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btrfs: Don't clear SGID when inheriting ACLs
[linux/fpc-iii.git] / drivers / mfd / da9062-core.c
blob7f5e8be0a9ea42f9b7079cae2a5322ef2ed816cf
1 /*
2 * Core, IRQ and I2C device driver for DA9061 and DA9062 PMICs
3 * Copyright (C) 2015-2017 Dialog Semiconductor
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/device.h>
20 #include <linux/interrupt.h>
21 #include <linux/regmap.h>
22 #include <linux/irq.h>
23 #include <linux/mfd/core.h>
24 #include <linux/i2c.h>
25 #include <linux/mfd/da9062/core.h>
26 #include <linux/mfd/da9062/registers.h>
27 #include <linux/regulator/of_regulator.h>
28
29 #define DA9062_REG_EVENT_A_OFFSET 0
30 #define DA9062_REG_EVENT_B_OFFSET 1
31 #define DA9062_REG_EVENT_C_OFFSET 2
32
33 static struct regmap_irq da9061_irqs[] = {
34 /* EVENT A */
35 [DA9061_IRQ_ONKEY] = {
36 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
37 .mask = DA9062AA_M_NONKEY_MASK,
38 },
39 [DA9061_IRQ_WDG_WARN] = {
40 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
41 .mask = DA9062AA_M_WDG_WARN_MASK,
42 },
43 [DA9061_IRQ_SEQ_RDY] = {
44 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
45 .mask = DA9062AA_M_SEQ_RDY_MASK,
46 },
47 /* EVENT B */
48 [DA9061_IRQ_TEMP] = {
49 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
50 .mask = DA9062AA_M_TEMP_MASK,
51 },
52 [DA9061_IRQ_LDO_LIM] = {
53 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
54 .mask = DA9062AA_M_LDO_LIM_MASK,
55 },
56 [DA9061_IRQ_DVC_RDY] = {
57 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
58 .mask = DA9062AA_M_DVC_RDY_MASK,
59 },
60 [DA9061_IRQ_VDD_WARN] = {
61 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
62 .mask = DA9062AA_M_VDD_WARN_MASK,
63 },
64 /* EVENT C */
65 [DA9061_IRQ_GPI0] = {
66 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
67 .mask = DA9062AA_M_GPI0_MASK,
68 },
69 [DA9061_IRQ_GPI1] = {
70 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
71 .mask = DA9062AA_M_GPI1_MASK,
72 },
73 [DA9061_IRQ_GPI2] = {
74 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
75 .mask = DA9062AA_M_GPI2_MASK,
76 },
77 [DA9061_IRQ_GPI3] = {
78 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
79 .mask = DA9062AA_M_GPI3_MASK,
80 },
81 [DA9061_IRQ_GPI4] = {
82 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
83 .mask = DA9062AA_M_GPI4_MASK,
84 },
85 };
86
87 static struct regmap_irq_chip da9061_irq_chip = {
88 .name = "da9061-irq",
89 .irqs = da9061_irqs,
90 .num_irqs = DA9061_NUM_IRQ,
91 .num_regs = 3,
92 .status_base = DA9062AA_EVENT_A,
93 .mask_base = DA9062AA_IRQ_MASK_A,
94 .ack_base = DA9062AA_EVENT_A,
95 };
96
97 static struct regmap_irq da9062_irqs[] = {
98 /* EVENT A */
99 [DA9062_IRQ_ONKEY] = {
100 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
101 .mask = DA9062AA_M_NONKEY_MASK,
102 },
103 [DA9062_IRQ_ALARM] = {
104 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
105 .mask = DA9062AA_M_ALARM_MASK,
106 },
107 [DA9062_IRQ_TICK] = {
108 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
109 .mask = DA9062AA_M_TICK_MASK,
110 },
111 [DA9062_IRQ_WDG_WARN] = {
112 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
113 .mask = DA9062AA_M_WDG_WARN_MASK,
114 },
115 [DA9062_IRQ_SEQ_RDY] = {
116 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
117 .mask = DA9062AA_M_SEQ_RDY_MASK,
118 },
119 /* EVENT B */
120 [DA9062_IRQ_TEMP] = {
121 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
122 .mask = DA9062AA_M_TEMP_MASK,
123 },
124 [DA9062_IRQ_LDO_LIM] = {
125 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
126 .mask = DA9062AA_M_LDO_LIM_MASK,
127 },
128 [DA9062_IRQ_DVC_RDY] = {
129 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
130 .mask = DA9062AA_M_DVC_RDY_MASK,
131 },
132 [DA9062_IRQ_VDD_WARN] = {
133 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
134 .mask = DA9062AA_M_VDD_WARN_MASK,
135 },
136 /* EVENT C */
137 [DA9062_IRQ_GPI0] = {
138 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
139 .mask = DA9062AA_M_GPI0_MASK,
140 },
141 [DA9062_IRQ_GPI1] = {
142 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
143 .mask = DA9062AA_M_GPI1_MASK,
144 },
145 [DA9062_IRQ_GPI2] = {
146 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
147 .mask = DA9062AA_M_GPI2_MASK,
148 },
149 [DA9062_IRQ_GPI3] = {
150 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
151 .mask = DA9062AA_M_GPI3_MASK,
152 },
153 [DA9062_IRQ_GPI4] = {
154 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
155 .mask = DA9062AA_M_GPI4_MASK,
156 },
157 };
158
159 static struct regmap_irq_chip da9062_irq_chip = {
160 .name = "da9062-irq",
161 .irqs = da9062_irqs,
162 .num_irqs = DA9062_NUM_IRQ,
163 .num_regs = 3,
164 .status_base = DA9062AA_EVENT_A,
165 .mask_base = DA9062AA_IRQ_MASK_A,
166 .ack_base = DA9062AA_EVENT_A,
167 };
168
169 static struct resource da9061_core_resources[] = {
170 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
171 };
172
173 static struct resource da9061_regulators_resources[] = {
174 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
175 };
176
177 static struct resource da9061_thermal_resources[] = {
178 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
179 };
180
181 static struct resource da9061_wdt_resources[] = {
182 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
183 };
184
185 static struct resource da9061_onkey_resources[] = {
186 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
187 };
188
189 static const struct mfd_cell da9061_devs[] = {
190 {
191 .name = "da9061-core",
192 .num_resources = ARRAY_SIZE(da9061_core_resources),
193 .resources = da9061_core_resources,
194 },
195 {
196 .name = "da9062-regulators",
197 .num_resources = ARRAY_SIZE(da9061_regulators_resources),
198 .resources = da9061_regulators_resources,
199 },
200 {
201 .name = "da9061-watchdog",
202 .num_resources = ARRAY_SIZE(da9061_wdt_resources),
203 .resources = da9061_wdt_resources,
204 .of_compatible = "dlg,da9061-watchdog",
205 },
206 {
207 .name = "da9061-thermal",
208 .num_resources = ARRAY_SIZE(da9061_thermal_resources),
209 .resources = da9061_thermal_resources,
210 .of_compatible = "dlg,da9061-thermal",
211 },
212 {
213 .name = "da9061-onkey",
214 .num_resources = ARRAY_SIZE(da9061_onkey_resources),
215 .resources = da9061_onkey_resources,
216 .of_compatible = "dlg,da9061-onkey",
217 },
218 };
219
220 static struct resource da9062_core_resources[] = {
221 DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
222 };
223
224 static struct resource da9062_regulators_resources[] = {
225 DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
226 };
227
228 static struct resource da9062_thermal_resources[] = {
229 DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
230 };
231
232 static struct resource da9062_wdt_resources[] = {
233 DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
234 };
235
236 static struct resource da9062_rtc_resources[] = {
237 DEFINE_RES_NAMED(DA9062_IRQ_ALARM, 1, "ALARM", IORESOURCE_IRQ),
238 DEFINE_RES_NAMED(DA9062_IRQ_TICK, 1, "TICK", IORESOURCE_IRQ),
239 };
240
241 static struct resource da9062_onkey_resources[] = {
242 DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
243 };
244
245 static const struct mfd_cell da9062_devs[] = {
246 {
247 .name = "da9062-core",
248 .num_resources = ARRAY_SIZE(da9062_core_resources),
249 .resources = da9062_core_resources,
250 },
251 {
252 .name = "da9062-regulators",
253 .num_resources = ARRAY_SIZE(da9062_regulators_resources),
254 .resources = da9062_regulators_resources,
255 },
256 {
257 .name = "da9062-watchdog",
258 .num_resources = ARRAY_SIZE(da9062_wdt_resources),
259 .resources = da9062_wdt_resources,
260 .of_compatible = "dlg,da9062-wdt",
261 },
262 {
263 .name = "da9062-thermal",
264 .num_resources = ARRAY_SIZE(da9062_thermal_resources),
265 .resources = da9062_thermal_resources,
266 .of_compatible = "dlg,da9062-thermal",
267 },
268 {
269 .name = "da9062-rtc",
270 .num_resources = ARRAY_SIZE(da9062_rtc_resources),
271 .resources = da9062_rtc_resources,
272 .of_compatible = "dlg,da9062-rtc",
273 },
274 {
275 .name = "da9062-onkey",
276 .num_resources = ARRAY_SIZE(da9062_onkey_resources),
277 .resources = da9062_onkey_resources,
278 .of_compatible = "dlg,da9062-onkey",
279 },
280 };
281
282 static int da9062_clear_fault_log(struct da9062 *chip)
283 {
284 int ret;
285 int fault_log;
286
287 ret = regmap_read(chip->regmap, DA9062AA_FAULT_LOG, &fault_log);
288 if (ret < 0)
289 return ret;
290
291 if (fault_log) {
292 if (fault_log & DA9062AA_TWD_ERROR_MASK)
293 dev_dbg(chip->dev, "Fault log entry detected: TWD_ERROR\n");
294 if (fault_log & DA9062AA_POR_MASK)
295 dev_dbg(chip->dev, "Fault log entry detected: POR\n");
296 if (fault_log & DA9062AA_VDD_FAULT_MASK)
297 dev_dbg(chip->dev, "Fault log entry detected: VDD_FAULT\n");
298 if (fault_log & DA9062AA_VDD_START_MASK)
299 dev_dbg(chip->dev, "Fault log entry detected: VDD_START\n");
300 if (fault_log & DA9062AA_TEMP_CRIT_MASK)
301 dev_dbg(chip->dev, "Fault log entry detected: TEMP_CRIT\n");
302 if (fault_log & DA9062AA_KEY_RESET_MASK)
303 dev_dbg(chip->dev, "Fault log entry detected: KEY_RESET\n");
304 if (fault_log & DA9062AA_NSHUTDOWN_MASK)
305 dev_dbg(chip->dev, "Fault log entry detected: NSHUTDOWN\n");
306 if (fault_log & DA9062AA_WAIT_SHUT_MASK)
307 dev_dbg(chip->dev, "Fault log entry detected: WAIT_SHUT\n");
308
309 ret = regmap_write(chip->regmap, DA9062AA_FAULT_LOG,
310 fault_log);
311 }
312
313 return ret;
314 }
315
316 static int da9062_get_device_type(struct da9062 *chip)
317 {
318 int device_id, variant_id, variant_mrc, variant_vrc;
319 char *type;
320 int ret;
321
322 ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
323 if (ret < 0) {
324 dev_err(chip->dev, "Cannot read chip ID.\n");
325 return -EIO;
326 }
327 if (device_id != DA9062_PMIC_DEVICE_ID) {
328 dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
329 return -ENODEV;
330 }
331
332 ret = regmap_read(chip->regmap, DA9062AA_VARIANT_ID, &variant_id);
333 if (ret < 0) {
334 dev_err(chip->dev, "Cannot read chip variant id.\n");
335 return -EIO;
336 }
337
338 variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
339
340 switch (variant_vrc) {
341 case DA9062_PMIC_VARIANT_VRC_DA9061:
342 type = "DA9061";
343 break;
344 case DA9062_PMIC_VARIANT_VRC_DA9062:
345 type = "DA9062";
346 break;
347 default:
348 type = "Unknown";
349 break;
350 }
351
352 dev_info(chip->dev,
353 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
354 device_id, variant_id, type);
355
356 variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
357
358 if (variant_mrc < DA9062_PMIC_VARIANT_MRC_AA) {
359 dev_err(chip->dev,
360 "Cannot support variant MRC: 0x%02X\n", variant_mrc);
361 return -ENODEV;
362 }
363
364 return ret;
365 }
366
367 static const struct regmap_range da9061_aa_readable_ranges[] = {
368 {
369 .range_min = DA9062AA_PAGE_CON,
370 .range_max = DA9062AA_STATUS_B,
371 }, {
372 .range_min = DA9062AA_STATUS_D,
373 .range_max = DA9062AA_EVENT_C,
374 }, {
375 .range_min = DA9062AA_IRQ_MASK_A,
376 .range_max = DA9062AA_IRQ_MASK_C,
377 }, {
378 .range_min = DA9062AA_CONTROL_A,
379 .range_max = DA9062AA_GPIO_4,
380 }, {
381 .range_min = DA9062AA_GPIO_WKUP_MODE,
382 .range_max = DA9062AA_GPIO_OUT3_4,
383 }, {
384 .range_min = DA9062AA_BUCK1_CONT,
385 .range_max = DA9062AA_BUCK4_CONT,
386 }, {
387 .range_min = DA9062AA_BUCK3_CONT,
388 .range_max = DA9062AA_BUCK3_CONT,
389 }, {
390 .range_min = DA9062AA_LDO1_CONT,
391 .range_max = DA9062AA_LDO4_CONT,
392 }, {
393 .range_min = DA9062AA_DVC_1,
394 .range_max = DA9062AA_DVC_1,
395 }, {
396 .range_min = DA9062AA_SEQ,
397 .range_max = DA9062AA_ID_4_3,
398 }, {
399 .range_min = DA9062AA_ID_12_11,
400 .range_max = DA9062AA_ID_16_15,
401 }, {
402 .range_min = DA9062AA_ID_22_21,
403 .range_max = DA9062AA_ID_32_31,
404 }, {
405 .range_min = DA9062AA_SEQ_A,
406 .range_max = DA9062AA_WAIT,
407 }, {
408 .range_min = DA9062AA_RESET,
409 .range_max = DA9062AA_BUCK_ILIM_C,
410 }, {
411 .range_min = DA9062AA_BUCK1_CFG,
412 .range_max = DA9062AA_BUCK3_CFG,
413 }, {
414 .range_min = DA9062AA_VBUCK1_A,
415 .range_max = DA9062AA_VBUCK4_A,
416 }, {
417 .range_min = DA9062AA_VBUCK3_A,
418 .range_max = DA9062AA_VBUCK3_A,
419 }, {
420 .range_min = DA9062AA_VLDO1_A,
421 .range_max = DA9062AA_VLDO4_A,
422 }, {
423 .range_min = DA9062AA_VBUCK1_B,
424 .range_max = DA9062AA_VBUCK4_B,
425 }, {
426 .range_min = DA9062AA_VBUCK3_B,
427 .range_max = DA9062AA_VBUCK3_B,
428 }, {
429 .range_min = DA9062AA_VLDO1_B,
430 .range_max = DA9062AA_VLDO4_B,
431 }, {
432 .range_min = DA9062AA_BBAT_CONT,
433 .range_max = DA9062AA_BBAT_CONT,
434 }, {
435 .range_min = DA9062AA_INTERFACE,
436 .range_max = DA9062AA_CONFIG_E,
437 }, {
438 .range_min = DA9062AA_CONFIG_G,
439 .range_max = DA9062AA_CONFIG_K,
440 }, {
441 .range_min = DA9062AA_CONFIG_M,
442 .range_max = DA9062AA_CONFIG_M,
443 }, {
444 .range_min = DA9062AA_GP_ID_0,
445 .range_max = DA9062AA_GP_ID_19,
446 }, {
447 .range_min = DA9062AA_DEVICE_ID,
448 .range_max = DA9062AA_CONFIG_ID,
449 },
450 };
451
452 static const struct regmap_range da9061_aa_writeable_ranges[] = {
453 {
454 .range_min = DA9062AA_PAGE_CON,
455 .range_max = DA9062AA_PAGE_CON,
456 }, {
457 .range_min = DA9062AA_FAULT_LOG,
458 .range_max = DA9062AA_EVENT_C,
459 }, {
460 .range_min = DA9062AA_IRQ_MASK_A,
461 .range_max = DA9062AA_IRQ_MASK_C,
462 }, {
463 .range_min = DA9062AA_CONTROL_A,
464 .range_max = DA9062AA_GPIO_4,
465 }, {
466 .range_min = DA9062AA_GPIO_WKUP_MODE,
467 .range_max = DA9062AA_GPIO_OUT3_4,
468 }, {
469 .range_min = DA9062AA_BUCK1_CONT,
470 .range_max = DA9062AA_BUCK4_CONT,
471 }, {
472 .range_min = DA9062AA_BUCK3_CONT,
473 .range_max = DA9062AA_BUCK3_CONT,
474 }, {
475 .range_min = DA9062AA_LDO1_CONT,
476 .range_max = DA9062AA_LDO4_CONT,
477 }, {
478 .range_min = DA9062AA_DVC_1,
479 .range_max = DA9062AA_DVC_1,
480 }, {
481 .range_min = DA9062AA_SEQ,
482 .range_max = DA9062AA_ID_4_3,
483 }, {
484 .range_min = DA9062AA_ID_12_11,
485 .range_max = DA9062AA_ID_16_15,
486 }, {
487 .range_min = DA9062AA_ID_22_21,
488 .range_max = DA9062AA_ID_32_31,
489 }, {
490 .range_min = DA9062AA_SEQ_A,
491 .range_max = DA9062AA_WAIT,
492 }, {
493 .range_min = DA9062AA_RESET,
494 .range_max = DA9062AA_BUCK_ILIM_C,
495 }, {
496 .range_min = DA9062AA_BUCK1_CFG,
497 .range_max = DA9062AA_BUCK3_CFG,
498 }, {
499 .range_min = DA9062AA_VBUCK1_A,
500 .range_max = DA9062AA_VBUCK4_A,
501 }, {
502 .range_min = DA9062AA_VBUCK3_A,
503 .range_max = DA9062AA_VBUCK3_A,
504 }, {
505 .range_min = DA9062AA_VLDO1_A,
506 .range_max = DA9062AA_VLDO4_A,
507 }, {
508 .range_min = DA9062AA_VBUCK1_B,
509 .range_max = DA9062AA_VBUCK4_B,
510 }, {
511 .range_min = DA9062AA_VBUCK3_B,
512 .range_max = DA9062AA_VBUCK3_B,
513 }, {
514 .range_min = DA9062AA_VLDO1_B,
515 .range_max = DA9062AA_VLDO4_B,
516 }, {
517 .range_min = DA9062AA_BBAT_CONT,
518 .range_max = DA9062AA_BBAT_CONT,
519 }, {
520 .range_min = DA9062AA_GP_ID_0,
521 .range_max = DA9062AA_GP_ID_19,
522 },
523 };
524
525 static const struct regmap_range da9061_aa_volatile_ranges[] = {
526 {
527 .range_min = DA9062AA_PAGE_CON,
528 .range_max = DA9062AA_STATUS_B,
529 }, {
530 .range_min = DA9062AA_STATUS_D,
531 .range_max = DA9062AA_EVENT_C,
532 }, {
533 .range_min = DA9062AA_CONTROL_A,
534 .range_max = DA9062AA_CONTROL_B,
535 }, {
536 .range_min = DA9062AA_CONTROL_E,
537 .range_max = DA9062AA_CONTROL_F,
538 }, {
539 .range_min = DA9062AA_BUCK1_CONT,
540 .range_max = DA9062AA_BUCK4_CONT,
541 }, {
542 .range_min = DA9062AA_BUCK3_CONT,
543 .range_max = DA9062AA_BUCK3_CONT,
544 }, {
545 .range_min = DA9062AA_LDO1_CONT,
546 .range_max = DA9062AA_LDO4_CONT,
547 }, {
548 .range_min = DA9062AA_DVC_1,
549 .range_max = DA9062AA_DVC_1,
550 }, {
551 .range_min = DA9062AA_SEQ,
552 .range_max = DA9062AA_SEQ,
553 },
554 };
555
556 static const struct regmap_access_table da9061_aa_readable_table = {
557 .yes_ranges = da9061_aa_readable_ranges,
558 .n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
559 };
560
561 static const struct regmap_access_table da9061_aa_writeable_table = {
562 .yes_ranges = da9061_aa_writeable_ranges,
563 .n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
564 };
565
566 static const struct regmap_access_table da9061_aa_volatile_table = {
567 .yes_ranges = da9061_aa_volatile_ranges,
568 .n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
569 };
570
571 static const struct regmap_range_cfg da9061_range_cfg[] = {
572 {
573 .range_min = DA9062AA_PAGE_CON,
574 .range_max = DA9062AA_CONFIG_ID,
575 .selector_reg = DA9062AA_PAGE_CON,
576 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
577 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
578 .window_start = 0,
579 .window_len = 256,
580 }
581 };
582
583 static struct regmap_config da9061_regmap_config = {
584 .reg_bits = 8,
585 .val_bits = 8,
586 .ranges = da9061_range_cfg,
587 .num_ranges = ARRAY_SIZE(da9061_range_cfg),
588 .max_register = DA9062AA_CONFIG_ID,
589 .cache_type = REGCACHE_RBTREE,
590 .rd_table = &da9061_aa_readable_table,
591 .wr_table = &da9061_aa_writeable_table,
592 .volatile_table = &da9061_aa_volatile_table,
593 };
594
595 static const struct regmap_range da9062_aa_readable_ranges[] = {
596 {
597 .range_min = DA9062AA_PAGE_CON,
598 .range_max = DA9062AA_STATUS_B,
599 }, {
600 .range_min = DA9062AA_STATUS_D,
601 .range_max = DA9062AA_EVENT_C,
602 }, {
603 .range_min = DA9062AA_IRQ_MASK_A,
604 .range_max = DA9062AA_IRQ_MASK_C,
605 }, {
606 .range_min = DA9062AA_CONTROL_A,
607 .range_max = DA9062AA_GPIO_4,
608 }, {
609 .range_min = DA9062AA_GPIO_WKUP_MODE,
610 .range_max = DA9062AA_BUCK4_CONT,
611 }, {
612 .range_min = DA9062AA_BUCK3_CONT,
613 .range_max = DA9062AA_BUCK3_CONT,
614 }, {
615 .range_min = DA9062AA_LDO1_CONT,
616 .range_max = DA9062AA_LDO4_CONT,
617 }, {
618 .range_min = DA9062AA_DVC_1,
619 .range_max = DA9062AA_DVC_1,
620 }, {
621 .range_min = DA9062AA_COUNT_S,
622 .range_max = DA9062AA_SECOND_D,
623 }, {
624 .range_min = DA9062AA_SEQ,
625 .range_max = DA9062AA_ID_4_3,
626 }, {
627 .range_min = DA9062AA_ID_12_11,
628 .range_max = DA9062AA_ID_16_15,
629 }, {
630 .range_min = DA9062AA_ID_22_21,
631 .range_max = DA9062AA_ID_32_31,
632 }, {
633 .range_min = DA9062AA_SEQ_A,
634 .range_max = DA9062AA_BUCK3_CFG,
635 }, {
636 .range_min = DA9062AA_VBUCK2_A,
637 .range_max = DA9062AA_VBUCK4_A,
638 }, {
639 .range_min = DA9062AA_VBUCK3_A,
640 .range_max = DA9062AA_VBUCK3_A,
641 }, {
642 .range_min = DA9062AA_VLDO1_A,
643 .range_max = DA9062AA_VLDO4_A,
644 }, {
645 .range_min = DA9062AA_VBUCK2_B,
646 .range_max = DA9062AA_VBUCK4_B,
647 }, {
648 .range_min = DA9062AA_VBUCK3_B,
649 .range_max = DA9062AA_VBUCK3_B,
650 }, {
651 .range_min = DA9062AA_VLDO1_B,
652 .range_max = DA9062AA_VLDO4_B,
653 }, {
654 .range_min = DA9062AA_BBAT_CONT,
655 .range_max = DA9062AA_BBAT_CONT,
656 }, {
657 .range_min = DA9062AA_INTERFACE,
658 .range_max = DA9062AA_CONFIG_E,
659 }, {
660 .range_min = DA9062AA_CONFIG_G,
661 .range_max = DA9062AA_CONFIG_K,
662 }, {
663 .range_min = DA9062AA_CONFIG_M,
664 .range_max = DA9062AA_CONFIG_M,
665 }, {
666 .range_min = DA9062AA_TRIM_CLDR,
667 .range_max = DA9062AA_GP_ID_19,
668 }, {
669 .range_min = DA9062AA_DEVICE_ID,
670 .range_max = DA9062AA_CONFIG_ID,
671 },
672 };
673
674 static const struct regmap_range da9062_aa_writeable_ranges[] = {
675 {
676 .range_min = DA9062AA_PAGE_CON,
677 .range_max = DA9062AA_PAGE_CON,
678 }, {
679 .range_min = DA9062AA_FAULT_LOG,
680 .range_max = DA9062AA_EVENT_C,
681 }, {
682 .range_min = DA9062AA_IRQ_MASK_A,
683 .range_max = DA9062AA_IRQ_MASK_C,
684 }, {
685 .range_min = DA9062AA_CONTROL_A,
686 .range_max = DA9062AA_GPIO_4,
687 }, {
688 .range_min = DA9062AA_GPIO_WKUP_MODE,
689 .range_max = DA9062AA_BUCK4_CONT,
690 }, {
691 .range_min = DA9062AA_BUCK3_CONT,
692 .range_max = DA9062AA_BUCK3_CONT,
693 }, {
694 .range_min = DA9062AA_LDO1_CONT,
695 .range_max = DA9062AA_LDO4_CONT,
696 }, {
697 .range_min = DA9062AA_DVC_1,
698 .range_max = DA9062AA_DVC_1,
699 }, {
700 .range_min = DA9062AA_COUNT_S,
701 .range_max = DA9062AA_ALARM_Y,
702 }, {
703 .range_min = DA9062AA_SEQ,
704 .range_max = DA9062AA_ID_4_3,
705 }, {
706 .range_min = DA9062AA_ID_12_11,
707 .range_max = DA9062AA_ID_16_15,
708 }, {
709 .range_min = DA9062AA_ID_22_21,
710 .range_max = DA9062AA_ID_32_31,
711 }, {
712 .range_min = DA9062AA_SEQ_A,
713 .range_max = DA9062AA_BUCK3_CFG,
714 }, {
715 .range_min = DA9062AA_VBUCK2_A,
716 .range_max = DA9062AA_VBUCK4_A,
717 }, {
718 .range_min = DA9062AA_VBUCK3_A,
719 .range_max = DA9062AA_VBUCK3_A,
720 }, {
721 .range_min = DA9062AA_VLDO1_A,
722 .range_max = DA9062AA_VLDO4_A,
723 }, {
724 .range_min = DA9062AA_VBUCK2_B,
725 .range_max = DA9062AA_VBUCK4_B,
726 }, {
727 .range_min = DA9062AA_VBUCK3_B,
728 .range_max = DA9062AA_VBUCK3_B,
729 }, {
730 .range_min = DA9062AA_VLDO1_B,
731 .range_max = DA9062AA_VLDO4_B,
732 }, {
733 .range_min = DA9062AA_BBAT_CONT,
734 .range_max = DA9062AA_BBAT_CONT,
735 }, {
736 .range_min = DA9062AA_GP_ID_0,
737 .range_max = DA9062AA_GP_ID_19,
738 },
739 };
740
741 static const struct regmap_range da9062_aa_volatile_ranges[] = {
742 {
743 .range_min = DA9062AA_PAGE_CON,
744 .range_max = DA9062AA_STATUS_B,
745 }, {
746 .range_min = DA9062AA_STATUS_D,
747 .range_max = DA9062AA_EVENT_C,
748 }, {
749 .range_min = DA9062AA_CONTROL_A,
750 .range_max = DA9062AA_CONTROL_B,
751 }, {
752 .range_min = DA9062AA_CONTROL_E,
753 .range_max = DA9062AA_CONTROL_F,
754 }, {
755 .range_min = DA9062AA_BUCK2_CONT,
756 .range_max = DA9062AA_BUCK4_CONT,
757 }, {
758 .range_min = DA9062AA_BUCK3_CONT,
759 .range_max = DA9062AA_BUCK3_CONT,
760 }, {
761 .range_min = DA9062AA_LDO1_CONT,
762 .range_max = DA9062AA_LDO4_CONT,
763 }, {
764 .range_min = DA9062AA_DVC_1,
765 .range_max = DA9062AA_DVC_1,
766 }, {
767 .range_min = DA9062AA_COUNT_S,
768 .range_max = DA9062AA_SECOND_D,
769 }, {
770 .range_min = DA9062AA_SEQ,
771 .range_max = DA9062AA_SEQ,
772 }, {
773 .range_min = DA9062AA_EN_32K,
774 .range_max = DA9062AA_EN_32K,
775 },
776 };
777
778 static const struct regmap_access_table da9062_aa_readable_table = {
779 .yes_ranges = da9062_aa_readable_ranges,
780 .n_yes_ranges = ARRAY_SIZE(da9062_aa_readable_ranges),
781 };
782
783 static const struct regmap_access_table da9062_aa_writeable_table = {
784 .yes_ranges = da9062_aa_writeable_ranges,
785 .n_yes_ranges = ARRAY_SIZE(da9062_aa_writeable_ranges),
786 };
787
788 static const struct regmap_access_table da9062_aa_volatile_table = {
789 .yes_ranges = da9062_aa_volatile_ranges,
790 .n_yes_ranges = ARRAY_SIZE(da9062_aa_volatile_ranges),
791 };
792
793 static const struct regmap_range_cfg da9062_range_cfg[] = {
794 {
795 .range_min = DA9062AA_PAGE_CON,
796 .range_max = DA9062AA_CONFIG_ID,
797 .selector_reg = DA9062AA_PAGE_CON,
798 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
799 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
800 .window_start = 0,
801 .window_len = 256,
802 }
803 };
804
805 static struct regmap_config da9062_regmap_config = {
806 .reg_bits = 8,
807 .val_bits = 8,
808 .ranges = da9062_range_cfg,
809 .num_ranges = ARRAY_SIZE(da9062_range_cfg),
810 .max_register = DA9062AA_CONFIG_ID,
811 .cache_type = REGCACHE_RBTREE,
812 .rd_table = &da9062_aa_readable_table,
813 .wr_table = &da9062_aa_writeable_table,
814 .volatile_table = &da9062_aa_volatile_table,
815 };
816
817 static const struct of_device_id da9062_dt_ids[] = {
818 { .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
819 { .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
820 { }
821 };
822 MODULE_DEVICE_TABLE(of, da9062_dt_ids);
823
824 static int da9062_i2c_probe(struct i2c_client *i2c,
825 const struct i2c_device_id *id)
826 {
827 struct da9062 *chip;
828 const struct of_device_id *match;
829 unsigned int irq_base;
830 const struct mfd_cell *cell;
831 const struct regmap_irq_chip *irq_chip;
832 const struct regmap_config *config;
833 int cell_num;
834 int ret;
835
836 chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
837 if (!chip)
838 return -ENOMEM;
839
840 if (i2c->dev.of_node) {
841 match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
842 if (!match)
843 return -EINVAL;
844
845 chip->chip_type = (uintptr_t)match->data;
846 } else {
847 chip->chip_type = id->driver_data;
848 }
849
850 i2c_set_clientdata(i2c, chip);
851 chip->dev = &i2c->dev;
852
853 if (!i2c->irq) {
854 dev_err(chip->dev, "No IRQ configured\n");
855 return -EINVAL;
856 }
857
858 switch (chip->chip_type) {
859 case COMPAT_TYPE_DA9061:
860 cell = da9061_devs;
861 cell_num = ARRAY_SIZE(da9061_devs);
862 irq_chip = &da9061_irq_chip;
863 config = &da9061_regmap_config;
864 break;
865 case COMPAT_TYPE_DA9062:
866 cell = da9062_devs;
867 cell_num = ARRAY_SIZE(da9062_devs);
868 irq_chip = &da9062_irq_chip;
869 config = &da9062_regmap_config;
870 break;
871 default:
872 dev_err(chip->dev, "Unrecognised chip type\n");
873 return -ENODEV;
874 }
875
876 chip->regmap = devm_regmap_init_i2c(i2c, config);
877 if (IS_ERR(chip->regmap)) {
878 ret = PTR_ERR(chip->regmap);
879 dev_err(chip->dev, "Failed to allocate register map: %d\n",
880 ret);
881 return ret;
882 }
883
884 ret = da9062_clear_fault_log(chip);
885 if (ret < 0)
886 dev_warn(chip->dev, "Cannot clear fault log\n");
887
888 ret = da9062_get_device_type(chip);
889 if (ret)
890 return ret;
891
892 ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
893 IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
894 -1, irq_chip,
895 &chip->regmap_irq);
896 if (ret) {
897 dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
898 i2c->irq, ret);
899 return ret;
900 }
901
902 irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
903
904 ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
905 cell_num, NULL, irq_base,
906 NULL);
907 if (ret) {
908 dev_err(chip->dev, "Cannot register child devices\n");
909 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
910 return ret;
911 }
912
913 return ret;
914 }
915
916 static int da9062_i2c_remove(struct i2c_client *i2c)
917 {
918 struct da9062 *chip = i2c_get_clientdata(i2c);
919
920 mfd_remove_devices(chip->dev);
921 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
922
923 return 0;
924 }
925
926 static const struct i2c_device_id da9062_i2c_id[] = {
927 { "da9061", COMPAT_TYPE_DA9061 },
928 { "da9062", COMPAT_TYPE_DA9062 },
929 { },
930 };
931 MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
932
933 static struct i2c_driver da9062_i2c_driver = {
934 .driver = {
935 .name = "da9062",
936 .of_match_table = of_match_ptr(da9062_dt_ids),
937 },
938 .probe = da9062_i2c_probe,
939 .remove = da9062_i2c_remove,
940 .id_table = da9062_i2c_id,
941 };
942
943 module_i2c_driver(da9062_i2c_driver);
944
945 MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
946 MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
947 MODULE_LICENSE("GPL");
Linux with added FPC-III support