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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * TI Palmas MFD Driver
4 *
5 * Copyright 2011-2012 Texas Instruments Inc.
6 *
7 * Author: Graeme Gregory <gg@slimlogic.co.uk>
8 */
9
10#include <linux/module.h>
11#include <linux/moduleparam.h>
12#include <linux/init.h>
13#include <linux/slab.h>
14#include <linux/i2c.h>
15#include <linux/interrupt.h>
16#include <linux/irq.h>
17#include <linux/regmap.h>
18#include <linux/err.h>
19#include <linux/mfd/core.h>
20#include <linux/mfd/palmas.h>
21#include <linux/of_device.h>
22
23static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
24 {
25 .reg_bits = 8,
26 .val_bits = 8,
27 .max_register = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
28 PALMAS_PRIMARY_SECONDARY_PAD3),
29 },
30 {
31 .reg_bits = 8,
32 .val_bits = 8,
33 .max_register = PALMAS_BASE_TO_REG(PALMAS_GPADC_BASE,
34 PALMAS_GPADC_SMPS_VSEL_MONITORING),
35 },
36 {
37 .reg_bits = 8,
38 .val_bits = 8,
39 .max_register = PALMAS_BASE_TO_REG(PALMAS_TRIM_GPADC_BASE,
40 PALMAS_GPADC_TRIM16),
41 },
42};
43
44static const struct regmap_irq tps65917_irqs[] = {
45 /* INT1 IRQs */
46 [TPS65917_RESERVED1] = {
47 .mask = TPS65917_RESERVED,
48 },
49 [TPS65917_PWRON_IRQ] = {
50 .mask = TPS65917_INT1_STATUS_PWRON,
51 },
52 [TPS65917_LONG_PRESS_KEY_IRQ] = {
53 .mask = TPS65917_INT1_STATUS_LONG_PRESS_KEY,
54 },
55 [TPS65917_RESERVED2] = {
56 .mask = TPS65917_RESERVED,
57 },
58 [TPS65917_PWRDOWN_IRQ] = {
59 .mask = TPS65917_INT1_STATUS_PWRDOWN,
60 },
61 [TPS65917_HOTDIE_IRQ] = {
62 .mask = TPS65917_INT1_STATUS_HOTDIE,
63 },
64 [TPS65917_VSYS_MON_IRQ] = {
65 .mask = TPS65917_INT1_STATUS_VSYS_MON,
66 },
67 [TPS65917_RESERVED3] = {
68 .mask = TPS65917_RESERVED,
69 },
70 /* INT2 IRQs*/
71 [TPS65917_RESERVED4] = {
72 .mask = TPS65917_RESERVED,
73 .reg_offset = 1,
74 },
75 [TPS65917_OTP_ERROR_IRQ] = {
76 .mask = TPS65917_INT2_STATUS_OTP_ERROR,
77 .reg_offset = 1,
78 },
79 [TPS65917_WDT_IRQ] = {
80 .mask = TPS65917_INT2_STATUS_WDT,
81 .reg_offset = 1,
82 },
83 [TPS65917_RESERVED5] = {
84 .mask = TPS65917_RESERVED,
85 .reg_offset = 1,
86 },
87 [TPS65917_RESET_IN_IRQ] = {
88 .mask = TPS65917_INT2_STATUS_RESET_IN,
89 .reg_offset = 1,
90 },
91 [TPS65917_FSD_IRQ] = {
92 .mask = TPS65917_INT2_STATUS_FSD,
93 .reg_offset = 1,
94 },
95 [TPS65917_SHORT_IRQ] = {
96 .mask = TPS65917_INT2_STATUS_SHORT,
97 .reg_offset = 1,
98 },
99 [TPS65917_RESERVED6] = {
100 .mask = TPS65917_RESERVED,
101 .reg_offset = 1,
102 },
103 /* INT3 IRQs */
104 [TPS65917_GPADC_AUTO_0_IRQ] = {
105 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_0,
106 .reg_offset = 2,
107 },
108 [TPS65917_GPADC_AUTO_1_IRQ] = {
109 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_1,
110 .reg_offset = 2,
111 },
112 [TPS65917_GPADC_EOC_SW_IRQ] = {
113 .mask = TPS65917_INT3_STATUS_GPADC_EOC_SW,
114 .reg_offset = 2,
115 },
116 [TPS65917_RESREVED6] = {
117 .mask = TPS65917_RESERVED6,
118 .reg_offset = 2,
119 },
120 [TPS65917_RESERVED7] = {
121 .mask = TPS65917_RESERVED,
122 .reg_offset = 2,
123 },
124 [TPS65917_RESERVED8] = {
125 .mask = TPS65917_RESERVED,
126 .reg_offset = 2,
127 },
128 [TPS65917_RESERVED9] = {
129 .mask = TPS65917_RESERVED,
130 .reg_offset = 2,
131 },
132 [TPS65917_VBUS_IRQ] = {
133 .mask = TPS65917_INT3_STATUS_VBUS,
134 .reg_offset = 2,
135 },
136 /* INT4 IRQs */
137 [TPS65917_GPIO_0_IRQ] = {
138 .mask = TPS65917_INT4_STATUS_GPIO_0,
139 .reg_offset = 3,
140 },
141 [TPS65917_GPIO_1_IRQ] = {
142 .mask = TPS65917_INT4_STATUS_GPIO_1,
143 .reg_offset = 3,
144 },
145 [TPS65917_GPIO_2_IRQ] = {
146 .mask = TPS65917_INT4_STATUS_GPIO_2,
147 .reg_offset = 3,
148 },
149 [TPS65917_GPIO_3_IRQ] = {
150 .mask = TPS65917_INT4_STATUS_GPIO_3,
151 .reg_offset = 3,
152 },
153 [TPS65917_GPIO_4_IRQ] = {
154 .mask = TPS65917_INT4_STATUS_GPIO_4,
155 .reg_offset = 3,
156 },
157 [TPS65917_GPIO_5_IRQ] = {
158 .mask = TPS65917_INT4_STATUS_GPIO_5,
159 .reg_offset = 3,
160 },
161 [TPS65917_GPIO_6_IRQ] = {
162 .mask = TPS65917_INT4_STATUS_GPIO_6,
163 .reg_offset = 3,
164 },
165 [TPS65917_RESERVED10] = {
166 .mask = TPS65917_RESERVED10,
167 .reg_offset = 3,
168 },
169};
170
171static const struct regmap_irq palmas_irqs[] = {
172 /* INT1 IRQs */
173 [PALMAS_CHARG_DET_N_VBUS_OVV_IRQ] = {
174 .mask = PALMAS_INT1_STATUS_CHARG_DET_N_VBUS_OVV,
175 },
176 [PALMAS_PWRON_IRQ] = {
177 .mask = PALMAS_INT1_STATUS_PWRON,
178 },
179 [PALMAS_LONG_PRESS_KEY_IRQ] = {
180 .mask = PALMAS_INT1_STATUS_LONG_PRESS_KEY,
181 },
182 [PALMAS_RPWRON_IRQ] = {
183 .mask = PALMAS_INT1_STATUS_RPWRON,
184 },
185 [PALMAS_PWRDOWN_IRQ] = {
186 .mask = PALMAS_INT1_STATUS_PWRDOWN,
187 },
188 [PALMAS_HOTDIE_IRQ] = {
189 .mask = PALMAS_INT1_STATUS_HOTDIE,
190 },
191 [PALMAS_VSYS_MON_IRQ] = {
192 .mask = PALMAS_INT1_STATUS_VSYS_MON,
193 },
194 [PALMAS_VBAT_MON_IRQ] = {
195 .mask = PALMAS_INT1_STATUS_VBAT_MON,
196 },
197 /* INT2 IRQs*/
198 [PALMAS_RTC_ALARM_IRQ] = {
199 .mask = PALMAS_INT2_STATUS_RTC_ALARM,
200 .reg_offset = 1,
201 },
202 [PALMAS_RTC_TIMER_IRQ] = {
203 .mask = PALMAS_INT2_STATUS_RTC_TIMER,
204 .reg_offset = 1,
205 },
206 [PALMAS_WDT_IRQ] = {
207 .mask = PALMAS_INT2_STATUS_WDT,
208 .reg_offset = 1,
209 },
210 [PALMAS_BATREMOVAL_IRQ] = {
211 .mask = PALMAS_INT2_STATUS_BATREMOVAL,
212 .reg_offset = 1,
213 },
214 [PALMAS_RESET_IN_IRQ] = {
215 .mask = PALMAS_INT2_STATUS_RESET_IN,
216 .reg_offset = 1,
217 },
218 [PALMAS_FBI_BB_IRQ] = {
219 .mask = PALMAS_INT2_STATUS_FBI_BB,
220 .reg_offset = 1,
221 },
222 [PALMAS_SHORT_IRQ] = {
223 .mask = PALMAS_INT2_STATUS_SHORT,
224 .reg_offset = 1,
225 },
226 [PALMAS_VAC_ACOK_IRQ] = {
227 .mask = PALMAS_INT2_STATUS_VAC_ACOK,
228 .reg_offset = 1,
229 },
230 /* INT3 IRQs */
231 [PALMAS_GPADC_AUTO_0_IRQ] = {
232 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_0,
233 .reg_offset = 2,
234 },
235 [PALMAS_GPADC_AUTO_1_IRQ] = {
236 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_1,
237 .reg_offset = 2,
238 },
239 [PALMAS_GPADC_EOC_SW_IRQ] = {
240 .mask = PALMAS_INT3_STATUS_GPADC_EOC_SW,
241 .reg_offset = 2,
242 },
243 [PALMAS_GPADC_EOC_RT_IRQ] = {
244 .mask = PALMAS_INT3_STATUS_GPADC_EOC_RT,
245 .reg_offset = 2,
246 },
247 [PALMAS_ID_OTG_IRQ] = {
248 .mask = PALMAS_INT3_STATUS_ID_OTG,
249 .reg_offset = 2,
250 },
251 [PALMAS_ID_IRQ] = {
252 .mask = PALMAS_INT3_STATUS_ID,
253 .reg_offset = 2,
254 },
255 [PALMAS_VBUS_OTG_IRQ] = {
256 .mask = PALMAS_INT3_STATUS_VBUS_OTG,
257 .reg_offset = 2,
258 },
259 [PALMAS_VBUS_IRQ] = {
260 .mask = PALMAS_INT3_STATUS_VBUS,
261 .reg_offset = 2,
262 },
263 /* INT4 IRQs */
264 [PALMAS_GPIO_0_IRQ] = {
265 .mask = PALMAS_INT4_STATUS_GPIO_0,
266 .reg_offset = 3,
267 },
268 [PALMAS_GPIO_1_IRQ] = {
269 .mask = PALMAS_INT4_STATUS_GPIO_1,
270 .reg_offset = 3,
271 },
272 [PALMAS_GPIO_2_IRQ] = {
273 .mask = PALMAS_INT4_STATUS_GPIO_2,
274 .reg_offset = 3,
275 },
276 [PALMAS_GPIO_3_IRQ] = {
277 .mask = PALMAS_INT4_STATUS_GPIO_3,
278 .reg_offset = 3,
279 },
280 [PALMAS_GPIO_4_IRQ] = {
281 .mask = PALMAS_INT4_STATUS_GPIO_4,
282 .reg_offset = 3,
283 },
284 [PALMAS_GPIO_5_IRQ] = {
285 .mask = PALMAS_INT4_STATUS_GPIO_5,
286 .reg_offset = 3,
287 },
288 [PALMAS_GPIO_6_IRQ] = {
289 .mask = PALMAS_INT4_STATUS_GPIO_6,
290 .reg_offset = 3,
291 },
292 [PALMAS_GPIO_7_IRQ] = {
293 .mask = PALMAS_INT4_STATUS_GPIO_7,
294 .reg_offset = 3,
295 },
296};
297
298static struct regmap_irq_chip palmas_irq_chip = {
299 .name = "palmas",
300 .irqs = palmas_irqs,
301 .num_irqs = ARRAY_SIZE(palmas_irqs),
302
303 .num_regs = 4,
304 .irq_reg_stride = 5,
305 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
306 PALMAS_INT1_STATUS),
307 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
308 PALMAS_INT1_MASK),
309};
310
311static struct regmap_irq_chip tps65917_irq_chip = {
312 .name = "tps65917",
313 .irqs = tps65917_irqs,
314 .num_irqs = ARRAY_SIZE(tps65917_irqs),
315
316 .num_regs = 4,
317 .irq_reg_stride = 5,
318 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
319 PALMAS_INT1_STATUS),
320 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
321 PALMAS_INT1_MASK),
322};
323
324int palmas_ext_control_req_config(struct palmas *palmas,
325 enum palmas_external_requestor_id id, int ext_ctrl, bool enable)
326{
327 struct palmas_pmic_driver_data *pmic_ddata = palmas->pmic_ddata;
328 int preq_mask_bit = 0;
329 int reg_add = 0;
330 int bit_pos, ret;
331
332 if (!(ext_ctrl & PALMAS_EXT_REQ))
333 return 0;
334
335 if (id >= PALMAS_EXTERNAL_REQSTR_ID_MAX)
336 return 0;
337
338 if (ext_ctrl & PALMAS_EXT_CONTROL_NSLEEP) {
339 reg_add = PALMAS_NSLEEP_RES_ASSIGN;
340 preq_mask_bit = 0;
341 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE1) {
342 reg_add = PALMAS_ENABLE1_RES_ASSIGN;
343 preq_mask_bit = 1;
344 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE2) {
345 reg_add = PALMAS_ENABLE2_RES_ASSIGN;
346 preq_mask_bit = 2;
347 }
348
349 bit_pos = pmic_ddata->sleep_req_info[id].bit_pos;
350 reg_add += pmic_ddata->sleep_req_info[id].reg_offset;
351 if (enable)
352 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
353 reg_add, BIT(bit_pos), BIT(bit_pos));
354 else
355 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
356 reg_add, BIT(bit_pos), 0);
357 if (ret < 0) {
358 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
359 reg_add, ret);
360 return ret;
361 }
362
363 /* Unmask the PREQ */
364 ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
365 PALMAS_POWER_CTRL, BIT(preq_mask_bit), 0);
366 if (ret < 0) {
367 dev_err(palmas->dev, "POWER_CTRL register update failed %d\n",
368 ret);
369 return ret;
370 }
371 return ret;
372}
373EXPORT_SYMBOL_GPL(palmas_ext_control_req_config);
374
375static int palmas_set_pdata_irq_flag(struct i2c_client *i2c,
376 struct palmas_platform_data *pdata)
377{
378 struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
379 if (!irq_data) {
380 dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
381 return -EINVAL;
382 }
383
384 pdata->irq_flags = irqd_get_trigger_type(irq_data);
385 dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags);
386 return 0;
387}
388
389static void palmas_dt_to_pdata(struct i2c_client *i2c,
390 struct palmas_platform_data *pdata)
391{
392 struct device_node *node = i2c->dev.of_node;
393 int ret;
394 u32 prop;
395
396 ret = of_property_read_u32(node, "ti,mux-pad1", &prop);
397 if (!ret) {
398 pdata->mux_from_pdata = 1;
399 pdata->pad1 = prop;
400 }
401
402 ret = of_property_read_u32(node, "ti,mux-pad2", &prop);
403 if (!ret) {
404 pdata->mux_from_pdata = 1;
405 pdata->pad2 = prop;
406 }
407
408 /* The default for this register is all masked */
409 ret = of_property_read_u32(node, "ti,power-ctrl", &prop);
410 if (!ret)
411 pdata->power_ctrl = prop;
412 else
413 pdata->power_ctrl = PALMAS_POWER_CTRL_NSLEEP_MASK |
414 PALMAS_POWER_CTRL_ENABLE1_MASK |
415 PALMAS_POWER_CTRL_ENABLE2_MASK;
416 if (i2c->irq)
417 palmas_set_pdata_irq_flag(i2c, pdata);
418
419 pdata->pm_off = of_property_read_bool(node,
420 "ti,system-power-controller");
421}
422
423static struct palmas *palmas_dev;
424static void palmas_power_off(void)
425{
426 unsigned int addr;
427 int ret, slave;
428 u8 powerhold_mask;
429 struct device_node *np = palmas_dev->dev->of_node;
430
431 if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
432 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
433 PALMAS_PRIMARY_SECONDARY_PAD2);
434 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
435
436 if (of_device_is_compatible(np, "ti,tps65917"))
437 powerhold_mask =
438 TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK;
439 else
440 powerhold_mask =
441 PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK;
442
443 ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
444 powerhold_mask, 0);
445 if (ret)
446 dev_err(palmas_dev->dev,
447 "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
448 ret);
449 }
450
451 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
452 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
453
454 ret = regmap_update_bits(
455 palmas_dev->regmap[slave],
456 addr,
457 PALMAS_DEV_CTRL_DEV_ON,
458 0);
459
460 if (ret)
461 pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
462 __func__, ret);
463}
464
465static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
466static unsigned int tps659038_features;
467
468struct palmas_driver_data {
469 unsigned int *features;
470 struct regmap_irq_chip *irq_chip;
471};
472
473static struct palmas_driver_data palmas_data = {
474 .features = &palmas_features,
475 .irq_chip = &palmas_irq_chip,
476};
477
478static struct palmas_driver_data tps659038_data = {
479 .features = &tps659038_features,
480 .irq_chip = &palmas_irq_chip,
481};
482
483static struct palmas_driver_data tps65917_data = {
484 .features = &tps659038_features,
485 .irq_chip = &tps65917_irq_chip,
486};
487
488static const struct of_device_id of_palmas_match_tbl[] = {
489 {
490 .compatible = "ti,palmas",
491 .data = &palmas_data,
492 },
493 {
494 .compatible = "ti,tps659038",
495 .data = &tps659038_data,
496 },
497 {
498 .compatible = "ti,tps65917",
499 .data = &tps65917_data,
500 },
501 { },
502};
503MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
504
505static int palmas_i2c_probe(struct i2c_client *i2c,
506 const struct i2c_device_id *id)
507{
508 struct palmas *palmas;
509 struct palmas_platform_data *pdata;
510 struct palmas_driver_data *driver_data;
511 struct device_node *node = i2c->dev.of_node;
512 int ret = 0, i;
513 unsigned int reg, addr;
514 int slave;
515 const struct of_device_id *match;
516
517 pdata = dev_get_platdata(&i2c->dev);
518
519 if (node && !pdata) {
520 pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
521
522 if (!pdata)
523 return -ENOMEM;
524
525 palmas_dt_to_pdata(i2c, pdata);
526 }
527
528 if (!pdata)
529 return -EINVAL;
530
531 palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL);
532 if (palmas == NULL)
533 return -ENOMEM;
534
535 i2c_set_clientdata(i2c, palmas);
536 palmas->dev = &i2c->dev;
537 palmas->irq = i2c->irq;
538
539 match = of_match_device(of_palmas_match_tbl, &i2c->dev);
540
541 if (!match)
542 return -ENODATA;
543
544 driver_data = (struct palmas_driver_data *)match->data;
545 palmas->features = *driver_data->features;
546
547 for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
548 if (i == 0)
549 palmas->i2c_clients[i] = i2c;
550 else {
551 palmas->i2c_clients[i] =
552 i2c_new_dummy_device(i2c->adapter,
553 i2c->addr + i);
554 if (IS_ERR(palmas->i2c_clients[i])) {
555 dev_err(palmas->dev,
556 "can't attach client %d\n", i);
557 ret = PTR_ERR(palmas->i2c_clients[i]);
558 goto err_i2c;
559 }
560 palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
561 }
562 palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
563 &palmas_regmap_config[i]);
564 if (IS_ERR(palmas->regmap[i])) {
565 ret = PTR_ERR(palmas->regmap[i]);
566 dev_err(palmas->dev,
567 "Failed to allocate regmap %d, err: %d\n",
568 i, ret);
569 goto err_i2c;
570 }
571 }
572
573 if (!palmas->irq) {
574 dev_warn(palmas->dev, "IRQ missing: skipping irq request\n");
575 goto no_irq;
576 }
577
578 /* Change interrupt line output polarity */
579 if (pdata->irq_flags & IRQ_TYPE_LEVEL_HIGH)
580 reg = PALMAS_POLARITY_CTRL_INT_POLARITY;
581 else
582 reg = 0;
583 ret = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
584 PALMAS_POLARITY_CTRL, PALMAS_POLARITY_CTRL_INT_POLARITY,
585 reg);
586 if (ret < 0) {
587 dev_err(palmas->dev, "POLARITY_CTRL update failed: %d\n", ret);
588 goto err_i2c;
589 }
590
591 /* Change IRQ into clear on read mode for efficiency */
592 slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
593 addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
594 reg = PALMAS_INT_CTRL_INT_CLEAR;
595
596 regmap_write(palmas->regmap[slave], addr, reg);
597
598 ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
599 IRQF_ONESHOT | pdata->irq_flags, 0,
600 driver_data->irq_chip, &palmas->irq_data);
601 if (ret < 0)
602 goto err_i2c;
603
604no_irq:
605 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
606 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
607 PALMAS_PRIMARY_SECONDARY_PAD1);
608
609 if (pdata->mux_from_pdata) {
610 reg = pdata->pad1;
611 ret = regmap_write(palmas->regmap[slave], addr, reg);
612 if (ret)
613 goto err_irq;
614 } else {
615 ret = regmap_read(palmas->regmap[slave], addr, ®);
616 if (ret)
617 goto err_irq;
618 }
619
620 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_0))
621 palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED;
622 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK))
623 palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED;
624 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
625 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
626 palmas->led_muxed |= PALMAS_LED1_MUXED;
627 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
628 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
629 palmas->pwm_muxed |= PALMAS_PWM1_MUXED;
630 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK))
631 palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED;
632 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
633 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
634 palmas->led_muxed |= PALMAS_LED2_MUXED;
635 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
636 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
637 palmas->pwm_muxed |= PALMAS_PWM2_MUXED;
638 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_3))
639 palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED;
640
641 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
642 PALMAS_PRIMARY_SECONDARY_PAD2);
643
644 if (pdata->mux_from_pdata) {
645 reg = pdata->pad2;
646 ret = regmap_write(palmas->regmap[slave], addr, reg);
647 if (ret)
648 goto err_irq;
649 } else {
650 ret = regmap_read(palmas->regmap[slave], addr, ®);
651 if (ret)
652 goto err_irq;
653 }
654
655 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_4))
656 palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED;
657 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK))
658 palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED;
659 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_6))
660 palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED;
661 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK))
662 palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED;
663
664 dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n",
665 palmas->gpio_muxed, palmas->pwm_muxed,
666 palmas->led_muxed);
667
668 reg = pdata->power_ctrl;
669
670 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
671 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL);
672
673 ret = regmap_write(palmas->regmap[slave], addr, reg);
674 if (ret)
675 goto err_irq;
676
677 /*
678 * If we are probing with DT do this the DT way and return here
679 * otherwise continue and add devices using mfd helpers.
680 */
681 if (node) {
682 ret = devm_of_platform_populate(&i2c->dev);
683 if (ret < 0) {
684 goto err_irq;
685 } else if (pdata->pm_off && !pm_power_off) {
686 palmas_dev = palmas;
687 pm_power_off = palmas_power_off;
688 }
689 }
690
691 return ret;
692
693err_irq:
694 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
695err_i2c:
696 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
697 if (palmas->i2c_clients[i])
698 i2c_unregister_device(palmas->i2c_clients[i]);
699 }
700 return ret;
701}
702
703static int palmas_i2c_remove(struct i2c_client *i2c)
704{
705 struct palmas *palmas = i2c_get_clientdata(i2c);
706 int i;
707
708 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
709
710 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
711 if (palmas->i2c_clients[i])
712 i2c_unregister_device(palmas->i2c_clients[i]);
713 }
714
715 if (palmas == palmas_dev) {
716 pm_power_off = NULL;
717 palmas_dev = NULL;
718 }
719
720 return 0;
721}
722
723static const struct i2c_device_id palmas_i2c_id[] = {
724 { "palmas", },
725 { "twl6035", },
726 { "twl6037", },
727 { "tps65913", },
728 { /* end */ }
729};
730MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
731
732static struct i2c_driver palmas_i2c_driver = {
733 .driver = {
734 .name = "palmas",
735 .of_match_table = of_palmas_match_tbl,
736 },
737 .probe = palmas_i2c_probe,
738 .remove = palmas_i2c_remove,
739 .id_table = palmas_i2c_id,
740};
741
742static int __init palmas_i2c_init(void)
743{
744 return i2c_add_driver(&palmas_i2c_driver);
745}
746/* init early so consumer devices can complete system boot */
747subsys_initcall(palmas_i2c_init);
748
749static void __exit palmas_i2c_exit(void)
750{
751 i2c_del_driver(&palmas_i2c_driver);
752}
753module_exit(palmas_i2c_exit);
754
755MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
756MODULE_DESCRIPTION("Palmas chip family multi-function driver");
757MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * TI Palmas MFD Driver
4 *
5 * Copyright 2011-2012 Texas Instruments Inc.
6 *
7 * Author: Graeme Gregory <gg@slimlogic.co.uk>
8 */
9
10#include <linux/module.h>
11#include <linux/moduleparam.h>
12#include <linux/init.h>
13#include <linux/slab.h>
14#include <linux/i2c.h>
15#include <linux/interrupt.h>
16#include <linux/irq.h>
17#include <linux/regmap.h>
18#include <linux/err.h>
19#include <linux/mfd/core.h>
20#include <linux/mfd/palmas.h>
21#include <linux/of_device.h>
22
23static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
24 {
25 .reg_bits = 8,
26 .val_bits = 8,
27 .max_register = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
28 PALMAS_PRIMARY_SECONDARY_PAD3),
29 },
30 {
31 .reg_bits = 8,
32 .val_bits = 8,
33 .max_register = PALMAS_BASE_TO_REG(PALMAS_GPADC_BASE,
34 PALMAS_GPADC_SMPS_VSEL_MONITORING),
35 },
36 {
37 .reg_bits = 8,
38 .val_bits = 8,
39 .max_register = PALMAS_BASE_TO_REG(PALMAS_TRIM_GPADC_BASE,
40 PALMAS_GPADC_TRIM16),
41 },
42};
43
44static const struct regmap_irq tps65917_irqs[] = {
45 /* INT1 IRQs */
46 [TPS65917_RESERVED1] = {
47 .mask = TPS65917_RESERVED,
48 },
49 [TPS65917_PWRON_IRQ] = {
50 .mask = TPS65917_INT1_STATUS_PWRON,
51 },
52 [TPS65917_LONG_PRESS_KEY_IRQ] = {
53 .mask = TPS65917_INT1_STATUS_LONG_PRESS_KEY,
54 },
55 [TPS65917_RESERVED2] = {
56 .mask = TPS65917_RESERVED,
57 },
58 [TPS65917_PWRDOWN_IRQ] = {
59 .mask = TPS65917_INT1_STATUS_PWRDOWN,
60 },
61 [TPS65917_HOTDIE_IRQ] = {
62 .mask = TPS65917_INT1_STATUS_HOTDIE,
63 },
64 [TPS65917_VSYS_MON_IRQ] = {
65 .mask = TPS65917_INT1_STATUS_VSYS_MON,
66 },
67 [TPS65917_RESERVED3] = {
68 .mask = TPS65917_RESERVED,
69 },
70 /* INT2 IRQs*/
71 [TPS65917_RESERVED4] = {
72 .mask = TPS65917_RESERVED,
73 .reg_offset = 1,
74 },
75 [TPS65917_OTP_ERROR_IRQ] = {
76 .mask = TPS65917_INT2_STATUS_OTP_ERROR,
77 .reg_offset = 1,
78 },
79 [TPS65917_WDT_IRQ] = {
80 .mask = TPS65917_INT2_STATUS_WDT,
81 .reg_offset = 1,
82 },
83 [TPS65917_RESERVED5] = {
84 .mask = TPS65917_RESERVED,
85 .reg_offset = 1,
86 },
87 [TPS65917_RESET_IN_IRQ] = {
88 .mask = TPS65917_INT2_STATUS_RESET_IN,
89 .reg_offset = 1,
90 },
91 [TPS65917_FSD_IRQ] = {
92 .mask = TPS65917_INT2_STATUS_FSD,
93 .reg_offset = 1,
94 },
95 [TPS65917_SHORT_IRQ] = {
96 .mask = TPS65917_INT2_STATUS_SHORT,
97 .reg_offset = 1,
98 },
99 [TPS65917_RESERVED6] = {
100 .mask = TPS65917_RESERVED,
101 .reg_offset = 1,
102 },
103 /* INT3 IRQs */
104 [TPS65917_GPADC_AUTO_0_IRQ] = {
105 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_0,
106 .reg_offset = 2,
107 },
108 [TPS65917_GPADC_AUTO_1_IRQ] = {
109 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_1,
110 .reg_offset = 2,
111 },
112 [TPS65917_GPADC_EOC_SW_IRQ] = {
113 .mask = TPS65917_INT3_STATUS_GPADC_EOC_SW,
114 .reg_offset = 2,
115 },
116 [TPS65917_RESREVED6] = {
117 .mask = TPS65917_RESERVED6,
118 .reg_offset = 2,
119 },
120 [TPS65917_RESERVED7] = {
121 .mask = TPS65917_RESERVED,
122 .reg_offset = 2,
123 },
124 [TPS65917_RESERVED8] = {
125 .mask = TPS65917_RESERVED,
126 .reg_offset = 2,
127 },
128 [TPS65917_RESERVED9] = {
129 .mask = TPS65917_RESERVED,
130 .reg_offset = 2,
131 },
132 [TPS65917_VBUS_IRQ] = {
133 .mask = TPS65917_INT3_STATUS_VBUS,
134 .reg_offset = 2,
135 },
136 /* INT4 IRQs */
137 [TPS65917_GPIO_0_IRQ] = {
138 .mask = TPS65917_INT4_STATUS_GPIO_0,
139 .reg_offset = 3,
140 },
141 [TPS65917_GPIO_1_IRQ] = {
142 .mask = TPS65917_INT4_STATUS_GPIO_1,
143 .reg_offset = 3,
144 },
145 [TPS65917_GPIO_2_IRQ] = {
146 .mask = TPS65917_INT4_STATUS_GPIO_2,
147 .reg_offset = 3,
148 },
149 [TPS65917_GPIO_3_IRQ] = {
150 .mask = TPS65917_INT4_STATUS_GPIO_3,
151 .reg_offset = 3,
152 },
153 [TPS65917_GPIO_4_IRQ] = {
154 .mask = TPS65917_INT4_STATUS_GPIO_4,
155 .reg_offset = 3,
156 },
157 [TPS65917_GPIO_5_IRQ] = {
158 .mask = TPS65917_INT4_STATUS_GPIO_5,
159 .reg_offset = 3,
160 },
161 [TPS65917_GPIO_6_IRQ] = {
162 .mask = TPS65917_INT4_STATUS_GPIO_6,
163 .reg_offset = 3,
164 },
165 [TPS65917_RESERVED10] = {
166 .mask = TPS65917_RESERVED10,
167 .reg_offset = 3,
168 },
169};
170
171static const struct regmap_irq palmas_irqs[] = {
172 /* INT1 IRQs */
173 [PALMAS_CHARG_DET_N_VBUS_OVV_IRQ] = {
174 .mask = PALMAS_INT1_STATUS_CHARG_DET_N_VBUS_OVV,
175 },
176 [PALMAS_PWRON_IRQ] = {
177 .mask = PALMAS_INT1_STATUS_PWRON,
178 },
179 [PALMAS_LONG_PRESS_KEY_IRQ] = {
180 .mask = PALMAS_INT1_STATUS_LONG_PRESS_KEY,
181 },
182 [PALMAS_RPWRON_IRQ] = {
183 .mask = PALMAS_INT1_STATUS_RPWRON,
184 },
185 [PALMAS_PWRDOWN_IRQ] = {
186 .mask = PALMAS_INT1_STATUS_PWRDOWN,
187 },
188 [PALMAS_HOTDIE_IRQ] = {
189 .mask = PALMAS_INT1_STATUS_HOTDIE,
190 },
191 [PALMAS_VSYS_MON_IRQ] = {
192 .mask = PALMAS_INT1_STATUS_VSYS_MON,
193 },
194 [PALMAS_VBAT_MON_IRQ] = {
195 .mask = PALMAS_INT1_STATUS_VBAT_MON,
196 },
197 /* INT2 IRQs*/
198 [PALMAS_RTC_ALARM_IRQ] = {
199 .mask = PALMAS_INT2_STATUS_RTC_ALARM,
200 .reg_offset = 1,
201 },
202 [PALMAS_RTC_TIMER_IRQ] = {
203 .mask = PALMAS_INT2_STATUS_RTC_TIMER,
204 .reg_offset = 1,
205 },
206 [PALMAS_WDT_IRQ] = {
207 .mask = PALMAS_INT2_STATUS_WDT,
208 .reg_offset = 1,
209 },
210 [PALMAS_BATREMOVAL_IRQ] = {
211 .mask = PALMAS_INT2_STATUS_BATREMOVAL,
212 .reg_offset = 1,
213 },
214 [PALMAS_RESET_IN_IRQ] = {
215 .mask = PALMAS_INT2_STATUS_RESET_IN,
216 .reg_offset = 1,
217 },
218 [PALMAS_FBI_BB_IRQ] = {
219 .mask = PALMAS_INT2_STATUS_FBI_BB,
220 .reg_offset = 1,
221 },
222 [PALMAS_SHORT_IRQ] = {
223 .mask = PALMAS_INT2_STATUS_SHORT,
224 .reg_offset = 1,
225 },
226 [PALMAS_VAC_ACOK_IRQ] = {
227 .mask = PALMAS_INT2_STATUS_VAC_ACOK,
228 .reg_offset = 1,
229 },
230 /* INT3 IRQs */
231 [PALMAS_GPADC_AUTO_0_IRQ] = {
232 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_0,
233 .reg_offset = 2,
234 },
235 [PALMAS_GPADC_AUTO_1_IRQ] = {
236 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_1,
237 .reg_offset = 2,
238 },
239 [PALMAS_GPADC_EOC_SW_IRQ] = {
240 .mask = PALMAS_INT3_STATUS_GPADC_EOC_SW,
241 .reg_offset = 2,
242 },
243 [PALMAS_GPADC_EOC_RT_IRQ] = {
244 .mask = PALMAS_INT3_STATUS_GPADC_EOC_RT,
245 .reg_offset = 2,
246 },
247 [PALMAS_ID_OTG_IRQ] = {
248 .mask = PALMAS_INT3_STATUS_ID_OTG,
249 .reg_offset = 2,
250 },
251 [PALMAS_ID_IRQ] = {
252 .mask = PALMAS_INT3_STATUS_ID,
253 .reg_offset = 2,
254 },
255 [PALMAS_VBUS_OTG_IRQ] = {
256 .mask = PALMAS_INT3_STATUS_VBUS_OTG,
257 .reg_offset = 2,
258 },
259 [PALMAS_VBUS_IRQ] = {
260 .mask = PALMAS_INT3_STATUS_VBUS,
261 .reg_offset = 2,
262 },
263 /* INT4 IRQs */
264 [PALMAS_GPIO_0_IRQ] = {
265 .mask = PALMAS_INT4_STATUS_GPIO_0,
266 .reg_offset = 3,
267 },
268 [PALMAS_GPIO_1_IRQ] = {
269 .mask = PALMAS_INT4_STATUS_GPIO_1,
270 .reg_offset = 3,
271 },
272 [PALMAS_GPIO_2_IRQ] = {
273 .mask = PALMAS_INT4_STATUS_GPIO_2,
274 .reg_offset = 3,
275 },
276 [PALMAS_GPIO_3_IRQ] = {
277 .mask = PALMAS_INT4_STATUS_GPIO_3,
278 .reg_offset = 3,
279 },
280 [PALMAS_GPIO_4_IRQ] = {
281 .mask = PALMAS_INT4_STATUS_GPIO_4,
282 .reg_offset = 3,
283 },
284 [PALMAS_GPIO_5_IRQ] = {
285 .mask = PALMAS_INT4_STATUS_GPIO_5,
286 .reg_offset = 3,
287 },
288 [PALMAS_GPIO_6_IRQ] = {
289 .mask = PALMAS_INT4_STATUS_GPIO_6,
290 .reg_offset = 3,
291 },
292 [PALMAS_GPIO_7_IRQ] = {
293 .mask = PALMAS_INT4_STATUS_GPIO_7,
294 .reg_offset = 3,
295 },
296};
297
298static struct regmap_irq_chip palmas_irq_chip = {
299 .name = "palmas",
300 .irqs = palmas_irqs,
301 .num_irqs = ARRAY_SIZE(palmas_irqs),
302
303 .num_regs = 4,
304 .irq_reg_stride = 5,
305 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
306 PALMAS_INT1_STATUS),
307 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
308 PALMAS_INT1_MASK),
309};
310
311static struct regmap_irq_chip tps65917_irq_chip = {
312 .name = "tps65917",
313 .irqs = tps65917_irqs,
314 .num_irqs = ARRAY_SIZE(tps65917_irqs),
315
316 .num_regs = 4,
317 .irq_reg_stride = 5,
318 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
319 PALMAS_INT1_STATUS),
320 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
321 PALMAS_INT1_MASK),
322};
323
324int palmas_ext_control_req_config(struct palmas *palmas,
325 enum palmas_external_requestor_id id, int ext_ctrl, bool enable)
326{
327 struct palmas_pmic_driver_data *pmic_ddata = palmas->pmic_ddata;
328 int preq_mask_bit = 0;
329 int reg_add = 0;
330 int bit_pos, ret;
331
332 if (!(ext_ctrl & PALMAS_EXT_REQ))
333 return 0;
334
335 if (id >= PALMAS_EXTERNAL_REQSTR_ID_MAX)
336 return 0;
337
338 if (ext_ctrl & PALMAS_EXT_CONTROL_NSLEEP) {
339 reg_add = PALMAS_NSLEEP_RES_ASSIGN;
340 preq_mask_bit = 0;
341 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE1) {
342 reg_add = PALMAS_ENABLE1_RES_ASSIGN;
343 preq_mask_bit = 1;
344 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE2) {
345 reg_add = PALMAS_ENABLE2_RES_ASSIGN;
346 preq_mask_bit = 2;
347 }
348
349 bit_pos = pmic_ddata->sleep_req_info[id].bit_pos;
350 reg_add += pmic_ddata->sleep_req_info[id].reg_offset;
351 if (enable)
352 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
353 reg_add, BIT(bit_pos), BIT(bit_pos));
354 else
355 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
356 reg_add, BIT(bit_pos), 0);
357 if (ret < 0) {
358 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
359 reg_add, ret);
360 return ret;
361 }
362
363 /* Unmask the PREQ */
364 ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
365 PALMAS_POWER_CTRL, BIT(preq_mask_bit), 0);
366 if (ret < 0) {
367 dev_err(palmas->dev, "POWER_CTRL register update failed %d\n",
368 ret);
369 return ret;
370 }
371 return ret;
372}
373EXPORT_SYMBOL_GPL(palmas_ext_control_req_config);
374
375static int palmas_set_pdata_irq_flag(struct i2c_client *i2c,
376 struct palmas_platform_data *pdata)
377{
378 struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
379 if (!irq_data) {
380 dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
381 return -EINVAL;
382 }
383
384 pdata->irq_flags = irqd_get_trigger_type(irq_data);
385 dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags);
386 return 0;
387}
388
389static void palmas_dt_to_pdata(struct i2c_client *i2c,
390 struct palmas_platform_data *pdata)
391{
392 struct device_node *node = i2c->dev.of_node;
393 int ret;
394 u32 prop;
395
396 ret = of_property_read_u32(node, "ti,mux-pad1", &prop);
397 if (!ret) {
398 pdata->mux_from_pdata = 1;
399 pdata->pad1 = prop;
400 }
401
402 ret = of_property_read_u32(node, "ti,mux-pad2", &prop);
403 if (!ret) {
404 pdata->mux_from_pdata = 1;
405 pdata->pad2 = prop;
406 }
407
408 /* The default for this register is all masked */
409 ret = of_property_read_u32(node, "ti,power-ctrl", &prop);
410 if (!ret)
411 pdata->power_ctrl = prop;
412 else
413 pdata->power_ctrl = PALMAS_POWER_CTRL_NSLEEP_MASK |
414 PALMAS_POWER_CTRL_ENABLE1_MASK |
415 PALMAS_POWER_CTRL_ENABLE2_MASK;
416 if (i2c->irq)
417 palmas_set_pdata_irq_flag(i2c, pdata);
418
419 pdata->pm_off = of_property_read_bool(node,
420 "ti,system-power-controller");
421}
422
423static struct palmas *palmas_dev;
424static void palmas_power_off(void)
425{
426 unsigned int addr;
427 int ret, slave;
428 u8 powerhold_mask;
429 struct device_node *np = palmas_dev->dev->of_node;
430
431 if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
432 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
433 PALMAS_PRIMARY_SECONDARY_PAD2);
434 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
435
436 if (of_device_is_compatible(np, "ti,tps65917"))
437 powerhold_mask =
438 TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK;
439 else
440 powerhold_mask =
441 PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK;
442
443 ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
444 powerhold_mask, 0);
445 if (ret)
446 dev_err(palmas_dev->dev,
447 "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
448 ret);
449 }
450
451 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
452 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
453
454 ret = regmap_update_bits(
455 palmas_dev->regmap[slave],
456 addr,
457 PALMAS_DEV_CTRL_DEV_ON,
458 0);
459
460 if (ret)
461 pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
462 __func__, ret);
463}
464
465static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
466static unsigned int tps659038_features;
467
468struct palmas_driver_data {
469 unsigned int *features;
470 struct regmap_irq_chip *irq_chip;
471};
472
473static struct palmas_driver_data palmas_data = {
474 .features = &palmas_features,
475 .irq_chip = &palmas_irq_chip,
476};
477
478static struct palmas_driver_data tps659038_data = {
479 .features = &tps659038_features,
480 .irq_chip = &palmas_irq_chip,
481};
482
483static struct palmas_driver_data tps65917_data = {
484 .features = &tps659038_features,
485 .irq_chip = &tps65917_irq_chip,
486};
487
488static const struct of_device_id of_palmas_match_tbl[] = {
489 {
490 .compatible = "ti,palmas",
491 .data = &palmas_data,
492 },
493 {
494 .compatible = "ti,tps659038",
495 .data = &tps659038_data,
496 },
497 {
498 .compatible = "ti,tps65917",
499 .data = &tps65917_data,
500 },
501 { },
502};
503MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
504
505static int palmas_i2c_probe(struct i2c_client *i2c,
506 const struct i2c_device_id *id)
507{
508 struct palmas *palmas;
509 struct palmas_platform_data *pdata;
510 struct palmas_driver_data *driver_data;
511 struct device_node *node = i2c->dev.of_node;
512 int ret = 0, i;
513 unsigned int reg, addr;
514 int slave;
515 const struct of_device_id *match;
516
517 pdata = dev_get_platdata(&i2c->dev);
518
519 if (node && !pdata) {
520 pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
521
522 if (!pdata)
523 return -ENOMEM;
524
525 palmas_dt_to_pdata(i2c, pdata);
526 }
527
528 if (!pdata)
529 return -EINVAL;
530
531 palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL);
532 if (palmas == NULL)
533 return -ENOMEM;
534
535 i2c_set_clientdata(i2c, palmas);
536 palmas->dev = &i2c->dev;
537 palmas->irq = i2c->irq;
538
539 match = of_match_device(of_palmas_match_tbl, &i2c->dev);
540
541 if (!match)
542 return -ENODATA;
543
544 driver_data = (struct palmas_driver_data *)match->data;
545 palmas->features = *driver_data->features;
546
547 for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
548 if (i == 0)
549 palmas->i2c_clients[i] = i2c;
550 else {
551 palmas->i2c_clients[i] =
552 i2c_new_dummy_device(i2c->adapter,
553 i2c->addr + i);
554 if (IS_ERR(palmas->i2c_clients[i])) {
555 dev_err(palmas->dev,
556 "can't attach client %d\n", i);
557 ret = PTR_ERR(palmas->i2c_clients[i]);
558 goto err_i2c;
559 }
560 palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
561 }
562 palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
563 &palmas_regmap_config[i]);
564 if (IS_ERR(palmas->regmap[i])) {
565 ret = PTR_ERR(palmas->regmap[i]);
566 dev_err(palmas->dev,
567 "Failed to allocate regmap %d, err: %d\n",
568 i, ret);
569 goto err_i2c;
570 }
571 }
572
573 if (!palmas->irq) {
574 dev_warn(palmas->dev, "IRQ missing: skipping irq request\n");
575 goto no_irq;
576 }
577
578 /* Change interrupt line output polarity */
579 if (pdata->irq_flags & IRQ_TYPE_LEVEL_HIGH)
580 reg = PALMAS_POLARITY_CTRL_INT_POLARITY;
581 else
582 reg = 0;
583 ret = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
584 PALMAS_POLARITY_CTRL, PALMAS_POLARITY_CTRL_INT_POLARITY,
585 reg);
586 if (ret < 0) {
587 dev_err(palmas->dev, "POLARITY_CTRL update failed: %d\n", ret);
588 goto err_i2c;
589 }
590
591 /* Change IRQ into clear on read mode for efficiency */
592 slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
593 addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
594 reg = PALMAS_INT_CTRL_INT_CLEAR;
595
596 regmap_write(palmas->regmap[slave], addr, reg);
597
598 ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
599 IRQF_ONESHOT | pdata->irq_flags, 0,
600 driver_data->irq_chip, &palmas->irq_data);
601 if (ret < 0)
602 goto err_i2c;
603
604no_irq:
605 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
606 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
607 PALMAS_PRIMARY_SECONDARY_PAD1);
608
609 if (pdata->mux_from_pdata) {
610 reg = pdata->pad1;
611 ret = regmap_write(palmas->regmap[slave], addr, reg);
612 if (ret)
613 goto err_irq;
614 } else {
615 ret = regmap_read(palmas->regmap[slave], addr, ®);
616 if (ret)
617 goto err_irq;
618 }
619
620 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_0))
621 palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED;
622 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK))
623 palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED;
624 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
625 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
626 palmas->led_muxed |= PALMAS_LED1_MUXED;
627 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
628 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
629 palmas->pwm_muxed |= PALMAS_PWM1_MUXED;
630 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK))
631 palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED;
632 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
633 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
634 palmas->led_muxed |= PALMAS_LED2_MUXED;
635 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
636 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
637 palmas->pwm_muxed |= PALMAS_PWM2_MUXED;
638 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_3))
639 palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED;
640
641 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
642 PALMAS_PRIMARY_SECONDARY_PAD2);
643
644 if (pdata->mux_from_pdata) {
645 reg = pdata->pad2;
646 ret = regmap_write(palmas->regmap[slave], addr, reg);
647 if (ret)
648 goto err_irq;
649 } else {
650 ret = regmap_read(palmas->regmap[slave], addr, ®);
651 if (ret)
652 goto err_irq;
653 }
654
655 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_4))
656 palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED;
657 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK))
658 palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED;
659 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_6))
660 palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED;
661 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK))
662 palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED;
663
664 dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n",
665 palmas->gpio_muxed, palmas->pwm_muxed,
666 palmas->led_muxed);
667
668 reg = pdata->power_ctrl;
669
670 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
671 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL);
672
673 ret = regmap_write(palmas->regmap[slave], addr, reg);
674 if (ret)
675 goto err_irq;
676
677 /*
678 * If we are probing with DT do this the DT way and return here
679 * otherwise continue and add devices using mfd helpers.
680 */
681 if (node) {
682 ret = devm_of_platform_populate(&i2c->dev);
683 if (ret < 0) {
684 goto err_irq;
685 } else if (pdata->pm_off && !pm_power_off) {
686 palmas_dev = palmas;
687 pm_power_off = palmas_power_off;
688 }
689 }
690
691 return ret;
692
693err_irq:
694 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
695err_i2c:
696 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
697 if (palmas->i2c_clients[i])
698 i2c_unregister_device(palmas->i2c_clients[i]);
699 }
700 return ret;
701}
702
703static int palmas_i2c_remove(struct i2c_client *i2c)
704{
705 struct palmas *palmas = i2c_get_clientdata(i2c);
706 int i;
707
708 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
709
710 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
711 if (palmas->i2c_clients[i])
712 i2c_unregister_device(palmas->i2c_clients[i]);
713 }
714
715 if (palmas == palmas_dev) {
716 pm_power_off = NULL;
717 palmas_dev = NULL;
718 }
719
720 return 0;
721}
722
723static const struct i2c_device_id palmas_i2c_id[] = {
724 { "palmas", },
725 { "twl6035", },
726 { "twl6037", },
727 { "tps65913", },
728 { /* end */ }
729};
730MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
731
732static struct i2c_driver palmas_i2c_driver = {
733 .driver = {
734 .name = "palmas",
735 .of_match_table = of_palmas_match_tbl,
736 },
737 .probe = palmas_i2c_probe,
738 .remove = palmas_i2c_remove,
739 .id_table = palmas_i2c_id,
740};
741
742static int __init palmas_i2c_init(void)
743{
744 return i2c_add_driver(&palmas_i2c_driver);
745}
746/* init early so consumer devices can complete system boot */
747subsys_initcall(palmas_i2c_init);
748
749static void __exit palmas_i2c_exit(void)
750{
751 i2c_del_driver(&palmas_i2c_driver);
752}
753module_exit(palmas_i2c_exit);
754
755MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
756MODULE_DESCRIPTION("Palmas chip family multi-function driver");
757MODULE_LICENSE("GPL");