1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // BQ256XX Battery Charger Driver |
3 | // Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ |
4 | |
5 | #include <linux/err.h> |
6 | #include <linux/i2c.h> |
7 | #include <linux/init.h> |
8 | #include <linux/interrupt.h> |
9 | #include <linux/kernel.h> |
10 | #include <linux/module.h> |
11 | #include <linux/gpio/consumer.h> |
12 | #include <linux/power_supply.h> |
13 | #include <linux/regmap.h> |
14 | #include <linux/types.h> |
15 | #include <linux/usb/phy.h> |
16 | #include <linux/device.h> |
17 | #include <linux/moduleparam.h> |
18 | #include <linux/slab.h> |
19 | #include <linux/acpi.h> |
20 | |
21 | #define BQ256XX_MANUFACTURER "Texas Instruments" |
22 | |
23 | #define BQ256XX_INPUT_CURRENT_LIMIT 0x00 |
24 | #define BQ256XX_CHARGER_CONTROL_0 0x01 |
25 | #define BQ256XX_CHARGE_CURRENT_LIMIT 0x02 |
26 | #define BQ256XX_PRECHG_AND_TERM_CURR_LIM 0x03 |
27 | #define BQ256XX_BATTERY_VOLTAGE_LIMIT 0x04 |
28 | #define BQ256XX_CHARGER_CONTROL_1 0x05 |
29 | #define BQ256XX_CHARGER_CONTROL_2 0x06 |
30 | #define BQ256XX_CHARGER_CONTROL_3 0x07 |
31 | #define BQ256XX_CHARGER_STATUS_0 0x08 |
32 | #define BQ256XX_CHARGER_STATUS_1 0x09 |
33 | #define BQ256XX_CHARGER_STATUS_2 0x0a |
34 | #define BQ256XX_PART_INFORMATION 0x0b |
35 | #define BQ256XX_CHARGER_CONTROL_4 0x0c |
36 | |
37 | #define BQ256XX_IINDPM_MASK GENMASK(4, 0) |
38 | #define BQ256XX_IINDPM_STEP_uA 100000 |
39 | #define BQ256XX_IINDPM_OFFSET_uA 100000 |
40 | #define BQ256XX_IINDPM_MIN_uA 100000 |
41 | #define BQ256XX_IINDPM_MAX_uA 3200000 |
42 | #define BQ256XX_IINDPM_DEF_uA 2400000 |
43 | |
44 | #define BQ256XX_TS_IGNORE BIT(6) |
45 | #define BQ256XX_TS_IGNORE_SHIFT 6 |
46 | |
47 | #define BQ256XX_VINDPM_MASK GENMASK(3, 0) |
48 | #define BQ256XX_VINDPM_STEP_uV 100000 |
49 | #define BQ256XX_VINDPM_OFFSET_uV 3900000 |
50 | #define BQ256XX_VINDPM_MIN_uV 3900000 |
51 | #define BQ256XX_VINDPM_MAX_uV 5400000 |
52 | #define BQ256XX_VINDPM_DEF_uV 4500000 |
53 | |
54 | #define BQ256XX_VBATREG_MASK GENMASK(7, 3) |
55 | #define BQ2560X_VBATREG_STEP_uV 32000 |
56 | #define BQ2560X_VBATREG_OFFSET_uV 3856000 |
57 | #define BQ2560X_VBATREG_MIN_uV 3856000 |
58 | #define BQ2560X_VBATREG_MAX_uV 4624000 |
59 | #define BQ2560X_VBATREG_DEF_uV 4208000 |
60 | #define BQ25601D_VBATREG_OFFSET_uV 3847000 |
61 | #define BQ25601D_VBATREG_MIN_uV 3847000 |
62 | #define BQ25601D_VBATREG_MAX_uV 4615000 |
63 | #define BQ25601D_VBATREG_DEF_uV 4199000 |
64 | #define BQ2561X_VBATREG_STEP_uV 10000 |
65 | #define BQ25611D_VBATREG_MIN_uV 3494000 |
66 | #define BQ25611D_VBATREG_MAX_uV 4510000 |
67 | #define BQ25611D_VBATREG_DEF_uV 4190000 |
68 | #define BQ25618_VBATREG_MIN_uV 3504000 |
69 | #define BQ25618_VBATREG_MAX_uV 4500000 |
70 | #define BQ25618_VBATREG_DEF_uV 4200000 |
71 | #define BQ256XX_VBATREG_BIT_SHIFT 3 |
72 | #define BQ2561X_VBATREG_THRESH 0x8 |
73 | #define BQ25611D_VBATREG_THRESH_uV 4290000 |
74 | #define BQ25618_VBATREG_THRESH_uV 4300000 |
75 | |
76 | #define BQ256XX_CHG_CONFIG_MASK BIT(4) |
77 | #define BQ256XX_CHG_CONFIG_BIT_SHIFT 4 |
78 | |
79 | #define BQ256XX_ITERM_MASK GENMASK(3, 0) |
80 | #define BQ256XX_ITERM_STEP_uA 60000 |
81 | #define BQ256XX_ITERM_OFFSET_uA 60000 |
82 | #define BQ256XX_ITERM_MIN_uA 60000 |
83 | #define BQ256XX_ITERM_MAX_uA 780000 |
84 | #define BQ256XX_ITERM_DEF_uA 180000 |
85 | #define BQ25618_ITERM_STEP_uA 20000 |
86 | #define BQ25618_ITERM_OFFSET_uA 20000 |
87 | #define BQ25618_ITERM_MIN_uA 20000 |
88 | #define BQ25618_ITERM_MAX_uA 260000 |
89 | #define BQ25618_ITERM_DEF_uA 60000 |
90 | |
91 | #define BQ256XX_IPRECHG_MASK GENMASK(7, 4) |
92 | #define BQ256XX_IPRECHG_STEP_uA 60000 |
93 | #define BQ256XX_IPRECHG_OFFSET_uA 60000 |
94 | #define BQ256XX_IPRECHG_MIN_uA 60000 |
95 | #define BQ256XX_IPRECHG_MAX_uA 780000 |
96 | #define BQ256XX_IPRECHG_DEF_uA 180000 |
97 | #define BQ25618_IPRECHG_STEP_uA 20000 |
98 | #define BQ25618_IPRECHG_OFFSET_uA 20000 |
99 | #define BQ25618_IPRECHG_MIN_uA 20000 |
100 | #define BQ25618_IPRECHG_MAX_uA 260000 |
101 | #define BQ25618_IPRECHG_DEF_uA 40000 |
102 | #define BQ256XX_IPRECHG_BIT_SHIFT 4 |
103 | |
104 | #define BQ256XX_ICHG_MASK GENMASK(5, 0) |
105 | #define BQ256XX_ICHG_STEP_uA 60000 |
106 | #define BQ256XX_ICHG_MIN_uA 0 |
107 | #define BQ256XX_ICHG_MAX_uA 3000000 |
108 | #define BQ2560X_ICHG_DEF_uA 2040000 |
109 | #define BQ25611D_ICHG_DEF_uA 1020000 |
110 | #define BQ25618_ICHG_STEP_uA 20000 |
111 | #define BQ25618_ICHG_MIN_uA 0 |
112 | #define BQ25618_ICHG_MAX_uA 1500000 |
113 | #define BQ25618_ICHG_DEF_uA 340000 |
114 | #define BQ25618_ICHG_THRESH 0x3c |
115 | #define BQ25618_ICHG_THRESH_uA 1180000 |
116 | |
117 | #define BQ256XX_VBUS_STAT_MASK GENMASK(7, 5) |
118 | #define BQ256XX_VBUS_STAT_NO_INPUT 0 |
119 | #define BQ256XX_VBUS_STAT_USB_SDP BIT(5) |
120 | #define BQ256XX_VBUS_STAT_USB_CDP BIT(6) |
121 | #define BQ256XX_VBUS_STAT_USB_DCP (BIT(6) | BIT(5)) |
122 | #define BQ256XX_VBUS_STAT_USB_OTG (BIT(7) | BIT(6) | BIT(5)) |
123 | |
124 | #define BQ256XX_CHRG_STAT_MASK GENMASK(4, 3) |
125 | #define BQ256XX_CHRG_STAT_NOT_CHRGING 0 |
126 | #define BQ256XX_CHRG_STAT_PRECHRGING BIT(3) |
127 | #define BQ256XX_CHRG_STAT_FAST_CHRGING BIT(4) |
128 | #define BQ256XX_CHRG_STAT_CHRG_TERM (BIT(4) | BIT(3)) |
129 | |
130 | #define BQ256XX_PG_STAT_MASK BIT(2) |
131 | #define BQ256XX_WDT_FAULT_MASK BIT(7) |
132 | #define BQ256XX_CHRG_FAULT_MASK GENMASK(5, 4) |
133 | #define BQ256XX_CHRG_FAULT_NORMAL 0 |
134 | #define BQ256XX_CHRG_FAULT_INPUT BIT(4) |
135 | #define BQ256XX_CHRG_FAULT_THERM BIT(5) |
136 | #define BQ256XX_CHRG_FAULT_CST_EXPIRE (BIT(5) | BIT(4)) |
137 | #define BQ256XX_BAT_FAULT_MASK BIT(3) |
138 | #define BQ256XX_NTC_FAULT_MASK GENMASK(2, 0) |
139 | #define BQ256XX_NTC_FAULT_WARM BIT(1) |
140 | #define BQ256XX_NTC_FAULT_COOL (BIT(1) | BIT(0)) |
141 | #define BQ256XX_NTC_FAULT_COLD (BIT(2) | BIT(0)) |
142 | #define BQ256XX_NTC_FAULT_HOT (BIT(2) | BIT(1)) |
143 | |
144 | #define BQ256XX_NUM_WD_VAL 4 |
145 | #define BQ256XX_WATCHDOG_MASK GENMASK(5, 4) |
146 | #define BQ256XX_WATCHDOG_MAX 1600000 |
147 | #define BQ256XX_WATCHDOG_DIS 0 |
148 | #define BQ256XX_WDT_BIT_SHIFT 4 |
149 | |
150 | #define BQ256XX_REG_RST BIT(7) |
151 | |
152 | /** |
153 | * struct bq256xx_init_data - |
154 | * @ichg: fast charge current |
155 | * @iindpm: input current limit |
156 | * @vbatreg: charge voltage |
157 | * @iterm: termination current |
158 | * @iprechg: precharge current |
159 | * @vindpm: input voltage limit |
160 | * @ichg_max: maximum fast charge current |
161 | * @vbatreg_max: maximum charge voltage |
162 | * @ts_ignore: TS_IGNORE flag |
163 | */ |
164 | struct bq256xx_init_data { |
165 | u32 ichg; |
166 | u32 iindpm; |
167 | u32 vbatreg; |
168 | u32 iterm; |
169 | u32 iprechg; |
170 | u32 vindpm; |
171 | u32 ichg_max; |
172 | u32 vbatreg_max; |
173 | bool ts_ignore; |
174 | }; |
175 | |
176 | /** |
177 | * struct bq256xx_state - |
178 | * @vbus_stat: VBUS status according to BQ256XX_CHARGER_STATUS_0 |
179 | * @chrg_stat: charging status according to BQ256XX_CHARGER_STATUS_0 |
180 | * @online: PG status according to BQ256XX_CHARGER_STATUS_0 |
181 | * |
182 | * @wdt_fault: watchdog fault according to BQ256XX_CHARGER_STATUS_1 |
183 | * @bat_fault: battery fault according to BQ256XX_CHARGER_STATUS_1 |
184 | * @chrg_fault: charging fault according to BQ256XX_CHARGER_STATUS_1 |
185 | * @ntc_fault: TS fault according to BQ256XX_CHARGER_STATUS_1 |
186 | */ |
187 | struct bq256xx_state { |
188 | u8 vbus_stat; |
189 | u8 chrg_stat; |
190 | bool online; |
191 | |
192 | u8 wdt_fault; |
193 | u8 bat_fault; |
194 | u8 chrg_fault; |
195 | u8 ntc_fault; |
196 | }; |
197 | |
198 | enum bq256xx_id { |
199 | BQ25600, |
200 | BQ25600D, |
201 | BQ25601, |
202 | BQ25601D, |
203 | BQ25618, |
204 | BQ25619, |
205 | BQ25611D, |
206 | }; |
207 | |
208 | /** |
209 | * struct bq256xx_device - |
210 | * @client: i2c client structure |
211 | * @regmap: register map structure |
212 | * @dev: device structure |
213 | * @charger: power supply registered for the charger |
214 | * @battery: power supply registered for the battery |
215 | * @lock: mutex lock structure |
216 | * |
217 | * @usb2_phy: usb_phy identifier |
218 | * @usb3_phy: usb_phy identifier |
219 | * @usb_nb: notifier block |
220 | * @usb_work: usb work queue |
221 | * @usb_event: usb_event code |
222 | * |
223 | * @model_name: i2c name string |
224 | * |
225 | * @init_data: initialization data |
226 | * @chip_info: device variant information |
227 | * @state: device status and faults |
228 | * @watchdog_timer: watchdog timer value in milliseconds |
229 | */ |
230 | struct bq256xx_device { |
231 | struct i2c_client *client; |
232 | struct device *dev; |
233 | struct power_supply *charger; |
234 | struct power_supply *battery; |
235 | struct mutex lock; |
236 | struct regmap *regmap; |
237 | |
238 | struct usb_phy *usb2_phy; |
239 | struct usb_phy *usb3_phy; |
240 | struct notifier_block usb_nb; |
241 | struct work_struct usb_work; |
242 | unsigned long usb_event; |
243 | |
244 | char model_name[I2C_NAME_SIZE]; |
245 | |
246 | struct bq256xx_init_data init_data; |
247 | const struct bq256xx_chip_info *chip_info; |
248 | struct bq256xx_state state; |
249 | int watchdog_timer; |
250 | }; |
251 | |
252 | /** |
253 | * struct bq256xx_chip_info - |
254 | * @model_id: device instance |
255 | * |
256 | * @bq256xx_regmap_config: regmap configuration struct |
257 | * @bq256xx_get_ichg: pointer to instance specific get_ichg function |
258 | * @bq256xx_get_iindpm: pointer to instance specific get_iindpm function |
259 | * @bq256xx_get_vbatreg: pointer to instance specific get_vbatreg function |
260 | * @bq256xx_get_iterm: pointer to instance specific get_iterm function |
261 | * @bq256xx_get_iprechg: pointer to instance specific get_iprechg function |
262 | * @bq256xx_get_vindpm: pointer to instance specific get_vindpm function |
263 | * |
264 | * @bq256xx_set_ichg: pointer to instance specific set_ichg function |
265 | * @bq256xx_set_iindpm: pointer to instance specific set_iindpm function |
266 | * @bq256xx_set_vbatreg: pointer to instance specific set_vbatreg function |
267 | * @bq256xx_set_iterm: pointer to instance specific set_iterm function |
268 | * @bq256xx_set_iprechg: pointer to instance specific set_iprechg function |
269 | * @bq256xx_set_vindpm: pointer to instance specific set_vindpm function |
270 | * @bq256xx_set_charge_type: pointer to instance specific set_charge_type function |
271 | * @bq256xx_set_ts_ignore: pointer to instance specific set_ts_ignore function |
272 | * |
273 | * @bq256xx_def_ichg: default ichg value in microamps |
274 | * @bq256xx_def_iindpm: default iindpm value in microamps |
275 | * @bq256xx_def_vbatreg: default vbatreg value in microvolts |
276 | * @bq256xx_def_iterm: default iterm value in microamps |
277 | * @bq256xx_def_iprechg: default iprechg value in microamps |
278 | * @bq256xx_def_vindpm: default vindpm value in microvolts |
279 | * |
280 | * @bq256xx_max_ichg: maximum charge current in microamps |
281 | * @bq256xx_max_vbatreg: maximum battery regulation voltage in microvolts |
282 | * |
283 | * @has_usb_detect: indicates whether device has BC1.2 detection |
284 | */ |
285 | struct bq256xx_chip_info { |
286 | int model_id; |
287 | |
288 | const struct regmap_config *bq256xx_regmap_config; |
289 | |
290 | int (*bq256xx_get_ichg)(struct bq256xx_device *bq); |
291 | int (*bq256xx_get_iindpm)(struct bq256xx_device *bq); |
292 | int (*bq256xx_get_vbatreg)(struct bq256xx_device *bq); |
293 | int (*bq256xx_get_iterm)(struct bq256xx_device *bq); |
294 | int (*bq256xx_get_iprechg)(struct bq256xx_device *bq); |
295 | int (*bq256xx_get_vindpm)(struct bq256xx_device *bq); |
296 | |
297 | int (*bq256xx_set_ichg)(struct bq256xx_device *bq, int ichg); |
298 | int (*bq256xx_set_iindpm)(struct bq256xx_device *bq, int iindpm); |
299 | int (*bq256xx_set_vbatreg)(struct bq256xx_device *bq, int vbatreg); |
300 | int (*bq256xx_set_iterm)(struct bq256xx_device *bq, int iterm); |
301 | int (*bq256xx_set_iprechg)(struct bq256xx_device *bq, int iprechg); |
302 | int (*bq256xx_set_vindpm)(struct bq256xx_device *bq, int vindpm); |
303 | int (*bq256xx_set_charge_type)(struct bq256xx_device *bq, int type); |
304 | int (*bq256xx_set_ts_ignore)(struct bq256xx_device *bq, bool ts_ignore); |
305 | |
306 | int bq256xx_def_ichg; |
307 | int bq256xx_def_iindpm; |
308 | int bq256xx_def_vbatreg; |
309 | int bq256xx_def_iterm; |
310 | int bq256xx_def_iprechg; |
311 | int bq256xx_def_vindpm; |
312 | |
313 | int bq256xx_max_ichg; |
314 | int bq256xx_max_vbatreg; |
315 | |
316 | bool has_usb_detect; |
317 | }; |
318 | |
319 | static int bq256xx_watchdog_time[BQ256XX_NUM_WD_VAL] = { |
320 | 0, 40000, 80000, 1600000 |
321 | }; |
322 | |
323 | static const int bq25611d_vbatreg_values[] = { |
324 | 3494000, 3590000, 3686000, 3790000, 3894000, 3990000, 4090000, 4140000, |
325 | 4190000 |
326 | }; |
327 | |
328 | static const int bq25618_619_vbatreg_values[] = { |
329 | 3504000, 3600000, 3696000, 3800000, 3904000, 4000000, 4100000, 4150000, |
330 | 4200000 |
331 | }; |
332 | |
333 | static const int bq25618_619_ichg_values[] = { |
334 | 1290000, 1360000, 1430000, 1500000 |
335 | }; |
336 | |
337 | static enum power_supply_usb_type bq256xx_usb_type[] = { |
338 | POWER_SUPPLY_USB_TYPE_SDP, |
339 | POWER_SUPPLY_USB_TYPE_CDP, |
340 | POWER_SUPPLY_USB_TYPE_DCP, |
341 | POWER_SUPPLY_USB_TYPE_UNKNOWN, |
342 | POWER_SUPPLY_USB_TYPE_ACA, |
343 | }; |
344 | |
345 | static int bq256xx_array_parse(int array_size, int val, const int array[]) |
346 | { |
347 | int i = 0; |
348 | |
349 | if (val < array[i]) |
350 | return i - 1; |
351 | |
352 | if (val >= array[array_size - 1]) |
353 | return array_size - 1; |
354 | |
355 | for (i = 1; i < array_size; i++) { |
356 | if (val == array[i]) |
357 | return i; |
358 | |
359 | if (val > array[i - 1] && val < array[i]) { |
360 | if (val < array[i]) |
361 | return i - 1; |
362 | else |
363 | return i; |
364 | } |
365 | } |
366 | return -EINVAL; |
367 | } |
368 | |
369 | static int bq256xx_usb_notifier(struct notifier_block *nb, unsigned long val, |
370 | void *priv) |
371 | { |
372 | struct bq256xx_device *bq = |
373 | container_of(nb, struct bq256xx_device, usb_nb); |
374 | |
375 | bq->usb_event = val; |
376 | queue_work(wq: system_power_efficient_wq, work: &bq->usb_work); |
377 | |
378 | return NOTIFY_OK; |
379 | } |
380 | |
381 | static void bq256xx_usb_work(struct work_struct *data) |
382 | { |
383 | struct bq256xx_device *bq = |
384 | container_of(data, struct bq256xx_device, usb_work); |
385 | |
386 | switch (bq->usb_event) { |
387 | case USB_EVENT_ID: |
388 | break; |
389 | case USB_EVENT_NONE: |
390 | power_supply_changed(psy: bq->charger); |
391 | break; |
392 | default: |
393 | dev_err(bq->dev, "Error switching to charger mode.\n" ); |
394 | break; |
395 | } |
396 | } |
397 | |
398 | static struct reg_default bq2560x_reg_defs[] = { |
399 | {BQ256XX_INPUT_CURRENT_LIMIT, 0x17}, |
400 | {BQ256XX_CHARGER_CONTROL_0, 0x1a}, |
401 | {BQ256XX_CHARGE_CURRENT_LIMIT, 0xa2}, |
402 | {BQ256XX_PRECHG_AND_TERM_CURR_LIM, 0x22}, |
403 | {BQ256XX_BATTERY_VOLTAGE_LIMIT, 0x58}, |
404 | {BQ256XX_CHARGER_CONTROL_1, 0x9f}, |
405 | {BQ256XX_CHARGER_CONTROL_2, 0x66}, |
406 | {BQ256XX_CHARGER_CONTROL_3, 0x4c}, |
407 | }; |
408 | |
409 | static struct reg_default bq25611d_reg_defs[] = { |
410 | {BQ256XX_INPUT_CURRENT_LIMIT, 0x17}, |
411 | {BQ256XX_CHARGER_CONTROL_0, 0x1a}, |
412 | {BQ256XX_CHARGE_CURRENT_LIMIT, 0x91}, |
413 | {BQ256XX_PRECHG_AND_TERM_CURR_LIM, 0x12}, |
414 | {BQ256XX_BATTERY_VOLTAGE_LIMIT, 0x40}, |
415 | {BQ256XX_CHARGER_CONTROL_1, 0x9e}, |
416 | {BQ256XX_CHARGER_CONTROL_2, 0xe6}, |
417 | {BQ256XX_CHARGER_CONTROL_3, 0x4c}, |
418 | {BQ256XX_PART_INFORMATION, 0x54}, |
419 | {BQ256XX_CHARGER_CONTROL_4, 0x75}, |
420 | }; |
421 | |
422 | static struct reg_default bq25618_619_reg_defs[] = { |
423 | {BQ256XX_INPUT_CURRENT_LIMIT, 0x17}, |
424 | {BQ256XX_CHARGER_CONTROL_0, 0x1a}, |
425 | {BQ256XX_CHARGE_CURRENT_LIMIT, 0x91}, |
426 | {BQ256XX_PRECHG_AND_TERM_CURR_LIM, 0x12}, |
427 | {BQ256XX_BATTERY_VOLTAGE_LIMIT, 0x40}, |
428 | {BQ256XX_CHARGER_CONTROL_1, 0x9e}, |
429 | {BQ256XX_CHARGER_CONTROL_2, 0xe6}, |
430 | {BQ256XX_CHARGER_CONTROL_3, 0x4c}, |
431 | {BQ256XX_PART_INFORMATION, 0x2c}, |
432 | {BQ256XX_CHARGER_CONTROL_4, 0x75}, |
433 | }; |
434 | |
435 | static int bq256xx_get_state(struct bq256xx_device *bq, |
436 | struct bq256xx_state *state) |
437 | { |
438 | unsigned int charger_status_0; |
439 | unsigned int charger_status_1; |
440 | int ret; |
441 | |
442 | ret = regmap_read(map: bq->regmap, BQ256XX_CHARGER_STATUS_0, |
443 | val: &charger_status_0); |
444 | if (ret) |
445 | return ret; |
446 | |
447 | ret = regmap_read(map: bq->regmap, BQ256XX_CHARGER_STATUS_1, |
448 | val: &charger_status_1); |
449 | if (ret) |
450 | return ret; |
451 | |
452 | state->vbus_stat = charger_status_0 & BQ256XX_VBUS_STAT_MASK; |
453 | state->chrg_stat = charger_status_0 & BQ256XX_CHRG_STAT_MASK; |
454 | state->online = charger_status_0 & BQ256XX_PG_STAT_MASK; |
455 | |
456 | state->wdt_fault = charger_status_1 & BQ256XX_WDT_FAULT_MASK; |
457 | state->bat_fault = charger_status_1 & BQ256XX_BAT_FAULT_MASK; |
458 | state->chrg_fault = charger_status_1 & BQ256XX_CHRG_FAULT_MASK; |
459 | state->ntc_fault = charger_status_1 & BQ256XX_NTC_FAULT_MASK; |
460 | |
461 | return 0; |
462 | } |
463 | |
464 | static int bq256xx_set_charge_type(struct bq256xx_device *bq, int type) |
465 | { |
466 | int chg_config = 0; |
467 | |
468 | switch (type) { |
469 | case POWER_SUPPLY_CHARGE_TYPE_NONE: |
470 | chg_config = 0x0; |
471 | break; |
472 | case POWER_SUPPLY_CHARGE_TYPE_TRICKLE: |
473 | case POWER_SUPPLY_CHARGE_TYPE_FAST: |
474 | chg_config = 0x1; |
475 | break; |
476 | default: |
477 | return -EINVAL; |
478 | } |
479 | |
480 | return regmap_update_bits(map: bq->regmap, BQ256XX_CHARGER_CONTROL_0, |
481 | BQ256XX_CHG_CONFIG_MASK, |
482 | val: (chg_config ? 1 : 0) << BQ256XX_CHG_CONFIG_BIT_SHIFT); |
483 | } |
484 | |
485 | static int bq256xx_get_ichg_curr(struct bq256xx_device *bq) |
486 | { |
487 | unsigned int charge_current_limit; |
488 | unsigned int ichg_reg_code; |
489 | int ret; |
490 | |
491 | ret = regmap_read(map: bq->regmap, BQ256XX_CHARGE_CURRENT_LIMIT, |
492 | val: &charge_current_limit); |
493 | if (ret) |
494 | return ret; |
495 | |
496 | ichg_reg_code = charge_current_limit & BQ256XX_ICHG_MASK; |
497 | |
498 | return ichg_reg_code * BQ256XX_ICHG_STEP_uA; |
499 | } |
500 | |
501 | static int bq25618_619_get_ichg_curr(struct bq256xx_device *bq) |
502 | { |
503 | unsigned int charge_current_limit; |
504 | unsigned int ichg_reg_code; |
505 | int ret; |
506 | |
507 | ret = regmap_read(map: bq->regmap, BQ256XX_CHARGE_CURRENT_LIMIT, |
508 | val: &charge_current_limit); |
509 | if (ret) |
510 | return ret; |
511 | |
512 | ichg_reg_code = charge_current_limit & BQ256XX_ICHG_MASK; |
513 | |
514 | if (ichg_reg_code < BQ25618_ICHG_THRESH) |
515 | return ichg_reg_code * BQ25618_ICHG_STEP_uA; |
516 | |
517 | return bq25618_619_ichg_values[ichg_reg_code - BQ25618_ICHG_THRESH]; |
518 | } |
519 | |
520 | static int bq256xx_set_ichg_curr(struct bq256xx_device *bq, int ichg) |
521 | { |
522 | unsigned int ichg_reg_code; |
523 | int ichg_max = bq->init_data.ichg_max; |
524 | |
525 | ichg = clamp(ichg, BQ256XX_ICHG_MIN_uA, ichg_max); |
526 | ichg_reg_code = ichg / BQ256XX_ICHG_STEP_uA; |
527 | |
528 | return regmap_update_bits(map: bq->regmap, BQ256XX_CHARGE_CURRENT_LIMIT, |
529 | BQ256XX_ICHG_MASK, val: ichg_reg_code); |
530 | } |
531 | |
532 | static int bq25618_619_set_ichg_curr(struct bq256xx_device *bq, int ichg) |
533 | { |
534 | int array_size = ARRAY_SIZE(bq25618_619_ichg_values); |
535 | unsigned int ichg_reg_code; |
536 | int ichg_max = bq->init_data.ichg_max; |
537 | |
538 | ichg = clamp(ichg, BQ25618_ICHG_MIN_uA, ichg_max); |
539 | |
540 | if (ichg <= BQ25618_ICHG_THRESH_uA) { |
541 | ichg_reg_code = ichg / BQ25618_ICHG_STEP_uA; |
542 | } else { |
543 | ichg_reg_code = bq256xx_array_parse(array_size, val: ichg, |
544 | array: bq25618_619_ichg_values) + BQ25618_ICHG_THRESH; |
545 | } |
546 | |
547 | return regmap_update_bits(map: bq->regmap, BQ256XX_CHARGE_CURRENT_LIMIT, |
548 | BQ256XX_ICHG_MASK, val: ichg_reg_code); |
549 | } |
550 | |
551 | static int bq25618_619_get_chrg_volt(struct bq256xx_device *bq) |
552 | { |
553 | unsigned int battery_volt_lim; |
554 | unsigned int vbatreg_reg_code; |
555 | int ret; |
556 | |
557 | ret = regmap_read(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
558 | val: &battery_volt_lim); |
559 | |
560 | if (ret) |
561 | return ret; |
562 | |
563 | vbatreg_reg_code = (battery_volt_lim & BQ256XX_VBATREG_MASK) >> |
564 | BQ256XX_VBATREG_BIT_SHIFT; |
565 | |
566 | if (vbatreg_reg_code > BQ2561X_VBATREG_THRESH) |
567 | return ((vbatreg_reg_code - BQ2561X_VBATREG_THRESH) * |
568 | BQ2561X_VBATREG_STEP_uV) + |
569 | BQ25618_VBATREG_THRESH_uV; |
570 | |
571 | return bq25618_619_vbatreg_values[vbatreg_reg_code]; |
572 | } |
573 | |
574 | static int bq25611d_get_chrg_volt(struct bq256xx_device *bq) |
575 | { |
576 | unsigned int battery_volt_lim; |
577 | unsigned int vbatreg_reg_code; |
578 | int ret; |
579 | |
580 | ret = regmap_read(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
581 | val: &battery_volt_lim); |
582 | if (ret) |
583 | return ret; |
584 | |
585 | vbatreg_reg_code = (battery_volt_lim & BQ256XX_VBATREG_MASK) >> |
586 | BQ256XX_VBATREG_BIT_SHIFT; |
587 | |
588 | if (vbatreg_reg_code > BQ2561X_VBATREG_THRESH) |
589 | return ((vbatreg_reg_code - BQ2561X_VBATREG_THRESH) * |
590 | BQ2561X_VBATREG_STEP_uV) + |
591 | BQ25611D_VBATREG_THRESH_uV; |
592 | |
593 | return bq25611d_vbatreg_values[vbatreg_reg_code]; |
594 | } |
595 | |
596 | static int bq2560x_get_chrg_volt(struct bq256xx_device *bq) |
597 | { |
598 | unsigned int battery_volt_lim; |
599 | unsigned int vbatreg_reg_code; |
600 | int ret; |
601 | |
602 | ret = regmap_read(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
603 | val: &battery_volt_lim); |
604 | if (ret) |
605 | return ret; |
606 | |
607 | vbatreg_reg_code = (battery_volt_lim & BQ256XX_VBATREG_MASK) >> |
608 | BQ256XX_VBATREG_BIT_SHIFT; |
609 | |
610 | return (vbatreg_reg_code * BQ2560X_VBATREG_STEP_uV) |
611 | + BQ2560X_VBATREG_OFFSET_uV; |
612 | } |
613 | |
614 | static int bq25601d_get_chrg_volt(struct bq256xx_device *bq) |
615 | { |
616 | unsigned int battery_volt_lim; |
617 | unsigned int vbatreg_reg_code; |
618 | int ret; |
619 | |
620 | ret = regmap_read(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
621 | val: &battery_volt_lim); |
622 | if (ret) |
623 | return ret; |
624 | |
625 | vbatreg_reg_code = (battery_volt_lim & BQ256XX_VBATREG_MASK) >> |
626 | BQ256XX_VBATREG_BIT_SHIFT; |
627 | |
628 | return (vbatreg_reg_code * BQ2560X_VBATREG_STEP_uV) |
629 | + BQ25601D_VBATREG_OFFSET_uV; |
630 | } |
631 | |
632 | static int bq25618_619_set_chrg_volt(struct bq256xx_device *bq, int vbatreg) |
633 | { |
634 | int array_size = ARRAY_SIZE(bq25618_619_vbatreg_values); |
635 | unsigned int vbatreg_reg_code; |
636 | int vbatreg_max = bq->init_data.vbatreg_max; |
637 | |
638 | vbatreg = clamp(vbatreg, BQ25618_VBATREG_MIN_uV, vbatreg_max); |
639 | |
640 | if (vbatreg > BQ25618_VBATREG_THRESH_uV) |
641 | vbatreg_reg_code = ((vbatreg - |
642 | BQ25618_VBATREG_THRESH_uV) / |
643 | (BQ2561X_VBATREG_STEP_uV)) + BQ2561X_VBATREG_THRESH; |
644 | else { |
645 | vbatreg_reg_code = bq256xx_array_parse(array_size, val: vbatreg, |
646 | array: bq25618_619_vbatreg_values); |
647 | } |
648 | |
649 | return regmap_update_bits(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
650 | BQ256XX_VBATREG_MASK, val: vbatreg_reg_code << |
651 | BQ256XX_VBATREG_BIT_SHIFT); |
652 | } |
653 | |
654 | static int bq25611d_set_chrg_volt(struct bq256xx_device *bq, int vbatreg) |
655 | { |
656 | int array_size = ARRAY_SIZE(bq25611d_vbatreg_values); |
657 | unsigned int vbatreg_reg_code; |
658 | int vbatreg_max = bq->init_data.vbatreg_max; |
659 | |
660 | vbatreg = clamp(vbatreg, BQ25611D_VBATREG_MIN_uV, vbatreg_max); |
661 | |
662 | if (vbatreg > BQ25611D_VBATREG_THRESH_uV) |
663 | vbatreg_reg_code = ((vbatreg - |
664 | BQ25611D_VBATREG_THRESH_uV) / |
665 | (BQ2561X_VBATREG_STEP_uV)) + BQ2561X_VBATREG_THRESH; |
666 | else { |
667 | vbatreg_reg_code = bq256xx_array_parse(array_size, val: vbatreg, |
668 | array: bq25611d_vbatreg_values); |
669 | } |
670 | |
671 | return regmap_update_bits(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
672 | BQ256XX_VBATREG_MASK, val: vbatreg_reg_code << |
673 | BQ256XX_VBATREG_BIT_SHIFT); |
674 | } |
675 | |
676 | static int bq2560x_set_chrg_volt(struct bq256xx_device *bq, int vbatreg) |
677 | { |
678 | unsigned int vbatreg_reg_code; |
679 | int vbatreg_max = bq->init_data.vbatreg_max; |
680 | |
681 | vbatreg = clamp(vbatreg, BQ2560X_VBATREG_MIN_uV, vbatreg_max); |
682 | |
683 | vbatreg_reg_code = (vbatreg - BQ2560X_VBATREG_OFFSET_uV) / |
684 | BQ2560X_VBATREG_STEP_uV; |
685 | |
686 | return regmap_update_bits(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
687 | BQ256XX_VBATREG_MASK, val: vbatreg_reg_code << |
688 | BQ256XX_VBATREG_BIT_SHIFT); |
689 | } |
690 | |
691 | static int bq25601d_set_chrg_volt(struct bq256xx_device *bq, int vbatreg) |
692 | { |
693 | unsigned int vbatreg_reg_code; |
694 | int vbatreg_max = bq->init_data.vbatreg_max; |
695 | |
696 | vbatreg = clamp(vbatreg, BQ25601D_VBATREG_MIN_uV, vbatreg_max); |
697 | |
698 | vbatreg_reg_code = (vbatreg - BQ25601D_VBATREG_OFFSET_uV) / |
699 | BQ2560X_VBATREG_STEP_uV; |
700 | |
701 | return regmap_update_bits(map: bq->regmap, BQ256XX_BATTERY_VOLTAGE_LIMIT, |
702 | BQ256XX_VBATREG_MASK, val: vbatreg_reg_code << |
703 | BQ256XX_VBATREG_BIT_SHIFT); |
704 | } |
705 | |
706 | static int bq256xx_set_ts_ignore(struct bq256xx_device *bq, bool ts_ignore) |
707 | { |
708 | return regmap_update_bits(map: bq->regmap, BQ256XX_INPUT_CURRENT_LIMIT, |
709 | BQ256XX_TS_IGNORE, val: (ts_ignore ? 1 : 0) << BQ256XX_TS_IGNORE_SHIFT); |
710 | } |
711 | |
712 | static int bq256xx_get_prechrg_curr(struct bq256xx_device *bq) |
713 | { |
714 | unsigned int prechg_and_term_curr_lim; |
715 | unsigned int iprechg_reg_code; |
716 | int ret; |
717 | |
718 | ret = regmap_read(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
719 | val: &prechg_and_term_curr_lim); |
720 | if (ret) |
721 | return ret; |
722 | |
723 | iprechg_reg_code = (prechg_and_term_curr_lim & BQ256XX_IPRECHG_MASK) |
724 | >> BQ256XX_IPRECHG_BIT_SHIFT; |
725 | |
726 | return (iprechg_reg_code * BQ256XX_IPRECHG_STEP_uA) + |
727 | BQ256XX_IPRECHG_OFFSET_uA; |
728 | } |
729 | |
730 | static int bq256xx_set_prechrg_curr(struct bq256xx_device *bq, int iprechg) |
731 | { |
732 | unsigned int iprechg_reg_code; |
733 | |
734 | iprechg = clamp(iprechg, BQ256XX_IPRECHG_MIN_uA, |
735 | BQ256XX_IPRECHG_MAX_uA); |
736 | |
737 | iprechg_reg_code = ((iprechg - BQ256XX_IPRECHG_OFFSET_uA) / |
738 | BQ256XX_IPRECHG_STEP_uA) << BQ256XX_IPRECHG_BIT_SHIFT; |
739 | |
740 | return regmap_update_bits(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
741 | BQ256XX_IPRECHG_MASK, val: iprechg_reg_code); |
742 | } |
743 | |
744 | static int bq25618_619_get_prechrg_curr(struct bq256xx_device *bq) |
745 | { |
746 | unsigned int prechg_and_term_curr_lim; |
747 | unsigned int iprechg_reg_code; |
748 | int ret; |
749 | |
750 | ret = regmap_read(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
751 | val: &prechg_and_term_curr_lim); |
752 | if (ret) |
753 | return ret; |
754 | |
755 | iprechg_reg_code = (prechg_and_term_curr_lim & BQ256XX_IPRECHG_MASK) |
756 | >> BQ256XX_IPRECHG_BIT_SHIFT; |
757 | |
758 | return (iprechg_reg_code * BQ25618_IPRECHG_STEP_uA) + |
759 | BQ25618_IPRECHG_OFFSET_uA; |
760 | } |
761 | |
762 | static int bq25618_619_set_prechrg_curr(struct bq256xx_device *bq, int iprechg) |
763 | { |
764 | unsigned int iprechg_reg_code; |
765 | |
766 | iprechg = clamp(iprechg, BQ25618_IPRECHG_MIN_uA, |
767 | BQ25618_IPRECHG_MAX_uA); |
768 | |
769 | iprechg_reg_code = ((iprechg - BQ25618_IPRECHG_OFFSET_uA) / |
770 | BQ25618_IPRECHG_STEP_uA) << BQ256XX_IPRECHG_BIT_SHIFT; |
771 | |
772 | return regmap_update_bits(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
773 | BQ256XX_IPRECHG_MASK, val: iprechg_reg_code); |
774 | } |
775 | |
776 | static int bq256xx_get_term_curr(struct bq256xx_device *bq) |
777 | { |
778 | unsigned int prechg_and_term_curr_lim; |
779 | unsigned int iterm_reg_code; |
780 | int ret; |
781 | |
782 | ret = regmap_read(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
783 | val: &prechg_and_term_curr_lim); |
784 | if (ret) |
785 | return ret; |
786 | |
787 | iterm_reg_code = prechg_and_term_curr_lim & BQ256XX_ITERM_MASK; |
788 | |
789 | return (iterm_reg_code * BQ256XX_ITERM_STEP_uA) + |
790 | BQ256XX_ITERM_OFFSET_uA; |
791 | } |
792 | |
793 | static int bq256xx_set_term_curr(struct bq256xx_device *bq, int iterm) |
794 | { |
795 | unsigned int iterm_reg_code; |
796 | |
797 | iterm = clamp(iterm, BQ256XX_ITERM_MIN_uA, BQ256XX_ITERM_MAX_uA); |
798 | |
799 | iterm_reg_code = (iterm - BQ256XX_ITERM_OFFSET_uA) / |
800 | BQ256XX_ITERM_STEP_uA; |
801 | |
802 | return regmap_update_bits(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
803 | BQ256XX_ITERM_MASK, val: iterm_reg_code); |
804 | } |
805 | |
806 | static int bq25618_619_get_term_curr(struct bq256xx_device *bq) |
807 | { |
808 | unsigned int prechg_and_term_curr_lim; |
809 | unsigned int iterm_reg_code; |
810 | int ret; |
811 | |
812 | ret = regmap_read(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
813 | val: &prechg_and_term_curr_lim); |
814 | if (ret) |
815 | return ret; |
816 | |
817 | iterm_reg_code = prechg_and_term_curr_lim & BQ256XX_ITERM_MASK; |
818 | |
819 | return (iterm_reg_code * BQ25618_ITERM_STEP_uA) + |
820 | BQ25618_ITERM_OFFSET_uA; |
821 | } |
822 | |
823 | static int bq25618_619_set_term_curr(struct bq256xx_device *bq, int iterm) |
824 | { |
825 | unsigned int iterm_reg_code; |
826 | |
827 | iterm = clamp(iterm, BQ25618_ITERM_MIN_uA, BQ25618_ITERM_MAX_uA); |
828 | |
829 | iterm_reg_code = (iterm - BQ25618_ITERM_OFFSET_uA) / |
830 | BQ25618_ITERM_STEP_uA; |
831 | |
832 | return regmap_update_bits(map: bq->regmap, BQ256XX_PRECHG_AND_TERM_CURR_LIM, |
833 | BQ256XX_ITERM_MASK, val: iterm_reg_code); |
834 | } |
835 | |
836 | static int bq256xx_get_input_volt_lim(struct bq256xx_device *bq) |
837 | { |
838 | unsigned int charger_control_2; |
839 | unsigned int vindpm_reg_code; |
840 | int ret; |
841 | |
842 | ret = regmap_read(map: bq->regmap, BQ256XX_CHARGER_CONTROL_2, |
843 | val: &charger_control_2); |
844 | if (ret) |
845 | return ret; |
846 | |
847 | vindpm_reg_code = charger_control_2 & BQ256XX_VINDPM_MASK; |
848 | |
849 | return (vindpm_reg_code * BQ256XX_VINDPM_STEP_uV) + |
850 | BQ256XX_VINDPM_OFFSET_uV; |
851 | } |
852 | |
853 | static int bq256xx_set_input_volt_lim(struct bq256xx_device *bq, int vindpm) |
854 | { |
855 | unsigned int vindpm_reg_code; |
856 | |
857 | vindpm = clamp(vindpm, BQ256XX_VINDPM_MIN_uV, BQ256XX_VINDPM_MAX_uV); |
858 | |
859 | vindpm_reg_code = (vindpm - BQ256XX_VINDPM_OFFSET_uV) / |
860 | BQ256XX_VINDPM_STEP_uV; |
861 | |
862 | return regmap_update_bits(map: bq->regmap, BQ256XX_CHARGER_CONTROL_2, |
863 | BQ256XX_VINDPM_MASK, val: vindpm_reg_code); |
864 | } |
865 | |
866 | static int bq256xx_get_input_curr_lim(struct bq256xx_device *bq) |
867 | { |
868 | unsigned int input_current_limit; |
869 | unsigned int iindpm_reg_code; |
870 | int ret; |
871 | |
872 | ret = regmap_read(map: bq->regmap, BQ256XX_INPUT_CURRENT_LIMIT, |
873 | val: &input_current_limit); |
874 | if (ret) |
875 | return ret; |
876 | |
877 | iindpm_reg_code = input_current_limit & BQ256XX_IINDPM_MASK; |
878 | |
879 | return (iindpm_reg_code * BQ256XX_IINDPM_STEP_uA) + |
880 | BQ256XX_IINDPM_OFFSET_uA; |
881 | } |
882 | |
883 | static int bq256xx_set_input_curr_lim(struct bq256xx_device *bq, int iindpm) |
884 | { |
885 | unsigned int iindpm_reg_code; |
886 | |
887 | iindpm = clamp(iindpm, BQ256XX_IINDPM_MIN_uA, BQ256XX_IINDPM_MAX_uA); |
888 | |
889 | iindpm_reg_code = (iindpm - BQ256XX_IINDPM_OFFSET_uA) / |
890 | BQ256XX_IINDPM_STEP_uA; |
891 | |
892 | return regmap_update_bits(map: bq->regmap, BQ256XX_INPUT_CURRENT_LIMIT, |
893 | BQ256XX_IINDPM_MASK, val: iindpm_reg_code); |
894 | } |
895 | |
896 | static void bq256xx_charger_reset(void *data) |
897 | { |
898 | struct bq256xx_device *bq = data; |
899 | |
900 | regmap_update_bits(map: bq->regmap, BQ256XX_PART_INFORMATION, |
901 | BQ256XX_REG_RST, BQ256XX_REG_RST); |
902 | |
903 | if (!IS_ERR_OR_NULL(ptr: bq->usb2_phy)) |
904 | usb_unregister_notifier(x: bq->usb2_phy, nb: &bq->usb_nb); |
905 | |
906 | if (!IS_ERR_OR_NULL(ptr: bq->usb3_phy)) |
907 | usb_unregister_notifier(x: bq->usb3_phy, nb: &bq->usb_nb); |
908 | } |
909 | |
910 | static int bq256xx_set_charger_property(struct power_supply *psy, |
911 | enum power_supply_property prop, |
912 | const union power_supply_propval *val) |
913 | { |
914 | struct bq256xx_device *bq = power_supply_get_drvdata(psy); |
915 | int ret = -EINVAL; |
916 | |
917 | switch (prop) { |
918 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
919 | ret = bq->chip_info->bq256xx_set_iindpm(bq, val->intval); |
920 | if (ret) |
921 | return ret; |
922 | break; |
923 | |
924 | case POWER_SUPPLY_PROP_STATUS: |
925 | break; |
926 | |
927 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
928 | ret = bq->chip_info->bq256xx_set_vbatreg(bq, val->intval); |
929 | if (ret) |
930 | return ret; |
931 | break; |
932 | |
933 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
934 | ret = bq->chip_info->bq256xx_set_ichg(bq, val->intval); |
935 | if (ret) |
936 | return ret; |
937 | break; |
938 | |
939 | case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: |
940 | ret = bq->chip_info->bq256xx_set_iprechg(bq, val->intval); |
941 | if (ret) |
942 | return ret; |
943 | break; |
944 | |
945 | case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: |
946 | ret = bq->chip_info->bq256xx_set_iterm(bq, val->intval); |
947 | if (ret) |
948 | return ret; |
949 | break; |
950 | |
951 | case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT: |
952 | ret = bq->chip_info->bq256xx_set_vindpm(bq, val->intval); |
953 | if (ret) |
954 | return ret; |
955 | break; |
956 | |
957 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
958 | ret = bq->chip_info->bq256xx_set_charge_type(bq, val->intval); |
959 | if (ret) |
960 | return ret; |
961 | break; |
962 | |
963 | default: |
964 | break; |
965 | } |
966 | |
967 | return ret; |
968 | } |
969 | |
970 | |
971 | static int bq256xx_get_battery_property(struct power_supply *psy, |
972 | enum power_supply_property psp, |
973 | union power_supply_propval *val) |
974 | { |
975 | struct bq256xx_device *bq = power_supply_get_drvdata(psy); |
976 | |
977 | switch (psp) { |
978 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: |
979 | val->intval = bq->init_data.ichg_max; |
980 | break; |
981 | |
982 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: |
983 | val->intval = bq->init_data.vbatreg_max; |
984 | break; |
985 | |
986 | default: |
987 | return -EINVAL; |
988 | } |
989 | |
990 | return 0; |
991 | } |
992 | |
993 | static int bq256xx_get_charger_property(struct power_supply *psy, |
994 | enum power_supply_property psp, |
995 | union power_supply_propval *val) |
996 | { |
997 | struct bq256xx_device *bq = power_supply_get_drvdata(psy); |
998 | struct bq256xx_state state; |
999 | int ret = 0; |
1000 | |
1001 | mutex_lock(&bq->lock); |
1002 | ret = bq256xx_get_state(bq, state: &state); |
1003 | mutex_unlock(lock: &bq->lock); |
1004 | if (ret) |
1005 | return ret; |
1006 | |
1007 | switch (psp) { |
1008 | case POWER_SUPPLY_PROP_STATUS: |
1009 | if (state.vbus_stat == BQ256XX_VBUS_STAT_NO_INPUT || |
1010 | state.vbus_stat == BQ256XX_VBUS_STAT_USB_OTG) |
1011 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
1012 | else if (state.chrg_stat == BQ256XX_CHRG_STAT_NOT_CHRGING) |
1013 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; |
1014 | else if (state.chrg_stat == BQ256XX_CHRG_STAT_CHRG_TERM) |
1015 | val->intval = POWER_SUPPLY_STATUS_FULL; |
1016 | else |
1017 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
1018 | break; |
1019 | |
1020 | case POWER_SUPPLY_PROP_HEALTH: |
1021 | val->intval = POWER_SUPPLY_HEALTH_UNKNOWN; |
1022 | if (state.wdt_fault) { |
1023 | val->intval = |
1024 | POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE; |
1025 | } else if (state.bat_fault) { |
1026 | val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; |
1027 | } else { |
1028 | switch (state.chrg_stat) { |
1029 | case BQ256XX_CHRG_FAULT_INPUT: |
1030 | val->intval = |
1031 | POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; |
1032 | break; |
1033 | case BQ256XX_CHRG_FAULT_THERM: |
1034 | val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; |
1035 | break; |
1036 | case BQ256XX_CHRG_FAULT_CST_EXPIRE: |
1037 | val->intval = |
1038 | POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; |
1039 | break; |
1040 | default: |
1041 | break; |
1042 | } |
1043 | |
1044 | switch (state.ntc_fault) { |
1045 | case BQ256XX_NTC_FAULT_WARM: |
1046 | val->intval = POWER_SUPPLY_HEALTH_WARM; |
1047 | break; |
1048 | case BQ256XX_NTC_FAULT_COOL: |
1049 | val->intval = POWER_SUPPLY_HEALTH_COOL; |
1050 | break; |
1051 | case BQ256XX_NTC_FAULT_COLD: |
1052 | val->intval = POWER_SUPPLY_HEALTH_COLD; |
1053 | break; |
1054 | case BQ256XX_NTC_FAULT_HOT: |
1055 | val->intval = POWER_SUPPLY_HEALTH_HOT; |
1056 | break; |
1057 | default: |
1058 | val->intval = POWER_SUPPLY_HEALTH_GOOD; |
1059 | break; |
1060 | } |
1061 | } |
1062 | break; |
1063 | |
1064 | case POWER_SUPPLY_PROP_USB_TYPE: |
1065 | if (bq->chip_info->has_usb_detect) { |
1066 | switch (state.vbus_stat) { |
1067 | case BQ256XX_VBUS_STAT_USB_SDP: |
1068 | val->intval = POWER_SUPPLY_USB_TYPE_SDP; |
1069 | break; |
1070 | case BQ256XX_VBUS_STAT_USB_CDP: |
1071 | val->intval = POWER_SUPPLY_USB_TYPE_CDP; |
1072 | break; |
1073 | case BQ256XX_VBUS_STAT_USB_DCP: |
1074 | val->intval = POWER_SUPPLY_USB_TYPE_DCP; |
1075 | break; |
1076 | case BQ256XX_VBUS_STAT_USB_OTG: |
1077 | val->intval = POWER_SUPPLY_USB_TYPE_ACA; |
1078 | break; |
1079 | default: |
1080 | val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN; |
1081 | break; |
1082 | } |
1083 | } else { |
1084 | switch (state.vbus_stat) { |
1085 | case BQ256XX_VBUS_STAT_USB_SDP: |
1086 | val->intval = POWER_SUPPLY_USB_TYPE_SDP; |
1087 | break; |
1088 | case BQ256XX_VBUS_STAT_USB_OTG: |
1089 | val->intval = POWER_SUPPLY_USB_TYPE_ACA; |
1090 | break; |
1091 | default: |
1092 | val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN; |
1093 | break; |
1094 | } |
1095 | } |
1096 | break; |
1097 | |
1098 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
1099 | switch (state.chrg_stat) { |
1100 | case BQ256XX_CHRG_STAT_NOT_CHRGING: |
1101 | val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; |
1102 | break; |
1103 | case BQ256XX_CHRG_STAT_PRECHRGING: |
1104 | val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; |
1105 | break; |
1106 | case BQ256XX_CHRG_STAT_FAST_CHRGING: |
1107 | val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; |
1108 | break; |
1109 | case BQ256XX_CHRG_STAT_CHRG_TERM: |
1110 | val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; |
1111 | break; |
1112 | default: |
1113 | val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; |
1114 | } |
1115 | break; |
1116 | |
1117 | case POWER_SUPPLY_PROP_MANUFACTURER: |
1118 | val->strval = BQ256XX_MANUFACTURER; |
1119 | break; |
1120 | |
1121 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1122 | val->strval = bq->model_name; |
1123 | break; |
1124 | |
1125 | case POWER_SUPPLY_PROP_ONLINE: |
1126 | val->intval = state.online; |
1127 | break; |
1128 | |
1129 | case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT: |
1130 | ret = bq->chip_info->bq256xx_get_vindpm(bq); |
1131 | if (ret < 0) |
1132 | return ret; |
1133 | val->intval = ret; |
1134 | break; |
1135 | |
1136 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
1137 | ret = bq->chip_info->bq256xx_get_iindpm(bq); |
1138 | if (ret < 0) |
1139 | return ret; |
1140 | val->intval = ret; |
1141 | break; |
1142 | |
1143 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
1144 | ret = bq->chip_info->bq256xx_get_vbatreg(bq); |
1145 | if (ret < 0) |
1146 | return ret; |
1147 | val->intval = ret; |
1148 | break; |
1149 | |
1150 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
1151 | ret = bq->chip_info->bq256xx_get_ichg(bq); |
1152 | if (ret < 0) |
1153 | return ret; |
1154 | val->intval = ret; |
1155 | break; |
1156 | |
1157 | case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: |
1158 | ret = bq->chip_info->bq256xx_get_iprechg(bq); |
1159 | if (ret < 0) |
1160 | return ret; |
1161 | val->intval = ret; |
1162 | break; |
1163 | |
1164 | case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: |
1165 | ret = bq->chip_info->bq256xx_get_iterm(bq); |
1166 | if (ret < 0) |
1167 | return ret; |
1168 | val->intval = ret; |
1169 | break; |
1170 | |
1171 | default: |
1172 | return -EINVAL; |
1173 | } |
1174 | |
1175 | return ret; |
1176 | } |
1177 | |
1178 | static bool bq256xx_state_changed(struct bq256xx_device *bq, |
1179 | struct bq256xx_state *new_state) |
1180 | { |
1181 | struct bq256xx_state old_state; |
1182 | |
1183 | mutex_lock(&bq->lock); |
1184 | old_state = bq->state; |
1185 | mutex_unlock(lock: &bq->lock); |
1186 | |
1187 | return memcmp(p: &old_state, q: new_state, size: sizeof(struct bq256xx_state)) != 0; |
1188 | } |
1189 | |
1190 | static irqreturn_t bq256xx_irq_handler_thread(int irq, void *private) |
1191 | { |
1192 | struct bq256xx_device *bq = private; |
1193 | struct bq256xx_state state; |
1194 | int ret; |
1195 | |
1196 | ret = bq256xx_get_state(bq, state: &state); |
1197 | if (ret < 0) |
1198 | goto irq_out; |
1199 | |
1200 | if (!bq256xx_state_changed(bq, new_state: &state)) |
1201 | goto irq_out; |
1202 | |
1203 | mutex_lock(&bq->lock); |
1204 | bq->state = state; |
1205 | mutex_unlock(lock: &bq->lock); |
1206 | |
1207 | power_supply_changed(psy: bq->charger); |
1208 | |
1209 | irq_out: |
1210 | return IRQ_HANDLED; |
1211 | } |
1212 | |
1213 | static enum power_supply_property bq256xx_power_supply_props[] = { |
1214 | POWER_SUPPLY_PROP_MANUFACTURER, |
1215 | POWER_SUPPLY_PROP_MODEL_NAME, |
1216 | POWER_SUPPLY_PROP_STATUS, |
1217 | POWER_SUPPLY_PROP_ONLINE, |
1218 | POWER_SUPPLY_PROP_HEALTH, |
1219 | POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT, |
1220 | POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, |
1221 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
1222 | POWER_SUPPLY_PROP_USB_TYPE, |
1223 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, |
1224 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, |
1225 | POWER_SUPPLY_PROP_PRECHARGE_CURRENT, |
1226 | POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, |
1227 | }; |
1228 | |
1229 | static enum power_supply_property bq256xx_battery_props[] = { |
1230 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, |
1231 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, |
1232 | }; |
1233 | |
1234 | static int bq256xx_property_is_writeable(struct power_supply *psy, |
1235 | enum power_supply_property prop) |
1236 | { |
1237 | switch (prop) { |
1238 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
1239 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
1240 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
1241 | case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: |
1242 | case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: |
1243 | case POWER_SUPPLY_PROP_STATUS: |
1244 | case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT: |
1245 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
1246 | return true; |
1247 | default: |
1248 | return false; |
1249 | } |
1250 | } |
1251 | |
1252 | static const struct power_supply_desc bq256xx_power_supply_desc = { |
1253 | .name = "bq256xx-charger" , |
1254 | .type = POWER_SUPPLY_TYPE_USB, |
1255 | .usb_types = bq256xx_usb_type, |
1256 | .num_usb_types = ARRAY_SIZE(bq256xx_usb_type), |
1257 | .properties = bq256xx_power_supply_props, |
1258 | .num_properties = ARRAY_SIZE(bq256xx_power_supply_props), |
1259 | .get_property = bq256xx_get_charger_property, |
1260 | .set_property = bq256xx_set_charger_property, |
1261 | .property_is_writeable = bq256xx_property_is_writeable, |
1262 | }; |
1263 | |
1264 | static struct power_supply_desc bq256xx_battery_desc = { |
1265 | .name = "bq256xx-battery" , |
1266 | .type = POWER_SUPPLY_TYPE_BATTERY, |
1267 | .get_property = bq256xx_get_battery_property, |
1268 | .properties = bq256xx_battery_props, |
1269 | .num_properties = ARRAY_SIZE(bq256xx_battery_props), |
1270 | .property_is_writeable = bq256xx_property_is_writeable, |
1271 | }; |
1272 | |
1273 | |
1274 | static bool bq256xx_is_volatile_reg(struct device *dev, unsigned int reg) |
1275 | { |
1276 | switch (reg) { |
1277 | case BQ256XX_INPUT_CURRENT_LIMIT: |
1278 | case BQ256XX_CHARGER_STATUS_0...BQ256XX_CHARGER_STATUS_2: |
1279 | return true; |
1280 | default: |
1281 | return false; |
1282 | } |
1283 | } |
1284 | |
1285 | static const struct regmap_config bq25600_regmap_config = { |
1286 | .reg_bits = 8, |
1287 | .val_bits = 8, |
1288 | |
1289 | .max_register = BQ256XX_PART_INFORMATION, |
1290 | .reg_defaults = bq2560x_reg_defs, |
1291 | .num_reg_defaults = ARRAY_SIZE(bq2560x_reg_defs), |
1292 | .cache_type = REGCACHE_FLAT, |
1293 | .volatile_reg = bq256xx_is_volatile_reg, |
1294 | }; |
1295 | |
1296 | static const struct regmap_config bq25611d_regmap_config = { |
1297 | .reg_bits = 8, |
1298 | .val_bits = 8, |
1299 | |
1300 | .max_register = BQ256XX_CHARGER_CONTROL_4, |
1301 | .reg_defaults = bq25611d_reg_defs, |
1302 | .num_reg_defaults = ARRAY_SIZE(bq25611d_reg_defs), |
1303 | .cache_type = REGCACHE_FLAT, |
1304 | .volatile_reg = bq256xx_is_volatile_reg, |
1305 | }; |
1306 | |
1307 | static const struct regmap_config bq25618_619_regmap_config = { |
1308 | .reg_bits = 8, |
1309 | .val_bits = 8, |
1310 | |
1311 | .max_register = BQ256XX_CHARGER_CONTROL_4, |
1312 | .reg_defaults = bq25618_619_reg_defs, |
1313 | .num_reg_defaults = ARRAY_SIZE(bq25618_619_reg_defs), |
1314 | .cache_type = REGCACHE_FLAT, |
1315 | .volatile_reg = bq256xx_is_volatile_reg, |
1316 | }; |
1317 | |
1318 | static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = { |
1319 | [BQ25600] = { |
1320 | .model_id = BQ25600, |
1321 | .bq256xx_regmap_config = &bq25600_regmap_config, |
1322 | .bq256xx_get_ichg = bq256xx_get_ichg_curr, |
1323 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1324 | .bq256xx_get_vbatreg = bq2560x_get_chrg_volt, |
1325 | .bq256xx_get_iterm = bq256xx_get_term_curr, |
1326 | .bq256xx_get_iprechg = bq256xx_get_prechrg_curr, |
1327 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1328 | .bq256xx_set_ts_ignore = NULL, |
1329 | |
1330 | .bq256xx_set_ichg = bq256xx_set_ichg_curr, |
1331 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1332 | .bq256xx_set_vbatreg = bq2560x_set_chrg_volt, |
1333 | .bq256xx_set_iterm = bq256xx_set_term_curr, |
1334 | .bq256xx_set_iprechg = bq256xx_set_prechrg_curr, |
1335 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1336 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1337 | |
1338 | .bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA, |
1339 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1340 | .bq256xx_def_vbatreg = BQ2560X_VBATREG_DEF_uV, |
1341 | .bq256xx_def_iterm = BQ256XX_ITERM_DEF_uA, |
1342 | .bq256xx_def_iprechg = BQ256XX_IPRECHG_DEF_uA, |
1343 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1344 | |
1345 | .bq256xx_max_ichg = BQ256XX_ICHG_MAX_uA, |
1346 | .bq256xx_max_vbatreg = BQ2560X_VBATREG_MAX_uV, |
1347 | |
1348 | .has_usb_detect = false, |
1349 | }, |
1350 | |
1351 | [BQ25600D] = { |
1352 | .model_id = BQ25600D, |
1353 | .bq256xx_regmap_config = &bq25600_regmap_config, |
1354 | .bq256xx_get_ichg = bq256xx_get_ichg_curr, |
1355 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1356 | .bq256xx_get_vbatreg = bq2560x_get_chrg_volt, |
1357 | .bq256xx_get_iterm = bq256xx_get_term_curr, |
1358 | .bq256xx_get_iprechg = bq256xx_get_prechrg_curr, |
1359 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1360 | |
1361 | .bq256xx_set_ichg = bq256xx_set_ichg_curr, |
1362 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1363 | .bq256xx_set_vbatreg = bq2560x_set_chrg_volt, |
1364 | .bq256xx_set_iterm = bq256xx_set_term_curr, |
1365 | .bq256xx_set_iprechg = bq256xx_set_prechrg_curr, |
1366 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1367 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1368 | .bq256xx_set_ts_ignore = NULL, |
1369 | |
1370 | .bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA, |
1371 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1372 | .bq256xx_def_vbatreg = BQ2560X_VBATREG_DEF_uV, |
1373 | .bq256xx_def_iterm = BQ256XX_ITERM_DEF_uA, |
1374 | .bq256xx_def_iprechg = BQ256XX_IPRECHG_DEF_uA, |
1375 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1376 | |
1377 | .bq256xx_max_ichg = BQ256XX_ICHG_MAX_uA, |
1378 | .bq256xx_max_vbatreg = BQ2560X_VBATREG_MAX_uV, |
1379 | |
1380 | .has_usb_detect = true, |
1381 | }, |
1382 | |
1383 | [BQ25601] = { |
1384 | .model_id = BQ25601, |
1385 | .bq256xx_regmap_config = &bq25600_regmap_config, |
1386 | .bq256xx_get_ichg = bq256xx_get_ichg_curr, |
1387 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1388 | .bq256xx_get_vbatreg = bq2560x_get_chrg_volt, |
1389 | .bq256xx_get_iterm = bq256xx_get_term_curr, |
1390 | .bq256xx_get_iprechg = bq256xx_get_prechrg_curr, |
1391 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1392 | |
1393 | .bq256xx_set_ichg = bq256xx_set_ichg_curr, |
1394 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1395 | .bq256xx_set_vbatreg = bq2560x_set_chrg_volt, |
1396 | .bq256xx_set_iterm = bq256xx_set_term_curr, |
1397 | .bq256xx_set_iprechg = bq256xx_set_prechrg_curr, |
1398 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1399 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1400 | .bq256xx_set_ts_ignore = NULL, |
1401 | |
1402 | .bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA, |
1403 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1404 | .bq256xx_def_vbatreg = BQ2560X_VBATREG_DEF_uV, |
1405 | .bq256xx_def_iterm = BQ256XX_ITERM_DEF_uA, |
1406 | .bq256xx_def_iprechg = BQ256XX_IPRECHG_DEF_uA, |
1407 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1408 | |
1409 | .bq256xx_max_ichg = BQ256XX_ICHG_MAX_uA, |
1410 | .bq256xx_max_vbatreg = BQ2560X_VBATREG_MAX_uV, |
1411 | |
1412 | .has_usb_detect = false, |
1413 | }, |
1414 | |
1415 | [BQ25601D] = { |
1416 | .model_id = BQ25601D, |
1417 | .bq256xx_regmap_config = &bq25600_regmap_config, |
1418 | .bq256xx_get_ichg = bq256xx_get_ichg_curr, |
1419 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1420 | .bq256xx_get_vbatreg = bq25601d_get_chrg_volt, |
1421 | .bq256xx_get_iterm = bq256xx_get_term_curr, |
1422 | .bq256xx_get_iprechg = bq256xx_get_prechrg_curr, |
1423 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1424 | |
1425 | .bq256xx_set_ichg = bq256xx_set_ichg_curr, |
1426 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1427 | .bq256xx_set_vbatreg = bq25601d_set_chrg_volt, |
1428 | .bq256xx_set_iterm = bq256xx_set_term_curr, |
1429 | .bq256xx_set_iprechg = bq256xx_set_prechrg_curr, |
1430 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1431 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1432 | .bq256xx_set_ts_ignore = NULL, |
1433 | |
1434 | .bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA, |
1435 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1436 | .bq256xx_def_vbatreg = BQ2560X_VBATREG_DEF_uV, |
1437 | .bq256xx_def_iterm = BQ256XX_ITERM_DEF_uA, |
1438 | .bq256xx_def_iprechg = BQ256XX_IPRECHG_DEF_uA, |
1439 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1440 | |
1441 | .bq256xx_max_ichg = BQ256XX_ICHG_MAX_uA, |
1442 | .bq256xx_max_vbatreg = BQ2560X_VBATREG_MAX_uV, |
1443 | |
1444 | .has_usb_detect = true, |
1445 | }, |
1446 | |
1447 | [BQ25611D] = { |
1448 | .model_id = BQ25611D, |
1449 | .bq256xx_regmap_config = &bq25611d_regmap_config, |
1450 | .bq256xx_get_ichg = bq256xx_get_ichg_curr, |
1451 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1452 | .bq256xx_get_vbatreg = bq25611d_get_chrg_volt, |
1453 | .bq256xx_get_iterm = bq256xx_get_term_curr, |
1454 | .bq256xx_get_iprechg = bq256xx_get_prechrg_curr, |
1455 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1456 | |
1457 | .bq256xx_set_ichg = bq256xx_set_ichg_curr, |
1458 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1459 | .bq256xx_set_vbatreg = bq25611d_set_chrg_volt, |
1460 | .bq256xx_set_iterm = bq256xx_set_term_curr, |
1461 | .bq256xx_set_iprechg = bq256xx_set_prechrg_curr, |
1462 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1463 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1464 | .bq256xx_set_ts_ignore = bq256xx_set_ts_ignore, |
1465 | |
1466 | .bq256xx_def_ichg = BQ25611D_ICHG_DEF_uA, |
1467 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1468 | .bq256xx_def_vbatreg = BQ25611D_VBATREG_DEF_uV, |
1469 | .bq256xx_def_iterm = BQ256XX_ITERM_DEF_uA, |
1470 | .bq256xx_def_iprechg = BQ256XX_IPRECHG_DEF_uA, |
1471 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1472 | |
1473 | .bq256xx_max_ichg = BQ256XX_ICHG_MAX_uA, |
1474 | .bq256xx_max_vbatreg = BQ25611D_VBATREG_MAX_uV, |
1475 | |
1476 | .has_usb_detect = true, |
1477 | }, |
1478 | |
1479 | [BQ25618] = { |
1480 | .model_id = BQ25618, |
1481 | .bq256xx_regmap_config = &bq25618_619_regmap_config, |
1482 | .bq256xx_get_ichg = bq25618_619_get_ichg_curr, |
1483 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1484 | .bq256xx_get_vbatreg = bq25618_619_get_chrg_volt, |
1485 | .bq256xx_get_iterm = bq25618_619_get_term_curr, |
1486 | .bq256xx_get_iprechg = bq25618_619_get_prechrg_curr, |
1487 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1488 | |
1489 | .bq256xx_set_ichg = bq25618_619_set_ichg_curr, |
1490 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1491 | .bq256xx_set_vbatreg = bq25618_619_set_chrg_volt, |
1492 | .bq256xx_set_iterm = bq25618_619_set_term_curr, |
1493 | .bq256xx_set_iprechg = bq25618_619_set_prechrg_curr, |
1494 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1495 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1496 | .bq256xx_set_ts_ignore = bq256xx_set_ts_ignore, |
1497 | |
1498 | .bq256xx_def_ichg = BQ25618_ICHG_DEF_uA, |
1499 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1500 | .bq256xx_def_vbatreg = BQ25618_VBATREG_DEF_uV, |
1501 | .bq256xx_def_iterm = BQ25618_ITERM_DEF_uA, |
1502 | .bq256xx_def_iprechg = BQ25618_IPRECHG_DEF_uA, |
1503 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1504 | |
1505 | .bq256xx_max_ichg = BQ25618_ICHG_MAX_uA, |
1506 | .bq256xx_max_vbatreg = BQ25618_VBATREG_MAX_uV, |
1507 | |
1508 | .has_usb_detect = false, |
1509 | }, |
1510 | |
1511 | [BQ25619] = { |
1512 | .model_id = BQ25619, |
1513 | .bq256xx_regmap_config = &bq25618_619_regmap_config, |
1514 | .bq256xx_get_ichg = bq25618_619_get_ichg_curr, |
1515 | .bq256xx_get_iindpm = bq256xx_get_input_curr_lim, |
1516 | .bq256xx_get_vbatreg = bq25618_619_get_chrg_volt, |
1517 | .bq256xx_get_iterm = bq25618_619_get_term_curr, |
1518 | .bq256xx_get_iprechg = bq25618_619_get_prechrg_curr, |
1519 | .bq256xx_get_vindpm = bq256xx_get_input_volt_lim, |
1520 | |
1521 | .bq256xx_set_ichg = bq25618_619_set_ichg_curr, |
1522 | .bq256xx_set_iindpm = bq256xx_set_input_curr_lim, |
1523 | .bq256xx_set_vbatreg = bq25618_619_set_chrg_volt, |
1524 | .bq256xx_set_iterm = bq25618_619_set_term_curr, |
1525 | .bq256xx_set_iprechg = bq25618_619_set_prechrg_curr, |
1526 | .bq256xx_set_vindpm = bq256xx_set_input_volt_lim, |
1527 | .bq256xx_set_charge_type = bq256xx_set_charge_type, |
1528 | .bq256xx_set_ts_ignore = bq256xx_set_ts_ignore, |
1529 | |
1530 | .bq256xx_def_ichg = BQ25618_ICHG_DEF_uA, |
1531 | .bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA, |
1532 | .bq256xx_def_vbatreg = BQ25618_VBATREG_DEF_uV, |
1533 | .bq256xx_def_iterm = BQ25618_ITERM_DEF_uA, |
1534 | .bq256xx_def_iprechg = BQ25618_IPRECHG_DEF_uA, |
1535 | .bq256xx_def_vindpm = BQ256XX_VINDPM_DEF_uV, |
1536 | |
1537 | .bq256xx_max_ichg = BQ25618_ICHG_MAX_uA, |
1538 | .bq256xx_max_vbatreg = BQ25618_VBATREG_MAX_uV, |
1539 | |
1540 | .has_usb_detect = false, |
1541 | }, |
1542 | }; |
1543 | |
1544 | static int bq256xx_power_supply_init(struct bq256xx_device *bq, |
1545 | struct power_supply_config *psy_cfg, struct device *dev) |
1546 | { |
1547 | bq->charger = devm_power_supply_register(parent: bq->dev, |
1548 | desc: &bq256xx_power_supply_desc, |
1549 | cfg: psy_cfg); |
1550 | if (IS_ERR(ptr: bq->charger)) { |
1551 | dev_err(dev, "power supply register charger failed\n" ); |
1552 | return PTR_ERR(ptr: bq->charger); |
1553 | } |
1554 | |
1555 | bq->battery = devm_power_supply_register(parent: bq->dev, |
1556 | desc: &bq256xx_battery_desc, |
1557 | cfg: psy_cfg); |
1558 | if (IS_ERR(ptr: bq->battery)) { |
1559 | dev_err(dev, "power supply register battery failed\n" ); |
1560 | return PTR_ERR(ptr: bq->battery); |
1561 | } |
1562 | return 0; |
1563 | } |
1564 | |
1565 | static int bq256xx_hw_init(struct bq256xx_device *bq) |
1566 | { |
1567 | struct power_supply_battery_info *bat_info; |
1568 | int wd_reg_val = BQ256XX_WATCHDOG_DIS; |
1569 | int ret = 0; |
1570 | int i; |
1571 | |
1572 | for (i = 0; i < BQ256XX_NUM_WD_VAL; i++) { |
1573 | if (bq->watchdog_timer == bq256xx_watchdog_time[i]) { |
1574 | wd_reg_val = i; |
1575 | break; |
1576 | } |
1577 | if (i + 1 < BQ256XX_NUM_WD_VAL && |
1578 | bq->watchdog_timer > bq256xx_watchdog_time[i] && |
1579 | bq->watchdog_timer < bq256xx_watchdog_time[i + 1]) |
1580 | wd_reg_val = i; |
1581 | } |
1582 | ret = regmap_update_bits(map: bq->regmap, BQ256XX_CHARGER_CONTROL_1, |
1583 | BQ256XX_WATCHDOG_MASK, val: wd_reg_val << |
1584 | BQ256XX_WDT_BIT_SHIFT); |
1585 | if (ret) |
1586 | return ret; |
1587 | |
1588 | ret = power_supply_get_battery_info(psy: bq->charger, info_out: &bat_info); |
1589 | if (ret == -ENOMEM) |
1590 | return ret; |
1591 | |
1592 | if (ret) { |
1593 | dev_warn(bq->dev, "battery info missing, default values will be applied\n" ); |
1594 | |
1595 | bat_info->constant_charge_current_max_ua = |
1596 | bq->chip_info->bq256xx_def_ichg; |
1597 | |
1598 | bat_info->constant_charge_voltage_max_uv = |
1599 | bq->chip_info->bq256xx_def_vbatreg; |
1600 | |
1601 | bat_info->precharge_current_ua = |
1602 | bq->chip_info->bq256xx_def_iprechg; |
1603 | |
1604 | bat_info->charge_term_current_ua = |
1605 | bq->chip_info->bq256xx_def_iterm; |
1606 | |
1607 | bq->init_data.ichg_max = |
1608 | bq->chip_info->bq256xx_max_ichg; |
1609 | |
1610 | bq->init_data.vbatreg_max = |
1611 | bq->chip_info->bq256xx_max_vbatreg; |
1612 | } else { |
1613 | bq->init_data.ichg_max = |
1614 | bat_info->constant_charge_current_max_ua; |
1615 | |
1616 | bq->init_data.vbatreg_max = |
1617 | bat_info->constant_charge_voltage_max_uv; |
1618 | } |
1619 | |
1620 | ret = bq->chip_info->bq256xx_set_vindpm(bq, bq->init_data.vindpm); |
1621 | if (ret) |
1622 | return ret; |
1623 | |
1624 | ret = bq->chip_info->bq256xx_set_iindpm(bq, bq->init_data.iindpm); |
1625 | if (ret) |
1626 | return ret; |
1627 | |
1628 | ret = bq->chip_info->bq256xx_set_ichg(bq, |
1629 | bq->chip_info->bq256xx_def_ichg); |
1630 | if (ret) |
1631 | return ret; |
1632 | |
1633 | ret = bq->chip_info->bq256xx_set_iprechg(bq, |
1634 | bat_info->precharge_current_ua); |
1635 | if (ret) |
1636 | return ret; |
1637 | |
1638 | ret = bq->chip_info->bq256xx_set_vbatreg(bq, |
1639 | bq->chip_info->bq256xx_def_vbatreg); |
1640 | if (ret) |
1641 | return ret; |
1642 | |
1643 | ret = bq->chip_info->bq256xx_set_iterm(bq, |
1644 | bat_info->charge_term_current_ua); |
1645 | if (ret) |
1646 | return ret; |
1647 | |
1648 | if (bq->chip_info->bq256xx_set_ts_ignore) { |
1649 | ret = bq->chip_info->bq256xx_set_ts_ignore(bq, bq->init_data.ts_ignore); |
1650 | if (ret) |
1651 | return ret; |
1652 | } |
1653 | |
1654 | power_supply_put_battery_info(psy: bq->charger, info: bat_info); |
1655 | |
1656 | return 0; |
1657 | } |
1658 | |
1659 | static int bq256xx_parse_dt(struct bq256xx_device *bq, |
1660 | struct power_supply_config *psy_cfg, struct device *dev) |
1661 | { |
1662 | int ret = 0; |
1663 | |
1664 | psy_cfg->drv_data = bq; |
1665 | psy_cfg->of_node = dev->of_node; |
1666 | |
1667 | ret = device_property_read_u32(dev: bq->dev, propname: "ti,watchdog-timeout-ms" , |
1668 | val: &bq->watchdog_timer); |
1669 | if (ret) |
1670 | bq->watchdog_timer = BQ256XX_WATCHDOG_DIS; |
1671 | |
1672 | if (bq->watchdog_timer > BQ256XX_WATCHDOG_MAX || |
1673 | bq->watchdog_timer < BQ256XX_WATCHDOG_DIS) |
1674 | return -EINVAL; |
1675 | |
1676 | ret = device_property_read_u32(dev: bq->dev, |
1677 | propname: "input-voltage-limit-microvolt" , |
1678 | val: &bq->init_data.vindpm); |
1679 | if (ret) |
1680 | bq->init_data.vindpm = bq->chip_info->bq256xx_def_vindpm; |
1681 | |
1682 | ret = device_property_read_u32(dev: bq->dev, |
1683 | propname: "input-current-limit-microamp" , |
1684 | val: &bq->init_data.iindpm); |
1685 | if (ret) |
1686 | bq->init_data.iindpm = bq->chip_info->bq256xx_def_iindpm; |
1687 | |
1688 | bq->init_data.ts_ignore = device_property_read_bool(dev: bq->dev, propname: "ti,no-thermistor" ); |
1689 | |
1690 | return 0; |
1691 | } |
1692 | |
1693 | static int bq256xx_probe(struct i2c_client *client) |
1694 | { |
1695 | const struct i2c_device_id *id = i2c_client_get_device_id(client); |
1696 | struct device *dev = &client->dev; |
1697 | struct bq256xx_device *bq; |
1698 | struct power_supply_config psy_cfg = { }; |
1699 | |
1700 | int ret; |
1701 | |
1702 | bq = devm_kzalloc(dev, size: sizeof(*bq), GFP_KERNEL); |
1703 | if (!bq) |
1704 | return -ENOMEM; |
1705 | |
1706 | bq->client = client; |
1707 | bq->dev = dev; |
1708 | bq->chip_info = i2c_get_match_data(client); |
1709 | |
1710 | mutex_init(&bq->lock); |
1711 | |
1712 | strscpy(bq->model_name, id->name, sizeof(bq->model_name)); |
1713 | |
1714 | bq->regmap = devm_regmap_init_i2c(client, |
1715 | bq->chip_info->bq256xx_regmap_config); |
1716 | |
1717 | if (IS_ERR(ptr: bq->regmap)) { |
1718 | dev_err(dev, "Failed to allocate register map\n" ); |
1719 | return PTR_ERR(ptr: bq->regmap); |
1720 | } |
1721 | |
1722 | i2c_set_clientdata(client, data: bq); |
1723 | |
1724 | ret = bq256xx_parse_dt(bq, psy_cfg: &psy_cfg, dev); |
1725 | if (ret) { |
1726 | dev_err(dev, "Failed to read device tree properties%d\n" , ret); |
1727 | return ret; |
1728 | } |
1729 | |
1730 | ret = devm_add_action_or_reset(dev, bq256xx_charger_reset, bq); |
1731 | if (ret) |
1732 | return ret; |
1733 | |
1734 | /* OTG reporting */ |
1735 | bq->usb2_phy = devm_usb_get_phy(dev, type: USB_PHY_TYPE_USB2); |
1736 | if (!IS_ERR_OR_NULL(ptr: bq->usb2_phy)) { |
1737 | INIT_WORK(&bq->usb_work, bq256xx_usb_work); |
1738 | bq->usb_nb.notifier_call = bq256xx_usb_notifier; |
1739 | usb_register_notifier(x: bq->usb2_phy, nb: &bq->usb_nb); |
1740 | } |
1741 | |
1742 | bq->usb3_phy = devm_usb_get_phy(dev, type: USB_PHY_TYPE_USB3); |
1743 | if (!IS_ERR_OR_NULL(ptr: bq->usb3_phy)) { |
1744 | INIT_WORK(&bq->usb_work, bq256xx_usb_work); |
1745 | bq->usb_nb.notifier_call = bq256xx_usb_notifier; |
1746 | usb_register_notifier(x: bq->usb3_phy, nb: &bq->usb_nb); |
1747 | } |
1748 | |
1749 | if (client->irq) { |
1750 | ret = devm_request_threaded_irq(dev, irq: client->irq, NULL, |
1751 | thread_fn: bq256xx_irq_handler_thread, |
1752 | IRQF_TRIGGER_FALLING | |
1753 | IRQF_ONESHOT, |
1754 | devname: dev_name(dev: &client->dev), dev_id: bq); |
1755 | if (ret < 0) { |
1756 | dev_err(dev, "get irq fail: %d\n" , ret); |
1757 | return ret; |
1758 | } |
1759 | } |
1760 | |
1761 | ret = bq256xx_power_supply_init(bq, psy_cfg: &psy_cfg, dev); |
1762 | if (ret) { |
1763 | dev_err(dev, "Failed to register power supply\n" ); |
1764 | return ret; |
1765 | } |
1766 | |
1767 | ret = bq256xx_hw_init(bq); |
1768 | if (ret) { |
1769 | dev_err(dev, "Cannot initialize the chip.\n" ); |
1770 | return ret; |
1771 | } |
1772 | |
1773 | return ret; |
1774 | } |
1775 | |
1776 | static const struct i2c_device_id bq256xx_i2c_ids[] = { |
1777 | { "bq25600" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25600] }, |
1778 | { "bq25600d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25600D] }, |
1779 | { "bq25601" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25601] }, |
1780 | { "bq25601d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25601D] }, |
1781 | { "bq25611d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25611D] }, |
1782 | { "bq25618" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25618] }, |
1783 | { "bq25619" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25619] }, |
1784 | {} |
1785 | }; |
1786 | MODULE_DEVICE_TABLE(i2c, bq256xx_i2c_ids); |
1787 | |
1788 | static const struct of_device_id bq256xx_of_match[] = { |
1789 | { .compatible = "ti,bq25600" , .data = &bq256xx_chip_info_tbl[BQ25600] }, |
1790 | { .compatible = "ti,bq25600d" , .data = &bq256xx_chip_info_tbl[BQ25600D] }, |
1791 | { .compatible = "ti,bq25601" , .data = &bq256xx_chip_info_tbl[BQ25601] }, |
1792 | { .compatible = "ti,bq25601d" , .data = &bq256xx_chip_info_tbl[BQ25601D] }, |
1793 | { .compatible = "ti,bq25611d" , .data = &bq256xx_chip_info_tbl[BQ25611D] }, |
1794 | { .compatible = "ti,bq25618" , .data = &bq256xx_chip_info_tbl[BQ25618] }, |
1795 | { .compatible = "ti,bq25619" , .data = &bq256xx_chip_info_tbl[BQ25619] }, |
1796 | {} |
1797 | }; |
1798 | MODULE_DEVICE_TABLE(of, bq256xx_of_match); |
1799 | |
1800 | static const struct acpi_device_id bq256xx_acpi_match[] = { |
1801 | { "bq25600" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25600] }, |
1802 | { "bq25600d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25600D] }, |
1803 | { "bq25601" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25601] }, |
1804 | { "bq25601d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25601D] }, |
1805 | { "bq25611d" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25611D] }, |
1806 | { "bq25618" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25618] }, |
1807 | { "bq25619" , (kernel_ulong_t)&bq256xx_chip_info_tbl[BQ25619] }, |
1808 | {} |
1809 | }; |
1810 | MODULE_DEVICE_TABLE(acpi, bq256xx_acpi_match); |
1811 | |
1812 | static struct i2c_driver bq256xx_driver = { |
1813 | .driver = { |
1814 | .name = "bq256xx-charger" , |
1815 | .of_match_table = bq256xx_of_match, |
1816 | .acpi_match_table = bq256xx_acpi_match, |
1817 | }, |
1818 | .probe = bq256xx_probe, |
1819 | .id_table = bq256xx_i2c_ids, |
1820 | }; |
1821 | module_i2c_driver(bq256xx_driver); |
1822 | |
1823 | MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-matos@ti.com>" ); |
1824 | MODULE_DESCRIPTION("bq256xx charger driver" ); |
1825 | MODULE_LICENSE("GPL v2" ); |
1826 | |