_(edev, EXTCON_USB_VBUS_EN) > 0) {
1296 bq25700_field_write(charger, EN_OTG, 1);
1297 DBG("OTG enable\n");
1298 } else if (extcon_get_cable_state_(edev, EXTCON_USB_VBUS_EN) == 0) {
1299 bq25700_field_write(charger, EN_OTG, 0);
1300 DBG("OTG disable\n");
1304 static int bq25700_host_evt_notifier(struct notifier_block *nb,
1305 unsigned long event, void *ptr)
1307 struct bq25700_device *charger =
1308 container_of(nb, struct bq25700_device, cable_host_nb);
1310 queue_delayed_work(charger->usb_charger_wq, &charger->host_work,
1311 msecs_to_jiffies(10));
1316 static int bq25700_host_evt_notifier1(struct notifier_block *nb,
1317 unsigned long event, void *ptr)
1319 struct bq25700_device *charger =
1320 container_of(nb, struct bq25700_device, cable_host_nb1);
1322 queue_delayed_work(charger->usb_charger_wq, &charger->host_work1,
1323 msecs_to_jiffies(10));
1328 static void bq25700_discnt(struct bq25700_device *charger,
1329 enum tpyec_port_t port)
1332 struct bq25700_state state;
1334 if (bq25700_field_read(charger, AC_STAT) == 0) {
1335 bq25700_disable_charge(charger);
1336 if (port == USB_TYPEC_0) {
1337 bq25700_typec0_discharge(charger);
1338 charger->typec0_status = USB_STATUS_NONE;
1340 bq25700_typec1_discharge(charger);
1341 charger->typec1_status = USB_STATUS_NONE;
1344 vol_idx = bq25700_find_idx(DEFAULT_INPUTVOL, TBL_INPUTVOL);
1345 bq25700_field_write(charger, INPUT_VOLTAGE, vol_idx);
1346 bq25700_field_write(charger, INPUT_CURRENT,
1347 charger->init_data.input_current_sdp);
1348 bq25700_get_chip_state(charger, &state);
1349 charger->state = state;
1350 power_supply_changed(charger->supply_charger);
1354 static void bq25700_discnt_evt_worker(struct work_struct *work)
1356 struct bq25700_device *charger = container_of(work,
1357 struct bq25700_device,
1360 bq25700_discnt(charger, USB_TYPEC_0);
1363 static void bq25700_discnt_evt_worker1(struct work_struct *work)
1365 struct bq25700_device *charger = container_of(work,
1366 struct bq25700_device,
1368 bq25700_discnt(charger, USB_TYPEC_1);
1371 static int bq25700_discnt_evt_notfier(struct notifier_block *nb,
1372 unsigned long event,
1375 struct bq25700_device *charger =
1376 container_of(nb, struct bq25700_device, cable_discnt_nb);
1378 queue_delayed_work(charger->usb_charger_wq,
1379 &charger->discnt_work,
1380 msecs_to_jiffies(0));
1385 static int bq25700_discnt_evt_notfier1(struct notifier_block *nb,
1386 unsigned long event,
1389 struct bq25700_device *charger =
1390 container_of(nb, struct bq25700_device, cable_discnt_nb1);
1392 queue_delayed_work(charger->usb_charger_wq,
1393 &charger->discnt_work1,
1394 msecs_to_jiffies(0));
1399 static int bq25700_register_cg_extcon(struct bq25700_device *charger,
1400 struct extcon_dev *edev,
1401 struct notifier_block *able_cg_nb)
1405 ret = extcon_register_notifier(edev,
1409 dev_err(charger->dev, "failed to register notifier for SDP\n");
1413 ret = extcon_register_notifier(edev,
1417 dev_err(charger->dev, "failed to register notifier for DCP\n");
1421 ret = extcon_register_notifier(edev,
1425 dev_err(charger->dev, "failed to register notifier for CDP\n");
1432 static int bq25700_register_cg_nb(struct bq25700_device *charger)
1434 if (charger->cable_edev) {
1435 /* Register chargers */
1436 INIT_DELAYED_WORK(&charger->usb_work,
1437 bq25700_charger_evt_worker);
1438 charger->cable_cg_nb.notifier_call =
1439 bq25700_charger_evt_notifier;
1440 bq25700_register_cg_extcon(charger, charger->cable_edev,
1441 &charger->cable_cg_nb);
1444 if (charger->cable_edev_1) {
1445 INIT_DELAYED_WORK(&charger->usb_work1,
1446 bq25700_charger_evt_worker1);
1447 charger->cable_cg_nb1.notifier_call =
1448 bq25700_charger_evt_notifier1;
1449 bq25700_register_cg_extcon(charger, charger->cable_edev_1,
1450 &charger->cable_cg_nb1);
1456 static int bq25700_register_discnt_nb(struct bq25700_device *charger)
1460 /* Register discnt usb */
1461 if (charger->cable_edev) {
1462 INIT_DELAYED_WORK(&charger->discnt_work,
1463 bq25700_discnt_evt_worker);
1464 charger->cable_discnt_nb.notifier_call =
1465 bq25700_discnt_evt_notfier;
1466 ret = extcon_register_notifier(charger->cable_edev,
1468 &charger->cable_discnt_nb);
1470 dev_err(charger->dev,
1471 "failed to register notifier for HOST\n");
1476 if (charger->cable_edev_1) {
1477 INIT_DELAYED_WORK(&charger->discnt_work1,
1478 bq25700_discnt_evt_worker1);
1479 charger->cable_discnt_nb1.notifier_call =
1480 bq25700_discnt_evt_notfier1;
1481 ret = extcon_register_notifier(charger->cable_edev_1,
1483 &charger->cable_discnt_nb1);
1485 dev_err(charger->dev,
1486 "failed to register notifier for HOST\n");
1494 static int bq25700_register_pd_nb(struct bq25700_device *charger)
1496 if (charger->cable_edev) {
1497 INIT_DELAYED_WORK(&charger->pd_work, bq25700_pd_evt_worker);
1498 charger->cable_pd_nb.notifier_call = bq25700_pd_evt_notifier;
1499 extcon_register_notifier(charger->cable_edev,
1500 EXTCON_CHG_USB_FAST,
1501 &charger->cable_pd_nb);
1504 if (charger->cable_edev_1) {
1505 INIT_DELAYED_WORK(&charger->pd_work1, bq25700_pd_evt_worker1);
1506 charger->cable_pd_nb1.notifier_call = bq25700_pd_evt_notifier1;
1507 extcon_register_notifier(charger->cable_edev_1,
1508 EXTCON_CHG_USB_FAST,
1509 &charger->cable_pd_nb1);
1515 static int bq25700_register_host_nb(struct bq25700_device *charger)
1520 if (charger->cable_edev) {
1521 INIT_DELAYED_WORK(&charger->host_work, bq25700_host_evt_worker);
1522 charger->cable_host_nb.notifier_call =
1523 bq25700_host_evt_notifier;
1524 ret = extcon_register_notifier(charger->cable_edev,
1526 &charger->cable_host_nb);
1528 dev_err(charger->dev,
1529 "failed to register notifier for HOST\n");
1534 if (charger->cable_edev_1) {
1535 INIT_DELAYED_WORK(&charger->host_work1,
1536 bq25700_host_evt_worker1);
1537 charger->cable_host_nb1.notifier_call =
1538 bq25700_host_evt_notifier1;
1539 ret = extcon_register_notifier(charger->cable_edev_1,
1541 &charger->cable_host_nb1);
1543 dev_err(charger->dev,
1544 "failed to register notifier for HOST\n");
1552 static long bq25700_init_usb(struct bq25700_device *charger)
1554 struct extcon_dev *edev, *edev1;
1555 struct device *dev = charger->dev;
1557 charger->usb_charger_wq = alloc_ordered_workqueue("%s",
1562 edev = extcon_get_edev_by_phandle(dev, 0);
1564 if (PTR_ERR(edev) != -EPROBE_DEFER)
1565 dev_err(dev, "Invalid or missing extcon\n");
1566 charger->cable_edev = NULL;
1568 charger->cable_edev = edev;
1571 edev1 = extcon_get_edev_by_phandle(dev, 1);
1572 if (IS_ERR(edev1)) {
1573 if (PTR_ERR(edev1) != -EPROBE_DEFER)
1574 dev_err(dev, "Invalid or missing extcon\n");
1575 charger->cable_edev_1 = NULL;
1577 charger->cable_edev_1 = edev1;
1579 if (!charger->pd_charge_only)
1580 bq25700_register_cg_nb(charger);
1581 bq25700_register_host_nb(charger);
1582 bq25700_register_discnt_nb(charger);
1583 bq25700_register_pd_nb(charger);
1585 if (charger->cable_edev) {
1586 schedule_delayed_work(&charger->host_work, 0);
1587 schedule_delayed_work(&charger->pd_work, 0);
1588 if (!charger->pd_charge_only)
1589 schedule_delayed_work(&charger->usb_work, 0);
1591 if (charger->cable_edev_1) {
1592 schedule_delayed_work(&charger->host_work1, 0);
1593 schedule_delayed_work(&charger->pd_work1, 0);
1594 if (!charger->pd_charge_only)
1595 schedule_delayed_work(&charger->usb_work1, 0);
1601 static int bq25700_parse_dt(struct bq25700_device *charger)
1604 struct device_node *np = charger->dev->of_node;
1606 charger->typec0_enable_io = devm_gpiod_get_optional(charger->dev,
1609 if (!IS_ERR_OR_NULL(charger->typec0_enable_io))
1610 gpiod_direction_output(charger->typec0_enable_io, 0);
1612 charger->typec1_enable_io = devm_gpiod_get_optional(charger->dev,
1615 if (!IS_ERR_OR_NULL(charger->typec1_enable_io))
1616 gpiod_direction_output(charger->typec1_enable_io, 0);
1618 charger->typec0_discharge_io =
1619 devm_gpiod_get_optional(charger->dev, "typec0-discharge",
1622 charger->typec1_discharge_io =
1623 devm_gpiod_get_optional(charger->dev, "typec1-discharge",
1626 ret = of_property_read_u32(np, "pd-charge-only",
1627 &charger->pd_charge_only);
1629 dev_err(charger->dev, "pd-charge-only!\n");
1634 static int bq25700_probe(struct i2c_client *client,
1635 const struct i2c_device_id *id)
1637 struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
1638 struct device *dev = &client->dev;
1639 struct bq25700_device *charger;
1644 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
1647 charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
1651 charger->client = client;
1653 charger->regmap = devm_regmap_init_i2c(client,
1654 &bq25700_regmap_config);
1656 if (IS_ERR(charger->regmap)) {
1657 dev_err(&client->dev, "Failed to initialize regmap\n");
1661 for (i = 0; i < ARRAY_SIZE(bq25700_reg_fields); i++) {
1662 const struct reg_field *reg_fields = bq25700_reg_fields;
1664 charger->rmap_fields[i] =
1665 devm_regmap_field_alloc(dev,
1668 if (IS_ERR(charger->rmap_fields[i])) {
1669 dev_err(dev, "cannot allocate regmap field\n");
1670 return PTR_ERR(charger->rmap_fields[i]);
1674 i2c_set_clientdata(client, charger);
1676 /*read chip id. Confirm whether to support the chip*/
1677 charger->chip_id = bq25700_field_read(charger, DEVICE_ID);
1679 if (charger->chip_id < 0) {
1680 dev_err(dev, "Cannot read chip ID.\n");
1681 return charger->chip_id;
1684 if (!dev->platform_data) {
1685 ret = bq25700_fw_probe(charger);
1687 dev_err(dev, "Cannot read device properties.\n");
1694 ret = bq25700_hw_init(charger);
1696 dev_err(dev, "Cannot initialize the chip.\n");
1700 bq25700_parse_dt(charger);
1702 bq25700_init_usb(charger);
1703 bq25700_init_sysfs(charger);
1705 if (client->irq < 0) {
1706 dev_err(dev, "No irq resource found.\n");
1710 if (bq25700_field_read(charger, AC_STAT))
1711 irq_flag = IRQF_TRIGGER_LOW;
1713 irq_flag = IRQF_TRIGGER_HIGH;
1715 device_init_wakeup(dev, 1);
1717 ret = devm_request_threaded_irq(dev, client->irq, NULL,
1718 bq25700_irq_handler_thread,
1719 irq_flag | IRQF_ONESHOT,
1720 "bq25700_irq", charger);
1723 enable_irq_wake(client->irq);
1725 bq25700_power_supply_init(charger);
1726 bq25700_charger = charger;
1732 void bq25700_shutdown(struct i2c_client *client)
1735 struct bq25700_device *charger = i2c_get_clientdata(client);
1737 vol_idx = bq25700_find_idx(DEFAULT_INPUTVOL, TBL_INPUTVOL);
1738 bq25700_field_write(charger, INPUT_VOLTAGE, vol_idx);
1739 bq25700_field_write(charger, INPUT_CURRENT,
1740 charger->init_data.input_current_sdp);
1743 #ifdef CONFIG_PM_SLEEP
1744 static int bq25700_pm_suspend(struct device *dev)
1749 static int bq25700_pm_resume(struct device *dev)
1755 static SIMPLE_DEV_PM_OPS(bq25700_pm_ops, bq25700_pm_suspend, bq25700_pm_resume);
1757 static const struct i2c_device_id bq25700_i2c_ids[] = {
1761 MODULE_DEVICE_TABLE(i2c, bq25700_i2c_ids);
1764 static const struct of_device_id bq25700_of_match[] = {
1765 { .compatible = "ti,bq25700", },
1768 MODULE_DEVICE_TABLE(of, bq25700_of_match);
1770 static const struct of_device_id bq25700_of_match[] = {
1775 static struct i2c_driver bq25700_driver = {
1776 .probe = bq25700_probe,
1777 .shutdown = bq25700_shutdown,
1778 .id_table = bq25700_i2c_ids,
1780 .name = "bq25700-charger",
1781 .pm = &bq25700_pm_ops,
1782 .of_match_table = of_match_ptr(bq25700_of_match),
1785 module_i2c_driver(bq25700_driver);
1787 MODULE_LICENSE("GPL");
1788 MODULE_AUTHOR("shengfeixu <xsf@rock-chips.com>");
1789 MODULE_DESCRIPTION("TI bq25700 Charger Driver");