1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs |
4 | * |
5 | * http://www.active-semi.com/products/power-management-units/act88xx/ |
6 | * |
7 | * Copyright (C) 2013 Atmel Corporation |
8 | */ |
9 | |
10 | #include <linux/module.h> |
11 | #include <linux/init.h> |
12 | #include <linux/i2c.h> |
13 | #include <linux/err.h> |
14 | #include <linux/platform_device.h> |
15 | #include <linux/regulator/driver.h> |
16 | #include <linux/regulator/act8865.h> |
17 | #include <linux/of.h> |
18 | #include <linux/of_device.h> |
19 | #include <linux/power_supply.h> |
20 | #include <linux/regulator/of_regulator.h> |
21 | #include <linux/regmap.h> |
22 | #include <dt-bindings/regulator/active-semi,8865-regulator.h> |
23 | |
24 | /* |
25 | * ACT8600 Global Register Map. |
26 | */ |
27 | #define ACT8600_SYS_MODE 0x00 |
28 | #define ACT8600_SYS_CTRL 0x01 |
29 | #define ACT8600_DCDC1_VSET 0x10 |
30 | #define ACT8600_DCDC1_CTRL 0x12 |
31 | #define ACT8600_DCDC2_VSET 0x20 |
32 | #define ACT8600_DCDC2_CTRL 0x22 |
33 | #define ACT8600_DCDC3_VSET 0x30 |
34 | #define ACT8600_DCDC3_CTRL 0x32 |
35 | #define ACT8600_SUDCDC4_VSET 0x40 |
36 | #define ACT8600_SUDCDC4_CTRL 0x41 |
37 | #define ACT8600_LDO5_VSET 0x50 |
38 | #define ACT8600_LDO5_CTRL 0x51 |
39 | #define ACT8600_LDO6_VSET 0x60 |
40 | #define ACT8600_LDO6_CTRL 0x61 |
41 | #define ACT8600_LDO7_VSET 0x70 |
42 | #define ACT8600_LDO7_CTRL 0x71 |
43 | #define ACT8600_LDO8_VSET 0x80 |
44 | #define ACT8600_LDO8_CTRL 0x81 |
45 | #define ACT8600_LDO910_CTRL 0x91 |
46 | #define ACT8600_APCH0 0xA1 |
47 | #define ACT8600_APCH1 0xA8 |
48 | #define ACT8600_APCH2 0xA9 |
49 | #define ACT8600_APCH_STAT 0xAA |
50 | #define ACT8600_OTG0 0xB0 |
51 | #define ACT8600_OTG1 0xB2 |
52 | |
53 | /* |
54 | * ACT8846 Global Register Map. |
55 | */ |
56 | #define ACT8846_SYS0 0x00 |
57 | #define ACT8846_SYS1 0x01 |
58 | #define ACT8846_REG1_VSET 0x10 |
59 | #define ACT8846_REG1_CTRL 0x12 |
60 | #define ACT8846_REG2_VSET0 0x20 |
61 | #define ACT8846_REG2_VSET1 0x21 |
62 | #define ACT8846_REG2_CTRL 0x22 |
63 | #define ACT8846_REG3_VSET0 0x30 |
64 | #define ACT8846_REG3_VSET1 0x31 |
65 | #define ACT8846_REG3_CTRL 0x32 |
66 | #define ACT8846_REG4_VSET0 0x40 |
67 | #define ACT8846_REG4_VSET1 0x41 |
68 | #define ACT8846_REG4_CTRL 0x42 |
69 | #define ACT8846_REG5_VSET 0x50 |
70 | #define ACT8846_REG5_CTRL 0x51 |
71 | #define ACT8846_REG6_VSET 0x58 |
72 | #define ACT8846_REG6_CTRL 0x59 |
73 | #define ACT8846_REG7_VSET 0x60 |
74 | #define ACT8846_REG7_CTRL 0x61 |
75 | #define ACT8846_REG8_VSET 0x68 |
76 | #define ACT8846_REG8_CTRL 0x69 |
77 | #define ACT8846_REG9_VSET 0x70 |
78 | #define ACT8846_REG9_CTRL 0x71 |
79 | #define ACT8846_REG10_VSET 0x80 |
80 | #define ACT8846_REG10_CTRL 0x81 |
81 | #define ACT8846_REG11_VSET 0x90 |
82 | #define ACT8846_REG11_CTRL 0x91 |
83 | #define ACT8846_REG12_VSET 0xa0 |
84 | #define ACT8846_REG12_CTRL 0xa1 |
85 | #define ACT8846_REG13_CTRL 0xb1 |
86 | #define ACT8846_GLB_OFF_CTRL 0xc3 |
87 | #define ACT8846_OFF_SYSMASK 0x18 |
88 | |
89 | /* |
90 | * ACT8865 Global Register Map. |
91 | */ |
92 | #define ACT8865_SYS_MODE 0x00 |
93 | #define ACT8865_SYS_CTRL 0x01 |
94 | #define ACT8865_SYS_UNLK_REGS 0x0b |
95 | #define ACT8865_DCDC1_VSET1 0x20 |
96 | #define ACT8865_DCDC1_VSET2 0x21 |
97 | #define ACT8865_DCDC1_CTRL 0x22 |
98 | #define ACT8865_DCDC1_SUS 0x24 |
99 | #define ACT8865_DCDC2_VSET1 0x30 |
100 | #define ACT8865_DCDC2_VSET2 0x31 |
101 | #define ACT8865_DCDC2_CTRL 0x32 |
102 | #define ACT8865_DCDC2_SUS 0x34 |
103 | #define ACT8865_DCDC3_VSET1 0x40 |
104 | #define ACT8865_DCDC3_VSET2 0x41 |
105 | #define ACT8865_DCDC3_CTRL 0x42 |
106 | #define ACT8865_DCDC3_SUS 0x44 |
107 | #define ACT8865_LDO1_VSET 0x50 |
108 | #define ACT8865_LDO1_CTRL 0x51 |
109 | #define ACT8865_LDO1_SUS 0x52 |
110 | #define ACT8865_LDO2_VSET 0x54 |
111 | #define ACT8865_LDO2_CTRL 0x55 |
112 | #define ACT8865_LDO2_SUS 0x56 |
113 | #define ACT8865_LDO3_VSET 0x60 |
114 | #define ACT8865_LDO3_CTRL 0x61 |
115 | #define ACT8865_LDO3_SUS 0x62 |
116 | #define ACT8865_LDO4_VSET 0x64 |
117 | #define ACT8865_LDO4_CTRL 0x65 |
118 | #define ACT8865_LDO4_SUS 0x66 |
119 | #define ACT8865_MSTROFF 0x20 |
120 | |
121 | /* |
122 | * Field Definitions. |
123 | */ |
124 | #define ACT8865_ENA 0x80 /* ON - [7] */ |
125 | #define ACT8865_DIS 0x40 /* DIS - [6] */ |
126 | |
127 | #define ACT8865_VSEL_MASK 0x3F /* VSET - [5:0] */ |
128 | |
129 | |
130 | #define ACT8600_LDO10_ENA 0x40 /* ON - [6] */ |
131 | #define ACT8600_SUDCDC_VSEL_MASK 0xFF /* SUDCDC VSET - [7:0] */ |
132 | |
133 | #define ACT8600_APCH_CHG_ACIN BIT(7) |
134 | #define ACT8600_APCH_CHG_USB BIT(6) |
135 | #define ACT8600_APCH_CSTATE0 BIT(5) |
136 | #define ACT8600_APCH_CSTATE1 BIT(4) |
137 | |
138 | /* |
139 | * ACT8865 voltage number |
140 | */ |
141 | #define ACT8865_VOLTAGE_NUM 64 |
142 | #define ACT8600_SUDCDC_VOLTAGE_NUM 256 |
143 | |
144 | struct act8865 { |
145 | struct regmap *regmap; |
146 | int off_reg; |
147 | int off_mask; |
148 | }; |
149 | |
150 | static const struct regmap_range act8600_reg_ranges[] = { |
151 | regmap_reg_range(0x00, 0x01), |
152 | regmap_reg_range(0x10, 0x10), |
153 | regmap_reg_range(0x12, 0x12), |
154 | regmap_reg_range(0x20, 0x20), |
155 | regmap_reg_range(0x22, 0x22), |
156 | regmap_reg_range(0x30, 0x30), |
157 | regmap_reg_range(0x32, 0x32), |
158 | regmap_reg_range(0x40, 0x41), |
159 | regmap_reg_range(0x50, 0x51), |
160 | regmap_reg_range(0x60, 0x61), |
161 | regmap_reg_range(0x70, 0x71), |
162 | regmap_reg_range(0x80, 0x81), |
163 | regmap_reg_range(0x91, 0x91), |
164 | regmap_reg_range(0xA1, 0xA1), |
165 | regmap_reg_range(0xA8, 0xAA), |
166 | regmap_reg_range(0xB0, 0xB0), |
167 | regmap_reg_range(0xB2, 0xB2), |
168 | regmap_reg_range(0xC1, 0xC1), |
169 | }; |
170 | |
171 | static const struct regmap_range act8600_reg_ro_ranges[] = { |
172 | regmap_reg_range(0xAA, 0xAA), |
173 | regmap_reg_range(0xC1, 0xC1), |
174 | }; |
175 | |
176 | static const struct regmap_range act8600_reg_volatile_ranges[] = { |
177 | regmap_reg_range(0x00, 0x01), |
178 | regmap_reg_range(0x12, 0x12), |
179 | regmap_reg_range(0x22, 0x22), |
180 | regmap_reg_range(0x32, 0x32), |
181 | regmap_reg_range(0x41, 0x41), |
182 | regmap_reg_range(0x51, 0x51), |
183 | regmap_reg_range(0x61, 0x61), |
184 | regmap_reg_range(0x71, 0x71), |
185 | regmap_reg_range(0x81, 0x81), |
186 | regmap_reg_range(0xA8, 0xA8), |
187 | regmap_reg_range(0xAA, 0xAA), |
188 | regmap_reg_range(0xB0, 0xB0), |
189 | regmap_reg_range(0xC1, 0xC1), |
190 | }; |
191 | |
192 | static const struct regmap_access_table act8600_write_ranges_table = { |
193 | .yes_ranges = act8600_reg_ranges, |
194 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges), |
195 | .no_ranges = act8600_reg_ro_ranges, |
196 | .n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges), |
197 | }; |
198 | |
199 | static const struct regmap_access_table act8600_read_ranges_table = { |
200 | .yes_ranges = act8600_reg_ranges, |
201 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges), |
202 | }; |
203 | |
204 | static const struct regmap_access_table act8600_volatile_ranges_table = { |
205 | .yes_ranges = act8600_reg_volatile_ranges, |
206 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges), |
207 | }; |
208 | |
209 | static const struct regmap_config act8600_regmap_config = { |
210 | .reg_bits = 8, |
211 | .val_bits = 8, |
212 | .max_register = 0xFF, |
213 | .wr_table = &act8600_write_ranges_table, |
214 | .rd_table = &act8600_read_ranges_table, |
215 | .volatile_table = &act8600_volatile_ranges_table, |
216 | }; |
217 | |
218 | static const struct regmap_config act8865_regmap_config = { |
219 | .reg_bits = 8, |
220 | .val_bits = 8, |
221 | }; |
222 | |
223 | static const struct linear_range act8865_voltage_ranges[] = { |
224 | REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), |
225 | REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), |
226 | REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), |
227 | }; |
228 | |
229 | static const struct linear_range act8600_sudcdc_voltage_ranges[] = { |
230 | REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0), |
231 | REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000), |
232 | REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000), |
233 | REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000), |
234 | REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0), |
235 | }; |
236 | |
237 | static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable) |
238 | { |
239 | struct regmap *regmap = rdev->regmap; |
240 | int id = rdev->desc->id, reg, val; |
241 | |
242 | switch (id) { |
243 | case ACT8865_ID_DCDC1: |
244 | reg = ACT8865_DCDC1_SUS; |
245 | val = 0xa8; |
246 | break; |
247 | case ACT8865_ID_DCDC2: |
248 | reg = ACT8865_DCDC2_SUS; |
249 | val = 0xa8; |
250 | break; |
251 | case ACT8865_ID_DCDC3: |
252 | reg = ACT8865_DCDC3_SUS; |
253 | val = 0xa8; |
254 | break; |
255 | case ACT8865_ID_LDO1: |
256 | reg = ACT8865_LDO1_SUS; |
257 | val = 0xe8; |
258 | break; |
259 | case ACT8865_ID_LDO2: |
260 | reg = ACT8865_LDO2_SUS; |
261 | val = 0xe8; |
262 | break; |
263 | case ACT8865_ID_LDO3: |
264 | reg = ACT8865_LDO3_SUS; |
265 | val = 0xe8; |
266 | break; |
267 | case ACT8865_ID_LDO4: |
268 | reg = ACT8865_LDO4_SUS; |
269 | val = 0xe8; |
270 | break; |
271 | default: |
272 | return -EINVAL; |
273 | } |
274 | |
275 | if (enable) |
276 | val |= BIT(4); |
277 | |
278 | /* |
279 | * Ask the PMIC to enable/disable this output when entering hibernate |
280 | * mode. |
281 | */ |
282 | return regmap_write(map: regmap, reg, val); |
283 | } |
284 | |
285 | static int act8865_set_suspend_enable(struct regulator_dev *rdev) |
286 | { |
287 | return act8865_set_suspend_state(rdev, enable: true); |
288 | } |
289 | |
290 | static int act8865_set_suspend_disable(struct regulator_dev *rdev) |
291 | { |
292 | return act8865_set_suspend_state(rdev, enable: false); |
293 | } |
294 | |
295 | static unsigned int act8865_of_map_mode(unsigned int mode) |
296 | { |
297 | switch (mode) { |
298 | case ACT8865_REGULATOR_MODE_FIXED: |
299 | return REGULATOR_MODE_FAST; |
300 | case ACT8865_REGULATOR_MODE_NORMAL: |
301 | return REGULATOR_MODE_NORMAL; |
302 | case ACT8865_REGULATOR_MODE_LOWPOWER: |
303 | return REGULATOR_MODE_STANDBY; |
304 | default: |
305 | return REGULATOR_MODE_INVALID; |
306 | } |
307 | } |
308 | |
309 | static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode) |
310 | { |
311 | struct regmap *regmap = rdev->regmap; |
312 | int id = rdev_get_id(rdev); |
313 | int reg, val = 0; |
314 | |
315 | switch (id) { |
316 | case ACT8865_ID_DCDC1: |
317 | reg = ACT8865_DCDC1_CTRL; |
318 | break; |
319 | case ACT8865_ID_DCDC2: |
320 | reg = ACT8865_DCDC2_CTRL; |
321 | break; |
322 | case ACT8865_ID_DCDC3: |
323 | reg = ACT8865_DCDC3_CTRL; |
324 | break; |
325 | case ACT8865_ID_LDO1: |
326 | reg = ACT8865_LDO1_CTRL; |
327 | break; |
328 | case ACT8865_ID_LDO2: |
329 | reg = ACT8865_LDO2_CTRL; |
330 | break; |
331 | case ACT8865_ID_LDO3: |
332 | reg = ACT8865_LDO3_CTRL; |
333 | break; |
334 | case ACT8865_ID_LDO4: |
335 | reg = ACT8865_LDO4_CTRL; |
336 | break; |
337 | default: |
338 | return -EINVAL; |
339 | } |
340 | |
341 | switch (mode) { |
342 | case REGULATOR_MODE_FAST: |
343 | case REGULATOR_MODE_NORMAL: |
344 | if (id <= ACT8865_ID_DCDC3) |
345 | val = BIT(5); |
346 | break; |
347 | case REGULATOR_MODE_STANDBY: |
348 | if (id > ACT8865_ID_DCDC3) |
349 | val = BIT(5); |
350 | break; |
351 | default: |
352 | return -EINVAL; |
353 | } |
354 | |
355 | return regmap_update_bits(map: regmap, reg, BIT(5), val); |
356 | } |
357 | |
358 | static unsigned int act8865_get_mode(struct regulator_dev *rdev) |
359 | { |
360 | struct regmap *regmap = rdev->regmap; |
361 | int id = rdev_get_id(rdev); |
362 | int reg, ret, val = 0; |
363 | |
364 | switch (id) { |
365 | case ACT8865_ID_DCDC1: |
366 | reg = ACT8865_DCDC1_CTRL; |
367 | break; |
368 | case ACT8865_ID_DCDC2: |
369 | reg = ACT8865_DCDC2_CTRL; |
370 | break; |
371 | case ACT8865_ID_DCDC3: |
372 | reg = ACT8865_DCDC3_CTRL; |
373 | break; |
374 | case ACT8865_ID_LDO1: |
375 | reg = ACT8865_LDO1_CTRL; |
376 | break; |
377 | case ACT8865_ID_LDO2: |
378 | reg = ACT8865_LDO2_CTRL; |
379 | break; |
380 | case ACT8865_ID_LDO3: |
381 | reg = ACT8865_LDO3_CTRL; |
382 | break; |
383 | case ACT8865_ID_LDO4: |
384 | reg = ACT8865_LDO4_CTRL; |
385 | break; |
386 | default: |
387 | return -EINVAL; |
388 | } |
389 | |
390 | ret = regmap_read(map: regmap, reg, val: &val); |
391 | if (ret) |
392 | return ret; |
393 | |
394 | if (id <= ACT8865_ID_DCDC3 && (val & BIT(5))) |
395 | return REGULATOR_MODE_FAST; |
396 | else if (id > ACT8865_ID_DCDC3 && !(val & BIT(5))) |
397 | return REGULATOR_MODE_NORMAL; |
398 | else |
399 | return REGULATOR_MODE_STANDBY; |
400 | } |
401 | |
402 | static const struct regulator_ops act8865_ops = { |
403 | .list_voltage = regulator_list_voltage_linear_range, |
404 | .map_voltage = regulator_map_voltage_linear_range, |
405 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
406 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
407 | .enable = regulator_enable_regmap, |
408 | .disable = regulator_disable_regmap, |
409 | .set_mode = act8865_set_mode, |
410 | .get_mode = act8865_get_mode, |
411 | .is_enabled = regulator_is_enabled_regmap, |
412 | .set_suspend_enable = act8865_set_suspend_enable, |
413 | .set_suspend_disable = act8865_set_suspend_disable, |
414 | }; |
415 | |
416 | static const struct regulator_ops act8865_ldo_ops = { |
417 | .list_voltage = regulator_list_voltage_linear_range, |
418 | .map_voltage = regulator_map_voltage_linear_range, |
419 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
420 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
421 | .enable = regulator_enable_regmap, |
422 | .disable = regulator_disable_regmap, |
423 | .set_mode = act8865_set_mode, |
424 | .get_mode = act8865_get_mode, |
425 | .is_enabled = regulator_is_enabled_regmap, |
426 | .set_suspend_enable = act8865_set_suspend_enable, |
427 | .set_suspend_disable = act8865_set_suspend_disable, |
428 | .set_pull_down = regulator_set_pull_down_regmap, |
429 | }; |
430 | |
431 | static const struct regulator_ops act8865_fixed_ldo_ops = { |
432 | .enable = regulator_enable_regmap, |
433 | .disable = regulator_disable_regmap, |
434 | .is_enabled = regulator_is_enabled_regmap, |
435 | }; |
436 | |
437 | #define ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, _ops) \ |
438 | [_family##_ID_##_id] = { \ |
439 | .name = _name, \ |
440 | .of_match = of_match_ptr(_name), \ |
441 | .of_map_mode = act8865_of_map_mode, \ |
442 | .regulators_node = of_match_ptr("regulators"), \ |
443 | .supply_name = _supply, \ |
444 | .id = _family##_ID_##_id, \ |
445 | .type = REGULATOR_VOLTAGE, \ |
446 | .ops = _ops, \ |
447 | .n_voltages = ACT8865_VOLTAGE_NUM, \ |
448 | .linear_ranges = act8865_voltage_ranges, \ |
449 | .n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \ |
450 | .vsel_reg = _family##_##_id##_##_vsel_reg, \ |
451 | .vsel_mask = ACT8865_VSEL_MASK, \ |
452 | .enable_reg = _family##_##_id##_CTRL, \ |
453 | .enable_mask = ACT8865_ENA, \ |
454 | .pull_down_reg = _family##_##_id##_CTRL, \ |
455 | .pull_down_mask = ACT8865_DIS, \ |
456 | .owner = THIS_MODULE, \ |
457 | } |
458 | |
459 | #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \ |
460 | ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ops) |
461 | |
462 | #define ACT88xx_LDO(_name, _family, _id, _vsel_reg, _supply) \ |
463 | ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ldo_ops) |
464 | |
465 | static const struct regulator_desc act8600_regulators[] = { |
466 | ACT88xx_REG("DCDC1" , ACT8600, DCDC1, VSET, "vp1" ), |
467 | ACT88xx_REG("DCDC2" , ACT8600, DCDC2, VSET, "vp2" ), |
468 | ACT88xx_REG("DCDC3" , ACT8600, DCDC3, VSET, "vp3" ), |
469 | { |
470 | .name = "SUDCDC_REG4" , |
471 | .of_match = of_match_ptr("SUDCDC_REG4" ), |
472 | .regulators_node = of_match_ptr("regulators" ), |
473 | .id = ACT8600_ID_SUDCDC4, |
474 | .ops = &act8865_ops, |
475 | .type = REGULATOR_VOLTAGE, |
476 | .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM, |
477 | .linear_ranges = act8600_sudcdc_voltage_ranges, |
478 | .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges), |
479 | .vsel_reg = ACT8600_SUDCDC4_VSET, |
480 | .vsel_mask = ACT8600_SUDCDC_VSEL_MASK, |
481 | .enable_reg = ACT8600_SUDCDC4_CTRL, |
482 | .enable_mask = ACT8865_ENA, |
483 | .owner = THIS_MODULE, |
484 | }, |
485 | ACT88xx_REG("LDO5" , ACT8600, LDO5, VSET, "inl" ), |
486 | ACT88xx_REG("LDO6" , ACT8600, LDO6, VSET, "inl" ), |
487 | ACT88xx_REG("LDO7" , ACT8600, LDO7, VSET, "inl" ), |
488 | ACT88xx_REG("LDO8" , ACT8600, LDO8, VSET, "inl" ), |
489 | { |
490 | .name = "LDO_REG9" , |
491 | .of_match = of_match_ptr("LDO_REG9" ), |
492 | .regulators_node = of_match_ptr("regulators" ), |
493 | .id = ACT8600_ID_LDO9, |
494 | .ops = &act8865_fixed_ldo_ops, |
495 | .type = REGULATOR_VOLTAGE, |
496 | .n_voltages = 1, |
497 | .fixed_uV = 3300000, |
498 | .enable_reg = ACT8600_LDO910_CTRL, |
499 | .enable_mask = ACT8865_ENA, |
500 | .owner = THIS_MODULE, |
501 | }, |
502 | { |
503 | .name = "LDO_REG10" , |
504 | .of_match = of_match_ptr("LDO_REG10" ), |
505 | .regulators_node = of_match_ptr("regulators" ), |
506 | .id = ACT8600_ID_LDO10, |
507 | .ops = &act8865_fixed_ldo_ops, |
508 | .type = REGULATOR_VOLTAGE, |
509 | .n_voltages = 1, |
510 | .fixed_uV = 1200000, |
511 | .enable_reg = ACT8600_LDO910_CTRL, |
512 | .enable_mask = ACT8600_LDO10_ENA, |
513 | .owner = THIS_MODULE, |
514 | }, |
515 | }; |
516 | |
517 | static const struct regulator_desc act8846_regulators[] = { |
518 | ACT88xx_REG("REG1" , ACT8846, REG1, VSET, "vp1" ), |
519 | ACT88xx_REG("REG2" , ACT8846, REG2, VSET0, "vp2" ), |
520 | ACT88xx_REG("REG3" , ACT8846, REG3, VSET0, "vp3" ), |
521 | ACT88xx_REG("REG4" , ACT8846, REG4, VSET0, "vp4" ), |
522 | ACT88xx_REG("REG5" , ACT8846, REG5, VSET, "inl1" ), |
523 | ACT88xx_REG("REG6" , ACT8846, REG6, VSET, "inl1" ), |
524 | ACT88xx_REG("REG7" , ACT8846, REG7, VSET, "inl1" ), |
525 | ACT88xx_REG("REG8" , ACT8846, REG8, VSET, "inl2" ), |
526 | ACT88xx_REG("REG9" , ACT8846, REG9, VSET, "inl2" ), |
527 | ACT88xx_REG("REG10" , ACT8846, REG10, VSET, "inl3" ), |
528 | ACT88xx_REG("REG11" , ACT8846, REG11, VSET, "inl3" ), |
529 | ACT88xx_REG("REG12" , ACT8846, REG12, VSET, "inl3" ), |
530 | }; |
531 | |
532 | static const struct regulator_desc act8865_regulators[] = { |
533 | ACT88xx_REG("DCDC_REG1" , ACT8865, DCDC1, VSET1, "vp1" ), |
534 | ACT88xx_REG("DCDC_REG2" , ACT8865, DCDC2, VSET1, "vp2" ), |
535 | ACT88xx_REG("DCDC_REG3" , ACT8865, DCDC3, VSET1, "vp3" ), |
536 | ACT88xx_LDO("LDO_REG1" , ACT8865, LDO1, VSET, "inl45" ), |
537 | ACT88xx_LDO("LDO_REG2" , ACT8865, LDO2, VSET, "inl45" ), |
538 | ACT88xx_LDO("LDO_REG3" , ACT8865, LDO3, VSET, "inl67" ), |
539 | ACT88xx_LDO("LDO_REG4" , ACT8865, LDO4, VSET, "inl67" ), |
540 | }; |
541 | |
542 | static const struct regulator_desc act8865_alt_regulators[] = { |
543 | ACT88xx_REG("DCDC_REG1" , ACT8865, DCDC1, VSET2, "vp1" ), |
544 | ACT88xx_REG("DCDC_REG2" , ACT8865, DCDC2, VSET2, "vp2" ), |
545 | ACT88xx_REG("DCDC_REG3" , ACT8865, DCDC3, VSET2, "vp3" ), |
546 | ACT88xx_LDO("LDO_REG1" , ACT8865, LDO1, VSET, "inl45" ), |
547 | ACT88xx_LDO("LDO_REG2" , ACT8865, LDO2, VSET, "inl45" ), |
548 | ACT88xx_LDO("LDO_REG3" , ACT8865, LDO3, VSET, "inl67" ), |
549 | ACT88xx_LDO("LDO_REG4" , ACT8865, LDO4, VSET, "inl67" ), |
550 | }; |
551 | |
552 | #ifdef CONFIG_OF |
553 | static const struct of_device_id act8865_dt_ids[] = { |
554 | { .compatible = "active-semi,act8600" , .data = (void *)ACT8600 }, |
555 | { .compatible = "active-semi,act8846" , .data = (void *)ACT8846 }, |
556 | { .compatible = "active-semi,act8865" , .data = (void *)ACT8865 }, |
557 | { } |
558 | }; |
559 | MODULE_DEVICE_TABLE(of, act8865_dt_ids); |
560 | #endif |
561 | |
562 | static struct act8865_regulator_data *act8865_get_regulator_data( |
563 | int id, struct act8865_platform_data *pdata) |
564 | { |
565 | int i; |
566 | |
567 | for (i = 0; i < pdata->num_regulators; i++) { |
568 | if (pdata->regulators[i].id == id) |
569 | return &pdata->regulators[i]; |
570 | } |
571 | |
572 | return NULL; |
573 | } |
574 | |
575 | static struct i2c_client *act8865_i2c_client; |
576 | static void act8865_power_off(void) |
577 | { |
578 | struct act8865 *act8865; |
579 | |
580 | act8865 = i2c_get_clientdata(client: act8865_i2c_client); |
581 | regmap_write(map: act8865->regmap, reg: act8865->off_reg, val: act8865->off_mask); |
582 | while (1); |
583 | } |
584 | |
585 | static int act8600_charger_get_status(struct regmap *map) |
586 | { |
587 | unsigned int val; |
588 | int ret; |
589 | u8 state0, state1; |
590 | |
591 | ret = regmap_read(map, ACT8600_APCH_STAT, val: &val); |
592 | if (ret < 0) |
593 | return ret; |
594 | |
595 | state0 = val & ACT8600_APCH_CSTATE0; |
596 | state1 = val & ACT8600_APCH_CSTATE1; |
597 | |
598 | if (state0 && !state1) |
599 | return POWER_SUPPLY_STATUS_CHARGING; |
600 | if (!state0 && state1) |
601 | return POWER_SUPPLY_STATUS_NOT_CHARGING; |
602 | if (!state0 && !state1) |
603 | return POWER_SUPPLY_STATUS_DISCHARGING; |
604 | |
605 | return POWER_SUPPLY_STATUS_UNKNOWN; |
606 | } |
607 | |
608 | static int act8600_charger_get_property(struct power_supply *psy, |
609 | enum power_supply_property psp, union power_supply_propval *val) |
610 | { |
611 | struct regmap *map = power_supply_get_drvdata(psy); |
612 | int ret; |
613 | |
614 | switch (psp) { |
615 | case POWER_SUPPLY_PROP_STATUS: |
616 | ret = act8600_charger_get_status(map); |
617 | if (ret < 0) |
618 | return ret; |
619 | |
620 | val->intval = ret; |
621 | break; |
622 | default: |
623 | return -EINVAL; |
624 | } |
625 | |
626 | return 0; |
627 | } |
628 | |
629 | static enum power_supply_property act8600_charger_properties[] = { |
630 | POWER_SUPPLY_PROP_STATUS, |
631 | }; |
632 | |
633 | static const struct power_supply_desc act8600_charger_desc = { |
634 | .name = "act8600-charger" , |
635 | .type = POWER_SUPPLY_TYPE_BATTERY, |
636 | .properties = act8600_charger_properties, |
637 | .num_properties = ARRAY_SIZE(act8600_charger_properties), |
638 | .get_property = act8600_charger_get_property, |
639 | }; |
640 | |
641 | static int act8600_charger_probe(struct device *dev, struct regmap *regmap) |
642 | { |
643 | struct power_supply *charger; |
644 | struct power_supply_config cfg = { |
645 | .drv_data = regmap, |
646 | .of_node = dev->of_node, |
647 | }; |
648 | |
649 | charger = devm_power_supply_register(parent: dev, desc: &act8600_charger_desc, cfg: &cfg); |
650 | |
651 | return PTR_ERR_OR_ZERO(ptr: charger); |
652 | } |
653 | |
654 | static int act8865_pmic_probe(struct i2c_client *client) |
655 | { |
656 | const struct i2c_device_id *i2c_id = i2c_client_get_device_id(client); |
657 | const struct regulator_desc *regulators; |
658 | struct act8865_platform_data *pdata = NULL; |
659 | struct device *dev = &client->dev; |
660 | int i, ret, num_regulators; |
661 | struct act8865 *act8865; |
662 | const struct regmap_config *regmap_config; |
663 | unsigned long type; |
664 | int off_reg, off_mask; |
665 | int voltage_select = 0; |
666 | |
667 | if (dev->of_node) { |
668 | const struct of_device_id *id; |
669 | |
670 | id = of_match_device(of_match_ptr(act8865_dt_ids), dev); |
671 | if (!id) |
672 | return -ENODEV; |
673 | |
674 | type = (unsigned long) id->data; |
675 | |
676 | voltage_select = !!of_get_property(node: dev->of_node, |
677 | name: "active-semi,vsel-high" , |
678 | NULL); |
679 | } else { |
680 | type = i2c_id->driver_data; |
681 | pdata = dev_get_platdata(dev); |
682 | } |
683 | |
684 | switch (type) { |
685 | case ACT8600: |
686 | regulators = act8600_regulators; |
687 | num_regulators = ARRAY_SIZE(act8600_regulators); |
688 | regmap_config = &act8600_regmap_config; |
689 | off_reg = -1; |
690 | off_mask = -1; |
691 | break; |
692 | case ACT8846: |
693 | regulators = act8846_regulators; |
694 | num_regulators = ARRAY_SIZE(act8846_regulators); |
695 | regmap_config = &act8865_regmap_config; |
696 | off_reg = ACT8846_GLB_OFF_CTRL; |
697 | off_mask = ACT8846_OFF_SYSMASK; |
698 | break; |
699 | case ACT8865: |
700 | if (voltage_select) { |
701 | regulators = act8865_alt_regulators; |
702 | num_regulators = ARRAY_SIZE(act8865_alt_regulators); |
703 | } else { |
704 | regulators = act8865_regulators; |
705 | num_regulators = ARRAY_SIZE(act8865_regulators); |
706 | } |
707 | regmap_config = &act8865_regmap_config; |
708 | off_reg = ACT8865_SYS_CTRL; |
709 | off_mask = ACT8865_MSTROFF; |
710 | break; |
711 | default: |
712 | dev_err(dev, "invalid device id %lu\n" , type); |
713 | return -EINVAL; |
714 | } |
715 | |
716 | act8865 = devm_kzalloc(dev, size: sizeof(struct act8865), GFP_KERNEL); |
717 | if (!act8865) |
718 | return -ENOMEM; |
719 | |
720 | act8865->regmap = devm_regmap_init_i2c(client, regmap_config); |
721 | if (IS_ERR(ptr: act8865->regmap)) { |
722 | ret = PTR_ERR(ptr: act8865->regmap); |
723 | dev_err(dev, "Failed to allocate register map: %d\n" , ret); |
724 | return ret; |
725 | } |
726 | |
727 | if (of_device_is_system_power_controller(np: dev->of_node)) { |
728 | if (!pm_power_off && (off_reg > 0)) { |
729 | act8865_i2c_client = client; |
730 | act8865->off_reg = off_reg; |
731 | act8865->off_mask = off_mask; |
732 | pm_power_off = act8865_power_off; |
733 | } else { |
734 | dev_err(dev, "Failed to set poweroff capability, already defined\n" ); |
735 | } |
736 | } |
737 | |
738 | /* Finally register devices */ |
739 | for (i = 0; i < num_regulators; i++) { |
740 | const struct regulator_desc *desc = ®ulators[i]; |
741 | struct regulator_config config = { }; |
742 | struct regulator_dev *rdev; |
743 | |
744 | config.dev = dev; |
745 | config.driver_data = act8865; |
746 | config.regmap = act8865->regmap; |
747 | |
748 | if (pdata) { |
749 | struct act8865_regulator_data *rdata; |
750 | |
751 | rdata = act8865_get_regulator_data(id: desc->id, pdata); |
752 | if (rdata) { |
753 | config.init_data = rdata->init_data; |
754 | config.of_node = rdata->of_node; |
755 | } |
756 | } |
757 | |
758 | rdev = devm_regulator_register(dev, regulator_desc: desc, config: &config); |
759 | if (IS_ERR(ptr: rdev)) { |
760 | dev_err(dev, "failed to register %s\n" , desc->name); |
761 | return PTR_ERR(ptr: rdev); |
762 | } |
763 | } |
764 | |
765 | if (type == ACT8600) { |
766 | ret = act8600_charger_probe(dev, regmap: act8865->regmap); |
767 | if (ret < 0) { |
768 | if (ret != -EPROBE_DEFER) |
769 | dev_err(dev, "Failed to probe charger" ); |
770 | return ret; |
771 | } |
772 | } |
773 | |
774 | i2c_set_clientdata(client, data: act8865); |
775 | |
776 | /* Unlock expert registers for ACT8865. */ |
777 | return type != ACT8865 ? 0 : regmap_write(map: act8865->regmap, |
778 | ACT8865_SYS_UNLK_REGS, val: 0xef); |
779 | } |
780 | |
781 | static const struct i2c_device_id act8865_ids[] = { |
782 | { .name = "act8600" , .driver_data = ACT8600 }, |
783 | { .name = "act8846" , .driver_data = ACT8846 }, |
784 | { .name = "act8865" , .driver_data = ACT8865 }, |
785 | { }, |
786 | }; |
787 | MODULE_DEVICE_TABLE(i2c, act8865_ids); |
788 | |
789 | static struct i2c_driver act8865_pmic_driver = { |
790 | .driver = { |
791 | .name = "act8865" , |
792 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
793 | }, |
794 | .probe = act8865_pmic_probe, |
795 | .id_table = act8865_ids, |
796 | }; |
797 | |
798 | module_i2c_driver(act8865_pmic_driver); |
799 | |
800 | MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver" ); |
801 | MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>" ); |
802 | MODULE_LICENSE("GPL v2" ); |
803 | |