Merge branch 'printk-rework' into for-linus
[linux-2.6-microblaze.git] / drivers / mfd / palmas.c
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
23 static 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
44 static 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
171 static 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
298 static 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
311 static 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
324 int 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 }
373 EXPORT_SYMBOL_GPL(palmas_ext_control_req_config);
374
375 static 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
389 static 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
423 static struct palmas *palmas_dev;
424 static 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
465 static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
466 static unsigned int tps659038_features;
467
468 struct palmas_driver_data {
469         unsigned int *features;
470         struct regmap_irq_chip *irq_chip;
471 };
472
473 static struct palmas_driver_data palmas_data = {
474         .features = &palmas_features,
475         .irq_chip = &palmas_irq_chip,
476 };
477
478 static struct palmas_driver_data tps659038_data = {
479         .features = &tps659038_features,
480         .irq_chip = &palmas_irq_chip,
481 };
482
483 static struct palmas_driver_data tps65917_data = {
484         .features = &tps659038_features,
485         .irq_chip = &tps65917_irq_chip,
486 };
487
488 static 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 };
503 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
504
505 static 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
604 no_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, &reg);
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, &reg);
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
693 err_irq:
694         regmap_del_irq_chip(palmas->irq, palmas->irq_data);
695 err_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
703 static 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
723 static const struct i2c_device_id palmas_i2c_id[] = {
724         { "palmas", },
725         { "twl6035", },
726         { "twl6037", },
727         { "tps65913", },
728         { /* end */ }
729 };
730 MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
731
732 static 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
742 static 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 */
747 subsys_initcall(palmas_i2c_init);
748
749 static void __exit palmas_i2c_exit(void)
750 {
751         i2c_del_driver(&palmas_i2c_driver);
752 }
753 module_exit(palmas_i2c_exit);
754
755 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
756 MODULE_DESCRIPTION("Palmas chip family multi-function driver");
757 MODULE_LICENSE("GPL");