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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(regmap, reg, val); | |
283 | } | |
284 | ||
285 | static int act8865_set_suspend_enable(struct regulator_dev *rdev) | |
286 | { | |
287 | return act8865_set_suspend_state(rdev, true); | |
288 | } | |
289 | ||
290 | static int act8865_set_suspend_disable(struct regulator_dev *rdev) | |
291 | { | |
292 | return act8865_set_suspend_state(rdev, 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(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(regmap, reg, &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(act8865_i2c_client); | |
581 | regmap_write(act8865->regmap, act8865->off_reg, 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); | |
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(dev, &act8600_charger_desc, &cfg); | |
650 | ||
651 | return PTR_ERR_OR_ZERO(charger); | |
652 | } | |
653 | ||
654 | static int act8865_pmic_probe(struct i2c_client *client, | |
655 | const struct i2c_device_id *i2c_id) | |
656 | { | |
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(dev->of_node, | |
677 | "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, 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(act8865->regmap)) { | |
722 | ret = PTR_ERR(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(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(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, desc, &config); | |
759 | if (IS_ERR(rdev)) { | |
760 | dev_err(dev, "failed to register %s\n", desc->name); | |
761 | return PTR_ERR(rdev); | |
762 | } | |
763 | } | |
764 | ||
765 | if (type == ACT8600) { | |
766 | ret = act8600_charger_probe(dev, 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, act8865); | |
775 | ||
776 | /* Unlock expert registers for ACT8865. */ | |
777 | return type != ACT8865 ? 0 : regmap_write(act8865->regmap, | |
778 | ACT8865_SYS_UNLK_REGS, 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 | }, | |
793 | .probe = act8865_pmic_probe, | |
794 | .id_table = act8865_ids, | |
795 | }; | |
796 | ||
797 | module_i2c_driver(act8865_pmic_driver); | |
798 | ||
799 | MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver"); | |
800 | MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>"); | |
801 | MODULE_LICENSE("GPL v2"); |