1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Driver for the TI bq24190 battery charger. |
4 | * |
5 | * Author: Mark A. Greer <mgreer@animalcreek.com> |
6 | */ |
7 | |
8 | #include <linux/mod_devicetable.h> |
9 | #include <linux/module.h> |
10 | #include <linux/interrupt.h> |
11 | #include <linux/delay.h> |
12 | #include <linux/pm_runtime.h> |
13 | #include <linux/power_supply.h> |
14 | #include <linux/power/bq24190_charger.h> |
15 | #include <linux/regulator/driver.h> |
16 | #include <linux/regulator/machine.h> |
17 | #include <linux/workqueue.h> |
18 | #include <linux/i2c.h> |
19 | #include <linux/extcon-provider.h> |
20 | |
21 | #define BQ24190_MANUFACTURER "Texas Instruments" |
22 | |
23 | #define BQ24190_REG_ISC 0x00 /* Input Source Control */ |
24 | #define BQ24190_REG_ISC_EN_HIZ_MASK BIT(7) |
25 | #define BQ24190_REG_ISC_EN_HIZ_SHIFT 7 |
26 | #define BQ24190_REG_ISC_VINDPM_MASK (BIT(6) | BIT(5) | BIT(4) | \ |
27 | BIT(3)) |
28 | #define BQ24190_REG_ISC_VINDPM_SHIFT 3 |
29 | #define BQ24190_REG_ISC_IINLIM_MASK (BIT(2) | BIT(1) | BIT(0)) |
30 | #define BQ24190_REG_ISC_IINLIM_SHIFT 0 |
31 | |
32 | #define BQ24190_REG_POC 0x01 /* Power-On Configuration */ |
33 | #define BQ24190_REG_POC_RESET_MASK BIT(7) |
34 | #define BQ24190_REG_POC_RESET_SHIFT 7 |
35 | #define BQ24190_REG_POC_WDT_RESET_MASK BIT(6) |
36 | #define BQ24190_REG_POC_WDT_RESET_SHIFT 6 |
37 | #define BQ24190_REG_POC_CHG_CONFIG_MASK (BIT(5) | BIT(4)) |
38 | #define BQ24190_REG_POC_CHG_CONFIG_SHIFT 4 |
39 | #define BQ24190_REG_POC_CHG_CONFIG_DISABLE 0x0 |
40 | #define BQ24190_REG_POC_CHG_CONFIG_CHARGE 0x1 |
41 | #define BQ24190_REG_POC_CHG_CONFIG_OTG 0x2 |
42 | #define BQ24190_REG_POC_CHG_CONFIG_OTG_ALT 0x3 |
43 | #define BQ24190_REG_POC_SYS_MIN_MASK (BIT(3) | BIT(2) | BIT(1)) |
44 | #define BQ24190_REG_POC_SYS_MIN_SHIFT 1 |
45 | #define BQ24190_REG_POC_SYS_MIN_MIN 3000 |
46 | #define BQ24190_REG_POC_SYS_MIN_MAX 3700 |
47 | #define BQ24190_REG_POC_BOOST_LIM_MASK BIT(0) |
48 | #define BQ24190_REG_POC_BOOST_LIM_SHIFT 0 |
49 | |
50 | #define BQ24190_REG_CCC 0x02 /* Charge Current Control */ |
51 | #define BQ24190_REG_CCC_ICHG_MASK (BIT(7) | BIT(6) | BIT(5) | \ |
52 | BIT(4) | BIT(3) | BIT(2)) |
53 | #define BQ24190_REG_CCC_ICHG_SHIFT 2 |
54 | #define BQ24190_REG_CCC_FORCE_20PCT_MASK BIT(0) |
55 | #define BQ24190_REG_CCC_FORCE_20PCT_SHIFT 0 |
56 | |
57 | #define BQ24190_REG_PCTCC 0x03 /* Pre-charge/Termination Current Cntl */ |
58 | #define BQ24190_REG_PCTCC_IPRECHG_MASK (BIT(7) | BIT(6) | BIT(5) | \ |
59 | BIT(4)) |
60 | #define BQ24190_REG_PCTCC_IPRECHG_SHIFT 4 |
61 | #define BQ24190_REG_PCTCC_IPRECHG_MIN 128 |
62 | #define BQ24190_REG_PCTCC_IPRECHG_MAX 2048 |
63 | #define BQ24190_REG_PCTCC_ITERM_MASK (BIT(3) | BIT(2) | BIT(1) | \ |
64 | BIT(0)) |
65 | #define BQ24190_REG_PCTCC_ITERM_SHIFT 0 |
66 | #define BQ24190_REG_PCTCC_ITERM_MIN 128 |
67 | #define BQ24190_REG_PCTCC_ITERM_MAX 2048 |
68 | |
69 | #define BQ24190_REG_CVC 0x04 /* Charge Voltage Control */ |
70 | #define BQ24190_REG_CVC_VREG_MASK (BIT(7) | BIT(6) | BIT(5) | \ |
71 | BIT(4) | BIT(3) | BIT(2)) |
72 | #define BQ24190_REG_CVC_VREG_SHIFT 2 |
73 | #define BQ24190_REG_CVC_BATLOWV_MASK BIT(1) |
74 | #define BQ24190_REG_CVC_BATLOWV_SHIFT 1 |
75 | #define BQ24190_REG_CVC_VRECHG_MASK BIT(0) |
76 | #define BQ24190_REG_CVC_VRECHG_SHIFT 0 |
77 | |
78 | #define BQ24190_REG_CTTC 0x05 /* Charge Term/Timer Control */ |
79 | #define BQ24190_REG_CTTC_EN_TERM_MASK BIT(7) |
80 | #define BQ24190_REG_CTTC_EN_TERM_SHIFT 7 |
81 | #define BQ24190_REG_CTTC_TERM_STAT_MASK BIT(6) |
82 | #define BQ24190_REG_CTTC_TERM_STAT_SHIFT 6 |
83 | #define BQ24190_REG_CTTC_WATCHDOG_MASK (BIT(5) | BIT(4)) |
84 | #define BQ24190_REG_CTTC_WATCHDOG_SHIFT 4 |
85 | #define BQ24190_REG_CTTC_EN_TIMER_MASK BIT(3) |
86 | #define BQ24190_REG_CTTC_EN_TIMER_SHIFT 3 |
87 | #define BQ24190_REG_CTTC_CHG_TIMER_MASK (BIT(2) | BIT(1)) |
88 | #define BQ24190_REG_CTTC_CHG_TIMER_SHIFT 1 |
89 | #define BQ24190_REG_CTTC_JEITA_ISET_MASK BIT(0) |
90 | #define BQ24190_REG_CTTC_JEITA_ISET_SHIFT 0 |
91 | |
92 | #define BQ24190_REG_ICTRC 0x06 /* IR Comp/Thermal Regulation Control */ |
93 | #define BQ24190_REG_ICTRC_BAT_COMP_MASK (BIT(7) | BIT(6) | BIT(5)) |
94 | #define BQ24190_REG_ICTRC_BAT_COMP_SHIFT 5 |
95 | #define BQ24190_REG_ICTRC_VCLAMP_MASK (BIT(4) | BIT(3) | BIT(2)) |
96 | #define BQ24190_REG_ICTRC_VCLAMP_SHIFT 2 |
97 | #define BQ24190_REG_ICTRC_TREG_MASK (BIT(1) | BIT(0)) |
98 | #define BQ24190_REG_ICTRC_TREG_SHIFT 0 |
99 | |
100 | #define BQ24190_REG_MOC 0x07 /* Misc. Operation Control */ |
101 | #define BQ24190_REG_MOC_DPDM_EN_MASK BIT(7) |
102 | #define BQ24190_REG_MOC_DPDM_EN_SHIFT 7 |
103 | #define BQ24190_REG_MOC_TMR2X_EN_MASK BIT(6) |
104 | #define BQ24190_REG_MOC_TMR2X_EN_SHIFT 6 |
105 | #define BQ24190_REG_MOC_BATFET_DISABLE_MASK BIT(5) |
106 | #define BQ24190_REG_MOC_BATFET_DISABLE_SHIFT 5 |
107 | #define BQ24190_REG_MOC_JEITA_VSET_MASK BIT(4) |
108 | #define BQ24190_REG_MOC_JEITA_VSET_SHIFT 4 |
109 | #define BQ24190_REG_MOC_INT_MASK_MASK (BIT(1) | BIT(0)) |
110 | #define BQ24190_REG_MOC_INT_MASK_SHIFT 0 |
111 | |
112 | #define BQ24190_REG_SS 0x08 /* System Status */ |
113 | #define BQ24190_REG_SS_VBUS_STAT_MASK (BIT(7) | BIT(6)) |
114 | #define BQ24190_REG_SS_VBUS_STAT_SHIFT 6 |
115 | #define BQ24190_REG_SS_CHRG_STAT_MASK (BIT(5) | BIT(4)) |
116 | #define BQ24190_REG_SS_CHRG_STAT_SHIFT 4 |
117 | #define BQ24190_REG_SS_DPM_STAT_MASK BIT(3) |
118 | #define BQ24190_REG_SS_DPM_STAT_SHIFT 3 |
119 | #define BQ24190_REG_SS_PG_STAT_MASK BIT(2) |
120 | #define BQ24190_REG_SS_PG_STAT_SHIFT 2 |
121 | #define BQ24190_REG_SS_THERM_STAT_MASK BIT(1) |
122 | #define BQ24190_REG_SS_THERM_STAT_SHIFT 1 |
123 | #define BQ24190_REG_SS_VSYS_STAT_MASK BIT(0) |
124 | #define BQ24190_REG_SS_VSYS_STAT_SHIFT 0 |
125 | |
126 | #define BQ24190_REG_F 0x09 /* Fault */ |
127 | #define BQ24190_REG_F_WATCHDOG_FAULT_MASK BIT(7) |
128 | #define BQ24190_REG_F_WATCHDOG_FAULT_SHIFT 7 |
129 | #define BQ24190_REG_F_BOOST_FAULT_MASK BIT(6) |
130 | #define BQ24190_REG_F_BOOST_FAULT_SHIFT 6 |
131 | #define BQ24190_REG_F_CHRG_FAULT_MASK (BIT(5) | BIT(4)) |
132 | #define BQ24190_REG_F_CHRG_FAULT_SHIFT 4 |
133 | #define BQ24190_REG_F_BAT_FAULT_MASK BIT(3) |
134 | #define BQ24190_REG_F_BAT_FAULT_SHIFT 3 |
135 | #define BQ24190_REG_F_NTC_FAULT_MASK (BIT(2) | BIT(1) | BIT(0)) |
136 | #define BQ24190_REG_F_NTC_FAULT_SHIFT 0 |
137 | |
138 | #define BQ24190_REG_VPRS 0x0A /* Vendor/Part/Revision Status */ |
139 | #define BQ24190_REG_VPRS_PN_MASK (BIT(5) | BIT(4) | BIT(3)) |
140 | #define BQ24190_REG_VPRS_PN_SHIFT 3 |
141 | #define BQ24190_REG_VPRS_PN_24190 0x4 |
142 | #define BQ24190_REG_VPRS_PN_24192 0x5 /* Also 24193, 24196 */ |
143 | #define BQ24190_REG_VPRS_PN_24192I 0x3 |
144 | #define BQ24190_REG_VPRS_TS_PROFILE_MASK BIT(2) |
145 | #define BQ24190_REG_VPRS_TS_PROFILE_SHIFT 2 |
146 | #define BQ24190_REG_VPRS_DEV_REG_MASK (BIT(1) | BIT(0)) |
147 | #define BQ24190_REG_VPRS_DEV_REG_SHIFT 0 |
148 | |
149 | /* |
150 | * The FAULT register is latched by the bq24190 (except for NTC_FAULT) |
151 | * so the first read after a fault returns the latched value and subsequent |
152 | * reads return the current value. In order to return the fault status |
153 | * to the user, have the interrupt handler save the reg's value and retrieve |
154 | * it in the appropriate health/status routine. |
155 | */ |
156 | struct bq24190_dev_info { |
157 | struct i2c_client *client; |
158 | struct device *dev; |
159 | struct extcon_dev *edev; |
160 | struct power_supply *charger; |
161 | struct power_supply *battery; |
162 | struct delayed_work input_current_limit_work; |
163 | char model_name[I2C_NAME_SIZE]; |
164 | bool initialized; |
165 | bool irq_event; |
166 | bool otg_vbus_enabled; |
167 | int charge_type; |
168 | u16 sys_min; |
169 | u16 iprechg; |
170 | u16 iterm; |
171 | u32 ichg; |
172 | u32 ichg_max; |
173 | u32 vreg; |
174 | u32 vreg_max; |
175 | struct mutex f_reg_lock; |
176 | u8 f_reg; |
177 | u8 ss_reg; |
178 | u8 watchdog; |
179 | }; |
180 | |
181 | static int bq24190_charger_set_charge_type(struct bq24190_dev_info *bdi, |
182 | const union power_supply_propval *val); |
183 | |
184 | static const unsigned int bq24190_usb_extcon_cable[] = { |
185 | EXTCON_USB, |
186 | EXTCON_NONE, |
187 | }; |
188 | |
189 | /* |
190 | * The tables below provide a 2-way mapping for the value that goes in |
191 | * the register field and the real-world value that it represents. |
192 | * The index of the array is the value that goes in the register; the |
193 | * number at that index in the array is the real-world value that it |
194 | * represents. |
195 | */ |
196 | |
197 | /* REG00[2:0] (IINLIM) in uAh */ |
198 | static const int bq24190_isc_iinlim_values[] = { |
199 | 100000, 150000, 500000, 900000, 1200000, 1500000, 2000000, 3000000 |
200 | }; |
201 | |
202 | /* REG02[7:2] (ICHG) in uAh */ |
203 | static const int bq24190_ccc_ichg_values[] = { |
204 | 512000, 576000, 640000, 704000, 768000, 832000, 896000, 960000, |
205 | 1024000, 1088000, 1152000, 1216000, 1280000, 1344000, 1408000, 1472000, |
206 | 1536000, 1600000, 1664000, 1728000, 1792000, 1856000, 1920000, 1984000, |
207 | 2048000, 2112000, 2176000, 2240000, 2304000, 2368000, 2432000, 2496000, |
208 | 2560000, 2624000, 2688000, 2752000, 2816000, 2880000, 2944000, 3008000, |
209 | 3072000, 3136000, 3200000, 3264000, 3328000, 3392000, 3456000, 3520000, |
210 | 3584000, 3648000, 3712000, 3776000, 3840000, 3904000, 3968000, 4032000, |
211 | 4096000, 4160000, 4224000, 4288000, 4352000, 4416000, 4480000, 4544000 |
212 | }; |
213 | |
214 | /* REG04[7:2] (VREG) in uV */ |
215 | static const int bq24190_cvc_vreg_values[] = { |
216 | 3504000, 3520000, 3536000, 3552000, 3568000, 3584000, 3600000, 3616000, |
217 | 3632000, 3648000, 3664000, 3680000, 3696000, 3712000, 3728000, 3744000, |
218 | 3760000, 3776000, 3792000, 3808000, 3824000, 3840000, 3856000, 3872000, |
219 | 3888000, 3904000, 3920000, 3936000, 3952000, 3968000, 3984000, 4000000, |
220 | 4016000, 4032000, 4048000, 4064000, 4080000, 4096000, 4112000, 4128000, |
221 | 4144000, 4160000, 4176000, 4192000, 4208000, 4224000, 4240000, 4256000, |
222 | 4272000, 4288000, 4304000, 4320000, 4336000, 4352000, 4368000, 4384000, |
223 | 4400000 |
224 | }; |
225 | |
226 | /* REG06[1:0] (TREG) in tenths of degrees Celsius */ |
227 | static const int bq24190_ictrc_treg_values[] = { |
228 | 600, 800, 1000, 1200 |
229 | }; |
230 | |
231 | /* |
232 | * Return the index in 'tbl' of greatest value that is less than or equal to |
233 | * 'val'. The index range returned is 0 to 'tbl_size' - 1. Assumes that |
234 | * the values in 'tbl' are sorted from smallest to largest and 'tbl_size' |
235 | * is less than 2^8. |
236 | */ |
237 | static u8 bq24190_find_idx(const int tbl[], int tbl_size, int v) |
238 | { |
239 | int i; |
240 | |
241 | for (i = 1; i < tbl_size; i++) |
242 | if (v < tbl[i]) |
243 | break; |
244 | |
245 | return i - 1; |
246 | } |
247 | |
248 | /* Basic driver I/O routines */ |
249 | |
250 | static int bq24190_read(struct bq24190_dev_info *bdi, u8 reg, u8 *data) |
251 | { |
252 | int ret; |
253 | |
254 | ret = i2c_smbus_read_byte_data(client: bdi->client, command: reg); |
255 | if (ret < 0) |
256 | return ret; |
257 | |
258 | *data = ret; |
259 | return 0; |
260 | } |
261 | |
262 | static int bq24190_write(struct bq24190_dev_info *bdi, u8 reg, u8 data) |
263 | { |
264 | return i2c_smbus_write_byte_data(client: bdi->client, command: reg, value: data); |
265 | } |
266 | |
267 | static int bq24190_read_mask(struct bq24190_dev_info *bdi, u8 reg, |
268 | u8 mask, u8 shift, u8 *data) |
269 | { |
270 | u8 v; |
271 | int ret; |
272 | |
273 | ret = bq24190_read(bdi, reg, data: &v); |
274 | if (ret < 0) |
275 | return ret; |
276 | |
277 | v &= mask; |
278 | v >>= shift; |
279 | *data = v; |
280 | |
281 | return 0; |
282 | } |
283 | |
284 | static int bq24190_write_mask(struct bq24190_dev_info *bdi, u8 reg, |
285 | u8 mask, u8 shift, u8 data) |
286 | { |
287 | u8 v; |
288 | int ret; |
289 | |
290 | ret = bq24190_read(bdi, reg, data: &v); |
291 | if (ret < 0) |
292 | return ret; |
293 | |
294 | v &= ~mask; |
295 | v |= ((data << shift) & mask); |
296 | |
297 | return bq24190_write(bdi, reg, data: v); |
298 | } |
299 | |
300 | static int bq24190_get_field_val(struct bq24190_dev_info *bdi, |
301 | u8 reg, u8 mask, u8 shift, |
302 | const int tbl[], int tbl_size, |
303 | int *val) |
304 | { |
305 | u8 v; |
306 | int ret; |
307 | |
308 | ret = bq24190_read_mask(bdi, reg, mask, shift, data: &v); |
309 | if (ret < 0) |
310 | return ret; |
311 | |
312 | v = (v >= tbl_size) ? (tbl_size - 1) : v; |
313 | *val = tbl[v]; |
314 | |
315 | return 0; |
316 | } |
317 | |
318 | static int bq24190_set_field_val(struct bq24190_dev_info *bdi, |
319 | u8 reg, u8 mask, u8 shift, |
320 | const int tbl[], int tbl_size, |
321 | int val) |
322 | { |
323 | u8 idx; |
324 | |
325 | idx = bq24190_find_idx(tbl, tbl_size, v: val); |
326 | |
327 | return bq24190_write_mask(bdi, reg, mask, shift, data: idx); |
328 | } |
329 | |
330 | #ifdef CONFIG_SYSFS |
331 | /* |
332 | * There are a numerous options that are configurable on the bq24190 |
333 | * that go well beyond what the power_supply properties provide access to. |
334 | * Provide sysfs access to them so they can be examined and possibly modified |
335 | * on the fly. They will be provided for the charger power_supply object only |
336 | * and will be prefixed by 'f_' to make them easier to recognize. |
337 | */ |
338 | |
339 | #define BQ24190_SYSFS_FIELD(_name, r, f, m, store) \ |
340 | { \ |
341 | .attr = __ATTR(f_##_name, m, bq24190_sysfs_show, store), \ |
342 | .reg = BQ24190_REG_##r, \ |
343 | .mask = BQ24190_REG_##r##_##f##_MASK, \ |
344 | .shift = BQ24190_REG_##r##_##f##_SHIFT, \ |
345 | } |
346 | |
347 | #define BQ24190_SYSFS_FIELD_RW(_name, r, f) \ |
348 | BQ24190_SYSFS_FIELD(_name, r, f, S_IWUSR | S_IRUGO, \ |
349 | bq24190_sysfs_store) |
350 | |
351 | #define BQ24190_SYSFS_FIELD_RO(_name, r, f) \ |
352 | BQ24190_SYSFS_FIELD(_name, r, f, S_IRUGO, NULL) |
353 | |
354 | static ssize_t bq24190_sysfs_show(struct device *dev, |
355 | struct device_attribute *attr, char *buf); |
356 | static ssize_t bq24190_sysfs_store(struct device *dev, |
357 | struct device_attribute *attr, const char *buf, size_t count); |
358 | |
359 | struct bq24190_sysfs_field_info { |
360 | struct device_attribute attr; |
361 | u8 reg; |
362 | u8 mask; |
363 | u8 shift; |
364 | }; |
365 | |
366 | /* On i386 ptrace-abi.h defines SS that breaks the macro calls below. */ |
367 | #undef SS |
368 | |
369 | static struct bq24190_sysfs_field_info bq24190_sysfs_field_tbl[] = { |
370 | /* sysfs name reg field in reg */ |
371 | BQ24190_SYSFS_FIELD_RW(en_hiz, ISC, EN_HIZ), |
372 | BQ24190_SYSFS_FIELD_RW(vindpm, ISC, VINDPM), |
373 | BQ24190_SYSFS_FIELD_RW(iinlim, ISC, IINLIM), |
374 | BQ24190_SYSFS_FIELD_RW(chg_config, POC, CHG_CONFIG), |
375 | BQ24190_SYSFS_FIELD_RW(sys_min, POC, SYS_MIN), |
376 | BQ24190_SYSFS_FIELD_RW(boost_lim, POC, BOOST_LIM), |
377 | BQ24190_SYSFS_FIELD_RW(ichg, CCC, ICHG), |
378 | BQ24190_SYSFS_FIELD_RW(force_20_pct, CCC, FORCE_20PCT), |
379 | BQ24190_SYSFS_FIELD_RW(iprechg, PCTCC, IPRECHG), |
380 | BQ24190_SYSFS_FIELD_RW(iterm, PCTCC, ITERM), |
381 | BQ24190_SYSFS_FIELD_RW(vreg, CVC, VREG), |
382 | BQ24190_SYSFS_FIELD_RW(batlowv, CVC, BATLOWV), |
383 | BQ24190_SYSFS_FIELD_RW(vrechg, CVC, VRECHG), |
384 | BQ24190_SYSFS_FIELD_RW(en_term, CTTC, EN_TERM), |
385 | BQ24190_SYSFS_FIELD_RW(term_stat, CTTC, TERM_STAT), |
386 | BQ24190_SYSFS_FIELD_RO(watchdog, CTTC, WATCHDOG), |
387 | BQ24190_SYSFS_FIELD_RW(en_timer, CTTC, EN_TIMER), |
388 | BQ24190_SYSFS_FIELD_RW(chg_timer, CTTC, CHG_TIMER), |
389 | BQ24190_SYSFS_FIELD_RW(jeta_iset, CTTC, JEITA_ISET), |
390 | BQ24190_SYSFS_FIELD_RW(bat_comp, ICTRC, BAT_COMP), |
391 | BQ24190_SYSFS_FIELD_RW(vclamp, ICTRC, VCLAMP), |
392 | BQ24190_SYSFS_FIELD_RW(treg, ICTRC, TREG), |
393 | BQ24190_SYSFS_FIELD_RW(dpdm_en, MOC, DPDM_EN), |
394 | BQ24190_SYSFS_FIELD_RW(tmr2x_en, MOC, TMR2X_EN), |
395 | BQ24190_SYSFS_FIELD_RW(batfet_disable, MOC, BATFET_DISABLE), |
396 | BQ24190_SYSFS_FIELD_RW(jeita_vset, MOC, JEITA_VSET), |
397 | BQ24190_SYSFS_FIELD_RO(int_mask, MOC, INT_MASK), |
398 | BQ24190_SYSFS_FIELD_RO(vbus_stat, SS, VBUS_STAT), |
399 | BQ24190_SYSFS_FIELD_RO(chrg_stat, SS, CHRG_STAT), |
400 | BQ24190_SYSFS_FIELD_RO(dpm_stat, SS, DPM_STAT), |
401 | BQ24190_SYSFS_FIELD_RO(pg_stat, SS, PG_STAT), |
402 | BQ24190_SYSFS_FIELD_RO(therm_stat, SS, THERM_STAT), |
403 | BQ24190_SYSFS_FIELD_RO(vsys_stat, SS, VSYS_STAT), |
404 | BQ24190_SYSFS_FIELD_RO(watchdog_fault, F, WATCHDOG_FAULT), |
405 | BQ24190_SYSFS_FIELD_RO(boost_fault, F, BOOST_FAULT), |
406 | BQ24190_SYSFS_FIELD_RO(chrg_fault, F, CHRG_FAULT), |
407 | BQ24190_SYSFS_FIELD_RO(bat_fault, F, BAT_FAULT), |
408 | BQ24190_SYSFS_FIELD_RO(ntc_fault, F, NTC_FAULT), |
409 | BQ24190_SYSFS_FIELD_RO(pn, VPRS, PN), |
410 | BQ24190_SYSFS_FIELD_RO(ts_profile, VPRS, TS_PROFILE), |
411 | BQ24190_SYSFS_FIELD_RO(dev_reg, VPRS, DEV_REG), |
412 | }; |
413 | |
414 | static struct attribute * |
415 | bq24190_sysfs_attrs[ARRAY_SIZE(bq24190_sysfs_field_tbl) + 1]; |
416 | |
417 | ATTRIBUTE_GROUPS(bq24190_sysfs); |
418 | |
419 | static void bq24190_sysfs_init_attrs(void) |
420 | { |
421 | int i, limit = ARRAY_SIZE(bq24190_sysfs_field_tbl); |
422 | |
423 | for (i = 0; i < limit; i++) |
424 | bq24190_sysfs_attrs[i] = &bq24190_sysfs_field_tbl[i].attr.attr; |
425 | |
426 | bq24190_sysfs_attrs[limit] = NULL; /* Has additional entry for this */ |
427 | } |
428 | |
429 | static struct bq24190_sysfs_field_info *bq24190_sysfs_field_lookup( |
430 | const char *name) |
431 | { |
432 | int i, limit = ARRAY_SIZE(bq24190_sysfs_field_tbl); |
433 | |
434 | for (i = 0; i < limit; i++) |
435 | if (!strcmp(name, bq24190_sysfs_field_tbl[i].attr.attr.name)) |
436 | break; |
437 | |
438 | if (i >= limit) |
439 | return NULL; |
440 | |
441 | return &bq24190_sysfs_field_tbl[i]; |
442 | } |
443 | |
444 | static ssize_t bq24190_sysfs_show(struct device *dev, |
445 | struct device_attribute *attr, char *buf) |
446 | { |
447 | struct power_supply *psy = dev_get_drvdata(dev); |
448 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
449 | struct bq24190_sysfs_field_info *info; |
450 | ssize_t count; |
451 | int ret; |
452 | u8 v; |
453 | |
454 | info = bq24190_sysfs_field_lookup(name: attr->attr.name); |
455 | if (!info) |
456 | return -EINVAL; |
457 | |
458 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
459 | if (ret < 0) |
460 | return ret; |
461 | |
462 | ret = bq24190_read_mask(bdi, reg: info->reg, mask: info->mask, shift: info->shift, data: &v); |
463 | if (ret) |
464 | count = ret; |
465 | else |
466 | count = sysfs_emit(buf, fmt: "%hhx\n" , v); |
467 | |
468 | pm_runtime_mark_last_busy(dev: bdi->dev); |
469 | pm_runtime_put_autosuspend(dev: bdi->dev); |
470 | |
471 | return count; |
472 | } |
473 | |
474 | static ssize_t bq24190_sysfs_store(struct device *dev, |
475 | struct device_attribute *attr, const char *buf, size_t count) |
476 | { |
477 | struct power_supply *psy = dev_get_drvdata(dev); |
478 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
479 | struct bq24190_sysfs_field_info *info; |
480 | int ret; |
481 | u8 v; |
482 | |
483 | info = bq24190_sysfs_field_lookup(name: attr->attr.name); |
484 | if (!info) |
485 | return -EINVAL; |
486 | |
487 | ret = kstrtou8(s: buf, base: 0, res: &v); |
488 | if (ret < 0) |
489 | return ret; |
490 | |
491 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
492 | if (ret < 0) |
493 | return ret; |
494 | |
495 | ret = bq24190_write_mask(bdi, reg: info->reg, mask: info->mask, shift: info->shift, data: v); |
496 | if (ret) |
497 | count = ret; |
498 | |
499 | pm_runtime_mark_last_busy(dev: bdi->dev); |
500 | pm_runtime_put_autosuspend(dev: bdi->dev); |
501 | |
502 | return count; |
503 | } |
504 | #endif |
505 | |
506 | static int bq24190_set_otg_vbus(struct bq24190_dev_info *bdi, bool enable) |
507 | { |
508 | union power_supply_propval val = { .intval = bdi->charge_type }; |
509 | int ret; |
510 | |
511 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
512 | if (ret < 0) { |
513 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , ret); |
514 | return ret; |
515 | } |
516 | |
517 | bdi->otg_vbus_enabled = enable; |
518 | if (enable) |
519 | ret = bq24190_write_mask(bdi, BQ24190_REG_POC, |
520 | BQ24190_REG_POC_CHG_CONFIG_MASK, |
521 | BQ24190_REG_POC_CHG_CONFIG_SHIFT, |
522 | BQ24190_REG_POC_CHG_CONFIG_OTG); |
523 | else |
524 | ret = bq24190_charger_set_charge_type(bdi, val: &val); |
525 | |
526 | pm_runtime_mark_last_busy(dev: bdi->dev); |
527 | pm_runtime_put_autosuspend(dev: bdi->dev); |
528 | |
529 | return ret; |
530 | } |
531 | |
532 | #ifdef CONFIG_REGULATOR |
533 | static int bq24190_vbus_enable(struct regulator_dev *dev) |
534 | { |
535 | return bq24190_set_otg_vbus(bdi: rdev_get_drvdata(rdev: dev), enable: true); |
536 | } |
537 | |
538 | static int bq24190_vbus_disable(struct regulator_dev *dev) |
539 | { |
540 | return bq24190_set_otg_vbus(bdi: rdev_get_drvdata(rdev: dev), enable: false); |
541 | } |
542 | |
543 | static int bq24190_vbus_is_enabled(struct regulator_dev *dev) |
544 | { |
545 | struct bq24190_dev_info *bdi = rdev_get_drvdata(rdev: dev); |
546 | int ret; |
547 | u8 val; |
548 | |
549 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
550 | if (ret < 0) { |
551 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , ret); |
552 | return ret; |
553 | } |
554 | |
555 | ret = bq24190_read_mask(bdi, BQ24190_REG_POC, |
556 | BQ24190_REG_POC_CHG_CONFIG_MASK, |
557 | BQ24190_REG_POC_CHG_CONFIG_SHIFT, data: &val); |
558 | |
559 | pm_runtime_mark_last_busy(dev: bdi->dev); |
560 | pm_runtime_put_autosuspend(dev: bdi->dev); |
561 | |
562 | if (ret) |
563 | return ret; |
564 | |
565 | bdi->otg_vbus_enabled = (val == BQ24190_REG_POC_CHG_CONFIG_OTG || |
566 | val == BQ24190_REG_POC_CHG_CONFIG_OTG_ALT); |
567 | return bdi->otg_vbus_enabled; |
568 | } |
569 | |
570 | static const struct regulator_ops bq24190_vbus_ops = { |
571 | .enable = bq24190_vbus_enable, |
572 | .disable = bq24190_vbus_disable, |
573 | .is_enabled = bq24190_vbus_is_enabled, |
574 | }; |
575 | |
576 | static const struct regulator_desc bq24190_vbus_desc = { |
577 | .name = "usb_otg_vbus" , |
578 | .of_match = "usb-otg-vbus" , |
579 | .type = REGULATOR_VOLTAGE, |
580 | .owner = THIS_MODULE, |
581 | .ops = &bq24190_vbus_ops, |
582 | .fixed_uV = 5000000, |
583 | .n_voltages = 1, |
584 | }; |
585 | |
586 | static const struct regulator_init_data bq24190_vbus_init_data = { |
587 | .constraints = { |
588 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, |
589 | }, |
590 | }; |
591 | |
592 | static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi) |
593 | { |
594 | struct bq24190_platform_data *pdata = bdi->dev->platform_data; |
595 | struct regulator_config cfg = { }; |
596 | struct regulator_dev *reg; |
597 | int ret = 0; |
598 | |
599 | cfg.dev = bdi->dev; |
600 | if (pdata && pdata->regulator_init_data) |
601 | cfg.init_data = pdata->regulator_init_data; |
602 | else |
603 | cfg.init_data = &bq24190_vbus_init_data; |
604 | cfg.driver_data = bdi; |
605 | reg = devm_regulator_register(dev: bdi->dev, regulator_desc: &bq24190_vbus_desc, config: &cfg); |
606 | if (IS_ERR(ptr: reg)) { |
607 | ret = PTR_ERR(ptr: reg); |
608 | dev_err(bdi->dev, "Can't register regulator: %d\n" , ret); |
609 | } |
610 | |
611 | return ret; |
612 | } |
613 | #else |
614 | static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi) |
615 | { |
616 | return 0; |
617 | } |
618 | #endif |
619 | |
620 | static int bq24190_set_config(struct bq24190_dev_info *bdi) |
621 | { |
622 | int ret; |
623 | u8 v; |
624 | |
625 | ret = bq24190_read(bdi, BQ24190_REG_CTTC, data: &v); |
626 | if (ret < 0) |
627 | return ret; |
628 | |
629 | bdi->watchdog = ((v & BQ24190_REG_CTTC_WATCHDOG_MASK) >> |
630 | BQ24190_REG_CTTC_WATCHDOG_SHIFT); |
631 | |
632 | /* |
633 | * According to the "Host Mode and default Mode" section of the |
634 | * manual, a write to any register causes the bq24190 to switch |
635 | * from default mode to host mode. It will switch back to default |
636 | * mode after a WDT timeout unless the WDT is turned off as well. |
637 | * So, by simply turning off the WDT, we accomplish both with the |
638 | * same write. |
639 | */ |
640 | v &= ~BQ24190_REG_CTTC_WATCHDOG_MASK; |
641 | |
642 | ret = bq24190_write(bdi, BQ24190_REG_CTTC, data: v); |
643 | if (ret < 0) |
644 | return ret; |
645 | |
646 | if (bdi->sys_min) { |
647 | v = bdi->sys_min / 100 - 30; // manual section 9.5.1.2, table 9 |
648 | ret = bq24190_write_mask(bdi, BQ24190_REG_POC, |
649 | BQ24190_REG_POC_SYS_MIN_MASK, |
650 | BQ24190_REG_POC_SYS_MIN_SHIFT, |
651 | data: v); |
652 | if (ret < 0) |
653 | return ret; |
654 | } |
655 | |
656 | if (bdi->iprechg) { |
657 | v = bdi->iprechg / 128 - 1; // manual section 9.5.1.4, table 11 |
658 | ret = bq24190_write_mask(bdi, BQ24190_REG_PCTCC, |
659 | BQ24190_REG_PCTCC_IPRECHG_MASK, |
660 | BQ24190_REG_PCTCC_IPRECHG_SHIFT, |
661 | data: v); |
662 | if (ret < 0) |
663 | return ret; |
664 | } |
665 | |
666 | if (bdi->iterm) { |
667 | v = bdi->iterm / 128 - 1; // manual section 9.5.1.4, table 11 |
668 | ret = bq24190_write_mask(bdi, BQ24190_REG_PCTCC, |
669 | BQ24190_REG_PCTCC_ITERM_MASK, |
670 | BQ24190_REG_PCTCC_ITERM_SHIFT, |
671 | data: v); |
672 | if (ret < 0) |
673 | return ret; |
674 | } |
675 | |
676 | if (bdi->ichg) { |
677 | ret = bq24190_set_field_val(bdi, BQ24190_REG_CCC, |
678 | BQ24190_REG_CCC_ICHG_MASK, |
679 | BQ24190_REG_CCC_ICHG_SHIFT, |
680 | tbl: bq24190_ccc_ichg_values, |
681 | ARRAY_SIZE(bq24190_ccc_ichg_values), |
682 | val: bdi->ichg); |
683 | if (ret < 0) |
684 | return ret; |
685 | } |
686 | |
687 | if (bdi->vreg) { |
688 | ret = bq24190_set_field_val(bdi, BQ24190_REG_CVC, |
689 | BQ24190_REG_CVC_VREG_MASK, |
690 | BQ24190_REG_CVC_VREG_SHIFT, |
691 | tbl: bq24190_cvc_vreg_values, |
692 | ARRAY_SIZE(bq24190_cvc_vreg_values), |
693 | val: bdi->vreg); |
694 | if (ret < 0) |
695 | return ret; |
696 | } |
697 | |
698 | return 0; |
699 | } |
700 | |
701 | static int bq24190_register_reset(struct bq24190_dev_info *bdi) |
702 | { |
703 | int ret, limit = 100; |
704 | u8 v; |
705 | |
706 | /* |
707 | * This prop. can be passed on device instantiation from platform code: |
708 | * struct property_entry pe[] = |
709 | * { PROPERTY_ENTRY_BOOL("disable-reset"), ... }; |
710 | * struct i2c_board_info bi = |
711 | * { .type = "bq24190", .addr = 0x6b, .properties = pe, .irq = irq }; |
712 | * struct i2c_adapter ad = { ... }; |
713 | * i2c_add_adapter(&ad); |
714 | * i2c_new_client_device(&ad, &bi); |
715 | */ |
716 | if (device_property_read_bool(dev: bdi->dev, propname: "disable-reset" )) |
717 | return 0; |
718 | |
719 | /* Reset the registers */ |
720 | ret = bq24190_write_mask(bdi, BQ24190_REG_POC, |
721 | BQ24190_REG_POC_RESET_MASK, |
722 | BQ24190_REG_POC_RESET_SHIFT, |
723 | data: 0x1); |
724 | if (ret < 0) |
725 | return ret; |
726 | |
727 | /* Reset bit will be cleared by hardware so poll until it is */ |
728 | do { |
729 | ret = bq24190_read_mask(bdi, BQ24190_REG_POC, |
730 | BQ24190_REG_POC_RESET_MASK, |
731 | BQ24190_REG_POC_RESET_SHIFT, |
732 | data: &v); |
733 | if (ret < 0) |
734 | return ret; |
735 | |
736 | if (v == 0) |
737 | return 0; |
738 | |
739 | usleep_range(min: 100, max: 200); |
740 | } while (--limit); |
741 | |
742 | return -EIO; |
743 | } |
744 | |
745 | /* Charger power supply property routines */ |
746 | |
747 | static int bq24190_charger_get_charge_type(struct bq24190_dev_info *bdi, |
748 | union power_supply_propval *val) |
749 | { |
750 | u8 v; |
751 | int type, ret; |
752 | |
753 | ret = bq24190_read_mask(bdi, BQ24190_REG_POC, |
754 | BQ24190_REG_POC_CHG_CONFIG_MASK, |
755 | BQ24190_REG_POC_CHG_CONFIG_SHIFT, |
756 | data: &v); |
757 | if (ret < 0) |
758 | return ret; |
759 | |
760 | /* If POC[CHG_CONFIG] (REG01[5:4]) == 0, charge is disabled */ |
761 | if (!v) { |
762 | type = POWER_SUPPLY_CHARGE_TYPE_NONE; |
763 | } else { |
764 | ret = bq24190_read_mask(bdi, BQ24190_REG_CCC, |
765 | BQ24190_REG_CCC_FORCE_20PCT_MASK, |
766 | BQ24190_REG_CCC_FORCE_20PCT_SHIFT, |
767 | data: &v); |
768 | if (ret < 0) |
769 | return ret; |
770 | |
771 | type = (v) ? POWER_SUPPLY_CHARGE_TYPE_TRICKLE : |
772 | POWER_SUPPLY_CHARGE_TYPE_FAST; |
773 | } |
774 | |
775 | val->intval = type; |
776 | |
777 | return 0; |
778 | } |
779 | |
780 | static int bq24190_charger_set_charge_type(struct bq24190_dev_info *bdi, |
781 | const union power_supply_propval *val) |
782 | { |
783 | u8 chg_config, force_20pct, en_term; |
784 | int ret; |
785 | |
786 | /* |
787 | * According to the "Termination when REG02[0] = 1" section of |
788 | * the bq24190 manual, the trickle charge could be less than the |
789 | * termination current so it recommends turning off the termination |
790 | * function. |
791 | * |
792 | * Note: AFAICT from the datasheet, the user will have to manually |
793 | * turn off the charging when in 20% mode. If its not turned off, |
794 | * there could be battery damage. So, use this mode at your own risk. |
795 | */ |
796 | switch (val->intval) { |
797 | case POWER_SUPPLY_CHARGE_TYPE_NONE: |
798 | chg_config = 0x0; |
799 | break; |
800 | case POWER_SUPPLY_CHARGE_TYPE_TRICKLE: |
801 | chg_config = 0x1; |
802 | force_20pct = 0x1; |
803 | en_term = 0x0; |
804 | break; |
805 | case POWER_SUPPLY_CHARGE_TYPE_FAST: |
806 | chg_config = 0x1; |
807 | force_20pct = 0x0; |
808 | en_term = 0x1; |
809 | break; |
810 | default: |
811 | return -EINVAL; |
812 | } |
813 | |
814 | bdi->charge_type = val->intval; |
815 | /* |
816 | * If the 5V Vbus boost regulator is enabled delay setting |
817 | * the charge-type until its gets disabled. |
818 | */ |
819 | if (bdi->otg_vbus_enabled) |
820 | return 0; |
821 | |
822 | if (chg_config) { /* Enabling the charger */ |
823 | ret = bq24190_write_mask(bdi, BQ24190_REG_CCC, |
824 | BQ24190_REG_CCC_FORCE_20PCT_MASK, |
825 | BQ24190_REG_CCC_FORCE_20PCT_SHIFT, |
826 | data: force_20pct); |
827 | if (ret < 0) |
828 | return ret; |
829 | |
830 | ret = bq24190_write_mask(bdi, BQ24190_REG_CTTC, |
831 | BQ24190_REG_CTTC_EN_TERM_MASK, |
832 | BQ24190_REG_CTTC_EN_TERM_SHIFT, |
833 | data: en_term); |
834 | if (ret < 0) |
835 | return ret; |
836 | } |
837 | |
838 | return bq24190_write_mask(bdi, BQ24190_REG_POC, |
839 | BQ24190_REG_POC_CHG_CONFIG_MASK, |
840 | BQ24190_REG_POC_CHG_CONFIG_SHIFT, data: chg_config); |
841 | } |
842 | |
843 | static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, |
844 | union power_supply_propval *val) |
845 | { |
846 | u8 v; |
847 | int health; |
848 | |
849 | mutex_lock(&bdi->f_reg_lock); |
850 | v = bdi->f_reg; |
851 | mutex_unlock(lock: &bdi->f_reg_lock); |
852 | |
853 | if (v & BQ24190_REG_F_NTC_FAULT_MASK) { |
854 | switch (v >> BQ24190_REG_F_NTC_FAULT_SHIFT & 0x7) { |
855 | case 0x1: /* TS1 Cold */ |
856 | case 0x3: /* TS2 Cold */ |
857 | case 0x5: /* Both Cold */ |
858 | health = POWER_SUPPLY_HEALTH_COLD; |
859 | break; |
860 | case 0x2: /* TS1 Hot */ |
861 | case 0x4: /* TS2 Hot */ |
862 | case 0x6: /* Both Hot */ |
863 | health = POWER_SUPPLY_HEALTH_OVERHEAT; |
864 | break; |
865 | default: |
866 | health = POWER_SUPPLY_HEALTH_UNKNOWN; |
867 | } |
868 | } else if (v & BQ24190_REG_F_BAT_FAULT_MASK) { |
869 | health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; |
870 | } else if (v & BQ24190_REG_F_CHRG_FAULT_MASK) { |
871 | switch (v >> BQ24190_REG_F_CHRG_FAULT_SHIFT & 0x3) { |
872 | case 0x1: /* Input Fault (VBUS OVP or VBAT<VBUS<3.8V) */ |
873 | /* |
874 | * This could be over-voltage or under-voltage |
875 | * and there's no way to tell which. Instead |
876 | * of looking foolish and returning 'OVERVOLTAGE' |
877 | * when its really under-voltage, just return |
878 | * 'UNSPEC_FAILURE'. |
879 | */ |
880 | health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; |
881 | break; |
882 | case 0x2: /* Thermal Shutdown */ |
883 | health = POWER_SUPPLY_HEALTH_OVERHEAT; |
884 | break; |
885 | case 0x3: /* Charge Safety Timer Expiration */ |
886 | health = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; |
887 | break; |
888 | default: /* prevent compiler warning */ |
889 | health = -1; |
890 | } |
891 | } else if (v & BQ24190_REG_F_BOOST_FAULT_MASK) { |
892 | /* |
893 | * This could be over-current or over-voltage but there's |
894 | * no way to tell which. Return 'OVERVOLTAGE' since there |
895 | * isn't an 'OVERCURRENT' value defined that we can return |
896 | * even if it was over-current. |
897 | */ |
898 | health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; |
899 | } else { |
900 | health = POWER_SUPPLY_HEALTH_GOOD; |
901 | } |
902 | |
903 | val->intval = health; |
904 | |
905 | return 0; |
906 | } |
907 | |
908 | static int bq24190_charger_get_online(struct bq24190_dev_info *bdi, |
909 | union power_supply_propval *val) |
910 | { |
911 | u8 pg_stat, batfet_disable; |
912 | int ret; |
913 | |
914 | ret = bq24190_read_mask(bdi, BQ24190_REG_SS, |
915 | BQ24190_REG_SS_PG_STAT_MASK, |
916 | BQ24190_REG_SS_PG_STAT_SHIFT, data: &pg_stat); |
917 | if (ret < 0) |
918 | return ret; |
919 | |
920 | ret = bq24190_read_mask(bdi, BQ24190_REG_MOC, |
921 | BQ24190_REG_MOC_BATFET_DISABLE_MASK, |
922 | BQ24190_REG_MOC_BATFET_DISABLE_SHIFT, data: &batfet_disable); |
923 | if (ret < 0) |
924 | return ret; |
925 | |
926 | val->intval = pg_stat && !batfet_disable; |
927 | |
928 | return 0; |
929 | } |
930 | |
931 | static int bq24190_battery_set_online(struct bq24190_dev_info *bdi, |
932 | const union power_supply_propval *val); |
933 | static int bq24190_battery_get_status(struct bq24190_dev_info *bdi, |
934 | union power_supply_propval *val); |
935 | static int bq24190_battery_get_temp_alert_max(struct bq24190_dev_info *bdi, |
936 | union power_supply_propval *val); |
937 | static int bq24190_battery_set_temp_alert_max(struct bq24190_dev_info *bdi, |
938 | const union power_supply_propval *val); |
939 | |
940 | static int bq24190_charger_set_online(struct bq24190_dev_info *bdi, |
941 | const union power_supply_propval *val) |
942 | { |
943 | return bq24190_battery_set_online(bdi, val); |
944 | } |
945 | |
946 | static int bq24190_charger_get_status(struct bq24190_dev_info *bdi, |
947 | union power_supply_propval *val) |
948 | { |
949 | return bq24190_battery_get_status(bdi, val); |
950 | } |
951 | |
952 | static int bq24190_charger_get_temp_alert_max(struct bq24190_dev_info *bdi, |
953 | union power_supply_propval *val) |
954 | { |
955 | return bq24190_battery_get_temp_alert_max(bdi, val); |
956 | } |
957 | |
958 | static int bq24190_charger_set_temp_alert_max(struct bq24190_dev_info *bdi, |
959 | const union power_supply_propval *val) |
960 | { |
961 | return bq24190_battery_set_temp_alert_max(bdi, val); |
962 | } |
963 | |
964 | static int bq24190_charger_get_precharge(struct bq24190_dev_info *bdi, |
965 | union power_supply_propval *val) |
966 | { |
967 | u8 v; |
968 | int curr, ret; |
969 | |
970 | ret = bq24190_read_mask(bdi, BQ24190_REG_PCTCC, |
971 | BQ24190_REG_PCTCC_IPRECHG_MASK, |
972 | BQ24190_REG_PCTCC_IPRECHG_SHIFT, data: &v); |
973 | if (ret < 0) |
974 | return ret; |
975 | |
976 | curr = ++v * 128 * 1000; |
977 | |
978 | ret = bq24190_read_mask(bdi, BQ24190_REG_CCC, |
979 | BQ24190_REG_CCC_FORCE_20PCT_MASK, |
980 | BQ24190_REG_CCC_FORCE_20PCT_SHIFT, data: &v); |
981 | if (ret < 0) |
982 | return ret; |
983 | |
984 | /* If FORCE_20PCT is enabled, then current is 50% of IPRECHG value */ |
985 | if (v) |
986 | curr /= 2; |
987 | |
988 | val->intval = curr; |
989 | |
990 | return 0; |
991 | } |
992 | |
993 | static int bq24190_charger_get_charge_term(struct bq24190_dev_info *bdi, |
994 | union power_supply_propval *val) |
995 | { |
996 | u8 v; |
997 | int ret; |
998 | |
999 | ret = bq24190_read_mask(bdi, BQ24190_REG_PCTCC, |
1000 | BQ24190_REG_PCTCC_ITERM_MASK, |
1001 | BQ24190_REG_PCTCC_ITERM_SHIFT, data: &v); |
1002 | if (ret < 0) |
1003 | return ret; |
1004 | |
1005 | val->intval = ++v * 128 * 1000; |
1006 | return 0; |
1007 | } |
1008 | |
1009 | static int bq24190_charger_get_current(struct bq24190_dev_info *bdi, |
1010 | union power_supply_propval *val) |
1011 | { |
1012 | u8 v; |
1013 | int curr, ret; |
1014 | |
1015 | ret = bq24190_get_field_val(bdi, BQ24190_REG_CCC, |
1016 | BQ24190_REG_CCC_ICHG_MASK, BQ24190_REG_CCC_ICHG_SHIFT, |
1017 | tbl: bq24190_ccc_ichg_values, |
1018 | ARRAY_SIZE(bq24190_ccc_ichg_values), val: &curr); |
1019 | if (ret < 0) |
1020 | return ret; |
1021 | |
1022 | ret = bq24190_read_mask(bdi, BQ24190_REG_CCC, |
1023 | BQ24190_REG_CCC_FORCE_20PCT_MASK, |
1024 | BQ24190_REG_CCC_FORCE_20PCT_SHIFT, data: &v); |
1025 | if (ret < 0) |
1026 | return ret; |
1027 | |
1028 | /* If FORCE_20PCT is enabled, then current is 20% of ICHG value */ |
1029 | if (v) |
1030 | curr /= 5; |
1031 | |
1032 | val->intval = curr; |
1033 | return 0; |
1034 | } |
1035 | |
1036 | static int bq24190_charger_set_current(struct bq24190_dev_info *bdi, |
1037 | const union power_supply_propval *val) |
1038 | { |
1039 | u8 v; |
1040 | int ret, curr = val->intval; |
1041 | |
1042 | ret = bq24190_read_mask(bdi, BQ24190_REG_CCC, |
1043 | BQ24190_REG_CCC_FORCE_20PCT_MASK, |
1044 | BQ24190_REG_CCC_FORCE_20PCT_SHIFT, data: &v); |
1045 | if (ret < 0) |
1046 | return ret; |
1047 | |
1048 | /* If FORCE_20PCT is enabled, have to multiply value passed in by 5 */ |
1049 | if (v) |
1050 | curr *= 5; |
1051 | |
1052 | if (curr > bdi->ichg_max) |
1053 | return -EINVAL; |
1054 | |
1055 | ret = bq24190_set_field_val(bdi, BQ24190_REG_CCC, |
1056 | BQ24190_REG_CCC_ICHG_MASK, BQ24190_REG_CCC_ICHG_SHIFT, |
1057 | tbl: bq24190_ccc_ichg_values, |
1058 | ARRAY_SIZE(bq24190_ccc_ichg_values), val: curr); |
1059 | if (ret < 0) |
1060 | return ret; |
1061 | |
1062 | bdi->ichg = curr; |
1063 | |
1064 | return 0; |
1065 | } |
1066 | |
1067 | static int bq24190_charger_get_voltage(struct bq24190_dev_info *bdi, |
1068 | union power_supply_propval *val) |
1069 | { |
1070 | int voltage, ret; |
1071 | |
1072 | ret = bq24190_get_field_val(bdi, BQ24190_REG_CVC, |
1073 | BQ24190_REG_CVC_VREG_MASK, BQ24190_REG_CVC_VREG_SHIFT, |
1074 | tbl: bq24190_cvc_vreg_values, |
1075 | ARRAY_SIZE(bq24190_cvc_vreg_values), val: &voltage); |
1076 | if (ret < 0) |
1077 | return ret; |
1078 | |
1079 | val->intval = voltage; |
1080 | return 0; |
1081 | } |
1082 | |
1083 | static int bq24190_charger_set_voltage(struct bq24190_dev_info *bdi, |
1084 | const union power_supply_propval *val) |
1085 | { |
1086 | int ret; |
1087 | |
1088 | if (val->intval > bdi->vreg_max) |
1089 | return -EINVAL; |
1090 | |
1091 | ret = bq24190_set_field_val(bdi, BQ24190_REG_CVC, |
1092 | BQ24190_REG_CVC_VREG_MASK, BQ24190_REG_CVC_VREG_SHIFT, |
1093 | tbl: bq24190_cvc_vreg_values, |
1094 | ARRAY_SIZE(bq24190_cvc_vreg_values), val: val->intval); |
1095 | if (ret < 0) |
1096 | return ret; |
1097 | |
1098 | bdi->vreg = val->intval; |
1099 | |
1100 | return 0; |
1101 | } |
1102 | |
1103 | static int bq24190_charger_get_iinlimit(struct bq24190_dev_info *bdi, |
1104 | union power_supply_propval *val) |
1105 | { |
1106 | int iinlimit, ret; |
1107 | |
1108 | ret = bq24190_get_field_val(bdi, BQ24190_REG_ISC, |
1109 | BQ24190_REG_ISC_IINLIM_MASK, |
1110 | BQ24190_REG_ISC_IINLIM_SHIFT, |
1111 | tbl: bq24190_isc_iinlim_values, |
1112 | ARRAY_SIZE(bq24190_isc_iinlim_values), val: &iinlimit); |
1113 | if (ret < 0) |
1114 | return ret; |
1115 | |
1116 | val->intval = iinlimit; |
1117 | return 0; |
1118 | } |
1119 | |
1120 | static int bq24190_charger_set_iinlimit(struct bq24190_dev_info *bdi, |
1121 | const union power_supply_propval *val) |
1122 | { |
1123 | return bq24190_set_field_val(bdi, BQ24190_REG_ISC, |
1124 | BQ24190_REG_ISC_IINLIM_MASK, |
1125 | BQ24190_REG_ISC_IINLIM_SHIFT, |
1126 | tbl: bq24190_isc_iinlim_values, |
1127 | ARRAY_SIZE(bq24190_isc_iinlim_values), val: val->intval); |
1128 | } |
1129 | |
1130 | static int bq24190_charger_get_property(struct power_supply *psy, |
1131 | enum power_supply_property psp, union power_supply_propval *val) |
1132 | { |
1133 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
1134 | int ret; |
1135 | |
1136 | dev_dbg(bdi->dev, "prop: %d\n" , psp); |
1137 | |
1138 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
1139 | if (ret < 0) |
1140 | return ret; |
1141 | |
1142 | switch (psp) { |
1143 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
1144 | ret = bq24190_charger_get_charge_type(bdi, val); |
1145 | break; |
1146 | case POWER_SUPPLY_PROP_HEALTH: |
1147 | ret = bq24190_charger_get_health(bdi, val); |
1148 | break; |
1149 | case POWER_SUPPLY_PROP_ONLINE: |
1150 | ret = bq24190_charger_get_online(bdi, val); |
1151 | break; |
1152 | case POWER_SUPPLY_PROP_STATUS: |
1153 | ret = bq24190_charger_get_status(bdi, val); |
1154 | break; |
1155 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1156 | ret = bq24190_charger_get_temp_alert_max(bdi, val); |
1157 | break; |
1158 | case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: |
1159 | ret = bq24190_charger_get_precharge(bdi, val); |
1160 | break; |
1161 | case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: |
1162 | ret = bq24190_charger_get_charge_term(bdi, val); |
1163 | break; |
1164 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
1165 | ret = bq24190_charger_get_current(bdi, val); |
1166 | break; |
1167 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: |
1168 | val->intval = bdi->ichg_max; |
1169 | ret = 0; |
1170 | break; |
1171 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
1172 | ret = bq24190_charger_get_voltage(bdi, val); |
1173 | break; |
1174 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: |
1175 | val->intval = bdi->vreg_max; |
1176 | ret = 0; |
1177 | break; |
1178 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
1179 | ret = bq24190_charger_get_iinlimit(bdi, val); |
1180 | break; |
1181 | case POWER_SUPPLY_PROP_SCOPE: |
1182 | val->intval = POWER_SUPPLY_SCOPE_SYSTEM; |
1183 | ret = 0; |
1184 | break; |
1185 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1186 | val->strval = bdi->model_name; |
1187 | ret = 0; |
1188 | break; |
1189 | case POWER_SUPPLY_PROP_MANUFACTURER: |
1190 | val->strval = BQ24190_MANUFACTURER; |
1191 | ret = 0; |
1192 | break; |
1193 | default: |
1194 | ret = -ENODATA; |
1195 | } |
1196 | |
1197 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1198 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1199 | |
1200 | return ret; |
1201 | } |
1202 | |
1203 | static int bq24190_charger_set_property(struct power_supply *psy, |
1204 | enum power_supply_property psp, |
1205 | const union power_supply_propval *val) |
1206 | { |
1207 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
1208 | int ret; |
1209 | |
1210 | dev_dbg(bdi->dev, "prop: %d\n" , psp); |
1211 | |
1212 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
1213 | if (ret < 0) |
1214 | return ret; |
1215 | |
1216 | switch (psp) { |
1217 | case POWER_SUPPLY_PROP_ONLINE: |
1218 | ret = bq24190_charger_set_online(bdi, val); |
1219 | break; |
1220 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1221 | ret = bq24190_charger_set_temp_alert_max(bdi, val); |
1222 | break; |
1223 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
1224 | ret = bq24190_charger_set_charge_type(bdi, val); |
1225 | break; |
1226 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
1227 | ret = bq24190_charger_set_current(bdi, val); |
1228 | break; |
1229 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
1230 | ret = bq24190_charger_set_voltage(bdi, val); |
1231 | break; |
1232 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
1233 | ret = bq24190_charger_set_iinlimit(bdi, val); |
1234 | break; |
1235 | default: |
1236 | ret = -EINVAL; |
1237 | } |
1238 | |
1239 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1240 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1241 | |
1242 | return ret; |
1243 | } |
1244 | |
1245 | static int bq24190_charger_property_is_writeable(struct power_supply *psy, |
1246 | enum power_supply_property psp) |
1247 | { |
1248 | switch (psp) { |
1249 | case POWER_SUPPLY_PROP_ONLINE: |
1250 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1251 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
1252 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
1253 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
1254 | case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: |
1255 | return 1; |
1256 | default: |
1257 | return 0; |
1258 | } |
1259 | } |
1260 | |
1261 | static void bq24190_input_current_limit_work(struct work_struct *work) |
1262 | { |
1263 | struct bq24190_dev_info *bdi = |
1264 | container_of(work, struct bq24190_dev_info, |
1265 | input_current_limit_work.work); |
1266 | union power_supply_propval val; |
1267 | int ret; |
1268 | |
1269 | ret = power_supply_get_property_from_supplier(psy: bdi->charger, |
1270 | psp: POWER_SUPPLY_PROP_CURRENT_MAX, |
1271 | val: &val); |
1272 | if (ret) |
1273 | return; |
1274 | |
1275 | bq24190_charger_set_property(psy: bdi->charger, |
1276 | psp: POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, |
1277 | val: &val); |
1278 | power_supply_changed(psy: bdi->charger); |
1279 | } |
1280 | |
1281 | /* Sync the input-current-limit with our parent supply (if we have one) */ |
1282 | static void bq24190_charger_external_power_changed(struct power_supply *psy) |
1283 | { |
1284 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
1285 | |
1286 | /* |
1287 | * The Power-Good detection may take up to 220ms, sometimes |
1288 | * the external charger detection is quicker, and the bq24190 will |
1289 | * reset to iinlim based on its own charger detection (which is not |
1290 | * hooked up when using external charger detection) resulting in a |
1291 | * too low default 500mA iinlim. Delay setting the input-current-limit |
1292 | * for 300ms to avoid this. |
1293 | */ |
1294 | queue_delayed_work(wq: system_wq, dwork: &bdi->input_current_limit_work, |
1295 | delay: msecs_to_jiffies(m: 300)); |
1296 | } |
1297 | |
1298 | static enum power_supply_property bq24190_charger_properties[] = { |
1299 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
1300 | POWER_SUPPLY_PROP_HEALTH, |
1301 | POWER_SUPPLY_PROP_ONLINE, |
1302 | POWER_SUPPLY_PROP_STATUS, |
1303 | POWER_SUPPLY_PROP_TEMP_ALERT_MAX, |
1304 | POWER_SUPPLY_PROP_PRECHARGE_CURRENT, |
1305 | POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, |
1306 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, |
1307 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, |
1308 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, |
1309 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, |
1310 | POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, |
1311 | POWER_SUPPLY_PROP_SCOPE, |
1312 | POWER_SUPPLY_PROP_MODEL_NAME, |
1313 | POWER_SUPPLY_PROP_MANUFACTURER, |
1314 | }; |
1315 | |
1316 | static char *bq24190_charger_supplied_to[] = { |
1317 | "main-battery" , |
1318 | }; |
1319 | |
1320 | static const struct power_supply_desc bq24190_charger_desc = { |
1321 | .name = "bq24190-charger" , |
1322 | .type = POWER_SUPPLY_TYPE_USB, |
1323 | .properties = bq24190_charger_properties, |
1324 | .num_properties = ARRAY_SIZE(bq24190_charger_properties), |
1325 | .get_property = bq24190_charger_get_property, |
1326 | .set_property = bq24190_charger_set_property, |
1327 | .property_is_writeable = bq24190_charger_property_is_writeable, |
1328 | .external_power_changed = bq24190_charger_external_power_changed, |
1329 | }; |
1330 | |
1331 | /* Battery power supply property routines */ |
1332 | |
1333 | static int bq24190_battery_get_status(struct bq24190_dev_info *bdi, |
1334 | union power_supply_propval *val) |
1335 | { |
1336 | u8 ss_reg, chrg_fault; |
1337 | int status, ret; |
1338 | |
1339 | mutex_lock(&bdi->f_reg_lock); |
1340 | chrg_fault = bdi->f_reg; |
1341 | mutex_unlock(lock: &bdi->f_reg_lock); |
1342 | |
1343 | chrg_fault &= BQ24190_REG_F_CHRG_FAULT_MASK; |
1344 | chrg_fault >>= BQ24190_REG_F_CHRG_FAULT_SHIFT; |
1345 | |
1346 | ret = bq24190_read(bdi, BQ24190_REG_SS, data: &ss_reg); |
1347 | if (ret < 0) |
1348 | return ret; |
1349 | |
1350 | /* |
1351 | * The battery must be discharging when any of these are true: |
1352 | * - there is no good power source; |
1353 | * - there is a charge fault. |
1354 | * Could also be discharging when in "supplement mode" but |
1355 | * there is no way to tell when its in that mode. |
1356 | */ |
1357 | if (!(ss_reg & BQ24190_REG_SS_PG_STAT_MASK) || chrg_fault) { |
1358 | status = POWER_SUPPLY_STATUS_DISCHARGING; |
1359 | } else { |
1360 | ss_reg &= BQ24190_REG_SS_CHRG_STAT_MASK; |
1361 | ss_reg >>= BQ24190_REG_SS_CHRG_STAT_SHIFT; |
1362 | |
1363 | switch (ss_reg) { |
1364 | case 0x0: /* Not Charging */ |
1365 | status = POWER_SUPPLY_STATUS_NOT_CHARGING; |
1366 | break; |
1367 | case 0x1: /* Pre-charge */ |
1368 | case 0x2: /* Fast Charging */ |
1369 | status = POWER_SUPPLY_STATUS_CHARGING; |
1370 | break; |
1371 | case 0x3: /* Charge Termination Done */ |
1372 | status = POWER_SUPPLY_STATUS_FULL; |
1373 | break; |
1374 | default: |
1375 | ret = -EIO; |
1376 | } |
1377 | } |
1378 | |
1379 | if (!ret) |
1380 | val->intval = status; |
1381 | |
1382 | return ret; |
1383 | } |
1384 | |
1385 | static int bq24190_battery_get_health(struct bq24190_dev_info *bdi, |
1386 | union power_supply_propval *val) |
1387 | { |
1388 | u8 v; |
1389 | int health; |
1390 | |
1391 | mutex_lock(&bdi->f_reg_lock); |
1392 | v = bdi->f_reg; |
1393 | mutex_unlock(lock: &bdi->f_reg_lock); |
1394 | |
1395 | if (v & BQ24190_REG_F_BAT_FAULT_MASK) { |
1396 | health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; |
1397 | } else { |
1398 | v &= BQ24190_REG_F_NTC_FAULT_MASK; |
1399 | v >>= BQ24190_REG_F_NTC_FAULT_SHIFT; |
1400 | |
1401 | switch (v) { |
1402 | case 0x0: /* Normal */ |
1403 | health = POWER_SUPPLY_HEALTH_GOOD; |
1404 | break; |
1405 | case 0x1: /* TS1 Cold */ |
1406 | case 0x3: /* TS2 Cold */ |
1407 | case 0x5: /* Both Cold */ |
1408 | health = POWER_SUPPLY_HEALTH_COLD; |
1409 | break; |
1410 | case 0x2: /* TS1 Hot */ |
1411 | case 0x4: /* TS2 Hot */ |
1412 | case 0x6: /* Both Hot */ |
1413 | health = POWER_SUPPLY_HEALTH_OVERHEAT; |
1414 | break; |
1415 | default: |
1416 | health = POWER_SUPPLY_HEALTH_UNKNOWN; |
1417 | } |
1418 | } |
1419 | |
1420 | val->intval = health; |
1421 | return 0; |
1422 | } |
1423 | |
1424 | static int bq24190_battery_get_online(struct bq24190_dev_info *bdi, |
1425 | union power_supply_propval *val) |
1426 | { |
1427 | u8 batfet_disable; |
1428 | int ret; |
1429 | |
1430 | ret = bq24190_read_mask(bdi, BQ24190_REG_MOC, |
1431 | BQ24190_REG_MOC_BATFET_DISABLE_MASK, |
1432 | BQ24190_REG_MOC_BATFET_DISABLE_SHIFT, data: &batfet_disable); |
1433 | if (ret < 0) |
1434 | return ret; |
1435 | |
1436 | val->intval = !batfet_disable; |
1437 | return 0; |
1438 | } |
1439 | |
1440 | static int bq24190_battery_set_online(struct bq24190_dev_info *bdi, |
1441 | const union power_supply_propval *val) |
1442 | { |
1443 | return bq24190_write_mask(bdi, BQ24190_REG_MOC, |
1444 | BQ24190_REG_MOC_BATFET_DISABLE_MASK, |
1445 | BQ24190_REG_MOC_BATFET_DISABLE_SHIFT, data: !val->intval); |
1446 | } |
1447 | |
1448 | static int bq24190_battery_get_temp_alert_max(struct bq24190_dev_info *bdi, |
1449 | union power_supply_propval *val) |
1450 | { |
1451 | int temp, ret; |
1452 | |
1453 | ret = bq24190_get_field_val(bdi, BQ24190_REG_ICTRC, |
1454 | BQ24190_REG_ICTRC_TREG_MASK, |
1455 | BQ24190_REG_ICTRC_TREG_SHIFT, |
1456 | tbl: bq24190_ictrc_treg_values, |
1457 | ARRAY_SIZE(bq24190_ictrc_treg_values), val: &temp); |
1458 | if (ret < 0) |
1459 | return ret; |
1460 | |
1461 | val->intval = temp; |
1462 | return 0; |
1463 | } |
1464 | |
1465 | static int bq24190_battery_set_temp_alert_max(struct bq24190_dev_info *bdi, |
1466 | const union power_supply_propval *val) |
1467 | { |
1468 | return bq24190_set_field_val(bdi, BQ24190_REG_ICTRC, |
1469 | BQ24190_REG_ICTRC_TREG_MASK, |
1470 | BQ24190_REG_ICTRC_TREG_SHIFT, |
1471 | tbl: bq24190_ictrc_treg_values, |
1472 | ARRAY_SIZE(bq24190_ictrc_treg_values), val: val->intval); |
1473 | } |
1474 | |
1475 | static int bq24190_battery_get_property(struct power_supply *psy, |
1476 | enum power_supply_property psp, union power_supply_propval *val) |
1477 | { |
1478 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
1479 | int ret; |
1480 | |
1481 | dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n" ); |
1482 | dev_dbg(bdi->dev, "prop: %d\n" , psp); |
1483 | |
1484 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
1485 | if (ret < 0) |
1486 | return ret; |
1487 | |
1488 | switch (psp) { |
1489 | case POWER_SUPPLY_PROP_STATUS: |
1490 | ret = bq24190_battery_get_status(bdi, val); |
1491 | break; |
1492 | case POWER_SUPPLY_PROP_HEALTH: |
1493 | ret = bq24190_battery_get_health(bdi, val); |
1494 | break; |
1495 | case POWER_SUPPLY_PROP_ONLINE: |
1496 | ret = bq24190_battery_get_online(bdi, val); |
1497 | break; |
1498 | case POWER_SUPPLY_PROP_TECHNOLOGY: |
1499 | /* Could be Li-on or Li-polymer but no way to tell which */ |
1500 | val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN; |
1501 | ret = 0; |
1502 | break; |
1503 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1504 | ret = bq24190_battery_get_temp_alert_max(bdi, val); |
1505 | break; |
1506 | case POWER_SUPPLY_PROP_SCOPE: |
1507 | val->intval = POWER_SUPPLY_SCOPE_SYSTEM; |
1508 | ret = 0; |
1509 | break; |
1510 | default: |
1511 | ret = -ENODATA; |
1512 | } |
1513 | |
1514 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1515 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1516 | |
1517 | return ret; |
1518 | } |
1519 | |
1520 | static int bq24190_battery_set_property(struct power_supply *psy, |
1521 | enum power_supply_property psp, |
1522 | const union power_supply_propval *val) |
1523 | { |
1524 | struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); |
1525 | int ret; |
1526 | |
1527 | dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n" ); |
1528 | dev_dbg(bdi->dev, "prop: %d\n" , psp); |
1529 | |
1530 | ret = pm_runtime_resume_and_get(dev: bdi->dev); |
1531 | if (ret < 0) |
1532 | return ret; |
1533 | |
1534 | switch (psp) { |
1535 | case POWER_SUPPLY_PROP_ONLINE: |
1536 | ret = bq24190_battery_set_online(bdi, val); |
1537 | break; |
1538 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1539 | ret = bq24190_battery_set_temp_alert_max(bdi, val); |
1540 | break; |
1541 | default: |
1542 | ret = -EINVAL; |
1543 | } |
1544 | |
1545 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1546 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1547 | |
1548 | return ret; |
1549 | } |
1550 | |
1551 | static int bq24190_battery_property_is_writeable(struct power_supply *psy, |
1552 | enum power_supply_property psp) |
1553 | { |
1554 | int ret; |
1555 | |
1556 | switch (psp) { |
1557 | case POWER_SUPPLY_PROP_ONLINE: |
1558 | case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: |
1559 | ret = 1; |
1560 | break; |
1561 | default: |
1562 | ret = 0; |
1563 | } |
1564 | |
1565 | return ret; |
1566 | } |
1567 | |
1568 | static enum power_supply_property bq24190_battery_properties[] = { |
1569 | POWER_SUPPLY_PROP_STATUS, |
1570 | POWER_SUPPLY_PROP_HEALTH, |
1571 | POWER_SUPPLY_PROP_ONLINE, |
1572 | POWER_SUPPLY_PROP_TECHNOLOGY, |
1573 | POWER_SUPPLY_PROP_TEMP_ALERT_MAX, |
1574 | POWER_SUPPLY_PROP_SCOPE, |
1575 | }; |
1576 | |
1577 | static const struct power_supply_desc bq24190_battery_desc = { |
1578 | .name = "bq24190-battery" , |
1579 | .type = POWER_SUPPLY_TYPE_BATTERY, |
1580 | .properties = bq24190_battery_properties, |
1581 | .num_properties = ARRAY_SIZE(bq24190_battery_properties), |
1582 | .get_property = bq24190_battery_get_property, |
1583 | .set_property = bq24190_battery_set_property, |
1584 | .property_is_writeable = bq24190_battery_property_is_writeable, |
1585 | }; |
1586 | |
1587 | static int bq24190_configure_usb_otg(struct bq24190_dev_info *bdi, u8 ss_reg) |
1588 | { |
1589 | bool otg_enabled; |
1590 | int ret; |
1591 | |
1592 | otg_enabled = !!(ss_reg & BQ24190_REG_SS_VBUS_STAT_MASK); |
1593 | ret = extcon_set_state_sync(edev: bdi->edev, EXTCON_USB, state: otg_enabled); |
1594 | if (ret < 0) |
1595 | dev_err(bdi->dev, "Can't set extcon state to %d: %d\n" , |
1596 | otg_enabled, ret); |
1597 | |
1598 | return ret; |
1599 | } |
1600 | |
1601 | static void bq24190_check_status(struct bq24190_dev_info *bdi) |
1602 | { |
1603 | const u8 battery_mask_ss = BQ24190_REG_SS_CHRG_STAT_MASK; |
1604 | const u8 battery_mask_f = BQ24190_REG_F_BAT_FAULT_MASK |
1605 | | BQ24190_REG_F_NTC_FAULT_MASK; |
1606 | bool alert_charger = false, alert_battery = false; |
1607 | u8 ss_reg = 0, f_reg = 0; |
1608 | int i, ret; |
1609 | |
1610 | ret = bq24190_read(bdi, BQ24190_REG_SS, data: &ss_reg); |
1611 | if (ret < 0) { |
1612 | dev_err(bdi->dev, "Can't read SS reg: %d\n" , ret); |
1613 | return; |
1614 | } |
1615 | |
1616 | i = 0; |
1617 | do { |
1618 | ret = bq24190_read(bdi, BQ24190_REG_F, data: &f_reg); |
1619 | if (ret < 0) { |
1620 | dev_err(bdi->dev, "Can't read F reg: %d\n" , ret); |
1621 | return; |
1622 | } |
1623 | } while (f_reg && ++i < 2); |
1624 | |
1625 | /* ignore over/under voltage fault after disconnect */ |
1626 | if (f_reg == (1 << BQ24190_REG_F_CHRG_FAULT_SHIFT) && |
1627 | !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK)) |
1628 | f_reg = 0; |
1629 | |
1630 | if (f_reg != bdi->f_reg) { |
1631 | dev_warn(bdi->dev, |
1632 | "Fault: boost %d, charge %d, battery %d, ntc %d\n" , |
1633 | !!(f_reg & BQ24190_REG_F_BOOST_FAULT_MASK), |
1634 | !!(f_reg & BQ24190_REG_F_CHRG_FAULT_MASK), |
1635 | !!(f_reg & BQ24190_REG_F_BAT_FAULT_MASK), |
1636 | !!(f_reg & BQ24190_REG_F_NTC_FAULT_MASK)); |
1637 | |
1638 | mutex_lock(&bdi->f_reg_lock); |
1639 | if ((bdi->f_reg & battery_mask_f) != (f_reg & battery_mask_f)) |
1640 | alert_battery = true; |
1641 | if ((bdi->f_reg & ~battery_mask_f) != (f_reg & ~battery_mask_f)) |
1642 | alert_charger = true; |
1643 | bdi->f_reg = f_reg; |
1644 | mutex_unlock(lock: &bdi->f_reg_lock); |
1645 | } |
1646 | |
1647 | if (ss_reg != bdi->ss_reg) { |
1648 | /* |
1649 | * The device is in host mode so when PG_STAT goes from 1->0 |
1650 | * (i.e., power removed) HIZ needs to be disabled. |
1651 | */ |
1652 | if ((bdi->ss_reg & BQ24190_REG_SS_PG_STAT_MASK) && |
1653 | !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK)) { |
1654 | ret = bq24190_write_mask(bdi, BQ24190_REG_ISC, |
1655 | BQ24190_REG_ISC_EN_HIZ_MASK, |
1656 | BQ24190_REG_ISC_EN_HIZ_SHIFT, |
1657 | data: 0); |
1658 | if (ret < 0) |
1659 | dev_err(bdi->dev, "Can't access ISC reg: %d\n" , |
1660 | ret); |
1661 | } |
1662 | |
1663 | if ((bdi->ss_reg & battery_mask_ss) != (ss_reg & battery_mask_ss)) |
1664 | alert_battery = true; |
1665 | if ((bdi->ss_reg & ~battery_mask_ss) != (ss_reg & ~battery_mask_ss)) |
1666 | alert_charger = true; |
1667 | bdi->ss_reg = ss_reg; |
1668 | } |
1669 | |
1670 | if (alert_charger || alert_battery) { |
1671 | power_supply_changed(psy: bdi->charger); |
1672 | bq24190_configure_usb_otg(bdi, ss_reg); |
1673 | } |
1674 | if (alert_battery && bdi->battery) |
1675 | power_supply_changed(psy: bdi->battery); |
1676 | |
1677 | dev_dbg(bdi->dev, "ss_reg: 0x%02x, f_reg: 0x%02x\n" , ss_reg, f_reg); |
1678 | } |
1679 | |
1680 | static irqreturn_t bq24190_irq_handler_thread(int irq, void *data) |
1681 | { |
1682 | struct bq24190_dev_info *bdi = data; |
1683 | int error; |
1684 | |
1685 | bdi->irq_event = true; |
1686 | error = pm_runtime_resume_and_get(dev: bdi->dev); |
1687 | if (error < 0) { |
1688 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , error); |
1689 | return IRQ_NONE; |
1690 | } |
1691 | bq24190_check_status(bdi); |
1692 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1693 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1694 | bdi->irq_event = false; |
1695 | |
1696 | return IRQ_HANDLED; |
1697 | } |
1698 | |
1699 | static int bq24190_hw_init(struct bq24190_dev_info *bdi) |
1700 | { |
1701 | u8 v; |
1702 | int ret; |
1703 | |
1704 | /* First check that the device really is what its supposed to be */ |
1705 | ret = bq24190_read_mask(bdi, BQ24190_REG_VPRS, |
1706 | BQ24190_REG_VPRS_PN_MASK, |
1707 | BQ24190_REG_VPRS_PN_SHIFT, |
1708 | data: &v); |
1709 | if (ret < 0) |
1710 | return ret; |
1711 | |
1712 | switch (v) { |
1713 | case BQ24190_REG_VPRS_PN_24190: |
1714 | case BQ24190_REG_VPRS_PN_24192: |
1715 | case BQ24190_REG_VPRS_PN_24192I: |
1716 | break; |
1717 | default: |
1718 | dev_err(bdi->dev, "Error unknown model: 0x%02x\n" , v); |
1719 | return -ENODEV; |
1720 | } |
1721 | |
1722 | ret = bq24190_register_reset(bdi); |
1723 | if (ret < 0) |
1724 | return ret; |
1725 | |
1726 | ret = bq24190_set_config(bdi); |
1727 | if (ret < 0) |
1728 | return ret; |
1729 | |
1730 | return bq24190_read(bdi, BQ24190_REG_SS, data: &bdi->ss_reg); |
1731 | } |
1732 | |
1733 | static int bq24190_get_config(struct bq24190_dev_info *bdi) |
1734 | { |
1735 | const char * const s = "ti,system-minimum-microvolt" ; |
1736 | struct power_supply_battery_info *info; |
1737 | int v, idx; |
1738 | |
1739 | idx = ARRAY_SIZE(bq24190_ccc_ichg_values) - 1; |
1740 | bdi->ichg_max = bq24190_ccc_ichg_values[idx]; |
1741 | |
1742 | idx = ARRAY_SIZE(bq24190_cvc_vreg_values) - 1; |
1743 | bdi->vreg_max = bq24190_cvc_vreg_values[idx]; |
1744 | |
1745 | if (device_property_read_u32(dev: bdi->dev, propname: s, val: &v) == 0) { |
1746 | v /= 1000; |
1747 | if (v >= BQ24190_REG_POC_SYS_MIN_MIN |
1748 | && v <= BQ24190_REG_POC_SYS_MIN_MAX) |
1749 | bdi->sys_min = v; |
1750 | else |
1751 | dev_warn(bdi->dev, "invalid value for %s: %u\n" , s, v); |
1752 | } |
1753 | |
1754 | if (!power_supply_get_battery_info(psy: bdi->charger, info_out: &info)) { |
1755 | v = info->precharge_current_ua / 1000; |
1756 | if (v >= BQ24190_REG_PCTCC_IPRECHG_MIN |
1757 | && v <= BQ24190_REG_PCTCC_IPRECHG_MAX) |
1758 | bdi->iprechg = v; |
1759 | else |
1760 | dev_warn(bdi->dev, "invalid value for battery:precharge-current-microamp: %d\n" , |
1761 | v); |
1762 | |
1763 | v = info->charge_term_current_ua / 1000; |
1764 | if (v >= BQ24190_REG_PCTCC_ITERM_MIN |
1765 | && v <= BQ24190_REG_PCTCC_ITERM_MAX) |
1766 | bdi->iterm = v; |
1767 | else |
1768 | dev_warn(bdi->dev, "invalid value for battery:charge-term-current-microamp: %d\n" , |
1769 | v); |
1770 | |
1771 | /* These are optional, so no warning when not set */ |
1772 | v = info->constant_charge_current_max_ua; |
1773 | if (v >= bq24190_ccc_ichg_values[0] && v <= bdi->ichg_max) |
1774 | bdi->ichg = bdi->ichg_max = v; |
1775 | |
1776 | v = info->constant_charge_voltage_max_uv; |
1777 | if (v >= bq24190_cvc_vreg_values[0] && v <= bdi->vreg_max) |
1778 | bdi->vreg = bdi->vreg_max = v; |
1779 | } |
1780 | |
1781 | return 0; |
1782 | } |
1783 | |
1784 | static int bq24190_probe(struct i2c_client *client) |
1785 | { |
1786 | const struct i2c_device_id *id = i2c_client_get_device_id(client); |
1787 | struct i2c_adapter *adapter = client->adapter; |
1788 | struct device *dev = &client->dev; |
1789 | struct power_supply_config charger_cfg = {}, battery_cfg = {}; |
1790 | struct bq24190_dev_info *bdi; |
1791 | int ret; |
1792 | |
1793 | if (!i2c_check_functionality(adap: adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1794 | dev_err(dev, "No support for SMBUS_BYTE_DATA\n" ); |
1795 | return -ENODEV; |
1796 | } |
1797 | |
1798 | bdi = devm_kzalloc(dev, size: sizeof(*bdi), GFP_KERNEL); |
1799 | if (!bdi) { |
1800 | dev_err(dev, "Can't alloc bdi struct\n" ); |
1801 | return -ENOMEM; |
1802 | } |
1803 | |
1804 | bdi->client = client; |
1805 | bdi->dev = dev; |
1806 | strscpy(p: bdi->model_name, q: id->name, size: sizeof(bdi->model_name)); |
1807 | mutex_init(&bdi->f_reg_lock); |
1808 | bdi->charge_type = POWER_SUPPLY_CHARGE_TYPE_FAST; |
1809 | bdi->f_reg = 0; |
1810 | bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */ |
1811 | INIT_DELAYED_WORK(&bdi->input_current_limit_work, |
1812 | bq24190_input_current_limit_work); |
1813 | |
1814 | i2c_set_clientdata(client, data: bdi); |
1815 | |
1816 | if (client->irq <= 0) { |
1817 | dev_err(dev, "Can't get irq info\n" ); |
1818 | return -EINVAL; |
1819 | } |
1820 | |
1821 | bdi->edev = devm_extcon_dev_allocate(dev, cable: bq24190_usb_extcon_cable); |
1822 | if (IS_ERR(ptr: bdi->edev)) |
1823 | return PTR_ERR(ptr: bdi->edev); |
1824 | |
1825 | ret = devm_extcon_dev_register(dev, edev: bdi->edev); |
1826 | if (ret < 0) |
1827 | return ret; |
1828 | |
1829 | pm_runtime_enable(dev); |
1830 | pm_runtime_use_autosuspend(dev); |
1831 | pm_runtime_set_autosuspend_delay(dev, delay: 600); |
1832 | ret = pm_runtime_get_sync(dev); |
1833 | if (ret < 0) { |
1834 | dev_err(dev, "pm_runtime_get failed: %i\n" , ret); |
1835 | goto out_pmrt; |
1836 | } |
1837 | |
1838 | #ifdef CONFIG_SYSFS |
1839 | bq24190_sysfs_init_attrs(); |
1840 | charger_cfg.attr_grp = bq24190_sysfs_groups; |
1841 | #endif |
1842 | |
1843 | charger_cfg.drv_data = bdi; |
1844 | charger_cfg.of_node = dev->of_node; |
1845 | charger_cfg.supplied_to = bq24190_charger_supplied_to; |
1846 | charger_cfg.num_supplicants = ARRAY_SIZE(bq24190_charger_supplied_to); |
1847 | bdi->charger = power_supply_register(parent: dev, desc: &bq24190_charger_desc, |
1848 | cfg: &charger_cfg); |
1849 | if (IS_ERR(ptr: bdi->charger)) { |
1850 | dev_err(dev, "Can't register charger\n" ); |
1851 | ret = PTR_ERR(ptr: bdi->charger); |
1852 | goto out_pmrt; |
1853 | } |
1854 | |
1855 | /* the battery class is deprecated and will be removed. */ |
1856 | /* in the interim, this property hides it. */ |
1857 | if (!device_property_read_bool(dev, propname: "omit-battery-class" )) { |
1858 | battery_cfg.drv_data = bdi; |
1859 | bdi->battery = power_supply_register(parent: dev, desc: &bq24190_battery_desc, |
1860 | cfg: &battery_cfg); |
1861 | if (IS_ERR(ptr: bdi->battery)) { |
1862 | dev_err(dev, "Can't register battery\n" ); |
1863 | ret = PTR_ERR(ptr: bdi->battery); |
1864 | goto out_charger; |
1865 | } |
1866 | } |
1867 | |
1868 | ret = bq24190_get_config(bdi); |
1869 | if (ret < 0) { |
1870 | dev_err(dev, "Can't get devicetree config\n" ); |
1871 | goto out_charger; |
1872 | } |
1873 | |
1874 | ret = bq24190_hw_init(bdi); |
1875 | if (ret < 0) { |
1876 | dev_err(dev, "Hardware init failed\n" ); |
1877 | goto out_charger; |
1878 | } |
1879 | |
1880 | ret = bq24190_configure_usb_otg(bdi, ss_reg: bdi->ss_reg); |
1881 | if (ret < 0) |
1882 | goto out_charger; |
1883 | |
1884 | bdi->initialized = true; |
1885 | |
1886 | ret = devm_request_threaded_irq(dev, irq: client->irq, NULL, |
1887 | thread_fn: bq24190_irq_handler_thread, |
1888 | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, |
1889 | devname: "bq24190-charger" , dev_id: bdi); |
1890 | if (ret < 0) { |
1891 | dev_err(dev, "Can't set up irq handler\n" ); |
1892 | goto out_charger; |
1893 | } |
1894 | |
1895 | ret = bq24190_register_vbus_regulator(bdi); |
1896 | if (ret < 0) |
1897 | goto out_charger; |
1898 | |
1899 | enable_irq_wake(irq: client->irq); |
1900 | |
1901 | pm_runtime_mark_last_busy(dev); |
1902 | pm_runtime_put_autosuspend(dev); |
1903 | |
1904 | return 0; |
1905 | |
1906 | out_charger: |
1907 | if (!IS_ERR_OR_NULL(ptr: bdi->battery)) |
1908 | power_supply_unregister(psy: bdi->battery); |
1909 | power_supply_unregister(psy: bdi->charger); |
1910 | |
1911 | out_pmrt: |
1912 | pm_runtime_put_sync(dev); |
1913 | pm_runtime_dont_use_autosuspend(dev); |
1914 | pm_runtime_disable(dev); |
1915 | return ret; |
1916 | } |
1917 | |
1918 | static void bq24190_remove(struct i2c_client *client) |
1919 | { |
1920 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1921 | int error; |
1922 | |
1923 | cancel_delayed_work_sync(dwork: &bdi->input_current_limit_work); |
1924 | error = pm_runtime_resume_and_get(dev: bdi->dev); |
1925 | if (error < 0) |
1926 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , error); |
1927 | |
1928 | bq24190_register_reset(bdi); |
1929 | if (bdi->battery) |
1930 | power_supply_unregister(psy: bdi->battery); |
1931 | power_supply_unregister(psy: bdi->charger); |
1932 | if (error >= 0) |
1933 | pm_runtime_put_sync(dev: bdi->dev); |
1934 | pm_runtime_dont_use_autosuspend(dev: bdi->dev); |
1935 | pm_runtime_disable(dev: bdi->dev); |
1936 | } |
1937 | |
1938 | static void bq24190_shutdown(struct i2c_client *client) |
1939 | { |
1940 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1941 | |
1942 | /* Turn off 5V boost regulator on shutdown */ |
1943 | bq24190_set_otg_vbus(bdi, enable: false); |
1944 | } |
1945 | |
1946 | static __maybe_unused int bq24190_runtime_suspend(struct device *dev) |
1947 | { |
1948 | struct i2c_client *client = to_i2c_client(dev); |
1949 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1950 | |
1951 | if (!bdi->initialized) |
1952 | return 0; |
1953 | |
1954 | dev_dbg(bdi->dev, "%s\n" , __func__); |
1955 | |
1956 | return 0; |
1957 | } |
1958 | |
1959 | static __maybe_unused int bq24190_runtime_resume(struct device *dev) |
1960 | { |
1961 | struct i2c_client *client = to_i2c_client(dev); |
1962 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1963 | |
1964 | if (!bdi->initialized) |
1965 | return 0; |
1966 | |
1967 | if (!bdi->irq_event) { |
1968 | dev_dbg(bdi->dev, "checking events on possible wakeirq\n" ); |
1969 | bq24190_check_status(bdi); |
1970 | } |
1971 | |
1972 | return 0; |
1973 | } |
1974 | |
1975 | static __maybe_unused int bq24190_pm_suspend(struct device *dev) |
1976 | { |
1977 | struct i2c_client *client = to_i2c_client(dev); |
1978 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1979 | int error; |
1980 | |
1981 | error = pm_runtime_resume_and_get(dev: bdi->dev); |
1982 | if (error < 0) |
1983 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , error); |
1984 | |
1985 | bq24190_register_reset(bdi); |
1986 | |
1987 | if (error >= 0) { |
1988 | pm_runtime_mark_last_busy(dev: bdi->dev); |
1989 | pm_runtime_put_autosuspend(dev: bdi->dev); |
1990 | } |
1991 | |
1992 | return 0; |
1993 | } |
1994 | |
1995 | static __maybe_unused int bq24190_pm_resume(struct device *dev) |
1996 | { |
1997 | struct i2c_client *client = to_i2c_client(dev); |
1998 | struct bq24190_dev_info *bdi = i2c_get_clientdata(client); |
1999 | int error; |
2000 | |
2001 | bdi->f_reg = 0; |
2002 | bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */ |
2003 | |
2004 | error = pm_runtime_resume_and_get(dev: bdi->dev); |
2005 | if (error < 0) |
2006 | dev_warn(bdi->dev, "pm_runtime_get failed: %i\n" , error); |
2007 | |
2008 | bq24190_register_reset(bdi); |
2009 | bq24190_set_config(bdi); |
2010 | bq24190_read(bdi, BQ24190_REG_SS, data: &bdi->ss_reg); |
2011 | |
2012 | if (error >= 0) { |
2013 | pm_runtime_mark_last_busy(dev: bdi->dev); |
2014 | pm_runtime_put_autosuspend(dev: bdi->dev); |
2015 | } |
2016 | |
2017 | /* Things may have changed while suspended so alert upper layer */ |
2018 | power_supply_changed(psy: bdi->charger); |
2019 | if (bdi->battery) |
2020 | power_supply_changed(psy: bdi->battery); |
2021 | |
2022 | return 0; |
2023 | } |
2024 | |
2025 | static const struct dev_pm_ops bq24190_pm_ops = { |
2026 | SET_RUNTIME_PM_OPS(bq24190_runtime_suspend, bq24190_runtime_resume, |
2027 | NULL) |
2028 | SET_SYSTEM_SLEEP_PM_OPS(bq24190_pm_suspend, bq24190_pm_resume) |
2029 | }; |
2030 | |
2031 | static const struct i2c_device_id bq24190_i2c_ids[] = { |
2032 | { "bq24190" }, |
2033 | { "bq24192" }, |
2034 | { "bq24192i" }, |
2035 | { "bq24196" }, |
2036 | { }, |
2037 | }; |
2038 | MODULE_DEVICE_TABLE(i2c, bq24190_i2c_ids); |
2039 | |
2040 | static const struct of_device_id bq24190_of_match[] = { |
2041 | { .compatible = "ti,bq24190" , }, |
2042 | { .compatible = "ti,bq24192" , }, |
2043 | { .compatible = "ti,bq24192i" , }, |
2044 | { .compatible = "ti,bq24196" , }, |
2045 | { }, |
2046 | }; |
2047 | MODULE_DEVICE_TABLE(of, bq24190_of_match); |
2048 | |
2049 | static struct i2c_driver bq24190_driver = { |
2050 | .probe = bq24190_probe, |
2051 | .remove = bq24190_remove, |
2052 | .shutdown = bq24190_shutdown, |
2053 | .id_table = bq24190_i2c_ids, |
2054 | .driver = { |
2055 | .name = "bq24190-charger" , |
2056 | .pm = &bq24190_pm_ops, |
2057 | .of_match_table = bq24190_of_match, |
2058 | }, |
2059 | }; |
2060 | module_i2c_driver(bq24190_driver); |
2061 | |
2062 | MODULE_LICENSE("GPL" ); |
2063 | MODULE_AUTHOR("Mark A. Greer <mgreer@animalcreek.com>" ); |
2064 | MODULE_DESCRIPTION("TI BQ24190 Charger Driver" ); |
2065 | |