Commit | Line | Data |
---|---|---|
33036f48 | 1 | /* |
50a03e35 BG |
2 | * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs |
3 | * | |
4 | * http://www.active-semi.com/products/power-management-units/act88xx/ | |
33036f48 WY |
5 | * |
6 | * Copyright (C) 2013 Atmel Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/i2c.h> | |
22 | #include <linux/err.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/regulator/driver.h> | |
25 | #include <linux/regulator/act8865.h> | |
26 | #include <linux/of.h> | |
27 | #include <linux/of_device.h> | |
28 | #include <linux/regulator/of_regulator.h> | |
29 | #include <linux/regmap.h> | |
30 | ||
df3a950e ZLK |
31 | /* |
32 | * ACT8600 Global Register Map. | |
33 | */ | |
34 | #define ACT8600_SYS_MODE 0x00 | |
35 | #define ACT8600_SYS_CTRL 0x01 | |
36 | #define ACT8600_DCDC1_VSET 0x10 | |
37 | #define ACT8600_DCDC1_CTRL 0x12 | |
38 | #define ACT8600_DCDC2_VSET 0x20 | |
39 | #define ACT8600_DCDC2_CTRL 0x22 | |
40 | #define ACT8600_DCDC3_VSET 0x30 | |
41 | #define ACT8600_DCDC3_CTRL 0x32 | |
42 | #define ACT8600_SUDCDC4_VSET 0x40 | |
43 | #define ACT8600_SUDCDC4_CTRL 0x41 | |
44 | #define ACT8600_LDO5_VSET 0x50 | |
45 | #define ACT8600_LDO5_CTRL 0x51 | |
46 | #define ACT8600_LDO6_VSET 0x60 | |
47 | #define ACT8600_LDO6_CTRL 0x61 | |
48 | #define ACT8600_LDO7_VSET 0x70 | |
49 | #define ACT8600_LDO7_CTRL 0x71 | |
50 | #define ACT8600_LDO8_VSET 0x80 | |
51 | #define ACT8600_LDO8_CTRL 0x81 | |
52 | #define ACT8600_LDO910_CTRL 0x91 | |
53 | #define ACT8600_APCH0 0xA1 | |
54 | #define ACT8600_APCH1 0xA8 | |
55 | #define ACT8600_APCH2 0xA9 | |
56 | #define ACT8600_APCH_STAT 0xAA | |
57 | #define ACT8600_OTG0 0xB0 | |
58 | #define ACT8600_OTG1 0xB2 | |
59 | ||
ac0c0ea8 BG |
60 | /* |
61 | * ACT8846 Global Register Map. | |
62 | */ | |
63 | #define ACT8846_SYS0 0x00 | |
64 | #define ACT8846_SYS1 0x01 | |
65 | #define ACT8846_REG1_VSET 0x10 | |
66 | #define ACT8846_REG1_CTRL 0x12 | |
67 | #define ACT8846_REG2_VSET0 0x20 | |
68 | #define ACT8846_REG2_VSET1 0x21 | |
69 | #define ACT8846_REG2_CTRL 0x22 | |
70 | #define ACT8846_REG3_VSET0 0x30 | |
71 | #define ACT8846_REG3_VSET1 0x31 | |
72 | #define ACT8846_REG3_CTRL 0x32 | |
73 | #define ACT8846_REG4_VSET0 0x40 | |
74 | #define ACT8846_REG4_VSET1 0x41 | |
75 | #define ACT8846_REG4_CTRL 0x42 | |
76 | #define ACT8846_REG5_VSET 0x50 | |
77 | #define ACT8846_REG5_CTRL 0x51 | |
78 | #define ACT8846_REG6_VSET 0x58 | |
79 | #define ACT8846_REG6_CTRL 0x59 | |
80 | #define ACT8846_REG7_VSET 0x60 | |
81 | #define ACT8846_REG7_CTRL 0x61 | |
82 | #define ACT8846_REG8_VSET 0x68 | |
83 | #define ACT8846_REG8_CTRL 0x69 | |
84 | #define ACT8846_REG9_VSET 0x70 | |
85 | #define ACT8846_REG9_CTRL 0x71 | |
86 | #define ACT8846_REG10_VSET 0x80 | |
87 | #define ACT8846_REG10_CTRL 0x81 | |
88 | #define ACT8846_REG11_VSET 0x90 | |
89 | #define ACT8846_REG11_CTRL 0x91 | |
90 | #define ACT8846_REG12_VSET 0xa0 | |
91 | #define ACT8846_REG12_CTRL 0xa1 | |
92 | #define ACT8846_REG13_CTRL 0xb1 | |
2b17fa28 RP |
93 | #define ACT8846_GLB_OFF_CTRL 0xc3 |
94 | #define ACT8846_OFF_SYSMASK 0x18 | |
ac0c0ea8 | 95 | |
33036f48 WY |
96 | /* |
97 | * ACT8865 Global Register Map. | |
98 | */ | |
99 | #define ACT8865_SYS_MODE 0x00 | |
100 | #define ACT8865_SYS_CTRL 0x01 | |
101 | #define ACT8865_DCDC1_VSET1 0x20 | |
102 | #define ACT8865_DCDC1_VSET2 0x21 | |
103 | #define ACT8865_DCDC1_CTRL 0x22 | |
104 | #define ACT8865_DCDC2_VSET1 0x30 | |
105 | #define ACT8865_DCDC2_VSET2 0x31 | |
106 | #define ACT8865_DCDC2_CTRL 0x32 | |
107 | #define ACT8865_DCDC3_VSET1 0x40 | |
108 | #define ACT8865_DCDC3_VSET2 0x41 | |
109 | #define ACT8865_DCDC3_CTRL 0x42 | |
110 | #define ACT8865_LDO1_VSET 0x50 | |
111 | #define ACT8865_LDO1_CTRL 0x51 | |
112 | #define ACT8865_LDO2_VSET 0x54 | |
113 | #define ACT8865_LDO2_CTRL 0x55 | |
114 | #define ACT8865_LDO3_VSET 0x60 | |
115 | #define ACT8865_LDO3_CTRL 0x61 | |
116 | #define ACT8865_LDO4_VSET 0x64 | |
117 | #define ACT8865_LDO4_CTRL 0x65 | |
2b17fa28 | 118 | #define ACT8865_MSTROFF 0x20 |
33036f48 WY |
119 | |
120 | /* | |
121 | * Field Definitions. | |
122 | */ | |
123 | #define ACT8865_ENA 0x80 /* ON - [7] */ | |
124 | #define ACT8865_VSEL_MASK 0x3F /* VSET - [5:0] */ | |
125 | ||
df3a950e ZLK |
126 | |
127 | #define ACT8600_LDO10_ENA 0x40 /* ON - [6] */ | |
128 | #define ACT8600_SUDCDC_VSEL_MASK 0xFF /* SUDCDC VSET - [7:0] */ | |
129 | ||
33036f48 WY |
130 | /* |
131 | * ACT8865 voltage number | |
132 | */ | |
133 | #define ACT8865_VOLTAGE_NUM 64 | |
df3a950e | 134 | #define ACT8600_SUDCDC_VOLTAGE_NUM 255 |
33036f48 WY |
135 | |
136 | struct act8865 { | |
33036f48 | 137 | struct regmap *regmap; |
2b17fa28 RP |
138 | int off_reg; |
139 | int off_mask; | |
33036f48 WY |
140 | }; |
141 | ||
c5c9c2df MH |
142 | static const struct regmap_range act8600_reg_ranges[] = { |
143 | regmap_reg_range(0x00, 0x01), | |
144 | regmap_reg_range(0x10, 0x10), | |
145 | regmap_reg_range(0x12, 0x12), | |
146 | regmap_reg_range(0x20, 0x20), | |
147 | regmap_reg_range(0x22, 0x22), | |
148 | regmap_reg_range(0x30, 0x30), | |
149 | regmap_reg_range(0x32, 0x32), | |
150 | regmap_reg_range(0x40, 0x41), | |
151 | regmap_reg_range(0x50, 0x51), | |
152 | regmap_reg_range(0x60, 0x61), | |
153 | regmap_reg_range(0x70, 0x71), | |
154 | regmap_reg_range(0x80, 0x81), | |
155 | regmap_reg_range(0x91, 0x91), | |
156 | regmap_reg_range(0xA1, 0xA1), | |
157 | regmap_reg_range(0xA8, 0xAA), | |
158 | regmap_reg_range(0xB0, 0xB0), | |
159 | regmap_reg_range(0xB2, 0xB2), | |
160 | regmap_reg_range(0xC1, 0xC1), | |
161 | }; | |
162 | ||
163 | static const struct regmap_range act8600_reg_ro_ranges[] = { | |
164 | regmap_reg_range(0xAA, 0xAA), | |
165 | regmap_reg_range(0xC1, 0xC1), | |
166 | }; | |
167 | ||
168 | static const struct regmap_range act8600_reg_volatile_ranges[] = { | |
169 | regmap_reg_range(0x00, 0x01), | |
170 | regmap_reg_range(0x12, 0x12), | |
171 | regmap_reg_range(0x22, 0x22), | |
172 | regmap_reg_range(0x32, 0x32), | |
173 | regmap_reg_range(0x41, 0x41), | |
174 | regmap_reg_range(0x51, 0x51), | |
175 | regmap_reg_range(0x61, 0x61), | |
176 | regmap_reg_range(0x71, 0x71), | |
177 | regmap_reg_range(0x81, 0x81), | |
178 | regmap_reg_range(0xA8, 0xA8), | |
179 | regmap_reg_range(0xAA, 0xAA), | |
180 | regmap_reg_range(0xB0, 0xB0), | |
181 | regmap_reg_range(0xC1, 0xC1), | |
182 | }; | |
183 | ||
184 | static const struct regmap_access_table act8600_write_ranges_table = { | |
185 | .yes_ranges = act8600_reg_ranges, | |
186 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges), | |
187 | .no_ranges = act8600_reg_ro_ranges, | |
188 | .n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges), | |
189 | }; | |
190 | ||
191 | static const struct regmap_access_table act8600_read_ranges_table = { | |
192 | .yes_ranges = act8600_reg_ranges, | |
193 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges), | |
194 | }; | |
195 | ||
196 | static const struct regmap_access_table act8600_volatile_ranges_table = { | |
197 | .yes_ranges = act8600_reg_volatile_ranges, | |
198 | .n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges), | |
199 | }; | |
200 | ||
201 | static const struct regmap_config act8600_regmap_config = { | |
202 | .reg_bits = 8, | |
203 | .val_bits = 8, | |
204 | .max_register = 0xFF, | |
205 | .wr_table = &act8600_write_ranges_table, | |
206 | .rd_table = &act8600_read_ranges_table, | |
207 | .volatile_table = &act8600_volatile_ranges_table, | |
208 | }; | |
209 | ||
33036f48 WY |
210 | static const struct regmap_config act8865_regmap_config = { |
211 | .reg_bits = 8, | |
212 | .val_bits = 8, | |
213 | }; | |
214 | ||
50a03e35 | 215 | static const struct regulator_linear_range act8865_voltage_ranges[] = { |
33036f48 WY |
216 | REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), |
217 | REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), | |
218 | REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), | |
219 | }; | |
220 | ||
df3a950e ZLK |
221 | static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = { |
222 | REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0), | |
223 | REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000), | |
224 | REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000), | |
225 | REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000), | |
226 | }; | |
227 | ||
33036f48 WY |
228 | static struct regulator_ops act8865_ops = { |
229 | .list_voltage = regulator_list_voltage_linear_range, | |
230 | .map_voltage = regulator_map_voltage_linear_range, | |
231 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
232 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
233 | .enable = regulator_enable_regmap, | |
234 | .disable = regulator_disable_regmap, | |
235 | .is_enabled = regulator_is_enabled_regmap, | |
33036f48 WY |
236 | }; |
237 | ||
df3a950e ZLK |
238 | static struct regulator_ops act8865_ldo_ops = { |
239 | .enable = regulator_enable_regmap, | |
240 | .disable = regulator_disable_regmap, | |
241 | .is_enabled = regulator_is_enabled_regmap, | |
242 | }; | |
243 | ||
c8b263cc | 244 | #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \ |
50a03e35 BG |
245 | [_family##_ID_##_id] = { \ |
246 | .name = _name, \ | |
c8b263cc | 247 | .supply_name = _supply, \ |
50a03e35 BG |
248 | .id = _family##_ID_##_id, \ |
249 | .type = REGULATOR_VOLTAGE, \ | |
250 | .ops = &act8865_ops, \ | |
251 | .n_voltages = ACT8865_VOLTAGE_NUM, \ | |
252 | .linear_ranges = act8865_voltage_ranges, \ | |
253 | .n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \ | |
254 | .vsel_reg = _family##_##_id##_##_vsel_reg, \ | |
255 | .vsel_mask = ACT8865_VSEL_MASK, \ | |
256 | .enable_reg = _family##_##_id##_CTRL, \ | |
257 | .enable_mask = ACT8865_ENA, \ | |
258 | .owner = THIS_MODULE, \ | |
259 | } | |
260 | ||
df3a950e | 261 | static const struct regulator_desc act8600_regulators[] = { |
c8b263cc HS |
262 | ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"), |
263 | ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"), | |
264 | ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"), | |
df3a950e ZLK |
265 | { |
266 | .name = "SUDCDC_REG4", | |
267 | .id = ACT8600_ID_SUDCDC4, | |
268 | .ops = &act8865_ops, | |
269 | .type = REGULATOR_VOLTAGE, | |
270 | .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM, | |
271 | .linear_ranges = act8600_sudcdc_voltage_ranges, | |
272 | .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges), | |
273 | .vsel_reg = ACT8600_SUDCDC4_VSET, | |
274 | .vsel_mask = ACT8600_SUDCDC_VSEL_MASK, | |
275 | .enable_reg = ACT8600_SUDCDC4_CTRL, | |
276 | .enable_mask = ACT8865_ENA, | |
277 | .owner = THIS_MODULE, | |
278 | }, | |
c8b263cc HS |
279 | ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"), |
280 | ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"), | |
281 | ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"), | |
282 | ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"), | |
df3a950e ZLK |
283 | { |
284 | .name = "LDO_REG9", | |
285 | .id = ACT8600_ID_LDO9, | |
286 | .ops = &act8865_ldo_ops, | |
287 | .type = REGULATOR_VOLTAGE, | |
288 | .n_voltages = 1, | |
79b5d026 | 289 | .fixed_uV = 3300000, |
df3a950e ZLK |
290 | .enable_reg = ACT8600_LDO910_CTRL, |
291 | .enable_mask = ACT8865_ENA, | |
292 | .owner = THIS_MODULE, | |
293 | }, | |
294 | { | |
295 | .name = "LDO_REG10", | |
296 | .id = ACT8600_ID_LDO10, | |
297 | .ops = &act8865_ldo_ops, | |
298 | .type = REGULATOR_VOLTAGE, | |
299 | .n_voltages = 1, | |
300 | .fixed_uV = 1200000, | |
301 | .enable_reg = ACT8600_LDO910_CTRL, | |
302 | .enable_mask = ACT8600_LDO10_ENA, | |
303 | .owner = THIS_MODULE, | |
304 | }, | |
305 | }; | |
306 | ||
ac0c0ea8 | 307 | static const struct regulator_desc act8846_regulators[] = { |
c8b263cc HS |
308 | ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"), |
309 | ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"), | |
310 | ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"), | |
311 | ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"), | |
312 | ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"), | |
313 | ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"), | |
314 | ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"), | |
315 | ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"), | |
316 | ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"), | |
317 | ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"), | |
318 | ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"), | |
319 | ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"), | |
ac0c0ea8 BG |
320 | }; |
321 | ||
50a03e35 | 322 | static const struct regulator_desc act8865_regulators[] = { |
c8b263cc HS |
323 | ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"), |
324 | ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"), | |
325 | ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"), | |
326 | ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"), | |
327 | ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"), | |
328 | ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"), | |
329 | ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"), | |
33036f48 WY |
330 | }; |
331 | ||
c86dc03e WY |
332 | static const struct regulator_desc act8865_alt_regulators[] = { |
333 | ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"), | |
334 | ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"), | |
335 | ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"), | |
336 | ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"), | |
337 | ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"), | |
338 | ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"), | |
339 | ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"), | |
340 | }; | |
341 | ||
33036f48 WY |
342 | #ifdef CONFIG_OF |
343 | static const struct of_device_id act8865_dt_ids[] = { | |
df3a950e | 344 | { .compatible = "active-semi,act8600", .data = (void *)ACT8600 }, |
ac0c0ea8 | 345 | { .compatible = "active-semi,act8846", .data = (void *)ACT8846 }, |
50a03e35 | 346 | { .compatible = "active-semi,act8865", .data = (void *)ACT8865 }, |
33036f48 WY |
347 | { } |
348 | }; | |
349 | MODULE_DEVICE_TABLE(of, act8865_dt_ids); | |
350 | ||
ac0c0ea8 BG |
351 | static struct of_regulator_match act8846_matches[] = { |
352 | [ACT8846_ID_REG1] = { .name = "REG1" }, | |
353 | [ACT8846_ID_REG2] = { .name = "REG2" }, | |
354 | [ACT8846_ID_REG3] = { .name = "REG3" }, | |
355 | [ACT8846_ID_REG4] = { .name = "REG4" }, | |
356 | [ACT8846_ID_REG5] = { .name = "REG5" }, | |
357 | [ACT8846_ID_REG6] = { .name = "REG6" }, | |
358 | [ACT8846_ID_REG7] = { .name = "REG7" }, | |
359 | [ACT8846_ID_REG8] = { .name = "REG8" }, | |
360 | [ACT8846_ID_REG9] = { .name = "REG9" }, | |
361 | [ACT8846_ID_REG10] = { .name = "REG10" }, | |
362 | [ACT8846_ID_REG11] = { .name = "REG11" }, | |
363 | [ACT8846_ID_REG12] = { .name = "REG12" }, | |
364 | }; | |
365 | ||
33036f48 WY |
366 | static struct of_regulator_match act8865_matches[] = { |
367 | [ACT8865_ID_DCDC1] = { .name = "DCDC_REG1"}, | |
368 | [ACT8865_ID_DCDC2] = { .name = "DCDC_REG2"}, | |
369 | [ACT8865_ID_DCDC3] = { .name = "DCDC_REG3"}, | |
370 | [ACT8865_ID_LDO1] = { .name = "LDO_REG1"}, | |
371 | [ACT8865_ID_LDO2] = { .name = "LDO_REG2"}, | |
372 | [ACT8865_ID_LDO3] = { .name = "LDO_REG3"}, | |
373 | [ACT8865_ID_LDO4] = { .name = "LDO_REG4"}, | |
374 | }; | |
375 | ||
df3a950e ZLK |
376 | static struct of_regulator_match act8600_matches[] = { |
377 | [ACT8600_ID_DCDC1] = { .name = "DCDC_REG1"}, | |
378 | [ACT8600_ID_DCDC2] = { .name = "DCDC_REG2"}, | |
379 | [ACT8600_ID_DCDC3] = { .name = "DCDC_REG3"}, | |
380 | [ACT8600_ID_SUDCDC4] = { .name = "SUDCDC_REG4"}, | |
381 | [ACT8600_ID_LDO5] = { .name = "LDO_REG5"}, | |
382 | [ACT8600_ID_LDO6] = { .name = "LDO_REG6"}, | |
383 | [ACT8600_ID_LDO7] = { .name = "LDO_REG7"}, | |
384 | [ACT8600_ID_LDO8] = { .name = "LDO_REG8"}, | |
385 | [ACT8600_ID_LDO9] = { .name = "LDO_REG9"}, | |
386 | [ACT8600_ID_LDO10] = { .name = "LDO_REG10"}, | |
387 | }; | |
388 | ||
33036f48 | 389 | static int act8865_pdata_from_dt(struct device *dev, |
50a03e35 | 390 | struct act8865_platform_data *pdata, |
34e0247f | 391 | unsigned long type) |
33036f48 | 392 | { |
34e0247f | 393 | int matched, i, num_matches; |
33036f48 WY |
394 | struct device_node *np; |
395 | struct act8865_regulator_data *regulator; | |
34e0247f | 396 | struct of_regulator_match *matches; |
33036f48 | 397 | |
6ea970a9 | 398 | np = of_get_child_by_name(dev->of_node, "regulators"); |
33036f48 WY |
399 | if (!np) { |
400 | dev_err(dev, "missing 'regulators' subnode in DT\n"); | |
401 | return -EINVAL; | |
402 | } | |
403 | ||
34e0247f | 404 | switch (type) { |
df3a950e ZLK |
405 | case ACT8600: |
406 | matches = act8600_matches; | |
407 | num_matches = ARRAY_SIZE(act8600_matches); | |
408 | break; | |
34e0247f BG |
409 | case ACT8846: |
410 | matches = act8846_matches; | |
411 | num_matches = ARRAY_SIZE(act8846_matches); | |
412 | break; | |
413 | case ACT8865: | |
414 | matches = act8865_matches; | |
415 | num_matches = ARRAY_SIZE(act8865_matches); | |
416 | break; | |
417 | default: | |
418 | dev_err(dev, "invalid device id %lu\n", type); | |
419 | return -EINVAL; | |
420 | } | |
421 | ||
50a03e35 | 422 | matched = of_regulator_match(dev, np, matches, num_matches); |
0079eb53 | 423 | of_node_put(np); |
33036f48 WY |
424 | if (matched <= 0) |
425 | return matched; | |
426 | ||
427 | pdata->regulators = devm_kzalloc(dev, | |
50a03e35 BG |
428 | sizeof(struct act8865_regulator_data) * |
429 | num_matches, GFP_KERNEL); | |
5ee77ef2 | 430 | if (!pdata->regulators) |
33036f48 | 431 | return -ENOMEM; |
33036f48 | 432 | |
50a03e35 | 433 | pdata->num_regulators = num_matches; |
33036f48 WY |
434 | regulator = pdata->regulators; |
435 | ||
50a03e35 | 436 | for (i = 0; i < num_matches; i++) { |
33036f48 | 437 | regulator->id = i; |
50a03e35 | 438 | regulator->name = matches[i].name; |
30f065bf | 439 | regulator->init_data = matches[i].init_data; |
005e4685 | 440 | regulator->of_node = matches[i].of_node; |
33036f48 WY |
441 | regulator++; |
442 | } | |
443 | ||
444 | return 0; | |
445 | } | |
446 | #else | |
447 | static inline int act8865_pdata_from_dt(struct device *dev, | |
34e0247f BG |
448 | struct act8865_platform_data *pdata, |
449 | unsigned long type) | |
33036f48 WY |
450 | { |
451 | return 0; | |
452 | } | |
453 | #endif | |
454 | ||
005e4685 MH |
455 | static struct act8865_regulator_data *act8865_get_regulator_data( |
456 | int id, struct act8865_platform_data *pdata) | |
48a1e1b5 BG |
457 | { |
458 | int i; | |
459 | ||
460 | if (!pdata) | |
461 | return NULL; | |
462 | ||
463 | for (i = 0; i < pdata->num_regulators; i++) { | |
464 | if (pdata->regulators[i].id == id) | |
005e4685 | 465 | return &pdata->regulators[i]; |
48a1e1b5 BG |
466 | } |
467 | ||
468 | return NULL; | |
469 | } | |
470 | ||
2b17fa28 RP |
471 | static struct i2c_client *act8865_i2c_client; |
472 | static void act8865_power_off(void) | |
473 | { | |
474 | struct act8865 *act8865; | |
475 | ||
476 | act8865 = i2c_get_clientdata(act8865_i2c_client); | |
477 | regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask); | |
478 | while (1); | |
479 | } | |
480 | ||
33036f48 | 481 | static int act8865_pmic_probe(struct i2c_client *client, |
50a03e35 | 482 | const struct i2c_device_id *i2c_id) |
33036f48 | 483 | { |
abea1bb0 | 484 | const struct regulator_desc *regulators; |
50a03e35 | 485 | struct act8865_platform_data pdata_of, *pdata; |
33036f48 | 486 | struct device *dev = &client->dev; |
50a03e35 | 487 | int i, ret, num_regulators; |
33036f48 | 488 | struct act8865 *act8865; |
c5c9c2df | 489 | const struct regmap_config *regmap_config; |
50a03e35 | 490 | unsigned long type; |
2b17fa28 | 491 | int off_reg, off_mask; |
c86dc03e | 492 | int voltage_select = 0; |
50a03e35 BG |
493 | |
494 | pdata = dev_get_platdata(dev); | |
33036f48 WY |
495 | |
496 | if (dev->of_node && !pdata) { | |
497 | const struct of_device_id *id; | |
33036f48 WY |
498 | |
499 | id = of_match_device(of_match_ptr(act8865_dt_ids), dev); | |
500 | if (!id) | |
501 | return -ENODEV; | |
502 | ||
50a03e35 | 503 | type = (unsigned long) id->data; |
c86dc03e WY |
504 | |
505 | voltage_select = !!of_get_property(dev->of_node, | |
506 | "active-semi,vsel-high", | |
507 | NULL); | |
50a03e35 BG |
508 | } else { |
509 | type = i2c_id->driver_data; | |
510 | } | |
511 | ||
512 | switch (type) { | |
df3a950e ZLK |
513 | case ACT8600: |
514 | regulators = act8600_regulators; | |
515 | num_regulators = ARRAY_SIZE(act8600_regulators); | |
c5c9c2df | 516 | regmap_config = &act8600_regmap_config; |
df3a950e ZLK |
517 | off_reg = -1; |
518 | off_mask = -1; | |
519 | break; | |
ac0c0ea8 | 520 | case ACT8846: |
ac0c0ea8 BG |
521 | regulators = act8846_regulators; |
522 | num_regulators = ARRAY_SIZE(act8846_regulators); | |
c5c9c2df | 523 | regmap_config = &act8865_regmap_config; |
2b17fa28 RP |
524 | off_reg = ACT8846_GLB_OFF_CTRL; |
525 | off_mask = ACT8846_OFF_SYSMASK; | |
ac0c0ea8 | 526 | break; |
50a03e35 | 527 | case ACT8865: |
c86dc03e WY |
528 | if (voltage_select) { |
529 | regulators = act8865_alt_regulators; | |
530 | num_regulators = ARRAY_SIZE(act8865_alt_regulators); | |
531 | } else { | |
532 | regulators = act8865_regulators; | |
533 | num_regulators = ARRAY_SIZE(act8865_regulators); | |
534 | } | |
c5c9c2df | 535 | regmap_config = &act8865_regmap_config; |
2b17fa28 RP |
536 | off_reg = ACT8865_SYS_CTRL; |
537 | off_mask = ACT8865_MSTROFF; | |
50a03e35 BG |
538 | break; |
539 | default: | |
540 | dev_err(dev, "invalid device id %lu\n", type); | |
541 | return -EINVAL; | |
542 | } | |
543 | ||
50a03e35 | 544 | if (dev->of_node && !pdata) { |
005e4685 | 545 | ret = act8865_pdata_from_dt(dev, &pdata_of, type); |
33036f48 WY |
546 | if (ret < 0) |
547 | return ret; | |
548 | ||
549 | pdata = &pdata_of; | |
550 | } | |
551 | ||
f1de2c2f | 552 | act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL); |
33036f48 WY |
553 | if (!act8865) |
554 | return -ENOMEM; | |
555 | ||
c5c9c2df | 556 | act8865->regmap = devm_regmap_init_i2c(client, regmap_config); |
33036f48 | 557 | if (IS_ERR(act8865->regmap)) { |
40d3bc19 | 558 | ret = PTR_ERR(act8865->regmap); |
de14ba67 | 559 | dev_err(dev, "Failed to allocate register map: %d\n", ret); |
40d3bc19 | 560 | return ret; |
33036f48 WY |
561 | } |
562 | ||
8f73110f | 563 | if (of_device_is_system_power_controller(dev->of_node)) { |
df3a950e | 564 | if (!pm_power_off && (off_reg > 0)) { |
2b17fa28 RP |
565 | act8865_i2c_client = client; |
566 | act8865->off_reg = off_reg; | |
567 | act8865->off_mask = off_mask; | |
568 | pm_power_off = act8865_power_off; | |
569 | } else { | |
570 | dev_err(dev, "Failed to set poweroff capability, already defined\n"); | |
571 | } | |
572 | } | |
573 | ||
33036f48 | 574 | /* Finally register devices */ |
50a03e35 BG |
575 | for (i = 0; i < num_regulators; i++) { |
576 | const struct regulator_desc *desc = ®ulators[i]; | |
577 | struct regulator_config config = { }; | |
005e4685 | 578 | struct act8865_regulator_data *rdata; |
50a03e35 | 579 | struct regulator_dev *rdev; |
33036f48 WY |
580 | |
581 | config.dev = dev; | |
33036f48 WY |
582 | config.driver_data = act8865; |
583 | config.regmap = act8865->regmap; | |
584 | ||
005e4685 MH |
585 | rdata = act8865_get_regulator_data(desc->id, pdata); |
586 | if (rdata) { | |
587 | config.init_data = rdata->init_data; | |
588 | config.of_node = rdata->of_node; | |
589 | } | |
590 | ||
de14ba67 | 591 | rdev = devm_regulator_register(dev, desc, &config); |
fb8eb454 | 592 | if (IS_ERR(rdev)) { |
48a1e1b5 | 593 | dev_err(dev, "failed to register %s\n", desc->name); |
fb8eb454 | 594 | return PTR_ERR(rdev); |
33036f48 WY |
595 | } |
596 | } | |
597 | ||
598 | i2c_set_clientdata(client, act8865); | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
33036f48 | 603 | static const struct i2c_device_id act8865_ids[] = { |
df3a950e | 604 | { .name = "act8600", .driver_data = ACT8600 }, |
ac0c0ea8 | 605 | { .name = "act8846", .driver_data = ACT8846 }, |
50a03e35 | 606 | { .name = "act8865", .driver_data = ACT8865 }, |
33036f48 WY |
607 | { }, |
608 | }; | |
609 | MODULE_DEVICE_TABLE(i2c, act8865_ids); | |
610 | ||
611 | static struct i2c_driver act8865_pmic_driver = { | |
612 | .driver = { | |
613 | .name = "act8865", | |
33036f48 WY |
614 | }, |
615 | .probe = act8865_pmic_probe, | |
33036f48 WY |
616 | .id_table = act8865_ids, |
617 | }; | |
618 | ||
619 | module_i2c_driver(act8865_pmic_driver); | |
620 | ||
50a03e35 | 621 | MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver"); |
33036f48 WY |
622 | MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>"); |
623 | MODULE_LICENSE("GPL v2"); |