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Merge tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / drivers / mfd / da9062-core.c
blob8d913375152df8f60a071b35e571ee21f393e552
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
24 #define DA9062_IRQ_LOW 0
25 #define DA9062_IRQ_HIGH 1
26
27 static struct regmap_irq da9061_irqs[] = {
28 /* EVENT A */
29 [DA9061_IRQ_ONKEY] = {
30 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
31 .mask = DA9062AA_M_NONKEY_MASK,
32 },
33 [DA9061_IRQ_WDG_WARN] = {
34 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
35 .mask = DA9062AA_M_WDG_WARN_MASK,
36 },
37 [DA9061_IRQ_SEQ_RDY] = {
38 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
39 .mask = DA9062AA_M_SEQ_RDY_MASK,
40 },
41 /* EVENT B */
42 [DA9061_IRQ_TEMP] = {
43 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
44 .mask = DA9062AA_M_TEMP_MASK,
45 },
46 [DA9061_IRQ_LDO_LIM] = {
47 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
48 .mask = DA9062AA_M_LDO_LIM_MASK,
49 },
50 [DA9061_IRQ_DVC_RDY] = {
51 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
52 .mask = DA9062AA_M_DVC_RDY_MASK,
53 },
54 [DA9061_IRQ_VDD_WARN] = {
55 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
56 .mask = DA9062AA_M_VDD_WARN_MASK,
57 },
58 /* EVENT C */
59 [DA9061_IRQ_GPI0] = {
60 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
61 .mask = DA9062AA_M_GPI0_MASK,
62 },
63 [DA9061_IRQ_GPI1] = {
64 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
65 .mask = DA9062AA_M_GPI1_MASK,
66 },
67 [DA9061_IRQ_GPI2] = {
68 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
69 .mask = DA9062AA_M_GPI2_MASK,
70 },
71 [DA9061_IRQ_GPI3] = {
72 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
73 .mask = DA9062AA_M_GPI3_MASK,
74 },
75 [DA9061_IRQ_GPI4] = {
76 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
77 .mask = DA9062AA_M_GPI4_MASK,
78 },
79 };
80
81 static struct regmap_irq_chip da9061_irq_chip = {
82 .name = "da9061-irq",
83 .irqs = da9061_irqs,
84 .num_irqs = DA9061_NUM_IRQ,
85 .num_regs = 3,
86 .status_base = DA9062AA_EVENT_A,
87 .mask_base = DA9062AA_IRQ_MASK_A,
88 .ack_base = DA9062AA_EVENT_A,
89 };
90
91 static struct regmap_irq da9062_irqs[] = {
92 /* EVENT A */
93 [DA9062_IRQ_ONKEY] = {
94 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
95 .mask = DA9062AA_M_NONKEY_MASK,
96 },
97 [DA9062_IRQ_ALARM] = {
98 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
99 .mask = DA9062AA_M_ALARM_MASK,
100 },
101 [DA9062_IRQ_TICK] = {
102 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
103 .mask = DA9062AA_M_TICK_MASK,
104 },
105 [DA9062_IRQ_WDG_WARN] = {
106 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
107 .mask = DA9062AA_M_WDG_WARN_MASK,
108 },
109 [DA9062_IRQ_SEQ_RDY] = {
110 .reg_offset = DA9062_REG_EVENT_A_OFFSET,
111 .mask = DA9062AA_M_SEQ_RDY_MASK,
112 },
113 /* EVENT B */
114 [DA9062_IRQ_TEMP] = {
115 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
116 .mask = DA9062AA_M_TEMP_MASK,
117 },
118 [DA9062_IRQ_LDO_LIM] = {
119 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
120 .mask = DA9062AA_M_LDO_LIM_MASK,
121 },
122 [DA9062_IRQ_DVC_RDY] = {
123 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
124 .mask = DA9062AA_M_DVC_RDY_MASK,
125 },
126 [DA9062_IRQ_VDD_WARN] = {
127 .reg_offset = DA9062_REG_EVENT_B_OFFSET,
128 .mask = DA9062AA_M_VDD_WARN_MASK,
129 },
130 /* EVENT C */
131 [DA9062_IRQ_GPI0] = {
132 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
133 .mask = DA9062AA_M_GPI0_MASK,
134 },
135 [DA9062_IRQ_GPI1] = {
136 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
137 .mask = DA9062AA_M_GPI1_MASK,
138 },
139 [DA9062_IRQ_GPI2] = {
140 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
141 .mask = DA9062AA_M_GPI2_MASK,
142 },
143 [DA9062_IRQ_GPI3] = {
144 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
145 .mask = DA9062AA_M_GPI3_MASK,
146 },
147 [DA9062_IRQ_GPI4] = {
148 .reg_offset = DA9062_REG_EVENT_C_OFFSET,
149 .mask = DA9062AA_M_GPI4_MASK,
150 },
151 };
152
153 static struct regmap_irq_chip da9062_irq_chip = {
154 .name = "da9062-irq",
155 .irqs = da9062_irqs,
156 .num_irqs = DA9062_NUM_IRQ,
157 .num_regs = 3,
158 .status_base = DA9062AA_EVENT_A,
159 .mask_base = DA9062AA_IRQ_MASK_A,
160 .ack_base = DA9062AA_EVENT_A,
161 };
162
163 static const struct resource da9061_core_resources[] = {
164 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
165 };
166
167 static const struct resource da9061_regulators_resources[] = {
168 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
169 };
170
171 static const struct resource da9061_thermal_resources[] = {
172 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
173 };
174
175 static const struct resource da9061_wdt_resources[] = {
176 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
177 };
178
179 static const struct resource da9061_onkey_resources[] = {
180 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
181 };
182
183 static const struct mfd_cell da9061_devs[] = {
184 {
185 .name = "da9061-core",
186 .num_resources = ARRAY_SIZE(da9061_core_resources),
187 .resources = da9061_core_resources,
188 },
189 {
190 .name = "da9062-regulators",
191 .num_resources = ARRAY_SIZE(da9061_regulators_resources),
192 .resources = da9061_regulators_resources,
193 },
194 {
195 .name = "da9061-watchdog",
196 .num_resources = ARRAY_SIZE(da9061_wdt_resources),
197 .resources = da9061_wdt_resources,
198 .of_compatible = "dlg,da9061-watchdog",
199 },
200 {
201 .name = "da9061-thermal",
202 .num_resources = ARRAY_SIZE(da9061_thermal_resources),
203 .resources = da9061_thermal_resources,
204 .of_compatible = "dlg,da9061-thermal",
205 },
206 {
207 .name = "da9061-onkey",
208 .num_resources = ARRAY_SIZE(da9061_onkey_resources),
209 .resources = da9061_onkey_resources,
210 .of_compatible = "dlg,da9061-onkey",
211 },
212 };
213
214 static const struct resource da9062_core_resources[] = {
215 DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
216 };
217
218 static const struct resource da9062_regulators_resources[] = {
219 DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
220 };
221
222 static const struct resource da9062_thermal_resources[] = {
223 DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
224 };
225
226 static const struct resource da9062_wdt_resources[] = {
227 DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
228 };
229
230 static const struct resource da9062_rtc_resources[] = {
231 DEFINE_RES_NAMED(DA9062_IRQ_ALARM, 1, "ALARM", IORESOURCE_IRQ),
232 DEFINE_RES_NAMED(DA9062_IRQ_TICK, 1, "TICK", IORESOURCE_IRQ),
233 };
234
235 static const struct resource da9062_onkey_resources[] = {
236 DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
237 };
238
239 static const struct resource da9062_gpio_resources[] = {
240 DEFINE_RES_NAMED(DA9062_IRQ_GPI0, 1, "GPI0", IORESOURCE_IRQ),
241 DEFINE_RES_NAMED(DA9062_IRQ_GPI1, 1, "GPI1", IORESOURCE_IRQ),
242 DEFINE_RES_NAMED(DA9062_IRQ_GPI2, 1, "GPI2", IORESOURCE_IRQ),
243 DEFINE_RES_NAMED(DA9062_IRQ_GPI3, 1, "GPI3", IORESOURCE_IRQ),
244 DEFINE_RES_NAMED(DA9062_IRQ_GPI4, 1, "GPI4", IORESOURCE_IRQ),
245 };
246
247 static const struct mfd_cell da9062_devs[] = {
248 {
249 .name = "da9062-core",
250 .num_resources = ARRAY_SIZE(da9062_core_resources),
251 .resources = da9062_core_resources,
252 },
253 {
254 .name = "da9062-regulators",
255 .num_resources = ARRAY_SIZE(da9062_regulators_resources),
256 .resources = da9062_regulators_resources,
257 },
258 {
259 .name = "da9062-watchdog",
260 .num_resources = ARRAY_SIZE(da9062_wdt_resources),
261 .resources = da9062_wdt_resources,
262 .of_compatible = "dlg,da9062-watchdog",
263 },
264 {
265 .name = "da9062-thermal",
266 .num_resources = ARRAY_SIZE(da9062_thermal_resources),
267 .resources = da9062_thermal_resources,
268 .of_compatible = "dlg,da9062-thermal",
269 },
270 {
271 .name = "da9062-rtc",
272 .num_resources = ARRAY_SIZE(da9062_rtc_resources),
273 .resources = da9062_rtc_resources,
274 .of_compatible = "dlg,da9062-rtc",
275 },
276 {
277 .name = "da9062-onkey",
278 .num_resources = ARRAY_SIZE(da9062_onkey_resources),
279 .resources = da9062_onkey_resources,
280 .of_compatible = "dlg,da9062-onkey",
281 },
282 {
283 .name = "da9062-gpio",
284 .num_resources = ARRAY_SIZE(da9062_gpio_resources),
285 .resources = da9062_gpio_resources,
286 .of_compatible = "dlg,da9062-gpio",
287 },
288 };
289
290 static int da9062_clear_fault_log(struct da9062 *chip)
291 {
292 int ret;
293 int fault_log;
294
295 ret = regmap_read(chip->regmap, DA9062AA_FAULT_LOG, &fault_log);
296 if (ret < 0)
297 return ret;
298
299 if (fault_log) {
300 if (fault_log & DA9062AA_TWD_ERROR_MASK)
301 dev_dbg(chip->dev, "Fault log entry detected: TWD_ERROR\n");
302 if (fault_log & DA9062AA_POR_MASK)
303 dev_dbg(chip->dev, "Fault log entry detected: POR\n");
304 if (fault_log & DA9062AA_VDD_FAULT_MASK)
305 dev_dbg(chip->dev, "Fault log entry detected: VDD_FAULT\n");
306 if (fault_log & DA9062AA_VDD_START_MASK)
307 dev_dbg(chip->dev, "Fault log entry detected: VDD_START\n");
308 if (fault_log & DA9062AA_TEMP_CRIT_MASK)
309 dev_dbg(chip->dev, "Fault log entry detected: TEMP_CRIT\n");
310 if (fault_log & DA9062AA_KEY_RESET_MASK)
311 dev_dbg(chip->dev, "Fault log entry detected: KEY_RESET\n");
312 if (fault_log & DA9062AA_NSHUTDOWN_MASK)
313 dev_dbg(chip->dev, "Fault log entry detected: NSHUTDOWN\n");
314 if (fault_log & DA9062AA_WAIT_SHUT_MASK)
315 dev_dbg(chip->dev, "Fault log entry detected: WAIT_SHUT\n");
316
317 ret = regmap_write(chip->regmap, DA9062AA_FAULT_LOG,
318 fault_log);
319 }
320
321 return ret;
322 }
323
324 static int da9062_get_device_type(struct da9062 *chip)
325 {
326 int device_id, variant_id, variant_mrc, variant_vrc;
327 char *type;
328 int ret;
329
330 ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
331 if (ret < 0) {
332 dev_err(chip->dev, "Cannot read chip ID.\n");
333 return -EIO;
334 }
335 if (device_id != DA9062_PMIC_DEVICE_ID) {
336 dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
337 return -ENODEV;
338 }
339
340 ret = regmap_read(chip->regmap, DA9062AA_VARIANT_ID, &variant_id);
341 if (ret < 0) {
342 dev_err(chip->dev, "Cannot read chip variant id.\n");
343 return -EIO;
344 }
345
346 variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
347
348 switch (variant_vrc) {
349 case DA9062_PMIC_VARIANT_VRC_DA9061:
350 type = "DA9061";
351 break;
352 case DA9062_PMIC_VARIANT_VRC_DA9062:
353 type = "DA9062";
354 break;
355 default:
356 type = "Unknown";
357 break;
358 }
359
360 dev_info(chip->dev,
361 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
362 device_id, variant_id, type);
363
364 variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
365
366 if (variant_mrc < DA9062_PMIC_VARIANT_MRC_AA) {
367 dev_err(chip->dev,
368 "Cannot support variant MRC: 0x%02X\n", variant_mrc);
369 return -ENODEV;
370 }
371
372 return ret;
373 }
374
375 static u32 da9062_configure_irq_type(struct da9062 *chip, int irq, u32 *trigger)
376 {
377 u32 irq_type = 0;
378 struct irq_data *irq_data = irq_get_irq_data(irq);
379
380 if (!irq_data) {
381 dev_err(chip->dev, "Invalid IRQ: %d\n", irq);
382 return -EINVAL;
383 }
384 *trigger = irqd_get_trigger_type(irq_data);
385
386 switch (*trigger) {
387 case IRQ_TYPE_LEVEL_HIGH:
388 irq_type = DA9062_IRQ_HIGH;
389 break;
390 case IRQ_TYPE_LEVEL_LOW:
391 irq_type = DA9062_IRQ_LOW;
392 break;
393 default:
394 dev_warn(chip->dev, "Unsupported IRQ type: %d\n", *trigger);
395 return -EINVAL;
396 }
397 return regmap_update_bits(chip->regmap, DA9062AA_CONFIG_A,
398 DA9062AA_IRQ_TYPE_MASK,
399 irq_type << DA9062AA_IRQ_TYPE_SHIFT);
400 }
401
402 static const struct regmap_range da9061_aa_readable_ranges[] = {
403 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
404 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
405 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
406 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
407 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
408 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
409 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
410 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
411 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
412 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
413 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
414 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
415 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
416 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
417 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
418 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
419 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
420 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
421 regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A),
422 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
423 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
424 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
425 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
426 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
427 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
428 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
429 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
430 };
431
432 static const struct regmap_range da9061_aa_writeable_ranges[] = {
433 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
434 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
435 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
436 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
437 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4),
438 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
439 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
440 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
441 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
442 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
443 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
444 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
445 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT),
446 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C),
447 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG),
448 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
449 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
450 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
451 regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A),
452 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
453 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
454 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
455 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
456 };
457
458 static const struct regmap_range da9061_aa_volatile_ranges[] = {
459 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
460 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
461 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
462 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
463 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT),
464 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
465 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
466 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
467 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
468 };
469
470 static const struct regmap_access_table da9061_aa_readable_table = {
471 .yes_ranges = da9061_aa_readable_ranges,
472 .n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
473 };
474
475 static const struct regmap_access_table da9061_aa_writeable_table = {
476 .yes_ranges = da9061_aa_writeable_ranges,
477 .n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
478 };
479
480 static const struct regmap_access_table da9061_aa_volatile_table = {
481 .yes_ranges = da9061_aa_volatile_ranges,
482 .n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
483 };
484
485 static const struct regmap_range_cfg da9061_range_cfg[] = {
486 {
487 .range_min = DA9062AA_PAGE_CON,
488 .range_max = DA9062AA_CONFIG_ID,
489 .selector_reg = DA9062AA_PAGE_CON,
490 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
491 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
492 .window_start = 0,
493 .window_len = 256,
494 }
495 };
496
497 static struct regmap_config da9061_regmap_config = {
498 .reg_bits = 8,
499 .val_bits = 8,
500 .ranges = da9061_range_cfg,
501 .num_ranges = ARRAY_SIZE(da9061_range_cfg),
502 .max_register = DA9062AA_CONFIG_ID,
503 .cache_type = REGCACHE_RBTREE,
504 .rd_table = &da9061_aa_readable_table,
505 .wr_table = &da9061_aa_writeable_table,
506 .volatile_table = &da9061_aa_volatile_table,
507 };
508
509 static const struct regmap_range da9062_aa_readable_ranges[] = {
510 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
511 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
512 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
513 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
514 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
515 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
516 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
517 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
518 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
519 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
520 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
521 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
522 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
523 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
524 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
525 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
526 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
527 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
528 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
529 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
530 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E),
531 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K),
532 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M),
533 regmap_reg_range(DA9062AA_TRIM_CLDR, DA9062AA_GP_ID_19),
534 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID),
535 };
536
537 static const struct regmap_range da9062_aa_writeable_ranges[] = {
538 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON),
539 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C),
540 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C),
541 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4),
542 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT),
543 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
544 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
545 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
546 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_ALARM_Y),
547 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3),
548 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15),
549 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31),
550 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG),
551 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A),
552 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
553 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
554 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B),
555 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
556 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
557 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT),
558 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19),
559 };
560
561 static const struct regmap_range da9062_aa_volatile_ranges[] = {
562 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
563 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
564 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B),
565 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F),
566 regmap_reg_range(DA9062AA_BUCK2_CONT, DA9062AA_BUCK4_CONT),
567 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT),
568 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT),
569 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1),
570 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
571 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
572 regmap_reg_range(DA9062AA_EN_32K, DA9062AA_EN_32K),
573 };
574
575 static const struct regmap_access_table da9062_aa_readable_table = {
576 .yes_ranges = da9062_aa_readable_ranges,
577 .n_yes_ranges = ARRAY_SIZE(da9062_aa_readable_ranges),
578 };
579
580 static const struct regmap_access_table da9062_aa_writeable_table = {
581 .yes_ranges = da9062_aa_writeable_ranges,
582 .n_yes_ranges = ARRAY_SIZE(da9062_aa_writeable_ranges),
583 };
584
585 static const struct regmap_access_table da9062_aa_volatile_table = {
586 .yes_ranges = da9062_aa_volatile_ranges,
587 .n_yes_ranges = ARRAY_SIZE(da9062_aa_volatile_ranges),
588 };
589
590 static const struct regmap_range_cfg da9062_range_cfg[] = {
591 {
592 .range_min = DA9062AA_PAGE_CON,
593 .range_max = DA9062AA_CONFIG_ID,
594 .selector_reg = DA9062AA_PAGE_CON,
595 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
596 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
597 .window_start = 0,
598 .window_len = 256,
599 }
600 };
601
602 static struct regmap_config da9062_regmap_config = {
603 .reg_bits = 8,
604 .val_bits = 8,
605 .ranges = da9062_range_cfg,
606 .num_ranges = ARRAY_SIZE(da9062_range_cfg),
607 .max_register = DA9062AA_CONFIG_ID,
608 .cache_type = REGCACHE_RBTREE,
609 .rd_table = &da9062_aa_readable_table,
610 .wr_table = &da9062_aa_writeable_table,
611 .volatile_table = &da9062_aa_volatile_table,
612 };
613
614 static const struct of_device_id da9062_dt_ids[] = {
615 { .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
616 { .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
617 { }
618 };
619 MODULE_DEVICE_TABLE(of, da9062_dt_ids);
620
621 static int da9062_i2c_probe(struct i2c_client *i2c,
622 const struct i2c_device_id *id)
623 {
624 struct da9062 *chip;
625 const struct of_device_id *match;
626 unsigned int irq_base;
627 const struct mfd_cell *cell;
628 const struct regmap_irq_chip *irq_chip;
629 const struct regmap_config *config;
630 int cell_num;
631 u32 trigger_type = 0;
632 int ret;
633
634 chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
635 if (!chip)
636 return -ENOMEM;
637
638 if (i2c->dev.of_node) {
639 match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
640 if (!match)
641 return -EINVAL;
642
643 chip->chip_type = (uintptr_t)match->data;
644 } else {
645 chip->chip_type = id->driver_data;
646 }
647
648 i2c_set_clientdata(i2c, chip);
649 chip->dev = &i2c->dev;
650
651 if (!i2c->irq) {
652 dev_err(chip->dev, "No IRQ configured\n");
653 return -EINVAL;
654 }
655
656 switch (chip->chip_type) {
657 case COMPAT_TYPE_DA9061:
658 cell = da9061_devs;
659 cell_num = ARRAY_SIZE(da9061_devs);
660 irq_chip = &da9061_irq_chip;
661 config = &da9061_regmap_config;
662 break;
663 case COMPAT_TYPE_DA9062:
664 cell = da9062_devs;
665 cell_num = ARRAY_SIZE(da9062_devs);
666 irq_chip = &da9062_irq_chip;
667 config = &da9062_regmap_config;
668 break;
669 default:
670 dev_err(chip->dev, "Unrecognised chip type\n");
671 return -ENODEV;
672 }
673
674 chip->regmap = devm_regmap_init_i2c(i2c, config);
675 if (IS_ERR(chip->regmap)) {
676 ret = PTR_ERR(chip->regmap);
677 dev_err(chip->dev, "Failed to allocate register map: %d\n",
678 ret);
679 return ret;
680 }
681
682 ret = da9062_clear_fault_log(chip);
683 if (ret < 0)
684 dev_warn(chip->dev, "Cannot clear fault log\n");
685
686 ret = da9062_get_device_type(chip);
687 if (ret)
688 return ret;
689
690 ret = da9062_configure_irq_type(chip, i2c->irq, &trigger_type);
691 if (ret < 0) {
692 dev_err(chip->dev, "Failed to configure IRQ type\n");
693 return ret;
694 }
695
696 ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
697 trigger_type | IRQF_SHARED | IRQF_ONESHOT,
698 -1, irq_chip, &chip->regmap_irq);
699 if (ret) {
700 dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
701 i2c->irq, ret);
702 return ret;
703 }
704
705 irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
706
707 ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
708 cell_num, NULL, irq_base,
709 NULL);
710 if (ret) {
711 dev_err(chip->dev, "Cannot register child devices\n");
712 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
713 return ret;
714 }
715
716 return ret;
717 }
718
719 static int da9062_i2c_remove(struct i2c_client *i2c)
720 {
721 struct da9062 *chip = i2c_get_clientdata(i2c);
722
723 mfd_remove_devices(chip->dev);
724 regmap_del_irq_chip(i2c->irq, chip->regmap_irq);
725
726 return 0;
727 }
728
729 static const struct i2c_device_id da9062_i2c_id[] = {
730 { "da9061", COMPAT_TYPE_DA9061 },
731 { "da9062", COMPAT_TYPE_DA9062 },
732 { },
733 };
734 MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
735
736 static struct i2c_driver da9062_i2c_driver = {
737 .driver = {
738 .name = "da9062",
739 .of_match_table = da9062_dt_ids,
740 },
741 .probe = da9062_i2c_probe,
742 .remove = da9062_i2c_remove,
743 .id_table = da9062_i2c_id,
744 };
745
746 module_i2c_driver(da9062_i2c_driver);
747
748 MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
749 MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
750 MODULE_LICENSE("GPL");
Linux with added FPC-III support