Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
cac28ae6 NR |
2 | /* |
3 | * Split TWL6030 logic from twl-regulator.c: | |
4 | * Copyright (C) 2008 David Brownell | |
5 | * | |
6 | * Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com> | |
cac28ae6 NR |
7 | */ |
8 | ||
9 | #include <linux/module.h> | |
10 | #include <linux/string.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/err.h> | |
14 | #include <linux/platform_device.h> | |
15 | #include <linux/of.h> | |
16 | #include <linux/of_device.h> | |
17 | #include <linux/regulator/driver.h> | |
18 | #include <linux/regulator/machine.h> | |
19 | #include <linux/regulator/of_regulator.h> | |
a2054256 | 20 | #include <linux/mfd/twl.h> |
cac28ae6 NR |
21 | #include <linux/delay.h> |
22 | ||
23 | struct twlreg_info { | |
24 | /* start of regulator's PM_RECEIVER control register bank */ | |
25 | u8 base; | |
26 | ||
27 | /* twl resource ID, for resource control state machine */ | |
28 | u8 id; | |
29 | ||
cac28ae6 NR |
30 | u8 flags; |
31 | ||
32 | /* used by regulator core */ | |
33 | struct regulator_desc desc; | |
34 | ||
35 | /* chip specific features */ | |
36 | unsigned long features; | |
37 | ||
38 | /* data passed from board for external get/set voltage */ | |
39 | void *data; | |
40 | }; | |
41 | ||
42 | ||
43 | /* LDO control registers ... offset is from the base of its register bank. | |
44 | * The first three registers of all power resource banks help hardware to | |
45 | * manage the various resource groups. | |
46 | */ | |
47 | /* Common offset in TWL4030/6030 */ | |
48 | #define VREG_GRP 0 | |
49 | /* TWL6030 register offsets */ | |
50 | #define VREG_TRANS 1 | |
51 | #define VREG_STATE 2 | |
52 | #define VREG_VOLTAGE 3 | |
53 | #define VREG_VOLTAGE_SMPS 4 | |
54 | /* TWL6030 Misc register offsets */ | |
55 | #define VREG_BC_ALL 1 | |
56 | #define VREG_BC_REF 2 | |
57 | #define VREG_BC_PROC 3 | |
58 | #define VREG_BC_CLK_RST 4 | |
59 | ||
d9df0187 GC |
60 | /* TWL6030 LDO register values for VREG_VOLTAGE */ |
61 | #define TWL6030_VREG_VOLTAGE_WR_S BIT(7) | |
62 | ||
cac28ae6 NR |
63 | /* TWL6030 LDO register values for CFG_STATE */ |
64 | #define TWL6030_CFG_STATE_OFF 0x00 | |
65 | #define TWL6030_CFG_STATE_ON 0x01 | |
66 | #define TWL6030_CFG_STATE_OFF2 0x02 | |
67 | #define TWL6030_CFG_STATE_SLEEP 0x03 | |
68 | #define TWL6030_CFG_STATE_GRP_SHIFT 5 | |
69 | #define TWL6030_CFG_STATE_APP_SHIFT 2 | |
31a6297b | 70 | #define TWL6030_CFG_STATE_MASK 0x03 |
cac28ae6 NR |
71 | #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) |
72 | #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ | |
73 | TWL6030_CFG_STATE_APP_SHIFT) | |
74 | ||
d9df0187 | 75 | /* Flags for SMPS Voltage reading and LDO reading*/ |
cac28ae6 NR |
76 | #define SMPS_OFFSET_EN BIT(0) |
77 | #define SMPS_EXTENDED_EN BIT(1) | |
d9df0187 | 78 | #define TWL_6030_WARM_RESET BIT(3) |
cac28ae6 NR |
79 | |
80 | /* twl6032 SMPS EPROM values */ | |
81 | #define TWL6030_SMPS_OFFSET 0xB0 | |
82 | #define TWL6030_SMPS_MULT 0xB3 | |
83 | #define SMPS_MULTOFFSET_SMPS4 BIT(0) | |
84 | #define SMPS_MULTOFFSET_VIO BIT(1) | |
85 | #define SMPS_MULTOFFSET_SMPS3 BIT(6) | |
86 | ||
87 | static inline int | |
88 | twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) | |
89 | { | |
90 | u8 value; | |
91 | int status; | |
92 | ||
93 | status = twl_i2c_read_u8(slave_subgp, | |
94 | &value, info->base + offset); | |
95 | return (status < 0) ? status : value; | |
96 | } | |
97 | ||
98 | static inline int | |
99 | twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, | |
100 | u8 value) | |
101 | { | |
102 | return twl_i2c_write_u8(slave_subgp, | |
103 | value, info->base + offset); | |
104 | } | |
105 | ||
106 | /* generic power resource operations, which work on all regulators */ | |
107 | static int twlreg_grp(struct regulator_dev *rdev) | |
108 | { | |
109 | return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, | |
110 | VREG_GRP); | |
111 | } | |
112 | ||
113 | /* | |
114 | * Enable/disable regulators by joining/leaving the P1 (processor) group. | |
115 | * We assume nobody else is updating the DEV_GRP registers. | |
116 | */ | |
117 | /* definition for 6030 family */ | |
118 | #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */ | |
119 | #define P2_GRP_6030 BIT(1) /* "peripherals" */ | |
120 | #define P1_GRP_6030 BIT(0) /* CPU/Linux */ | |
121 | ||
122 | static int twl6030reg_is_enabled(struct regulator_dev *rdev) | |
123 | { | |
124 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
125 | int grp = 0, val; | |
126 | ||
127 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { | |
128 | grp = twlreg_grp(rdev); | |
129 | if (grp < 0) | |
130 | return grp; | |
131 | grp &= P1_GRP_6030; | |
31a6297b AK |
132 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
133 | val = TWL6030_CFG_STATE_APP(val); | |
cac28ae6 | 134 | } else { |
31a6297b AK |
135 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
136 | val &= TWL6030_CFG_STATE_MASK; | |
cac28ae6 NR |
137 | grp = 1; |
138 | } | |
139 | ||
cac28ae6 NR |
140 | return grp && (val == TWL6030_CFG_STATE_ON); |
141 | } | |
142 | ||
143 | #define PB_I2C_BUSY BIT(0) | |
144 | #define PB_I2C_BWEN BIT(1) | |
145 | ||
146 | ||
147 | static int twl6030reg_enable(struct regulator_dev *rdev) | |
148 | { | |
149 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
150 | int grp = 0; | |
151 | int ret; | |
152 | ||
153 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
154 | grp = twlreg_grp(rdev); | |
155 | if (grp < 0) | |
156 | return grp; | |
157 | ||
158 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
159 | grp << TWL6030_CFG_STATE_GRP_SHIFT | | |
160 | TWL6030_CFG_STATE_ON); | |
161 | return ret; | |
162 | } | |
163 | ||
164 | static int twl6030reg_disable(struct regulator_dev *rdev) | |
165 | { | |
166 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
167 | int grp = 0; | |
168 | int ret; | |
169 | ||
170 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
171 | grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; | |
172 | ||
173 | /* For 6030, set the off state for all grps enabled */ | |
174 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
175 | (grp) << TWL6030_CFG_STATE_GRP_SHIFT | | |
176 | TWL6030_CFG_STATE_OFF); | |
177 | ||
178 | return ret; | |
179 | } | |
180 | ||
181 | static int twl6030reg_get_status(struct regulator_dev *rdev) | |
182 | { | |
183 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
184 | int val; | |
185 | ||
186 | val = twlreg_grp(rdev); | |
187 | if (val < 0) | |
188 | return val; | |
189 | ||
190 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); | |
191 | ||
31a6297b AK |
192 | if (info->features & TWL6032_SUBCLASS) |
193 | val &= TWL6030_CFG_STATE_MASK; | |
194 | else | |
195 | val = TWL6030_CFG_STATE_APP(val); | |
196 | ||
197 | switch (val) { | |
cac28ae6 NR |
198 | case TWL6030_CFG_STATE_ON: |
199 | return REGULATOR_STATUS_NORMAL; | |
200 | ||
201 | case TWL6030_CFG_STATE_SLEEP: | |
202 | return REGULATOR_STATUS_STANDBY; | |
203 | ||
204 | case TWL6030_CFG_STATE_OFF: | |
205 | case TWL6030_CFG_STATE_OFF2: | |
206 | default: | |
207 | break; | |
208 | } | |
209 | ||
210 | return REGULATOR_STATUS_OFF; | |
211 | } | |
212 | ||
213 | static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) | |
214 | { | |
215 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
216 | int grp = 0; | |
217 | int val; | |
218 | ||
219 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
220 | grp = twlreg_grp(rdev); | |
221 | ||
222 | if (grp < 0) | |
223 | return grp; | |
224 | ||
225 | /* Compose the state register settings */ | |
226 | val = grp << TWL6030_CFG_STATE_GRP_SHIFT; | |
227 | /* We can only set the mode through state machine commands... */ | |
228 | switch (mode) { | |
229 | case REGULATOR_MODE_NORMAL: | |
230 | val |= TWL6030_CFG_STATE_ON; | |
231 | break; | |
232 | case REGULATOR_MODE_STANDBY: | |
233 | val |= TWL6030_CFG_STATE_SLEEP; | |
234 | break; | |
235 | ||
236 | default: | |
237 | return -EINVAL; | |
238 | } | |
239 | ||
240 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); | |
241 | } | |
242 | ||
243 | static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, | |
244 | int max_uV, unsigned *selector) | |
245 | { | |
246 | return -ENODEV; | |
247 | } | |
248 | ||
249 | static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) | |
250 | { | |
251 | return -ENODEV; | |
252 | } | |
253 | ||
606640bb | 254 | static const struct regulator_ops twl6030coresmps_ops = { |
cac28ae6 NR |
255 | .set_voltage = twl6030coresmps_set_voltage, |
256 | .get_voltage = twl6030coresmps_get_voltage, | |
257 | }; | |
258 | ||
cac28ae6 NR |
259 | static int |
260 | twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) | |
261 | { | |
262 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
263 | ||
d9df0187 GC |
264 | if (info->flags & TWL_6030_WARM_RESET) |
265 | selector |= TWL6030_VREG_VOLTAGE_WR_S; | |
266 | ||
cac28ae6 NR |
267 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, |
268 | selector); | |
269 | } | |
270 | ||
271 | static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) | |
272 | { | |
273 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
274 | int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); | |
275 | ||
d9df0187 GC |
276 | if (info->flags & TWL_6030_WARM_RESET) |
277 | vsel &= ~TWL6030_VREG_VOLTAGE_WR_S; | |
278 | ||
cac28ae6 NR |
279 | return vsel; |
280 | } | |
281 | ||
606640bb | 282 | static const struct regulator_ops twl6030ldo_ops = { |
4a43870a | 283 | .list_voltage = regulator_list_voltage_linear_range, |
cac28ae6 NR |
284 | |
285 | .set_voltage_sel = twl6030ldo_set_voltage_sel, | |
286 | .get_voltage_sel = twl6030ldo_get_voltage_sel, | |
287 | ||
288 | .enable = twl6030reg_enable, | |
289 | .disable = twl6030reg_disable, | |
290 | .is_enabled = twl6030reg_is_enabled, | |
291 | ||
292 | .set_mode = twl6030reg_set_mode, | |
293 | ||
294 | .get_status = twl6030reg_get_status, | |
295 | }; | |
296 | ||
606640bb | 297 | static const struct regulator_ops twl6030fixed_ops = { |
cac28ae6 NR |
298 | .list_voltage = regulator_list_voltage_linear, |
299 | ||
300 | .enable = twl6030reg_enable, | |
301 | .disable = twl6030reg_disable, | |
302 | .is_enabled = twl6030reg_is_enabled, | |
303 | ||
304 | .set_mode = twl6030reg_set_mode, | |
305 | ||
306 | .get_status = twl6030reg_get_status, | |
307 | }; | |
308 | ||
309 | /* | |
310 | * SMPS status and control | |
311 | */ | |
312 | ||
313 | static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) | |
314 | { | |
315 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
316 | ||
317 | int voltage = 0; | |
318 | ||
319 | switch (info->flags) { | |
320 | case SMPS_OFFSET_EN: | |
321 | voltage = 100000; | |
df561f66 | 322 | fallthrough; |
cac28ae6 NR |
323 | case 0: |
324 | switch (index) { | |
325 | case 0: | |
326 | voltage = 0; | |
327 | break; | |
328 | case 58: | |
329 | voltage = 1350 * 1000; | |
330 | break; | |
331 | case 59: | |
332 | voltage = 1500 * 1000; | |
333 | break; | |
334 | case 60: | |
335 | voltage = 1800 * 1000; | |
336 | break; | |
337 | case 61: | |
338 | voltage = 1900 * 1000; | |
339 | break; | |
340 | case 62: | |
341 | voltage = 2100 * 1000; | |
342 | break; | |
343 | default: | |
344 | voltage += (600000 + (12500 * (index - 1))); | |
345 | } | |
346 | break; | |
347 | case SMPS_EXTENDED_EN: | |
348 | switch (index) { | |
349 | case 0: | |
350 | voltage = 0; | |
351 | break; | |
352 | case 58: | |
353 | voltage = 2084 * 1000; | |
354 | break; | |
355 | case 59: | |
356 | voltage = 2315 * 1000; | |
357 | break; | |
358 | case 60: | |
359 | voltage = 2778 * 1000; | |
360 | break; | |
361 | case 61: | |
362 | voltage = 2932 * 1000; | |
363 | break; | |
364 | case 62: | |
365 | voltage = 3241 * 1000; | |
366 | break; | |
367 | default: | |
368 | voltage = (1852000 + (38600 * (index - 1))); | |
369 | } | |
370 | break; | |
371 | case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: | |
372 | switch (index) { | |
373 | case 0: | |
374 | voltage = 0; | |
375 | break; | |
376 | case 58: | |
377 | voltage = 4167 * 1000; | |
378 | break; | |
379 | case 59: | |
380 | voltage = 2315 * 1000; | |
381 | break; | |
382 | case 60: | |
383 | voltage = 2778 * 1000; | |
384 | break; | |
385 | case 61: | |
386 | voltage = 2932 * 1000; | |
387 | break; | |
388 | case 62: | |
389 | voltage = 3241 * 1000; | |
390 | break; | |
391 | default: | |
392 | voltage = (2161000 + (38600 * (index - 1))); | |
393 | } | |
394 | break; | |
395 | } | |
396 | ||
397 | return voltage; | |
398 | } | |
399 | ||
400 | static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, | |
401 | int max_uV) | |
402 | { | |
403 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
404 | int vsel = 0; | |
405 | ||
406 | switch (info->flags) { | |
407 | case 0: | |
408 | if (min_uV == 0) | |
409 | vsel = 0; | |
410 | else if ((min_uV >= 600000) && (min_uV <= 1300000)) { | |
411 | vsel = DIV_ROUND_UP(min_uV - 600000, 12500); | |
412 | vsel++; | |
413 | } | |
414 | /* Values 1..57 for vsel are linear and can be calculated | |
415 | * values 58..62 are non linear. | |
416 | */ | |
417 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
418 | vsel = 62; | |
419 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
420 | vsel = 61; | |
421 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) | |
422 | vsel = 60; | |
423 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
424 | vsel = 59; | |
425 | else if ((min_uV > 1300000) && (min_uV <= 1350000)) | |
426 | vsel = 58; | |
427 | else | |
428 | return -EINVAL; | |
429 | break; | |
430 | case SMPS_OFFSET_EN: | |
431 | if (min_uV == 0) | |
432 | vsel = 0; | |
433 | else if ((min_uV >= 700000) && (min_uV <= 1420000)) { | |
434 | vsel = DIV_ROUND_UP(min_uV - 700000, 12500); | |
435 | vsel++; | |
436 | } | |
437 | /* Values 1..57 for vsel are linear and can be calculated | |
438 | * values 58..62 are non linear. | |
439 | */ | |
440 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
441 | vsel = 62; | |
442 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
443 | vsel = 61; | |
b98acbff | 444 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) |
cac28ae6 NR |
445 | vsel = 60; |
446 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
447 | vsel = 59; | |
cac28ae6 NR |
448 | else |
449 | return -EINVAL; | |
450 | break; | |
451 | case SMPS_EXTENDED_EN: | |
452 | if (min_uV == 0) { | |
453 | vsel = 0; | |
454 | } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { | |
455 | vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); | |
456 | vsel++; | |
457 | } | |
458 | break; | |
459 | case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: | |
460 | if (min_uV == 0) { | |
461 | vsel = 0; | |
462 | } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { | |
463 | vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); | |
464 | vsel++; | |
465 | } | |
466 | break; | |
467 | } | |
468 | ||
469 | return vsel; | |
470 | } | |
471 | ||
472 | static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, | |
473 | unsigned int selector) | |
474 | { | |
475 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
476 | ||
477 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, | |
478 | selector); | |
479 | } | |
480 | ||
481 | static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) | |
482 | { | |
483 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
484 | ||
485 | return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); | |
486 | } | |
487 | ||
606640bb | 488 | static const struct regulator_ops twlsmps_ops = { |
cac28ae6 NR |
489 | .list_voltage = twl6030smps_list_voltage, |
490 | .map_voltage = twl6030smps_map_voltage, | |
491 | ||
492 | .set_voltage_sel = twl6030smps_set_voltage_sel, | |
493 | .get_voltage_sel = twl6030smps_get_voltage_sel, | |
494 | ||
495 | .enable = twl6030reg_enable, | |
496 | .disable = twl6030reg_disable, | |
497 | .is_enabled = twl6030reg_is_enabled, | |
498 | ||
499 | .set_mode = twl6030reg_set_mode, | |
500 | ||
501 | .get_status = twl6030reg_get_status, | |
502 | }; | |
503 | ||
504 | /*----------------------------------------------------------------------*/ | |
60ab7f41 | 505 | static const struct linear_range twl6030ldo_linear_range[] = { |
4a43870a AL |
506 | REGULATOR_LINEAR_RANGE(0, 0, 0, 0), |
507 | REGULATOR_LINEAR_RANGE(1000000, 1, 24, 100000), | |
508 | REGULATOR_LINEAR_RANGE(2750000, 31, 31, 0), | |
509 | }; | |
cac28ae6 NR |
510 | |
511 | #define TWL6030_ADJUSTABLE_SMPS(label) \ | |
512 | static const struct twlreg_info TWL6030_INFO_##label = { \ | |
513 | .desc = { \ | |
514 | .name = #label, \ | |
515 | .id = TWL6030_REG_##label, \ | |
516 | .ops = &twl6030coresmps_ops, \ | |
517 | .type = REGULATOR_VOLTAGE, \ | |
518 | .owner = THIS_MODULE, \ | |
519 | }, \ | |
520 | } | |
521 | ||
4a43870a | 522 | #define TWL6030_ADJUSTABLE_LDO(label, offset) \ |
cac28ae6 NR |
523 | static const struct twlreg_info TWL6030_INFO_##label = { \ |
524 | .base = offset, \ | |
cac28ae6 NR |
525 | .desc = { \ |
526 | .name = #label, \ | |
527 | .id = TWL6030_REG_##label, \ | |
528 | .n_voltages = 32, \ | |
4a43870a AL |
529 | .linear_ranges = twl6030ldo_linear_range, \ |
530 | .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \ | |
cac28ae6 NR |
531 | .ops = &twl6030ldo_ops, \ |
532 | .type = REGULATOR_VOLTAGE, \ | |
533 | .owner = THIS_MODULE, \ | |
534 | }, \ | |
535 | } | |
536 | ||
4a43870a | 537 | #define TWL6032_ADJUSTABLE_LDO(label, offset) \ |
cac28ae6 NR |
538 | static const struct twlreg_info TWL6032_INFO_##label = { \ |
539 | .base = offset, \ | |
3d6c982b | 540 | .features = TWL6032_SUBCLASS, \ |
cac28ae6 NR |
541 | .desc = { \ |
542 | .name = #label, \ | |
543 | .id = TWL6032_REG_##label, \ | |
544 | .n_voltages = 32, \ | |
4a43870a AL |
545 | .linear_ranges = twl6030ldo_linear_range, \ |
546 | .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \ | |
cac28ae6 NR |
547 | .ops = &twl6030ldo_ops, \ |
548 | .type = REGULATOR_VOLTAGE, \ | |
549 | .owner = THIS_MODULE, \ | |
550 | }, \ | |
551 | } | |
552 | ||
553 | #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ | |
554 | static const struct twlreg_info TWLFIXED_INFO_##label = { \ | |
555 | .base = offset, \ | |
556 | .id = 0, \ | |
cac28ae6 NR |
557 | .desc = { \ |
558 | .name = #label, \ | |
559 | .id = TWL6030##_REG_##label, \ | |
560 | .n_voltages = 1, \ | |
561 | .ops = &twl6030fixed_ops, \ | |
562 | .type = REGULATOR_VOLTAGE, \ | |
563 | .owner = THIS_MODULE, \ | |
564 | .min_uV = mVolts * 1000, \ | |
565 | .enable_time = turnon_delay, \ | |
566 | .of_map_mode = NULL, \ | |
567 | }, \ | |
568 | } | |
569 | ||
570 | #define TWL6032_ADJUSTABLE_SMPS(label, offset) \ | |
571 | static const struct twlreg_info TWLSMPS_INFO_##label = { \ | |
572 | .base = offset, \ | |
3d6c982b | 573 | .features = TWL6032_SUBCLASS, \ |
cac28ae6 NR |
574 | .desc = { \ |
575 | .name = #label, \ | |
576 | .id = TWL6032_REG_##label, \ | |
577 | .n_voltages = 63, \ | |
578 | .ops = &twlsmps_ops, \ | |
579 | .type = REGULATOR_VOLTAGE, \ | |
580 | .owner = THIS_MODULE, \ | |
581 | }, \ | |
582 | } | |
583 | ||
584 | /* VUSBCP is managed *only* by the USB subchip */ | |
585 | /* 6030 REG with base as PMC Slave Misc : 0x0030 */ | |
586 | /* Turnon-delay and remap configuration values for 6030 are not | |
587 | verified since the specification is not public */ | |
588 | TWL6030_ADJUSTABLE_SMPS(VDD1); | |
589 | TWL6030_ADJUSTABLE_SMPS(VDD2); | |
590 | TWL6030_ADJUSTABLE_SMPS(VDD3); | |
4a43870a AL |
591 | TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54); |
592 | TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58); | |
593 | TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c); | |
594 | TWL6030_ADJUSTABLE_LDO(VMMC, 0x68); | |
595 | TWL6030_ADJUSTABLE_LDO(VPP, 0x6c); | |
596 | TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74); | |
cac28ae6 | 597 | /* 6025 are renamed compared to 6030 versions */ |
4a43870a AL |
598 | TWL6032_ADJUSTABLE_LDO(LDO2, 0x54); |
599 | TWL6032_ADJUSTABLE_LDO(LDO4, 0x58); | |
600 | TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c); | |
601 | TWL6032_ADJUSTABLE_LDO(LDO5, 0x68); | |
602 | TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c); | |
603 | TWL6032_ADJUSTABLE_LDO(LDO7, 0x74); | |
604 | TWL6032_ADJUSTABLE_LDO(LDO6, 0x60); | |
605 | TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64); | |
606 | TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70); | |
cac28ae6 NR |
607 | TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); |
608 | TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); | |
609 | TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); | |
610 | TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); | |
611 | TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); | |
612 | TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); | |
613 | TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); | |
614 | TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); | |
615 | TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); | |
616 | ||
617 | static u8 twl_get_smps_offset(void) | |
618 | { | |
619 | u8 value; | |
620 | ||
621 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
622 | TWL6030_SMPS_OFFSET); | |
623 | return value; | |
624 | } | |
625 | ||
626 | static u8 twl_get_smps_mult(void) | |
627 | { | |
628 | u8 value; | |
629 | ||
630 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
631 | TWL6030_SMPS_MULT); | |
632 | return value; | |
633 | } | |
634 | ||
635 | #define TWL_OF_MATCH(comp, family, label) \ | |
636 | { \ | |
637 | .compatible = comp, \ | |
638 | .data = &family##_INFO_##label, \ | |
639 | } | |
640 | ||
641 | #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) | |
642 | #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) | |
643 | #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) | |
644 | #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) | |
645 | ||
646 | static const struct of_device_id twl_of_match[] = { | |
647 | TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), | |
648 | TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), | |
649 | TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), | |
650 | TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), | |
651 | TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), | |
652 | TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), | |
653 | TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), | |
654 | TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), | |
655 | TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), | |
656 | TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), | |
657 | TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), | |
658 | TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), | |
659 | TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), | |
660 | TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), | |
661 | TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), | |
662 | TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), | |
663 | TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), | |
664 | TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), | |
665 | TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), | |
666 | TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), | |
667 | TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), | |
668 | TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), | |
669 | TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), | |
670 | TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), | |
671 | TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), | |
672 | TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), | |
673 | TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), | |
674 | {}, | |
675 | }; | |
676 | MODULE_DEVICE_TABLE(of, twl_of_match); | |
677 | ||
678 | static int twlreg_probe(struct platform_device *pdev) | |
679 | { | |
680 | int id; | |
681 | struct twlreg_info *info; | |
682 | const struct twlreg_info *template; | |
683 | struct regulator_init_data *initdata; | |
684 | struct regulation_constraints *c; | |
685 | struct regulator_dev *rdev; | |
cac28ae6 | 686 | struct regulator_config config = { }; |
621d3ce8 | 687 | struct device_node *np = pdev->dev.of_node; |
cac28ae6 | 688 | |
7085180d | 689 | template = of_device_get_match_data(&pdev->dev); |
cac28ae6 NR |
690 | if (!template) |
691 | return -ENODEV; | |
692 | ||
693 | id = template->desc.id; | |
621d3ce8 | 694 | initdata = of_get_regulator_init_data(&pdev->dev, np, &template->desc); |
cac28ae6 NR |
695 | if (!initdata) |
696 | return -EINVAL; | |
697 | ||
698 | info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); | |
699 | if (!info) | |
700 | return -ENOMEM; | |
701 | ||
702 | /* Constrain board-specific capabilities according to what | |
703 | * this driver and the chip itself can actually do. | |
704 | */ | |
705 | c = &initdata->constraints; | |
706 | c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; | |
707 | c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE | |
708 | | REGULATOR_CHANGE_MODE | |
709 | | REGULATOR_CHANGE_STATUS; | |
710 | ||
711 | switch (id) { | |
712 | case TWL6032_REG_SMPS3: | |
713 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) | |
714 | info->flags |= SMPS_EXTENDED_EN; | |
715 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) | |
716 | info->flags |= SMPS_OFFSET_EN; | |
717 | break; | |
718 | case TWL6032_REG_SMPS4: | |
719 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) | |
720 | info->flags |= SMPS_EXTENDED_EN; | |
721 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) | |
722 | info->flags |= SMPS_OFFSET_EN; | |
723 | break; | |
724 | case TWL6032_REG_VIO: | |
725 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) | |
726 | info->flags |= SMPS_EXTENDED_EN; | |
727 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) | |
728 | info->flags |= SMPS_OFFSET_EN; | |
729 | break; | |
730 | } | |
731 | ||
5bd73a16 | 732 | if (of_property_read_bool(np, "ti,retain-on-reset")) |
d9df0187 GC |
733 | info->flags |= TWL_6030_WARM_RESET; |
734 | ||
cac28ae6 NR |
735 | config.dev = &pdev->dev; |
736 | config.init_data = initdata; | |
737 | config.driver_data = info; | |
621d3ce8 | 738 | config.of_node = np; |
cac28ae6 NR |
739 | |
740 | rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); | |
741 | if (IS_ERR(rdev)) { | |
742 | dev_err(&pdev->dev, "can't register %s, %ld\n", | |
743 | info->desc.name, PTR_ERR(rdev)); | |
744 | return PTR_ERR(rdev); | |
745 | } | |
746 | platform_set_drvdata(pdev, rdev); | |
747 | ||
748 | /* NOTE: many regulators support short-circuit IRQs (presentable | |
749 | * as REGULATOR_OVER_CURRENT notifications?) configured via: | |
750 | * - SC_CONFIG | |
751 | * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) | |
752 | * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) | |
753 | * - IT_CONFIG | |
754 | */ | |
755 | ||
756 | return 0; | |
757 | } | |
758 | ||
759 | MODULE_ALIAS("platform:twl6030_reg"); | |
760 | ||
761 | static struct platform_driver twlreg_driver = { | |
762 | .probe = twlreg_probe, | |
763 | /* NOTE: short name, to work around driver model truncation of | |
764 | * "twl_regulator.12" (and friends) to "twl_regulator.1". | |
765 | */ | |
766 | .driver = { | |
767 | .name = "twl6030_reg", | |
259b93b2 | 768 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
cac28ae6 NR |
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"); |