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cac28ae6 NR |
1 | /* |
2 | * Split TWL6030 logic from twl-regulator.c: | |
3 | * Copyright (C) 2008 David Brownell | |
4 | * | |
5 | * Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/string.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/of.h> | |
20 | #include <linux/of_device.h> | |
21 | #include <linux/regulator/driver.h> | |
22 | #include <linux/regulator/machine.h> | |
23 | #include <linux/regulator/of_regulator.h> | |
a2054256 | 24 | #include <linux/mfd/twl.h> |
cac28ae6 NR |
25 | #include <linux/delay.h> |
26 | ||
27 | struct twlreg_info { | |
28 | /* start of regulator's PM_RECEIVER control register bank */ | |
29 | u8 base; | |
30 | ||
31 | /* twl resource ID, for resource control state machine */ | |
32 | u8 id; | |
33 | ||
cac28ae6 NR |
34 | /* chip constraints on regulator behavior */ |
35 | u16 min_mV; | |
cac28ae6 NR |
36 | |
37 | u8 flags; | |
38 | ||
39 | /* used by regulator core */ | |
40 | struct regulator_desc desc; | |
41 | ||
42 | /* chip specific features */ | |
43 | unsigned long features; | |
44 | ||
45 | /* data passed from board for external get/set voltage */ | |
46 | void *data; | |
47 | }; | |
48 | ||
49 | ||
50 | /* LDO control registers ... offset is from the base of its register bank. | |
51 | * The first three registers of all power resource banks help hardware to | |
52 | * manage the various resource groups. | |
53 | */ | |
54 | /* Common offset in TWL4030/6030 */ | |
55 | #define VREG_GRP 0 | |
56 | /* TWL6030 register offsets */ | |
57 | #define VREG_TRANS 1 | |
58 | #define VREG_STATE 2 | |
59 | #define VREG_VOLTAGE 3 | |
60 | #define VREG_VOLTAGE_SMPS 4 | |
61 | /* TWL6030 Misc register offsets */ | |
62 | #define VREG_BC_ALL 1 | |
63 | #define VREG_BC_REF 2 | |
64 | #define VREG_BC_PROC 3 | |
65 | #define VREG_BC_CLK_RST 4 | |
66 | ||
67 | /* TWL6030 LDO register values for CFG_STATE */ | |
68 | #define TWL6030_CFG_STATE_OFF 0x00 | |
69 | #define TWL6030_CFG_STATE_ON 0x01 | |
70 | #define TWL6030_CFG_STATE_OFF2 0x02 | |
71 | #define TWL6030_CFG_STATE_SLEEP 0x03 | |
72 | #define TWL6030_CFG_STATE_GRP_SHIFT 5 | |
73 | #define TWL6030_CFG_STATE_APP_SHIFT 2 | |
74 | #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) | |
75 | #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ | |
76 | TWL6030_CFG_STATE_APP_SHIFT) | |
77 | ||
78 | /* Flags for SMPS Voltage reading */ | |
79 | #define SMPS_OFFSET_EN BIT(0) | |
80 | #define SMPS_EXTENDED_EN BIT(1) | |
81 | ||
82 | /* twl6032 SMPS EPROM values */ | |
83 | #define TWL6030_SMPS_OFFSET 0xB0 | |
84 | #define TWL6030_SMPS_MULT 0xB3 | |
85 | #define SMPS_MULTOFFSET_SMPS4 BIT(0) | |
86 | #define SMPS_MULTOFFSET_VIO BIT(1) | |
87 | #define SMPS_MULTOFFSET_SMPS3 BIT(6) | |
88 | ||
89 | static inline int | |
90 | twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) | |
91 | { | |
92 | u8 value; | |
93 | int status; | |
94 | ||
95 | status = twl_i2c_read_u8(slave_subgp, | |
96 | &value, info->base + offset); | |
97 | return (status < 0) ? status : value; | |
98 | } | |
99 | ||
100 | static inline int | |
101 | twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, | |
102 | u8 value) | |
103 | { | |
104 | return twl_i2c_write_u8(slave_subgp, | |
105 | value, info->base + offset); | |
106 | } | |
107 | ||
108 | /* generic power resource operations, which work on all regulators */ | |
109 | static int twlreg_grp(struct regulator_dev *rdev) | |
110 | { | |
111 | return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, | |
112 | VREG_GRP); | |
113 | } | |
114 | ||
115 | /* | |
116 | * Enable/disable regulators by joining/leaving the P1 (processor) group. | |
117 | * We assume nobody else is updating the DEV_GRP registers. | |
118 | */ | |
119 | /* definition for 6030 family */ | |
120 | #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */ | |
121 | #define P2_GRP_6030 BIT(1) /* "peripherals" */ | |
122 | #define P1_GRP_6030 BIT(0) /* CPU/Linux */ | |
123 | ||
124 | static int twl6030reg_is_enabled(struct regulator_dev *rdev) | |
125 | { | |
126 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
127 | int grp = 0, val; | |
128 | ||
129 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { | |
130 | grp = twlreg_grp(rdev); | |
131 | if (grp < 0) | |
132 | return grp; | |
133 | grp &= P1_GRP_6030; | |
134 | } else { | |
135 | grp = 1; | |
136 | } | |
137 | ||
138 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); | |
139 | val = TWL6030_CFG_STATE_APP(val); | |
140 | ||
141 | return grp && (val == TWL6030_CFG_STATE_ON); | |
142 | } | |
143 | ||
144 | #define PB_I2C_BUSY BIT(0) | |
145 | #define PB_I2C_BWEN BIT(1) | |
146 | ||
147 | ||
148 | static int twl6030reg_enable(struct regulator_dev *rdev) | |
149 | { | |
150 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
151 | int grp = 0; | |
152 | int ret; | |
153 | ||
154 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
155 | grp = twlreg_grp(rdev); | |
156 | if (grp < 0) | |
157 | return grp; | |
158 | ||
159 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
160 | grp << TWL6030_CFG_STATE_GRP_SHIFT | | |
161 | TWL6030_CFG_STATE_ON); | |
162 | return ret; | |
163 | } | |
164 | ||
165 | static int twl6030reg_disable(struct regulator_dev *rdev) | |
166 | { | |
167 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
168 | int grp = 0; | |
169 | int ret; | |
170 | ||
171 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
172 | grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; | |
173 | ||
174 | /* For 6030, set the off state for all grps enabled */ | |
175 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
176 | (grp) << TWL6030_CFG_STATE_GRP_SHIFT | | |
177 | TWL6030_CFG_STATE_OFF); | |
178 | ||
179 | return ret; | |
180 | } | |
181 | ||
182 | static int twl6030reg_get_status(struct regulator_dev *rdev) | |
183 | { | |
184 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
185 | int val; | |
186 | ||
187 | val = twlreg_grp(rdev); | |
188 | if (val < 0) | |
189 | return val; | |
190 | ||
191 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); | |
192 | ||
193 | switch (TWL6030_CFG_STATE_APP(val)) { | |
194 | case TWL6030_CFG_STATE_ON: | |
195 | return REGULATOR_STATUS_NORMAL; | |
196 | ||
197 | case TWL6030_CFG_STATE_SLEEP: | |
198 | return REGULATOR_STATUS_STANDBY; | |
199 | ||
200 | case TWL6030_CFG_STATE_OFF: | |
201 | case TWL6030_CFG_STATE_OFF2: | |
202 | default: | |
203 | break; | |
204 | } | |
205 | ||
206 | return REGULATOR_STATUS_OFF; | |
207 | } | |
208 | ||
209 | static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) | |
210 | { | |
211 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
212 | int grp = 0; | |
213 | int val; | |
214 | ||
215 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
216 | grp = twlreg_grp(rdev); | |
217 | ||
218 | if (grp < 0) | |
219 | return grp; | |
220 | ||
221 | /* Compose the state register settings */ | |
222 | val = grp << TWL6030_CFG_STATE_GRP_SHIFT; | |
223 | /* We can only set the mode through state machine commands... */ | |
224 | switch (mode) { | |
225 | case REGULATOR_MODE_NORMAL: | |
226 | val |= TWL6030_CFG_STATE_ON; | |
227 | break; | |
228 | case REGULATOR_MODE_STANDBY: | |
229 | val |= TWL6030_CFG_STATE_SLEEP; | |
230 | break; | |
231 | ||
232 | default: | |
233 | return -EINVAL; | |
234 | } | |
235 | ||
236 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); | |
237 | } | |
238 | ||
239 | static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, | |
240 | int max_uV, unsigned *selector) | |
241 | { | |
242 | return -ENODEV; | |
243 | } | |
244 | ||
245 | static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) | |
246 | { | |
247 | return -ENODEV; | |
248 | } | |
249 | ||
250 | static struct regulator_ops twl6030coresmps_ops = { | |
251 | .set_voltage = twl6030coresmps_set_voltage, | |
252 | .get_voltage = twl6030coresmps_get_voltage, | |
253 | }; | |
254 | ||
255 | static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel) | |
256 | { | |
257 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
258 | ||
259 | switch (sel) { | |
260 | case 0: | |
261 | return 0; | |
262 | case 1 ... 24: | |
263 | /* Linear mapping from 00000001 to 00011000: | |
264 | * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001) | |
265 | */ | |
266 | return (info->min_mV + 100 * (sel - 1)) * 1000; | |
267 | case 25 ... 30: | |
268 | return -EINVAL; | |
269 | case 31: | |
270 | return 2750000; | |
271 | default: | |
272 | return -EINVAL; | |
273 | } | |
274 | } | |
275 | ||
276 | static int | |
277 | twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) | |
278 | { | |
279 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
280 | ||
281 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, | |
282 | selector); | |
283 | } | |
284 | ||
285 | static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) | |
286 | { | |
287 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
288 | int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); | |
289 | ||
290 | return vsel; | |
291 | } | |
292 | ||
293 | static struct regulator_ops twl6030ldo_ops = { | |
294 | .list_voltage = twl6030ldo_list_voltage, | |
295 | ||
296 | .set_voltage_sel = twl6030ldo_set_voltage_sel, | |
297 | .get_voltage_sel = twl6030ldo_get_voltage_sel, | |
298 | ||
299 | .enable = twl6030reg_enable, | |
300 | .disable = twl6030reg_disable, | |
301 | .is_enabled = twl6030reg_is_enabled, | |
302 | ||
303 | .set_mode = twl6030reg_set_mode, | |
304 | ||
305 | .get_status = twl6030reg_get_status, | |
306 | }; | |
307 | ||
308 | static struct regulator_ops twl6030fixed_ops = { | |
309 | .list_voltage = regulator_list_voltage_linear, | |
310 | ||
311 | .enable = twl6030reg_enable, | |
312 | .disable = twl6030reg_disable, | |
313 | .is_enabled = twl6030reg_is_enabled, | |
314 | ||
315 | .set_mode = twl6030reg_set_mode, | |
316 | ||
317 | .get_status = twl6030reg_get_status, | |
318 | }; | |
319 | ||
320 | /* | |
321 | * SMPS status and control | |
322 | */ | |
323 | ||
324 | static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) | |
325 | { | |
326 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
327 | ||
328 | int voltage = 0; | |
329 | ||
330 | switch (info->flags) { | |
331 | case SMPS_OFFSET_EN: | |
332 | voltage = 100000; | |
333 | /* fall through */ | |
334 | case 0: | |
335 | switch (index) { | |
336 | case 0: | |
337 | voltage = 0; | |
338 | break; | |
339 | case 58: | |
340 | voltage = 1350 * 1000; | |
341 | break; | |
342 | case 59: | |
343 | voltage = 1500 * 1000; | |
344 | break; | |
345 | case 60: | |
346 | voltage = 1800 * 1000; | |
347 | break; | |
348 | case 61: | |
349 | voltage = 1900 * 1000; | |
350 | break; | |
351 | case 62: | |
352 | voltage = 2100 * 1000; | |
353 | break; | |
354 | default: | |
355 | voltage += (600000 + (12500 * (index - 1))); | |
356 | } | |
357 | break; | |
358 | case SMPS_EXTENDED_EN: | |
359 | switch (index) { | |
360 | case 0: | |
361 | voltage = 0; | |
362 | break; | |
363 | case 58: | |
364 | voltage = 2084 * 1000; | |
365 | break; | |
366 | case 59: | |
367 | voltage = 2315 * 1000; | |
368 | break; | |
369 | case 60: | |
370 | voltage = 2778 * 1000; | |
371 | break; | |
372 | case 61: | |
373 | voltage = 2932 * 1000; | |
374 | break; | |
375 | case 62: | |
376 | voltage = 3241 * 1000; | |
377 | break; | |
378 | default: | |
379 | voltage = (1852000 + (38600 * (index - 1))); | |
380 | } | |
381 | break; | |
382 | case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: | |
383 | switch (index) { | |
384 | case 0: | |
385 | voltage = 0; | |
386 | break; | |
387 | case 58: | |
388 | voltage = 4167 * 1000; | |
389 | break; | |
390 | case 59: | |
391 | voltage = 2315 * 1000; | |
392 | break; | |
393 | case 60: | |
394 | voltage = 2778 * 1000; | |
395 | break; | |
396 | case 61: | |
397 | voltage = 2932 * 1000; | |
398 | break; | |
399 | case 62: | |
400 | voltage = 3241 * 1000; | |
401 | break; | |
402 | default: | |
403 | voltage = (2161000 + (38600 * (index - 1))); | |
404 | } | |
405 | break; | |
406 | } | |
407 | ||
408 | return voltage; | |
409 | } | |
410 | ||
411 | static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, | |
412 | int max_uV) | |
413 | { | |
414 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
415 | int vsel = 0; | |
416 | ||
417 | switch (info->flags) { | |
418 | case 0: | |
419 | if (min_uV == 0) | |
420 | vsel = 0; | |
421 | else if ((min_uV >= 600000) && (min_uV <= 1300000)) { | |
422 | vsel = DIV_ROUND_UP(min_uV - 600000, 12500); | |
423 | vsel++; | |
424 | } | |
425 | /* Values 1..57 for vsel are linear and can be calculated | |
426 | * values 58..62 are non linear. | |
427 | */ | |
428 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
429 | vsel = 62; | |
430 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
431 | vsel = 61; | |
432 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) | |
433 | vsel = 60; | |
434 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
435 | vsel = 59; | |
436 | else if ((min_uV > 1300000) && (min_uV <= 1350000)) | |
437 | vsel = 58; | |
438 | else | |
439 | return -EINVAL; | |
440 | break; | |
441 | case SMPS_OFFSET_EN: | |
442 | if (min_uV == 0) | |
443 | vsel = 0; | |
444 | else if ((min_uV >= 700000) && (min_uV <= 1420000)) { | |
445 | vsel = DIV_ROUND_UP(min_uV - 700000, 12500); | |
446 | vsel++; | |
447 | } | |
448 | /* Values 1..57 for vsel are linear and can be calculated | |
449 | * values 58..62 are non linear. | |
450 | */ | |
451 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
452 | vsel = 62; | |
453 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
454 | vsel = 61; | |
b98acbff | 455 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) |
cac28ae6 NR |
456 | vsel = 60; |
457 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
458 | vsel = 59; | |
cac28ae6 NR |
459 | else |
460 | return -EINVAL; | |
461 | break; | |
462 | case SMPS_EXTENDED_EN: | |
463 | if (min_uV == 0) { | |
464 | vsel = 0; | |
465 | } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { | |
466 | vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); | |
467 | vsel++; | |
468 | } | |
469 | break; | |
470 | case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: | |
471 | if (min_uV == 0) { | |
472 | vsel = 0; | |
473 | } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { | |
474 | vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); | |
475 | vsel++; | |
476 | } | |
477 | break; | |
478 | } | |
479 | ||
480 | return vsel; | |
481 | } | |
482 | ||
483 | static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, | |
484 | unsigned int selector) | |
485 | { | |
486 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
487 | ||
488 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, | |
489 | selector); | |
490 | } | |
491 | ||
492 | static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) | |
493 | { | |
494 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
495 | ||
496 | return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); | |
497 | } | |
498 | ||
499 | static struct regulator_ops twlsmps_ops = { | |
500 | .list_voltage = twl6030smps_list_voltage, | |
501 | .map_voltage = twl6030smps_map_voltage, | |
502 | ||
503 | .set_voltage_sel = twl6030smps_set_voltage_sel, | |
504 | .get_voltage_sel = twl6030smps_get_voltage_sel, | |
505 | ||
506 | .enable = twl6030reg_enable, | |
507 | .disable = twl6030reg_disable, | |
508 | .is_enabled = twl6030reg_is_enabled, | |
509 | ||
510 | .set_mode = twl6030reg_set_mode, | |
511 | ||
512 | .get_status = twl6030reg_get_status, | |
513 | }; | |
514 | ||
515 | /*----------------------------------------------------------------------*/ | |
516 | ||
517 | #define TWL6030_ADJUSTABLE_SMPS(label) \ | |
518 | static const struct twlreg_info TWL6030_INFO_##label = { \ | |
519 | .desc = { \ | |
520 | .name = #label, \ | |
521 | .id = TWL6030_REG_##label, \ | |
522 | .ops = &twl6030coresmps_ops, \ | |
523 | .type = REGULATOR_VOLTAGE, \ | |
524 | .owner = THIS_MODULE, \ | |
525 | }, \ | |
526 | } | |
527 | ||
3498c5e1 | 528 | #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts) \ |
cac28ae6 NR |
529 | static const struct twlreg_info TWL6030_INFO_##label = { \ |
530 | .base = offset, \ | |
531 | .min_mV = min_mVolts, \ | |
cac28ae6 NR |
532 | .desc = { \ |
533 | .name = #label, \ | |
534 | .id = TWL6030_REG_##label, \ | |
535 | .n_voltages = 32, \ | |
536 | .ops = &twl6030ldo_ops, \ | |
537 | .type = REGULATOR_VOLTAGE, \ | |
538 | .owner = THIS_MODULE, \ | |
539 | }, \ | |
540 | } | |
541 | ||
3498c5e1 | 542 | #define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts) \ |
cac28ae6 NR |
543 | static const struct twlreg_info TWL6032_INFO_##label = { \ |
544 | .base = offset, \ | |
545 | .min_mV = min_mVolts, \ | |
cac28ae6 NR |
546 | .desc = { \ |
547 | .name = #label, \ | |
548 | .id = TWL6032_REG_##label, \ | |
549 | .n_voltages = 32, \ | |
550 | .ops = &twl6030ldo_ops, \ | |
551 | .type = REGULATOR_VOLTAGE, \ | |
552 | .owner = THIS_MODULE, \ | |
553 | }, \ | |
554 | } | |
555 | ||
556 | #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ | |
557 | static const struct twlreg_info TWLFIXED_INFO_##label = { \ | |
558 | .base = offset, \ | |
559 | .id = 0, \ | |
560 | .min_mV = mVolts, \ | |
cac28ae6 NR |
561 | .desc = { \ |
562 | .name = #label, \ | |
563 | .id = TWL6030##_REG_##label, \ | |
564 | .n_voltages = 1, \ | |
565 | .ops = &twl6030fixed_ops, \ | |
566 | .type = REGULATOR_VOLTAGE, \ | |
567 | .owner = THIS_MODULE, \ | |
568 | .min_uV = mVolts * 1000, \ | |
569 | .enable_time = turnon_delay, \ | |
570 | .of_map_mode = NULL, \ | |
571 | }, \ | |
572 | } | |
573 | ||
574 | #define TWL6032_ADJUSTABLE_SMPS(label, offset) \ | |
575 | static const struct twlreg_info TWLSMPS_INFO_##label = { \ | |
576 | .base = offset, \ | |
577 | .min_mV = 600, \ | |
cac28ae6 NR |
578 | .desc = { \ |
579 | .name = #label, \ | |
580 | .id = TWL6032_REG_##label, \ | |
581 | .n_voltages = 63, \ | |
582 | .ops = &twlsmps_ops, \ | |
583 | .type = REGULATOR_VOLTAGE, \ | |
584 | .owner = THIS_MODULE, \ | |
585 | }, \ | |
586 | } | |
587 | ||
588 | /* VUSBCP is managed *only* by the USB subchip */ | |
589 | /* 6030 REG with base as PMC Slave Misc : 0x0030 */ | |
590 | /* Turnon-delay and remap configuration values for 6030 are not | |
591 | verified since the specification is not public */ | |
592 | TWL6030_ADJUSTABLE_SMPS(VDD1); | |
593 | TWL6030_ADJUSTABLE_SMPS(VDD2); | |
594 | TWL6030_ADJUSTABLE_SMPS(VDD3); | |
3498c5e1 AL |
595 | TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000); |
596 | TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000); | |
597 | TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000); | |
598 | TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000); | |
599 | TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000); | |
600 | TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000); | |
cac28ae6 | 601 | /* 6025 are renamed compared to 6030 versions */ |
3498c5e1 AL |
602 | TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000); |
603 | TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000); | |
604 | TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000); | |
605 | TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000); | |
606 | TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000); | |
607 | TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000); | |
608 | TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000); | |
609 | TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000); | |
610 | TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000); | |
cac28ae6 NR |
611 | TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); |
612 | TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); | |
613 | TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); | |
614 | TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); | |
615 | TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); | |
616 | TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); | |
617 | TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); | |
618 | TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); | |
619 | TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); | |
620 | ||
621 | static u8 twl_get_smps_offset(void) | |
622 | { | |
623 | u8 value; | |
624 | ||
625 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
626 | TWL6030_SMPS_OFFSET); | |
627 | return value; | |
628 | } | |
629 | ||
630 | static u8 twl_get_smps_mult(void) | |
631 | { | |
632 | u8 value; | |
633 | ||
634 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
635 | TWL6030_SMPS_MULT); | |
636 | return value; | |
637 | } | |
638 | ||
639 | #define TWL_OF_MATCH(comp, family, label) \ | |
640 | { \ | |
641 | .compatible = comp, \ | |
642 | .data = &family##_INFO_##label, \ | |
643 | } | |
644 | ||
645 | #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) | |
646 | #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) | |
647 | #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) | |
648 | #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) | |
649 | ||
650 | static const struct of_device_id twl_of_match[] = { | |
651 | TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), | |
652 | TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), | |
653 | TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), | |
654 | TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), | |
655 | TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), | |
656 | TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), | |
657 | TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), | |
658 | TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), | |
659 | TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), | |
660 | TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), | |
661 | TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), | |
662 | TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), | |
663 | TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), | |
664 | TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), | |
665 | TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), | |
666 | TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), | |
667 | TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), | |
668 | TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), | |
669 | TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), | |
670 | TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), | |
671 | TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), | |
672 | TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), | |
673 | TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), | |
674 | TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), | |
675 | TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), | |
676 | TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), | |
677 | TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), | |
678 | {}, | |
679 | }; | |
680 | MODULE_DEVICE_TABLE(of, twl_of_match); | |
681 | ||
682 | static int twlreg_probe(struct platform_device *pdev) | |
683 | { | |
684 | int id; | |
685 | struct twlreg_info *info; | |
686 | const struct twlreg_info *template; | |
687 | struct regulator_init_data *initdata; | |
688 | struct regulation_constraints *c; | |
689 | struct regulator_dev *rdev; | |
cac28ae6 NR |
690 | struct regulator_config config = { }; |
691 | ||
7085180d | 692 | template = of_device_get_match_data(&pdev->dev); |
cac28ae6 NR |
693 | if (!template) |
694 | return -ENODEV; | |
695 | ||
696 | id = template->desc.id; | |
697 | initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, | |
698 | &template->desc); | |
699 | if (!initdata) | |
700 | return -EINVAL; | |
701 | ||
702 | info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); | |
703 | if (!info) | |
704 | return -ENOMEM; | |
705 | ||
706 | /* Constrain board-specific capabilities according to what | |
707 | * this driver and the chip itself can actually do. | |
708 | */ | |
709 | c = &initdata->constraints; | |
710 | c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; | |
711 | c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE | |
712 | | REGULATOR_CHANGE_MODE | |
713 | | REGULATOR_CHANGE_STATUS; | |
714 | ||
715 | switch (id) { | |
716 | case TWL6032_REG_SMPS3: | |
717 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) | |
718 | info->flags |= SMPS_EXTENDED_EN; | |
719 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) | |
720 | info->flags |= SMPS_OFFSET_EN; | |
721 | break; | |
722 | case TWL6032_REG_SMPS4: | |
723 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) | |
724 | info->flags |= SMPS_EXTENDED_EN; | |
725 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) | |
726 | info->flags |= SMPS_OFFSET_EN; | |
727 | break; | |
728 | case TWL6032_REG_VIO: | |
729 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) | |
730 | info->flags |= SMPS_EXTENDED_EN; | |
731 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) | |
732 | info->flags |= SMPS_OFFSET_EN; | |
733 | break; | |
734 | } | |
735 | ||
736 | config.dev = &pdev->dev; | |
737 | config.init_data = initdata; | |
738 | config.driver_data = info; | |
739 | config.of_node = pdev->dev.of_node; | |
740 | ||
741 | rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); | |
742 | if (IS_ERR(rdev)) { | |
743 | dev_err(&pdev->dev, "can't register %s, %ld\n", | |
744 | info->desc.name, PTR_ERR(rdev)); | |
745 | return PTR_ERR(rdev); | |
746 | } | |
747 | platform_set_drvdata(pdev, rdev); | |
748 | ||
749 | /* NOTE: many regulators support short-circuit IRQs (presentable | |
750 | * as REGULATOR_OVER_CURRENT notifications?) configured via: | |
751 | * - SC_CONFIG | |
752 | * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) | |
753 | * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) | |
754 | * - IT_CONFIG | |
755 | */ | |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
760 | MODULE_ALIAS("platform:twl6030_reg"); | |
761 | ||
762 | static struct platform_driver twlreg_driver = { | |
763 | .probe = twlreg_probe, | |
764 | /* NOTE: short name, to work around driver model truncation of | |
765 | * "twl_regulator.12" (and friends) to "twl_regulator.1". | |
766 | */ | |
767 | .driver = { | |
768 | .name = "twl6030_reg", | |
769 | .of_match_table = of_match_ptr(twl_of_match), | |
770 | }, | |
771 | }; | |
772 | ||
773 | static int __init twlreg_init(void) | |
774 | { | |
775 | return platform_driver_register(&twlreg_driver); | |
776 | } | |
777 | subsys_initcall(twlreg_init); | |
778 | ||
779 | static void __exit twlreg_exit(void) | |
780 | { | |
781 | platform_driver_unregister(&twlreg_driver); | |
782 | } | |
783 | module_exit(twlreg_exit) | |
784 | ||
785 | MODULE_DESCRIPTION("TWL6030 regulator driver"); | |
786 | MODULE_LICENSE("GPL"); |