1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Base driver for Marvell 88PM8607 |
4 | * |
5 | * Copyright (C) 2009 Marvell International Ltd. |
6 | * |
7 | * Author: Haojian Zhuang <haojian.zhuang@marvell.com> |
8 | */ |
9 | |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> |
12 | #include <linux/err.h> |
13 | #include <linux/i2c.h> |
14 | #include <linux/irq.h> |
15 | #include <linux/interrupt.h> |
16 | #include <linux/irqdomain.h> |
17 | #include <linux/of.h> |
18 | #include <linux/of_platform.h> |
19 | #include <linux/platform_device.h> |
20 | #include <linux/regmap.h> |
21 | #include <linux/slab.h> |
22 | #include <linux/mfd/core.h> |
23 | #include <linux/mfd/88pm860x.h> |
24 | #include <linux/regulator/machine.h> |
25 | #include <linux/power/charger-manager.h> |
26 | |
27 | #define INT_STATUS_NUM 3 |
28 | |
29 | static const struct resource bk0_resources[] = { |
30 | {2, 2, "duty cycle" , IORESOURCE_REG, }, |
31 | {3, 3, "always on" , IORESOURCE_REG, }, |
32 | {3, 3, "current" , IORESOURCE_REG, }, |
33 | }; |
34 | static const struct resource bk1_resources[] = { |
35 | {4, 4, "duty cycle" , IORESOURCE_REG, }, |
36 | {5, 5, "always on" , IORESOURCE_REG, }, |
37 | {5, 5, "current" , IORESOURCE_REG, }, |
38 | }; |
39 | static const struct resource bk2_resources[] = { |
40 | {6, 6, "duty cycle" , IORESOURCE_REG, }, |
41 | {7, 7, "always on" , IORESOURCE_REG, }, |
42 | {5, 5, "current" , IORESOURCE_REG, }, |
43 | }; |
44 | |
45 | static const struct resource led0_resources[] = { |
46 | /* RGB1 Red LED */ |
47 | {0xd, 0xd, "control" , IORESOURCE_REG, }, |
48 | {0xc, 0xc, "blink" , IORESOURCE_REG, }, |
49 | }; |
50 | static const struct resource led1_resources[] = { |
51 | /* RGB1 Green LED */ |
52 | {0xe, 0xe, "control" , IORESOURCE_REG, }, |
53 | {0xc, 0xc, "blink" , IORESOURCE_REG, }, |
54 | }; |
55 | static const struct resource led2_resources[] = { |
56 | /* RGB1 Blue LED */ |
57 | {0xf, 0xf, "control" , IORESOURCE_REG, }, |
58 | {0xc, 0xc, "blink" , IORESOURCE_REG, }, |
59 | }; |
60 | static const struct resource led3_resources[] = { |
61 | /* RGB2 Red LED */ |
62 | {0x9, 0x9, "control" , IORESOURCE_REG, }, |
63 | {0x8, 0x8, "blink" , IORESOURCE_REG, }, |
64 | }; |
65 | static const struct resource led4_resources[] = { |
66 | /* RGB2 Green LED */ |
67 | {0xa, 0xa, "control" , IORESOURCE_REG, }, |
68 | {0x8, 0x8, "blink" , IORESOURCE_REG, }, |
69 | }; |
70 | static const struct resource led5_resources[] = { |
71 | /* RGB2 Blue LED */ |
72 | {0xb, 0xb, "control" , IORESOURCE_REG, }, |
73 | {0x8, 0x8, "blink" , IORESOURCE_REG, }, |
74 | }; |
75 | |
76 | static const struct resource buck1_resources[] = { |
77 | {0x24, 0x24, "buck set" , IORESOURCE_REG, }, |
78 | }; |
79 | static const struct resource buck2_resources[] = { |
80 | {0x25, 0x25, "buck set" , IORESOURCE_REG, }, |
81 | }; |
82 | static const struct resource buck3_resources[] = { |
83 | {0x26, 0x26, "buck set" , IORESOURCE_REG, }, |
84 | }; |
85 | static const struct resource ldo1_resources[] = { |
86 | {0x10, 0x10, "ldo set" , IORESOURCE_REG, }, |
87 | }; |
88 | static const struct resource ldo2_resources[] = { |
89 | {0x11, 0x11, "ldo set" , IORESOURCE_REG, }, |
90 | }; |
91 | static const struct resource ldo3_resources[] = { |
92 | {0x12, 0x12, "ldo set" , IORESOURCE_REG, }, |
93 | }; |
94 | static const struct resource ldo4_resources[] = { |
95 | {0x13, 0x13, "ldo set" , IORESOURCE_REG, }, |
96 | }; |
97 | static const struct resource ldo5_resources[] = { |
98 | {0x14, 0x14, "ldo set" , IORESOURCE_REG, }, |
99 | }; |
100 | static const struct resource ldo6_resources[] = { |
101 | {0x15, 0x15, "ldo set" , IORESOURCE_REG, }, |
102 | }; |
103 | static const struct resource ldo7_resources[] = { |
104 | {0x16, 0x16, "ldo set" , IORESOURCE_REG, }, |
105 | }; |
106 | static const struct resource ldo8_resources[] = { |
107 | {0x17, 0x17, "ldo set" , IORESOURCE_REG, }, |
108 | }; |
109 | static const struct resource ldo9_resources[] = { |
110 | {0x18, 0x18, "ldo set" , IORESOURCE_REG, }, |
111 | }; |
112 | static const struct resource ldo10_resources[] = { |
113 | {0x19, 0x19, "ldo set" , IORESOURCE_REG, }, |
114 | }; |
115 | static const struct resource ldo12_resources[] = { |
116 | {0x1a, 0x1a, "ldo set" , IORESOURCE_REG, }, |
117 | }; |
118 | static const struct resource ldo_vibrator_resources[] = { |
119 | {0x28, 0x28, "ldo set" , IORESOURCE_REG, }, |
120 | }; |
121 | static const struct resource ldo14_resources[] = { |
122 | {0x1b, 0x1b, "ldo set" , IORESOURCE_REG, }, |
123 | }; |
124 | |
125 | static struct resource touch_resources[] = { |
126 | {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch" , IORESOURCE_IRQ,}, |
127 | }; |
128 | |
129 | static struct resource onkey_resources[] = { |
130 | {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey" , IORESOURCE_IRQ,}, |
131 | }; |
132 | |
133 | static struct resource codec_resources[] = { |
134 | /* Headset microphone insertion or removal */ |
135 | {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin" , IORESOURCE_IRQ,}, |
136 | /* Hook-switch press or release */ |
137 | {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook" , IORESOURCE_IRQ,}, |
138 | /* Headset insertion or removal */ |
139 | {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset" , IORESOURCE_IRQ,}, |
140 | /* Audio short */ |
141 | {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short" , |
142 | IORESOURCE_IRQ,}, |
143 | }; |
144 | |
145 | static struct resource battery_resources[] = { |
146 | {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter" , IORESOURCE_IRQ,}, |
147 | {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery" , IORESOURCE_IRQ,}, |
148 | }; |
149 | |
150 | static struct resource charger_resources[] = { |
151 | {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect" , IORESOURCE_IRQ,}, |
152 | {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done" , |
153 | IORESOURCE_IRQ,}, |
154 | {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout" , |
155 | IORESOURCE_IRQ,}, |
156 | {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault" , |
157 | IORESOURCE_IRQ,}, |
158 | {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature" , |
159 | IORESOURCE_IRQ,}, |
160 | {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage" , IORESOURCE_IRQ,}, |
161 | {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage" , IORESOURCE_IRQ,}, |
162 | }; |
163 | |
164 | static struct resource rtc_resources[] = { |
165 | {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc" , IORESOURCE_IRQ,}, |
166 | }; |
167 | |
168 | static struct mfd_cell bk_devs[] = { |
169 | { |
170 | .name = "88pm860x-backlight" , |
171 | .id = 0, |
172 | .num_resources = ARRAY_SIZE(bk0_resources), |
173 | .resources = bk0_resources, |
174 | }, { |
175 | .name = "88pm860x-backlight" , |
176 | .id = 1, |
177 | .num_resources = ARRAY_SIZE(bk1_resources), |
178 | .resources = bk1_resources, |
179 | }, { |
180 | .name = "88pm860x-backlight" , |
181 | .id = 2, |
182 | .num_resources = ARRAY_SIZE(bk2_resources), |
183 | .resources = bk2_resources, |
184 | }, |
185 | }; |
186 | |
187 | static struct mfd_cell led_devs[] = { |
188 | { |
189 | .name = "88pm860x-led" , |
190 | .id = 0, |
191 | .num_resources = ARRAY_SIZE(led0_resources), |
192 | .resources = led0_resources, |
193 | }, { |
194 | .name = "88pm860x-led" , |
195 | .id = 1, |
196 | .num_resources = ARRAY_SIZE(led1_resources), |
197 | .resources = led1_resources, |
198 | }, { |
199 | .name = "88pm860x-led" , |
200 | .id = 2, |
201 | .num_resources = ARRAY_SIZE(led2_resources), |
202 | .resources = led2_resources, |
203 | }, { |
204 | .name = "88pm860x-led" , |
205 | .id = 3, |
206 | .num_resources = ARRAY_SIZE(led3_resources), |
207 | .resources = led3_resources, |
208 | }, { |
209 | .name = "88pm860x-led" , |
210 | .id = 4, |
211 | .num_resources = ARRAY_SIZE(led4_resources), |
212 | .resources = led4_resources, |
213 | }, { |
214 | .name = "88pm860x-led" , |
215 | .id = 5, |
216 | .num_resources = ARRAY_SIZE(led5_resources), |
217 | .resources = led5_resources, |
218 | }, |
219 | }; |
220 | |
221 | static struct mfd_cell reg_devs[] = { |
222 | { |
223 | .name = "88pm860x-regulator" , |
224 | .id = 0, |
225 | .num_resources = ARRAY_SIZE(buck1_resources), |
226 | .resources = buck1_resources, |
227 | }, { |
228 | .name = "88pm860x-regulator" , |
229 | .id = 1, |
230 | .num_resources = ARRAY_SIZE(buck2_resources), |
231 | .resources = buck2_resources, |
232 | }, { |
233 | .name = "88pm860x-regulator" , |
234 | .id = 2, |
235 | .num_resources = ARRAY_SIZE(buck3_resources), |
236 | .resources = buck3_resources, |
237 | }, { |
238 | .name = "88pm860x-regulator" , |
239 | .id = 3, |
240 | .num_resources = ARRAY_SIZE(ldo1_resources), |
241 | .resources = ldo1_resources, |
242 | }, { |
243 | .name = "88pm860x-regulator" , |
244 | .id = 4, |
245 | .num_resources = ARRAY_SIZE(ldo2_resources), |
246 | .resources = ldo2_resources, |
247 | }, { |
248 | .name = "88pm860x-regulator" , |
249 | .id = 5, |
250 | .num_resources = ARRAY_SIZE(ldo3_resources), |
251 | .resources = ldo3_resources, |
252 | }, { |
253 | .name = "88pm860x-regulator" , |
254 | .id = 6, |
255 | .num_resources = ARRAY_SIZE(ldo4_resources), |
256 | .resources = ldo4_resources, |
257 | }, { |
258 | .name = "88pm860x-regulator" , |
259 | .id = 7, |
260 | .num_resources = ARRAY_SIZE(ldo5_resources), |
261 | .resources = ldo5_resources, |
262 | }, { |
263 | .name = "88pm860x-regulator" , |
264 | .id = 8, |
265 | .num_resources = ARRAY_SIZE(ldo6_resources), |
266 | .resources = ldo6_resources, |
267 | }, { |
268 | .name = "88pm860x-regulator" , |
269 | .id = 9, |
270 | .num_resources = ARRAY_SIZE(ldo7_resources), |
271 | .resources = ldo7_resources, |
272 | }, { |
273 | .name = "88pm860x-regulator" , |
274 | .id = 10, |
275 | .num_resources = ARRAY_SIZE(ldo8_resources), |
276 | .resources = ldo8_resources, |
277 | }, { |
278 | .name = "88pm860x-regulator" , |
279 | .id = 11, |
280 | .num_resources = ARRAY_SIZE(ldo9_resources), |
281 | .resources = ldo9_resources, |
282 | }, { |
283 | .name = "88pm860x-regulator" , |
284 | .id = 12, |
285 | .num_resources = ARRAY_SIZE(ldo10_resources), |
286 | .resources = ldo10_resources, |
287 | }, { |
288 | .name = "88pm860x-regulator" , |
289 | .id = 13, |
290 | .num_resources = ARRAY_SIZE(ldo12_resources), |
291 | .resources = ldo12_resources, |
292 | }, { |
293 | .name = "88pm860x-regulator" , |
294 | .id = 14, |
295 | .num_resources = ARRAY_SIZE(ldo_vibrator_resources), |
296 | .resources = ldo_vibrator_resources, |
297 | }, { |
298 | .name = "88pm860x-regulator" , |
299 | .id = 15, |
300 | .num_resources = ARRAY_SIZE(ldo14_resources), |
301 | .resources = ldo14_resources, |
302 | }, |
303 | }; |
304 | |
305 | static struct mfd_cell touch_devs[] = { |
306 | {"88pm860x-touch" , -1,}, |
307 | }; |
308 | |
309 | static struct mfd_cell onkey_devs[] = { |
310 | {"88pm860x-onkey" , -1,}, |
311 | }; |
312 | |
313 | static struct mfd_cell codec_devs[] = { |
314 | {"88pm860x-codec" , -1,}, |
315 | }; |
316 | |
317 | static struct regulator_consumer_supply preg_supply[] = { |
318 | REGULATOR_SUPPLY("preg" , "charger-manager" ), |
319 | }; |
320 | |
321 | static struct regulator_init_data preg_init_data = { |
322 | .num_consumer_supplies = ARRAY_SIZE(preg_supply), |
323 | .consumer_supplies = &preg_supply[0], |
324 | }; |
325 | |
326 | static struct charger_regulator chg_desc_regulator_data[] = { |
327 | { .regulator_name = "preg" , }, |
328 | }; |
329 | |
330 | static struct mfd_cell power_devs[] = { |
331 | {"88pm860x-battery" , -1,}, |
332 | {"88pm860x-charger" , -1,}, |
333 | {"88pm860x-preg" , -1,}, |
334 | {"charger-manager" , -1,}, |
335 | }; |
336 | |
337 | static struct mfd_cell rtc_devs[] = { |
338 | {"88pm860x-rtc" , -1,}, |
339 | }; |
340 | |
341 | |
342 | struct pm860x_irq_data { |
343 | int reg; |
344 | int mask_reg; |
345 | int enable; /* enable or not */ |
346 | int offs; /* bit offset in mask register */ |
347 | }; |
348 | |
349 | static struct pm860x_irq_data pm860x_irqs[] = { |
350 | [PM8607_IRQ_ONKEY] = { |
351 | .reg = PM8607_INT_STATUS1, |
352 | .mask_reg = PM8607_INT_MASK_1, |
353 | .offs = 1 << 0, |
354 | }, |
355 | [PM8607_IRQ_EXTON] = { |
356 | .reg = PM8607_INT_STATUS1, |
357 | .mask_reg = PM8607_INT_MASK_1, |
358 | .offs = 1 << 1, |
359 | }, |
360 | [PM8607_IRQ_CHG] = { |
361 | .reg = PM8607_INT_STATUS1, |
362 | .mask_reg = PM8607_INT_MASK_1, |
363 | .offs = 1 << 2, |
364 | }, |
365 | [PM8607_IRQ_BAT] = { |
366 | .reg = PM8607_INT_STATUS1, |
367 | .mask_reg = PM8607_INT_MASK_1, |
368 | .offs = 1 << 3, |
369 | }, |
370 | [PM8607_IRQ_RTC] = { |
371 | .reg = PM8607_INT_STATUS1, |
372 | .mask_reg = PM8607_INT_MASK_1, |
373 | .offs = 1 << 4, |
374 | }, |
375 | [PM8607_IRQ_CC] = { |
376 | .reg = PM8607_INT_STATUS1, |
377 | .mask_reg = PM8607_INT_MASK_1, |
378 | .offs = 1 << 5, |
379 | }, |
380 | [PM8607_IRQ_VBAT] = { |
381 | .reg = PM8607_INT_STATUS2, |
382 | .mask_reg = PM8607_INT_MASK_2, |
383 | .offs = 1 << 0, |
384 | }, |
385 | [PM8607_IRQ_VCHG] = { |
386 | .reg = PM8607_INT_STATUS2, |
387 | .mask_reg = PM8607_INT_MASK_2, |
388 | .offs = 1 << 1, |
389 | }, |
390 | [PM8607_IRQ_VSYS] = { |
391 | .reg = PM8607_INT_STATUS2, |
392 | .mask_reg = PM8607_INT_MASK_2, |
393 | .offs = 1 << 2, |
394 | }, |
395 | [PM8607_IRQ_TINT] = { |
396 | .reg = PM8607_INT_STATUS2, |
397 | .mask_reg = PM8607_INT_MASK_2, |
398 | .offs = 1 << 3, |
399 | }, |
400 | [PM8607_IRQ_GPADC0] = { |
401 | .reg = PM8607_INT_STATUS2, |
402 | .mask_reg = PM8607_INT_MASK_2, |
403 | .offs = 1 << 4, |
404 | }, |
405 | [PM8607_IRQ_GPADC1] = { |
406 | .reg = PM8607_INT_STATUS2, |
407 | .mask_reg = PM8607_INT_MASK_2, |
408 | .offs = 1 << 5, |
409 | }, |
410 | [PM8607_IRQ_GPADC2] = { |
411 | .reg = PM8607_INT_STATUS2, |
412 | .mask_reg = PM8607_INT_MASK_2, |
413 | .offs = 1 << 6, |
414 | }, |
415 | [PM8607_IRQ_GPADC3] = { |
416 | .reg = PM8607_INT_STATUS2, |
417 | .mask_reg = PM8607_INT_MASK_2, |
418 | .offs = 1 << 7, |
419 | }, |
420 | [PM8607_IRQ_AUDIO_SHORT] = { |
421 | .reg = PM8607_INT_STATUS3, |
422 | .mask_reg = PM8607_INT_MASK_3, |
423 | .offs = 1 << 0, |
424 | }, |
425 | [PM8607_IRQ_PEN] = { |
426 | .reg = PM8607_INT_STATUS3, |
427 | .mask_reg = PM8607_INT_MASK_3, |
428 | .offs = 1 << 1, |
429 | }, |
430 | [PM8607_IRQ_HEADSET] = { |
431 | .reg = PM8607_INT_STATUS3, |
432 | .mask_reg = PM8607_INT_MASK_3, |
433 | .offs = 1 << 2, |
434 | }, |
435 | [PM8607_IRQ_HOOK] = { |
436 | .reg = PM8607_INT_STATUS3, |
437 | .mask_reg = PM8607_INT_MASK_3, |
438 | .offs = 1 << 3, |
439 | }, |
440 | [PM8607_IRQ_MICIN] = { |
441 | .reg = PM8607_INT_STATUS3, |
442 | .mask_reg = PM8607_INT_MASK_3, |
443 | .offs = 1 << 4, |
444 | }, |
445 | [PM8607_IRQ_CHG_FAIL] = { |
446 | .reg = PM8607_INT_STATUS3, |
447 | .mask_reg = PM8607_INT_MASK_3, |
448 | .offs = 1 << 5, |
449 | }, |
450 | [PM8607_IRQ_CHG_DONE] = { |
451 | .reg = PM8607_INT_STATUS3, |
452 | .mask_reg = PM8607_INT_MASK_3, |
453 | .offs = 1 << 6, |
454 | }, |
455 | [PM8607_IRQ_CHG_FAULT] = { |
456 | .reg = PM8607_INT_STATUS3, |
457 | .mask_reg = PM8607_INT_MASK_3, |
458 | .offs = 1 << 7, |
459 | }, |
460 | }; |
461 | |
462 | static irqreturn_t pm860x_irq(int irq, void *data) |
463 | { |
464 | struct pm860x_chip *chip = data; |
465 | struct pm860x_irq_data *irq_data; |
466 | struct i2c_client *i2c; |
467 | int read_reg = -1, value = 0; |
468 | int i; |
469 | |
470 | i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; |
471 | for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { |
472 | irq_data = &pm860x_irqs[i]; |
473 | if (read_reg != irq_data->reg) { |
474 | read_reg = irq_data->reg; |
475 | value = pm860x_reg_read(i2c, irq_data->reg); |
476 | } |
477 | if (value & irq_data->enable) |
478 | handle_nested_irq(irq: chip->irq_base + i); |
479 | } |
480 | return IRQ_HANDLED; |
481 | } |
482 | |
483 | static void pm860x_irq_lock(struct irq_data *data) |
484 | { |
485 | struct pm860x_chip *chip = irq_data_get_irq_chip_data(d: data); |
486 | |
487 | mutex_lock(&chip->irq_lock); |
488 | } |
489 | |
490 | static void pm860x_irq_sync_unlock(struct irq_data *data) |
491 | { |
492 | struct pm860x_chip *chip = irq_data_get_irq_chip_data(d: data); |
493 | struct pm860x_irq_data *irq_data; |
494 | struct i2c_client *i2c; |
495 | static unsigned char cached[3] = {0x0, 0x0, 0x0}; |
496 | unsigned char mask[3]; |
497 | int i; |
498 | |
499 | i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; |
500 | /* Load cached value. In initial, all IRQs are masked */ |
501 | for (i = 0; i < 3; i++) |
502 | mask[i] = cached[i]; |
503 | for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { |
504 | irq_data = &pm860x_irqs[i]; |
505 | switch (irq_data->mask_reg) { |
506 | case PM8607_INT_MASK_1: |
507 | mask[0] &= ~irq_data->offs; |
508 | mask[0] |= irq_data->enable; |
509 | break; |
510 | case PM8607_INT_MASK_2: |
511 | mask[1] &= ~irq_data->offs; |
512 | mask[1] |= irq_data->enable; |
513 | break; |
514 | case PM8607_INT_MASK_3: |
515 | mask[2] &= ~irq_data->offs; |
516 | mask[2] |= irq_data->enable; |
517 | break; |
518 | default: |
519 | dev_err(chip->dev, "wrong IRQ\n" ); |
520 | break; |
521 | } |
522 | } |
523 | /* update mask into registers */ |
524 | for (i = 0; i < 3; i++) { |
525 | if (mask[i] != cached[i]) { |
526 | cached[i] = mask[i]; |
527 | pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); |
528 | } |
529 | } |
530 | |
531 | mutex_unlock(lock: &chip->irq_lock); |
532 | } |
533 | |
534 | static void pm860x_irq_enable(struct irq_data *data) |
535 | { |
536 | pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; |
537 | } |
538 | |
539 | static void pm860x_irq_disable(struct irq_data *data) |
540 | { |
541 | pm860x_irqs[data->hwirq].enable = 0; |
542 | } |
543 | |
544 | static struct irq_chip pm860x_irq_chip = { |
545 | .name = "88pm860x" , |
546 | .irq_bus_lock = pm860x_irq_lock, |
547 | .irq_bus_sync_unlock = pm860x_irq_sync_unlock, |
548 | .irq_enable = pm860x_irq_enable, |
549 | .irq_disable = pm860x_irq_disable, |
550 | }; |
551 | |
552 | static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, |
553 | irq_hw_number_t hw) |
554 | { |
555 | irq_set_chip_data(irq: virq, data: d->host_data); |
556 | irq_set_chip_and_handler(irq: virq, chip: &pm860x_irq_chip, handle: handle_edge_irq); |
557 | irq_set_nested_thread(irq: virq, nest: 1); |
558 | irq_set_noprobe(irq: virq); |
559 | return 0; |
560 | } |
561 | |
562 | static const struct irq_domain_ops pm860x_irq_domain_ops = { |
563 | .map = pm860x_irq_domain_map, |
564 | .xlate = irq_domain_xlate_onetwocell, |
565 | }; |
566 | |
567 | static int device_irq_init(struct pm860x_chip *chip, |
568 | struct pm860x_platform_data *pdata) |
569 | { |
570 | struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? |
571 | chip->client : chip->companion; |
572 | unsigned char status_buf[INT_STATUS_NUM]; |
573 | unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; |
574 | int data, mask, ret = -EINVAL; |
575 | int nr_irqs, irq_base = -1; |
576 | struct device_node *node = i2c->dev.of_node; |
577 | |
578 | mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR |
579 | | PM8607_B0_MISC1_INT_MASK; |
580 | data = 0; |
581 | chip->irq_mode = 0; |
582 | if (pdata && pdata->irq_mode) { |
583 | /* |
584 | * irq_mode defines the way of clearing interrupt. If it's 1, |
585 | * clear IRQ by write. Otherwise, clear it by read. |
586 | * This control bit is valid from 88PM8607 B0 steping. |
587 | */ |
588 | data |= PM8607_B0_MISC1_INT_CLEAR; |
589 | chip->irq_mode = 1; |
590 | } |
591 | ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); |
592 | if (ret < 0) |
593 | goto out; |
594 | |
595 | /* mask all IRQs */ |
596 | memset(status_buf, 0, INT_STATUS_NUM); |
597 | ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, |
598 | INT_STATUS_NUM, status_buf); |
599 | if (ret < 0) |
600 | goto out; |
601 | |
602 | if (chip->irq_mode) { |
603 | /* clear interrupt status by write */ |
604 | memset(status_buf, 0xFF, INT_STATUS_NUM); |
605 | ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, |
606 | INT_STATUS_NUM, status_buf); |
607 | } else { |
608 | /* clear interrupt status by read */ |
609 | ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, |
610 | INT_STATUS_NUM, status_buf); |
611 | } |
612 | if (ret < 0) |
613 | goto out; |
614 | |
615 | mutex_init(&chip->irq_lock); |
616 | |
617 | if (pdata && pdata->irq_base) |
618 | irq_base = pdata->irq_base; |
619 | nr_irqs = ARRAY_SIZE(pm860x_irqs); |
620 | chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); |
621 | if (chip->irq_base < 0) { |
622 | dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n" , |
623 | chip->irq_base); |
624 | ret = -EBUSY; |
625 | goto out; |
626 | } |
627 | irq_domain_add_legacy(of_node: node, size: nr_irqs, first_irq: chip->irq_base, first_hwirq: 0, |
628 | ops: &pm860x_irq_domain_ops, host_data: chip); |
629 | chip->core_irq = i2c->irq; |
630 | if (!chip->core_irq) |
631 | goto out; |
632 | |
633 | ret = request_threaded_irq(irq: chip->core_irq, NULL, thread_fn: pm860x_irq, |
634 | flags: flags | IRQF_ONESHOT, name: "88pm860x" , dev: chip); |
635 | if (ret) { |
636 | dev_err(chip->dev, "Failed to request IRQ: %d\n" , ret); |
637 | chip->core_irq = 0; |
638 | } |
639 | |
640 | return 0; |
641 | out: |
642 | chip->core_irq = 0; |
643 | return ret; |
644 | } |
645 | |
646 | static void device_irq_exit(struct pm860x_chip *chip) |
647 | { |
648 | if (chip->core_irq) |
649 | free_irq(chip->core_irq, chip); |
650 | } |
651 | |
652 | int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) |
653 | { |
654 | int ret = -EIO; |
655 | struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? |
656 | chip->client : chip->companion; |
657 | |
658 | dev_dbg(chip->dev, "%s(B): client=0x%x\n" , __func__, client); |
659 | dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n" , |
660 | __func__, chip->osc_vote, |
661 | chip->osc_status); |
662 | |
663 | mutex_lock(&chip->osc_lock); |
664 | /* Update voting status */ |
665 | chip->osc_vote |= client; |
666 | /* If reference group is off - turn on*/ |
667 | if (chip->osc_status != PM8606_REF_GP_OSC_ON) { |
668 | chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; |
669 | /* Enable Reference group Vsys */ |
670 | if (pm860x_set_bits(i2c, PM8606_VSYS, |
671 | PM8606_VSYS_EN, PM8606_VSYS_EN)) |
672 | goto out; |
673 | |
674 | /*Enable Internal Oscillator */ |
675 | if (pm860x_set_bits(i2c, PM8606_MISC, |
676 | PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) |
677 | goto out; |
678 | /* Update status (only if writes succeed) */ |
679 | chip->osc_status = PM8606_REF_GP_OSC_ON; |
680 | } |
681 | mutex_unlock(lock: &chip->osc_lock); |
682 | |
683 | dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n" , |
684 | __func__, chip->osc_vote, |
685 | chip->osc_status, ret); |
686 | return 0; |
687 | out: |
688 | mutex_unlock(lock: &chip->osc_lock); |
689 | return ret; |
690 | } |
691 | EXPORT_SYMBOL(pm8606_osc_enable); |
692 | |
693 | int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) |
694 | { |
695 | int ret = -EIO; |
696 | struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? |
697 | chip->client : chip->companion; |
698 | |
699 | dev_dbg(chip->dev, "%s(B): client=0x%x\n" , __func__, client); |
700 | dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n" , |
701 | __func__, chip->osc_vote, |
702 | chip->osc_status); |
703 | |
704 | mutex_lock(&chip->osc_lock); |
705 | /* Update voting status */ |
706 | chip->osc_vote &= ~(client); |
707 | /* |
708 | * If reference group is off and this is the last client to release |
709 | * - turn off |
710 | */ |
711 | if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && |
712 | (chip->osc_vote == REF_GP_NO_CLIENTS)) { |
713 | chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; |
714 | /* Disable Reference group Vsys */ |
715 | if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) |
716 | goto out; |
717 | /* Disable Internal Oscillator */ |
718 | if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) |
719 | goto out; |
720 | chip->osc_status = PM8606_REF_GP_OSC_OFF; |
721 | } |
722 | mutex_unlock(lock: &chip->osc_lock); |
723 | |
724 | dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n" , |
725 | __func__, chip->osc_vote, |
726 | chip->osc_status, ret); |
727 | return 0; |
728 | out: |
729 | mutex_unlock(lock: &chip->osc_lock); |
730 | return ret; |
731 | } |
732 | EXPORT_SYMBOL(pm8606_osc_disable); |
733 | |
734 | static void device_osc_init(struct i2c_client *i2c) |
735 | { |
736 | struct pm860x_chip *chip = i2c_get_clientdata(client: i2c); |
737 | |
738 | mutex_init(&chip->osc_lock); |
739 | /* init portofino reference group voting and status */ |
740 | /* Disable Reference group Vsys */ |
741 | pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); |
742 | /* Disable Internal Oscillator */ |
743 | pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); |
744 | |
745 | chip->osc_vote = REF_GP_NO_CLIENTS; |
746 | chip->osc_status = PM8606_REF_GP_OSC_OFF; |
747 | } |
748 | |
749 | static void device_bk_init(struct pm860x_chip *chip, |
750 | struct pm860x_platform_data *pdata) |
751 | { |
752 | int ret, i; |
753 | |
754 | if (pdata && pdata->backlight) { |
755 | if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) |
756 | pdata->num_backlights = ARRAY_SIZE(bk_devs); |
757 | for (i = 0; i < pdata->num_backlights; i++) { |
758 | bk_devs[i].platform_data = &pdata->backlight[i]; |
759 | bk_devs[i].pdata_size = |
760 | sizeof(struct pm860x_backlight_pdata); |
761 | } |
762 | } |
763 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: bk_devs, |
764 | ARRAY_SIZE(bk_devs), NULL, irq_base: 0, NULL); |
765 | if (ret < 0) |
766 | dev_err(chip->dev, "Failed to add backlight subdev\n" ); |
767 | } |
768 | |
769 | static void device_led_init(struct pm860x_chip *chip, |
770 | struct pm860x_platform_data *pdata) |
771 | { |
772 | int ret, i; |
773 | |
774 | if (pdata && pdata->led) { |
775 | if (pdata->num_leds > ARRAY_SIZE(led_devs)) |
776 | pdata->num_leds = ARRAY_SIZE(led_devs); |
777 | for (i = 0; i < pdata->num_leds; i++) { |
778 | led_devs[i].platform_data = &pdata->led[i]; |
779 | led_devs[i].pdata_size = |
780 | sizeof(struct pm860x_led_pdata); |
781 | } |
782 | } |
783 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: led_devs, |
784 | ARRAY_SIZE(led_devs), NULL, irq_base: 0, NULL); |
785 | if (ret < 0) { |
786 | dev_err(chip->dev, "Failed to add led subdev\n" ); |
787 | return; |
788 | } |
789 | } |
790 | |
791 | static void device_regulator_init(struct pm860x_chip *chip, |
792 | struct pm860x_platform_data *pdata) |
793 | { |
794 | int ret; |
795 | |
796 | if (pdata == NULL) |
797 | return; |
798 | if (pdata->buck1) { |
799 | reg_devs[0].platform_data = pdata->buck1; |
800 | reg_devs[0].pdata_size = sizeof(struct regulator_init_data); |
801 | } |
802 | if (pdata->buck2) { |
803 | reg_devs[1].platform_data = pdata->buck2; |
804 | reg_devs[1].pdata_size = sizeof(struct regulator_init_data); |
805 | } |
806 | if (pdata->buck3) { |
807 | reg_devs[2].platform_data = pdata->buck3; |
808 | reg_devs[2].pdata_size = sizeof(struct regulator_init_data); |
809 | } |
810 | if (pdata->ldo1) { |
811 | reg_devs[3].platform_data = pdata->ldo1; |
812 | reg_devs[3].pdata_size = sizeof(struct regulator_init_data); |
813 | } |
814 | if (pdata->ldo2) { |
815 | reg_devs[4].platform_data = pdata->ldo2; |
816 | reg_devs[4].pdata_size = sizeof(struct regulator_init_data); |
817 | } |
818 | if (pdata->ldo3) { |
819 | reg_devs[5].platform_data = pdata->ldo3; |
820 | reg_devs[5].pdata_size = sizeof(struct regulator_init_data); |
821 | } |
822 | if (pdata->ldo4) { |
823 | reg_devs[6].platform_data = pdata->ldo4; |
824 | reg_devs[6].pdata_size = sizeof(struct regulator_init_data); |
825 | } |
826 | if (pdata->ldo5) { |
827 | reg_devs[7].platform_data = pdata->ldo5; |
828 | reg_devs[7].pdata_size = sizeof(struct regulator_init_data); |
829 | } |
830 | if (pdata->ldo6) { |
831 | reg_devs[8].platform_data = pdata->ldo6; |
832 | reg_devs[8].pdata_size = sizeof(struct regulator_init_data); |
833 | } |
834 | if (pdata->ldo7) { |
835 | reg_devs[9].platform_data = pdata->ldo7; |
836 | reg_devs[9].pdata_size = sizeof(struct regulator_init_data); |
837 | } |
838 | if (pdata->ldo8) { |
839 | reg_devs[10].platform_data = pdata->ldo8; |
840 | reg_devs[10].pdata_size = sizeof(struct regulator_init_data); |
841 | } |
842 | if (pdata->ldo9) { |
843 | reg_devs[11].platform_data = pdata->ldo9; |
844 | reg_devs[11].pdata_size = sizeof(struct regulator_init_data); |
845 | } |
846 | if (pdata->ldo10) { |
847 | reg_devs[12].platform_data = pdata->ldo10; |
848 | reg_devs[12].pdata_size = sizeof(struct regulator_init_data); |
849 | } |
850 | if (pdata->ldo12) { |
851 | reg_devs[13].platform_data = pdata->ldo12; |
852 | reg_devs[13].pdata_size = sizeof(struct regulator_init_data); |
853 | } |
854 | if (pdata->ldo_vibrator) { |
855 | reg_devs[14].platform_data = pdata->ldo_vibrator; |
856 | reg_devs[14].pdata_size = sizeof(struct regulator_init_data); |
857 | } |
858 | if (pdata->ldo14) { |
859 | reg_devs[15].platform_data = pdata->ldo14; |
860 | reg_devs[15].pdata_size = sizeof(struct regulator_init_data); |
861 | } |
862 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: reg_devs, |
863 | ARRAY_SIZE(reg_devs), NULL, irq_base: 0, NULL); |
864 | if (ret < 0) { |
865 | dev_err(chip->dev, "Failed to add regulator subdev\n" ); |
866 | return; |
867 | } |
868 | } |
869 | |
870 | static void device_rtc_init(struct pm860x_chip *chip, |
871 | struct pm860x_platform_data *pdata) |
872 | { |
873 | int ret; |
874 | |
875 | if (!pdata) |
876 | return; |
877 | |
878 | rtc_devs[0].platform_data = pdata->rtc; |
879 | rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); |
880 | rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); |
881 | rtc_devs[0].resources = &rtc_resources[0]; |
882 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &rtc_devs[0], |
883 | ARRAY_SIZE(rtc_devs), mem_base: &rtc_resources[0], |
884 | irq_base: chip->irq_base, NULL); |
885 | if (ret < 0) |
886 | dev_err(chip->dev, "Failed to add rtc subdev\n" ); |
887 | } |
888 | |
889 | static void device_touch_init(struct pm860x_chip *chip, |
890 | struct pm860x_platform_data *pdata) |
891 | { |
892 | int ret; |
893 | |
894 | if (pdata == NULL) |
895 | return; |
896 | |
897 | touch_devs[0].platform_data = pdata->touch; |
898 | touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); |
899 | touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); |
900 | touch_devs[0].resources = &touch_resources[0]; |
901 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &touch_devs[0], |
902 | ARRAY_SIZE(touch_devs), mem_base: &touch_resources[0], |
903 | irq_base: chip->irq_base, NULL); |
904 | if (ret < 0) |
905 | dev_err(chip->dev, "Failed to add touch subdev\n" ); |
906 | } |
907 | |
908 | static void device_power_init(struct pm860x_chip *chip, |
909 | struct pm860x_platform_data *pdata) |
910 | { |
911 | int ret; |
912 | |
913 | if (pdata == NULL) |
914 | return; |
915 | |
916 | power_devs[0].platform_data = pdata->power; |
917 | power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); |
918 | power_devs[0].num_resources = ARRAY_SIZE(battery_resources); |
919 | power_devs[0].resources = &battery_resources[0], |
920 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &power_devs[0], n_devs: 1, |
921 | mem_base: &battery_resources[0], irq_base: chip->irq_base, NULL); |
922 | if (ret < 0) |
923 | dev_err(chip->dev, "Failed to add battery subdev\n" ); |
924 | |
925 | power_devs[1].platform_data = pdata->power; |
926 | power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); |
927 | power_devs[1].num_resources = ARRAY_SIZE(charger_resources); |
928 | power_devs[1].resources = &charger_resources[0], |
929 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &power_devs[1], n_devs: 1, |
930 | mem_base: &charger_resources[0], irq_base: chip->irq_base, NULL); |
931 | if (ret < 0) |
932 | dev_err(chip->dev, "Failed to add charger subdev\n" ); |
933 | |
934 | power_devs[2].platform_data = &preg_init_data; |
935 | power_devs[2].pdata_size = sizeof(struct regulator_init_data); |
936 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &power_devs[2], n_devs: 1, |
937 | NULL, irq_base: chip->irq_base, NULL); |
938 | if (ret < 0) |
939 | dev_err(chip->dev, "Failed to add preg subdev\n" ); |
940 | |
941 | if (pdata->chg_desc) { |
942 | pdata->chg_desc->charger_regulators = |
943 | &chg_desc_regulator_data[0]; |
944 | pdata->chg_desc->num_charger_regulators = |
945 | ARRAY_SIZE(chg_desc_regulator_data), |
946 | power_devs[3].platform_data = pdata->chg_desc; |
947 | power_devs[3].pdata_size = sizeof(*pdata->chg_desc); |
948 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &power_devs[3], n_devs: 1, |
949 | NULL, irq_base: chip->irq_base, NULL); |
950 | if (ret < 0) |
951 | dev_err(chip->dev, "Failed to add chg-manager subdev\n" ); |
952 | } |
953 | } |
954 | |
955 | static void device_onkey_init(struct pm860x_chip *chip, |
956 | struct pm860x_platform_data *pdata) |
957 | { |
958 | int ret; |
959 | |
960 | onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); |
961 | onkey_devs[0].resources = &onkey_resources[0], |
962 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &onkey_devs[0], |
963 | ARRAY_SIZE(onkey_devs), mem_base: &onkey_resources[0], |
964 | irq_base: chip->irq_base, NULL); |
965 | if (ret < 0) |
966 | dev_err(chip->dev, "Failed to add onkey subdev\n" ); |
967 | } |
968 | |
969 | static void device_codec_init(struct pm860x_chip *chip, |
970 | struct pm860x_platform_data *pdata) |
971 | { |
972 | int ret; |
973 | |
974 | codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); |
975 | codec_devs[0].resources = &codec_resources[0], |
976 | ret = mfd_add_devices(parent: chip->dev, id: 0, cells: &codec_devs[0], |
977 | ARRAY_SIZE(codec_devs), mem_base: &codec_resources[0], irq_base: 0, |
978 | NULL); |
979 | if (ret < 0) |
980 | dev_err(chip->dev, "Failed to add codec subdev\n" ); |
981 | } |
982 | |
983 | static void device_8607_init(struct pm860x_chip *chip, |
984 | struct i2c_client *i2c, |
985 | struct pm860x_platform_data *pdata) |
986 | { |
987 | int data, ret; |
988 | |
989 | ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); |
990 | if (ret < 0) { |
991 | dev_err(chip->dev, "Failed to read CHIP ID: %d\n" , ret); |
992 | goto out; |
993 | } |
994 | switch (ret & PM8607_VERSION_MASK) { |
995 | case 0x40: |
996 | case 0x50: |
997 | dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n" , |
998 | ret); |
999 | break; |
1000 | default: |
1001 | dev_err(chip->dev, |
1002 | "Failed to detect Marvell 88PM8607. Chip ID: %02x\n" , |
1003 | ret); |
1004 | goto out; |
1005 | } |
1006 | |
1007 | ret = pm860x_reg_read(i2c, PM8607_BUCK3); |
1008 | if (ret < 0) { |
1009 | dev_err(chip->dev, "Failed to read BUCK3 register: %d\n" , ret); |
1010 | goto out; |
1011 | } |
1012 | if (ret & PM8607_BUCK3_DOUBLE) |
1013 | chip->buck3_double = 1; |
1014 | |
1015 | ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); |
1016 | if (ret < 0) { |
1017 | dev_err(chip->dev, "Failed to read MISC1 register: %d\n" , ret); |
1018 | goto out; |
1019 | } |
1020 | |
1021 | if (pdata && (pdata->i2c_port == PI2C_PORT)) |
1022 | data = PM8607_B0_MISC1_PI2C; |
1023 | else |
1024 | data = 0; |
1025 | ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); |
1026 | if (ret < 0) { |
1027 | dev_err(chip->dev, "Failed to access MISC1:%d\n" , ret); |
1028 | goto out; |
1029 | } |
1030 | |
1031 | ret = device_irq_init(chip, pdata); |
1032 | if (ret < 0) |
1033 | goto out; |
1034 | |
1035 | device_regulator_init(chip, pdata); |
1036 | device_rtc_init(chip, pdata); |
1037 | device_onkey_init(chip, pdata); |
1038 | device_touch_init(chip, pdata); |
1039 | device_power_init(chip, pdata); |
1040 | device_codec_init(chip, pdata); |
1041 | out: |
1042 | return; |
1043 | } |
1044 | |
1045 | static void device_8606_init(struct pm860x_chip *chip, |
1046 | struct i2c_client *i2c, |
1047 | struct pm860x_platform_data *pdata) |
1048 | { |
1049 | device_osc_init(i2c); |
1050 | device_bk_init(chip, pdata); |
1051 | device_led_init(chip, pdata); |
1052 | } |
1053 | |
1054 | static int pm860x_device_init(struct pm860x_chip *chip, |
1055 | struct pm860x_platform_data *pdata) |
1056 | { |
1057 | chip->core_irq = 0; |
1058 | |
1059 | switch (chip->id) { |
1060 | case CHIP_PM8606: |
1061 | device_8606_init(chip, i2c: chip->client, pdata); |
1062 | break; |
1063 | case CHIP_PM8607: |
1064 | device_8607_init(chip, i2c: chip->client, pdata); |
1065 | break; |
1066 | } |
1067 | |
1068 | if (chip->companion) { |
1069 | switch (chip->id) { |
1070 | case CHIP_PM8607: |
1071 | device_8606_init(chip, i2c: chip->companion, pdata); |
1072 | break; |
1073 | case CHIP_PM8606: |
1074 | device_8607_init(chip, i2c: chip->companion, pdata); |
1075 | break; |
1076 | } |
1077 | } |
1078 | |
1079 | return 0; |
1080 | } |
1081 | |
1082 | static void pm860x_device_exit(struct pm860x_chip *chip) |
1083 | { |
1084 | device_irq_exit(chip); |
1085 | mfd_remove_devices(parent: chip->dev); |
1086 | } |
1087 | |
1088 | static int verify_addr(struct i2c_client *i2c) |
1089 | { |
1090 | unsigned short addr_8607[] = {0x30, 0x34}; |
1091 | unsigned short addr_8606[] = {0x10, 0x11}; |
1092 | int size, i; |
1093 | |
1094 | if (i2c == NULL) |
1095 | return 0; |
1096 | size = ARRAY_SIZE(addr_8606); |
1097 | for (i = 0; i < size; i++) { |
1098 | if (i2c->addr == *(addr_8606 + i)) |
1099 | return CHIP_PM8606; |
1100 | } |
1101 | size = ARRAY_SIZE(addr_8607); |
1102 | for (i = 0; i < size; i++) { |
1103 | if (i2c->addr == *(addr_8607 + i)) |
1104 | return CHIP_PM8607; |
1105 | } |
1106 | return 0; |
1107 | } |
1108 | |
1109 | static const struct regmap_config pm860x_regmap_config = { |
1110 | .reg_bits = 8, |
1111 | .val_bits = 8, |
1112 | }; |
1113 | |
1114 | static int pm860x_dt_init(struct device_node *np, |
1115 | struct device *dev, |
1116 | struct pm860x_platform_data *pdata) |
1117 | { |
1118 | int ret; |
1119 | |
1120 | pdata->irq_mode = of_property_read_bool(np, propname: "marvell,88pm860x-irq-read-clr" ); |
1121 | ret = of_property_read_u32(np, propname: "marvell,88pm860x-slave-addr" , |
1122 | out_value: &pdata->companion_addr); |
1123 | if (ret) { |
1124 | dev_err(dev, |
1125 | "Not found \"marvell,88pm860x-slave-addr\" property\n" ); |
1126 | pdata->companion_addr = 0; |
1127 | } |
1128 | return 0; |
1129 | } |
1130 | |
1131 | static int pm860x_probe(struct i2c_client *client) |
1132 | { |
1133 | struct pm860x_platform_data *pdata = dev_get_platdata(dev: &client->dev); |
1134 | struct device_node *node = client->dev.of_node; |
1135 | struct pm860x_chip *chip; |
1136 | int ret; |
1137 | |
1138 | if (node && !pdata) { |
1139 | /* parse DT to get platform data */ |
1140 | pdata = devm_kzalloc(dev: &client->dev, |
1141 | size: sizeof(struct pm860x_platform_data), |
1142 | GFP_KERNEL); |
1143 | if (!pdata) |
1144 | return -ENOMEM; |
1145 | ret = pm860x_dt_init(np: node, dev: &client->dev, pdata); |
1146 | if (ret) |
1147 | return ret; |
1148 | } else if (!pdata) { |
1149 | pr_info("No platform data in %s!\n" , __func__); |
1150 | return -EINVAL; |
1151 | } |
1152 | |
1153 | chip = devm_kzalloc(dev: &client->dev, |
1154 | size: sizeof(struct pm860x_chip), GFP_KERNEL); |
1155 | if (chip == NULL) |
1156 | return -ENOMEM; |
1157 | |
1158 | chip->id = verify_addr(i2c: client); |
1159 | chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); |
1160 | if (IS_ERR(ptr: chip->regmap)) { |
1161 | ret = PTR_ERR(ptr: chip->regmap); |
1162 | dev_err(&client->dev, "Failed to allocate register map: %d\n" , |
1163 | ret); |
1164 | return ret; |
1165 | } |
1166 | chip->client = client; |
1167 | i2c_set_clientdata(client, data: chip); |
1168 | chip->dev = &client->dev; |
1169 | |
1170 | /* |
1171 | * Both client and companion client shares same platform driver. |
1172 | * Driver distinguishes them by pdata->companion_addr. |
1173 | * pdata->companion_addr is only assigned if companion chip exists. |
1174 | * At the same time, the companion_addr shouldn't equal to client |
1175 | * address. |
1176 | */ |
1177 | if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { |
1178 | chip->companion_addr = pdata->companion_addr; |
1179 | chip->companion = i2c_new_dummy_device(adapter: chip->client->adapter, |
1180 | address: chip->companion_addr); |
1181 | if (IS_ERR(ptr: chip->companion)) { |
1182 | dev_err(&client->dev, |
1183 | "Failed to allocate I2C companion device\n" ); |
1184 | return PTR_ERR(ptr: chip->companion); |
1185 | } |
1186 | chip->regmap_companion = regmap_init_i2c(chip->companion, |
1187 | &pm860x_regmap_config); |
1188 | if (IS_ERR(ptr: chip->regmap_companion)) { |
1189 | ret = PTR_ERR(ptr: chip->regmap_companion); |
1190 | dev_err(&chip->companion->dev, |
1191 | "Failed to allocate register map: %d\n" , ret); |
1192 | i2c_unregister_device(client: chip->companion); |
1193 | return ret; |
1194 | } |
1195 | i2c_set_clientdata(client: chip->companion, data: chip); |
1196 | } |
1197 | |
1198 | pm860x_device_init(chip, pdata); |
1199 | return 0; |
1200 | } |
1201 | |
1202 | static void pm860x_remove(struct i2c_client *client) |
1203 | { |
1204 | struct pm860x_chip *chip = i2c_get_clientdata(client); |
1205 | |
1206 | pm860x_device_exit(chip); |
1207 | if (chip->companion) { |
1208 | regmap_exit(map: chip->regmap_companion); |
1209 | i2c_unregister_device(client: chip->companion); |
1210 | } |
1211 | } |
1212 | |
1213 | static int pm860x_suspend(struct device *dev) |
1214 | { |
1215 | struct i2c_client *client = to_i2c_client(dev); |
1216 | struct pm860x_chip *chip = i2c_get_clientdata(client); |
1217 | |
1218 | if (device_may_wakeup(dev) && chip->wakeup_flag) |
1219 | enable_irq_wake(irq: chip->core_irq); |
1220 | return 0; |
1221 | } |
1222 | |
1223 | static int pm860x_resume(struct device *dev) |
1224 | { |
1225 | struct i2c_client *client = to_i2c_client(dev); |
1226 | struct pm860x_chip *chip = i2c_get_clientdata(client); |
1227 | |
1228 | if (device_may_wakeup(dev) && chip->wakeup_flag) |
1229 | disable_irq_wake(irq: chip->core_irq); |
1230 | return 0; |
1231 | } |
1232 | |
1233 | static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); |
1234 | |
1235 | static const struct i2c_device_id pm860x_id_table[] = { |
1236 | { "88PM860x" , 0 }, |
1237 | {} |
1238 | }; |
1239 | MODULE_DEVICE_TABLE(i2c, pm860x_id_table); |
1240 | |
1241 | static const struct of_device_id pm860x_dt_ids[] = { |
1242 | { .compatible = "marvell,88pm860x" , }, |
1243 | {}, |
1244 | }; |
1245 | MODULE_DEVICE_TABLE(of, pm860x_dt_ids); |
1246 | |
1247 | static struct i2c_driver pm860x_driver = { |
1248 | .driver = { |
1249 | .name = "88PM860x" , |
1250 | .pm = pm_sleep_ptr(&pm860x_pm_ops), |
1251 | .of_match_table = pm860x_dt_ids, |
1252 | }, |
1253 | .probe = pm860x_probe, |
1254 | .remove = pm860x_remove, |
1255 | .id_table = pm860x_id_table, |
1256 | }; |
1257 | |
1258 | static int __init pm860x_i2c_init(void) |
1259 | { |
1260 | int ret; |
1261 | |
1262 | ret = i2c_add_driver(&pm860x_driver); |
1263 | if (ret != 0) |
1264 | pr_err("Failed to register 88PM860x I2C driver: %d\n" , ret); |
1265 | return ret; |
1266 | } |
1267 | subsys_initcall(pm860x_i2c_init); |
1268 | |
1269 | static void __exit pm860x_i2c_exit(void) |
1270 | { |
1271 | i2c_del_driver(driver: &pm860x_driver); |
1272 | } |
1273 | module_exit(pm860x_i2c_exit); |
1274 | |
1275 | MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x" ); |
1276 | MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>" ); |
1277 | |