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Commit | Line | Data |
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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 | ||
dbabd624 K |
39 | static const struct regulator_linear_range smps_low_ranges[] = { |
40 | REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0), | |
41 | REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000), | |
42 | REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0), | |
43 | }; | |
44 | ||
45 | static const struct regulator_linear_range smps_high_ranges[] = { | |
46 | REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0), | |
47 | REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000), | |
48 | REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0), | |
49 | }; | |
50 | ||
e5ce4208 GG |
51 | static const struct regs_info palmas_regs_info[] = { |
52 | { | |
53 | .name = "SMPS12", | |
504382c9 | 54 | .sname = "smps1-in", |
e5ce4208 GG |
55 | .vsel_addr = PALMAS_SMPS12_VOLTAGE, |
56 | .ctrl_addr = PALMAS_SMPS12_CTRL, | |
57 | .tstep_addr = PALMAS_SMPS12_TSTEP, | |
32b6d3f6 | 58 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, |
e5ce4208 GG |
59 | }, |
60 | { | |
61 | .name = "SMPS123", | |
504382c9 | 62 | .sname = "smps1-in", |
e5ce4208 GG |
63 | .vsel_addr = PALMAS_SMPS12_VOLTAGE, |
64 | .ctrl_addr = PALMAS_SMPS12_CTRL, | |
65 | .tstep_addr = PALMAS_SMPS12_TSTEP, | |
32b6d3f6 | 66 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, |
e5ce4208 GG |
67 | }, |
68 | { | |
69 | .name = "SMPS3", | |
504382c9 | 70 | .sname = "smps3-in", |
e5ce4208 GG |
71 | .vsel_addr = PALMAS_SMPS3_VOLTAGE, |
72 | .ctrl_addr = PALMAS_SMPS3_CTRL, | |
32b6d3f6 | 73 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3, |
e5ce4208 GG |
74 | }, |
75 | { | |
76 | .name = "SMPS45", | |
504382c9 | 77 | .sname = "smps4-in", |
e5ce4208 GG |
78 | .vsel_addr = PALMAS_SMPS45_VOLTAGE, |
79 | .ctrl_addr = PALMAS_SMPS45_CTRL, | |
80 | .tstep_addr = PALMAS_SMPS45_TSTEP, | |
32b6d3f6 | 81 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, |
e5ce4208 GG |
82 | }, |
83 | { | |
84 | .name = "SMPS457", | |
504382c9 | 85 | .sname = "smps4-in", |
e5ce4208 GG |
86 | .vsel_addr = PALMAS_SMPS45_VOLTAGE, |
87 | .ctrl_addr = PALMAS_SMPS45_CTRL, | |
88 | .tstep_addr = PALMAS_SMPS45_TSTEP, | |
32b6d3f6 | 89 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, |
e5ce4208 GG |
90 | }, |
91 | { | |
92 | .name = "SMPS6", | |
504382c9 | 93 | .sname = "smps6-in", |
e5ce4208 GG |
94 | .vsel_addr = PALMAS_SMPS6_VOLTAGE, |
95 | .ctrl_addr = PALMAS_SMPS6_CTRL, | |
96 | .tstep_addr = PALMAS_SMPS6_TSTEP, | |
32b6d3f6 | 97 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6, |
e5ce4208 GG |
98 | }, |
99 | { | |
100 | .name = "SMPS7", | |
504382c9 | 101 | .sname = "smps7-in", |
e5ce4208 GG |
102 | .vsel_addr = PALMAS_SMPS7_VOLTAGE, |
103 | .ctrl_addr = PALMAS_SMPS7_CTRL, | |
32b6d3f6 | 104 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7, |
e5ce4208 GG |
105 | }, |
106 | { | |
107 | .name = "SMPS8", | |
504382c9 | 108 | .sname = "smps8-in", |
e5ce4208 GG |
109 | .vsel_addr = PALMAS_SMPS8_VOLTAGE, |
110 | .ctrl_addr = PALMAS_SMPS8_CTRL, | |
111 | .tstep_addr = PALMAS_SMPS8_TSTEP, | |
32b6d3f6 | 112 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8, |
e5ce4208 GG |
113 | }, |
114 | { | |
115 | .name = "SMPS9", | |
504382c9 | 116 | .sname = "smps9-in", |
e5ce4208 GG |
117 | .vsel_addr = PALMAS_SMPS9_VOLTAGE, |
118 | .ctrl_addr = PALMAS_SMPS9_CTRL, | |
32b6d3f6 | 119 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9, |
e5ce4208 GG |
120 | }, |
121 | { | |
77409d9b | 122 | .name = "SMPS10_OUT2", |
504382c9 | 123 | .sname = "smps10-in", |
e31089c6 | 124 | .ctrl_addr = PALMAS_SMPS10_CTRL, |
32b6d3f6 | 125 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, |
e5ce4208 | 126 | }, |
77409d9b KVA |
127 | { |
128 | .name = "SMPS10_OUT1", | |
129 | .sname = "smps10-out2", | |
130 | .ctrl_addr = PALMAS_SMPS10_CTRL, | |
32b6d3f6 | 131 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, |
77409d9b | 132 | }, |
e5ce4208 GG |
133 | { |
134 | .name = "LDO1", | |
504382c9 | 135 | .sname = "ldo1-in", |
e5ce4208 GG |
136 | .vsel_addr = PALMAS_LDO1_VOLTAGE, |
137 | .ctrl_addr = PALMAS_LDO1_CTRL, | |
32b6d3f6 | 138 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1, |
e5ce4208 GG |
139 | }, |
140 | { | |
141 | .name = "LDO2", | |
504382c9 | 142 | .sname = "ldo2-in", |
e5ce4208 GG |
143 | .vsel_addr = PALMAS_LDO2_VOLTAGE, |
144 | .ctrl_addr = PALMAS_LDO2_CTRL, | |
32b6d3f6 | 145 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2, |
e5ce4208 GG |
146 | }, |
147 | { | |
148 | .name = "LDO3", | |
504382c9 | 149 | .sname = "ldo3-in", |
e5ce4208 GG |
150 | .vsel_addr = PALMAS_LDO3_VOLTAGE, |
151 | .ctrl_addr = PALMAS_LDO3_CTRL, | |
32b6d3f6 | 152 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3, |
e5ce4208 GG |
153 | }, |
154 | { | |
155 | .name = "LDO4", | |
504382c9 | 156 | .sname = "ldo4-in", |
e5ce4208 GG |
157 | .vsel_addr = PALMAS_LDO4_VOLTAGE, |
158 | .ctrl_addr = PALMAS_LDO4_CTRL, | |
32b6d3f6 | 159 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4, |
e5ce4208 GG |
160 | }, |
161 | { | |
162 | .name = "LDO5", | |
504382c9 | 163 | .sname = "ldo5-in", |
e5ce4208 GG |
164 | .vsel_addr = PALMAS_LDO5_VOLTAGE, |
165 | .ctrl_addr = PALMAS_LDO5_CTRL, | |
32b6d3f6 | 166 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5, |
e5ce4208 GG |
167 | }, |
168 | { | |
169 | .name = "LDO6", | |
504382c9 | 170 | .sname = "ldo6-in", |
e5ce4208 GG |
171 | .vsel_addr = PALMAS_LDO6_VOLTAGE, |
172 | .ctrl_addr = PALMAS_LDO6_CTRL, | |
32b6d3f6 | 173 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6, |
e5ce4208 GG |
174 | }, |
175 | { | |
176 | .name = "LDO7", | |
504382c9 | 177 | .sname = "ldo7-in", |
e5ce4208 GG |
178 | .vsel_addr = PALMAS_LDO7_VOLTAGE, |
179 | .ctrl_addr = PALMAS_LDO7_CTRL, | |
32b6d3f6 | 180 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7, |
e5ce4208 GG |
181 | }, |
182 | { | |
183 | .name = "LDO8", | |
504382c9 | 184 | .sname = "ldo8-in", |
e5ce4208 GG |
185 | .vsel_addr = PALMAS_LDO8_VOLTAGE, |
186 | .ctrl_addr = PALMAS_LDO8_CTRL, | |
32b6d3f6 | 187 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8, |
e5ce4208 GG |
188 | }, |
189 | { | |
190 | .name = "LDO9", | |
504382c9 | 191 | .sname = "ldo9-in", |
e5ce4208 GG |
192 | .vsel_addr = PALMAS_LDO9_VOLTAGE, |
193 | .ctrl_addr = PALMAS_LDO9_CTRL, | |
32b6d3f6 | 194 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9, |
e5ce4208 GG |
195 | }, |
196 | { | |
197 | .name = "LDOLN", | |
504382c9 | 198 | .sname = "ldoln-in", |
e5ce4208 GG |
199 | .vsel_addr = PALMAS_LDOLN_VOLTAGE, |
200 | .ctrl_addr = PALMAS_LDOLN_CTRL, | |
32b6d3f6 | 201 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN, |
e5ce4208 GG |
202 | }, |
203 | { | |
204 | .name = "LDOUSB", | |
504382c9 | 205 | .sname = "ldousb-in", |
e5ce4208 GG |
206 | .vsel_addr = PALMAS_LDOUSB_VOLTAGE, |
207 | .ctrl_addr = PALMAS_LDOUSB_CTRL, | |
32b6d3f6 | 208 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB, |
e5ce4208 | 209 | }, |
aa07f027 LD |
210 | { |
211 | .name = "REGEN1", | |
212 | .ctrl_addr = PALMAS_REGEN1_CTRL, | |
32b6d3f6 | 213 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1, |
aa07f027 LD |
214 | }, |
215 | { | |
216 | .name = "REGEN2", | |
217 | .ctrl_addr = PALMAS_REGEN2_CTRL, | |
32b6d3f6 | 218 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2, |
aa07f027 LD |
219 | }, |
220 | { | |
221 | .name = "REGEN3", | |
222 | .ctrl_addr = PALMAS_REGEN3_CTRL, | |
32b6d3f6 | 223 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3, |
aa07f027 LD |
224 | }, |
225 | { | |
226 | .name = "SYSEN1", | |
227 | .ctrl_addr = PALMAS_SYSEN1_CTRL, | |
32b6d3f6 | 228 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1, |
aa07f027 LD |
229 | }, |
230 | { | |
231 | .name = "SYSEN2", | |
232 | .ctrl_addr = PALMAS_SYSEN2_CTRL, | |
32b6d3f6 | 233 | .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2, |
aa07f027 | 234 | }, |
e5ce4208 GG |
235 | }; |
236 | ||
28d1e8cd LD |
237 | static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; |
238 | ||
e5ce4208 GG |
239 | #define SMPS_CTRL_MODE_OFF 0x00 |
240 | #define SMPS_CTRL_MODE_ON 0x01 | |
241 | #define SMPS_CTRL_MODE_ECO 0x02 | |
242 | #define SMPS_CTRL_MODE_PWM 0x03 | |
243 | ||
0f45aa84 | 244 | #define PALMAS_SMPS_NUM_VOLTAGES 122 |
e5ce4208 GG |
245 | #define PALMAS_SMPS10_NUM_VOLTAGES 2 |
246 | #define PALMAS_LDO_NUM_VOLTAGES 50 | |
247 | ||
248 | #define SMPS10_VSEL (1<<3) | |
249 | #define SMPS10_BOOST_EN (1<<2) | |
250 | #define SMPS10_BYPASS_EN (1<<1) | |
251 | #define SMPS10_SWITCH_EN (1<<0) | |
252 | ||
253 | #define REGULATOR_SLAVE 0 | |
254 | ||
255 | static int palmas_smps_read(struct palmas *palmas, unsigned int reg, | |
256 | unsigned int *dest) | |
257 | { | |
258 | unsigned int addr; | |
259 | ||
260 | addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); | |
261 | ||
262 | return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); | |
263 | } | |
264 | ||
265 | static int palmas_smps_write(struct palmas *palmas, unsigned int reg, | |
266 | unsigned int value) | |
267 | { | |
268 | unsigned int addr; | |
269 | ||
270 | addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); | |
271 | ||
272 | return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); | |
273 | } | |
274 | ||
275 | static int palmas_ldo_read(struct palmas *palmas, unsigned int reg, | |
276 | unsigned int *dest) | |
277 | { | |
278 | unsigned int addr; | |
279 | ||
280 | addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); | |
281 | ||
282 | return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); | |
283 | } | |
284 | ||
285 | static int palmas_ldo_write(struct palmas *palmas, unsigned int reg, | |
286 | unsigned int value) | |
287 | { | |
288 | unsigned int addr; | |
289 | ||
290 | addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); | |
291 | ||
292 | return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); | |
293 | } | |
294 | ||
e5ce4208 GG |
295 | static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) |
296 | { | |
297 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
298 | int id = rdev_get_id(dev); | |
299 | unsigned int reg; | |
51d3a0c9 | 300 | bool rail_enable = true; |
e5ce4208 GG |
301 | |
302 | palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
999f0c7c | 303 | reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
e5ce4208 | 304 | |
51d3a0c9 LD |
305 | if (reg == SMPS_CTRL_MODE_OFF) |
306 | rail_enable = false; | |
307 | ||
e5ce4208 GG |
308 | switch (mode) { |
309 | case REGULATOR_MODE_NORMAL: | |
310 | reg |= SMPS_CTRL_MODE_ON; | |
311 | break; | |
312 | case REGULATOR_MODE_IDLE: | |
313 | reg |= SMPS_CTRL_MODE_ECO; | |
314 | break; | |
315 | case REGULATOR_MODE_FAST: | |
316 | reg |= SMPS_CTRL_MODE_PWM; | |
317 | break; | |
318 | default: | |
319 | return -EINVAL; | |
320 | } | |
e5ce4208 | 321 | |
51d3a0c9 LD |
322 | pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
323 | if (rail_enable) | |
324 | palmas_smps_write(pmic->palmas, | |
325 | palmas_regs_info[id].ctrl_addr, reg); | |
e5ce4208 GG |
326 | return 0; |
327 | } | |
328 | ||
329 | static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) | |
330 | { | |
331 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
332 | int id = rdev_get_id(dev); | |
333 | unsigned int reg; | |
334 | ||
51d3a0c9 | 335 | reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; |
e5ce4208 GG |
336 | |
337 | switch (reg) { | |
338 | case SMPS_CTRL_MODE_ON: | |
339 | return REGULATOR_MODE_NORMAL; | |
340 | case SMPS_CTRL_MODE_ECO: | |
341 | return REGULATOR_MODE_IDLE; | |
342 | case SMPS_CTRL_MODE_PWM: | |
343 | return REGULATOR_MODE_FAST; | |
344 | } | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
28d1e8cd LD |
349 | static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, |
350 | int ramp_delay) | |
351 | { | |
352 | struct palmas_pmic *pmic = rdev_get_drvdata(rdev); | |
353 | int id = rdev_get_id(rdev); | |
354 | unsigned int reg = 0; | |
355 | unsigned int addr = palmas_regs_info[id].tstep_addr; | |
356 | int ret; | |
357 | ||
f22c2bae AL |
358 | /* SMPS3 and SMPS7 do not have tstep_addr setting */ |
359 | switch (id) { | |
360 | case PALMAS_REG_SMPS3: | |
361 | case PALMAS_REG_SMPS7: | |
362 | return 0; | |
363 | } | |
364 | ||
28d1e8cd LD |
365 | if (ramp_delay <= 0) |
366 | reg = 0; | |
0ea34b57 | 367 | else if (ramp_delay <= 2500) |
28d1e8cd | 368 | reg = 3; |
0ea34b57 | 369 | else if (ramp_delay <= 5000) |
28d1e8cd LD |
370 | reg = 2; |
371 | else | |
372 | reg = 1; | |
373 | ||
374 | ret = palmas_smps_write(pmic->palmas, addr, reg); | |
375 | if (ret < 0) { | |
376 | dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); | |
377 | return ret; | |
378 | } | |
379 | ||
380 | pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; | |
381 | return ret; | |
382 | } | |
383 | ||
e5ce4208 | 384 | static struct regulator_ops palmas_ops_smps = { |
dbabd624 K |
385 | .is_enabled = regulator_is_enabled_regmap, |
386 | .enable = regulator_enable_regmap, | |
387 | .disable = regulator_disable_regmap, | |
e5ce4208 GG |
388 | .set_mode = palmas_set_mode_smps, |
389 | .get_mode = palmas_get_mode_smps, | |
bdc4baac AL |
390 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
391 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
dbabd624 K |
392 | .list_voltage = regulator_list_voltage_linear_range, |
393 | .map_voltage = regulator_map_voltage_linear_range, | |
394 | .set_voltage_time_sel = regulator_set_voltage_time_sel, | |
28d1e8cd | 395 | .set_ramp_delay = palmas_smps_set_ramp_delay, |
e5ce4208 GG |
396 | }; |
397 | ||
32b6d3f6 LD |
398 | static struct regulator_ops palmas_ops_ext_control_smps = { |
399 | .set_mode = palmas_set_mode_smps, | |
400 | .get_mode = palmas_get_mode_smps, | |
401 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
402 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
dbabd624 K |
403 | .list_voltage = regulator_list_voltage_linear_range, |
404 | .map_voltage = regulator_map_voltage_linear_range, | |
405 | .set_voltage_time_sel = regulator_set_voltage_time_sel, | |
32b6d3f6 LD |
406 | .set_ramp_delay = palmas_smps_set_ramp_delay, |
407 | }; | |
408 | ||
e5ce4208 GG |
409 | static struct regulator_ops palmas_ops_smps10 = { |
410 | .is_enabled = regulator_is_enabled_regmap, | |
411 | .enable = regulator_enable_regmap, | |
412 | .disable = regulator_disable_regmap, | |
413 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
414 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
8029a006 AL |
415 | .list_voltage = regulator_list_voltage_linear, |
416 | .map_voltage = regulator_map_voltage_linear, | |
77409d9b KVA |
417 | .set_bypass = regulator_set_bypass_regmap, |
418 | .get_bypass = regulator_get_bypass_regmap, | |
e5ce4208 GG |
419 | }; |
420 | ||
421 | static int palmas_is_enabled_ldo(struct regulator_dev *dev) | |
422 | { | |
423 | struct palmas_pmic *pmic = rdev_get_drvdata(dev); | |
424 | int id = rdev_get_id(dev); | |
425 | unsigned int reg; | |
426 | ||
427 | palmas_ldo_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®); | |
428 | ||
429 | reg &= PALMAS_LDO1_CTRL_STATUS; | |
430 | ||
431 | return !!(reg); | |
432 | } | |
433 | ||
e5ce4208 GG |
434 | static struct regulator_ops palmas_ops_ldo = { |
435 | .is_enabled = palmas_is_enabled_ldo, | |
436 | .enable = regulator_enable_regmap, | |
437 | .disable = regulator_disable_regmap, | |
4a247a96 AL |
438 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
439 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
9119ff6a AL |
440 | .list_voltage = regulator_list_voltage_linear, |
441 | .map_voltage = regulator_map_voltage_linear, | |
e5ce4208 GG |
442 | }; |
443 | ||
32b6d3f6 LD |
444 | static struct regulator_ops palmas_ops_ext_control_ldo = { |
445 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
446 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
447 | .list_voltage = regulator_list_voltage_linear, | |
448 | .map_voltage = regulator_map_voltage_linear, | |
449 | }; | |
450 | ||
aa07f027 LD |
451 | static struct regulator_ops palmas_ops_extreg = { |
452 | .is_enabled = regulator_is_enabled_regmap, | |
453 | .enable = regulator_enable_regmap, | |
454 | .disable = regulator_disable_regmap, | |
455 | }; | |
456 | ||
32b6d3f6 LD |
457 | static struct regulator_ops palmas_ops_ext_control_extreg = { |
458 | }; | |
459 | ||
460 | static int palmas_regulator_config_external(struct palmas *palmas, int id, | |
461 | struct palmas_reg_init *reg_init) | |
462 | { | |
463 | int sleep_id = palmas_regs_info[id].sleep_id; | |
464 | int ret; | |
465 | ||
466 | ret = palmas_ext_control_req_config(palmas, sleep_id, | |
467 | reg_init->roof_floor, true); | |
468 | if (ret < 0) | |
469 | dev_err(palmas->dev, | |
470 | "Ext control config for regulator %d failed %d\n", | |
471 | id, ret); | |
472 | return ret; | |
473 | } | |
474 | ||
e5ce4208 GG |
475 | /* |
476 | * setup the hardware based sleep configuration of the SMPS/LDO regulators | |
477 | * from the platform data. This is different to the software based control | |
478 | * supported by the regulator framework as it is controlled by toggling | |
479 | * pins on the PMIC such as PREQ, SYSEN, ... | |
480 | */ | |
481 | static int palmas_smps_init(struct palmas *palmas, int id, | |
482 | struct palmas_reg_init *reg_init) | |
483 | { | |
484 | unsigned int reg; | |
485 | unsigned int addr; | |
486 | int ret; | |
487 | ||
488 | addr = palmas_regs_info[id].ctrl_addr; | |
489 | ||
490 | ret = palmas_smps_read(palmas, addr, ®); | |
491 | if (ret) | |
492 | return ret; | |
493 | ||
fedd89b1 | 494 | switch (id) { |
77409d9b KVA |
495 | case PALMAS_REG_SMPS10_OUT1: |
496 | case PALMAS_REG_SMPS10_OUT2: | |
30590d04 LD |
497 | reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; |
498 | if (reg_init->mode_sleep) | |
fedd89b1 AL |
499 | reg |= reg_init->mode_sleep << |
500 | PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; | |
fedd89b1 AL |
501 | break; |
502 | default: | |
e5ce4208 GG |
503 | if (reg_init->warm_reset) |
504 | reg |= PALMAS_SMPS12_CTRL_WR_S; | |
30590d04 LD |
505 | else |
506 | reg &= ~PALMAS_SMPS12_CTRL_WR_S; | |
e5ce4208 GG |
507 | |
508 | if (reg_init->roof_floor) | |
509 | reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; | |
30590d04 LD |
510 | else |
511 | reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; | |
e5ce4208 | 512 | |
30590d04 LD |
513 | reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; |
514 | if (reg_init->mode_sleep) | |
e5ce4208 GG |
515 | reg |= reg_init->mode_sleep << |
516 | PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; | |
e5ce4208 | 517 | } |
fedd89b1 | 518 | |
e5ce4208 GG |
519 | ret = palmas_smps_write(palmas, addr, reg); |
520 | if (ret) | |
521 | return ret; | |
522 | ||
e5ce4208 GG |
523 | if (palmas_regs_info[id].vsel_addr && reg_init->vsel) { |
524 | addr = palmas_regs_info[id].vsel_addr; | |
525 | ||
526 | reg = reg_init->vsel; | |
527 | ||
528 | ret = palmas_smps_write(palmas, addr, reg); | |
529 | if (ret) | |
530 | return ret; | |
531 | } | |
532 | ||
32b6d3f6 LD |
533 | if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && |
534 | (id != PALMAS_REG_SMPS10_OUT2)) { | |
535 | /* Enable externally controlled regulator */ | |
536 | addr = palmas_regs_info[id].ctrl_addr; | |
537 | ret = palmas_smps_read(palmas, addr, ®); | |
538 | if (ret < 0) | |
539 | return ret; | |
e5ce4208 | 540 | |
32b6d3f6 LD |
541 | if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { |
542 | reg |= SMPS_CTRL_MODE_ON; | |
543 | ret = palmas_smps_write(palmas, addr, reg); | |
544 | if (ret < 0) | |
545 | return ret; | |
546 | } | |
547 | return palmas_regulator_config_external(palmas, id, reg_init); | |
548 | } | |
e5ce4208 GG |
549 | return 0; |
550 | } | |
551 | ||
552 | static int palmas_ldo_init(struct palmas *palmas, int id, | |
553 | struct palmas_reg_init *reg_init) | |
554 | { | |
555 | unsigned int reg; | |
556 | unsigned int addr; | |
557 | int ret; | |
558 | ||
559 | addr = palmas_regs_info[id].ctrl_addr; | |
560 | ||
2735daeb | 561 | ret = palmas_ldo_read(palmas, addr, ®); |
e5ce4208 GG |
562 | if (ret) |
563 | return ret; | |
564 | ||
565 | if (reg_init->warm_reset) | |
566 | reg |= PALMAS_LDO1_CTRL_WR_S; | |
30590d04 LD |
567 | else |
568 | reg &= ~PALMAS_LDO1_CTRL_WR_S; | |
e5ce4208 GG |
569 | |
570 | if (reg_init->mode_sleep) | |
571 | reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; | |
30590d04 LD |
572 | else |
573 | reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; | |
e5ce4208 | 574 | |
2735daeb | 575 | ret = palmas_ldo_write(palmas, addr, reg); |
e5ce4208 GG |
576 | if (ret) |
577 | return ret; | |
578 | ||
32b6d3f6 LD |
579 | if (reg_init->roof_floor) { |
580 | /* Enable externally controlled regulator */ | |
581 | addr = palmas_regs_info[id].ctrl_addr; | |
582 | ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, | |
583 | addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, | |
584 | PALMAS_LDO1_CTRL_MODE_ACTIVE); | |
585 | if (ret < 0) { | |
586 | dev_err(palmas->dev, | |
587 | "LDO Register 0x%02x update failed %d\n", | |
588 | addr, ret); | |
589 | return ret; | |
590 | } | |
591 | return palmas_regulator_config_external(palmas, id, reg_init); | |
592 | } | |
e5ce4208 GG |
593 | return 0; |
594 | } | |
595 | ||
aa07f027 LD |
596 | static int palmas_extreg_init(struct palmas *palmas, int id, |
597 | struct palmas_reg_init *reg_init) | |
598 | { | |
599 | unsigned int addr; | |
600 | int ret; | |
601 | unsigned int val = 0; | |
602 | ||
603 | addr = palmas_regs_info[id].ctrl_addr; | |
604 | ||
605 | if (reg_init->mode_sleep) | |
606 | val = PALMAS_REGEN1_CTRL_MODE_SLEEP; | |
607 | ||
608 | ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, | |
609 | addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); | |
610 | if (ret < 0) { | |
611 | dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", | |
612 | addr, ret); | |
613 | return ret; | |
614 | } | |
32b6d3f6 LD |
615 | |
616 | if (reg_init->roof_floor) { | |
617 | /* Enable externally controlled regulator */ | |
618 | addr = palmas_regs_info[id].ctrl_addr; | |
619 | ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, | |
620 | addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, | |
621 | PALMAS_REGEN1_CTRL_MODE_ACTIVE); | |
622 | if (ret < 0) { | |
623 | dev_err(palmas->dev, | |
624 | "Resource Register 0x%02x update failed %d\n", | |
625 | addr, ret); | |
626 | return ret; | |
627 | } | |
628 | return palmas_regulator_config_external(palmas, id, reg_init); | |
629 | } | |
aa07f027 LD |
630 | return 0; |
631 | } | |
632 | ||
17c11a76 LD |
633 | static void palmas_enable_ldo8_track(struct palmas *palmas) |
634 | { | |
635 | unsigned int reg; | |
636 | unsigned int addr; | |
637 | int ret; | |
638 | ||
639 | addr = palmas_regs_info[PALMAS_REG_LDO8].ctrl_addr; | |
640 | ||
641 | ret = palmas_ldo_read(palmas, addr, ®); | |
642 | if (ret) { | |
643 | dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); | |
644 | return; | |
645 | } | |
646 | ||
647 | reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; | |
648 | ret = palmas_ldo_write(palmas, addr, reg); | |
649 | if (ret < 0) { | |
650 | dev_err(palmas->dev, "Error in enabling tracking mode\n"); | |
651 | return; | |
652 | } | |
653 | /* | |
654 | * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 | |
655 | * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, | |
656 | * and can be set from 0.45 to 1.65 V. | |
657 | */ | |
658 | addr = palmas_regs_info[PALMAS_REG_LDO8].vsel_addr; | |
659 | ret = palmas_ldo_read(palmas, addr, ®); | |
660 | if (ret) { | |
661 | dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); | |
662 | return; | |
663 | } | |
664 | ||
665 | reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; | |
666 | ret = palmas_ldo_write(palmas, addr, reg); | |
667 | if (ret < 0) | |
668 | dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); | |
669 | ||
670 | return; | |
671 | } | |
672 | ||
a361cd9f GG |
673 | static struct of_regulator_match palmas_matches[] = { |
674 | { .name = "smps12", }, | |
675 | { .name = "smps123", }, | |
676 | { .name = "smps3", }, | |
677 | { .name = "smps45", }, | |
678 | { .name = "smps457", }, | |
679 | { .name = "smps6", }, | |
680 | { .name = "smps7", }, | |
681 | { .name = "smps8", }, | |
682 | { .name = "smps9", }, | |
77409d9b KVA |
683 | { .name = "smps10_out2", }, |
684 | { .name = "smps10_out1", }, | |
a361cd9f GG |
685 | { .name = "ldo1", }, |
686 | { .name = "ldo2", }, | |
687 | { .name = "ldo3", }, | |
688 | { .name = "ldo4", }, | |
689 | { .name = "ldo5", }, | |
690 | { .name = "ldo6", }, | |
691 | { .name = "ldo7", }, | |
692 | { .name = "ldo8", }, | |
693 | { .name = "ldo9", }, | |
694 | { .name = "ldoln", }, | |
695 | { .name = "ldousb", }, | |
aa07f027 LD |
696 | { .name = "regen1", }, |
697 | { .name = "regen2", }, | |
698 | { .name = "regen3", }, | |
699 | { .name = "sysen1", }, | |
700 | { .name = "sysen2", }, | |
a361cd9f GG |
701 | }; |
702 | ||
a5023574 | 703 | static void palmas_dt_to_pdata(struct device *dev, |
a361cd9f GG |
704 | struct device_node *node, |
705 | struct palmas_pmic_platform_data *pdata) | |
706 | { | |
707 | struct device_node *regulators; | |
708 | u32 prop; | |
709 | int idx, ret; | |
710 | ||
c92f5dd2 | 711 | node = of_node_get(node); |
acc1ccad | 712 | regulators = of_get_child_by_name(node, "regulators"); |
a361cd9f GG |
713 | if (!regulators) { |
714 | dev_info(dev, "regulator node not found\n"); | |
715 | return; | |
716 | } | |
717 | ||
718 | ret = of_regulator_match(dev, regulators, palmas_matches, | |
719 | PALMAS_NUM_REGS); | |
c92f5dd2 | 720 | of_node_put(regulators); |
a361cd9f GG |
721 | if (ret < 0) { |
722 | dev_err(dev, "Error parsing regulator init data: %d\n", ret); | |
723 | return; | |
724 | } | |
725 | ||
726 | for (idx = 0; idx < PALMAS_NUM_REGS; idx++) { | |
727 | if (!palmas_matches[idx].init_data || | |
728 | !palmas_matches[idx].of_node) | |
729 | continue; | |
730 | ||
731 | pdata->reg_data[idx] = palmas_matches[idx].init_data; | |
732 | ||
733 | pdata->reg_init[idx] = devm_kzalloc(dev, | |
734 | sizeof(struct palmas_reg_init), GFP_KERNEL); | |
735 | ||
7be859f7 | 736 | pdata->reg_init[idx]->warm_reset = |
71f2146f AL |
737 | of_property_read_bool(palmas_matches[idx].of_node, |
738 | "ti,warm-reset"); | |
a361cd9f | 739 | |
32b6d3f6 LD |
740 | ret = of_property_read_u32(palmas_matches[idx].of_node, |
741 | "ti,roof-floor", &prop); | |
742 | /* EINVAL: Property not found */ | |
743 | if (ret != -EINVAL) { | |
744 | int econtrol; | |
745 | ||
746 | /* use default value, when no value is specified */ | |
747 | econtrol = PALMAS_EXT_CONTROL_NSLEEP; | |
748 | if (!ret) { | |
749 | switch (prop) { | |
750 | case 1: | |
751 | econtrol = PALMAS_EXT_CONTROL_ENABLE1; | |
752 | break; | |
753 | case 2: | |
754 | econtrol = PALMAS_EXT_CONTROL_ENABLE2; | |
755 | break; | |
756 | case 3: | |
757 | econtrol = PALMAS_EXT_CONTROL_NSLEEP; | |
758 | break; | |
759 | default: | |
760 | WARN_ON(1); | |
761 | dev_warn(dev, | |
762 | "%s: Invalid roof-floor option: %u\n", | |
763 | palmas_matches[idx].name, prop); | |
764 | break; | |
765 | } | |
766 | } | |
767 | pdata->reg_init[idx]->roof_floor = econtrol; | |
768 | } | |
a361cd9f GG |
769 | |
770 | ret = of_property_read_u32(palmas_matches[idx].of_node, | |
3c870e3f | 771 | "ti,mode-sleep", &prop); |
a361cd9f GG |
772 | if (!ret) |
773 | pdata->reg_init[idx]->mode_sleep = prop; | |
774 | ||
7be859f7 GG |
775 | ret = of_property_read_bool(palmas_matches[idx].of_node, |
776 | "ti,smps-range"); | |
777 | if (ret) | |
778 | pdata->reg_init[idx]->vsel = | |
779 | PALMAS_SMPS12_VOLTAGE_RANGE; | |
a361cd9f | 780 | |
17c11a76 LD |
781 | if (idx == PALMAS_REG_LDO8) |
782 | pdata->enable_ldo8_tracking = of_property_read_bool( | |
783 | palmas_matches[idx].of_node, | |
784 | "ti,enable-ldo8-tracking"); | |
a361cd9f GG |
785 | } |
786 | ||
7be859f7 | 787 | pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); |
a361cd9f GG |
788 | } |
789 | ||
790 | ||
bbcf50b1 | 791 | static int palmas_regulators_probe(struct platform_device *pdev) |
e5ce4208 GG |
792 | { |
793 | struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); | |
dff91d0b | 794 | struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); |
a361cd9f | 795 | struct device_node *node = pdev->dev.of_node; |
e5ce4208 GG |
796 | struct regulator_dev *rdev; |
797 | struct regulator_config config = { }; | |
798 | struct palmas_pmic *pmic; | |
799 | struct palmas_reg_init *reg_init; | |
800 | int id = 0, ret; | |
801 | unsigned int addr, reg; | |
802 | ||
a361cd9f GG |
803 | if (node && !pdata) { |
804 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
805 | ||
806 | if (!pdata) | |
807 | return -ENOMEM; | |
808 | ||
809 | palmas_dt_to_pdata(&pdev->dev, node, pdata); | |
810 | } | |
e5ce4208 GG |
811 | |
812 | pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); | |
813 | if (!pmic) | |
814 | return -ENOMEM; | |
815 | ||
816 | pmic->dev = &pdev->dev; | |
817 | pmic->palmas = palmas; | |
818 | palmas->pmic = pmic; | |
819 | platform_set_drvdata(pdev, pmic); | |
820 | ||
821 | ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); | |
822 | if (ret) | |
1c9d2d71 | 823 | return ret; |
e5ce4208 GG |
824 | |
825 | if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) | |
826 | pmic->smps123 = 1; | |
827 | ||
828 | if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) | |
829 | pmic->smps457 = 1; | |
830 | ||
831 | config.regmap = palmas->regmap[REGULATOR_SLAVE]; | |
832 | config.dev = &pdev->dev; | |
833 | config.driver_data = pmic; | |
834 | ||
835 | for (id = 0; id < PALMAS_REG_LDO1; id++) { | |
28d1e8cd | 836 | bool ramp_delay_support = false; |
e5ce4208 GG |
837 | |
838 | /* | |
839 | * Miss out regulators which are not available due | |
840 | * to slaving configurations. | |
841 | */ | |
842 | switch (id) { | |
843 | case PALMAS_REG_SMPS12: | |
844 | case PALMAS_REG_SMPS3: | |
845 | if (pmic->smps123) | |
846 | continue; | |
28d1e8cd LD |
847 | if (id == PALMAS_REG_SMPS12) |
848 | ramp_delay_support = true; | |
e5ce4208 GG |
849 | break; |
850 | case PALMAS_REG_SMPS123: | |
851 | if (!pmic->smps123) | |
852 | continue; | |
28d1e8cd | 853 | ramp_delay_support = true; |
e5ce4208 GG |
854 | break; |
855 | case PALMAS_REG_SMPS45: | |
856 | case PALMAS_REG_SMPS7: | |
857 | if (pmic->smps457) | |
858 | continue; | |
28d1e8cd LD |
859 | if (id == PALMAS_REG_SMPS45) |
860 | ramp_delay_support = true; | |
e5ce4208 GG |
861 | break; |
862 | case PALMAS_REG_SMPS457: | |
863 | if (!pmic->smps457) | |
864 | continue; | |
28d1e8cd LD |
865 | ramp_delay_support = true; |
866 | break; | |
77409d9b KVA |
867 | case PALMAS_REG_SMPS10_OUT1: |
868 | case PALMAS_REG_SMPS10_OUT2: | |
1ffb0be3 K |
869 | if (!PALMAS_PMIC_HAS(palmas, SMPS10_BOOST)) |
870 | continue; | |
28d1e8cd LD |
871 | } |
872 | ||
3f4d6364 | 873 | if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) |
28d1e8cd LD |
874 | ramp_delay_support = true; |
875 | ||
876 | if (ramp_delay_support) { | |
877 | addr = palmas_regs_info[id].tstep_addr; | |
878 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
879 | if (ret < 0) { | |
880 | dev_err(&pdev->dev, | |
881 | "reading TSTEP reg failed: %d\n", ret); | |
51c86b3e | 882 | return ret; |
28d1e8cd LD |
883 | } |
884 | pmic->desc[id].ramp_delay = | |
885 | palmas_smps_ramp_delay[reg & 0x3]; | |
886 | pmic->ramp_delay[id] = pmic->desc[id].ramp_delay; | |
e5ce4208 GG |
887 | } |
888 | ||
bdc4baac AL |
889 | /* Initialise sleep/init values from platform data */ |
890 | if (pdata && pdata->reg_init[id]) { | |
891 | reg_init = pdata->reg_init[id]; | |
892 | ret = palmas_smps_init(palmas, id, reg_init); | |
893 | if (ret) | |
51c86b3e | 894 | return ret; |
32b6d3f6 LD |
895 | } else { |
896 | reg_init = NULL; | |
bdc4baac AL |
897 | } |
898 | ||
e5ce4208 GG |
899 | /* Register the regulators */ |
900 | pmic->desc[id].name = palmas_regs_info[id].name; | |
901 | pmic->desc[id].id = id; | |
902 | ||
fedd89b1 | 903 | switch (id) { |
77409d9b KVA |
904 | case PALMAS_REG_SMPS10_OUT1: |
905 | case PALMAS_REG_SMPS10_OUT2: | |
e5ce4208 GG |
906 | pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; |
907 | pmic->desc[id].ops = &palmas_ops_smps10; | |
12565b16 AL |
908 | pmic->desc[id].vsel_reg = |
909 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
910 | PALMAS_SMPS10_CTRL); | |
e5ce4208 | 911 | pmic->desc[id].vsel_mask = SMPS10_VSEL; |
a68de074 GG |
912 | pmic->desc[id].enable_reg = |
913 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
f232168d | 914 | PALMAS_SMPS10_CTRL); |
77409d9b KVA |
915 | if (id == PALMAS_REG_SMPS10_OUT1) |
916 | pmic->desc[id].enable_mask = SMPS10_SWITCH_EN; | |
917 | else | |
918 | pmic->desc[id].enable_mask = SMPS10_BOOST_EN; | |
919 | pmic->desc[id].bypass_reg = | |
920 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
921 | PALMAS_SMPS10_CTRL); | |
922 | pmic->desc[id].bypass_mask = SMPS10_BYPASS_EN; | |
8029a006 AL |
923 | pmic->desc[id].min_uV = 3750000; |
924 | pmic->desc[id].uV_step = 1250000; | |
fedd89b1 AL |
925 | break; |
926 | default: | |
bdc4baac AL |
927 | /* |
928 | * Read and store the RANGE bit for later use | |
929 | * This must be done before regulator is probed, | |
51d3a0c9 LD |
930 | * otherwise we error in probe with unsupportable |
931 | * ranges. Read the current smps mode for later use. | |
bdc4baac | 932 | */ |
e5ce4208 | 933 | addr = palmas_regs_info[id].vsel_addr; |
dbabd624 | 934 | pmic->desc[id].n_linear_ranges = 3; |
e5ce4208 GG |
935 | |
936 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
937 | if (ret) | |
51c86b3e | 938 | return ret; |
e5ce4208 GG |
939 | if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) |
940 | pmic->range[id] = 1; | |
dbabd624 K |
941 | if (pmic->range[id]) |
942 | pmic->desc[id].linear_ranges = smps_high_ranges; | |
943 | else | |
944 | pmic->desc[id].linear_ranges = smps_low_ranges; | |
bdc4baac | 945 | |
32b6d3f6 LD |
946 | if (reg_init && reg_init->roof_floor) |
947 | pmic->desc[id].ops = | |
948 | &palmas_ops_ext_control_smps; | |
949 | else | |
950 | pmic->desc[id].ops = &palmas_ops_smps; | |
bdc4baac AL |
951 | pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; |
952 | pmic->desc[id].vsel_reg = | |
953 | PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, | |
954 | palmas_regs_info[id].vsel_addr); | |
955 | pmic->desc[id].vsel_mask = | |
956 | PALMAS_SMPS12_VOLTAGE_VSEL_MASK; | |
51d3a0c9 LD |
957 | |
958 | /* Read the smps mode for later use. */ | |
959 | addr = palmas_regs_info[id].ctrl_addr; | |
960 | ret = palmas_smps_read(pmic->palmas, addr, ®); | |
961 | if (ret) | |
51c86b3e | 962 | return ret; |
51d3a0c9 LD |
963 | pmic->current_reg_mode[id] = reg & |
964 | PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; | |
e5ce4208 GG |
965 | } |
966 | ||
bdc4baac AL |
967 | pmic->desc[id].type = REGULATOR_VOLTAGE; |
968 | pmic->desc[id].owner = THIS_MODULE; | |
969 | ||
a361cd9f | 970 | if (pdata) |
e5ce4208 GG |
971 | config.init_data = pdata->reg_data[id]; |
972 | else | |
973 | config.init_data = NULL; | |
974 | ||
504382c9 | 975 | pmic->desc[id].supply_name = palmas_regs_info[id].sname; |
a361cd9f GG |
976 | config.of_node = palmas_matches[id].of_node; |
977 | ||
51c86b3e SK |
978 | rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id], |
979 | &config); | |
e5ce4208 GG |
980 | if (IS_ERR(rdev)) { |
981 | dev_err(&pdev->dev, | |
982 | "failed to register %s regulator\n", | |
983 | pdev->name); | |
51c86b3e | 984 | return PTR_ERR(rdev); |
e5ce4208 GG |
985 | } |
986 | ||
987 | /* Save regulator for cleanup */ | |
988 | pmic->rdev[id] = rdev; | |
989 | } | |
990 | ||
991 | /* Start this loop from the id left from previous loop */ | |
992 | for (; id < PALMAS_NUM_REGS; id++) { | |
32b6d3f6 LD |
993 | if (pdata && pdata->reg_init[id]) |
994 | reg_init = pdata->reg_init[id]; | |
995 | else | |
996 | reg_init = NULL; | |
e5ce4208 GG |
997 | |
998 | /* Miss out regulators which are not available due | |
999 | * to alternate functions. | |
1000 | */ | |
1001 | ||
1002 | /* Register the regulators */ | |
1003 | pmic->desc[id].name = palmas_regs_info[id].name; | |
1004 | pmic->desc[id].id = id; | |
e5ce4208 GG |
1005 | pmic->desc[id].type = REGULATOR_VOLTAGE; |
1006 | pmic->desc[id].owner = THIS_MODULE; | |
aa07f027 LD |
1007 | |
1008 | if (id < PALMAS_REG_REGEN1) { | |
1009 | pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; | |
32b6d3f6 LD |
1010 | if (reg_init && reg_init->roof_floor) |
1011 | pmic->desc[id].ops = | |
1012 | &palmas_ops_ext_control_ldo; | |
1013 | else | |
1014 | pmic->desc[id].ops = &palmas_ops_ldo; | |
aa07f027 LD |
1015 | pmic->desc[id].min_uV = 900000; |
1016 | pmic->desc[id].uV_step = 50000; | |
1017 | pmic->desc[id].linear_min_sel = 1; | |
087d30e3 | 1018 | pmic->desc[id].enable_time = 500; |
aa07f027 LD |
1019 | pmic->desc[id].vsel_reg = |
1020 | PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, | |
4a247a96 | 1021 | palmas_regs_info[id].vsel_addr); |
aa07f027 LD |
1022 | pmic->desc[id].vsel_mask = |
1023 | PALMAS_LDO1_VOLTAGE_VSEL_MASK; | |
1024 | pmic->desc[id].enable_reg = | |
1025 | PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, | |
1026 | palmas_regs_info[id].ctrl_addr); | |
1027 | pmic->desc[id].enable_mask = | |
1028 | PALMAS_LDO1_CTRL_MODE_ACTIVE; | |
17c11a76 LD |
1029 | |
1030 | /* Check if LDO8 is in tracking mode or not */ | |
1031 | if (pdata && (id == PALMAS_REG_LDO8) && | |
1032 | pdata->enable_ldo8_tracking) { | |
1033 | palmas_enable_ldo8_track(palmas); | |
3df4a81c | 1034 | pmic->desc[id].min_uV = 450000; |
17c11a76 LD |
1035 | pmic->desc[id].uV_step = 25000; |
1036 | } | |
087d30e3 LD |
1037 | |
1038 | /* LOD6 in vibrator mode will have enable time 2000us */ | |
1039 | if (pdata && pdata->ldo6_vibrator && | |
1040 | (id == PALMAS_REG_LDO6)) | |
1041 | pmic->desc[id].enable_time = 2000; | |
aa07f027 LD |
1042 | } else { |
1043 | pmic->desc[id].n_voltages = 1; | |
32b6d3f6 LD |
1044 | if (reg_init && reg_init->roof_floor) |
1045 | pmic->desc[id].ops = | |
1046 | &palmas_ops_ext_control_extreg; | |
1047 | else | |
1048 | pmic->desc[id].ops = &palmas_ops_extreg; | |
aa07f027 LD |
1049 | pmic->desc[id].enable_reg = |
1050 | PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, | |
a68de074 | 1051 | palmas_regs_info[id].ctrl_addr); |
aa07f027 LD |
1052 | pmic->desc[id].enable_mask = |
1053 | PALMAS_REGEN1_CTRL_MODE_ACTIVE; | |
1054 | } | |
e5ce4208 | 1055 | |
a361cd9f | 1056 | if (pdata) |
e5ce4208 GG |
1057 | config.init_data = pdata->reg_data[id]; |
1058 | else | |
1059 | config.init_data = NULL; | |
1060 | ||
504382c9 | 1061 | pmic->desc[id].supply_name = palmas_regs_info[id].sname; |
a361cd9f GG |
1062 | config.of_node = palmas_matches[id].of_node; |
1063 | ||
51c86b3e SK |
1064 | rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id], |
1065 | &config); | |
e5ce4208 GG |
1066 | if (IS_ERR(rdev)) { |
1067 | dev_err(&pdev->dev, | |
1068 | "failed to register %s regulator\n", | |
1069 | pdev->name); | |
51c86b3e | 1070 | return PTR_ERR(rdev); |
e5ce4208 GG |
1071 | } |
1072 | ||
1073 | /* Save regulator for cleanup */ | |
1074 | pmic->rdev[id] = rdev; | |
1075 | ||
1076 | /* Initialise sleep/init values from platform data */ | |
a361cd9f | 1077 | if (pdata) { |
e5ce4208 GG |
1078 | reg_init = pdata->reg_init[id]; |
1079 | if (reg_init) { | |
aa07f027 LD |
1080 | if (id < PALMAS_REG_REGEN1) |
1081 | ret = palmas_ldo_init(palmas, | |
1082 | id, reg_init); | |
1083 | else | |
1084 | ret = palmas_extreg_init(palmas, | |
1085 | id, reg_init); | |
cb2e45e3 | 1086 | if (ret) |
51c86b3e | 1087 | return ret; |
e5ce4208 GG |
1088 | } |
1089 | } | |
1090 | } | |
1091 | ||
17c11a76 | 1092 | |
e5ce4208 | 1093 | return 0; |
e5ce4208 GG |
1094 | } |
1095 | ||
2449df9f | 1096 | static const struct of_device_id of_palmas_match_tbl[] = { |
a361cd9f | 1097 | { .compatible = "ti,palmas-pmic", }, |
7be859f7 GG |
1098 | { .compatible = "ti,twl6035-pmic", }, |
1099 | { .compatible = "ti,twl6036-pmic", }, | |
1100 | { .compatible = "ti,twl6037-pmic", }, | |
1101 | { .compatible = "ti,tps65913-pmic", }, | |
1102 | { .compatible = "ti,tps65914-pmic", }, | |
1103 | { .compatible = "ti,tps80036-pmic", }, | |
b5c46787 | 1104 | { .compatible = "ti,tps659038-pmic", }, |
a361cd9f GG |
1105 | { /* end */ } |
1106 | }; | |
1107 | ||
e5ce4208 GG |
1108 | static struct platform_driver palmas_driver = { |
1109 | .driver = { | |
1110 | .name = "palmas-pmic", | |
a361cd9f | 1111 | .of_match_table = of_palmas_match_tbl, |
e5ce4208 GG |
1112 | .owner = THIS_MODULE, |
1113 | }, | |
bbcf50b1 | 1114 | .probe = palmas_regulators_probe, |
e5ce4208 GG |
1115 | }; |
1116 | ||
1117 | static int __init palmas_init(void) | |
1118 | { | |
1119 | return platform_driver_register(&palmas_driver); | |
1120 | } | |
1121 | subsys_initcall(palmas_init); | |
1122 | ||
1123 | static void __exit palmas_exit(void) | |
1124 | { | |
1125 | platform_driver_unregister(&palmas_driver); | |
1126 | } | |
1127 | module_exit(palmas_exit); | |
1128 | ||
1129 | MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); | |
1130 | MODULE_DESCRIPTION("Palmas voltage regulator driver"); | |
1131 | MODULE_LICENSE("GPL"); | |
1132 | MODULE_ALIAS("platform:palmas-pmic"); | |
a361cd9f | 1133 | MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); |