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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Core, IRQ and I2C device driver for DA9061 and DA9062 PMICs
4 * Copyright (C) 2015-2017 Dialog Semiconductor
5 */
6
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/init.h>
10#include <linux/device.h>
11#include <linux/interrupt.h>
12#include <linux/regmap.h>
13#include <linux/irq.h>
14#include <linux/mfd/core.h>
15#include <linux/i2c.h>
16#include <linux/mfd/da9062/core.h>
17#include <linux/mfd/da9062/registers.h>
18#include <linux/regulator/of_regulator.h>
19
20#define DA9062_REG_EVENT_A_OFFSET 0
21#define DA9062_REG_EVENT_B_OFFSET 1
22#define DA9062_REG_EVENT_C_OFFSET 2
23
24static struct regmap_irq da9061_irqs[] = {
25 /* EVENT A */
26 [DA9061_IRQ_ONKEY] = {
27 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
28 .mask = DA9062AA_M_NONKEY_MASK,
29 },
30 [DA9061_IRQ_WDG_WARN] = {
31 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
32 .mask = DA9062AA_M_WDG_WARN_MASK,
33 },
34 [DA9061_IRQ_SEQ_RDY] = {
35 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
36 .mask = DA9062AA_M_SEQ_RDY_MASK,
37 },
38 /* EVENT B */
39 [DA9061_IRQ_TEMP] = {
40 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
41 .mask = DA9062AA_M_TEMP_MASK,
42 },
43 [DA9061_IRQ_LDO_LIM] = {
44 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
45 .mask = DA9062AA_M_LDO_LIM_MASK,
46 },
47 [DA9061_IRQ_DVC_RDY] = {
48 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
49 .mask = DA9062AA_M_DVC_RDY_MASK,
50 },
51 [DA9061_IRQ_VDD_WARN] = {
52 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
53 .mask = DA9062AA_M_VDD_WARN_MASK,
54 },
55 /* EVENT C */
56 [DA9061_IRQ_GPI0] = {
57 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
58 .mask = DA9062AA_M_GPI0_MASK,
59 },
60 [DA9061_IRQ_GPI1] = {
61 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
62 .mask = DA9062AA_M_GPI1_MASK,
63 },
64 [DA9061_IRQ_GPI2] = {
65 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
66 .mask = DA9062AA_M_GPI2_MASK,
67 },
68 [DA9061_IRQ_GPI3] = {
69 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
70 .mask = DA9062AA_M_GPI3_MASK,
71 },
72 [DA9061_IRQ_GPI4] = {
73 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
74 .mask = DA9062AA_M_GPI4_MASK,
75 },
76};
77
78static struct regmap_irq_chip da9061_irq_chip = {
79 .name = "da9061-irq",
80 .irqs = da9061_irqs,
81 .num_irqs = DA9061_NUM_IRQ,
82 .num_regs = 3,
83 .status_base = DA9062AA_EVENT_A,
84 .mask_base = DA9062AA_IRQ_MASK_A,
85 .ack_base = DA9062AA_EVENT_A,
86};
87
88static struct regmap_irq da9062_irqs[] = {
89 /* EVENT A */
90 [DA9062_IRQ_ONKEY] = {
91 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
92 .mask = DA9062AA_M_NONKEY_MASK,
93 },
94 [DA9062_IRQ_ALARM] = {
95 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
96 .mask = DA9062AA_M_ALARM_MASK,
97 },
98 [DA9062_IRQ_TICK] = {
99 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
100 .mask = DA9062AA_M_TICK_MASK,
101 },
102 [DA9062_IRQ_WDG_WARN] = {
103 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
104 .mask = DA9062AA_M_WDG_WARN_MASK,
105 },
106 [DA9062_IRQ_SEQ_RDY] = {
107 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
108 .mask = DA9062AA_M_SEQ_RDY_MASK,
109 },
110 /* EVENT B */
111 [DA9062_IRQ_TEMP] = {
112 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
113 .mask = DA9062AA_M_TEMP_MASK,
114 },
115 [DA9062_IRQ_LDO_LIM] = {
116 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
117 .mask = DA9062AA_M_LDO_LIM_MASK,
118 },
119 [DA9062_IRQ_DVC_RDY] = {
120 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
121 .mask = DA9062AA_M_DVC_RDY_MASK,
122 },
123 [DA9062_IRQ_VDD_WARN] = {
124 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
125 .mask = DA9062AA_M_VDD_WARN_MASK,
126 },
127 /* EVENT C */
128 [DA9062_IRQ_GPI0] = {
129 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
130 .mask = DA9062AA_M_GPI0_MASK,
131 },
132 [DA9062_IRQ_GPI1] = {
133 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
134 .mask = DA9062AA_M_GPI1_MASK,
135 },
136 [DA9062_IRQ_GPI2] = {
137 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
138 .mask = DA9062AA_M_GPI2_MASK,
139 },
140 [DA9062_IRQ_GPI3] = {
141 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
142 .mask = DA9062AA_M_GPI3_MASK,
143 },
144 [DA9062_IRQ_GPI4] = {
145 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
146 .mask = DA9062AA_M_GPI4_MASK,
147 },
148};
149
150static struct regmap_irq_chip da9062_irq_chip = {
151 .name = "da9062-irq",
152 .irqs = da9062_irqs,
153 .num_irqs = DA9062_NUM_IRQ,
154 .num_regs = 3,
155 .status_base = DA9062AA_EVENT_A,
156 .mask_base = DA9062AA_IRQ_MASK_A,
157 .ack_base = DA9062AA_EVENT_A,
158};
159
160static struct resource da9061_core_resources[] = {
161 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
162};
163
164static struct resource da9061_regulators_resources[] = {
165 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
166};
167
168static struct resource da9061_thermal_resources[] = {
169 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
170};
171
172static struct resource da9061_wdt_resources[] = {
173 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
174};
175
176static struct resource da9061_onkey_resources[] = {
177 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
178};
179
180static const struct mfd_cell da9061_devs[] = {
181 {
182 .name = "da9061-core",
183 .num_resources = ARRAY_SIZE(da9061_core_resources),
184 .resources = da9061_core_resources,
185 },
186 {
187 .name = "da9062-regulators",
188 .num_resources = ARRAY_SIZE(da9061_regulators_resources),
189 .resources = da9061_regulators_resources,
190 },
191 {
192 .name = "da9061-watchdog",
193 .num_resources = ARRAY_SIZE(da9061_wdt_resources),
194 .resources = da9061_wdt_resources,
195 .of_compatible = "dlg,da9061-watchdog",
196 },
197 {
198 .name = "da9061-thermal",
199 .num_resources = ARRAY_SIZE(da9061_thermal_resources),
200 .resources = da9061_thermal_resources,
201 .of_compatible = "dlg,da9061-thermal",
202 },
203 {
204 .name = "da9061-onkey",
205 .num_resources = ARRAY_SIZE(da9061_onkey_resources),
206 .resources = da9061_onkey_resources,
207 .of_compatible = "dlg,da9061-onkey",
208 },
209};
210
211static struct resource da9062_core_resources[] = {
212 DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
213};
214
215static struct resource da9062_regulators_resources[] = {
216 DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
217};
218
219static struct resource da9062_thermal_resources[] = {
220 DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
221};
222
223static struct resource da9062_wdt_resources[] = {
224 DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
225};
226
227static struct resource da9062_rtc_resources[] = {
228 DEFINE_RES_NAMED(DA9062_IRQ_ALARM, 1, "ALARM", IORESOURCE_IRQ),
229 DEFINE_RES_NAMED(DA9062_IRQ_TICK, 1, "TICK", IORESOURCE_IRQ),
230};
231
232static struct resource da9062_onkey_resources[] = {
233 DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
234};
235
236static const struct mfd_cell da9062_devs[] = {
237 {
238 .name = "da9062-core",
239 .num_resources = ARRAY_SIZE(da9062_core_resources),
240 .resources = da9062_core_resources,
241 },
242 {
243 .name = "da9062-regulators",
244 .num_resources = ARRAY_SIZE(da9062_regulators_resources),
245 .resources = da9062_regulators_resources,
246 },
247 {
248 .name = "da9062-watchdog",
249 .num_resources = ARRAY_SIZE(da9062_wdt_resources),
250 .resources = da9062_wdt_resources,
251 .of_compatible = "dlg,da9062-wdt",
252 },
253 {
254 .name = "da9062-thermal",
255 .num_resources = ARRAY_SIZE(da9062_thermal_resources),
256 .resources = da9062_thermal_resources,
257 .of_compatible = "dlg,da9062-thermal",
258 },
259 {
260 .name = "da9062-rtc",
261 .num_resources = ARRAY_SIZE(da9062_rtc_resources),
262 .resources = da9062_rtc_resources,
263 .of_compatible = "dlg,da9062-rtc",
264 },
265 {
266 .name = "da9062-onkey",
267 .num_resources = ARRAY_SIZE(da9062_onkey_resources),
268 .resources = da9062_onkey_resources,
269 .of_compatible = "dlg,da9062-onkey",
270 },
271};
272
273static int da9062_clear_fault_log(struct da9062 *chip)
274{
275 int ret;
276 int fault_log;
277
278 ret = regmap_read(chip->regmap, DA9062AA_FAULT_LOG, &fault_log);
279 if (ret < 0)
280 return ret;
281
282 if (fault_log) {
283 if (fault_log & DA9062AA_TWD_ERROR_MASK)
284 dev_dbg(chip->dev, "Fault log entry detected: TWD_ERROR\n");
285 if (fault_log & DA9062AA_POR_MASK)
286 dev_dbg(chip->dev, "Fault log entry detected: POR\n");
287 if (fault_log & DA9062AA_VDD_FAULT_MASK)
288 dev_dbg(chip->dev, "Fault log entry detected: VDD_FAULT\n");
289 if (fault_log & DA9062AA_VDD_START_MASK)
290 dev_dbg(chip->dev, "Fault log entry detected: VDD_START\n");
291 if (fault_log & DA9062AA_TEMP_CRIT_MASK)
292 dev_dbg(chip->dev, "Fault log entry detected: TEMP_CRIT\n");
293 if (fault_log & DA9062AA_KEY_RESET_MASK)
294 dev_dbg(chip->dev, "Fault log entry detected: KEY_RESET\n");
295 if (fault_log & DA9062AA_NSHUTDOWN_MASK)
296 dev_dbg(chip->dev, "Fault log entry detected: NSHUTDOWN\n");
297 if (fault_log & DA9062AA_WAIT_SHUT_MASK)
298 dev_dbg(chip->dev, "Fault log entry detected: WAIT_SHUT\n");
299
300 ret = regmap_write(chip->regmap, DA9062AA_FAULT_LOG,
301 fault_log);
302 }
303
304 return ret;
305}
306
307static int da9062_get_device_type(struct da9062 *chip)
308{
309 int device_id, variant_id, variant_mrc, variant_vrc;
310 char *type;
311 int ret;
312
313 ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
314 if (ret < 0) {
315 dev_err(chip->dev, "Cannot read chip ID.\n");
316 return -EIO;
317 }
318 if (device_id != DA9062_PMIC_DEVICE_ID) {
319 dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
320 return -ENODEV;
321 }
322
323 ret = regmap_read(chip->regmap, DA9062AA_VARIANT_ID, &variant_id);
324 if (ret < 0) {
325 dev_err(chip->dev, "Cannot read chip variant id.\n");
326 return -EIO;
327 }
328
329 variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
330
331 switch (variant_vrc) {
332 case DA9062_PMIC_VARIANT_VRC_DA9061:
333 type = "DA9061";
334 break;
335 case DA9062_PMIC_VARIANT_VRC_DA9062:
336 type = "DA9062";
337 break;
338 default:
339 type = "Unknown";
340 break;
341 }
342
343 dev_info(chip->dev,
344 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
345 device_id, variant_id, type);
346
347 variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
348
349 if (variant_mrc < DA9062_PMIC_VARIANT_MRC_AA) {
350 dev_err(chip->dev,
351 "Cannot support variant MRC: 0x%02X\n", variant_mrc);
352 return -ENODEV;
353 }
354
355 return ret;
356}
357
358static const struct regmap_range da9061_aa_readable_ranges[] = {
359 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
360 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
361 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
362 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
363 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
364 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
365 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
366 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
367 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
368 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
369 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
370 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
371 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
372 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
373 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
374 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
375 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
376 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
377 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
378 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
379 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
380 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
381 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
382 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
383 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
384 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
385};
386
387static const struct regmap_range da9061_aa_writeable_ranges[] = {
388 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
389 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
390 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
391 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
392 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
393 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
394 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
395 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
396 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
397 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
398 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
399 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
400 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
401 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
402 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
403 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
404 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
405 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
406 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
407 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
408 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
409 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
410};
411
412static const struct regmap_range da9061_aa_volatile_ranges[] = {
413 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
414 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
415 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
416 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
417 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
418 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
419 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
420 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
421 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
422};
423
424static const struct regmap_access_table da9061_aa_readable_table = {
425 .yes_ranges = da9061_aa_readable_ranges,
426 .n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
427};
428
429static const struct regmap_access_table da9061_aa_writeable_table = {
430 .yes_ranges = da9061_aa_writeable_ranges,
431 .n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
432};
433
434static const struct regmap_access_table da9061_aa_volatile_table = {
435 .yes_ranges = da9061_aa_volatile_ranges,
436 .n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
437};
438
439static const struct regmap_range_cfg da9061_range_cfg[] = {
440 {
441 .range_min = DA9062AA_PAGE_CON,
442 .range_max = DA9062AA_CONFIG_ID,
443 .selector_reg = DA9062AA_PAGE_CON,
444 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
445 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
446 .window_start = 0,
447 .window_len = 256,
448 }
449};
450
451static struct regmap_config da9061_regmap_config = {
452 .reg_bits = 8,
453 .val_bits = 8,
454 .ranges = da9061_range_cfg,
455 .num_ranges = ARRAY_SIZE(da9061_range_cfg),
456 .max_register = DA9062AA_CONFIG_ID,
457 .cache_type = REGCACHE_RBTREE,
458 .rd_table = &da9061_aa_readable_table,
459 .wr_table = &da9061_aa_writeable_table,
460 .volatile_table = &da9061_aa_volatile_table,
461};
462
463static const struct regmap_range da9062_aa_readable_ranges[] = {
464 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
465 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
466 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
467 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
468 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
469 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
470 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
471 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
472 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
473 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
474 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
475 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
476 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
477 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
478 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
479 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
480 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
481 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
482 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
483 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
484 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
485 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
486 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
487 regmap_reg_range(DA9062AA_TRIM_CLDR, DA9062AA_GP_ID_19),
488 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
489};
490
491static const struct regmap_range da9062_aa_writeable_ranges[] = {
492 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
493 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
494 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
495 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
496 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
497 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
498 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
499 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
500 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_ALARM_Y),
501 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
502 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
503 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
504 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
505 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
506 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
507 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
508 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
509 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
510 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
511 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
512 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
513};
514
515static const struct regmap_range da9062_aa_volatile_ranges[] = {
516 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
517 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
518 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
519 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
520 regmap_reg_range(DA9062AA_BUCK2_CONT, DA9062AA_BUCK4_CONT),
521 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
522 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
523 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
524 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
525 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
526 regmap_reg_range(DA9062AA_EN_32K, DA9062AA_EN_32K),
527};
528
529static const struct regmap_access_table da9062_aa_readable_table = {
530 .yes_ranges = da9062_aa_readable_ranges,
531 .n_yes_ranges = ARRAY_SIZE(da9062_aa_readable_ranges),
532};
533
534static const struct regmap_access_table da9062_aa_writeable_table = {
535 .yes_ranges = da9062_aa_writeable_ranges,
536 .n_yes_ranges = ARRAY_SIZE(da9062_aa_writeable_ranges),
537};
538
539static const struct regmap_access_table da9062_aa_volatile_table = {
540 .yes_ranges = da9062_aa_volatile_ranges,
541 .n_yes_ranges = ARRAY_SIZE(da9062_aa_volatile_ranges),
542};
543
544static const struct regmap_range_cfg da9062_range_cfg[] = {
545 {
546 .range_min = DA9062AA_PAGE_CON,
547 .range_max = DA9062AA_CONFIG_ID,
548 .selector_reg = DA9062AA_PAGE_CON,
549 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
550 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
551 .window_start = 0,
552 .window_len = 256,
553 }
554};
555
556static struct regmap_config da9062_regmap_config = {
557 .reg_bits = 8,
558 .val_bits = 8,
559 .ranges = da9062_range_cfg,
560 .num_ranges = ARRAY_SIZE(da9062_range_cfg),
561 .max_register = DA9062AA_CONFIG_ID,
562 .cache_type = REGCACHE_RBTREE,
563 .rd_table = &da9062_aa_readable_table,
564 .wr_table = &da9062_aa_writeable_table,
565 .volatile_table = &da9062_aa_volatile_table,
566};
567
568static const struct of_device_id da9062_dt_ids[] = {
569 { .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
570 { .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
571 { }
572};
573MODULE_DEVICE_TABLE(of, da9062_dt_ids);
574
575static int da9062_i2c_probe(struct i2c_client *i2c,
576 const struct i2c_device_id *id)
577{
578 struct da9062 *chip;
579 const struct of_device_id *match;
580 unsigned int irq_base;
581 const struct mfd_cell *cell;
582 const struct regmap_irq_chip *irq_chip;
583 const struct regmap_config *config;
584 int cell_num;
585 int ret;
586
587 chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
588 if (!chip)
589 return -ENOMEM;
590
591 if (i2c->dev.of_node) {
592 match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
593 if (!match)
594 return -EINVAL;
595
596 chip->chip_type = (uintptr_t)match->data;
597 } else {
598 chip->chip_type = id->driver_data;
599 }
600
601 i2c_set_clientdata(i2c, chip);
602 chip->dev = &i2c->dev;
603
604 if (!i2c->irq) {
605 dev_err(chip->dev, "No IRQ configured\n");
606 return -EINVAL;
607 }
608
609 switch (chip->chip_type) {
610 case COMPAT_TYPE_DA9061:
611 cell = da9061_devs;
612 cell_num = ARRAY_SIZE(da9061_devs);
613 irq_chip = &da9061_irq_chip;
614 config = &da9061_regmap_config;
615 break;
616 case COMPAT_TYPE_DA9062:
617 cell = da9062_devs;
618 cell_num = ARRAY_SIZE(da9062_devs);
619 irq_chip = &da9062_irq_chip;
620 config = &da9062_regmap_config;
621 break;
622 default:
623 dev_err(chip->dev, "Unrecognised chip type\n");
624 return -ENODEV;
625 }
626
627 chip->regmap = devm_regmap_init_i2c(i2c, config);
628 if (IS_ERR(chip->regmap)) {
629 ret = PTR_ERR(chip->regmap);
630 dev_err(chip->dev, "Failed to allocate register map: %d\n",
631 ret);
632 return ret;
633 }
634
635 ret = da9062_clear_fault_log(chip);
636 if (ret < 0)
637 dev_warn(chip->dev, "Cannot clear fault log\n");
638
639 ret = da9062_get_device_type(chip);
640 if (ret)
641 return ret;
642
643 ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
644 IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
645 -1, irq_chip,
646 &chip->regmap_irq);
647 if (ret) {
648 dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
649 i2c->irq, ret);
650 return ret;
651 }
652
653 irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
654
655 ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
656 cell_num, NULL, irq_base,
657 NULL);
658 if (ret) {
659 dev_err(chip->dev, "Cannot register child devices\n");
660 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
661 return ret;
662 }
663
664 return ret;
665}
666
667static int da9062_i2c_remove(struct i2c_client *i2c)
668{
669 struct da9062 *chip = i2c_get_clientdata(i2c);
670
671 mfd_remove_devices(chip->dev);
672 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
673
674 return 0;
675}
676
677static const struct i2c_device_id da9062_i2c_id[] = {
678 { "da9061", COMPAT_TYPE_DA9061 },
679 { "da9062", COMPAT_TYPE_DA9062 },
680 { },
681};
682MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
683
684static struct i2c_driver da9062_i2c_driver = {
685 .driver = {
686 .name = "da9062",
687 .of_match_table = of_match_ptr(da9062_dt_ids),
688 },
689 .probe = da9062_i2c_probe,
690 .remove = da9062_i2c_remove,
691 .id_table = da9062_i2c_id,
692};
693
694module_i2c_driver(da9062_i2c_driver);
695
696MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
697MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
698MODULE_LICENSE("GPL");