Commit | Line | Data |
---|---|---|
fa16a5c1 | 1 | /* |
c4aa6f31 | 2 | * twl-regulator.c -- support regulators in twl4030/twl6030 family chips |
fa16a5c1 DB |
3 | * |
4 | * Copyright (C) 2008 David Brownell | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
8f52a580 SR |
13 | #include <linux/string.h> |
14 | #include <linux/slab.h> | |
fa16a5c1 DB |
15 | #include <linux/init.h> |
16 | #include <linux/err.h> | |
17 | #include <linux/platform_device.h> | |
2098e95c RN |
18 | #include <linux/of.h> |
19 | #include <linux/of_device.h> | |
fa16a5c1 DB |
20 | #include <linux/regulator/driver.h> |
21 | #include <linux/regulator/machine.h> | |
2098e95c | 22 | #include <linux/regulator/of_regulator.h> |
b07682b6 | 23 | #include <linux/i2c/twl.h> |
2330b05c | 24 | #include <linux/delay.h> |
fa16a5c1 DB |
25 | |
26 | /* | |
cac28ae6 | 27 | * The TWL4030/TW5030/TPS659x0 family chips include power management, a |
fa16a5c1 DB |
28 | * USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions |
29 | * include an audio codec, battery charger, and more voltage regulators. | |
30 | * These chips are often used in OMAP-based systems. | |
31 | * | |
32 | * This driver implements software-based resource control for various | |
33 | * voltage regulators. This is usually augmented with state machine | |
34 | * based control. | |
35 | */ | |
36 | ||
37 | struct twlreg_info { | |
38 | /* start of regulator's PM_RECEIVER control register bank */ | |
39 | u8 base; | |
40 | ||
c4aa6f31 | 41 | /* twl resource ID, for resource control state machine */ |
fa16a5c1 DB |
42 | u8 id; |
43 | ||
44 | /* voltage in mV = table[VSEL]; table_len must be a power-of-two */ | |
45 | u8 table_len; | |
46 | const u16 *table; | |
47 | ||
045f972f JKS |
48 | /* State REMAP default configuration */ |
49 | u8 remap; | |
50 | ||
fa16a5c1 DB |
51 | /* used by regulator core */ |
52 | struct regulator_desc desc; | |
4d94aee5 GG |
53 | |
54 | /* chip specific features */ | |
3db39885 | 55 | unsigned long features; |
63bfff4e | 56 | |
63bfff4e TK |
57 | /* data passed from board for external get/set voltage */ |
58 | void *data; | |
fa16a5c1 DB |
59 | }; |
60 | ||
61 | ||
62 | /* LDO control registers ... offset is from the base of its register bank. | |
63 | * The first three registers of all power resource banks help hardware to | |
64 | * manage the various resource groups. | |
65 | */ | |
441a4505 | 66 | /* Common offset in TWL4030/6030 */ |
fa16a5c1 | 67 | #define VREG_GRP 0 |
441a4505 | 68 | /* TWL4030 register offsets */ |
fa16a5c1 DB |
69 | #define VREG_TYPE 1 |
70 | #define VREG_REMAP 2 | |
71 | #define VREG_DEDICATED 3 /* LDO control */ | |
ba305e31 | 72 | #define VREG_VOLTAGE_SMPS_4030 9 |
441a4505 RN |
73 | /* TWL6030 register offsets */ |
74 | #define VREG_TRANS 1 | |
75 | #define VREG_STATE 2 | |
76 | #define VREG_VOLTAGE 3 | |
4d94aee5 | 77 | #define VREG_VOLTAGE_SMPS 4 |
4d94aee5 | 78 | |
fa16a5c1 | 79 | static inline int |
441a4505 | 80 | twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) |
fa16a5c1 DB |
81 | { |
82 | u8 value; | |
83 | int status; | |
84 | ||
441a4505 | 85 | status = twl_i2c_read_u8(slave_subgp, |
fa16a5c1 DB |
86 | &value, info->base + offset); |
87 | return (status < 0) ? status : value; | |
88 | } | |
89 | ||
90 | static inline int | |
441a4505 RN |
91 | twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, |
92 | u8 value) | |
fa16a5c1 | 93 | { |
441a4505 | 94 | return twl_i2c_write_u8(slave_subgp, |
fa16a5c1 DB |
95 | value, info->base + offset); |
96 | } | |
97 | ||
98 | /*----------------------------------------------------------------------*/ | |
99 | ||
100 | /* generic power resource operations, which work on all regulators */ | |
101 | ||
c4aa6f31 | 102 | static int twlreg_grp(struct regulator_dev *rdev) |
fa16a5c1 | 103 | { |
441a4505 RN |
104 | return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, |
105 | VREG_GRP); | |
fa16a5c1 DB |
106 | } |
107 | ||
108 | /* | |
109 | * Enable/disable regulators by joining/leaving the P1 (processor) group. | |
110 | * We assume nobody else is updating the DEV_GRP registers. | |
111 | */ | |
441a4505 RN |
112 | /* definition for 4030 family */ |
113 | #define P3_GRP_4030 BIT(7) /* "peripherals" */ | |
114 | #define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */ | |
115 | #define P1_GRP_4030 BIT(5) /* CPU/Linux */ | |
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 */ | |
fa16a5c1 | 120 | |
b2456779 | 121 | static int twl4030reg_is_enabled(struct regulator_dev *rdev) |
fa16a5c1 | 122 | { |
c4aa6f31 | 123 | int state = twlreg_grp(rdev); |
fa16a5c1 DB |
124 | |
125 | if (state < 0) | |
126 | return state; | |
127 | ||
b2456779 SH |
128 | return state & P1_GRP_4030; |
129 | } | |
130 | ||
2330b05c ID |
131 | #define PB_I2C_BUSY BIT(0) |
132 | #define PB_I2C_BWEN BIT(1) | |
133 | ||
134 | /* Wait until buffer empty/ready to send a word on power bus. */ | |
135 | static int twl4030_wait_pb_ready(void) | |
136 | { | |
137 | ||
138 | int ret; | |
139 | int timeout = 10; | |
140 | u8 val; | |
141 | ||
142 | do { | |
143 | ret = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, | |
144 | TWL4030_PM_MASTER_PB_CFG); | |
145 | if (ret < 0) | |
146 | return ret; | |
147 | ||
148 | if (!(val & PB_I2C_BUSY)) | |
149 | return 0; | |
150 | ||
151 | mdelay(1); | |
152 | timeout--; | |
153 | } while (timeout); | |
154 | ||
155 | return -ETIMEDOUT; | |
156 | } | |
157 | ||
158 | /* Send a word over the powerbus */ | |
159 | static int twl4030_send_pb_msg(unsigned msg) | |
160 | { | |
161 | u8 val; | |
162 | int ret; | |
163 | ||
164 | /* save powerbus configuration */ | |
165 | ret = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, | |
166 | TWL4030_PM_MASTER_PB_CFG); | |
167 | if (ret < 0) | |
168 | return ret; | |
169 | ||
170 | /* Enable i2c access to powerbus */ | |
171 | ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val | PB_I2C_BWEN, | |
172 | TWL4030_PM_MASTER_PB_CFG); | |
173 | if (ret < 0) | |
174 | return ret; | |
175 | ||
176 | ret = twl4030_wait_pb_ready(); | |
177 | if (ret < 0) | |
178 | return ret; | |
179 | ||
180 | ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, msg >> 8, | |
181 | TWL4030_PM_MASTER_PB_WORD_MSB); | |
182 | if (ret < 0) | |
183 | return ret; | |
184 | ||
185 | ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, msg & 0xff, | |
186 | TWL4030_PM_MASTER_PB_WORD_LSB); | |
187 | if (ret < 0) | |
188 | return ret; | |
189 | ||
190 | ret = twl4030_wait_pb_ready(); | |
191 | if (ret < 0) | |
192 | return ret; | |
193 | ||
194 | /* Restore powerbus configuration */ | |
195 | return twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val, | |
74d8b45f | 196 | TWL4030_PM_MASTER_PB_CFG); |
2330b05c ID |
197 | } |
198 | ||
f8c2940b | 199 | static int twl4030reg_enable(struct regulator_dev *rdev) |
fa16a5c1 DB |
200 | { |
201 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
202 | int grp; | |
53b8a9d9 | 203 | int ret; |
fa16a5c1 | 204 | |
b6f476c2 | 205 | grp = twlreg_grp(rdev); |
fa16a5c1 DB |
206 | if (grp < 0) |
207 | return grp; | |
208 | ||
f8c2940b | 209 | grp |= P1_GRP_4030; |
441a4505 | 210 | |
53b8a9d9 JKS |
211 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp); |
212 | ||
f8c2940b B |
213 | return ret; |
214 | } | |
215 | ||
0ff3897d | 216 | static int twl4030reg_disable(struct regulator_dev *rdev) |
fa16a5c1 DB |
217 | { |
218 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
219 | int grp; | |
21657ebf | 220 | int ret; |
fa16a5c1 | 221 | |
b6f476c2 | 222 | grp = twlreg_grp(rdev); |
fa16a5c1 DB |
223 | if (grp < 0) |
224 | return grp; | |
225 | ||
0ff3897d | 226 | grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030); |
441a4505 | 227 | |
21657ebf SH |
228 | ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp); |
229 | ||
0ff3897d B |
230 | return ret; |
231 | } | |
232 | ||
9a0244ad | 233 | static int twl4030reg_get_status(struct regulator_dev *rdev) |
fa16a5c1 | 234 | { |
c4aa6f31 | 235 | int state = twlreg_grp(rdev); |
fa16a5c1 DB |
236 | |
237 | if (state < 0) | |
238 | return state; | |
239 | state &= 0x0f; | |
240 | ||
241 | /* assume state != WARM_RESET; we'd not be running... */ | |
242 | if (!state) | |
243 | return REGULATOR_STATUS_OFF; | |
244 | return (state & BIT(3)) | |
245 | ? REGULATOR_STATUS_NORMAL | |
246 | : REGULATOR_STATUS_STANDBY; | |
247 | } | |
248 | ||
1a39962f | 249 | static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode) |
fa16a5c1 DB |
250 | { |
251 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
252 | unsigned message; | |
fa16a5c1 DB |
253 | |
254 | /* We can only set the mode through state machine commands... */ | |
255 | switch (mode) { | |
256 | case REGULATOR_MODE_NORMAL: | |
257 | message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE); | |
258 | break; | |
259 | case REGULATOR_MODE_STANDBY: | |
260 | message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP); | |
261 | break; | |
262 | default: | |
263 | return -EINVAL; | |
264 | } | |
265 | ||
2330b05c | 266 | return twl4030_send_pb_msg(message); |
fa16a5c1 DB |
267 | } |
268 | ||
a221f95e ID |
269 | static inline unsigned int twl4030reg_map_mode(unsigned int mode) |
270 | { | |
271 | switch (mode) { | |
272 | case RES_STATE_ACTIVE: | |
273 | return REGULATOR_MODE_NORMAL; | |
274 | case RES_STATE_SLEEP: | |
275 | return REGULATOR_MODE_STANDBY; | |
276 | default: | |
277 | return -EINVAL; | |
278 | } | |
279 | } | |
280 | ||
fa16a5c1 DB |
281 | /*----------------------------------------------------------------------*/ |
282 | ||
283 | /* | |
284 | * Support for adjustable-voltage LDOs uses a four bit (or less) voltage | |
285 | * select field in its control register. We use tables indexed by VSEL | |
286 | * to record voltages in milliVolts. (Accuracy is about three percent.) | |
287 | * | |
288 | * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon; | |
289 | * currently handled by listing two slightly different VAUX2 regulators, | |
290 | * only one of which will be configured. | |
291 | * | |
292 | * VSEL values documented as "TI cannot support these values" are flagged | |
293 | * in these tables as UNSUP() values; we normally won't assign them. | |
d6bb69cf AH |
294 | * |
295 | * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported. | |
296 | * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting. | |
fa16a5c1 | 297 | */ |
fa16a5c1 | 298 | #define UNSUP_MASK 0x8000 |
fa16a5c1 DB |
299 | |
300 | #define UNSUP(x) (UNSUP_MASK | (x)) | |
411a2df5 N |
301 | #define IS_UNSUP(info, x) \ |
302 | ((UNSUP_MASK & (x)) && \ | |
303 | !((info)->features & TWL4030_ALLOW_UNSUPPORTED)) | |
fa16a5c1 DB |
304 | #define LDO_MV(x) (~UNSUP_MASK & (x)) |
305 | ||
306 | ||
307 | static const u16 VAUX1_VSEL_table[] = { | |
308 | UNSUP(1500), UNSUP(1800), 2500, 2800, | |
309 | 3000, 3000, 3000, 3000, | |
310 | }; | |
311 | static const u16 VAUX2_4030_VSEL_table[] = { | |
312 | UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300, | |
313 | 1500, 1800, UNSUP(1850), 2500, | |
314 | UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000), | |
315 | UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150), | |
316 | }; | |
317 | static const u16 VAUX2_VSEL_table[] = { | |
318 | 1700, 1700, 1900, 1300, | |
319 | 1500, 1800, 2000, 2500, | |
320 | 2100, 2800, 2200, 2300, | |
321 | 2400, 2400, 2400, 2400, | |
322 | }; | |
323 | static const u16 VAUX3_VSEL_table[] = { | |
324 | 1500, 1800, 2500, 2800, | |
d6bb69cf | 325 | 3000, 3000, 3000, 3000, |
fa16a5c1 DB |
326 | }; |
327 | static const u16 VAUX4_VSEL_table[] = { | |
328 | 700, 1000, 1200, UNSUP(1300), | |
329 | 1500, 1800, UNSUP(1850), 2500, | |
1897e742 DB |
330 | UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000), |
331 | UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150), | |
fa16a5c1 DB |
332 | }; |
333 | static const u16 VMMC1_VSEL_table[] = { | |
334 | 1850, 2850, 3000, 3150, | |
335 | }; | |
336 | static const u16 VMMC2_VSEL_table[] = { | |
337 | UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300), | |
338 | UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500), | |
339 | 2600, 2800, 2850, 3000, | |
340 | 3150, 3150, 3150, 3150, | |
341 | }; | |
342 | static const u16 VPLL1_VSEL_table[] = { | |
343 | 1000, 1200, 1300, 1800, | |
344 | UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000), | |
345 | }; | |
346 | static const u16 VPLL2_VSEL_table[] = { | |
347 | 700, 1000, 1200, 1300, | |
348 | UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500), | |
349 | UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000), | |
350 | UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150), | |
351 | }; | |
352 | static const u16 VSIM_VSEL_table[] = { | |
353 | UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800, | |
354 | 2800, 3000, 3000, 3000, | |
355 | }; | |
356 | static const u16 VDAC_VSEL_table[] = { | |
357 | 1200, 1300, 1800, 1800, | |
358 | }; | |
07fc493f JKS |
359 | static const u16 VIO_VSEL_table[] = { |
360 | 1800, 1850, | |
361 | }; | |
362 | static const u16 VINTANA2_VSEL_table[] = { | |
363 | 2500, 2750, | |
364 | }; | |
fa16a5c1 | 365 | |
3e3d3be7 | 366 | static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index) |
66b659e6 DB |
367 | { |
368 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
369 | int mV = info->table[index]; | |
370 | ||
411a2df5 | 371 | return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000); |
66b659e6 DB |
372 | } |
373 | ||
fa16a5c1 | 374 | static int |
dd16b1f8 | 375 | twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) |
fa16a5c1 DB |
376 | { |
377 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
fa16a5c1 | 378 | |
dd16b1f8 AL |
379 | return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, |
380 | selector); | |
fa16a5c1 DB |
381 | } |
382 | ||
6949fbe5 | 383 | static int twl4030ldo_get_voltage_sel(struct regulator_dev *rdev) |
fa16a5c1 DB |
384 | { |
385 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
6949fbe5 | 386 | int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); |
fa16a5c1 DB |
387 | |
388 | if (vsel < 0) | |
389 | return vsel; | |
390 | ||
391 | vsel &= info->table_len - 1; | |
6949fbe5 | 392 | return vsel; |
fa16a5c1 DB |
393 | } |
394 | ||
3e3d3be7 RN |
395 | static struct regulator_ops twl4030ldo_ops = { |
396 | .list_voltage = twl4030ldo_list_voltage, | |
66b659e6 | 397 | |
dd16b1f8 | 398 | .set_voltage_sel = twl4030ldo_set_voltage_sel, |
6949fbe5 | 399 | .get_voltage_sel = twl4030ldo_get_voltage_sel, |
3e3d3be7 | 400 | |
f8c2940b | 401 | .enable = twl4030reg_enable, |
0ff3897d | 402 | .disable = twl4030reg_disable, |
b2456779 | 403 | .is_enabled = twl4030reg_is_enabled, |
3e3d3be7 | 404 | |
1a39962f | 405 | .set_mode = twl4030reg_set_mode, |
3e3d3be7 | 406 | |
9a0244ad | 407 | .get_status = twl4030reg_get_status, |
3e3d3be7 RN |
408 | }; |
409 | ||
ba305e31 TK |
410 | static int |
411 | twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, | |
412 | unsigned *selector) | |
413 | { | |
414 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
415 | int vsel = DIV_ROUND_UP(min_uV - 600000, 12500); | |
416 | ||
8313a4fb | 417 | twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS_4030, vsel); |
63bfff4e | 418 | |
ba305e31 TK |
419 | return 0; |
420 | } | |
421 | ||
422 | static int twl4030smps_get_voltage(struct regulator_dev *rdev) | |
423 | { | |
424 | struct twlreg_info *info = rdev_get_drvdata(rdev); | |
63bfff4e TK |
425 | int vsel; |
426 | ||
63bfff4e | 427 | vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, |
ba305e31 TK |
428 | VREG_VOLTAGE_SMPS_4030); |
429 | ||
430 | return vsel * 12500 + 600000; | |
431 | } | |
432 | ||
433 | static struct regulator_ops twl4030smps_ops = { | |
434 | .set_voltage = twl4030smps_set_voltage, | |
435 | .get_voltage = twl4030smps_get_voltage, | |
436 | }; | |
437 | ||
fa16a5c1 DB |
438 | /*----------------------------------------------------------------------*/ |
439 | ||
b2456779 | 440 | static struct regulator_ops twl4030fixed_ops = { |
b3816d50 | 441 | .list_voltage = regulator_list_voltage_linear, |
b2456779 | 442 | |
f8c2940b | 443 | .enable = twl4030reg_enable, |
0ff3897d | 444 | .disable = twl4030reg_disable, |
b2456779 SH |
445 | .is_enabled = twl4030reg_is_enabled, |
446 | ||
1a39962f | 447 | .set_mode = twl4030reg_set_mode, |
b2456779 | 448 | |
9a0244ad | 449 | .get_status = twl4030reg_get_status, |
b2456779 SH |
450 | }; |
451 | ||
fa16a5c1 DB |
452 | /*----------------------------------------------------------------------*/ |
453 | ||
2098e95c | 454 | #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \ |
0ffff5a6 | 455 | static const struct twlreg_info TWL4030_INFO_##label = { \ |
fa16a5c1 DB |
456 | .base = offset, \ |
457 | .id = num, \ | |
458 | .table_len = ARRAY_SIZE(label##_VSEL_table), \ | |
459 | .table = label##_VSEL_table, \ | |
045f972f | 460 | .remap = remap_conf, \ |
fa16a5c1 DB |
461 | .desc = { \ |
462 | .name = #label, \ | |
3e3d3be7 | 463 | .id = TWL4030_REG_##label, \ |
66b659e6 | 464 | .n_voltages = ARRAY_SIZE(label##_VSEL_table), \ |
3e3d3be7 RN |
465 | .ops = &twl4030ldo_ops, \ |
466 | .type = REGULATOR_VOLTAGE, \ | |
467 | .owner = THIS_MODULE, \ | |
fca53d86 | 468 | .enable_time = turnon_delay, \ |
a221f95e | 469 | .of_map_mode = twl4030reg_map_mode, \ |
3e3d3be7 RN |
470 | }, \ |
471 | } | |
472 | ||
ba305e31 | 473 | #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \ |
0ffff5a6 | 474 | static const struct twlreg_info TWL4030_INFO_##label = { \ |
ba305e31 TK |
475 | .base = offset, \ |
476 | .id = num, \ | |
ba305e31 TK |
477 | .remap = remap_conf, \ |
478 | .desc = { \ | |
479 | .name = #label, \ | |
480 | .id = TWL4030_REG_##label, \ | |
481 | .ops = &twl4030smps_ops, \ | |
482 | .type = REGULATOR_VOLTAGE, \ | |
483 | .owner = THIS_MODULE, \ | |
fca53d86 | 484 | .enable_time = turnon_delay, \ |
a221f95e | 485 | .of_map_mode = twl4030reg_map_mode, \ |
ba305e31 TK |
486 | }, \ |
487 | } | |
488 | ||
dab780a3 NR |
489 | #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \ |
490 | remap_conf) \ | |
0ffff5a6 | 491 | static const struct twlreg_info TWLFIXED_INFO_##label = { \ |
fa16a5c1 DB |
492 | .base = offset, \ |
493 | .id = num, \ | |
045f972f | 494 | .remap = remap_conf, \ |
fa16a5c1 DB |
495 | .desc = { \ |
496 | .name = #label, \ | |
dab780a3 | 497 | .id = TWL4030##_REG_##label, \ |
66b659e6 | 498 | .n_voltages = 1, \ |
dab780a3 | 499 | .ops = &twl4030fixed_ops, \ |
fa16a5c1 DB |
500 | .type = REGULATOR_VOLTAGE, \ |
501 | .owner = THIS_MODULE, \ | |
b3816d50 | 502 | .min_uV = mVolts * 1000, \ |
fca53d86 | 503 | .enable_time = turnon_delay, \ |
dab780a3 | 504 | .of_map_mode = twl4030reg_map_mode, \ |
8e6de4a3 B |
505 | }, \ |
506 | } | |
507 | ||
fa16a5c1 DB |
508 | /* |
509 | * We list regulators here if systems need some level of | |
510 | * software control over them after boot. | |
511 | */ | |
2098e95c RN |
512 | TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08); |
513 | TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08); | |
514 | TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08); | |
515 | TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08); | |
516 | TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08); | |
517 | TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08); | |
518 | TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08); | |
519 | TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00); | |
520 | TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08); | |
521 | TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00); | |
522 | TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08); | |
523 | TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08); | |
524 | TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08); | |
525 | TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08); | |
526 | TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08); | |
527 | /* VUSBCP is managed *only* by the USB subchip */ | |
908d6d52 | 528 | TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08); |
2098e95c RN |
529 | TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08); |
530 | TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08); | |
531 | TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08); | |
532 | TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08); | |
4d94aee5 | 533 | |
2098e95c RN |
534 | #define TWL_OF_MATCH(comp, family, label) \ |
535 | { \ | |
536 | .compatible = comp, \ | |
537 | .data = &family##_INFO_##label, \ | |
538 | } | |
539 | ||
540 | #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label) | |
541 | #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) | |
89ce43fb | 542 | #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) |
2098e95c | 543 | #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) |
2098e95c RN |
544 | #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) |
545 | ||
3d68dfe3 | 546 | static const struct of_device_id twl_of_match[] = { |
2098e95c RN |
547 | TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1), |
548 | TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030), | |
549 | TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2), | |
550 | TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3), | |
551 | TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4), | |
552 | TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1), | |
553 | TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2), | |
554 | TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1), | |
555 | TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2), | |
556 | TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM), | |
557 | TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC), | |
558 | TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2), | |
559 | TWL4030_OF_MATCH("ti,twl4030-vio", VIO), | |
560 | TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1), | |
561 | TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2), | |
908d6d52 | 562 | TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1), |
2098e95c RN |
563 | TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG), |
564 | TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5), | |
565 | TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8), | |
566 | TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1), | |
2098e95c RN |
567 | {}, |
568 | }; | |
569 | MODULE_DEVICE_TABLE(of, twl_of_match); | |
570 | ||
a5023574 | 571 | static int twlreg_probe(struct platform_device *pdev) |
fa16a5c1 | 572 | { |
8313a4fb | 573 | int id; |
fa16a5c1 | 574 | struct twlreg_info *info; |
0ffff5a6 | 575 | const struct twlreg_info *template; |
fa16a5c1 DB |
576 | struct regulator_init_data *initdata; |
577 | struct regulation_constraints *c; | |
578 | struct regulator_dev *rdev; | |
2098e95c | 579 | const struct of_device_id *match; |
c172708d | 580 | struct regulator_config config = { }; |
2098e95c RN |
581 | |
582 | match = of_match_device(twl_of_match, &pdev->dev); | |
25d82337 NR |
583 | if (!match) |
584 | return -ENODEV; | |
2098e95c | 585 | |
25d82337 | 586 | template = match->data; |
0ffff5a6 | 587 | if (!template) |
fa16a5c1 DB |
588 | return -ENODEV; |
589 | ||
25d82337 NR |
590 | id = template->desc.id; |
591 | initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, | |
592 | &template->desc); | |
fa16a5c1 DB |
593 | if (!initdata) |
594 | return -EINVAL; | |
595 | ||
cd01e32d | 596 | info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); |
0ffff5a6 AB |
597 | if (!info) |
598 | return -ENOMEM; | |
599 | ||
fa16a5c1 DB |
600 | /* Constrain board-specific capabilities according to what |
601 | * this driver and the chip itself can actually do. | |
602 | */ | |
603 | c = &initdata->constraints; | |
fa16a5c1 DB |
604 | c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; |
605 | c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE | |
606 | | REGULATOR_CHANGE_MODE | |
607 | | REGULATOR_CHANGE_STATUS; | |
2098e95c | 608 | switch (id) { |
205e5cd3 JKS |
609 | case TWL4030_REG_VIO: |
610 | case TWL4030_REG_VDD1: | |
611 | case TWL4030_REG_VDD2: | |
612 | case TWL4030_REG_VPLL1: | |
613 | case TWL4030_REG_VINTANA1: | |
614 | case TWL4030_REG_VINTANA2: | |
615 | case TWL4030_REG_VINTDIG: | |
616 | c->always_on = true; | |
617 | break; | |
618 | default: | |
619 | break; | |
620 | } | |
fa16a5c1 | 621 | |
c172708d MB |
622 | config.dev = &pdev->dev; |
623 | config.init_data = initdata; | |
624 | config.driver_data = info; | |
625 | config.of_node = pdev->dev.of_node; | |
626 | ||
00ce070e | 627 | rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); |
fa16a5c1 DB |
628 | if (IS_ERR(rdev)) { |
629 | dev_err(&pdev->dev, "can't register %s, %ld\n", | |
630 | info->desc.name, PTR_ERR(rdev)); | |
631 | return PTR_ERR(rdev); | |
632 | } | |
633 | platform_set_drvdata(pdev, rdev); | |
634 | ||
cac28ae6 | 635 | twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap); |
30010fa5 | 636 | |
fa16a5c1 DB |
637 | /* NOTE: many regulators support short-circuit IRQs (presentable |
638 | * as REGULATOR_OVER_CURRENT notifications?) configured via: | |
639 | * - SC_CONFIG | |
640 | * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) | |
641 | * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) | |
642 | * - IT_CONFIG | |
643 | */ | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
cac28ae6 | 648 | MODULE_ALIAS("platform:twl4030_reg"); |
fa16a5c1 | 649 | |
c4aa6f31 RN |
650 | static struct platform_driver twlreg_driver = { |
651 | .probe = twlreg_probe, | |
fa16a5c1 | 652 | /* NOTE: short name, to work around driver model truncation of |
c4aa6f31 | 653 | * "twl_regulator.12" (and friends) to "twl_regulator.1". |
fa16a5c1 | 654 | */ |
2098e95c | 655 | .driver = { |
cac28ae6 | 656 | .name = "twl4030_reg", |
2098e95c RN |
657 | .of_match_table = of_match_ptr(twl_of_match), |
658 | }, | |
fa16a5c1 DB |
659 | }; |
660 | ||
c4aa6f31 | 661 | static int __init twlreg_init(void) |
fa16a5c1 | 662 | { |
c4aa6f31 | 663 | return platform_driver_register(&twlreg_driver); |
fa16a5c1 | 664 | } |
c4aa6f31 | 665 | subsys_initcall(twlreg_init); |
fa16a5c1 | 666 | |
c4aa6f31 | 667 | static void __exit twlreg_exit(void) |
fa16a5c1 | 668 | { |
c4aa6f31 | 669 | platform_driver_unregister(&twlreg_driver); |
fa16a5c1 | 670 | } |
c4aa6f31 | 671 | module_exit(twlreg_exit) |
fa16a5c1 | 672 | |
cac28ae6 | 673 | MODULE_DESCRIPTION("TWL4030 regulator driver"); |
fa16a5c1 | 674 | MODULE_LICENSE("GPL"); |