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> | |
cac28ae6 NR |
16 | #include <linux/regulator/driver.h> |
17 | #include <linux/regulator/machine.h> | |
18 | #include <linux/regulator/of_regulator.h> | |
a2054256 | 19 | #include <linux/mfd/twl.h> |
cac28ae6 NR |
20 | #include <linux/delay.h> |
21 | ||
22 | struct twlreg_info { | |
23 | /* start of regulator's PM_RECEIVER control register bank */ | |
24 | u8 base; | |
25 | ||
26 | /* twl resource ID, for resource control state machine */ | |
27 | u8 id; | |
28 | ||
cac28ae6 NR |
29 | u8 flags; |
30 | ||
31 | /* used by regulator core */ | |
32 | struct regulator_desc desc; | |
33 | ||
34 | /* chip specific features */ | |
35 | unsigned long features; | |
36 | ||
37 | /* data passed from board for external get/set voltage */ | |
38 | void *data; | |
39 | }; | |
40 | ||
41 | ||
42 | /* LDO control registers ... offset is from the base of its register bank. | |
43 | * The first three registers of all power resource banks help hardware to | |
44 | * manage the various resource groups. | |
45 | */ | |
46 | /* Common offset in TWL4030/6030 */ | |
47 | #define VREG_GRP 0 | |
48 | /* TWL6030 register offsets */ | |
49 | #define VREG_TRANS 1 | |
50 | #define VREG_STATE 2 | |
51 | #define VREG_VOLTAGE 3 | |
52 | #define VREG_VOLTAGE_SMPS 4 | |
53 | /* TWL6030 Misc register offsets */ | |
54 | #define VREG_BC_ALL 1 | |
55 | #define VREG_BC_REF 2 | |
56 | #define VREG_BC_PROC 3 | |
57 | #define VREG_BC_CLK_RST 4 | |
58 | ||
d9df0187 GC |
59 | /* TWL6030 LDO register values for VREG_VOLTAGE */ |
60 | #define TWL6030_VREG_VOLTAGE_WR_S BIT(7) | |
61 | ||
cac28ae6 NR |
62 | /* TWL6030 LDO register values for CFG_STATE */ |
63 | #define TWL6030_CFG_STATE_OFF 0x00 | |
64 | #define TWL6030_CFG_STATE_ON 0x01 | |
65 | #define TWL6030_CFG_STATE_OFF2 0x02 | |
66 | #define TWL6030_CFG_STATE_SLEEP 0x03 | |
67 | #define TWL6030_CFG_STATE_GRP_SHIFT 5 | |
68 | #define TWL6030_CFG_STATE_APP_SHIFT 2 | |
31a6297b | 69 | #define TWL6030_CFG_STATE_MASK 0x03 |
cac28ae6 NR |
70 | #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) |
71 | #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ | |
72 | TWL6030_CFG_STATE_APP_SHIFT) | |
73 | ||
d9df0187 | 74 | /* Flags for SMPS Voltage reading and LDO reading*/ |
cac28ae6 NR |
75 | #define SMPS_OFFSET_EN BIT(0) |
76 | #define SMPS_EXTENDED_EN BIT(1) | |
d9df0187 | 77 | #define TWL_6030_WARM_RESET BIT(3) |
cac28ae6 NR |
78 | |
79 | /* twl6032 SMPS EPROM values */ | |
80 | #define TWL6030_SMPS_OFFSET 0xB0 | |
81 | #define TWL6030_SMPS_MULT 0xB3 | |
82 | #define SMPS_MULTOFFSET_SMPS4 BIT(0) | |
83 | #define SMPS_MULTOFFSET_VIO BIT(1) | |
84 | #define SMPS_MULTOFFSET_SMPS3 BIT(6) | |
85 | ||
86 | static inline int | |
87 | twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) | |
88 | { | |
89 | u8 value; | |
90 | int status; | |
91 | ||
92 | status = twl_i2c_read_u8(slave_subgp, | |
93 | &value, info->base + offset); | |
94 | return (status < 0) ? status : value; | |
95 | } | |
96 | ||
97 | static inline int | |
98 | twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, | |
99 | u8 value) | |
100 | { | |
101 | return twl_i2c_write_u8(slave_subgp, | |
102 | value, info->base + offset); | |
103 | } | |
104 | ||
105 | /* generic power resource operations, which work on all regulators */ | |
106 | static int twlreg_grp(struct regulator_dev *rdev) | |
107 | { | |
108 | return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, | |
109 | VREG_GRP); | |
110 | } | |
111 | ||
112 | /* | |
113 | * Enable/disable regulators by joining/leaving the P1 (processor) group. | |
114 | * We assume nobody else is updating the DEV_GRP registers. | |
115 | */ | |
116 | /* definition for 6030 family */ | |
117 | #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */ | |
118 | #define P2_GRP_6030 BIT(1) /* "peripherals" */ | |
119 | #define P1_GRP_6030 BIT(0) /* CPU/Linux */ | |
120 | ||
121 | static int twl6030reg_is_enabled(struct regulator_dev *rdev) | |
122 | { | |
123 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
124 | int grp = 0, val; | |
125 | ||
126 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { | |
127 | grp = twlreg_grp(rdev); | |
128 | if (grp < 0) | |
129 | return grp; | |
130 | grp &= P1_GRP_6030; | |
31a6297b AK |
131 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
132 | val = TWL6030_CFG_STATE_APP(val); | |
cac28ae6 | 133 | } else { |
31a6297b AK |
134 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
135 | val &= TWL6030_CFG_STATE_MASK; | |
cac28ae6 NR |
136 | grp = 1; |
137 | } | |
138 | ||
cac28ae6 NR |
139 | return grp && (val == TWL6030_CFG_STATE_ON); |
140 | } | |
141 | ||
142 | #define PB_I2C_BUSY BIT(0) | |
143 | #define PB_I2C_BWEN BIT(1) | |
144 | ||
145 | ||
146 | static int twl6030reg_enable(struct regulator_dev *rdev) | |
147 | { | |
148 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
149 | int grp = 0; | |
150 | int ret; | |
151 | ||
152 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
153 | grp = twlreg_grp(rdev); | |
154 | if (grp < 0) | |
155 | return grp; | |
156 | ||
157 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
158 | grp << TWL6030_CFG_STATE_GRP_SHIFT | | |
159 | TWL6030_CFG_STATE_ON); | |
160 | return ret; | |
161 | } | |
162 | ||
163 | static int twl6030reg_disable(struct regulator_dev *rdev) | |
164 | { | |
165 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
166 | int grp = 0; | |
167 | int ret; | |
168 | ||
169 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
170 | grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; | |
171 | ||
172 | /* For 6030, set the off state for all grps enabled */ | |
173 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, | |
174 | (grp) << TWL6030_CFG_STATE_GRP_SHIFT | | |
175 | TWL6030_CFG_STATE_OFF); | |
176 | ||
177 | return ret; | |
178 | } | |
179 | ||
180 | static int twl6030reg_get_status(struct regulator_dev *rdev) | |
181 | { | |
182 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
183 | int val; | |
184 | ||
185 | val = twlreg_grp(rdev); | |
186 | if (val < 0) | |
187 | return val; | |
188 | ||
189 | val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); | |
190 | ||
31a6297b AK |
191 | if (info->features & TWL6032_SUBCLASS) |
192 | val &= TWL6030_CFG_STATE_MASK; | |
193 | else | |
194 | val = TWL6030_CFG_STATE_APP(val); | |
195 | ||
196 | switch (val) { | |
cac28ae6 NR |
197 | case TWL6030_CFG_STATE_ON: |
198 | return REGULATOR_STATUS_NORMAL; | |
199 | ||
200 | case TWL6030_CFG_STATE_SLEEP: | |
201 | return REGULATOR_STATUS_STANDBY; | |
202 | ||
203 | case TWL6030_CFG_STATE_OFF: | |
204 | case TWL6030_CFG_STATE_OFF2: | |
205 | default: | |
206 | break; | |
207 | } | |
208 | ||
209 | return REGULATOR_STATUS_OFF; | |
210 | } | |
211 | ||
212 | static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) | |
213 | { | |
214 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
215 | int grp = 0; | |
216 | int val; | |
217 | ||
218 | if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) | |
219 | grp = twlreg_grp(rdev); | |
220 | ||
221 | if (grp < 0) | |
222 | return grp; | |
223 | ||
224 | /* Compose the state register settings */ | |
225 | val = grp << TWL6030_CFG_STATE_GRP_SHIFT; | |
226 | /* We can only set the mode through state machine commands... */ | |
227 | switch (mode) { | |
228 | case REGULATOR_MODE_NORMAL: | |
229 | val |= TWL6030_CFG_STATE_ON; | |
230 | break; | |
231 | case REGULATOR_MODE_STANDBY: | |
232 | val |= TWL6030_CFG_STATE_SLEEP; | |
233 | break; | |
234 | ||
235 | default: | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); | |
240 | } | |
241 | ||
242 | static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, | |
243 | int max_uV, unsigned *selector) | |
244 | { | |
245 | return -ENODEV; | |
246 | } | |
247 | ||
248 | static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) | |
249 | { | |
250 | return -ENODEV; | |
251 | } | |
252 | ||
606640bb | 253 | static const struct regulator_ops twl6030coresmps_ops = { |
cac28ae6 NR |
254 | .set_voltage = twl6030coresmps_set_voltage, |
255 | .get_voltage = twl6030coresmps_get_voltage, | |
256 | }; | |
257 | ||
cac28ae6 NR |
258 | static int |
259 | twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) | |
260 | { | |
261 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
262 | ||
d9df0187 GC |
263 | if (info->flags & TWL_6030_WARM_RESET) |
264 | selector |= TWL6030_VREG_VOLTAGE_WR_S; | |
265 | ||
cac28ae6 NR |
266 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, |
267 | selector); | |
268 | } | |
269 | ||
270 | static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) | |
271 | { | |
272 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
273 | int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); | |
274 | ||
d9df0187 GC |
275 | if (info->flags & TWL_6030_WARM_RESET) |
276 | vsel &= ~TWL6030_VREG_VOLTAGE_WR_S; | |
277 | ||
cac28ae6 NR |
278 | return vsel; |
279 | } | |
280 | ||
606640bb | 281 | static const struct regulator_ops twl6030ldo_ops = { |
4a43870a | 282 | .list_voltage = regulator_list_voltage_linear_range, |
cac28ae6 NR |
283 | |
284 | .set_voltage_sel = twl6030ldo_set_voltage_sel, | |
285 | .get_voltage_sel = twl6030ldo_get_voltage_sel, | |
286 | ||
287 | .enable = twl6030reg_enable, | |
288 | .disable = twl6030reg_disable, | |
289 | .is_enabled = twl6030reg_is_enabled, | |
290 | ||
291 | .set_mode = twl6030reg_set_mode, | |
292 | ||
293 | .get_status = twl6030reg_get_status, | |
294 | }; | |
295 | ||
606640bb | 296 | static const struct regulator_ops twl6030fixed_ops = { |
cac28ae6 NR |
297 | .list_voltage = regulator_list_voltage_linear, |
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 | /* | |
309 | * SMPS status and control | |
310 | */ | |
311 | ||
312 | static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) | |
313 | { | |
314 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
315 | ||
316 | int voltage = 0; | |
317 | ||
318 | switch (info->flags) { | |
319 | case SMPS_OFFSET_EN: | |
320 | voltage = 100000; | |
df561f66 | 321 | fallthrough; |
cac28ae6 NR |
322 | case 0: |
323 | switch (index) { | |
324 | case 0: | |
325 | voltage = 0; | |
326 | break; | |
327 | case 58: | |
328 | voltage = 1350 * 1000; | |
329 | break; | |
330 | case 59: | |
331 | voltage = 1500 * 1000; | |
332 | break; | |
333 | case 60: | |
334 | voltage = 1800 * 1000; | |
335 | break; | |
336 | case 61: | |
337 | voltage = 1900 * 1000; | |
338 | break; | |
339 | case 62: | |
340 | voltage = 2100 * 1000; | |
341 | break; | |
342 | default: | |
343 | voltage += (600000 + (12500 * (index - 1))); | |
344 | } | |
345 | break; | |
346 | case SMPS_EXTENDED_EN: | |
347 | switch (index) { | |
348 | case 0: | |
349 | voltage = 0; | |
350 | break; | |
351 | case 58: | |
352 | voltage = 2084 * 1000; | |
353 | break; | |
354 | case 59: | |
355 | voltage = 2315 * 1000; | |
356 | break; | |
357 | case 60: | |
358 | voltage = 2778 * 1000; | |
359 | break; | |
360 | case 61: | |
361 | voltage = 2932 * 1000; | |
362 | break; | |
363 | case 62: | |
364 | voltage = 3241 * 1000; | |
365 | break; | |
366 | default: | |
367 | voltage = (1852000 + (38600 * (index - 1))); | |
368 | } | |
369 | break; | |
370 | case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: | |
371 | switch (index) { | |
372 | case 0: | |
373 | voltage = 0; | |
374 | break; | |
375 | case 58: | |
376 | voltage = 4167 * 1000; | |
377 | break; | |
378 | case 59: | |
379 | voltage = 2315 * 1000; | |
380 | break; | |
381 | case 60: | |
382 | voltage = 2778 * 1000; | |
383 | break; | |
384 | case 61: | |
385 | voltage = 2932 * 1000; | |
386 | break; | |
387 | case 62: | |
388 | voltage = 3241 * 1000; | |
389 | break; | |
390 | default: | |
391 | voltage = (2161000 + (38600 * (index - 1))); | |
392 | } | |
393 | break; | |
394 | } | |
395 | ||
396 | return voltage; | |
397 | } | |
398 | ||
399 | static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, | |
400 | int max_uV) | |
401 | { | |
402 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
403 | int vsel = 0; | |
404 | ||
405 | switch (info->flags) { | |
406 | case 0: | |
407 | if (min_uV == 0) | |
408 | vsel = 0; | |
409 | else if ((min_uV >= 600000) && (min_uV <= 1300000)) { | |
410 | vsel = DIV_ROUND_UP(min_uV - 600000, 12500); | |
411 | vsel++; | |
412 | } | |
413 | /* Values 1..57 for vsel are linear and can be calculated | |
414 | * values 58..62 are non linear. | |
415 | */ | |
416 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
417 | vsel = 62; | |
418 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
419 | vsel = 61; | |
420 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) | |
421 | vsel = 60; | |
422 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
423 | vsel = 59; | |
424 | else if ((min_uV > 1300000) && (min_uV <= 1350000)) | |
425 | vsel = 58; | |
426 | else | |
427 | return -EINVAL; | |
428 | break; | |
429 | case SMPS_OFFSET_EN: | |
430 | if (min_uV == 0) | |
431 | vsel = 0; | |
432 | else if ((min_uV >= 700000) && (min_uV <= 1420000)) { | |
433 | vsel = DIV_ROUND_UP(min_uV - 700000, 12500); | |
434 | vsel++; | |
435 | } | |
436 | /* Values 1..57 for vsel are linear and can be calculated | |
437 | * values 58..62 are non linear. | |
438 | */ | |
439 | else if ((min_uV > 1900000) && (min_uV <= 2100000)) | |
440 | vsel = 62; | |
441 | else if ((min_uV > 1800000) && (min_uV <= 1900000)) | |
442 | vsel = 61; | |
b98acbff | 443 | else if ((min_uV > 1500000) && (min_uV <= 1800000)) |
cac28ae6 NR |
444 | vsel = 60; |
445 | else if ((min_uV > 1350000) && (min_uV <= 1500000)) | |
446 | vsel = 59; | |
cac28ae6 NR |
447 | else |
448 | return -EINVAL; | |
449 | break; | |
450 | case SMPS_EXTENDED_EN: | |
451 | if (min_uV == 0) { | |
452 | vsel = 0; | |
453 | } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { | |
454 | vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); | |
455 | vsel++; | |
456 | } | |
457 | break; | |
458 | case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: | |
459 | if (min_uV == 0) { | |
460 | vsel = 0; | |
461 | } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { | |
462 | vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); | |
463 | vsel++; | |
464 | } | |
465 | break; | |
466 | } | |
467 | ||
468 | return vsel; | |
469 | } | |
470 | ||
471 | static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, | |
472 | unsigned int selector) | |
473 | { | |
474 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
475 | ||
476 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, | |
477 | selector); | |
478 | } | |
479 | ||
480 | static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) | |
481 | { | |
482 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
483 | ||
484 | return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); | |
485 | } | |
486 | ||
606640bb | 487 | static const struct regulator_ops twlsmps_ops = { |
cac28ae6 NR |
488 | .list_voltage = twl6030smps_list_voltage, |
489 | .map_voltage = twl6030smps_map_voltage, | |
490 | ||
491 | .set_voltage_sel = twl6030smps_set_voltage_sel, | |
492 | .get_voltage_sel = twl6030smps_get_voltage_sel, | |
493 | ||
494 | .enable = twl6030reg_enable, | |
495 | .disable = twl6030reg_disable, | |
496 | .is_enabled = twl6030reg_is_enabled, | |
497 | ||
498 | .set_mode = twl6030reg_set_mode, | |
499 | ||
500 | .get_status = twl6030reg_get_status, | |
501 | }; | |
502 | ||
503 | /*----------------------------------------------------------------------*/ | |
60ab7f41 | 504 | static const struct linear_range twl6030ldo_linear_range[] = { |
4a43870a AL |
505 | REGULATOR_LINEAR_RANGE(0, 0, 0, 0), |
506 | REGULATOR_LINEAR_RANGE(1000000, 1, 24, 100000), | |
507 | REGULATOR_LINEAR_RANGE(2750000, 31, 31, 0), | |
508 | }; | |
cac28ae6 NR |
509 | |
510 | #define TWL6030_ADJUSTABLE_SMPS(label) \ | |
511 | static const struct twlreg_info TWL6030_INFO_##label = { \ | |
512 | .desc = { \ | |
513 | .name = #label, \ | |
514 | .id = TWL6030_REG_##label, \ | |
515 | .ops = &twl6030coresmps_ops, \ | |
516 | .type = REGULATOR_VOLTAGE, \ | |
517 | .owner = THIS_MODULE, \ | |
518 | }, \ | |
519 | } | |
520 | ||
4a43870a | 521 | #define TWL6030_ADJUSTABLE_LDO(label, offset) \ |
cac28ae6 NR |
522 | static const struct twlreg_info TWL6030_INFO_##label = { \ |
523 | .base = offset, \ | |
cac28ae6 NR |
524 | .desc = { \ |
525 | .name = #label, \ | |
526 | .id = TWL6030_REG_##label, \ | |
527 | .n_voltages = 32, \ | |
4a43870a AL |
528 | .linear_ranges = twl6030ldo_linear_range, \ |
529 | .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \ | |
cac28ae6 NR |
530 | .ops = &twl6030ldo_ops, \ |
531 | .type = REGULATOR_VOLTAGE, \ | |
532 | .owner = THIS_MODULE, \ | |
533 | }, \ | |
534 | } | |
535 | ||
4a43870a | 536 | #define TWL6032_ADJUSTABLE_LDO(label, offset) \ |
cac28ae6 NR |
537 | static const struct twlreg_info TWL6032_INFO_##label = { \ |
538 | .base = offset, \ | |
3d6c982b | 539 | .features = TWL6032_SUBCLASS, \ |
cac28ae6 NR |
540 | .desc = { \ |
541 | .name = #label, \ | |
542 | .id = TWL6032_REG_##label, \ | |
543 | .n_voltages = 32, \ | |
4a43870a AL |
544 | .linear_ranges = twl6030ldo_linear_range, \ |
545 | .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \ | |
cac28ae6 NR |
546 | .ops = &twl6030ldo_ops, \ |
547 | .type = REGULATOR_VOLTAGE, \ | |
548 | .owner = THIS_MODULE, \ | |
549 | }, \ | |
550 | } | |
551 | ||
552 | #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ | |
553 | static const struct twlreg_info TWLFIXED_INFO_##label = { \ | |
554 | .base = offset, \ | |
555 | .id = 0, \ | |
cac28ae6 NR |
556 | .desc = { \ |
557 | .name = #label, \ | |
558 | .id = TWL6030##_REG_##label, \ | |
559 | .n_voltages = 1, \ | |
560 | .ops = &twl6030fixed_ops, \ | |
561 | .type = REGULATOR_VOLTAGE, \ | |
562 | .owner = THIS_MODULE, \ | |
563 | .min_uV = mVolts * 1000, \ | |
564 | .enable_time = turnon_delay, \ | |
565 | .of_map_mode = NULL, \ | |
566 | }, \ | |
567 | } | |
568 | ||
569 | #define TWL6032_ADJUSTABLE_SMPS(label, offset) \ | |
570 | static const struct twlreg_info TWLSMPS_INFO_##label = { \ | |
571 | .base = offset, \ | |
3d6c982b | 572 | .features = TWL6032_SUBCLASS, \ |
cac28ae6 NR |
573 | .desc = { \ |
574 | .name = #label, \ | |
575 | .id = TWL6032_REG_##label, \ | |
576 | .n_voltages = 63, \ | |
577 | .ops = &twlsmps_ops, \ | |
578 | .type = REGULATOR_VOLTAGE, \ | |
579 | .owner = THIS_MODULE, \ | |
580 | }, \ | |
581 | } | |
582 | ||
583 | /* VUSBCP is managed *only* by the USB subchip */ | |
584 | /* 6030 REG with base as PMC Slave Misc : 0x0030 */ | |
585 | /* Turnon-delay and remap configuration values for 6030 are not | |
586 | verified since the specification is not public */ | |
587 | TWL6030_ADJUSTABLE_SMPS(VDD1); | |
588 | TWL6030_ADJUSTABLE_SMPS(VDD2); | |
589 | TWL6030_ADJUSTABLE_SMPS(VDD3); | |
4a43870a AL |
590 | TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54); |
591 | TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58); | |
592 | TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c); | |
593 | TWL6030_ADJUSTABLE_LDO(VMMC, 0x68); | |
594 | TWL6030_ADJUSTABLE_LDO(VPP, 0x6c); | |
595 | TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74); | |
cac28ae6 | 596 | /* 6025 are renamed compared to 6030 versions */ |
4a43870a AL |
597 | TWL6032_ADJUSTABLE_LDO(LDO2, 0x54); |
598 | TWL6032_ADJUSTABLE_LDO(LDO4, 0x58); | |
599 | TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c); | |
600 | TWL6032_ADJUSTABLE_LDO(LDO5, 0x68); | |
601 | TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c); | |
602 | TWL6032_ADJUSTABLE_LDO(LDO7, 0x74); | |
603 | TWL6032_ADJUSTABLE_LDO(LDO6, 0x60); | |
604 | TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64); | |
605 | TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70); | |
cac28ae6 NR |
606 | TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); |
607 | TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); | |
608 | TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); | |
609 | TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); | |
610 | TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); | |
611 | TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); | |
612 | TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); | |
613 | TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); | |
614 | TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); | |
615 | ||
616 | static u8 twl_get_smps_offset(void) | |
617 | { | |
618 | u8 value; | |
619 | ||
620 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
621 | TWL6030_SMPS_OFFSET); | |
622 | return value; | |
623 | } | |
624 | ||
625 | static u8 twl_get_smps_mult(void) | |
626 | { | |
627 | u8 value; | |
628 | ||
629 | twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, | |
630 | TWL6030_SMPS_MULT); | |
631 | return value; | |
632 | } | |
633 | ||
634 | #define TWL_OF_MATCH(comp, family, label) \ | |
635 | { \ | |
636 | .compatible = comp, \ | |
637 | .data = &family##_INFO_##label, \ | |
638 | } | |
639 | ||
640 | #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) | |
641 | #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) | |
642 | #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) | |
643 | #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) | |
644 | ||
645 | static const struct of_device_id twl_of_match[] = { | |
646 | TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), | |
647 | TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), | |
648 | TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), | |
649 | TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), | |
650 | TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), | |
651 | TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), | |
652 | TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), | |
653 | TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), | |
654 | TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), | |
655 | TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), | |
656 | TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), | |
657 | TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), | |
658 | TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), | |
659 | TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), | |
660 | TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), | |
661 | TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), | |
662 | TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), | |
663 | TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), | |
664 | TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), | |
665 | TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), | |
666 | TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), | |
667 | TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), | |
668 | TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), | |
669 | TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), | |
670 | TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), | |
671 | TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), | |
672 | TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), | |
673 | {}, | |
674 | }; | |
675 | MODULE_DEVICE_TABLE(of, twl_of_match); | |
676 | ||
677 | static int twlreg_probe(struct platform_device *pdev) | |
678 | { | |
679 | int id; | |
680 | struct twlreg_info *info; | |
681 | const struct twlreg_info *template; | |
682 | struct regulator_init_data *initdata; | |
683 | struct regulation_constraints *c; | |
684 | struct regulator_dev *rdev; | |
cac28ae6 | 685 | struct regulator_config config = { }; |
621d3ce8 | 686 | struct device_node *np = pdev->dev.of_node; |
cac28ae6 | 687 | |
7085180d | 688 | template = of_device_get_match_data(&pdev->dev); |
cac28ae6 NR |
689 | if (!template) |
690 | return -ENODEV; | |
691 | ||
692 | id = template->desc.id; | |
621d3ce8 | 693 | initdata = of_get_regulator_init_data(&pdev->dev, np, &template->desc); |
cac28ae6 NR |
694 | if (!initdata) |
695 | return -EINVAL; | |
696 | ||
697 | info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); | |
698 | if (!info) | |
699 | return -ENOMEM; | |
700 | ||
701 | /* Constrain board-specific capabilities according to what | |
702 | * this driver and the chip itself can actually do. | |
703 | */ | |
704 | c = &initdata->constraints; | |
705 | c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; | |
706 | c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE | |
707 | | REGULATOR_CHANGE_MODE | |
708 | | REGULATOR_CHANGE_STATUS; | |
709 | ||
710 | switch (id) { | |
711 | case TWL6032_REG_SMPS3: | |
712 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) | |
713 | info->flags |= SMPS_EXTENDED_EN; | |
714 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) | |
715 | info->flags |= SMPS_OFFSET_EN; | |
716 | break; | |
717 | case TWL6032_REG_SMPS4: | |
718 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) | |
719 | info->flags |= SMPS_EXTENDED_EN; | |
720 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) | |
721 | info->flags |= SMPS_OFFSET_EN; | |
722 | break; | |
723 | case TWL6032_REG_VIO: | |
724 | if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) | |
725 | info->flags |= SMPS_EXTENDED_EN; | |
726 | if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) | |
727 | info->flags |= SMPS_OFFSET_EN; | |
728 | break; | |
729 | } | |
730 | ||
5bd73a16 | 731 | if (of_property_read_bool(np, "ti,retain-on-reset")) |
d9df0187 GC |
732 | info->flags |= TWL_6030_WARM_RESET; |
733 | ||
cac28ae6 NR |
734 | config.dev = &pdev->dev; |
735 | config.init_data = initdata; | |
736 | config.driver_data = info; | |
621d3ce8 | 737 | config.of_node = np; |
cac28ae6 NR |
738 | |
739 | rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); | |
740 | if (IS_ERR(rdev)) { | |
741 | dev_err(&pdev->dev, "can't register %s, %ld\n", | |
742 | info->desc.name, PTR_ERR(rdev)); | |
743 | return PTR_ERR(rdev); | |
744 | } | |
745 | platform_set_drvdata(pdev, rdev); | |
746 | ||
747 | /* NOTE: many regulators support short-circuit IRQs (presentable | |
748 | * as REGULATOR_OVER_CURRENT notifications?) configured via: | |
749 | * - SC_CONFIG | |
750 | * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) | |
751 | * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) | |
752 | * - IT_CONFIG | |
753 | */ | |
754 | ||
755 | return 0; | |
756 | } | |
757 | ||
758 | MODULE_ALIAS("platform:twl6030_reg"); | |
759 | ||
760 | static struct platform_driver twlreg_driver = { | |
761 | .probe = twlreg_probe, | |
762 | /* NOTE: short name, to work around driver model truncation of | |
763 | * "twl_regulator.12" (and friends) to "twl_regulator.1". | |
764 | */ | |
765 | .driver = { | |
766 | .name = "twl6030_reg", | |
259b93b2 | 767 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
cac28ae6 NR |
768 | .of_match_table = of_match_ptr(twl_of_match), |
769 | }, | |
770 | }; | |
771 | ||
772 | static int __init twlreg_init(void) | |
773 | { | |
774 | return platform_driver_register(&twlreg_driver); | |
775 | } | |
776 | subsys_initcall(twlreg_init); | |
777 | ||
778 | static void __exit twlreg_exit(void) | |
779 | { | |
780 | platform_driver_unregister(&twlreg_driver); | |
781 | } | |
782 | module_exit(twlreg_exit) | |
783 | ||
784 | MODULE_DESCRIPTION("TWL6030 regulator driver"); | |
785 | MODULE_LICENSE("GPL"); |