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da09155a MB |
1 | /* |
2 | * wm8350.c -- Voltage and current regulation for the Wolfson WM8350 PMIC | |
3 | * | |
4 | * Copyright 2007, 2008 Wolfson Microelectronics PLC. | |
5 | * | |
6 | * Author: Liam Girdwood | |
7 | * linux@wolfsonmicro.com | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/bitops.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/mfd/wm8350/core.h> | |
22 | #include <linux/mfd/wm8350/pmic.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/regulator/driver.h> | |
25 | #include <linux/regulator/machine.h> | |
26 | ||
221a7c7c MB |
27 | /* Maximum value possible for VSEL */ |
28 | #define WM8350_DCDC_MAX_VSEL 0x66 | |
29 | ||
da09155a MB |
30 | /* Microamps */ |
31 | static const int isink_cur[] = { | |
32 | 4, | |
33 | 5, | |
34 | 6, | |
35 | 7, | |
36 | 8, | |
37 | 10, | |
38 | 11, | |
39 | 14, | |
40 | 16, | |
41 | 19, | |
42 | 23, | |
43 | 27, | |
44 | 32, | |
45 | 39, | |
46 | 46, | |
47 | 54, | |
48 | 65, | |
49 | 77, | |
50 | 92, | |
51 | 109, | |
52 | 130, | |
53 | 154, | |
54 | 183, | |
55 | 218, | |
56 | 259, | |
57 | 308, | |
58 | 367, | |
59 | 436, | |
60 | 518, | |
61 | 616, | |
62 | 733, | |
63 | 872, | |
64 | 1037, | |
65 | 1233, | |
66 | 1466, | |
67 | 1744, | |
68 | 2073, | |
69 | 2466, | |
70 | 2933, | |
71 | 3487, | |
72 | 4147, | |
73 | 4932, | |
74 | 5865, | |
75 | 6975, | |
76 | 8294, | |
77 | 9864, | |
78 | 11730, | |
79 | 13949, | |
80 | 16589, | |
81 | 19728, | |
82 | 23460, | |
83 | 27899, | |
84 | 33178, | |
85 | 39455, | |
86 | 46920, | |
87 | 55798, | |
88 | 66355, | |
89 | 78910, | |
90 | 93840, | |
91 | 111596, | |
92 | 132710, | |
93 | 157820, | |
94 | 187681, | |
95 | 223191 | |
96 | }; | |
97 | ||
98 | static int get_isink_val(int min_uA, int max_uA, u16 *setting) | |
99 | { | |
100 | int i; | |
101 | ||
3a744038 | 102 | for (i = 0; i < ARRAY_SIZE(isink_cur); i++) { |
da09155a MB |
103 | if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) { |
104 | *setting = i; | |
105 | return 0; | |
106 | } | |
107 | } | |
108 | return -EINVAL; | |
109 | } | |
110 | ||
da09155a MB |
111 | static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA, |
112 | int max_uA) | |
113 | { | |
114 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
115 | int isink = rdev_get_id(rdev); | |
116 | u16 val, setting; | |
117 | int ret; | |
118 | ||
119 | ret = get_isink_val(min_uA, max_uA, &setting); | |
120 | if (ret != 0) | |
121 | return ret; | |
122 | ||
123 | switch (isink) { | |
124 | case WM8350_ISINK_A: | |
125 | val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) & | |
126 | ~WM8350_CS1_ISEL_MASK; | |
127 | wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_A, | |
128 | val | setting); | |
129 | break; | |
130 | case WM8350_ISINK_B: | |
131 | val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) & | |
132 | ~WM8350_CS1_ISEL_MASK; | |
133 | wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_B, | |
134 | val | setting); | |
135 | break; | |
136 | default: | |
137 | return -EINVAL; | |
138 | } | |
139 | ||
140 | return 0; | |
141 | } | |
142 | ||
143 | static int wm8350_isink_get_current(struct regulator_dev *rdev) | |
144 | { | |
145 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
146 | int isink = rdev_get_id(rdev); | |
147 | u16 val; | |
148 | ||
149 | switch (isink) { | |
150 | case WM8350_ISINK_A: | |
151 | val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) & | |
152 | WM8350_CS1_ISEL_MASK; | |
153 | break; | |
154 | case WM8350_ISINK_B: | |
155 | val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) & | |
156 | WM8350_CS1_ISEL_MASK; | |
157 | break; | |
158 | default: | |
159 | return 0; | |
160 | } | |
161 | ||
fa5a97bb | 162 | return isink_cur[val]; |
da09155a MB |
163 | } |
164 | ||
165 | /* turn on ISINK followed by DCDC */ | |
166 | static int wm8350_isink_enable(struct regulator_dev *rdev) | |
167 | { | |
168 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
169 | int isink = rdev_get_id(rdev); | |
170 | ||
171 | switch (isink) { | |
172 | case WM8350_ISINK_A: | |
173 | switch (wm8350->pmic.isink_A_dcdc) { | |
174 | case WM8350_DCDC_2: | |
175 | case WM8350_DCDC_5: | |
176 | wm8350_set_bits(wm8350, WM8350_POWER_MGMT_7, | |
177 | WM8350_CS1_ENA); | |
178 | wm8350_set_bits(wm8350, WM8350_CSA_FLASH_CONTROL, | |
179 | WM8350_CS1_DRIVE); | |
180 | wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, | |
181 | 1 << (wm8350->pmic.isink_A_dcdc - | |
182 | WM8350_DCDC_1)); | |
183 | break; | |
184 | default: | |
185 | return -EINVAL; | |
186 | } | |
187 | break; | |
188 | case WM8350_ISINK_B: | |
189 | switch (wm8350->pmic.isink_B_dcdc) { | |
190 | case WM8350_DCDC_2: | |
191 | case WM8350_DCDC_5: | |
192 | wm8350_set_bits(wm8350, WM8350_POWER_MGMT_7, | |
193 | WM8350_CS2_ENA); | |
194 | wm8350_set_bits(wm8350, WM8350_CSB_FLASH_CONTROL, | |
195 | WM8350_CS2_DRIVE); | |
196 | wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, | |
197 | 1 << (wm8350->pmic.isink_B_dcdc - | |
198 | WM8350_DCDC_1)); | |
199 | break; | |
200 | default: | |
201 | return -EINVAL; | |
202 | } | |
203 | break; | |
204 | default: | |
205 | return -EINVAL; | |
206 | } | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static int wm8350_isink_disable(struct regulator_dev *rdev) | |
211 | { | |
212 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
213 | int isink = rdev_get_id(rdev); | |
214 | ||
215 | switch (isink) { | |
216 | case WM8350_ISINK_A: | |
217 | switch (wm8350->pmic.isink_A_dcdc) { | |
218 | case WM8350_DCDC_2: | |
219 | case WM8350_DCDC_5: | |
220 | wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, | |
221 | 1 << (wm8350->pmic.isink_A_dcdc - | |
222 | WM8350_DCDC_1)); | |
223 | wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_7, | |
224 | WM8350_CS1_ENA); | |
225 | break; | |
226 | default: | |
227 | return -EINVAL; | |
228 | } | |
229 | break; | |
230 | case WM8350_ISINK_B: | |
231 | switch (wm8350->pmic.isink_B_dcdc) { | |
232 | case WM8350_DCDC_2: | |
233 | case WM8350_DCDC_5: | |
234 | wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, | |
235 | 1 << (wm8350->pmic.isink_B_dcdc - | |
236 | WM8350_DCDC_1)); | |
237 | wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_7, | |
238 | WM8350_CS2_ENA); | |
239 | break; | |
240 | default: | |
241 | return -EINVAL; | |
242 | } | |
243 | break; | |
244 | default: | |
245 | return -EINVAL; | |
246 | } | |
247 | return 0; | |
248 | } | |
249 | ||
250 | static int wm8350_isink_is_enabled(struct regulator_dev *rdev) | |
251 | { | |
252 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
253 | int isink = rdev_get_id(rdev); | |
254 | ||
255 | switch (isink) { | |
256 | case WM8350_ISINK_A: | |
257 | return wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) & | |
258 | 0x8000; | |
259 | case WM8350_ISINK_B: | |
260 | return wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) & | |
261 | 0x8000; | |
262 | } | |
263 | return -EINVAL; | |
264 | } | |
265 | ||
75c8ac22 MB |
266 | static int wm8350_isink_enable_time(struct regulator_dev *rdev) |
267 | { | |
268 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
269 | int isink = rdev_get_id(rdev); | |
270 | int reg; | |
271 | ||
272 | switch (isink) { | |
273 | case WM8350_ISINK_A: | |
274 | reg = wm8350_reg_read(wm8350, WM8350_CSA_FLASH_CONTROL); | |
275 | break; | |
276 | case WM8350_ISINK_B: | |
277 | reg = wm8350_reg_read(wm8350, WM8350_CSB_FLASH_CONTROL); | |
278 | break; | |
279 | default: | |
280 | return -EINVAL; | |
281 | } | |
282 | ||
283 | if (reg & WM8350_CS1_FLASH_MODE) { | |
284 | switch (reg & WM8350_CS1_ON_RAMP_MASK) { | |
285 | case 0: | |
286 | return 0; | |
287 | case 1: | |
288 | return 1950; | |
289 | case 2: | |
290 | return 3910; | |
291 | case 3: | |
292 | return 7800; | |
293 | } | |
294 | } else { | |
295 | switch (reg & WM8350_CS1_ON_RAMP_MASK) { | |
296 | case 0: | |
297 | return 0; | |
298 | case 1: | |
299 | return 250000; | |
300 | case 2: | |
301 | return 500000; | |
302 | case 3: | |
303 | return 1000000; | |
304 | } | |
305 | } | |
306 | ||
307 | return -EINVAL; | |
308 | } | |
309 | ||
310 | ||
da09155a MB |
311 | int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode, |
312 | u16 trigger, u16 duration, u16 on_ramp, u16 off_ramp, | |
313 | u16 drive) | |
314 | { | |
315 | switch (isink) { | |
316 | case WM8350_ISINK_A: | |
317 | wm8350_reg_write(wm8350, WM8350_CSA_FLASH_CONTROL, | |
318 | (mode ? WM8350_CS1_FLASH_MODE : 0) | | |
319 | (trigger ? WM8350_CS1_TRIGSRC : 0) | | |
320 | duration | on_ramp | off_ramp | drive); | |
321 | break; | |
322 | case WM8350_ISINK_B: | |
323 | wm8350_reg_write(wm8350, WM8350_CSB_FLASH_CONTROL, | |
324 | (mode ? WM8350_CS2_FLASH_MODE : 0) | | |
325 | (trigger ? WM8350_CS2_TRIGSRC : 0) | | |
326 | duration | on_ramp | off_ramp | drive); | |
327 | break; | |
328 | default: | |
329 | return -EINVAL; | |
330 | } | |
331 | return 0; | |
332 | } | |
333 | EXPORT_SYMBOL_GPL(wm8350_isink_set_flash); | |
334 | ||
da09155a MB |
335 | static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV) |
336 | { | |
337 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
c7057422 | 338 | int sel, volt_reg, dcdc = rdev_get_id(rdev); |
da09155a MB |
339 | u16 val; |
340 | ||
c7057422 | 341 | dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, dcdc, uV / 1000); |
da09155a MB |
342 | |
343 | switch (dcdc) { | |
344 | case WM8350_DCDC_1: | |
345 | volt_reg = WM8350_DCDC1_LOW_POWER; | |
346 | break; | |
347 | case WM8350_DCDC_3: | |
348 | volt_reg = WM8350_DCDC3_LOW_POWER; | |
349 | break; | |
350 | case WM8350_DCDC_4: | |
351 | volt_reg = WM8350_DCDC4_LOW_POWER; | |
352 | break; | |
353 | case WM8350_DCDC_6: | |
354 | volt_reg = WM8350_DCDC6_LOW_POWER; | |
355 | break; | |
356 | case WM8350_DCDC_2: | |
357 | case WM8350_DCDC_5: | |
358 | default: | |
359 | return -EINVAL; | |
360 | } | |
361 | ||
c7057422 AL |
362 | sel = regulator_map_voltage_linear(rdev, uV, uV); |
363 | if (sel < 0) | |
364 | return -EINVAL; | |
365 | ||
da09155a MB |
366 | /* all DCDCs have same mV bits */ |
367 | val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK; | |
c7057422 | 368 | wm8350_reg_write(wm8350, volt_reg, val | sel); |
da09155a MB |
369 | return 0; |
370 | } | |
371 | ||
372 | static int wm8350_dcdc_set_suspend_enable(struct regulator_dev *rdev) | |
373 | { | |
374 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
375 | int dcdc = rdev_get_id(rdev); | |
376 | u16 val; | |
377 | ||
378 | switch (dcdc) { | |
379 | case WM8350_DCDC_1: | |
380 | val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER) | |
381 | & ~WM8350_DCDC_HIB_MODE_MASK; | |
382 | wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER, | |
eb416815 | 383 | val | wm8350->pmic.dcdc1_hib_mode); |
da09155a MB |
384 | break; |
385 | case WM8350_DCDC_3: | |
386 | val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER) | |
387 | & ~WM8350_DCDC_HIB_MODE_MASK; | |
388 | wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER, | |
eb416815 | 389 | val | wm8350->pmic.dcdc3_hib_mode); |
da09155a MB |
390 | break; |
391 | case WM8350_DCDC_4: | |
392 | val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER) | |
393 | & ~WM8350_DCDC_HIB_MODE_MASK; | |
394 | wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER, | |
eb416815 | 395 | val | wm8350->pmic.dcdc4_hib_mode); |
da09155a MB |
396 | break; |
397 | case WM8350_DCDC_6: | |
398 | val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER) | |
399 | & ~WM8350_DCDC_HIB_MODE_MASK; | |
400 | wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER, | |
eb416815 | 401 | val | wm8350->pmic.dcdc6_hib_mode); |
da09155a MB |
402 | break; |
403 | case WM8350_DCDC_2: | |
404 | case WM8350_DCDC_5: | |
405 | default: | |
406 | return -EINVAL; | |
407 | } | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | static int wm8350_dcdc_set_suspend_disable(struct regulator_dev *rdev) | |
413 | { | |
414 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
415 | int dcdc = rdev_get_id(rdev); | |
416 | u16 val; | |
417 | ||
418 | switch (dcdc) { | |
419 | case WM8350_DCDC_1: | |
420 | val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER); | |
421 | wm8350->pmic.dcdc1_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
422 | wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER, | |
cee1a799 | 423 | val | WM8350_DCDC_HIB_MODE_DIS); |
da09155a MB |
424 | break; |
425 | case WM8350_DCDC_3: | |
426 | val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER); | |
427 | wm8350->pmic.dcdc3_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
428 | wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER, | |
cee1a799 | 429 | val | WM8350_DCDC_HIB_MODE_DIS); |
da09155a MB |
430 | break; |
431 | case WM8350_DCDC_4: | |
432 | val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER); | |
433 | wm8350->pmic.dcdc4_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
434 | wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER, | |
cee1a799 | 435 | val | WM8350_DCDC_HIB_MODE_DIS); |
da09155a MB |
436 | break; |
437 | case WM8350_DCDC_6: | |
438 | val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER); | |
439 | wm8350->pmic.dcdc6_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
440 | wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER, | |
cee1a799 | 441 | val | WM8350_DCDC_HIB_MODE_DIS); |
da09155a MB |
442 | break; |
443 | case WM8350_DCDC_2: | |
444 | case WM8350_DCDC_5: | |
445 | default: | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
449 | return 0; | |
450 | } | |
451 | ||
452 | static int wm8350_dcdc25_set_suspend_enable(struct regulator_dev *rdev) | |
453 | { | |
454 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
455 | int dcdc = rdev_get_id(rdev); | |
456 | u16 val; | |
457 | ||
458 | switch (dcdc) { | |
459 | case WM8350_DCDC_2: | |
460 | val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL) | |
461 | & ~WM8350_DC2_HIB_MODE_MASK; | |
462 | wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val | | |
93009286 | 463 | (WM8350_DC2_HIB_MODE_ACTIVE << WM8350_DC2_HIB_MODE_SHIFT)); |
da09155a MB |
464 | break; |
465 | case WM8350_DCDC_5: | |
466 | val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL) | |
93009286 | 467 | & ~WM8350_DC5_HIB_MODE_MASK; |
da09155a | 468 | wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val | |
93009286 | 469 | (WM8350_DC5_HIB_MODE_ACTIVE << WM8350_DC5_HIB_MODE_SHIFT)); |
da09155a MB |
470 | break; |
471 | default: | |
472 | return -EINVAL; | |
473 | } | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int wm8350_dcdc25_set_suspend_disable(struct regulator_dev *rdev) | |
478 | { | |
479 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
480 | int dcdc = rdev_get_id(rdev); | |
481 | u16 val; | |
482 | ||
483 | switch (dcdc) { | |
484 | case WM8350_DCDC_2: | |
485 | val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL) | |
486 | & ~WM8350_DC2_HIB_MODE_MASK; | |
487 | wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val | | |
93009286 | 488 | (WM8350_DC2_HIB_MODE_DISABLE << WM8350_DC2_HIB_MODE_SHIFT)); |
da09155a MB |
489 | break; |
490 | case WM8350_DCDC_5: | |
491 | val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL) | |
93009286 | 492 | & ~WM8350_DC5_HIB_MODE_MASK; |
da09155a | 493 | wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val | |
93009286 | 494 | (WM8350_DC5_HIB_MODE_DISABLE << WM8350_DC5_HIB_MODE_SHIFT)); |
da09155a MB |
495 | break; |
496 | default: | |
497 | return -EINVAL; | |
498 | } | |
499 | return 0; | |
500 | } | |
501 | ||
502 | static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev, | |
503 | unsigned int mode) | |
504 | { | |
505 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
506 | int dcdc = rdev_get_id(rdev); | |
507 | u16 *hib_mode; | |
508 | ||
509 | switch (dcdc) { | |
510 | case WM8350_DCDC_1: | |
511 | hib_mode = &wm8350->pmic.dcdc1_hib_mode; | |
512 | break; | |
513 | case WM8350_DCDC_3: | |
514 | hib_mode = &wm8350->pmic.dcdc3_hib_mode; | |
515 | break; | |
516 | case WM8350_DCDC_4: | |
517 | hib_mode = &wm8350->pmic.dcdc4_hib_mode; | |
518 | break; | |
519 | case WM8350_DCDC_6: | |
520 | hib_mode = &wm8350->pmic.dcdc6_hib_mode; | |
521 | break; | |
522 | case WM8350_DCDC_2: | |
523 | case WM8350_DCDC_5: | |
524 | default: | |
525 | return -EINVAL; | |
526 | } | |
527 | ||
528 | switch (mode) { | |
529 | case REGULATOR_MODE_NORMAL: | |
530 | *hib_mode = WM8350_DCDC_HIB_MODE_IMAGE; | |
531 | break; | |
532 | case REGULATOR_MODE_IDLE: | |
533 | *hib_mode = WM8350_DCDC_HIB_MODE_STANDBY; | |
534 | break; | |
535 | case REGULATOR_MODE_STANDBY: | |
536 | *hib_mode = WM8350_DCDC_HIB_MODE_LDO_IM; | |
537 | break; | |
538 | default: | |
539 | return -EINVAL; | |
540 | } | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
c7057422 AL |
545 | static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, |
546 | unsigned selector) | |
547 | { | |
548 | if (selector > WM8350_LDO1_VSEL_MASK) | |
549 | return -EINVAL; | |
550 | ||
551 | if (selector < 16) | |
552 | return (selector * 50000) + 900000; | |
553 | else | |
554 | return ((selector - 16) * 100000) + 1800000; | |
555 | } | |
556 | ||
557 | static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, | |
558 | int max_uV) | |
559 | { | |
560 | int volt, sel; | |
561 | int min_mV = min_uV / 1000; | |
562 | int max_mV = max_uV / 1000; | |
563 | ||
564 | if (min_mV < 900 || min_mV > 3300) | |
565 | return -EINVAL; | |
566 | if (max_mV < 900 || max_mV > 3300) | |
567 | return -EINVAL; | |
568 | ||
569 | if (min_mV < 1800) /* step size is 50mV < 1800mV */ | |
570 | sel = DIV_ROUND_UP(min_uV - 900, 50); | |
571 | else /* step size is 100mV > 1800mV */ | |
572 | sel = DIV_ROUND_UP(min_uV - 1800, 100) + 16; | |
573 | ||
574 | volt = wm8350_ldo_list_voltage(rdev, sel); | |
575 | if (volt < min_uV || volt > max_uV) | |
576 | return -EINVAL; | |
577 | ||
578 | return sel; | |
579 | } | |
580 | ||
da09155a MB |
581 | static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) |
582 | { | |
583 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
c7057422 | 584 | int sel, volt_reg, ldo = rdev_get_id(rdev); |
da09155a MB |
585 | u16 val; |
586 | ||
c7057422 | 587 | dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, ldo, uV / 1000); |
da09155a MB |
588 | |
589 | switch (ldo) { | |
590 | case WM8350_LDO_1: | |
591 | volt_reg = WM8350_LDO1_LOW_POWER; | |
592 | break; | |
593 | case WM8350_LDO_2: | |
594 | volt_reg = WM8350_LDO2_LOW_POWER; | |
595 | break; | |
596 | case WM8350_LDO_3: | |
597 | volt_reg = WM8350_LDO3_LOW_POWER; | |
598 | break; | |
599 | case WM8350_LDO_4: | |
600 | volt_reg = WM8350_LDO4_LOW_POWER; | |
601 | break; | |
602 | default: | |
603 | return -EINVAL; | |
604 | } | |
605 | ||
c7057422 AL |
606 | sel = wm8350_ldo_map_voltage(rdev, uV, uV); |
607 | if (sel < 0) | |
608 | return -EINVAL; | |
609 | ||
da09155a MB |
610 | /* all LDOs have same mV bits */ |
611 | val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK; | |
c7057422 | 612 | wm8350_reg_write(wm8350, volt_reg, val | sel); |
da09155a MB |
613 | return 0; |
614 | } | |
615 | ||
616 | static int wm8350_ldo_set_suspend_enable(struct regulator_dev *rdev) | |
617 | { | |
618 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
619 | int volt_reg, ldo = rdev_get_id(rdev); | |
620 | u16 val; | |
621 | ||
622 | switch (ldo) { | |
623 | case WM8350_LDO_1: | |
624 | volt_reg = WM8350_LDO1_LOW_POWER; | |
625 | break; | |
626 | case WM8350_LDO_2: | |
627 | volt_reg = WM8350_LDO2_LOW_POWER; | |
628 | break; | |
629 | case WM8350_LDO_3: | |
630 | volt_reg = WM8350_LDO3_LOW_POWER; | |
631 | break; | |
632 | case WM8350_LDO_4: | |
633 | volt_reg = WM8350_LDO4_LOW_POWER; | |
634 | break; | |
635 | default: | |
636 | return -EINVAL; | |
637 | } | |
638 | ||
639 | /* all LDOs have same mV bits */ | |
640 | val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_HIB_MODE_MASK; | |
641 | wm8350_reg_write(wm8350, volt_reg, val); | |
642 | return 0; | |
643 | } | |
644 | ||
645 | static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) | |
646 | { | |
647 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
648 | int volt_reg, ldo = rdev_get_id(rdev); | |
649 | u16 val; | |
650 | ||
651 | switch (ldo) { | |
652 | case WM8350_LDO_1: | |
653 | volt_reg = WM8350_LDO1_LOW_POWER; | |
654 | break; | |
655 | case WM8350_LDO_2: | |
656 | volt_reg = WM8350_LDO2_LOW_POWER; | |
657 | break; | |
658 | case WM8350_LDO_3: | |
659 | volt_reg = WM8350_LDO3_LOW_POWER; | |
660 | break; | |
661 | case WM8350_LDO_4: | |
662 | volt_reg = WM8350_LDO4_LOW_POWER; | |
663 | break; | |
664 | default: | |
665 | return -EINVAL; | |
666 | } | |
667 | ||
668 | /* all LDOs have same mV bits */ | |
669 | val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_HIB_MODE_MASK; | |
cee1a799 | 670 | wm8350_reg_write(wm8350, volt_reg, val | WM8350_LDO1_HIB_MODE_DIS); |
da09155a MB |
671 | return 0; |
672 | } | |
673 | ||
da09155a MB |
674 | int wm8350_dcdc_set_slot(struct wm8350 *wm8350, int dcdc, u16 start, |
675 | u16 stop, u16 fault) | |
676 | { | |
677 | int slot_reg; | |
678 | u16 val; | |
679 | ||
680 | dev_dbg(wm8350->dev, "%s %d start %d stop %d\n", | |
681 | __func__, dcdc, start, stop); | |
682 | ||
683 | /* slot valid ? */ | |
684 | if (start > 15 || stop > 15) | |
685 | return -EINVAL; | |
686 | ||
687 | switch (dcdc) { | |
688 | case WM8350_DCDC_1: | |
689 | slot_reg = WM8350_DCDC1_TIMEOUTS; | |
690 | break; | |
691 | case WM8350_DCDC_2: | |
692 | slot_reg = WM8350_DCDC2_TIMEOUTS; | |
693 | break; | |
694 | case WM8350_DCDC_3: | |
695 | slot_reg = WM8350_DCDC3_TIMEOUTS; | |
696 | break; | |
697 | case WM8350_DCDC_4: | |
698 | slot_reg = WM8350_DCDC4_TIMEOUTS; | |
699 | break; | |
700 | case WM8350_DCDC_5: | |
701 | slot_reg = WM8350_DCDC5_TIMEOUTS; | |
702 | break; | |
703 | case WM8350_DCDC_6: | |
704 | slot_reg = WM8350_DCDC6_TIMEOUTS; | |
705 | break; | |
706 | default: | |
707 | return -EINVAL; | |
708 | } | |
709 | ||
710 | val = wm8350_reg_read(wm8350, slot_reg) & | |
711 | ~(WM8350_DC1_ENSLOT_MASK | WM8350_DC1_SDSLOT_MASK | | |
712 | WM8350_DC1_ERRACT_MASK); | |
713 | wm8350_reg_write(wm8350, slot_reg, | |
714 | val | (start << WM8350_DC1_ENSLOT_SHIFT) | | |
715 | (stop << WM8350_DC1_SDSLOT_SHIFT) | | |
716 | (fault << WM8350_DC1_ERRACT_SHIFT)); | |
717 | ||
718 | return 0; | |
719 | } | |
720 | EXPORT_SYMBOL_GPL(wm8350_dcdc_set_slot); | |
721 | ||
722 | int wm8350_ldo_set_slot(struct wm8350 *wm8350, int ldo, u16 start, u16 stop) | |
723 | { | |
724 | int slot_reg; | |
725 | u16 val; | |
726 | ||
727 | dev_dbg(wm8350->dev, "%s %d start %d stop %d\n", | |
728 | __func__, ldo, start, stop); | |
729 | ||
730 | /* slot valid ? */ | |
731 | if (start > 15 || stop > 15) | |
732 | return -EINVAL; | |
733 | ||
734 | switch (ldo) { | |
735 | case WM8350_LDO_1: | |
736 | slot_reg = WM8350_LDO1_TIMEOUTS; | |
737 | break; | |
738 | case WM8350_LDO_2: | |
739 | slot_reg = WM8350_LDO2_TIMEOUTS; | |
740 | break; | |
741 | case WM8350_LDO_3: | |
742 | slot_reg = WM8350_LDO3_TIMEOUTS; | |
743 | break; | |
744 | case WM8350_LDO_4: | |
745 | slot_reg = WM8350_LDO4_TIMEOUTS; | |
746 | break; | |
747 | default: | |
748 | return -EINVAL; | |
749 | } | |
750 | ||
751 | val = wm8350_reg_read(wm8350, slot_reg) & ~WM8350_LDO1_SDSLOT_MASK; | |
752 | wm8350_reg_write(wm8350, slot_reg, val | ((start << 10) | (stop << 6))); | |
753 | return 0; | |
754 | } | |
755 | EXPORT_SYMBOL_GPL(wm8350_ldo_set_slot); | |
756 | ||
757 | int wm8350_dcdc25_set_mode(struct wm8350 *wm8350, int dcdc, u16 mode, | |
758 | u16 ilim, u16 ramp, u16 feedback) | |
759 | { | |
760 | u16 val; | |
761 | ||
762 | dev_dbg(wm8350->dev, "%s %d mode: %s %s\n", __func__, dcdc, | |
763 | mode ? "normal" : "boost", ilim ? "low" : "normal"); | |
764 | ||
765 | switch (dcdc) { | |
766 | case WM8350_DCDC_2: | |
767 | val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL) | |
768 | & ~(WM8350_DC2_MODE_MASK | WM8350_DC2_ILIM_MASK | | |
769 | WM8350_DC2_RMP_MASK | WM8350_DC2_FBSRC_MASK); | |
770 | wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val | | |
771 | (mode << WM8350_DC2_MODE_SHIFT) | | |
772 | (ilim << WM8350_DC2_ILIM_SHIFT) | | |
773 | (ramp << WM8350_DC2_RMP_SHIFT) | | |
774 | (feedback << WM8350_DC2_FBSRC_SHIFT)); | |
775 | break; | |
776 | case WM8350_DCDC_5: | |
777 | val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL) | |
778 | & ~(WM8350_DC5_MODE_MASK | WM8350_DC5_ILIM_MASK | | |
779 | WM8350_DC5_RMP_MASK | WM8350_DC5_FBSRC_MASK); | |
780 | wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val | | |
781 | (mode << WM8350_DC5_MODE_SHIFT) | | |
782 | (ilim << WM8350_DC5_ILIM_SHIFT) | | |
783 | (ramp << WM8350_DC5_RMP_SHIFT) | | |
784 | (feedback << WM8350_DC5_FBSRC_SHIFT)); | |
785 | break; | |
786 | default: | |
787 | return -EINVAL; | |
788 | } | |
789 | ||
790 | return 0; | |
791 | } | |
792 | EXPORT_SYMBOL_GPL(wm8350_dcdc25_set_mode); | |
793 | ||
da09155a MB |
794 | static int force_continuous_enable(struct wm8350 *wm8350, int dcdc, int enable) |
795 | { | |
796 | int reg = 0, ret; | |
797 | ||
798 | switch (dcdc) { | |
799 | case WM8350_DCDC_1: | |
800 | reg = WM8350_DCDC1_FORCE_PWM; | |
801 | break; | |
802 | case WM8350_DCDC_3: | |
803 | reg = WM8350_DCDC3_FORCE_PWM; | |
804 | break; | |
805 | case WM8350_DCDC_4: | |
806 | reg = WM8350_DCDC4_FORCE_PWM; | |
807 | break; | |
808 | case WM8350_DCDC_6: | |
809 | reg = WM8350_DCDC6_FORCE_PWM; | |
810 | break; | |
811 | default: | |
812 | return -EINVAL; | |
813 | } | |
814 | ||
815 | if (enable) | |
816 | ret = wm8350_set_bits(wm8350, reg, | |
817 | WM8350_DCDC1_FORCE_PWM_ENA); | |
818 | else | |
819 | ret = wm8350_clear_bits(wm8350, reg, | |
820 | WM8350_DCDC1_FORCE_PWM_ENA); | |
821 | return ret; | |
822 | } | |
823 | ||
824 | static int wm8350_dcdc_set_mode(struct regulator_dev *rdev, unsigned int mode) | |
825 | { | |
826 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
827 | int dcdc = rdev_get_id(rdev); | |
828 | u16 val; | |
829 | ||
830 | if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6) | |
831 | return -EINVAL; | |
832 | ||
833 | if (dcdc == WM8350_DCDC_2 || dcdc == WM8350_DCDC_5) | |
834 | return -EINVAL; | |
835 | ||
836 | val = 1 << (dcdc - WM8350_DCDC_1); | |
837 | ||
838 | switch (mode) { | |
839 | case REGULATOR_MODE_FAST: | |
840 | /* force continuous mode */ | |
841 | wm8350_set_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val); | |
842 | wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val); | |
843 | force_continuous_enable(wm8350, dcdc, 1); | |
844 | break; | |
845 | case REGULATOR_MODE_NORMAL: | |
846 | /* active / pulse skipping */ | |
847 | wm8350_set_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val); | |
848 | wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val); | |
849 | force_continuous_enable(wm8350, dcdc, 0); | |
850 | break; | |
851 | case REGULATOR_MODE_IDLE: | |
852 | /* standby mode */ | |
853 | force_continuous_enable(wm8350, dcdc, 0); | |
854 | wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val); | |
855 | wm8350_clear_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val); | |
856 | break; | |
857 | case REGULATOR_MODE_STANDBY: | |
858 | /* LDO mode */ | |
859 | force_continuous_enable(wm8350, dcdc, 0); | |
860 | wm8350_set_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val); | |
861 | break; | |
862 | } | |
863 | ||
864 | return 0; | |
865 | } | |
866 | ||
867 | static unsigned int wm8350_dcdc_get_mode(struct regulator_dev *rdev) | |
868 | { | |
869 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
870 | int dcdc = rdev_get_id(rdev); | |
871 | u16 mask, sleep, active, force; | |
872 | int mode = REGULATOR_MODE_NORMAL; | |
33f301af | 873 | int reg; |
da09155a | 874 | |
33f301af MB |
875 | switch (dcdc) { |
876 | case WM8350_DCDC_1: | |
877 | reg = WM8350_DCDC1_FORCE_PWM; | |
878 | break; | |
879 | case WM8350_DCDC_3: | |
880 | reg = WM8350_DCDC3_FORCE_PWM; | |
881 | break; | |
882 | case WM8350_DCDC_4: | |
883 | reg = WM8350_DCDC4_FORCE_PWM; | |
884 | break; | |
885 | case WM8350_DCDC_6: | |
886 | reg = WM8350_DCDC6_FORCE_PWM; | |
887 | break; | |
888 | default: | |
da09155a | 889 | return -EINVAL; |
33f301af | 890 | } |
da09155a MB |
891 | |
892 | mask = 1 << (dcdc - WM8350_DCDC_1); | |
893 | active = wm8350_reg_read(wm8350, WM8350_DCDC_ACTIVE_OPTIONS) & mask; | |
33f301af | 894 | force = wm8350_reg_read(wm8350, reg) & WM8350_DCDC1_FORCE_PWM_ENA; |
da09155a | 895 | sleep = wm8350_reg_read(wm8350, WM8350_DCDC_SLEEP_OPTIONS) & mask; |
33f301af | 896 | |
da09155a MB |
897 | dev_dbg(wm8350->dev, "mask %x active %x sleep %x force %x", |
898 | mask, active, sleep, force); | |
899 | ||
900 | if (active && !sleep) { | |
901 | if (force) | |
902 | mode = REGULATOR_MODE_FAST; | |
903 | else | |
904 | mode = REGULATOR_MODE_NORMAL; | |
905 | } else if (!active && !sleep) | |
906 | mode = REGULATOR_MODE_IDLE; | |
8ecee36a | 907 | else if (sleep) |
da09155a MB |
908 | mode = REGULATOR_MODE_STANDBY; |
909 | ||
910 | return mode; | |
911 | } | |
912 | ||
913 | static unsigned int wm8350_ldo_get_mode(struct regulator_dev *rdev) | |
914 | { | |
915 | return REGULATOR_MODE_NORMAL; | |
916 | } | |
917 | ||
918 | struct wm8350_dcdc_efficiency { | |
919 | int uA_load_min; | |
920 | int uA_load_max; | |
921 | unsigned int mode; | |
922 | }; | |
923 | ||
924 | static const struct wm8350_dcdc_efficiency dcdc1_6_efficiency[] = { | |
925 | {0, 10000, REGULATOR_MODE_STANDBY}, /* 0 - 10mA - LDO */ | |
926 | {10000, 100000, REGULATOR_MODE_IDLE}, /* 10mA - 100mA - Standby */ | |
927 | {100000, 1000000, REGULATOR_MODE_NORMAL}, /* > 100mA - Active */ | |
928 | {-1, -1, REGULATOR_MODE_NORMAL}, | |
929 | }; | |
930 | ||
931 | static const struct wm8350_dcdc_efficiency dcdc3_4_efficiency[] = { | |
932 | {0, 10000, REGULATOR_MODE_STANDBY}, /* 0 - 10mA - LDO */ | |
933 | {10000, 100000, REGULATOR_MODE_IDLE}, /* 10mA - 100mA - Standby */ | |
934 | {100000, 800000, REGULATOR_MODE_NORMAL}, /* > 100mA - Active */ | |
935 | {-1, -1, REGULATOR_MODE_NORMAL}, | |
936 | }; | |
937 | ||
938 | static unsigned int get_mode(int uA, const struct wm8350_dcdc_efficiency *eff) | |
939 | { | |
940 | int i = 0; | |
941 | ||
942 | while (eff[i].uA_load_min != -1) { | |
943 | if (uA >= eff[i].uA_load_min && uA <= eff[i].uA_load_max) | |
944 | return eff[i].mode; | |
945 | } | |
946 | return REGULATOR_MODE_NORMAL; | |
947 | } | |
948 | ||
949 | /* Query the regulator for it's most efficient mode @ uV,uA | |
950 | * WM8350 regulator efficiency is pretty similar over | |
951 | * different input and output uV. | |
952 | */ | |
953 | static unsigned int wm8350_dcdc_get_optimum_mode(struct regulator_dev *rdev, | |
954 | int input_uV, int output_uV, | |
955 | int output_uA) | |
956 | { | |
957 | int dcdc = rdev_get_id(rdev), mode; | |
958 | ||
959 | switch (dcdc) { | |
960 | case WM8350_DCDC_1: | |
961 | case WM8350_DCDC_6: | |
962 | mode = get_mode(output_uA, dcdc1_6_efficiency); | |
963 | break; | |
964 | case WM8350_DCDC_3: | |
965 | case WM8350_DCDC_4: | |
966 | mode = get_mode(output_uA, dcdc3_4_efficiency); | |
967 | break; | |
968 | default: | |
969 | mode = REGULATOR_MODE_NORMAL; | |
970 | break; | |
971 | } | |
972 | return mode; | |
973 | } | |
974 | ||
da09155a | 975 | static struct regulator_ops wm8350_dcdc_ops = { |
107a3967 | 976 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
b4ec87ae | 977 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
107a3967 | 978 | .list_voltage = regulator_list_voltage_linear, |
fcbb71f6 | 979 | .map_voltage = regulator_map_voltage_linear, |
a540f682 MB |
980 | .enable = regulator_enable_regmap, |
981 | .disable = regulator_disable_regmap, | |
982 | .is_enabled = regulator_is_enabled_regmap, | |
da09155a MB |
983 | .get_mode = wm8350_dcdc_get_mode, |
984 | .set_mode = wm8350_dcdc_set_mode, | |
985 | .get_optimum_mode = wm8350_dcdc_get_optimum_mode, | |
da09155a MB |
986 | .set_suspend_voltage = wm8350_dcdc_set_suspend_voltage, |
987 | .set_suspend_enable = wm8350_dcdc_set_suspend_enable, | |
988 | .set_suspend_disable = wm8350_dcdc_set_suspend_disable, | |
989 | .set_suspend_mode = wm8350_dcdc_set_suspend_mode, | |
990 | }; | |
991 | ||
992 | static struct regulator_ops wm8350_dcdc2_5_ops = { | |
a540f682 MB |
993 | .enable = regulator_enable_regmap, |
994 | .disable = regulator_disable_regmap, | |
995 | .is_enabled = regulator_is_enabled_regmap, | |
da09155a MB |
996 | .set_suspend_enable = wm8350_dcdc25_set_suspend_enable, |
997 | .set_suspend_disable = wm8350_dcdc25_set_suspend_disable, | |
998 | }; | |
999 | ||
1000 | static struct regulator_ops wm8350_ldo_ops = { | |
fc492f9b MB |
1001 | .map_voltage = wm8350_ldo_map_voltage, |
1002 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
b4ec87ae | 1003 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
221a7c7c | 1004 | .list_voltage = wm8350_ldo_list_voltage, |
a540f682 MB |
1005 | .enable = regulator_enable_regmap, |
1006 | .disable = regulator_disable_regmap, | |
1007 | .is_enabled = regulator_is_enabled_regmap, | |
da09155a MB |
1008 | .get_mode = wm8350_ldo_get_mode, |
1009 | .set_suspend_voltage = wm8350_ldo_set_suspend_voltage, | |
1010 | .set_suspend_enable = wm8350_ldo_set_suspend_enable, | |
1011 | .set_suspend_disable = wm8350_ldo_set_suspend_disable, | |
1012 | }; | |
1013 | ||
1014 | static struct regulator_ops wm8350_isink_ops = { | |
1015 | .set_current_limit = wm8350_isink_set_current, | |
1016 | .get_current_limit = wm8350_isink_get_current, | |
1017 | .enable = wm8350_isink_enable, | |
1018 | .disable = wm8350_isink_disable, | |
1019 | .is_enabled = wm8350_isink_is_enabled, | |
75c8ac22 | 1020 | .enable_time = wm8350_isink_enable_time, |
da09155a MB |
1021 | }; |
1022 | ||
47924b6a | 1023 | static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { |
da09155a MB |
1024 | { |
1025 | .name = "DCDC1", | |
1026 | .id = WM8350_DCDC_1, | |
1027 | .ops = &wm8350_dcdc_ops, | |
1028 | .irq = WM8350_IRQ_UV_DC1, | |
1029 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1030 | .n_voltages = WM8350_DCDC_MAX_VSEL + 1, |
107a3967 MB |
1031 | .min_uV = 850000, |
1032 | .uV_step = 25000, | |
b4ec87ae MB |
1033 | .vsel_reg = WM8350_DCDC1_CONTROL, |
1034 | .vsel_mask = WM8350_DC1_VSEL_MASK, | |
a540f682 MB |
1035 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1036 | .enable_mask = WM8350_DC1_ENA, | |
da09155a MB |
1037 | .owner = THIS_MODULE, |
1038 | }, | |
1039 | { | |
1040 | .name = "DCDC2", | |
1041 | .id = WM8350_DCDC_2, | |
1042 | .ops = &wm8350_dcdc2_5_ops, | |
1043 | .irq = WM8350_IRQ_UV_DC2, | |
1044 | .type = REGULATOR_VOLTAGE, | |
a540f682 MB |
1045 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1046 | .enable_mask = WM8350_DC2_ENA, | |
da09155a MB |
1047 | .owner = THIS_MODULE, |
1048 | }, | |
1049 | { | |
1050 | .name = "DCDC3", | |
1051 | .id = WM8350_DCDC_3, | |
1052 | .ops = &wm8350_dcdc_ops, | |
1053 | .irq = WM8350_IRQ_UV_DC3, | |
1054 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1055 | .n_voltages = WM8350_DCDC_MAX_VSEL + 1, |
107a3967 MB |
1056 | .min_uV = 850000, |
1057 | .uV_step = 25000, | |
b4ec87ae MB |
1058 | .vsel_reg = WM8350_DCDC3_CONTROL, |
1059 | .vsel_mask = WM8350_DC3_VSEL_MASK, | |
a540f682 MB |
1060 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1061 | .enable_mask = WM8350_DC3_ENA, | |
da09155a MB |
1062 | .owner = THIS_MODULE, |
1063 | }, | |
1064 | { | |
1065 | .name = "DCDC4", | |
1066 | .id = WM8350_DCDC_4, | |
1067 | .ops = &wm8350_dcdc_ops, | |
1068 | .irq = WM8350_IRQ_UV_DC4, | |
1069 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1070 | .n_voltages = WM8350_DCDC_MAX_VSEL + 1, |
0ff47246 AL |
1071 | .min_uV = 850000, |
1072 | .uV_step = 25000, | |
b4ec87ae MB |
1073 | .vsel_reg = WM8350_DCDC4_CONTROL, |
1074 | .vsel_mask = WM8350_DC4_VSEL_MASK, | |
a540f682 MB |
1075 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1076 | .enable_mask = WM8350_DC4_ENA, | |
da09155a MB |
1077 | .owner = THIS_MODULE, |
1078 | }, | |
1079 | { | |
1080 | .name = "DCDC5", | |
1081 | .id = WM8350_DCDC_5, | |
1082 | .ops = &wm8350_dcdc2_5_ops, | |
1083 | .irq = WM8350_IRQ_UV_DC5, | |
1084 | .type = REGULATOR_VOLTAGE, | |
a540f682 MB |
1085 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1086 | .enable_mask = WM8350_DC5_ENA, | |
da09155a MB |
1087 | .owner = THIS_MODULE, |
1088 | }, | |
1089 | { | |
1090 | .name = "DCDC6", | |
1091 | .id = WM8350_DCDC_6, | |
1092 | .ops = &wm8350_dcdc_ops, | |
1093 | .irq = WM8350_IRQ_UV_DC6, | |
1094 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1095 | .n_voltages = WM8350_DCDC_MAX_VSEL + 1, |
107a3967 MB |
1096 | .min_uV = 850000, |
1097 | .uV_step = 25000, | |
b4ec87ae MB |
1098 | .vsel_reg = WM8350_DCDC6_CONTROL, |
1099 | .vsel_mask = WM8350_DC6_VSEL_MASK, | |
a540f682 MB |
1100 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1101 | .enable_mask = WM8350_DC6_ENA, | |
da09155a MB |
1102 | .owner = THIS_MODULE, |
1103 | }, | |
1104 | { | |
1105 | .name = "LDO1", | |
1106 | .id = WM8350_LDO_1, | |
1107 | .ops = &wm8350_ldo_ops, | |
1108 | .irq = WM8350_IRQ_UV_LDO1, | |
1109 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1110 | .n_voltages = WM8350_LDO1_VSEL_MASK + 1, |
b4ec87ae MB |
1111 | .vsel_reg = WM8350_LDO1_CONTROL, |
1112 | .vsel_mask = WM8350_LDO1_VSEL_MASK, | |
a540f682 MB |
1113 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1114 | .enable_mask = WM8350_LDO1_ENA, | |
da09155a MB |
1115 | .owner = THIS_MODULE, |
1116 | }, | |
1117 | { | |
1118 | .name = "LDO2", | |
1119 | .id = WM8350_LDO_2, | |
1120 | .ops = &wm8350_ldo_ops, | |
1121 | .irq = WM8350_IRQ_UV_LDO2, | |
1122 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1123 | .n_voltages = WM8350_LDO2_VSEL_MASK + 1, |
b4ec87ae MB |
1124 | .vsel_reg = WM8350_LDO2_CONTROL, |
1125 | .vsel_mask = WM8350_LDO2_VSEL_MASK, | |
a540f682 MB |
1126 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1127 | .enable_mask = WM8350_LDO2_ENA, | |
da09155a MB |
1128 | .owner = THIS_MODULE, |
1129 | }, | |
1130 | { | |
1131 | .name = "LDO3", | |
1132 | .id = WM8350_LDO_3, | |
1133 | .ops = &wm8350_ldo_ops, | |
1134 | .irq = WM8350_IRQ_UV_LDO3, | |
1135 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1136 | .n_voltages = WM8350_LDO3_VSEL_MASK + 1, |
b4ec87ae MB |
1137 | .vsel_reg = WM8350_LDO3_CONTROL, |
1138 | .vsel_mask = WM8350_LDO3_VSEL_MASK, | |
a540f682 MB |
1139 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1140 | .enable_mask = WM8350_LDO3_ENA, | |
da09155a MB |
1141 | .owner = THIS_MODULE, |
1142 | }, | |
1143 | { | |
1144 | .name = "LDO4", | |
1145 | .id = WM8350_LDO_4, | |
1146 | .ops = &wm8350_ldo_ops, | |
1147 | .irq = WM8350_IRQ_UV_LDO4, | |
1148 | .type = REGULATOR_VOLTAGE, | |
221a7c7c | 1149 | .n_voltages = WM8350_LDO4_VSEL_MASK + 1, |
b4ec87ae MB |
1150 | .vsel_reg = WM8350_LDO4_CONTROL, |
1151 | .vsel_mask = WM8350_LDO4_VSEL_MASK, | |
a540f682 MB |
1152 | .enable_reg = WM8350_DCDC_LDO_REQUESTED, |
1153 | .enable_mask = WM8350_LDO4_ENA, | |
da09155a MB |
1154 | .owner = THIS_MODULE, |
1155 | }, | |
1156 | { | |
1157 | .name = "ISINKA", | |
1158 | .id = WM8350_ISINK_A, | |
1159 | .ops = &wm8350_isink_ops, | |
1160 | .irq = WM8350_IRQ_CS1, | |
1161 | .type = REGULATOR_CURRENT, | |
1162 | .owner = THIS_MODULE, | |
1163 | }, | |
1164 | { | |
1165 | .name = "ISINKB", | |
1166 | .id = WM8350_ISINK_B, | |
1167 | .ops = &wm8350_isink_ops, | |
1168 | .irq = WM8350_IRQ_CS2, | |
1169 | .type = REGULATOR_CURRENT, | |
1170 | .owner = THIS_MODULE, | |
1171 | }, | |
1172 | }; | |
1173 | ||
5a65edbc | 1174 | static irqreturn_t pmic_uv_handler(int irq, void *data) |
da09155a MB |
1175 | { |
1176 | struct regulator_dev *rdev = (struct regulator_dev *)data; | |
5a65edbc | 1177 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); |
da09155a | 1178 | |
b136fb44 | 1179 | mutex_lock(&rdev->mutex); |
da09155a MB |
1180 | if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2) |
1181 | regulator_notifier_call_chain(rdev, | |
1182 | REGULATOR_EVENT_REGULATION_OUT, | |
1183 | wm8350); | |
1184 | else | |
1185 | regulator_notifier_call_chain(rdev, | |
1186 | REGULATOR_EVENT_UNDER_VOLTAGE, | |
1187 | wm8350); | |
b136fb44 | 1188 | mutex_unlock(&rdev->mutex); |
5a65edbc MB |
1189 | |
1190 | return IRQ_HANDLED; | |
da09155a MB |
1191 | } |
1192 | ||
1193 | static int wm8350_regulator_probe(struct platform_device *pdev) | |
1194 | { | |
1195 | struct wm8350 *wm8350 = dev_get_drvdata(&pdev->dev); | |
c172708d | 1196 | struct regulator_config config = { }; |
da09155a MB |
1197 | struct regulator_dev *rdev; |
1198 | int ret; | |
1199 | u16 val; | |
1200 | ||
1201 | if (pdev->id < WM8350_DCDC_1 || pdev->id > WM8350_ISINK_B) | |
1202 | return -ENODEV; | |
1203 | ||
1204 | /* do any regulatior specific init */ | |
1205 | switch (pdev->id) { | |
1206 | case WM8350_DCDC_1: | |
1207 | val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER); | |
1208 | wm8350->pmic.dcdc1_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
1209 | break; | |
1210 | case WM8350_DCDC_3: | |
1211 | val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER); | |
1212 | wm8350->pmic.dcdc3_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
1213 | break; | |
1214 | case WM8350_DCDC_4: | |
1215 | val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER); | |
1216 | wm8350->pmic.dcdc4_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
1217 | break; | |
1218 | case WM8350_DCDC_6: | |
1219 | val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER); | |
1220 | wm8350->pmic.dcdc6_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; | |
1221 | break; | |
1222 | } | |
1223 | ||
c172708d MB |
1224 | config.dev = &pdev->dev; |
1225 | config.init_data = pdev->dev.platform_data; | |
1226 | config.driver_data = dev_get_drvdata(&pdev->dev); | |
b4ec87ae | 1227 | config.regmap = wm8350->regmap; |
c172708d | 1228 | |
da09155a | 1229 | /* register regulator */ |
c172708d | 1230 | rdev = regulator_register(&wm8350_reg[pdev->id], &config); |
da09155a MB |
1231 | if (IS_ERR(rdev)) { |
1232 | dev_err(&pdev->dev, "failed to register %s\n", | |
1233 | wm8350_reg[pdev->id].name); | |
1234 | return PTR_ERR(rdev); | |
1235 | } | |
1236 | ||
1237 | /* register regulator IRQ */ | |
1238 | ret = wm8350_register_irq(wm8350, wm8350_reg[pdev->id].irq, | |
5a65edbc | 1239 | pmic_uv_handler, 0, "UV", rdev); |
da09155a MB |
1240 | if (ret < 0) { |
1241 | regulator_unregister(rdev); | |
1242 | dev_err(&pdev->dev, "failed to register regulator %s IRQ\n", | |
1243 | wm8350_reg[pdev->id].name); | |
1244 | return ret; | |
1245 | } | |
1246 | ||
da09155a MB |
1247 | return 0; |
1248 | } | |
1249 | ||
1250 | static int wm8350_regulator_remove(struct platform_device *pdev) | |
1251 | { | |
1252 | struct regulator_dev *rdev = platform_get_drvdata(pdev); | |
1253 | struct wm8350 *wm8350 = rdev_get_drvdata(rdev); | |
1254 | ||
f99344fc | 1255 | wm8350_free_irq(wm8350, wm8350_reg[pdev->id].irq, rdev); |
da09155a MB |
1256 | |
1257 | regulator_unregister(rdev); | |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | int wm8350_register_regulator(struct wm8350 *wm8350, int reg, | |
1263 | struct regulator_init_data *initdata) | |
1264 | { | |
1265 | struct platform_device *pdev; | |
1266 | int ret; | |
4dee4d44 RK |
1267 | if (reg < 0 || reg >= NUM_WM8350_REGULATORS) |
1268 | return -EINVAL; | |
da09155a MB |
1269 | |
1270 | if (wm8350->pmic.pdev[reg]) | |
1271 | return -EBUSY; | |
1272 | ||
645524a9 MB |
1273 | if (reg >= WM8350_DCDC_1 && reg <= WM8350_DCDC_6 && |
1274 | reg > wm8350->pmic.max_dcdc) | |
1275 | return -ENODEV; | |
1276 | if (reg >= WM8350_ISINK_A && reg <= WM8350_ISINK_B && | |
1277 | reg > wm8350->pmic.max_isink) | |
1278 | return -ENODEV; | |
1279 | ||
da09155a MB |
1280 | pdev = platform_device_alloc("wm8350-regulator", reg); |
1281 | if (!pdev) | |
1282 | return -ENOMEM; | |
1283 | ||
1284 | wm8350->pmic.pdev[reg] = pdev; | |
1285 | ||
1286 | initdata->driver_data = wm8350; | |
1287 | ||
1288 | pdev->dev.platform_data = initdata; | |
1289 | pdev->dev.parent = wm8350->dev; | |
1290 | platform_set_drvdata(pdev, wm8350); | |
1291 | ||
1292 | ret = platform_device_add(pdev); | |
1293 | ||
1294 | if (ret != 0) { | |
1295 | dev_err(wm8350->dev, "Failed to register regulator %d: %d\n", | |
1296 | reg, ret); | |
e9a1c512 | 1297 | platform_device_put(pdev); |
da09155a MB |
1298 | wm8350->pmic.pdev[reg] = NULL; |
1299 | } | |
1300 | ||
1301 | return ret; | |
1302 | } | |
1303 | EXPORT_SYMBOL_GPL(wm8350_register_regulator); | |
1304 | ||
0081e802 MB |
1305 | /** |
1306 | * wm8350_register_led - Register a WM8350 LED output | |
1307 | * | |
1308 | * @param wm8350 The WM8350 device to configure. | |
1309 | * @param lednum LED device index to create. | |
1310 | * @param dcdc The DCDC to use for the LED. | |
1311 | * @param isink The ISINK to use for the LED. | |
1312 | * @param pdata Configuration for the LED. | |
1313 | * | |
1314 | * The WM8350 supports the use of an ISINK together with a DCDC to | |
1315 | * provide a power-efficient LED driver. This function registers the | |
1316 | * regulators and instantiates the platform device for a LED. The | |
1317 | * operating modes for the LED regulators must be configured using | |
1318 | * wm8350_isink_set_flash(), wm8350_dcdc25_set_mode() and | |
1319 | * wm8350_dcdc_set_slot() prior to calling this function. | |
1320 | */ | |
1321 | int wm8350_register_led(struct wm8350 *wm8350, int lednum, int dcdc, int isink, | |
1322 | struct wm8350_led_platform_data *pdata) | |
1323 | { | |
1324 | struct wm8350_led *led; | |
1325 | struct platform_device *pdev; | |
1326 | int ret; | |
1327 | ||
8dd2c9e3 | 1328 | if (lednum >= ARRAY_SIZE(wm8350->pmic.led) || lednum < 0) { |
0081e802 MB |
1329 | dev_err(wm8350->dev, "Invalid LED index %d\n", lednum); |
1330 | return -ENODEV; | |
1331 | } | |
1332 | ||
1333 | led = &wm8350->pmic.led[lednum]; | |
1334 | ||
1335 | if (led->pdev) { | |
1336 | dev_err(wm8350->dev, "LED %d already allocated\n", lednum); | |
1337 | return -EINVAL; | |
1338 | } | |
1339 | ||
1340 | pdev = platform_device_alloc("wm8350-led", lednum); | |
1341 | if (pdev == NULL) { | |
1342 | dev_err(wm8350->dev, "Failed to allocate LED %d\n", lednum); | |
1343 | return -ENOMEM; | |
1344 | } | |
1345 | ||
34ce8d07 | 1346 | led->isink_consumer.dev_name = dev_name(&pdev->dev); |
0081e802 MB |
1347 | led->isink_consumer.supply = "led_isink"; |
1348 | led->isink_init.num_consumer_supplies = 1; | |
1349 | led->isink_init.consumer_supplies = &led->isink_consumer; | |
1350 | led->isink_init.constraints.min_uA = 0; | |
1351 | led->isink_init.constraints.max_uA = pdata->max_uA; | |
a2fad9bf MB |
1352 | led->isink_init.constraints.valid_ops_mask |
1353 | = REGULATOR_CHANGE_CURRENT | REGULATOR_CHANGE_STATUS; | |
0081e802 MB |
1354 | led->isink_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL; |
1355 | ret = wm8350_register_regulator(wm8350, isink, &led->isink_init); | |
1356 | if (ret != 0) { | |
1357 | platform_device_put(pdev); | |
1358 | return ret; | |
1359 | } | |
1360 | ||
34ce8d07 | 1361 | led->dcdc_consumer.dev_name = dev_name(&pdev->dev); |
0081e802 MB |
1362 | led->dcdc_consumer.supply = "led_vcc"; |
1363 | led->dcdc_init.num_consumer_supplies = 1; | |
1364 | led->dcdc_init.consumer_supplies = &led->dcdc_consumer; | |
1365 | led->dcdc_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL; | |
a2fad9bf | 1366 | led->dcdc_init.constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS; |
0081e802 MB |
1367 | ret = wm8350_register_regulator(wm8350, dcdc, &led->dcdc_init); |
1368 | if (ret != 0) { | |
1369 | platform_device_put(pdev); | |
1370 | return ret; | |
1371 | } | |
1372 | ||
1373 | switch (isink) { | |
1374 | case WM8350_ISINK_A: | |
1375 | wm8350->pmic.isink_A_dcdc = dcdc; | |
1376 | break; | |
1377 | case WM8350_ISINK_B: | |
1378 | wm8350->pmic.isink_B_dcdc = dcdc; | |
1379 | break; | |
1380 | } | |
1381 | ||
1382 | pdev->dev.platform_data = pdata; | |
1383 | pdev->dev.parent = wm8350->dev; | |
1384 | ret = platform_device_add(pdev); | |
1385 | if (ret != 0) { | |
1386 | dev_err(wm8350->dev, "Failed to register LED %d: %d\n", | |
1387 | lednum, ret); | |
1388 | platform_device_put(pdev); | |
1389 | return ret; | |
1390 | } | |
1391 | ||
1392 | led->pdev = pdev; | |
1393 | ||
1394 | return 0; | |
1395 | } | |
1396 | EXPORT_SYMBOL_GPL(wm8350_register_led); | |
1397 | ||
da09155a MB |
1398 | static struct platform_driver wm8350_regulator_driver = { |
1399 | .probe = wm8350_regulator_probe, | |
1400 | .remove = wm8350_regulator_remove, | |
1401 | .driver = { | |
1402 | .name = "wm8350-regulator", | |
1403 | }, | |
1404 | }; | |
1405 | ||
1406 | static int __init wm8350_regulator_init(void) | |
1407 | { | |
1408 | return platform_driver_register(&wm8350_regulator_driver); | |
1409 | } | |
1410 | subsys_initcall(wm8350_regulator_init); | |
1411 | ||
1412 | static void __exit wm8350_regulator_exit(void) | |
1413 | { | |
1414 | platform_driver_unregister(&wm8350_regulator_driver); | |
1415 | } | |
1416 | module_exit(wm8350_regulator_exit); | |
1417 | ||
1418 | /* Module information */ | |
1419 | MODULE_AUTHOR("Liam Girdwood"); | |
1420 | MODULE_DESCRIPTION("WM8350 voltage and current regulator driver"); | |
1421 | MODULE_LICENSE("GPL"); | |
38c53c89 | 1422 | MODULE_ALIAS("platform:wm8350-regulator"); |