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e5ce4208 GG |
1 | /* |
2 | * Driver for Regulator part of Palmas PMIC Chips | |
3 | * | |
7be859f7 | 4 | * Copyright 2011-2013 Texas Instruments Inc. |
e5ce4208 GG |
5 | * |
6 | * Author: Graeme Gregory <gg@slimlogic.co.uk> | |
a7dddf27 | 7 | * Author: Ian Lartey <ian@slimlogic.co.uk> |
e5ce4208 GG |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/regulator/driver.h> | |
22 | #include <linux/regulator/machine.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/regmap.h> | |
25 | #include <linux/mfd/palmas.h> | |
a361cd9f GG |
26 | #include <linux/of.h> |
27 | #include <linux/of_platform.h> | |
28 | #include <linux/regulator/of_regulator.h> | |
e5ce4208 GG |
29 | |
30 | struct regs_info { | |
31 | char *name; | |
504382c9 | 32 | char *sname; |
e5ce4208 GG |
33 | u8 vsel_addr; |
34 | u8 ctrl_addr; | |
35 | u8 tstep_addr; | |
32b6d3f6 | 36 | int sleep_id; |
e5ce4208 GG |
37 | }; |
38 | ||
39 | static const struct regs_info palmas_regs_info[] = { | |
40 | { | |
41 | .name = "SMPS12", | |
504382c9 | 42 | .sname = "smps1-in", |
e5ce4208 GG |
43 | .vsel_addr = PALMAS_SMPS12_VOLTAGE, |
44 | .ctrl_addr = PALMAS_SMPS12_CTRL, | |
45 | .tstep_addr = PALMAS_SMPS12_TSTEP, | |
32b6d3f6 | 46 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, |
e5ce4208 GG |
47 | }, |
48 | { | |
49 | .name = "SMPS123", | |
504382c9 | 50 | .sname = "smps1-in", |
e5ce4208 GG |
51 | .vsel_addr = PALMAS_SMPS12_VOLTAGE, |
52 | .ctrl_addr = PALMAS_SMPS12_CTRL, | |
53 | .tstep_addr = PALMAS_SMPS12_TSTEP, | |
32b6d3f6 | 54 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, |
e5ce4208 GG |
55 | }, |
56 | { | |
57 | .name = "SMPS3", | |
504382c9 | 58 | .sname = "smps3-in", |
e5ce4208 GG |
59 | .vsel_addr = PALMAS_SMPS3_VOLTAGE, |
60 | .ctrl_addr = PALMAS_SMPS3_CTRL, | |
32b6d3f6 | 61 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3, |
e5ce4208 GG |
62 | }, |
63 | { | |
64 | .name = "SMPS45", | |
504382c9 | 65 | .sname = "smps4-in", |
e5ce4208 GG |
66 | .vsel_addr = PALMAS_SMPS45_VOLTAGE, |
67 | .ctrl_addr = PALMAS_SMPS45_CTRL, | |
68 | .tstep_addr = PALMAS_SMPS45_TSTEP, | |
32b6d3f6 | 69 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, |
e5ce4208 GG |
70 | }, |
71 | { | |
72 | .name = "SMPS457", | |
504382c9 | 73 | .sname = "smps4-in", |
e5ce4208 GG |
74 | .vsel_addr = PALMAS_SMPS45_VOLTAGE, |
75 | .ctrl_addr = PALMAS_SMPS45_CTRL, | |
76 | .tstep_addr = PALMAS_SMPS45_TSTEP, | |
32b6d3f6 | 77 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, |
e5ce4208 GG |
78 | }, |
79 | { | |
80 | .name = "SMPS6", | |
504382c9 | 81 | .sname = "smps6-in", |
e5ce4208 GG |
82 | .vsel_addr = PALMAS_SMPS6_VOLTAGE, |
83 | .ctrl_addr = PALMAS_SMPS6_CTRL, | |
84 | .tstep_addr = PALMAS_SMPS6_TSTEP, | |
32b6d3f6 | 85 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6, |
e5ce4208 GG |
86 | }, |
87 | { | |
88 | .name = "SMPS7", | |
504382c9 | 89 | .sname = "smps7-in", |
e5ce4208 GG |
90 | .vsel_addr = PALMAS_SMPS7_VOLTAGE, |
91 | .ctrl_addr = PALMAS_SMPS7_CTRL, | |
32b6d3f6 | 92 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7, |
e5ce4208 GG |
93 | }, |
94 | { | |
95 | .name = "SMPS8", | |
504382c9 | 96 | .sname = "smps8-in", |
e5ce4208 GG |
97 | .vsel_addr = PALMAS_SMPS8_VOLTAGE, |
98 | .ctrl_addr = PALMAS_SMPS8_CTRL, | |
99 | .tstep_addr = PALMAS_SMPS8_TSTEP, | |
32b6d3f6 | 100 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8, |
e5ce4208 GG |
101 | }, |
102 | { | |
103 | .name = "SMPS9", | |
504382c9 | 104 | .sname = "smps9-in", |
e5ce4208 GG |
105 | .vsel_addr = PALMAS_SMPS9_VOLTAGE, |
106 | .ctrl_addr = PALMAS_SMPS9_CTRL, | |
32b6d3f6 | 107 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9, |
e5ce4208 GG |
108 | }, |
109 | { | |
77409d9b | 110 | .name = "SMPS10_OUT2", |
504382c9 | 111 | .sname = "smps10-in", |
e31089c6 | 112 | .ctrl_addr = PALMAS_SMPS10_CTRL, |
32b6d3f6 | 113 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, |
e5ce4208 | 114 | }, |
77409d9b KVA |
115 | { |
116 | .name = "SMPS10_OUT1", | |
117 | .sname = "smps10-out2", | |
118 | .ctrl_addr = PALMAS_SMPS10_CTRL, | |
32b6d3f6 | 119 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, |
77409d9b | 120 | }, |
e5ce4208 GG |
121 | { |
122 | .name = "LDO1", | |
504382c9 | 123 | .sname = "ldo1-in", |
e5ce4208 GG |
124 | .vsel_addr = PALMAS_LDO1_VOLTAGE, |
125 | .ctrl_addr = PALMAS_LDO1_CTRL, | |
32b6d3f6 | 126 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1, |
e5ce4208 GG |
127 | }, |
128 | { | |
129 | .name = "LDO2", | |
504382c9 | 130 | .sname = "ldo2-in", |
e5ce4208 GG |
131 | .vsel_addr = PALMAS_LDO2_VOLTAGE, |
132 | .ctrl_addr = PALMAS_LDO2_CTRL, | |
32b6d3f6 | 133 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2, |
e5ce4208 GG |
134 | }, |
135 | { | |
136 | .name = "LDO3", | |
504382c9 | 137 | .sname = "ldo3-in", |
e5ce4208 GG |
138 | .vsel_addr = PALMAS_LDO3_VOLTAGE, |
139 | .ctrl_addr = PALMAS_LDO3_CTRL, | |
32b6d3f6 | 140 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3, |
e5ce4208 GG |
141 | }, |
142 | { | |
143 | .name = "LDO4", | |
504382c9 | 144 | .sname = "ldo4-in", |
e5ce4208 GG |
145 | .vsel_addr = PALMAS_LDO4_VOLTAGE, |
146 | .ctrl_addr = PALMAS_LDO4_CTRL, | |
32b6d3f6 | 147 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4, |
e5ce4208 GG |
148 | }, |
149 | { | |
150 | .name = "LDO5", | |
504382c9 | 151 | .sname = "ldo5-in", |
e5ce4208 GG |
152 | .vsel_addr = PALMAS_LDO5_VOLTAGE, |
153 | .ctrl_addr = PALMAS_LDO5_CTRL, | |
32b6d3f6 | 154 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5, |
e5ce4208 GG |
155 | }, |
156 | { | |
157 | .name = "LDO6", | |
504382c9 | 158 | .sname = "ldo6-in", |
e5ce4208 GG |
159 | .vsel_addr = PALMAS_LDO6_VOLTAGE, |
160 | .ctrl_addr = PALMAS_LDO6_CTRL, | |
32b6d3f6 | 161 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6, |
e5ce4208 GG |
162 | }, |
163 | { | |
164 | .name = "LDO7", | |
504382c9 | 165 | .sname = "ldo7-in", |
e5ce4208 GG |
166 | .vsel_addr = PALMAS_LDO7_VOLTAGE, |
167 | .ctrl_addr = PALMAS_LDO7_CTRL, | |
32b6d3f6 | 168 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7, |
e5ce4208 GG |
169 | }, |
170 | { | |
171 | .name = "LDO8", | |
504382c9 | 172 | .sname = "ldo8-in", |
e5ce4208 GG |
173 | .vsel_addr = PALMAS_LDO8_VOLTAGE, |
174 | .ctrl_addr = PALMAS_LDO8_CTRL, | |
32b6d3f6 | 175 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8, |
e5ce4208 GG |
176 | }, |
177 | { | |
178 | .name = "LDO9", | |
504382c9 | 179 | .sname = "ldo9-in", |
e5ce4208 GG |
180 | .vsel_addr = PALMAS_LDO9_VOLTAGE, |
181 | .ctrl_addr = PALMAS_LDO9_CTRL, | |
32b6d3f6 | 182 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9, |
e5ce4208 GG |
183 | }, |
184 | { | |
185 | .name = "LDOLN", | |
504382c9 | 186 | .sname = "ldoln-in", |
e5ce4208 GG |
187 | .vsel_addr = PALMAS_LDOLN_VOLTAGE, |
188 | .ctrl_addr = PALMAS_LDOLN_CTRL, | |
32b6d3f6 | 189 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN, |
e5ce4208 GG |
190 | }, |
191 | { | |
192 | .name = "LDOUSB", | |
504382c9 | 193 | .sname = "ldousb-in", |
e5ce4208 GG |
194 | .vsel_addr = PALMAS_LDOUSB_VOLTAGE, |
195 | .ctrl_addr = PALMAS_LDOUSB_CTRL, | |
32b6d3f6 | 196 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB, |
e5ce4208 | 197 | }, |
aa07f027 LD |
198 | { |
199 | .name = "REGEN1", | |
200 | .ctrl_addr = PALMAS_REGEN1_CTRL, | |
32b6d3f6 | 201 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1, |
aa07f027 LD |
202 | }, |
203 | { | |
204 | .name = "REGEN2", | |
205 | .ctrl_addr = PALMAS_REGEN2_CTRL, | |
32b6d3f6 | 206 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2, |
aa07f027 LD |
207 | }, |
208 | { | |
209 | .name = "REGEN3", | |
210 | .ctrl_addr = PALMAS_REGEN3_CTRL, | |
32b6d3f6 | 211 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3, |
aa07f027 LD |
212 | }, |
213 | { | |
214 | .name = "SYSEN1", | |
215 | .ctrl_addr = PALMAS_SYSEN1_CTRL, | |
32b6d3f6 | 216 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1, |
aa07f027 LD |
217 | }, |
218 | { | |
219 | .name = "SYSEN2", | |
220 | .ctrl_addr = PALMAS_SYSEN2_CTRL, | |
32b6d3f6 | 221 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2, |
aa07f027 | 222 | }, |
e5ce4208 GG |
223 | }; |
224 | ||
28d1e8cd LD |
225 | static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; |
226 | ||
e5ce4208 GG |
227 | #define SMPS_CTRL_MODE_OFF 0x00 |
228 | #define SMPS_CTRL_MODE_ON 0x01 | |
229 | #define SMPS_CTRL_MODE_ECO 0x02 | |
230 | #define SMPS_CTRL_MODE_PWM 0x03 | |
231 | ||
0f45aa84 | 232 | #define PALMAS_SMPS_NUM_VOLTAGES 122 |
e5ce4208 GG |
233 | #define PALMAS_SMPS10_NUM_VOLTAGES 2 |
234 | #define PALMAS_LDO_NUM_VOLTAGES 50 | |
235 | ||
236 | #define SMPS10_VSEL (1<<3) | |
237 | #define SMPS10_BOOST_EN (1<<2) | |
238 | #define SMPS10_BYPASS_EN (1<<1) | |
239 | #define SMPS10_SWITCH_EN (1<<0) | |
240 | ||
241 | #define REGULATOR_SLAVE 0 | |
242 | ||
243 | static int palmas_smps_read(struct palmas *palmas, unsigned int reg, | |
244 | unsigned int *dest) | |
245 | { | |
246 | unsigned int addr; | |
247 | ||
248 | addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); | |
249 | ||
250 | return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); | |
251 | } | |
252 | ||
253 | static int palmas_smps_write(struct palmas *palmas, unsigned int reg, | |
254 | unsigned int value) | |
255 | { | |
256 | unsigned int addr; | |
257 | ||
258 | addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); | |
259 | ||
260 | return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); | |
261 | } | |
262 | ||
263 | static int palmas_ldo_read(struct palmas *palmas, unsigned int reg, | |
264 | unsigned int *dest) | |
265 | { | |
266 | unsigned int addr; | |
267 | ||
268 | addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); | |
269 | ||
270 | return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); | |
271 | } | |
272 | ||
273 | static int palmas_ldo_write(struct palmas *palmas, unsigned int reg, | |
274 | unsigned int value) | |
275 | { | |
276 | unsigned int addr; | |
277 | ||
278 | addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); | |
279 | ||
280 | return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); | |
281 | } | |
282 | ||
283 | static int palmas_is_enabled_smps(struct regulator_dev *dev) | |
284 | { | |
285 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
286 | int id = rdev_get_id(dev); | |
287 | unsigned int reg; | |
288 | ||
289 | palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
290 | ||
291 | reg &= PALMAS_SMPS12_CTRL_STATUS_MASK; | |
292 | reg >>= PALMAS_SMPS12_CTRL_STATUS_SHIFT; | |
293 | ||
294 | return !!(reg); | |
295 | } | |
296 | ||
297 | static int palmas_enable_smps(struct regulator_dev *dev) | |
298 | { | |
299 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
300 | int id = rdev_get_id(dev); | |
301 | unsigned int reg; | |
302 | ||
303 | palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
304 | ||
305 | reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; | |
51d3a0c9 LD |
306 | if (pmic->current_reg_mode[id]) |
307 | reg |= pmic->current_reg_mode[id]; | |
308 | else | |
309 | reg |= SMPS_CTRL_MODE_ON; | |
e5ce4208 GG |
310 | |
311 | palmas_smps_write(pmic->palmas, palmas_regs_info[id].ctrl_addr, reg); | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | static int palmas_disable_smps(struct regulator_dev *dev) | |
317 | { | |
318 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
319 | int id = rdev_get_id(dev); | |
320 | unsigned int reg; | |
321 | ||
322 | palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
323 | ||
324 | reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; | |
325 | ||
326 | palmas_smps_write(pmic->palmas, palmas_regs_info[id].ctrl_addr, reg); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
e5ce4208 GG |
331 | static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) |
332 | { | |
333 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
334 | int id = rdev_get_id(dev); | |
335 | unsigned int reg; | |
51d3a0c9 | 336 | bool rail_enable = true; |
e5ce4208 GG |
337 | |
338 | palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
999f0c7c | 339 | reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
e5ce4208 | 340 | |
51d3a0c9 LD |
341 | if (reg == SMPS_CTRL_MODE_OFF) |
342 | rail_enable = false; | |
343 | ||
e5ce4208 GG |
344 | switch (mode) { |
345 | case REGULATOR_MODE_NORMAL: | |
346 | reg |= SMPS_CTRL_MODE_ON; | |
347 | break; | |
348 | case REGULATOR_MODE_IDLE: | |
349 | reg |= SMPS_CTRL_MODE_ECO; | |
350 | break; | |
351 | case REGULATOR_MODE_FAST: | |
352 | reg |= SMPS_CTRL_MODE_PWM; | |
353 | break; | |
354 | default: | |
355 | return -EINVAL; | |
356 | } | |
e5ce4208 | 357 | |
51d3a0c9 LD |
358 | pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
359 | if (rail_enable) | |
360 | palmas_smps_write(pmic->palmas, | |
361 | palmas_regs_info[id].ctrl_addr, reg); | |
e5ce4208 GG |
362 | return 0; |
363 | } | |
364 | ||
365 | static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) | |
366 | { | |
367 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
368 | int id = rdev_get_id(dev); | |
369 | unsigned int reg; | |
370 | ||
51d3a0c9 | 371 | reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
e5ce4208 GG |
372 | |
373 | switch (reg) { | |
374 | case SMPS_CTRL_MODE_ON: | |
375 | return REGULATOR_MODE_NORMAL; | |
376 | case SMPS_CTRL_MODE_ECO: | |
377 | return REGULATOR_MODE_IDLE; | |
378 | case SMPS_CTRL_MODE_PWM: | |
379 | return REGULATOR_MODE_FAST; | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int palmas_list_voltage_smps(struct regulator_dev *dev, | |
386 | unsigned selector) | |
387 | { | |
388 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
389 | int id = rdev_get_id(dev); | |
390 | int mult = 1; | |
391 | ||
e5ce4208 GG |
392 | /* Read the multiplier set in VSEL register to return |
393 | * the correct voltage. | |
394 | */ | |
395 | if (pmic->range[id]) | |
396 | mult = 2; | |
397 | ||
ad02e846 AL |
398 | if (selector == 0) |
399 | return 0; | |
400 | else if (selector < 6) | |
401 | return 500000 * mult; | |
402 | else | |
403 | /* Voltage is linear mapping starting from selector 6, | |
404 | * volt = (0.49V + ((selector - 5) * 0.01V)) * RANGE | |
405 | * RANGE is either x1 or x2 | |
406 | */ | |
407 | return (490000 + ((selector - 5) * 10000)) * mult; | |
e5ce4208 GG |
408 | } |
409 | ||
410 | static int palmas_map_voltage_smps(struct regulator_dev *rdev, | |
411 | int min_uV, int max_uV) | |
412 | { | |
8a165df7 AL |
413 | struct palmas_pmic *pmic = rdev_get_drvdata(rdev); |
414 | int id = rdev_get_id(rdev); | |
e5ce4208 GG |
415 | int ret, voltage; |
416 | ||
8a165df7 AL |
417 | if (min_uV == 0) |
418 | return 0; | |
419 | ||
420 | if (pmic->range[id]) { /* RANGE is x2 */ | |
421 | if (min_uV < 1000000) | |
422 | min_uV = 1000000; | |
ad02e846 | 423 | ret = DIV_ROUND_UP(min_uV - 1000000, 20000) + 6; |
8a165df7 AL |
424 | } else { /* RANGE is x1 */ |
425 | if (min_uV < 500000) | |
426 | min_uV = 500000; | |
ad02e846 | 427 | ret = DIV_ROUND_UP(min_uV - 500000, 10000) + 6; |
8a165df7 | 428 | } |
e5ce4208 GG |
429 | |
430 | /* Map back into a voltage to verify we're still in bounds */ | |
431 | voltage = palmas_list_voltage_smps(rdev, ret); | |
432 | if (voltage < min_uV || voltage > max_uV) | |
433 | return -EINVAL; | |
434 | ||
435 | return ret; | |
436 | } | |
437 | ||
28d1e8cd LD |
438 | static int palma_smps_set_voltage_smps_time_sel(struct regulator_dev *rdev, |
439 | unsigned int old_selector, unsigned int new_selector) | |
440 | { | |
441 | struct palmas_pmic *pmic = rdev_get_drvdata(rdev); | |
442 | int id = rdev_get_id(rdev); | |
443 | int old_uv, new_uv; | |
444 | unsigned int ramp_delay = pmic->ramp_delay[id]; | |
445 | ||
446 | if (!ramp_delay) | |
447 | return 0; | |
448 | ||
449 | old_uv = palmas_list_voltage_smps(rdev, old_selector); | |
450 | if (old_uv < 0) | |
451 | return old_uv; | |
452 | ||
453 | new_uv = palmas_list_voltage_smps(rdev, new_selector); | |
454 | if (new_uv < 0) | |
455 | return new_uv; | |
456 | ||
457 | return DIV_ROUND_UP(abs(old_uv - new_uv), ramp_delay); | |
458 | } | |
459 | ||
460 | static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, | |
461 | int ramp_delay) | |
462 | { | |
463 | struct palmas_pmic *pmic = rdev_get_drvdata(rdev); | |
464 | int id = rdev_get_id(rdev); | |
465 | unsigned int reg = 0; | |
466 | unsigned int addr = palmas_regs_info[id].tstep_addr; | |
467 | int ret; | |
468 | ||
f22c2bae AL |
469 | /* SMPS3 and SMPS7 do not have tstep_addr setting */ |
470 | switch (id) { | |
471 | case PALMAS_REG_SMPS3: | |
472 | case PALMAS_REG_SMPS7: | |
473 | return 0; | |
474 | } | |
475 | ||
28d1e8cd LD |
476 | if (ramp_delay <= 0) |
477 | reg = 0; | |
0ea34b57 | 478 | else if (ramp_delay <= 2500) |
28d1e8cd | 479 | reg = 3; |
0ea34b57 | 480 | else if (ramp_delay <= 5000) |
28d1e8cd LD |
481 | reg = 2; |
482 | else | |
483 | reg = 1; | |
484 | ||
485 | ret = palmas_smps_write(pmic->palmas, addr, reg); | |
486 | if (ret < 0) { | |
487 | dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); | |
488 | return ret; | |
489 | } | |
490 | ||
491 | pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; | |
492 | return ret; | |
493 | } | |
494 | ||
e5ce4208 GG |
495 | static struct regulator_ops palmas_ops_smps = { |
496 | .is_enabled = palmas_is_enabled_smps, | |
497 | .enable = palmas_enable_smps, | |
498 | .disable = palmas_disable_smps, | |
499 | .set_mode = palmas_set_mode_smps, | |
500 | .get_mode = palmas_get_mode_smps, | |
bdc4baac AL |
501 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
502 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
e5ce4208 GG |
503 | .list_voltage = palmas_list_voltage_smps, |
504 | .map_voltage = palmas_map_voltage_smps, | |
28d1e8cd LD |
505 | .set_voltage_time_sel = palma_smps_set_voltage_smps_time_sel, |
506 | .set_ramp_delay = palmas_smps_set_ramp_delay, | |
e5ce4208 GG |
507 | }; |
508 | ||
32b6d3f6 LD |
509 | static struct regulator_ops palmas_ops_ext_control_smps = { |
510 | .set_mode = palmas_set_mode_smps, | |
511 | .get_mode = palmas_get_mode_smps, | |
512 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
513 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
514 | .list_voltage = palmas_list_voltage_smps, | |
515 | .map_voltage = palmas_map_voltage_smps, | |
516 | .set_voltage_time_sel = palma_smps_set_voltage_smps_time_sel, | |
517 | .set_ramp_delay = palmas_smps_set_ramp_delay, | |
518 | }; | |
519 | ||
e5ce4208 GG |
520 | static struct regulator_ops palmas_ops_smps10 = { |
521 | .is_enabled = regulator_is_enabled_regmap, | |
522 | .enable = regulator_enable_regmap, | |
523 | .disable = regulator_disable_regmap, | |
524 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
525 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
8029a006 AL |
526 | .list_voltage = regulator_list_voltage_linear, |
527 | .map_voltage = regulator_map_voltage_linear, | |
77409d9b KVA |
528 | .set_bypass = regulator_set_bypass_regmap, |
529 | .get_bypass = regulator_get_bypass_regmap, | |
e5ce4208 GG |
530 | }; |
531 | ||
532 | static int palmas_is_enabled_ldo(struct regulator_dev *dev) | |
533 | { | |
534 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
535 | int id = rdev_get_id(dev); | |
536 | unsigned int reg; | |
537 | ||
538 | palmas_ldo_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
539 | ||
540 | reg &= PALMAS_LDO1_CTRL_STATUS; | |
541 | ||
542 | return !!(reg); | |
543 | } | |
544 | ||
e5ce4208 GG |
545 | static struct regulator_ops palmas_ops_ldo = { |
546 | .is_enabled = palmas_is_enabled_ldo, | |
547 | .enable = regulator_enable_regmap, | |
548 | .disable = regulator_disable_regmap, | |
4a247a96 AL |
549 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
550 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
9119ff6a AL |
551 | .list_voltage = regulator_list_voltage_linear, |
552 | .map_voltage = regulator_map_voltage_linear, | |
e5ce4208 GG |
553 | }; |
554 | ||
32b6d3f6 LD |
555 | static struct regulator_ops palmas_ops_ext_control_ldo = { |
556 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
557 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
558 | .list_voltage = regulator_list_voltage_linear, | |
559 | .map_voltage = regulator_map_voltage_linear, | |
560 | }; | |
561 | ||
aa07f027 LD |
562 | static struct regulator_ops palmas_ops_extreg = { |
563 | .is_enabled = regulator_is_enabled_regmap, | |
564 | .enable = regulator_enable_regmap, | |
565 | .disable = regulator_disable_regmap, | |
566 | }; | |
567 | ||
32b6d3f6 LD |
568 | static struct regulator_ops palmas_ops_ext_control_extreg = { |
569 | }; | |
570 | ||
571 | static int palmas_regulator_config_external(struct palmas *palmas, int id, | |
572 | struct palmas_reg_init *reg_init) | |
573 | { | |
574 | int sleep_id = palmas_regs_info[id].sleep_id; | |
575 | int ret; | |
576 | ||
577 | ret = palmas_ext_control_req_config(palmas, sleep_id, | |
578 | reg_init->roof_floor, true); | |
579 | if (ret < 0) | |
580 | dev_err(palmas->dev, | |
581 | "Ext control config for regulator %d failed %d\n", | |
582 | id, ret); | |
583 | return ret; | |
584 | } | |
585 | ||
e5ce4208 GG |
586 | /* |
587 | * setup the hardware based sleep configuration of the SMPS/LDO regulators | |
588 | * from the platform data. This is different to the software based control | |
589 | * supported by the regulator framework as it is controlled by toggling | |
590 | * pins on the PMIC such as PREQ, SYSEN, ... | |
591 | */ | |
592 | static int palmas_smps_init(struct palmas *palmas, int id, | |
593 | struct palmas_reg_init *reg_init) | |
594 | { | |
595 | unsigned int reg; | |
596 | unsigned int addr; | |
597 | int ret; | |
598 | ||
599 | addr = palmas_regs_info[id].ctrl_addr; | |
600 | ||
601 | ret = palmas_smps_read(palmas, addr, ®); | |
602 | if (ret) | |
603 | return ret; | |
604 | ||
fedd89b1 | 605 | switch (id) { |
77409d9b KVA |
606 | case PALMAS_REG_SMPS10_OUT1: |
607 | case PALMAS_REG_SMPS10_OUT2: | |
30590d04 LD |
608 | reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; |
609 | if (reg_init->mode_sleep) | |
fedd89b1 AL |
610 | reg |= reg_init->mode_sleep << |
611 | PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; | |
fedd89b1 AL |
612 | break; |
613 | default: | |
e5ce4208 GG |
614 | if (reg_init->warm_reset) |
615 | reg |= PALMAS_SMPS12_CTRL_WR_S; | |
30590d04 LD |
616 | else |
617 | reg &= ~PALMAS_SMPS12_CTRL_WR_S; | |
e5ce4208 GG |
618 | |
619 | if (reg_init->roof_floor) | |
620 | reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; | |
30590d04 LD |
621 | else |
622 | reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; | |
e5ce4208 | 623 | |
30590d04 LD |
624 | reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; |
625 | if (reg_init->mode_sleep) | |
e5ce4208 GG |
626 | reg |= reg_init->mode_sleep << |
627 | PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; | |
e5ce4208 | 628 | } |
fedd89b1 | 629 | |
e5ce4208 GG |
630 | ret = palmas_smps_write(palmas, addr, reg); |
631 | if (ret) | |
632 | return ret; | |
633 | ||
e5ce4208 GG |
634 | if (palmas_regs_info[id].vsel_addr && reg_init->vsel) { |
635 | addr = palmas_regs_info[id].vsel_addr; | |
636 | ||
637 | reg = reg_init->vsel; | |
638 | ||
639 | ret = palmas_smps_write(palmas, addr, reg); | |
640 | if (ret) | |
641 | return ret; | |
642 | } | |
643 | ||
32b6d3f6 LD |
644 | if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && |
645 | (id != PALMAS_REG_SMPS10_OUT2)) { | |
646 | /* Enable externally controlled regulator */ | |
647 | addr = palmas_regs_info[id].ctrl_addr; | |
648 | ret = palmas_smps_read(palmas, addr, ®); | |
649 | if (ret < 0) | |
650 | return ret; | |
e5ce4208 | 651 | |
32b6d3f6 LD |
652 | if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { |
653 | reg |= SMPS_CTRL_MODE_ON; | |
654 | ret = palmas_smps_write(palmas, addr, reg); | |
655 | if (ret < 0) | |
656 | return ret; | |
657 | } | |
658 | return palmas_regulator_config_external(palmas, id, reg_init); | |
659 | } | |
e5ce4208 GG |
660 | return 0; |
661 | } | |
662 | ||
663 | static int palmas_ldo_init(struct palmas *palmas, int id, | |
664 | struct palmas_reg_init *reg_init) | |
665 | { | |
666 | unsigned int reg; | |
667 | unsigned int addr; | |
668 | int ret; | |
669 | ||
670 | addr = palmas_regs_info[id].ctrl_addr; | |
671 | ||
2735daeb | 672 | ret = palmas_ldo_read(palmas, addr, ®); |
e5ce4208 GG |
673 | if (ret) |
674 | return ret; | |
675 | ||
676 | if (reg_init->warm_reset) | |
677 | reg |= PALMAS_LDO1_CTRL_WR_S; | |
30590d04 LD |
678 | else |
679 | reg &= ~PALMAS_LDO1_CTRL_WR_S; | |
e5ce4208 GG |
680 | |
681 | if (reg_init->mode_sleep) | |
682 | reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; | |
30590d04 LD |
683 | else |
684 | reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; | |
e5ce4208 | 685 | |
2735daeb | 686 | ret = palmas_ldo_write(palmas, addr, reg); |
e5ce4208 GG |
687 | if (ret) |
688 | return ret; | |
689 | ||
32b6d3f6 LD |
690 | if (reg_init->roof_floor) { |
691 | /* Enable externally controlled regulator */ | |
692 | addr = palmas_regs_info[id].ctrl_addr; | |
693 | ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, | |
694 | addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, | |
695 | PALMAS_LDO1_CTRL_MODE_ACTIVE); | |
696 | if (ret < 0) { | |
697 | dev_err(palmas->dev, | |
698 | "LDO Register 0x%02x update failed %d\n", | |
699 | addr, ret); | |
700 | return ret; | |
701 | } | |
702 | return palmas_regulator_config_external(palmas, id, reg_init); | |
703 | } | |
e5ce4208 GG |
704 | return 0; |
705 | } | |
706 | ||
aa07f027 LD |
707 | static int palmas_extreg_init(struct palmas *palmas, int id, |
708 | struct palmas_reg_init *reg_init) | |
709 | { | |
710 | unsigned int addr; | |
711 | int ret; | |
712 | unsigned int val = 0; | |
713 | ||
714 | addr = palmas_regs_info[id].ctrl_addr; | |
715 | ||
716 | if (reg_init->mode_sleep) | |
717 | val = PALMAS_REGEN1_CTRL_MODE_SLEEP; | |
718 | ||
719 | ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, | |
720 | addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); | |
721 | if (ret < 0) { | |
722 | dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", | |
723 | addr, ret); | |
724 | return ret; | |
725 | } | |
32b6d3f6 LD |
726 | |
727 | if (reg_init->roof_floor) { | |
728 | /* Enable externally controlled regulator */ | |
729 | addr = palmas_regs_info[id].ctrl_addr; | |
730 | ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, | |
731 | addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, | |
732 | PALMAS_REGEN1_CTRL_MODE_ACTIVE); | |
733 | if (ret < 0) { | |
734 | dev_err(palmas->dev, | |
735 | "Resource Register 0x%02x update failed %d\n", | |
736 | addr, ret); | |
737 | return ret; | |
738 | } | |
739 | return palmas_regulator_config_external(palmas, id, reg_init); | |
740 | } | |
aa07f027 LD |
741 | return 0; |
742 | } | |
743 | ||
17c11a76 LD |
744 | static void palmas_enable_ldo8_track(struct palmas *palmas) |
745 | { | |
746 | unsigned int reg; | |
747 | unsigned int addr; | |
748 | int ret; | |
749 | ||
750 | addr = palmas_regs_info[PALMAS_REG_LDO8].ctrl_addr; | |
751 | ||
752 | ret = palmas_ldo_read(palmas, addr, ®); | |
753 | if (ret) { | |
754 | dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); | |
755 | return; | |
756 | } | |
757 | ||
758 | reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; | |
759 | ret = palmas_ldo_write(palmas, addr, reg); | |
760 | if (ret < 0) { | |
761 | dev_err(palmas->dev, "Error in enabling tracking mode\n"); | |
762 | return; | |
763 | } | |
764 | /* | |
765 | * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 | |
766 | * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, | |
767 | * and can be set from 0.45 to 1.65 V. | |
768 | */ | |
769 | addr = palmas_regs_info[PALMAS_REG_LDO8].vsel_addr; | |
770 | ret = palmas_ldo_read(palmas, addr, ®); | |
771 | if (ret) { | |
772 | dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); | |
773 | return; | |
774 | } | |
775 | ||
776 | reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; | |
777 | ret = palmas_ldo_write(palmas, addr, reg); | |
778 | if (ret < 0) | |
779 | dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); | |
780 | ||
781 | return; | |
782 | } | |
783 | ||
a361cd9f GG |
784 | static struct of_regulator_match palmas_matches[] = { |
785 | { .name = "smps12", }, | |
786 | { .name = "smps123", }, | |
787 | { .name = "smps3", }, | |
788 | { .name = "smps45", }, | |
789 | { .name = "smps457", }, | |
790 | { .name = "smps6", }, | |
791 | { .name = "smps7", }, | |
792 | { .name = "smps8", }, | |
793 | { .name = "smps9", }, | |
77409d9b KVA |
794 | { .name = "smps10_out2", }, |
795 | { .name = "smps10_out1", }, | |
a361cd9f GG |
796 | { .name = "ldo1", }, |
797 | { .name = "ldo2", }, | |
798 | { .name = "ldo3", }, | |
799 | { .name = "ldo4", }, | |
800 | { .name = "ldo5", }, | |
801 | { .name = "ldo6", }, | |
802 | { .name = "ldo7", }, | |
803 | { .name = "ldo8", }, | |
804 | { .name = "ldo9", }, | |
805 | { .name = "ldoln", }, | |
806 | { .name = "ldousb", }, | |
aa07f027 LD |
807 | { .name = "regen1", }, |
808 | { .name = "regen2", }, | |
809 | { .name = "regen3", }, | |
810 | { .name = "sysen1", }, | |
811 | { .name = "sysen2", }, | |
a361cd9f GG |
812 | }; |
813 | ||
a5023574 | 814 | static void palmas_dt_to_pdata(struct device *dev, |
a361cd9f GG |
815 | struct device_node *node, |
816 | struct palmas_pmic_platform_data *pdata) | |
817 | { | |
818 | struct device_node *regulators; | |
819 | u32 prop; | |
820 | int idx, ret; | |
821 | ||
c92f5dd2 | 822 | node = of_node_get(node); |
acc1ccad | 823 | regulators = of_get_child_by_name(node, "regulators"); |
a361cd9f GG |
824 | if (!regulators) { |
825 | dev_info(dev, "regulator node not found\n"); | |
826 | return; | |
827 | } | |
828 | ||
829 | ret = of_regulator_match(dev, regulators, palmas_matches, | |
830 | PALMAS_NUM_REGS); | |
c92f5dd2 | 831 | of_node_put(regulators); |
a361cd9f GG |
832 | if (ret < 0) { |
833 | dev_err(dev, "Error parsing regulator init data: %d\n", ret); | |
834 | return; | |
835 | } | |
836 | ||
837 | for (idx = 0; idx < PALMAS_NUM_REGS; idx++) { | |
838 | if (!palmas_matches[idx].init_data || | |
839 | !palmas_matches[idx].of_node) | |
840 | continue; | |
841 | ||
842 | pdata->reg_data[idx] = palmas_matches[idx].init_data; | |
843 | ||
844 | pdata->reg_init[idx] = devm_kzalloc(dev, | |
845 | sizeof(struct palmas_reg_init), GFP_KERNEL); | |
846 | ||
7be859f7 | 847 | pdata->reg_init[idx]->warm_reset = |
71f2146f AL |
848 | of_property_read_bool(palmas_matches[idx].of_node, |
849 | "ti,warm-reset"); | |
a361cd9f | 850 | |
32b6d3f6 LD |
851 | ret = of_property_read_u32(palmas_matches[idx].of_node, |
852 | "ti,roof-floor", &prop); | |
853 | /* EINVAL: Property not found */ | |
854 | if (ret != -EINVAL) { | |
855 | int econtrol; | |
856 | ||
857 | /* use default value, when no value is specified */ | |
858 | econtrol = PALMAS_EXT_CONTROL_NSLEEP; | |
859 | if (!ret) { | |
860 | switch (prop) { | |
861 | case 1: | |
862 | econtrol = PALMAS_EXT_CONTROL_ENABLE1; | |
863 | break; | |
864 | case 2: | |
865 | econtrol = PALMAS_EXT_CONTROL_ENABLE2; | |
866 | break; | |
867 | case 3: | |
868 | econtrol = PALMAS_EXT_CONTROL_NSLEEP; | |
869 | break; | |
870 | default: | |
871 | WARN_ON(1); | |
872 | dev_warn(dev, | |
873 | "%s: Invalid roof-floor option: %u\n", | |
874 | palmas_matches[idx].name, prop); | |
875 | break; | |
876 | } | |
877 | } | |
878 | pdata->reg_init[idx]->roof_floor = econtrol; | |
879 | } | |
a361cd9f GG |
880 | |
881 | ret = of_property_read_u32(palmas_matches[idx].of_node, | |
3c870e3f | 882 | "ti,mode-sleep", &prop); |
a361cd9f GG |
883 | if (!ret) |
884 | pdata->reg_init[idx]->mode_sleep = prop; | |
885 | ||
7be859f7 GG |
886 | ret = of_property_read_bool(palmas_matches[idx].of_node, |
887 | "ti,smps-range"); | |
888 | if (ret) | |
889 | pdata->reg_init[idx]->vsel = | |
890 | PALMAS_SMPS12_VOLTAGE_RANGE; | |
a361cd9f | 891 | |
17c11a76 LD |
892 | if (idx == PALMAS_REG_LDO8) |
893 | pdata->enable_ldo8_tracking = of_property_read_bool( | |
894 | palmas_matches[idx].of_node, | |
895 | "ti,enable-ldo8-tracking"); | |
a361cd9f GG |
896 | } |
897 | ||
7be859f7 | 898 | pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); |
a361cd9f GG |
899 | } |
900 | ||
901 | ||
bbcf50b1 | 902 | static int palmas_regulators_probe(struct platform_device *pdev) |
e5ce4208 GG |
903 | { |
904 | struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); | |
dff91d0b | 905 | struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); |
a361cd9f | 906 | struct device_node *node = pdev->dev.of_node; |
e5ce4208 GG |
907 | struct regulator_dev *rdev; |
908 | struct regulator_config config = { }; | |
909 | struct palmas_pmic *pmic; | |
910 | struct palmas_reg_init *reg_init; | |
911 | int id = 0, ret; | |
912 | unsigned int addr, reg; | |
913 | ||
a361cd9f GG |
914 | if (node && !pdata) { |
915 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
916 | ||
917 | if (!pdata) | |
918 | return -ENOMEM; | |
919 | ||
920 | palmas_dt_to_pdata(&pdev->dev, node, pdata); | |
921 | } | |
e5ce4208 GG |
922 | |
923 | pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); | |
924 | if (!pmic) | |
925 | return -ENOMEM; | |
926 | ||
927 | pmic->dev = &pdev->dev; | |
928 | pmic->palmas = palmas; | |
929 | palmas->pmic = pmic; | |
930 | platform_set_drvdata(pdev, pmic); | |
931 | ||
932 | ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); | |
933 | if (ret) | |
1c9d2d71 | 934 | return ret; |
e5ce4208 GG |
935 | |
936 | if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) | |
937 | pmic->smps123 = 1; | |
938 | ||
939 | if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) | |
940 | pmic->smps457 = 1; | |
941 | ||
942 | config.regmap = palmas->regmap[REGULATOR_SLAVE]; | |
943 | config.dev = &pdev->dev; | |
944 | config.driver_data = pmic; | |
945 | ||
946 | for (id = 0; id < PALMAS_REG_LDO1; id++) { | |
28d1e8cd | 947 | bool ramp_delay_support = false; |
e5ce4208 GG |
948 | |
949 | /* | |
950 | * Miss out regulators which are not available due | |
951 | * to slaving configurations. | |
952 | */ | |
953 | switch (id) { | |
954 | case PALMAS_REG_SMPS12: | |
955 | case PALMAS_REG_SMPS3: | |
956 | if (pmic->smps123) | |
957 | continue; | |
28d1e8cd LD |
958 | if (id == PALMAS_REG_SMPS12) |
959 | ramp_delay_support = true; | |
e5ce4208 GG |
960 | break; |
961 | case PALMAS_REG_SMPS123: | |
962 | if (!pmic->smps123) | |
963 | continue; | |
28d1e8cd | 964 | ramp_delay_support = true; |
e5ce4208 GG |
965 | break; |
966 | case PALMAS_REG_SMPS45: | |
967 | case PALMAS_REG_SMPS7: | |
968 | if (pmic->smps457) | |
969 | continue; | |
28d1e8cd LD |
970 | if (id == PALMAS_REG_SMPS45) |
971 | ramp_delay_support = true; | |
e5ce4208 GG |
972 | break; |
973 | case PALMAS_REG_SMPS457: | |
974 | if (!pmic->smps457) | |
975 | continue; | |
28d1e8cd LD |
976 | ramp_delay_support = true; |
977 | break; | |
77409d9b KVA |
978 | case PALMAS_REG_SMPS10_OUT1: |
979 | case PALMAS_REG_SMPS10_OUT2: | |
1ffb0be3 K |
980 | if (!PALMAS_PMIC_HAS(palmas, SMPS10_BOOST)) |
981 | continue; | |
28d1e8cd LD |
982 | } |
983 | ||
3f4d6364 | 984 | if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) |
28d1e8cd LD |
985 | ramp_delay_support = true; |
986 | ||
987 | if (ramp_delay_support) { | |
988 | addr = palmas_regs_info[id].tstep_addr; | |
989 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
990 | if (ret < 0) { | |
991 | dev_err(&pdev->dev, | |
992 | "reading TSTEP reg failed: %d\n", ret); | |
51c86b3e | 993 | return ret; |
28d1e8cd LD |
994 | } |
995 | pmic->desc[id].ramp_delay = | |
996 | palmas_smps_ramp_delay[reg & 0x3]; | |
997 | pmic->ramp_delay[id] = pmic->desc[id].ramp_delay; | |
e5ce4208 GG |
998 | } |
999 | ||
bdc4baac AL |
1000 | /* Initialise sleep/init values from platform data */ |
1001 | if (pdata && pdata->reg_init[id]) { | |
1002 | reg_init = pdata->reg_init[id]; | |
1003 | ret = palmas_smps_init(palmas, id, reg_init); | |
1004 | if (ret) | |
51c86b3e | 1005 | return ret; |
32b6d3f6 LD |
1006 | } else { |
1007 | reg_init = NULL; | |
bdc4baac AL |
1008 | } |
1009 | ||
e5ce4208 GG |
1010 | /* Register the regulators */ |
1011 | pmic->desc[id].name = palmas_regs_info[id].name; | |
1012 | pmic->desc[id].id = id; | |
1013 | ||
fedd89b1 | 1014 | switch (id) { |
77409d9b KVA |
1015 | case PALMAS_REG_SMPS10_OUT1: |
1016 | case PALMAS_REG_SMPS10_OUT2: | |
e5ce4208 GG |
1017 | pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; |
1018 | pmic->desc[id].ops = &palmas_ops_smps10; | |
12565b16 AL |
1019 | pmic->desc[id].vsel_reg = |
1020 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
1021 | PALMAS_SMPS10_CTRL); | |
e5ce4208 | 1022 | pmic->desc[id].vsel_mask = SMPS10_VSEL; |
a68de074 GG |
1023 | pmic->desc[id].enable_reg = |
1024 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
f232168d | 1025 | PALMAS_SMPS10_CTRL); |
77409d9b KVA |
1026 | if (id == PALMAS_REG_SMPS10_OUT1) |
1027 | pmic->desc[id].enable_mask = SMPS10_SWITCH_EN; | |
1028 | else | |
1029 | pmic->desc[id].enable_mask = SMPS10_BOOST_EN; | |
1030 | pmic->desc[id].bypass_reg = | |
1031 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
1032 | PALMAS_SMPS10_CTRL); | |
1033 | pmic->desc[id].bypass_mask = SMPS10_BYPASS_EN; | |
8029a006 AL |
1034 | pmic->desc[id].min_uV = 3750000; |
1035 | pmic->desc[id].uV_step = 1250000; | |
fedd89b1 AL |
1036 | break; |
1037 | default: | |
bdc4baac AL |
1038 | /* |
1039 | * Read and store the RANGE bit for later use | |
1040 | * This must be done before regulator is probed, | |
51d3a0c9 LD |
1041 | * otherwise we error in probe with unsupportable |
1042 | * ranges. Read the current smps mode for later use. | |
bdc4baac | 1043 | */ |
e5ce4208 GG |
1044 | addr = palmas_regs_info[id].vsel_addr; |
1045 | ||
1046 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
1047 | if (ret) | |
51c86b3e | 1048 | return ret; |
e5ce4208 GG |
1049 | if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) |
1050 | pmic->range[id] = 1; | |
bdc4baac | 1051 | |
32b6d3f6 LD |
1052 | if (reg_init && reg_init->roof_floor) |
1053 | pmic->desc[id].ops = | |
1054 | &palmas_ops_ext_control_smps; | |
1055 | else | |
1056 | pmic->desc[id].ops = &palmas_ops_smps; | |
bdc4baac AL |
1057 | pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; |
1058 | pmic->desc[id].vsel_reg = | |
1059 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
1060 | palmas_regs_info[id].vsel_addr); | |
1061 | pmic->desc[id].vsel_mask = | |
1062 | PALMAS_SMPS12_VOLTAGE_VSEL_MASK; | |
51d3a0c9 LD |
1063 | |
1064 | /* Read the smps mode for later use. */ | |
1065 | addr = palmas_regs_info[id].ctrl_addr; | |
1066 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
1067 | if (ret) | |
51c86b3e | 1068 | return ret; |
51d3a0c9 LD |
1069 | pmic->current_reg_mode[id] = reg & |
1070 | PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; | |
e5ce4208 GG |
1071 | } |
1072 | ||
bdc4baac AL |
1073 | pmic->desc[id].type = REGULATOR_VOLTAGE; |
1074 | pmic->desc[id].owner = THIS_MODULE; | |
1075 | ||
a361cd9f | 1076 | if (pdata) |
e5ce4208 GG |
1077 | config.init_data = pdata->reg_data[id]; |
1078 | else | |
1079 | config.init_data = NULL; | |
1080 | ||
504382c9 | 1081 | pmic->desc[id].supply_name = palmas_regs_info[id].sname; |
a361cd9f GG |
1082 | config.of_node = palmas_matches[id].of_node; |
1083 | ||
51c86b3e SK |
1084 | rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id], |
1085 | &config); | |
e5ce4208 GG |
1086 | if (IS_ERR(rdev)) { |
1087 | dev_err(&pdev->dev, | |
1088 | "failed to register %s regulator\n", | |
1089 | pdev->name); | |
51c86b3e | 1090 | return PTR_ERR(rdev); |
e5ce4208 GG |
1091 | } |
1092 | ||
1093 | /* Save regulator for cleanup */ | |
1094 | pmic->rdev[id] = rdev; | |
1095 | } | |
1096 | ||
1097 | /* Start this loop from the id left from previous loop */ | |
1098 | for (; id < PALMAS_NUM_REGS; id++) { | |
32b6d3f6 LD |
1099 | if (pdata && pdata->reg_init[id]) |
1100 | reg_init = pdata->reg_init[id]; | |
1101 | else | |
1102 | reg_init = NULL; | |
e5ce4208 GG |
1103 | |
1104 | /* Miss out regulators which are not available due | |
1105 | * to alternate functions. | |
1106 | */ | |
1107 | ||
1108 | /* Register the regulators */ | |
1109 | pmic->desc[id].name = palmas_regs_info[id].name; | |
1110 | pmic->desc[id].id = id; | |
e5ce4208 GG |
1111 | pmic->desc[id].type = REGULATOR_VOLTAGE; |
1112 | pmic->desc[id].owner = THIS_MODULE; | |
aa07f027 LD |
1113 | |
1114 | if (id < PALMAS_REG_REGEN1) { | |
1115 | pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; | |
32b6d3f6 LD |
1116 | if (reg_init && reg_init->roof_floor) |
1117 | pmic->desc[id].ops = | |
1118 | &palmas_ops_ext_control_ldo; | |
1119 | else | |
1120 | pmic->desc[id].ops = &palmas_ops_ldo; | |
aa07f027 LD |
1121 | pmic->desc[id].min_uV = 900000; |
1122 | pmic->desc[id].uV_step = 50000; | |
1123 | pmic->desc[id].linear_min_sel = 1; | |
087d30e3 | 1124 | pmic->desc[id].enable_time = 500; |
aa07f027 LD |
1125 | pmic->desc[id].vsel_reg = |
1126 | PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, | |
4a247a96 | 1127 | palmas_regs_info[id].vsel_addr); |
aa07f027 LD |
1128 | pmic->desc[id].vsel_mask = |
1129 | PALMAS_LDO1_VOLTAGE_VSEL_MASK; | |
1130 | pmic->desc[id].enable_reg = | |
1131 | PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, | |
1132 | palmas_regs_info[id].ctrl_addr); | |
1133 | pmic->desc[id].enable_mask = | |
1134 | PALMAS_LDO1_CTRL_MODE_ACTIVE; | |
17c11a76 LD |
1135 | |
1136 | /* Check if LDO8 is in tracking mode or not */ | |
1137 | if (pdata && (id == PALMAS_REG_LDO8) && | |
1138 | pdata->enable_ldo8_tracking) { | |
1139 | palmas_enable_ldo8_track(palmas); | |
3df4a81c | 1140 | pmic->desc[id].min_uV = 450000; |
17c11a76 LD |
1141 | pmic->desc[id].uV_step = 25000; |
1142 | } | |
087d30e3 LD |
1143 | |
1144 | /* LOD6 in vibrator mode will have enable time 2000us */ | |
1145 | if (pdata && pdata->ldo6_vibrator && | |
1146 | (id == PALMAS_REG_LDO6)) | |
1147 | pmic->desc[id].enable_time = 2000; | |
aa07f027 LD |
1148 | } else { |
1149 | pmic->desc[id].n_voltages = 1; | |
32b6d3f6 LD |
1150 | if (reg_init && reg_init->roof_floor) |
1151 | pmic->desc[id].ops = | |
1152 | &palmas_ops_ext_control_extreg; | |
1153 | else | |
1154 | pmic->desc[id].ops = &palmas_ops_extreg; | |
aa07f027 LD |
1155 | pmic->desc[id].enable_reg = |
1156 | PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, | |
a68de074 | 1157 | palmas_regs_info[id].ctrl_addr); |
aa07f027 LD |
1158 | pmic->desc[id].enable_mask = |
1159 | PALMAS_REGEN1_CTRL_MODE_ACTIVE; | |
1160 | } | |
e5ce4208 | 1161 | |
a361cd9f | 1162 | if (pdata) |
e5ce4208 GG |
1163 | config.init_data = pdata->reg_data[id]; |
1164 | else | |
1165 | config.init_data = NULL; | |
1166 | ||
504382c9 | 1167 | pmic->desc[id].supply_name = palmas_regs_info[id].sname; |
a361cd9f GG |
1168 | config.of_node = palmas_matches[id].of_node; |
1169 | ||
51c86b3e SK |
1170 | rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id], |
1171 | &config); | |
e5ce4208 GG |
1172 | if (IS_ERR(rdev)) { |
1173 | dev_err(&pdev->dev, | |
1174 | "failed to register %s regulator\n", | |
1175 | pdev->name); | |
51c86b3e | 1176 | return PTR_ERR(rdev); |
e5ce4208 GG |
1177 | } |
1178 | ||
1179 | /* Save regulator for cleanup */ | |
1180 | pmic->rdev[id] = rdev; | |
1181 | ||
1182 | /* Initialise sleep/init values from platform data */ | |
a361cd9f | 1183 | if (pdata) { |
e5ce4208 GG |
1184 | reg_init = pdata->reg_init[id]; |
1185 | if (reg_init) { | |
aa07f027 LD |
1186 | if (id < PALMAS_REG_REGEN1) |
1187 | ret = palmas_ldo_init(palmas, | |
1188 | id, reg_init); | |
1189 | else | |
1190 | ret = palmas_extreg_init(palmas, | |
1191 | id, reg_init); | |
cb2e45e3 | 1192 | if (ret) |
51c86b3e | 1193 | return ret; |
e5ce4208 GG |
1194 | } |
1195 | } | |
1196 | } | |
1197 | ||
17c11a76 | 1198 | |
e5ce4208 | 1199 | return 0; |
e5ce4208 GG |
1200 | } |
1201 | ||
3d68dfe3 | 1202 | static struct of_device_id of_palmas_match_tbl[] = { |
a361cd9f | 1203 | { .compatible = "ti,palmas-pmic", }, |
7be859f7 GG |
1204 | { .compatible = "ti,twl6035-pmic", }, |
1205 | { .compatible = "ti,twl6036-pmic", }, | |
1206 | { .compatible = "ti,twl6037-pmic", }, | |
1207 | { .compatible = "ti,tps65913-pmic", }, | |
1208 | { .compatible = "ti,tps65914-pmic", }, | |
1209 | { .compatible = "ti,tps80036-pmic", }, | |
b5c46787 | 1210 | { .compatible = "ti,tps659038-pmic", }, |
a361cd9f GG |
1211 | { /* end */ } |
1212 | }; | |
1213 | ||
e5ce4208 GG |
1214 | static struct platform_driver palmas_driver = { |
1215 | .driver = { | |
1216 | .name = "palmas-pmic", | |
a361cd9f | 1217 | .of_match_table = of_palmas_match_tbl, |
e5ce4208 GG |
1218 | .owner = THIS_MODULE, |
1219 | }, | |
bbcf50b1 | 1220 | .probe = palmas_regulators_probe, |
e5ce4208 GG |
1221 | }; |
1222 | ||
1223 | static int __init palmas_init(void) | |
1224 | { | |
1225 | return platform_driver_register(&palmas_driver); | |
1226 | } | |
1227 | subsys_initcall(palmas_init); | |
1228 | ||
1229 | static void __exit palmas_exit(void) | |
1230 | { | |
1231 | platform_driver_unregister(&palmas_driver); | |
1232 | } | |
1233 | module_exit(palmas_exit); | |
1234 | ||
1235 | MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); | |
1236 | MODULE_DESCRIPTION("Palmas voltage regulator driver"); | |
1237 | MODULE_LICENSE("GPL"); | |
1238 | MODULE_ALIAS("platform:palmas-pmic"); | |
a361cd9f | 1239 | MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); |