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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.h>
22#include <linux/of_platform.h>
23
24static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
25 {
26 .reg_bits = 8,
27 .val_bits = 8,
28 .max_register = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
29 PALMAS_PRIMARY_SECONDARY_PAD3),
30 },
31 {
32 .reg_bits = 8,
33 .val_bits = 8,
34 .max_register = PALMAS_BASE_TO_REG(PALMAS_GPADC_BASE,
35 PALMAS_GPADC_SMPS_VSEL_MONITORING),
36 },
37 {
38 .reg_bits = 8,
39 .val_bits = 8,
40 .max_register = PALMAS_BASE_TO_REG(PALMAS_TRIM_GPADC_BASE,
41 PALMAS_GPADC_TRIM16),
42 },
43};
44
45static const struct regmap_irq tps65917_irqs[] = {
46 /* INT1 IRQs */
47 [TPS65917_RESERVED1] = {
48 .mask = TPS65917_RESERVED,
49 },
50 [TPS65917_PWRON_IRQ] = {
51 .mask = TPS65917_INT1_STATUS_PWRON,
52 },
53 [TPS65917_LONG_PRESS_KEY_IRQ] = {
54 .mask = TPS65917_INT1_STATUS_LONG_PRESS_KEY,
55 },
56 [TPS65917_RESERVED2] = {
57 .mask = TPS65917_RESERVED,
58 },
59 [TPS65917_PWRDOWN_IRQ] = {
60 .mask = TPS65917_INT1_STATUS_PWRDOWN,
61 },
62 [TPS65917_HOTDIE_IRQ] = {
63 .mask = TPS65917_INT1_STATUS_HOTDIE,
64 },
65 [TPS65917_VSYS_MON_IRQ] = {
66 .mask = TPS65917_INT1_STATUS_VSYS_MON,
67 },
68 [TPS65917_RESERVED3] = {
69 .mask = TPS65917_RESERVED,
70 },
71 /* INT2 IRQs*/
72 [TPS65917_RESERVED4] = {
73 .mask = TPS65917_RESERVED,
74 .reg_offset = 1,
75 },
76 [TPS65917_OTP_ERROR_IRQ] = {
77 .mask = TPS65917_INT2_STATUS_OTP_ERROR,
78 .reg_offset = 1,
79 },
80 [TPS65917_WDT_IRQ] = {
81 .mask = TPS65917_INT2_STATUS_WDT,
82 .reg_offset = 1,
83 },
84 [TPS65917_RESERVED5] = {
85 .mask = TPS65917_RESERVED,
86 .reg_offset = 1,
87 },
88 [TPS65917_RESET_IN_IRQ] = {
89 .mask = TPS65917_INT2_STATUS_RESET_IN,
90 .reg_offset = 1,
91 },
92 [TPS65917_FSD_IRQ] = {
93 .mask = TPS65917_INT2_STATUS_FSD,
94 .reg_offset = 1,
95 },
96 [TPS65917_SHORT_IRQ] = {
97 .mask = TPS65917_INT2_STATUS_SHORT,
98 .reg_offset = 1,
99 },
100 [TPS65917_RESERVED6] = {
101 .mask = TPS65917_RESERVED,
102 .reg_offset = 1,
103 },
104 /* INT3 IRQs */
105 [TPS65917_GPADC_AUTO_0_IRQ] = {
106 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_0,
107 .reg_offset = 2,
108 },
109 [TPS65917_GPADC_AUTO_1_IRQ] = {
110 .mask = TPS65917_INT3_STATUS_GPADC_AUTO_1,
111 .reg_offset = 2,
112 },
113 [TPS65917_GPADC_EOC_SW_IRQ] = {
114 .mask = TPS65917_INT3_STATUS_GPADC_EOC_SW,
115 .reg_offset = 2,
116 },
117 [TPS65917_RESREVED6] = {
118 .mask = TPS65917_RESERVED6,
119 .reg_offset = 2,
120 },
121 [TPS65917_RESERVED7] = {
122 .mask = TPS65917_RESERVED,
123 .reg_offset = 2,
124 },
125 [TPS65917_RESERVED8] = {
126 .mask = TPS65917_RESERVED,
127 .reg_offset = 2,
128 },
129 [TPS65917_RESERVED9] = {
130 .mask = TPS65917_RESERVED,
131 .reg_offset = 2,
132 },
133 [TPS65917_VBUS_IRQ] = {
134 .mask = TPS65917_INT3_STATUS_VBUS,
135 .reg_offset = 2,
136 },
137 /* INT4 IRQs */
138 [TPS65917_GPIO_0_IRQ] = {
139 .mask = TPS65917_INT4_STATUS_GPIO_0,
140 .reg_offset = 3,
141 },
142 [TPS65917_GPIO_1_IRQ] = {
143 .mask = TPS65917_INT4_STATUS_GPIO_1,
144 .reg_offset = 3,
145 },
146 [TPS65917_GPIO_2_IRQ] = {
147 .mask = TPS65917_INT4_STATUS_GPIO_2,
148 .reg_offset = 3,
149 },
150 [TPS65917_GPIO_3_IRQ] = {
151 .mask = TPS65917_INT4_STATUS_GPIO_3,
152 .reg_offset = 3,
153 },
154 [TPS65917_GPIO_4_IRQ] = {
155 .mask = TPS65917_INT4_STATUS_GPIO_4,
156 .reg_offset = 3,
157 },
158 [TPS65917_GPIO_5_IRQ] = {
159 .mask = TPS65917_INT4_STATUS_GPIO_5,
160 .reg_offset = 3,
161 },
162 [TPS65917_GPIO_6_IRQ] = {
163 .mask = TPS65917_INT4_STATUS_GPIO_6,
164 .reg_offset = 3,
165 },
166 [TPS65917_RESERVED10] = {
167 .mask = TPS65917_RESERVED10,
168 .reg_offset = 3,
169 },
170};
171
172static const struct regmap_irq palmas_irqs[] = {
173 /* INT1 IRQs */
174 [PALMAS_CHARG_DET_N_VBUS_OVV_IRQ] = {
175 .mask = PALMAS_INT1_STATUS_CHARG_DET_N_VBUS_OVV,
176 },
177 [PALMAS_PWRON_IRQ] = {
178 .mask = PALMAS_INT1_STATUS_PWRON,
179 },
180 [PALMAS_LONG_PRESS_KEY_IRQ] = {
181 .mask = PALMAS_INT1_STATUS_LONG_PRESS_KEY,
182 },
183 [PALMAS_RPWRON_IRQ] = {
184 .mask = PALMAS_INT1_STATUS_RPWRON,
185 },
186 [PALMAS_PWRDOWN_IRQ] = {
187 .mask = PALMAS_INT1_STATUS_PWRDOWN,
188 },
189 [PALMAS_HOTDIE_IRQ] = {
190 .mask = PALMAS_INT1_STATUS_HOTDIE,
191 },
192 [PALMAS_VSYS_MON_IRQ] = {
193 .mask = PALMAS_INT1_STATUS_VSYS_MON,
194 },
195 [PALMAS_VBAT_MON_IRQ] = {
196 .mask = PALMAS_INT1_STATUS_VBAT_MON,
197 },
198 /* INT2 IRQs*/
199 [PALMAS_RTC_ALARM_IRQ] = {
200 .mask = PALMAS_INT2_STATUS_RTC_ALARM,
201 .reg_offset = 1,
202 },
203 [PALMAS_RTC_TIMER_IRQ] = {
204 .mask = PALMAS_INT2_STATUS_RTC_TIMER,
205 .reg_offset = 1,
206 },
207 [PALMAS_WDT_IRQ] = {
208 .mask = PALMAS_INT2_STATUS_WDT,
209 .reg_offset = 1,
210 },
211 [PALMAS_BATREMOVAL_IRQ] = {
212 .mask = PALMAS_INT2_STATUS_BATREMOVAL,
213 .reg_offset = 1,
214 },
215 [PALMAS_RESET_IN_IRQ] = {
216 .mask = PALMAS_INT2_STATUS_RESET_IN,
217 .reg_offset = 1,
218 },
219 [PALMAS_FBI_BB_IRQ] = {
220 .mask = PALMAS_INT2_STATUS_FBI_BB,
221 .reg_offset = 1,
222 },
223 [PALMAS_SHORT_IRQ] = {
224 .mask = PALMAS_INT2_STATUS_SHORT,
225 .reg_offset = 1,
226 },
227 [PALMAS_VAC_ACOK_IRQ] = {
228 .mask = PALMAS_INT2_STATUS_VAC_ACOK,
229 .reg_offset = 1,
230 },
231 /* INT3 IRQs */
232 [PALMAS_GPADC_AUTO_0_IRQ] = {
233 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_0,
234 .reg_offset = 2,
235 },
236 [PALMAS_GPADC_AUTO_1_IRQ] = {
237 .mask = PALMAS_INT3_STATUS_GPADC_AUTO_1,
238 .reg_offset = 2,
239 },
240 [PALMAS_GPADC_EOC_SW_IRQ] = {
241 .mask = PALMAS_INT3_STATUS_GPADC_EOC_SW,
242 .reg_offset = 2,
243 },
244 [PALMAS_GPADC_EOC_RT_IRQ] = {
245 .mask = PALMAS_INT3_STATUS_GPADC_EOC_RT,
246 .reg_offset = 2,
247 },
248 [PALMAS_ID_OTG_IRQ] = {
249 .mask = PALMAS_INT3_STATUS_ID_OTG,
250 .reg_offset = 2,
251 },
252 [PALMAS_ID_IRQ] = {
253 .mask = PALMAS_INT3_STATUS_ID,
254 .reg_offset = 2,
255 },
256 [PALMAS_VBUS_OTG_IRQ] = {
257 .mask = PALMAS_INT3_STATUS_VBUS_OTG,
258 .reg_offset = 2,
259 },
260 [PALMAS_VBUS_IRQ] = {
261 .mask = PALMAS_INT3_STATUS_VBUS,
262 .reg_offset = 2,
263 },
264 /* INT4 IRQs */
265 [PALMAS_GPIO_0_IRQ] = {
266 .mask = PALMAS_INT4_STATUS_GPIO_0,
267 .reg_offset = 3,
268 },
269 [PALMAS_GPIO_1_IRQ] = {
270 .mask = PALMAS_INT4_STATUS_GPIO_1,
271 .reg_offset = 3,
272 },
273 [PALMAS_GPIO_2_IRQ] = {
274 .mask = PALMAS_INT4_STATUS_GPIO_2,
275 .reg_offset = 3,
276 },
277 [PALMAS_GPIO_3_IRQ] = {
278 .mask = PALMAS_INT4_STATUS_GPIO_3,
279 .reg_offset = 3,
280 },
281 [PALMAS_GPIO_4_IRQ] = {
282 .mask = PALMAS_INT4_STATUS_GPIO_4,
283 .reg_offset = 3,
284 },
285 [PALMAS_GPIO_5_IRQ] = {
286 .mask = PALMAS_INT4_STATUS_GPIO_5,
287 .reg_offset = 3,
288 },
289 [PALMAS_GPIO_6_IRQ] = {
290 .mask = PALMAS_INT4_STATUS_GPIO_6,
291 .reg_offset = 3,
292 },
293 [PALMAS_GPIO_7_IRQ] = {
294 .mask = PALMAS_INT4_STATUS_GPIO_7,
295 .reg_offset = 3,
296 },
297};
298
299static const struct regmap_irq_chip palmas_irq_chip = {
300 .name = "palmas",
301 .irqs = palmas_irqs,
302 .num_irqs = ARRAY_SIZE(palmas_irqs),
303
304 .num_regs = 4,
305 .irq_reg_stride = 5,
306 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
307 PALMAS_INT1_STATUS),
308 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
309 PALMAS_INT1_MASK),
310};
311
312static const struct regmap_irq_chip tps65917_irq_chip = {
313 .name = "tps65917",
314 .irqs = tps65917_irqs,
315 .num_irqs = ARRAY_SIZE(tps65917_irqs),
316
317 .num_regs = 4,
318 .irq_reg_stride = 5,
319 .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
320 PALMAS_INT1_STATUS),
321 .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
322 PALMAS_INT1_MASK),
323};
324
325int palmas_ext_control_req_config(struct palmas *palmas,
326 enum palmas_external_requestor_id id, int ext_ctrl, bool enable)
327{
328 struct palmas_pmic_driver_data *pmic_ddata = palmas->pmic_ddata;
329 int preq_mask_bit = 0;
330 int reg_add = 0;
331 int bit_pos, ret;
332
333 if (!(ext_ctrl & PALMAS_EXT_REQ))
334 return 0;
335
336 if (id >= PALMAS_EXTERNAL_REQSTR_ID_MAX)
337 return 0;
338
339 if (ext_ctrl & PALMAS_EXT_CONTROL_NSLEEP) {
340 reg_add = PALMAS_NSLEEP_RES_ASSIGN;
341 preq_mask_bit = 0;
342 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE1) {
343 reg_add = PALMAS_ENABLE1_RES_ASSIGN;
344 preq_mask_bit = 1;
345 } else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE2) {
346 reg_add = PALMAS_ENABLE2_RES_ASSIGN;
347 preq_mask_bit = 2;
348 }
349
350 bit_pos = pmic_ddata->sleep_req_info[id].bit_pos;
351 reg_add += pmic_ddata->sleep_req_info[id].reg_offset;
352 if (enable)
353 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
354 reg_add, BIT(bit_pos), BIT(bit_pos));
355 else
356 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
357 reg_add, BIT(bit_pos), 0);
358 if (ret < 0) {
359 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
360 reg_add, ret);
361 return ret;
362 }
363
364 /* Unmask the PREQ */
365 ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
366 PALMAS_POWER_CTRL, BIT(preq_mask_bit), 0);
367 if (ret < 0) {
368 dev_err(palmas->dev, "POWER_CTRL register update failed %d\n",
369 ret);
370 return ret;
371 }
372 return ret;
373}
374EXPORT_SYMBOL_GPL(palmas_ext_control_req_config);
375
376static int palmas_set_pdata_irq_flag(struct i2c_client *i2c,
377 struct palmas_platform_data *pdata)
378{
379 struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
380 if (!irq_data) {
381 dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
382 return -EINVAL;
383 }
384
385 pdata->irq_flags = irqd_get_trigger_type(irq_data);
386 dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags);
387 return 0;
388}
389
390static void palmas_dt_to_pdata(struct i2c_client *i2c,
391 struct palmas_platform_data *pdata)
392{
393 struct device_node *node = i2c->dev.of_node;
394 int ret;
395 u32 prop;
396
397 ret = of_property_read_u32(node, "ti,mux-pad1", &prop);
398 if (!ret) {
399 pdata->mux_from_pdata = 1;
400 pdata->pad1 = prop;
401 }
402
403 ret = of_property_read_u32(node, "ti,mux-pad2", &prop);
404 if (!ret) {
405 pdata->mux_from_pdata = 1;
406 pdata->pad2 = prop;
407 }
408
409 /* The default for this register is all masked */
410 ret = of_property_read_u32(node, "ti,power-ctrl", &prop);
411 if (!ret)
412 pdata->power_ctrl = prop;
413 else
414 pdata->power_ctrl = PALMAS_POWER_CTRL_NSLEEP_MASK |
415 PALMAS_POWER_CTRL_ENABLE1_MASK |
416 PALMAS_POWER_CTRL_ENABLE2_MASK;
417 if (i2c->irq)
418 palmas_set_pdata_irq_flag(i2c, pdata);
419
420 pdata->pm_off = of_property_read_bool(node,
421 "ti,system-power-controller");
422}
423
424static struct palmas *palmas_dev;
425static void palmas_power_off(void)
426{
427 unsigned int addr;
428 int ret, slave;
429 u8 powerhold_mask;
430 struct device_node *np = palmas_dev->dev->of_node;
431
432 if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
433 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
434 PALMAS_PRIMARY_SECONDARY_PAD2);
435 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
436
437 if (of_device_is_compatible(np, "ti,tps65917"))
438 powerhold_mask =
439 TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK;
440 else
441 powerhold_mask =
442 PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK;
443
444 ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
445 powerhold_mask, 0);
446 if (ret)
447 dev_err(palmas_dev->dev,
448 "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
449 ret);
450 }
451
452 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
453 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
454
455 ret = regmap_update_bits(
456 palmas_dev->regmap[slave],
457 addr,
458 PALMAS_DEV_CTRL_DEV_ON,
459 0);
460
461 if (ret)
462 pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
463 __func__, ret);
464}
465
466struct palmas_driver_data {
467 unsigned int features;
468 const struct regmap_irq_chip *irq_chip;
469};
470
471static const struct palmas_driver_data palmas_data = {
472 .features = PALMAS_PMIC_FEATURE_SMPS10_BOOST,
473 .irq_chip = &palmas_irq_chip,
474};
475
476static const struct palmas_driver_data tps659038_data = {
477 .irq_chip = &palmas_irq_chip,
478};
479
480static const struct palmas_driver_data tps65917_data = {
481 .irq_chip = &tps65917_irq_chip,
482};
483
484static int palmas_i2c_probe(struct i2c_client *i2c)
485{
486 struct palmas *palmas;
487 struct palmas_platform_data *pdata;
488 const struct palmas_driver_data *driver_data;
489 struct device_node *node = i2c->dev.of_node;
490 int ret = 0, i;
491 unsigned int reg, addr;
492 int slave;
493
494 pdata = dev_get_platdata(&i2c->dev);
495
496 if (node && !pdata) {
497 pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
498
499 if (!pdata)
500 return -ENOMEM;
501
502 palmas_dt_to_pdata(i2c, pdata);
503 }
504
505 if (!pdata)
506 return -EINVAL;
507
508 palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL);
509 if (palmas == NULL)
510 return -ENOMEM;
511
512 i2c_set_clientdata(i2c, palmas);
513 palmas->dev = &i2c->dev;
514 palmas->irq = i2c->irq;
515
516 driver_data = i2c_get_match_data(i2c);
517 palmas->features = driver_data->features;
518
519 for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
520 if (i == 0)
521 palmas->i2c_clients[i] = i2c;
522 else {
523 palmas->i2c_clients[i] =
524 i2c_new_dummy_device(i2c->adapter,
525 i2c->addr + i);
526 if (IS_ERR(palmas->i2c_clients[i])) {
527 dev_err(palmas->dev,
528 "can't attach client %d\n", i);
529 ret = PTR_ERR(palmas->i2c_clients[i]);
530 goto err_i2c;
531 }
532 palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
533 }
534 palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
535 &palmas_regmap_config[i]);
536 if (IS_ERR(palmas->regmap[i])) {
537 ret = PTR_ERR(palmas->regmap[i]);
538 dev_err(palmas->dev,
539 "Failed to allocate regmap %d, err: %d\n",
540 i, ret);
541 goto err_i2c;
542 }
543 }
544
545 if (!palmas->irq) {
546 dev_warn(palmas->dev, "IRQ missing: skipping irq request\n");
547 goto no_irq;
548 }
549
550 /* Change interrupt line output polarity */
551 if (pdata->irq_flags & IRQ_TYPE_LEVEL_HIGH)
552 reg = PALMAS_POLARITY_CTRL_INT_POLARITY;
553 else
554 reg = 0;
555 ret = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
556 PALMAS_POLARITY_CTRL, PALMAS_POLARITY_CTRL_INT_POLARITY,
557 reg);
558 if (ret < 0) {
559 dev_err(palmas->dev, "POLARITY_CTRL update failed: %d\n", ret);
560 goto err_i2c;
561 }
562
563 /* Change IRQ into clear on read mode for efficiency */
564 slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
565 addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
566 reg = PALMAS_INT_CTRL_INT_CLEAR;
567
568 regmap_write(palmas->regmap[slave], addr, reg);
569
570 ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
571 IRQF_ONESHOT | pdata->irq_flags, 0,
572 driver_data->irq_chip, &palmas->irq_data);
573 if (ret < 0)
574 goto err_i2c;
575
576no_irq:
577 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
578 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
579 PALMAS_PRIMARY_SECONDARY_PAD1);
580
581 if (pdata->mux_from_pdata) {
582 reg = pdata->pad1;
583 ret = regmap_write(palmas->regmap[slave], addr, reg);
584 if (ret)
585 goto err_irq;
586 } else {
587 ret = regmap_read(palmas->regmap[slave], addr, ®);
588 if (ret)
589 goto err_irq;
590 }
591
592 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_0))
593 palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED;
594 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK))
595 palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED;
596 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
597 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
598 palmas->led_muxed |= PALMAS_LED1_MUXED;
599 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
600 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
601 palmas->pwm_muxed |= PALMAS_PWM1_MUXED;
602 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK))
603 palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED;
604 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
605 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
606 palmas->led_muxed |= PALMAS_LED2_MUXED;
607 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
608 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
609 palmas->pwm_muxed |= PALMAS_PWM2_MUXED;
610 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_3))
611 palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED;
612
613 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
614 PALMAS_PRIMARY_SECONDARY_PAD2);
615
616 if (pdata->mux_from_pdata) {
617 reg = pdata->pad2;
618 ret = regmap_write(palmas->regmap[slave], addr, reg);
619 if (ret)
620 goto err_irq;
621 } else {
622 ret = regmap_read(palmas->regmap[slave], addr, ®);
623 if (ret)
624 goto err_irq;
625 }
626
627 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_4))
628 palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED;
629 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK))
630 palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED;
631 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_6))
632 palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED;
633 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK))
634 palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED;
635
636 dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n",
637 palmas->gpio_muxed, palmas->pwm_muxed,
638 palmas->led_muxed);
639
640 reg = pdata->power_ctrl;
641
642 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
643 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL);
644
645 ret = regmap_write(palmas->regmap[slave], addr, reg);
646 if (ret)
647 goto err_irq;
648
649 /*
650 * If we are probing with DT do this the DT way and return here
651 * otherwise continue and add devices using mfd helpers.
652 */
653 if (node) {
654 ret = devm_of_platform_populate(&i2c->dev);
655 if (ret < 0) {
656 goto err_irq;
657 } else if (pdata->pm_off && !pm_power_off) {
658 palmas_dev = palmas;
659 pm_power_off = palmas_power_off;
660 }
661 }
662
663 return ret;
664
665err_irq:
666 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
667err_i2c:
668 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
669 if (palmas->i2c_clients[i])
670 i2c_unregister_device(palmas->i2c_clients[i]);
671 }
672 return ret;
673}
674
675static void palmas_i2c_remove(struct i2c_client *i2c)
676{
677 struct palmas *palmas = i2c_get_clientdata(i2c);
678 int i;
679
680 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
681
682 for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
683 if (palmas->i2c_clients[i])
684 i2c_unregister_device(palmas->i2c_clients[i]);
685 }
686
687 if (palmas == palmas_dev) {
688 pm_power_off = NULL;
689 palmas_dev = NULL;
690 }
691}
692
693static const struct of_device_id of_palmas_match_tbl[] = {
694 { .compatible = "ti,palmas", .data = &palmas_data },
695 { .compatible = "ti,tps659038", .data = &tps659038_data },
696 { .compatible = "ti,tps65917", .data = &tps65917_data },
697 { }
698};
699MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
700
701static const struct i2c_device_id palmas_i2c_id[] = {
702 { "palmas", (kernel_ulong_t)&palmas_data },
703 { "twl6035", (kernel_ulong_t)&palmas_data },
704 { "twl6037", (kernel_ulong_t)&palmas_data },
705 { "tps65913", (kernel_ulong_t)&palmas_data },
706 { /* end */ }
707};
708MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
709
710static struct i2c_driver palmas_i2c_driver = {
711 .driver = {
712 .name = "palmas",
713 .of_match_table = of_palmas_match_tbl,
714 },
715 .probe = palmas_i2c_probe,
716 .remove = palmas_i2c_remove,
717 .id_table = palmas_i2c_id,
718};
719
720static int __init palmas_i2c_init(void)
721{
722 return i2c_add_driver(&palmas_i2c_driver);
723}
724/* init early so consumer devices can complete system boot */
725subsys_initcall(palmas_i2c_init);
726
727static void __exit palmas_i2c_exit(void)
728{
729 i2c_del_driver(&palmas_i2c_driver);
730}
731module_exit(palmas_i2c_exit);
732
733MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
734MODULE_DESCRIPTION("Palmas chip family multi-function driver");
735MODULE_LICENSE("GPL");
1/*
2 * TI Palmas MFD Driver
3 *
4 * Copyright 2011-2012 Texas Instruments Inc.
5 *
6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/init.h>
18#include <linux/slab.h>
19#include <linux/i2c.h>
20#include <linux/interrupt.h>
21#include <linux/irq.h>
22#include <linux/regmap.h>
23#include <linux/err.h>
24#include <linux/mfd/core.h>
25#include <linux/mfd/palmas.h>
26
27static const struct resource gpadc_resource[] = {
28 {
29 .name = "EOC_SW",
30 .start = PALMAS_GPADC_EOC_SW_IRQ,
31 .end = PALMAS_GPADC_EOC_SW_IRQ,
32 .flags = IORESOURCE_IRQ,
33 }
34};
35
36static const struct resource usb_resource[] = {
37 {
38 .name = "ID",
39 .start = PALMAS_ID_OTG_IRQ,
40 .end = PALMAS_ID_OTG_IRQ,
41 .flags = IORESOURCE_IRQ,
42 },
43 {
44 .name = "ID_WAKEUP",
45 .start = PALMAS_ID_IRQ,
46 .end = PALMAS_ID_IRQ,
47 .flags = IORESOURCE_IRQ,
48 },
49 {
50 .name = "VBUS",
51 .start = PALMAS_VBUS_OTG_IRQ,
52 .end = PALMAS_VBUS_OTG_IRQ,
53 .flags = IORESOURCE_IRQ,
54 },
55 {
56 .name = "VBUS_WAKEUP",
57 .start = PALMAS_VBUS_IRQ,
58 .end = PALMAS_VBUS_IRQ,
59 .flags = IORESOURCE_IRQ,
60 },
61};
62
63static const struct resource rtc_resource[] = {
64 {
65 .name = "RTC_ALARM",
66 .start = PALMAS_RTC_ALARM_IRQ,
67 .end = PALMAS_RTC_ALARM_IRQ,
68 .flags = IORESOURCE_IRQ,
69 },
70};
71
72static const struct resource pwron_resource[] = {
73 {
74 .name = "PWRON_BUTTON",
75 .start = PALMAS_PWRON_IRQ,
76 .end = PALMAS_PWRON_IRQ,
77 .flags = IORESOURCE_IRQ,
78 },
79};
80
81enum palmas_ids {
82 PALMAS_PMIC_ID,
83 PALMAS_GPIO_ID,
84 PALMAS_LEDS_ID,
85 PALMAS_WDT_ID,
86 PALMAS_RTC_ID,
87 PALMAS_PWRBUTTON_ID,
88 PALMAS_GPADC_ID,
89 PALMAS_RESOURCE_ID,
90 PALMAS_CLK_ID,
91 PALMAS_PWM_ID,
92 PALMAS_USB_ID,
93};
94
95static const struct mfd_cell palmas_children[] = {
96 {
97 .name = "palmas-pmic",
98 .id = PALMAS_PMIC_ID,
99 },
100 {
101 .name = "palmas-gpio",
102 .id = PALMAS_GPIO_ID,
103 },
104 {
105 .name = "palmas-leds",
106 .id = PALMAS_LEDS_ID,
107 },
108 {
109 .name = "palmas-wdt",
110 .id = PALMAS_WDT_ID,
111 },
112 {
113 .name = "palmas-rtc",
114 .num_resources = ARRAY_SIZE(rtc_resource),
115 .resources = rtc_resource,
116 .id = PALMAS_RTC_ID,
117 },
118 {
119 .name = "palmas-pwrbutton",
120 .num_resources = ARRAY_SIZE(pwron_resource),
121 .resources = pwron_resource,
122 .id = PALMAS_PWRBUTTON_ID,
123 },
124 {
125 .name = "palmas-gpadc",
126 .num_resources = ARRAY_SIZE(gpadc_resource),
127 .resources = gpadc_resource,
128 .id = PALMAS_GPADC_ID,
129 },
130 {
131 .name = "palmas-resource",
132 .id = PALMAS_RESOURCE_ID,
133 },
134 {
135 .name = "palmas-clk",
136 .id = PALMAS_CLK_ID,
137 },
138 {
139 .name = "palmas-pwm",
140 .id = PALMAS_PWM_ID,
141 },
142 {
143 .name = "palmas-usb",
144 .num_resources = ARRAY_SIZE(usb_resource),
145 .resources = usb_resource,
146 .id = PALMAS_USB_ID,
147 }
148};
149
150static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
151 {
152 .reg_bits = 8,
153 .val_bits = 8,
154 .max_register = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
155 PALMAS_PRIMARY_SECONDARY_PAD3),
156 },
157 {
158 .reg_bits = 8,
159 .val_bits = 8,
160 .max_register = PALMAS_BASE_TO_REG(PALMAS_GPADC_BASE,
161 PALMAS_GPADC_SMPS_VSEL_MONITORING),
162 },
163 {
164 .reg_bits = 8,
165 .val_bits = 8,
166 .max_register = PALMAS_BASE_TO_REG(PALMAS_TRIM_GPADC_BASE,
167 PALMAS_GPADC_TRIM16),
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 int __devinit palmas_i2c_probe(struct i2c_client *i2c,
312 const struct i2c_device_id *id)
313{
314 struct palmas *palmas;
315 struct palmas_platform_data *pdata;
316 int ret = 0, i;
317 unsigned int reg, addr;
318 int slave;
319 struct mfd_cell *children;
320
321 pdata = dev_get_platdata(&i2c->dev);
322 if (!pdata)
323 return -EINVAL;
324
325 palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL);
326 if (palmas == NULL)
327 return -ENOMEM;
328
329 i2c_set_clientdata(i2c, palmas);
330 palmas->dev = &i2c->dev;
331 palmas->id = id->driver_data;
332 palmas->irq = i2c->irq;
333
334 for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
335 if (i == 0)
336 palmas->i2c_clients[i] = i2c;
337 else {
338 palmas->i2c_clients[i] =
339 i2c_new_dummy(i2c->adapter,
340 i2c->addr + i);
341 if (!palmas->i2c_clients[i]) {
342 dev_err(palmas->dev,
343 "can't attach client %d\n", i);
344 ret = -ENOMEM;
345 goto err;
346 }
347 }
348 palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
349 &palmas_regmap_config[i]);
350 if (IS_ERR(palmas->regmap[i])) {
351 ret = PTR_ERR(palmas->regmap[i]);
352 dev_err(palmas->dev,
353 "Failed to allocate regmap %d, err: %d\n",
354 i, ret);
355 goto err;
356 }
357 }
358
359 /* Change IRQ into clear on read mode for efficiency */
360 slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
361 addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
362 reg = PALMAS_INT_CTRL_INT_CLEAR;
363
364 regmap_write(palmas->regmap[slave], addr, reg);
365
366 ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
367 IRQF_ONESHOT | IRQF_TRIGGER_LOW, -1, &palmas_irq_chip,
368 &palmas->irq_data);
369 if (ret < 0)
370 goto err;
371
372 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
373 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
374 PALMAS_PRIMARY_SECONDARY_PAD1);
375
376 if (pdata->mux_from_pdata) {
377 reg = pdata->pad1;
378 ret = regmap_write(palmas->regmap[slave], addr, reg);
379 if (ret)
380 goto err;
381 } else {
382 ret = regmap_read(palmas->regmap[slave], addr, ®);
383 if (ret)
384 goto err;
385 }
386
387 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_0))
388 palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED;
389 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK))
390 palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED;
391 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
392 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
393 palmas->led_muxed |= PALMAS_LED1_MUXED;
394 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
395 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
396 palmas->pwm_muxed |= PALMAS_PWM1_MUXED;
397 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK))
398 palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED;
399 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
400 (2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
401 palmas->led_muxed |= PALMAS_LED2_MUXED;
402 else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
403 (3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
404 palmas->pwm_muxed |= PALMAS_PWM2_MUXED;
405 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_3))
406 palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED;
407
408 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
409 PALMAS_PRIMARY_SECONDARY_PAD2);
410
411 if (pdata->mux_from_pdata) {
412 reg = pdata->pad2;
413 ret = regmap_write(palmas->regmap[slave], addr, reg);
414 if (ret)
415 goto err;
416 } else {
417 ret = regmap_read(palmas->regmap[slave], addr, ®);
418 if (ret)
419 goto err;
420 }
421
422 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_4))
423 palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED;
424 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK))
425 palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED;
426 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_6))
427 palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED;
428 if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK))
429 palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED;
430
431 dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n",
432 palmas->gpio_muxed, palmas->pwm_muxed,
433 palmas->led_muxed);
434
435 reg = pdata->power_ctrl;
436
437 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
438 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL);
439
440 ret = regmap_write(palmas->regmap[slave], addr, reg);
441 if (ret)
442 goto err;
443
444 children = kmemdup(palmas_children, sizeof(palmas_children),
445 GFP_KERNEL);
446 if (!children) {
447 ret = -ENOMEM;
448 goto err;
449 }
450
451 children[PALMAS_PMIC_ID].platform_data = pdata->pmic_pdata;
452 children[PALMAS_PMIC_ID].pdata_size = sizeof(*pdata->pmic_pdata);
453
454 ret = mfd_add_devices(palmas->dev, -1,
455 children, ARRAY_SIZE(palmas_children),
456 NULL, regmap_irq_chip_get_base(palmas->irq_data));
457 kfree(children);
458
459 if (ret < 0)
460 goto err;
461
462 return ret;
463
464err:
465 mfd_remove_devices(palmas->dev);
466 kfree(palmas);
467 return ret;
468}
469
470static int palmas_i2c_remove(struct i2c_client *i2c)
471{
472 struct palmas *palmas = i2c_get_clientdata(i2c);
473
474 mfd_remove_devices(palmas->dev);
475 regmap_del_irq_chip(palmas->irq, palmas->irq_data);
476
477 return 0;
478}
479
480static const struct i2c_device_id palmas_i2c_id[] = {
481 { "palmas", },
482 { "twl6035", },
483 { "twl6037", },
484 { "tps65913", },
485 { /* end */ }
486};
487MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
488
489static struct of_device_id __devinitdata of_palmas_match_tbl[] = {
490 { .compatible = "ti,palmas", },
491 { /* end */ }
492};
493
494static struct i2c_driver palmas_i2c_driver = {
495 .driver = {
496 .name = "palmas",
497 .of_match_table = of_palmas_match_tbl,
498 .owner = THIS_MODULE,
499 },
500 .probe = palmas_i2c_probe,
501 .remove = palmas_i2c_remove,
502 .id_table = palmas_i2c_id,
503};
504
505static int __init palmas_i2c_init(void)
506{
507 return i2c_add_driver(&palmas_i2c_driver);
508}
509/* init early so consumer devices can complete system boot */
510subsys_initcall(palmas_i2c_init);
511
512static void __exit palmas_i2c_exit(void)
513{
514 i2c_del_driver(&palmas_i2c_driver);
515}
516module_exit(palmas_i2c_exit);
517
518MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
519MODULE_DESCRIPTION("Palmas chip family multi-function driver");
520MODULE_LICENSE("GPL");