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ade7515f KM |
1 | /* |
2 | * TI LP8788 MFD - ldo regulator driver | |
3 | * | |
4 | * Copyright 2012 Texas Instruments | |
5 | * | |
6 | * Author: Milo(Woogyom) Kim <milo.kim@ti.com> | |
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 version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/err.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/regulator/driver.h> | |
2468f0d5 | 19 | #include <linux/gpio/consumer.h> |
ade7515f KM |
20 | #include <linux/mfd/lp8788.h> |
21 | ||
22 | /* register address */ | |
23 | #define LP8788_EN_LDO_A 0x0D /* DLDO 1 ~ 8 */ | |
24 | #define LP8788_EN_LDO_B 0x0E /* DLDO 9 ~ 12, ALDO 1 ~ 4 */ | |
25 | #define LP8788_EN_LDO_C 0x0F /* ALDO 5 ~ 10 */ | |
26 | #define LP8788_EN_SEL 0x10 | |
27 | #define LP8788_DLDO1_VOUT 0x2E | |
28 | #define LP8788_DLDO2_VOUT 0x2F | |
29 | #define LP8788_DLDO3_VOUT 0x30 | |
30 | #define LP8788_DLDO4_VOUT 0x31 | |
31 | #define LP8788_DLDO5_VOUT 0x32 | |
32 | #define LP8788_DLDO6_VOUT 0x33 | |
33 | #define LP8788_DLDO7_VOUT 0x34 | |
34 | #define LP8788_DLDO8_VOUT 0x35 | |
35 | #define LP8788_DLDO9_VOUT 0x36 | |
36 | #define LP8788_DLDO10_VOUT 0x37 | |
37 | #define LP8788_DLDO11_VOUT 0x38 | |
38 | #define LP8788_DLDO12_VOUT 0x39 | |
39 | #define LP8788_ALDO1_VOUT 0x3A | |
40 | #define LP8788_ALDO2_VOUT 0x3B | |
41 | #define LP8788_ALDO3_VOUT 0x3C | |
42 | #define LP8788_ALDO4_VOUT 0x3D | |
43 | #define LP8788_ALDO5_VOUT 0x3E | |
44 | #define LP8788_ALDO6_VOUT 0x3F | |
45 | #define LP8788_ALDO7_VOUT 0x40 | |
46 | #define LP8788_ALDO8_VOUT 0x41 | |
47 | #define LP8788_ALDO9_VOUT 0x42 | |
48 | #define LP8788_ALDO10_VOUT 0x43 | |
49 | #define LP8788_DLDO1_TIMESTEP 0x44 | |
50 | ||
51 | /* mask/shift bits */ | |
52 | #define LP8788_EN_DLDO1_M BIT(0) /* Addr 0Dh ~ 0Fh */ | |
53 | #define LP8788_EN_DLDO2_M BIT(1) | |
54 | #define LP8788_EN_DLDO3_M BIT(2) | |
55 | #define LP8788_EN_DLDO4_M BIT(3) | |
56 | #define LP8788_EN_DLDO5_M BIT(4) | |
57 | #define LP8788_EN_DLDO6_M BIT(5) | |
58 | #define LP8788_EN_DLDO7_M BIT(6) | |
59 | #define LP8788_EN_DLDO8_M BIT(7) | |
60 | #define LP8788_EN_DLDO9_M BIT(0) | |
61 | #define LP8788_EN_DLDO10_M BIT(1) | |
62 | #define LP8788_EN_DLDO11_M BIT(2) | |
63 | #define LP8788_EN_DLDO12_M BIT(3) | |
64 | #define LP8788_EN_ALDO1_M BIT(4) | |
65 | #define LP8788_EN_ALDO2_M BIT(5) | |
66 | #define LP8788_EN_ALDO3_M BIT(6) | |
67 | #define LP8788_EN_ALDO4_M BIT(7) | |
68 | #define LP8788_EN_ALDO5_M BIT(0) | |
69 | #define LP8788_EN_ALDO6_M BIT(1) | |
70 | #define LP8788_EN_ALDO7_M BIT(2) | |
71 | #define LP8788_EN_ALDO8_M BIT(3) | |
72 | #define LP8788_EN_ALDO9_M BIT(4) | |
73 | #define LP8788_EN_ALDO10_M BIT(5) | |
74 | #define LP8788_EN_SEL_DLDO911_M BIT(0) /* Addr 10h */ | |
75 | #define LP8788_EN_SEL_DLDO7_M BIT(1) | |
76 | #define LP8788_EN_SEL_ALDO7_M BIT(2) | |
77 | #define LP8788_EN_SEL_ALDO5_M BIT(3) | |
78 | #define LP8788_EN_SEL_ALDO234_M BIT(4) | |
79 | #define LP8788_EN_SEL_ALDO1_M BIT(5) | |
80 | #define LP8788_VOUT_5BIT_M 0x1F /* Addr 2Eh ~ 43h */ | |
81 | #define LP8788_VOUT_4BIT_M 0x0F | |
82 | #define LP8788_VOUT_3BIT_M 0x07 | |
83 | #define LP8788_VOUT_1BIT_M 0x01 | |
84 | #define LP8788_STARTUP_TIME_M 0xF8 /* Addr 44h ~ 59h */ | |
85 | #define LP8788_STARTUP_TIME_S 3 | |
86 | ||
87 | #define ENABLE_TIME_USEC 32 | |
ade7515f | 88 | |
ade7515f KM |
89 | enum lp8788_ldo_id { |
90 | DLDO1, | |
91 | DLDO2, | |
92 | DLDO3, | |
93 | DLDO4, | |
94 | DLDO5, | |
95 | DLDO6, | |
96 | DLDO7, | |
97 | DLDO8, | |
98 | DLDO9, | |
99 | DLDO10, | |
100 | DLDO11, | |
101 | DLDO12, | |
102 | ALDO1, | |
103 | ALDO2, | |
104 | ALDO3, | |
105 | ALDO4, | |
106 | ALDO5, | |
107 | ALDO6, | |
108 | ALDO7, | |
109 | ALDO8, | |
110 | ALDO9, | |
111 | ALDO10, | |
112 | }; | |
113 | ||
114 | struct lp8788_ldo { | |
115 | struct lp8788 *lp; | |
116 | struct regulator_desc *desc; | |
117 | struct regulator_dev *regulator; | |
2468f0d5 | 118 | struct gpio_desc *ena_gpiod; |
ade7515f KM |
119 | }; |
120 | ||
121 | /* DLDO 1, 2, 3, 9 voltage table */ | |
4e92920b | 122 | static const int lp8788_dldo1239_vtbl[] = { |
ade7515f KM |
123 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, |
124 | 2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000, | |
125 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, | |
126 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, | |
127 | }; | |
128 | ||
129 | /* DLDO 4 voltage table */ | |
130 | static const int lp8788_dldo4_vtbl[] = { 1800000, 3000000 }; | |
131 | ||
132 | /* DLDO 5, 7, 8 and ALDO 6 voltage table */ | |
133 | static const int lp8788_dldo578_aldo6_vtbl[] = { | |
134 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, | |
135 | 2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000, | |
136 | }; | |
137 | ||
138 | /* DLDO 6 voltage table */ | |
139 | static const int lp8788_dldo6_vtbl[] = { | |
140 | 3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000, | |
141 | }; | |
142 | ||
143 | /* DLDO 10, 11 voltage table */ | |
144 | static const int lp8788_dldo1011_vtbl[] = { | |
145 | 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, | |
146 | 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, | |
147 | }; | |
148 | ||
149 | /* ALDO 1 voltage table */ | |
150 | static const int lp8788_aldo1_vtbl[] = { 1800000, 2850000 }; | |
151 | ||
152 | /* ALDO 7 voltage table */ | |
153 | static const int lp8788_aldo7_vtbl[] = { | |
154 | 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000, | |
155 | }; | |
156 | ||
ade7515f KM |
157 | static int lp8788_ldo_enable_time(struct regulator_dev *rdev) |
158 | { | |
159 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); | |
160 | enum lp8788_ldo_id id = rdev_get_id(rdev); | |
161 | u8 val, addr = LP8788_DLDO1_TIMESTEP + id; | |
162 | ||
163 | if (lp8788_read_byte(ldo->lp, addr, &val)) | |
164 | return -EINVAL; | |
165 | ||
166 | val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S; | |
167 | ||
168 | return ENABLE_TIME_USEC * val; | |
169 | } | |
170 | ||
95dfead1 | 171 | static const struct regulator_ops lp8788_ldo_voltage_table_ops = { |
ade7515f KM |
172 | .list_voltage = regulator_list_voltage_table, |
173 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
174 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
407945fd KM |
175 | .enable = regulator_enable_regmap, |
176 | .disable = regulator_disable_regmap, | |
177 | .is_enabled = regulator_is_enabled_regmap, | |
ade7515f KM |
178 | .enable_time = lp8788_ldo_enable_time, |
179 | }; | |
180 | ||
95dfead1 | 181 | static const struct regulator_ops lp8788_ldo_voltage_fixed_ops = { |
b5366e5e | 182 | .list_voltage = regulator_list_voltage_linear, |
407945fd KM |
183 | .enable = regulator_enable_regmap, |
184 | .disable = regulator_disable_regmap, | |
185 | .is_enabled = regulator_is_enabled_regmap, | |
ade7515f KM |
186 | .enable_time = lp8788_ldo_enable_time, |
187 | }; | |
188 | ||
189 | static struct regulator_desc lp8788_dldo_desc[] = { | |
190 | { | |
191 | .name = "dldo1", | |
192 | .id = DLDO1, | |
193 | .ops = &lp8788_ldo_voltage_table_ops, | |
194 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
195 | .volt_table = lp8788_dldo1239_vtbl, | |
196 | .type = REGULATOR_VOLTAGE, | |
197 | .owner = THIS_MODULE, | |
198 | .vsel_reg = LP8788_DLDO1_VOUT, | |
199 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
200 | .enable_reg = LP8788_EN_LDO_A, | |
201 | .enable_mask = LP8788_EN_DLDO1_M, | |
202 | }, | |
203 | { | |
204 | .name = "dldo2", | |
205 | .id = DLDO2, | |
206 | .ops = &lp8788_ldo_voltage_table_ops, | |
207 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
208 | .volt_table = lp8788_dldo1239_vtbl, | |
209 | .type = REGULATOR_VOLTAGE, | |
210 | .owner = THIS_MODULE, | |
211 | .vsel_reg = LP8788_DLDO2_VOUT, | |
212 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
213 | .enable_reg = LP8788_EN_LDO_A, | |
214 | .enable_mask = LP8788_EN_DLDO2_M, | |
215 | }, | |
216 | { | |
217 | .name = "dldo3", | |
218 | .id = DLDO3, | |
219 | .ops = &lp8788_ldo_voltage_table_ops, | |
220 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
221 | .volt_table = lp8788_dldo1239_vtbl, | |
222 | .type = REGULATOR_VOLTAGE, | |
223 | .owner = THIS_MODULE, | |
224 | .vsel_reg = LP8788_DLDO3_VOUT, | |
225 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
226 | .enable_reg = LP8788_EN_LDO_A, | |
227 | .enable_mask = LP8788_EN_DLDO3_M, | |
228 | }, | |
229 | { | |
230 | .name = "dldo4", | |
231 | .id = DLDO4, | |
232 | .ops = &lp8788_ldo_voltage_table_ops, | |
233 | .n_voltages = ARRAY_SIZE(lp8788_dldo4_vtbl), | |
234 | .volt_table = lp8788_dldo4_vtbl, | |
235 | .type = REGULATOR_VOLTAGE, | |
236 | .owner = THIS_MODULE, | |
237 | .vsel_reg = LP8788_DLDO4_VOUT, | |
238 | .vsel_mask = LP8788_VOUT_1BIT_M, | |
239 | .enable_reg = LP8788_EN_LDO_A, | |
240 | .enable_mask = LP8788_EN_DLDO4_M, | |
241 | }, | |
242 | { | |
243 | .name = "dldo5", | |
244 | .id = DLDO5, | |
245 | .ops = &lp8788_ldo_voltage_table_ops, | |
246 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
247 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
248 | .type = REGULATOR_VOLTAGE, | |
249 | .owner = THIS_MODULE, | |
250 | .vsel_reg = LP8788_DLDO5_VOUT, | |
251 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
252 | .enable_reg = LP8788_EN_LDO_A, | |
253 | .enable_mask = LP8788_EN_DLDO5_M, | |
254 | }, | |
255 | { | |
256 | .name = "dldo6", | |
257 | .id = DLDO6, | |
258 | .ops = &lp8788_ldo_voltage_table_ops, | |
259 | .n_voltages = ARRAY_SIZE(lp8788_dldo6_vtbl), | |
260 | .volt_table = lp8788_dldo6_vtbl, | |
261 | .type = REGULATOR_VOLTAGE, | |
262 | .owner = THIS_MODULE, | |
263 | .vsel_reg = LP8788_DLDO6_VOUT, | |
264 | .vsel_mask = LP8788_VOUT_3BIT_M, | |
265 | .enable_reg = LP8788_EN_LDO_A, | |
266 | .enable_mask = LP8788_EN_DLDO6_M, | |
267 | }, | |
268 | { | |
269 | .name = "dldo7", | |
270 | .id = DLDO7, | |
271 | .ops = &lp8788_ldo_voltage_table_ops, | |
272 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
273 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
274 | .type = REGULATOR_VOLTAGE, | |
275 | .owner = THIS_MODULE, | |
276 | .vsel_reg = LP8788_DLDO7_VOUT, | |
277 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
278 | .enable_reg = LP8788_EN_LDO_A, | |
279 | .enable_mask = LP8788_EN_DLDO7_M, | |
280 | }, | |
281 | { | |
282 | .name = "dldo8", | |
283 | .id = DLDO8, | |
284 | .ops = &lp8788_ldo_voltage_table_ops, | |
285 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
286 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
287 | .type = REGULATOR_VOLTAGE, | |
288 | .owner = THIS_MODULE, | |
289 | .vsel_reg = LP8788_DLDO8_VOUT, | |
290 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
291 | .enable_reg = LP8788_EN_LDO_A, | |
292 | .enable_mask = LP8788_EN_DLDO8_M, | |
293 | }, | |
294 | { | |
295 | .name = "dldo9", | |
296 | .id = DLDO9, | |
297 | .ops = &lp8788_ldo_voltage_table_ops, | |
298 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
299 | .volt_table = lp8788_dldo1239_vtbl, | |
300 | .type = REGULATOR_VOLTAGE, | |
301 | .owner = THIS_MODULE, | |
302 | .vsel_reg = LP8788_DLDO9_VOUT, | |
303 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
304 | .enable_reg = LP8788_EN_LDO_B, | |
305 | .enable_mask = LP8788_EN_DLDO9_M, | |
306 | }, | |
307 | { | |
308 | .name = "dldo10", | |
309 | .id = DLDO10, | |
310 | .ops = &lp8788_ldo_voltage_table_ops, | |
311 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), | |
312 | .volt_table = lp8788_dldo1011_vtbl, | |
313 | .type = REGULATOR_VOLTAGE, | |
314 | .owner = THIS_MODULE, | |
315 | .vsel_reg = LP8788_DLDO10_VOUT, | |
316 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
317 | .enable_reg = LP8788_EN_LDO_B, | |
318 | .enable_mask = LP8788_EN_DLDO10_M, | |
319 | }, | |
320 | { | |
321 | .name = "dldo11", | |
322 | .id = DLDO11, | |
323 | .ops = &lp8788_ldo_voltage_table_ops, | |
324 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), | |
325 | .volt_table = lp8788_dldo1011_vtbl, | |
326 | .type = REGULATOR_VOLTAGE, | |
327 | .owner = THIS_MODULE, | |
328 | .vsel_reg = LP8788_DLDO11_VOUT, | |
329 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
330 | .enable_reg = LP8788_EN_LDO_B, | |
331 | .enable_mask = LP8788_EN_DLDO11_M, | |
332 | }, | |
333 | { | |
334 | .name = "dldo12", | |
335 | .id = DLDO12, | |
336 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 337 | .n_voltages = 1, |
ade7515f KM |
338 | .type = REGULATOR_VOLTAGE, |
339 | .owner = THIS_MODULE, | |
340 | .enable_reg = LP8788_EN_LDO_B, | |
341 | .enable_mask = LP8788_EN_DLDO12_M, | |
b5366e5e | 342 | .min_uV = 2500000, |
ade7515f KM |
343 | }, |
344 | }; | |
345 | ||
346 | static struct regulator_desc lp8788_aldo_desc[] = { | |
347 | { | |
348 | .name = "aldo1", | |
349 | .id = ALDO1, | |
350 | .ops = &lp8788_ldo_voltage_table_ops, | |
351 | .n_voltages = ARRAY_SIZE(lp8788_aldo1_vtbl), | |
352 | .volt_table = lp8788_aldo1_vtbl, | |
353 | .type = REGULATOR_VOLTAGE, | |
354 | .owner = THIS_MODULE, | |
355 | .vsel_reg = LP8788_ALDO1_VOUT, | |
356 | .vsel_mask = LP8788_VOUT_1BIT_M, | |
357 | .enable_reg = LP8788_EN_LDO_B, | |
358 | .enable_mask = LP8788_EN_ALDO1_M, | |
359 | }, | |
360 | { | |
361 | .name = "aldo2", | |
362 | .id = ALDO2, | |
363 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 364 | .n_voltages = 1, |
ade7515f KM |
365 | .type = REGULATOR_VOLTAGE, |
366 | .owner = THIS_MODULE, | |
367 | .enable_reg = LP8788_EN_LDO_B, | |
368 | .enable_mask = LP8788_EN_ALDO2_M, | |
b5366e5e | 369 | .min_uV = 2850000, |
ade7515f KM |
370 | }, |
371 | { | |
372 | .name = "aldo3", | |
373 | .id = ALDO3, | |
374 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 375 | .n_voltages = 1, |
ade7515f KM |
376 | .type = REGULATOR_VOLTAGE, |
377 | .owner = THIS_MODULE, | |
378 | .enable_reg = LP8788_EN_LDO_B, | |
379 | .enable_mask = LP8788_EN_ALDO3_M, | |
b5366e5e | 380 | .min_uV = 2850000, |
ade7515f KM |
381 | }, |
382 | { | |
383 | .name = "aldo4", | |
384 | .id = ALDO4, | |
385 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 386 | .n_voltages = 1, |
ade7515f KM |
387 | .type = REGULATOR_VOLTAGE, |
388 | .owner = THIS_MODULE, | |
389 | .enable_reg = LP8788_EN_LDO_B, | |
390 | .enable_mask = LP8788_EN_ALDO4_M, | |
b5366e5e | 391 | .min_uV = 2850000, |
ade7515f KM |
392 | }, |
393 | { | |
394 | .name = "aldo5", | |
395 | .id = ALDO5, | |
396 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 397 | .n_voltages = 1, |
ade7515f KM |
398 | .type = REGULATOR_VOLTAGE, |
399 | .owner = THIS_MODULE, | |
400 | .enable_reg = LP8788_EN_LDO_C, | |
401 | .enable_mask = LP8788_EN_ALDO5_M, | |
b5366e5e | 402 | .min_uV = 2850000, |
ade7515f KM |
403 | }, |
404 | { | |
405 | .name = "aldo6", | |
406 | .id = ALDO6, | |
407 | .ops = &lp8788_ldo_voltage_table_ops, | |
408 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
409 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
410 | .type = REGULATOR_VOLTAGE, | |
411 | .owner = THIS_MODULE, | |
412 | .vsel_reg = LP8788_ALDO6_VOUT, | |
413 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
414 | .enable_reg = LP8788_EN_LDO_C, | |
415 | .enable_mask = LP8788_EN_ALDO6_M, | |
416 | }, | |
417 | { | |
418 | .name = "aldo7", | |
419 | .id = ALDO7, | |
420 | .ops = &lp8788_ldo_voltage_table_ops, | |
421 | .n_voltages = ARRAY_SIZE(lp8788_aldo7_vtbl), | |
422 | .volt_table = lp8788_aldo7_vtbl, | |
423 | .type = REGULATOR_VOLTAGE, | |
424 | .owner = THIS_MODULE, | |
425 | .vsel_reg = LP8788_ALDO7_VOUT, | |
426 | .vsel_mask = LP8788_VOUT_3BIT_M, | |
427 | .enable_reg = LP8788_EN_LDO_C, | |
428 | .enable_mask = LP8788_EN_ALDO7_M, | |
429 | }, | |
430 | { | |
431 | .name = "aldo8", | |
432 | .id = ALDO8, | |
433 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 434 | .n_voltages = 1, |
ade7515f KM |
435 | .type = REGULATOR_VOLTAGE, |
436 | .owner = THIS_MODULE, | |
437 | .enable_reg = LP8788_EN_LDO_C, | |
438 | .enable_mask = LP8788_EN_ALDO8_M, | |
b5366e5e | 439 | .min_uV = 2500000, |
ade7515f KM |
440 | }, |
441 | { | |
442 | .name = "aldo9", | |
443 | .id = ALDO9, | |
444 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 445 | .n_voltages = 1, |
ade7515f KM |
446 | .type = REGULATOR_VOLTAGE, |
447 | .owner = THIS_MODULE, | |
448 | .enable_reg = LP8788_EN_LDO_C, | |
449 | .enable_mask = LP8788_EN_ALDO9_M, | |
b5366e5e | 450 | .min_uV = 2500000, |
ade7515f KM |
451 | }, |
452 | { | |
453 | .name = "aldo10", | |
454 | .id = ALDO10, | |
455 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
74c8cfda | 456 | .n_voltages = 1, |
ade7515f KM |
457 | .type = REGULATOR_VOLTAGE, |
458 | .owner = THIS_MODULE, | |
459 | .enable_reg = LP8788_EN_LDO_C, | |
460 | .enable_mask = LP8788_EN_ALDO10_M, | |
b5366e5e | 461 | .min_uV = 1100000, |
ade7515f KM |
462 | }, |
463 | }; | |
464 | ||
f02a3917 KM |
465 | static int lp8788_config_ldo_enable_mode(struct platform_device *pdev, |
466 | struct lp8788_ldo *ldo, | |
ade7515f KM |
467 | enum lp8788_ldo_id id) |
468 | { | |
ade7515f | 469 | struct lp8788 *lp = ldo->lp; |
ade7515f KM |
470 | enum lp8788_ext_ldo_en_id enable_id; |
471 | u8 en_mask[] = { | |
472 | [EN_ALDO1] = LP8788_EN_SEL_ALDO1_M, | |
473 | [EN_ALDO234] = LP8788_EN_SEL_ALDO234_M, | |
474 | [EN_ALDO5] = LP8788_EN_SEL_ALDO5_M, | |
475 | [EN_ALDO7] = LP8788_EN_SEL_ALDO7_M, | |
476 | [EN_DLDO7] = LP8788_EN_SEL_DLDO7_M, | |
477 | [EN_DLDO911] = LP8788_EN_SEL_DLDO911_M, | |
478 | }; | |
ade7515f KM |
479 | |
480 | switch (id) { | |
481 | case DLDO7: | |
482 | enable_id = EN_DLDO7; | |
483 | break; | |
484 | case DLDO9: | |
485 | case DLDO11: | |
486 | enable_id = EN_DLDO911; | |
487 | break; | |
488 | case ALDO1: | |
489 | enable_id = EN_ALDO1; | |
490 | break; | |
491 | case ALDO2 ... ALDO4: | |
492 | enable_id = EN_ALDO234; | |
493 | break; | |
494 | case ALDO5: | |
495 | enable_id = EN_ALDO5; | |
496 | break; | |
497 | case ALDO7: | |
498 | enable_id = EN_ALDO7; | |
499 | break; | |
500 | default: | |
501 | return 0; | |
502 | } | |
503 | ||
2468f0d5 LW |
504 | /* FIXME: check default mode for GPIO here: high or low? */ |
505 | ldo->ena_gpiod = devm_gpiod_get_index_optional(&pdev->dev, | |
506 | "enable", | |
507 | enable_id, | |
508 | GPIOD_OUT_HIGH); | |
509 | if (IS_ERR(ldo->ena_gpiod)) | |
510 | return PTR_ERR(ldo->ena_gpiod); | |
511 | ||
512 | /* if no GPIO for ldo pin, then set default enable mode */ | |
513 | if (!ldo->ena_gpiod) | |
ade7515f KM |
514 | goto set_default_ldo_enable_mode; |
515 | ||
407945fd | 516 | return 0; |
ade7515f KM |
517 | |
518 | set_default_ldo_enable_mode: | |
40b5aa8f | 519 | return lp8788_update_bits(lp, LP8788_EN_SEL, en_mask[enable_id], 0); |
ade7515f KM |
520 | } |
521 | ||
a5023574 | 522 | static int lp8788_dldo_probe(struct platform_device *pdev) |
ade7515f KM |
523 | { |
524 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); | |
525 | int id = pdev->id; | |
526 | struct lp8788_ldo *ldo; | |
527 | struct regulator_config cfg = { }; | |
528 | struct regulator_dev *rdev; | |
529 | int ret; | |
530 | ||
939e88f0 | 531 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
ade7515f KM |
532 | if (!ldo) |
533 | return -ENOMEM; | |
534 | ||
535 | ldo->lp = lp; | |
80abd60d | 536 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, id); |
ade7515f KM |
537 | if (ret) |
538 | return ret; | |
539 | ||
2468f0d5 LW |
540 | if (ldo->ena_gpiod) |
541 | cfg.ena_gpiod = ldo->ena_gpiod; | |
407945fd | 542 | |
939e88f0 | 543 | cfg.dev = pdev->dev.parent; |
ade7515f KM |
544 | cfg.init_data = lp->pdata ? lp->pdata->dldo_data[id] : NULL; |
545 | cfg.driver_data = ldo; | |
546 | cfg.regmap = lp->regmap; | |
547 | ||
0b7bb090 | 548 | rdev = devm_regulator_register(&pdev->dev, &lp8788_dldo_desc[id], &cfg); |
ade7515f KM |
549 | if (IS_ERR(rdev)) { |
550 | ret = PTR_ERR(rdev); | |
939e88f0 | 551 | dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n", |
ade7515f KM |
552 | id + 1, ret); |
553 | return ret; | |
554 | } | |
555 | ||
556 | ldo->regulator = rdev; | |
557 | platform_set_drvdata(pdev, ldo); | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
ade7515f KM |
562 | static struct platform_driver lp8788_dldo_driver = { |
563 | .probe = lp8788_dldo_probe, | |
ade7515f KM |
564 | .driver = { |
565 | .name = LP8788_DEV_DLDO, | |
ade7515f KM |
566 | }, |
567 | }; | |
568 | ||
a5023574 | 569 | static int lp8788_aldo_probe(struct platform_device *pdev) |
ade7515f KM |
570 | { |
571 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); | |
572 | int id = pdev->id; | |
573 | struct lp8788_ldo *ldo; | |
574 | struct regulator_config cfg = { }; | |
575 | struct regulator_dev *rdev; | |
576 | int ret; | |
577 | ||
939e88f0 | 578 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
ade7515f KM |
579 | if (!ldo) |
580 | return -ENOMEM; | |
581 | ||
582 | ldo->lp = lp; | |
80abd60d | 583 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, id + ALDO1); |
ade7515f KM |
584 | if (ret) |
585 | return ret; | |
586 | ||
2468f0d5 LW |
587 | if (ldo->ena_gpiod) |
588 | cfg.ena_gpiod = ldo->ena_gpiod; | |
407945fd | 589 | |
939e88f0 | 590 | cfg.dev = pdev->dev.parent; |
ade7515f KM |
591 | cfg.init_data = lp->pdata ? lp->pdata->aldo_data[id] : NULL; |
592 | cfg.driver_data = ldo; | |
593 | cfg.regmap = lp->regmap; | |
594 | ||
0b7bb090 | 595 | rdev = devm_regulator_register(&pdev->dev, &lp8788_aldo_desc[id], &cfg); |
ade7515f KM |
596 | if (IS_ERR(rdev)) { |
597 | ret = PTR_ERR(rdev); | |
939e88f0 | 598 | dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n", |
ade7515f KM |
599 | id + 1, ret); |
600 | return ret; | |
601 | } | |
602 | ||
603 | ldo->regulator = rdev; | |
604 | platform_set_drvdata(pdev, ldo); | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
ade7515f KM |
609 | static struct platform_driver lp8788_aldo_driver = { |
610 | .probe = lp8788_aldo_probe, | |
ade7515f KM |
611 | .driver = { |
612 | .name = LP8788_DEV_ALDO, | |
ade7515f KM |
613 | }, |
614 | }; | |
615 | ||
7629cef1 TR |
616 | static struct platform_driver * const drivers[] = { |
617 | &lp8788_dldo_driver, | |
618 | &lp8788_aldo_driver, | |
619 | }; | |
620 | ||
ade7515f KM |
621 | static int __init lp8788_ldo_init(void) |
622 | { | |
7629cef1 | 623 | return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); |
ade7515f KM |
624 | } |
625 | subsys_initcall(lp8788_ldo_init); | |
626 | ||
627 | static void __exit lp8788_ldo_exit(void) | |
628 | { | |
7629cef1 | 629 | platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); |
ade7515f KM |
630 | } |
631 | module_exit(lp8788_ldo_exit); | |
632 | ||
633 | MODULE_DESCRIPTION("TI LP8788 LDO Driver"); | |
634 | MODULE_AUTHOR("Milo Kim"); | |
635 | MODULE_LICENSE("GPL"); | |
636 | MODULE_ALIAS("platform:lp8788-dldo"); | |
637 | MODULE_ALIAS("platform:lp8788-aldo"); |