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thp: avoid dumping huge zero page
[linux-2.6/libata-dev.git] / drivers / mfd / twl-core.c
blob4f3baadd0038e04f44d0a88856218edee23e5646
1 /*
2 * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM
3 * and audio CODEC devices
4 *
5 * Copyright (C) 2005-2006 Texas Instruments, Inc.
6 *
7 * Modifications to defer interrupt handling to a kernel thread:
8 * Copyright (C) 2006 MontaVista Software, Inc.
9 *
10 * Based on tlv320aic23.c:
11 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
12 *
13 * Code cleanup and modifications to IRQ handler.
14 * by syed khasim <x0khasim@ti.com>
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 */
30
31 #include <linux/init.h>
32 #include <linux/mutex.h>
33 #include <linux/module.h>
34 #include <linux/platform_device.h>
35 #include <linux/regmap.h>
36 #include <linux/clk.h>
37 #include <linux/err.h>
38 #include <linux/device.h>
39 #include <linux/of.h>
40 #include <linux/of_irq.h>
41 #include <linux/of_platform.h>
42 #include <linux/irq.h>
43 #include <linux/irqdomain.h>
44
45 #include <linux/regulator/machine.h>
46
47 #include <linux/i2c.h>
48 #include <linux/i2c/twl.h>
49
50 #include "twl-core.h"
51
52 /*
53 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
54 * Management and System Companion Device" chips originally designed for
55 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
56 * often at around 3 Mbit/sec, including for interrupt handling.
57 *
58 * This driver core provides genirq support for the interrupts emitted,
59 * by the various modules, and exports register access primitives.
60 *
61 * FIXME this driver currently requires use of the first interrupt line
62 * (and associated registers).
63 */
64
65 #define DRIVER_NAME "twl"
66
67 /* Triton Core internal information (BEGIN) */
68
69 #define TWL_NUM_SLAVES 4
70
71 #define SUB_CHIP_ID0 0
72 #define SUB_CHIP_ID1 1
73 #define SUB_CHIP_ID2 2
74 #define SUB_CHIP_ID3 3
75 #define SUB_CHIP_ID_INVAL 0xff
76
77 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
78
79 /* Base Address defns for twl4030_map[] */
80
81 /* subchip/slave 0 - USB ID */
82 #define TWL4030_BASEADD_USB 0x0000
83
84 /* subchip/slave 1 - AUD ID */
85 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
86 #define TWL4030_BASEADD_GPIO 0x0098
87 #define TWL4030_BASEADD_INTBR 0x0085
88 #define TWL4030_BASEADD_PIH 0x0080
89 #define TWL4030_BASEADD_TEST 0x004C
90
91 /* subchip/slave 2 - AUX ID */
92 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
93 #define TWL4030_BASEADD_LED 0x00EE
94 #define TWL4030_BASEADD_MADC 0x0000
95 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
96 #define TWL4030_BASEADD_PRECHARGE 0x00AA
97 #define TWL4030_BASEADD_PWM0 0x00F8
98 #define TWL4030_BASEADD_PWM1 0x00FB
99 #define TWL4030_BASEADD_PWMA 0x00EF
100 #define TWL4030_BASEADD_PWMB 0x00F1
101 #define TWL4030_BASEADD_KEYPAD 0x00D2
102
103 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
104 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
105 one */
106
107 /* subchip/slave 3 - POWER ID */
108 #define TWL4030_BASEADD_BACKUP 0x0014
109 #define TWL4030_BASEADD_INT 0x002E
110 #define TWL4030_BASEADD_PM_MASTER 0x0036
111 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
112 #define TWL4030_BASEADD_RTC 0x001C
113 #define TWL4030_BASEADD_SECURED_REG 0x0000
114
115 /* Triton Core internal information (END) */
116
117
118 /* subchip/slave 0 0x48 - POWER */
119 #define TWL6030_BASEADD_RTC 0x0000
120 #define TWL6030_BASEADD_MEM 0x0017
121 #define TWL6030_BASEADD_PM_MASTER 0x001F
122 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
123 #define TWL6030_BASEADD_PM_MISC 0x00E2
124 #define TWL6030_BASEADD_PM_PUPD 0x00F0
125
126 /* subchip/slave 1 0x49 - FEATURE */
127 #define TWL6030_BASEADD_USB 0x0000
128 #define TWL6030_BASEADD_GPADC_CTRL 0x002E
129 #define TWL6030_BASEADD_AUX 0x0090
130 #define TWL6030_BASEADD_PWM 0x00BA
131 #define TWL6030_BASEADD_GASGAUGE 0x00C0
132 #define TWL6030_BASEADD_PIH 0x00D0
133 #define TWL6030_BASEADD_CHARGER 0x00E0
134 #define TWL6025_BASEADD_CHARGER 0x00DA
135
136 /* subchip/slave 2 0x4A - DFT */
137 #define TWL6030_BASEADD_DIEID 0x00C0
138
139 /* subchip/slave 3 0x4B - AUDIO */
140 #define TWL6030_BASEADD_AUDIO 0x0000
141 #define TWL6030_BASEADD_RSV 0x0000
142 #define TWL6030_BASEADD_ZERO 0x0000
143
144 /* Few power values */
145 #define R_CFG_BOOT 0x05
146
147 /* some fields in R_CFG_BOOT */
148 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
149 #define HFCLK_FREQ_26_MHZ (2 << 0)
150 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
151 #define HIGH_PERF_SQ (1 << 3)
152 #define CK32K_LOWPWR_EN (1 << 7)
153
154 /*----------------------------------------------------------------------*/
155
156 /* is driver active, bound to a chip? */
157 static bool inuse;
158
159 /* TWL IDCODE Register value */
160 static u32 twl_idcode;
161
162 static unsigned int twl_id;
163 unsigned int twl_rev(void)
164 {
165 return twl_id;
166 }
167 EXPORT_SYMBOL(twl_rev);
168
169 /* Structure for each TWL4030/TWL6030 Slave */
170 struct twl_client {
171 struct i2c_client *client;
172 struct regmap *regmap;
173 };
174
175 static struct twl_client twl_modules[TWL_NUM_SLAVES];
176
177 /* mapping the module id to slave id and base address */
178 struct twl_mapping {
179 unsigned char sid; /* Slave ID */
180 unsigned char base; /* base address */
181 };
182 static struct twl_mapping *twl_map;
183
184 static struct twl_mapping twl4030_map[] = {
185 /*
186 * NOTE: don't change this table without updating the
187 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
188 * so they continue to match the order in this table.
189 */
190
191 { 0, TWL4030_BASEADD_USB },
192 { 1, TWL4030_BASEADD_AUDIO_VOICE },
193 { 1, TWL4030_BASEADD_GPIO },
194 { 1, TWL4030_BASEADD_INTBR },
195 { 1, TWL4030_BASEADD_PIH },
196
197 { 1, TWL4030_BASEADD_TEST },
198 { 2, TWL4030_BASEADD_KEYPAD },
199 { 2, TWL4030_BASEADD_MADC },
200 { 2, TWL4030_BASEADD_INTERRUPTS },
201 { 2, TWL4030_BASEADD_LED },
202
203 { 2, TWL4030_BASEADD_MAIN_CHARGE },
204 { 2, TWL4030_BASEADD_PRECHARGE },
205 { 2, TWL4030_BASEADD_PWM0 },
206 { 2, TWL4030_BASEADD_PWM1 },
207 { 2, TWL4030_BASEADD_PWMA },
208
209 { 2, TWL4030_BASEADD_PWMB },
210 { 2, TWL5031_BASEADD_ACCESSORY },
211 { 2, TWL5031_BASEADD_INTERRUPTS },
212 { 3, TWL4030_BASEADD_BACKUP },
213 { 3, TWL4030_BASEADD_INT },
214
215 { 3, TWL4030_BASEADD_PM_MASTER },
216 { 3, TWL4030_BASEADD_PM_RECEIVER },
217 { 3, TWL4030_BASEADD_RTC },
218 { 3, TWL4030_BASEADD_SECURED_REG },
219 };
220
221 static struct regmap_config twl4030_regmap_config[4] = {
222 {
223 /* Address 0x48 */
224 .reg_bits = 8,
225 .val_bits = 8,
226 .max_register = 0xff,
227 },
228 {
229 /* Address 0x49 */
230 .reg_bits = 8,
231 .val_bits = 8,
232 .max_register = 0xff,
233 },
234 {
235 /* Address 0x4a */
236 .reg_bits = 8,
237 .val_bits = 8,
238 .max_register = 0xff,
239 },
240 {
241 /* Address 0x4b */
242 .reg_bits = 8,
243 .val_bits = 8,
244 .max_register = 0xff,
245 },
246 };
247
248 static struct twl_mapping twl6030_map[] = {
249 /*
250 * NOTE: don't change this table without updating the
251 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
252 * so they continue to match the order in this table.
253 */
254 { SUB_CHIP_ID1, TWL6030_BASEADD_USB },
255 { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO },
256 { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
257 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
258 { SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
259
260 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
261 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
262 { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
263 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
264 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
265
266 { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
267 { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
268 { SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
269 { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO },
270 { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO },
271
272 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
273 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
274 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
275 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
276 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
277
278 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
279 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
280 { SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
281 { SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
282 { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER },
283 };
284
285 static struct regmap_config twl6030_regmap_config[3] = {
286 {
287 /* Address 0x48 */
288 .reg_bits = 8,
289 .val_bits = 8,
290 .max_register = 0xff,
291 },
292 {
293 /* Address 0x49 */
294 .reg_bits = 8,
295 .val_bits = 8,
296 .max_register = 0xff,
297 },
298 {
299 /* Address 0x4a */
300 .reg_bits = 8,
301 .val_bits = 8,
302 .max_register = 0xff,
303 },
304 };
305
306 /*----------------------------------------------------------------------*/
307
308 /* Exported Functions */
309
310 /**
311 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
312 * @mod_no: module number
313 * @value: an array of num_bytes+1 containing data to write
314 * @reg: register address (just offset will do)
315 * @num_bytes: number of bytes to transfer
316 *
317 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
318 * valid data starts at Offset 1.
319 *
320 * Returns the result of operation - 0 is success
321 */
322 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
323 {
324 int ret;
325 int sid;
326 struct twl_client *twl;
327
328 if (unlikely(mod_no >= TWL_MODULE_LAST)) {
329 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
330 return -EPERM;
331 }
332 if (unlikely(!inuse)) {
333 pr_err("%s: not initialized\n", DRIVER_NAME);
334 return -EPERM;
335 }
336 sid = twl_map[mod_no].sid;
337 if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
338 pr_err("%s: module %d is not part of the pmic\n",
339 DRIVER_NAME, mod_no);
340 return -EINVAL;
341 }
342 twl = &twl_modules[sid];
343
344 ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg,
345 value, num_bytes);
346
347 if (ret)
348 pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n",
349 DRIVER_NAME, mod_no, reg, num_bytes);
350
351 return ret;
352 }
353 EXPORT_SYMBOL(twl_i2c_write);
354
355 /**
356 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
357 * @mod_no: module number
358 * @value: an array of num_bytes containing data to be read
359 * @reg: register address (just offset will do)
360 * @num_bytes: number of bytes to transfer
361 *
362 * Returns result of operation - num_bytes is success else failure.
363 */
364 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
365 {
366 int ret;
367 int sid;
368 struct twl_client *twl;
369
370 if (unlikely(mod_no >= TWL_MODULE_LAST)) {
371 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
372 return -EPERM;
373 }
374 if (unlikely(!inuse)) {
375 pr_err("%s: not initialized\n", DRIVER_NAME);
376 return -EPERM;
377 }
378 sid = twl_map[mod_no].sid;
379 if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
380 pr_err("%s: module %d is not part of the pmic\n",
381 DRIVER_NAME, mod_no);
382 return -EINVAL;
383 }
384 twl = &twl_modules[sid];
385
386 ret = regmap_bulk_read(twl->regmap, twl_map[mod_no].base + reg,
387 value, num_bytes);
388
389 if (ret)
390 pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n",
391 DRIVER_NAME, mod_no, reg, num_bytes);
392
393 return ret;
394 }
395 EXPORT_SYMBOL(twl_i2c_read);
396
397 /**
398 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
399 * @mod_no: module number
400 * @value: the value to be written 8 bit
401 * @reg: register address (just offset will do)
402 *
403 * Returns result of operation - 0 is success
404 */
405 int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
406 {
407 return twl_i2c_write(mod_no, &value, reg, 1);
408 }
409 EXPORT_SYMBOL(twl_i2c_write_u8);
410
411 /**
412 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
413 * @mod_no: module number
414 * @value: the value read 8 bit
415 * @reg: register address (just offset will do)
416 *
417 * Returns result of operation - 0 is success
418 */
419 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
420 {
421 return twl_i2c_read(mod_no, value, reg, 1);
422 }
423 EXPORT_SYMBOL(twl_i2c_read_u8);
424
425 /*----------------------------------------------------------------------*/
426
427 /**
428 * twl_read_idcode_register - API to read the IDCODE register.
429 *
430 * Unlocks the IDCODE register and read the 32 bit value.
431 */
432 static int twl_read_idcode_register(void)
433 {
434 int err;
435
436 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
437 REG_UNLOCK_TEST_REG);
438 if (err) {
439 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
440 goto fail;
441 }
442
443 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode),
444 REG_IDCODE_7_0, 4);
445 if (err) {
446 pr_err("TWL4030: unable to read IDCODE -%d\n", err);
447 goto fail;
448 }
449
450 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
451 if (err)
452 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
453 fail:
454 return err;
455 }
456
457 /**
458 * twl_get_type - API to get TWL Si type.
459 *
460 * Api to get the TWL Si type from IDCODE value.
461 */
462 int twl_get_type(void)
463 {
464 return TWL_SIL_TYPE(twl_idcode);
465 }
466 EXPORT_SYMBOL_GPL(twl_get_type);
467
468 /**
469 * twl_get_version - API to get TWL Si version.
470 *
471 * Api to get the TWL Si version from IDCODE value.
472 */
473 int twl_get_version(void)
474 {
475 return TWL_SIL_REV(twl_idcode);
476 }
477 EXPORT_SYMBOL_GPL(twl_get_version);
478
479 /**
480 * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate.
481 *
482 * Api to get the TWL HFCLK rate based on BOOT_CFG register.
483 */
484 int twl_get_hfclk_rate(void)
485 {
486 u8 ctrl;
487 int rate;
488
489 twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT);
490
491 switch (ctrl & 0x3) {
492 case HFCLK_FREQ_19p2_MHZ:
493 rate = 19200000;
494 break;
495 case HFCLK_FREQ_26_MHZ:
496 rate = 26000000;
497 break;
498 case HFCLK_FREQ_38p4_MHZ:
499 rate = 38400000;
500 break;
501 default:
502 pr_err("TWL4030: HFCLK is not configured\n");
503 rate = -EINVAL;
504 break;
505 }
506
507 return rate;
508 }
509 EXPORT_SYMBOL_GPL(twl_get_hfclk_rate);
510
511 static struct device *
512 add_numbered_child(unsigned chip, const char *name, int num,
513 void *pdata, unsigned pdata_len,
514 bool can_wakeup, int irq0, int irq1)
515 {
516 struct platform_device *pdev;
517 struct twl_client *twl = &twl_modules[chip];
518 int status;
519
520 pdev = platform_device_alloc(name, num);
521 if (!pdev) {
522 dev_dbg(&twl->client->dev, "can't alloc dev\n");
523 status = -ENOMEM;
524 goto err;
525 }
526
527 pdev->dev.parent = &twl->client->dev;
528
529 if (pdata) {
530 status = platform_device_add_data(pdev, pdata, pdata_len);
531 if (status < 0) {
532 dev_dbg(&pdev->dev, "can't add platform_data\n");
533 goto err;
534 }
535 }
536
537 if (irq0) {
538 struct resource r[2] = {
539 { .start = irq0, .flags = IORESOURCE_IRQ, },
540 { .start = irq1, .flags = IORESOURCE_IRQ, },
541 };
542
543 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
544 if (status < 0) {
545 dev_dbg(&pdev->dev, "can't add irqs\n");
546 goto err;
547 }
548 }
549
550 status = platform_device_add(pdev);
551 if (status == 0)
552 device_init_wakeup(&pdev->dev, can_wakeup);
553
554 err:
555 if (status < 0) {
556 platform_device_put(pdev);
557 dev_err(&twl->client->dev, "can't add %s dev\n", name);
558 return ERR_PTR(status);
559 }
560 return &pdev->dev;
561 }
562
563 static inline struct device *add_child(unsigned chip, const char *name,
564 void *pdata, unsigned pdata_len,
565 bool can_wakeup, int irq0, int irq1)
566 {
567 return add_numbered_child(chip, name, -1, pdata, pdata_len,
568 can_wakeup, irq0, irq1);
569 }
570
571 static struct device *
572 add_regulator_linked(int num, struct regulator_init_data *pdata,
573 struct regulator_consumer_supply *consumers,
574 unsigned num_consumers, unsigned long features)
575 {
576 unsigned sub_chip_id;
577 struct twl_regulator_driver_data drv_data;
578
579 /* regulator framework demands init_data ... */
580 if (!pdata)
581 return NULL;
582
583 if (consumers) {
584 pdata->consumer_supplies = consumers;
585 pdata->num_consumer_supplies = num_consumers;
586 }
587
588 if (pdata->driver_data) {
589 /* If we have existing drv_data, just add the flags */
590 struct twl_regulator_driver_data *tmp;
591 tmp = pdata->driver_data;
592 tmp->features |= features;
593 } else {
594 /* add new driver data struct, used only during init */
595 drv_data.features = features;
596 drv_data.set_voltage = NULL;
597 drv_data.get_voltage = NULL;
598 drv_data.data = NULL;
599 pdata->driver_data = &drv_data;
600 }
601
602 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
603 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
604 return add_numbered_child(sub_chip_id, "twl_reg", num,
605 pdata, sizeof(*pdata), false, 0, 0);
606 }
607
608 static struct device *
609 add_regulator(int num, struct regulator_init_data *pdata,
610 unsigned long features)
611 {
612 return add_regulator_linked(num, pdata, NULL, 0, features);
613 }
614
615 /*
616 * NOTE: We know the first 8 IRQs after pdata->base_irq are
617 * for the PIH, and the next are for the PWR_INT SIH, since
618 * that's how twl_init_irq() sets things up.
619 */
620
621 static int
622 add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
623 unsigned long features)
624 {
625 struct device *child;
626 unsigned sub_chip_id;
627
628 if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) {
629 child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
630 pdata->gpio, sizeof(*pdata->gpio),
631 false, irq_base + GPIO_INTR_OFFSET, 0);
632 if (IS_ERR(child))
633 return PTR_ERR(child);
634 }
635
636 if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) {
637 child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
638 pdata->keypad, sizeof(*pdata->keypad),
639 true, irq_base + KEYPAD_INTR_OFFSET, 0);
640 if (IS_ERR(child))
641 return PTR_ERR(child);
642 }
643
644 if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc &&
645 twl_class_is_4030()) {
646 child = add_child(SUB_CHIP_ID2, "twl4030_madc",
647 pdata->madc, sizeof(*pdata->madc),
648 true, irq_base + MADC_INTR_OFFSET, 0);
649 if (IS_ERR(child))
650 return PTR_ERR(child);
651 }
652
653 if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) {
654 /*
655 * REVISIT platform_data here currently might expose the
656 * "msecure" line ... but for now we just expect board
657 * setup to tell the chip "it's always ok to SET_TIME".
658 * Eventually, Linux might become more aware of such
659 * HW security concerns, and "least privilege".
660 */
661 sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
662 child = add_child(sub_chip_id, "twl_rtc", NULL, 0,
663 true, irq_base + RTC_INTR_OFFSET, 0);
664 if (IS_ERR(child))
665 return PTR_ERR(child);
666 }
667
668 if (IS_ENABLED(CONFIG_PWM_TWL)) {
669 child = add_child(SUB_CHIP_ID1, "twl-pwm", NULL, 0,
670 false, 0, 0);
671 if (IS_ERR(child))
672 return PTR_ERR(child);
673 }
674
675 if (IS_ENABLED(CONFIG_PWM_TWL_LED)) {
676 child = add_child(SUB_CHIP_ID1, "twl-pwmled", NULL, 0,
677 false, 0, 0);
678 if (IS_ERR(child))
679 return PTR_ERR(child);
680 }
681
682 if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb &&
683 twl_class_is_4030()) {
684
685 static struct regulator_consumer_supply usb1v5 = {
686 .supply = "usb1v5",
687 };
688 static struct regulator_consumer_supply usb1v8 = {
689 .supply = "usb1v8",
690 };
691 static struct regulator_consumer_supply usb3v1[] = {
692 { .supply = "usb3v1" },
693 { .supply = "bci3v1" },
694 };
695
696 /* First add the regulators so that they can be used by transceiver */
697 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) {
698 /* this is a template that gets copied */
699 struct regulator_init_data usb_fixed = {
700 .constraints.valid_modes_mask =
701 REGULATOR_MODE_NORMAL
702 | REGULATOR_MODE_STANDBY,
703 .constraints.valid_ops_mask =
704 REGULATOR_CHANGE_MODE
705 | REGULATOR_CHANGE_STATUS,
706 };
707
708 child = add_regulator_linked(TWL4030_REG_VUSB1V5,
709 &usb_fixed, &usb1v5, 1,
710 features);
711 if (IS_ERR(child))
712 return PTR_ERR(child);
713
714 child = add_regulator_linked(TWL4030_REG_VUSB1V8,
715 &usb_fixed, &usb1v8, 1,
716 features);
717 if (IS_ERR(child))
718 return PTR_ERR(child);
719
720 child = add_regulator_linked(TWL4030_REG_VUSB3V1,
721 &usb_fixed, usb3v1, 2,
722 features);
723 if (IS_ERR(child))
724 return PTR_ERR(child);
725
726 }
727
728 child = add_child(SUB_CHIP_ID0, "twl4030_usb",
729 pdata->usb, sizeof(*pdata->usb), true,
730 /* irq0 = USB_PRES, irq1 = USB */
731 irq_base + USB_PRES_INTR_OFFSET,
732 irq_base + USB_INTR_OFFSET);
733
734 if (IS_ERR(child))
735 return PTR_ERR(child);
736
737 /* we need to connect regulators to this transceiver */
738 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) {
739 usb1v5.dev_name = dev_name(child);
740 usb1v8.dev_name = dev_name(child);
741 usb3v1[0].dev_name = dev_name(child);
742 }
743 }
744 if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb &&
745 twl_class_is_6030()) {
746
747 static struct regulator_consumer_supply usb3v3;
748 int regulator;
749
750 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) {
751 /* this is a template that gets copied */
752 struct regulator_init_data usb_fixed = {
753 .constraints.valid_modes_mask =
754 REGULATOR_MODE_NORMAL
755 | REGULATOR_MODE_STANDBY,
756 .constraints.valid_ops_mask =
757 REGULATOR_CHANGE_MODE
758 | REGULATOR_CHANGE_STATUS,
759 };
760
761 if (features & TWL6025_SUBCLASS) {
762 usb3v3.supply = "ldousb";
763 regulator = TWL6025_REG_LDOUSB;
764 } else {
765 usb3v3.supply = "vusb";
766 regulator = TWL6030_REG_VUSB;
767 }
768 child = add_regulator_linked(regulator, &usb_fixed,
769 &usb3v3, 1,
770 features);
771 if (IS_ERR(child))
772 return PTR_ERR(child);
773 }
774
775 pdata->usb->features = features;
776
777 child = add_child(SUB_CHIP_ID0, "twl6030_usb",
778 pdata->usb, sizeof(*pdata->usb), true,
779 /* irq1 = VBUS_PRES, irq0 = USB ID */
780 irq_base + USBOTG_INTR_OFFSET,
781 irq_base + USB_PRES_INTR_OFFSET);
782
783 if (IS_ERR(child))
784 return PTR_ERR(child);
785 /* we need to connect regulators to this transceiver */
786 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child)
787 usb3v3.dev_name = dev_name(child);
788 } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) &&
789 twl_class_is_6030()) {
790 if (features & TWL6025_SUBCLASS)
791 child = add_regulator(TWL6025_REG_LDOUSB,
792 pdata->ldousb, features);
793 else
794 child = add_regulator(TWL6030_REG_VUSB,
795 pdata->vusb, features);
796
797 if (IS_ERR(child))
798 return PTR_ERR(child);
799 }
800
801 if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) {
802 child = add_child(SUB_CHIP_ID3, "twl4030_wdt", NULL, 0,
803 false, 0, 0);
804 if (IS_ERR(child))
805 return PTR_ERR(child);
806 }
807
808 if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) {
809 child = add_child(SUB_CHIP_ID3, "twl4030_pwrbutton", NULL, 0,
810 true, irq_base + 8 + 0, 0);
811 if (IS_ERR(child))
812 return PTR_ERR(child);
813 }
814
815 if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio &&
816 twl_class_is_4030()) {
817 child = add_child(SUB_CHIP_ID1, "twl4030-audio",
818 pdata->audio, sizeof(*pdata->audio),
819 false, 0, 0);
820 if (IS_ERR(child))
821 return PTR_ERR(child);
822 }
823
824 /* twl4030 regulators */
825 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) {
826 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
827 features);
828 if (IS_ERR(child))
829 return PTR_ERR(child);
830
831 child = add_regulator(TWL4030_REG_VIO, pdata->vio,
832 features);
833 if (IS_ERR(child))
834 return PTR_ERR(child);
835
836 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
837 features);
838 if (IS_ERR(child))
839 return PTR_ERR(child);
840
841 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
842 features);
843 if (IS_ERR(child))
844 return PTR_ERR(child);
845
846 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
847 features);
848 if (IS_ERR(child))
849 return PTR_ERR(child);
850
851 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
852 features);
853 if (IS_ERR(child))
854 return PTR_ERR(child);
855
856 child = add_regulator((features & TWL4030_VAUX2)
857 ? TWL4030_REG_VAUX2_4030
858 : TWL4030_REG_VAUX2,
859 pdata->vaux2, features);
860 if (IS_ERR(child))
861 return PTR_ERR(child);
862
863 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
864 features);
865 if (IS_ERR(child))
866 return PTR_ERR(child);
867
868 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
869 features);
870 if (IS_ERR(child))
871 return PTR_ERR(child);
872
873 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
874 features);
875 if (IS_ERR(child))
876 return PTR_ERR(child);
877 }
878
879 /* maybe add LDOs that are omitted on cost-reduced parts */
880 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET)
881 && twl_class_is_4030()) {
882 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
883 features);
884 if (IS_ERR(child))
885 return PTR_ERR(child);
886
887 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
888 features);
889 if (IS_ERR(child))
890 return PTR_ERR(child);
891
892 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
893 features);
894 if (IS_ERR(child))
895 return PTR_ERR(child);
896
897 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
898 features);
899 if (IS_ERR(child))
900 return PTR_ERR(child);
901
902 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
903 features);
904 if (IS_ERR(child))
905 return PTR_ERR(child);
906
907 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
908 features);
909 if (IS_ERR(child))
910 return PTR_ERR(child);
911 }
912
913 /* twl6030 regulators */
914 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() &&
915 !(features & TWL6025_SUBCLASS)) {
916 child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1,
917 features);
918 if (IS_ERR(child))
919 return PTR_ERR(child);
920
921 child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2,
922 features);
923 if (IS_ERR(child))
924 return PTR_ERR(child);
925
926 child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3,
927 features);
928 if (IS_ERR(child))
929 return PTR_ERR(child);
930
931 child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8,
932 features);
933 if (IS_ERR(child))
934 return PTR_ERR(child);
935
936 child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1,
937 features);
938 if (IS_ERR(child))
939 return PTR_ERR(child);
940
941 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
942 features);
943 if (IS_ERR(child))
944 return PTR_ERR(child);
945
946 child = add_regulator(TWL6030_REG_VPP, pdata->vpp,
947 features);
948 if (IS_ERR(child))
949 return PTR_ERR(child);
950
951 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim,
952 features);
953 if (IS_ERR(child))
954 return PTR_ERR(child);
955
956 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio,
957 features);
958 if (IS_ERR(child))
959 return PTR_ERR(child);
960
961 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac,
962 features);
963 if (IS_ERR(child))
964 return PTR_ERR(child);
965
966 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1,
967 features);
968 if (IS_ERR(child))
969 return PTR_ERR(child);
970
971 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2,
972 features);
973 if (IS_ERR(child))
974 return PTR_ERR(child);
975
976 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3,
977 features);
978 if (IS_ERR(child))
979 return PTR_ERR(child);
980
981 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg,
982 features);
983 if (IS_ERR(child))
984 return PTR_ERR(child);
985 }
986
987 /* 6030 and 6025 share this regulator */
988 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) {
989 child = add_regulator(TWL6030_REG_VANA, pdata->vana,
990 features);
991 if (IS_ERR(child))
992 return PTR_ERR(child);
993 }
994
995 /* twl6025 regulators */
996 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() &&
997 (features & TWL6025_SUBCLASS)) {
998 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
999 features);
1000 if (IS_ERR(child))
1001 return PTR_ERR(child);
1002
1003 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1,
1004 features);
1005 if (IS_ERR(child))
1006 return PTR_ERR(child);
1007
1008 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7,
1009 features);
1010 if (IS_ERR(child))
1011 return PTR_ERR(child);
1012
1013 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6,
1014 features);
1015 if (IS_ERR(child))
1016 return PTR_ERR(child);
1017
1018 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln,
1019 features);
1020 if (IS_ERR(child))
1021 return PTR_ERR(child);
1022
1023 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2,
1024 features);
1025 if (IS_ERR(child))
1026 return PTR_ERR(child);
1027
1028 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4,
1029 features);
1030 if (IS_ERR(child))
1031 return PTR_ERR(child);
1032
1033 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3,
1034 features);
1035 if (IS_ERR(child))
1036 return PTR_ERR(child);
1037
1038 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3,
1039 features);
1040 if (IS_ERR(child))
1041 return PTR_ERR(child);
1042
1043 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4,
1044 features);
1045 if (IS_ERR(child))
1046 return PTR_ERR(child);
1047
1048 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025,
1049 features);
1050 if (IS_ERR(child))
1051 return PTR_ERR(child);
1052
1053 }
1054
1055 if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci &&
1056 !(features & (TPS_SUBSET | TWL5031))) {
1057 child = add_child(SUB_CHIP_ID3, "twl4030_bci",
1058 pdata->bci, sizeof(*pdata->bci), false,
1059 /* irq0 = CHG_PRES, irq1 = BCI */
1060 irq_base + BCI_PRES_INTR_OFFSET,
1061 irq_base + BCI_INTR_OFFSET);
1062 if (IS_ERR(child))
1063 return PTR_ERR(child);
1064 }
1065
1066 return 0;
1067 }
1068
1069 /*----------------------------------------------------------------------*/
1070
1071 /*
1072 * These three functions initialize the on-chip clock framework,
1073 * letting it generate the right frequencies for USB, MADC, and
1074 * other purposes.
1075 */
1076 static inline int __init protect_pm_master(void)
1077 {
1078 int e = 0;
1079
1080 e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0,
1081 TWL4030_PM_MASTER_PROTECT_KEY);
1082 return e;
1083 }
1084
1085 static inline int __init unprotect_pm_master(void)
1086 {
1087 int e = 0;
1088
1089 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1,
1090 TWL4030_PM_MASTER_PROTECT_KEY);
1091 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2,
1092 TWL4030_PM_MASTER_PROTECT_KEY);
1093
1094 return e;
1095 }
1096
1097 static void clocks_init(struct device *dev,
1098 struct twl4030_clock_init_data *clock)
1099 {
1100 int e = 0;
1101 struct clk *osc;
1102 u32 rate;
1103 u8 ctrl = HFCLK_FREQ_26_MHZ;
1104
1105 osc = clk_get(dev, "fck");
1106 if (IS_ERR(osc)) {
1107 printk(KERN_WARNING "Skipping twl internal clock init and "
1108 "using bootloader value (unknown osc rate)\n");
1109 return;
1110 }
1111
1112 rate = clk_get_rate(osc);
1113 clk_put(osc);
1114
1115 switch (rate) {
1116 case 19200000:
1117 ctrl = HFCLK_FREQ_19p2_MHZ;
1118 break;
1119 case 26000000:
1120 ctrl = HFCLK_FREQ_26_MHZ;
1121 break;
1122 case 38400000:
1123 ctrl = HFCLK_FREQ_38p4_MHZ;
1124 break;
1125 }
1126
1127 ctrl |= HIGH_PERF_SQ;
1128 if (clock && clock->ck32k_lowpwr_enable)
1129 ctrl |= CK32K_LOWPWR_EN;
1130
1131 e |= unprotect_pm_master();
1132 /* effect->MADC+USB ck en */
1133 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
1134 e |= protect_pm_master();
1135
1136 if (e < 0)
1137 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
1138 }
1139
1140 /*----------------------------------------------------------------------*/
1141
1142
1143 static int twl_remove(struct i2c_client *client)
1144 {
1145 unsigned i, num_slaves;
1146 int status;
1147
1148 if (twl_class_is_4030()) {
1149 status = twl4030_exit_irq();
1150 num_slaves = TWL_NUM_SLAVES;
1151 } else {
1152 status = twl6030_exit_irq();
1153 num_slaves = TWL_NUM_SLAVES - 1;
1154 }
1155
1156 if (status < 0)
1157 return status;
1158
1159 for (i = 0; i < num_slaves; i++) {
1160 struct twl_client *twl = &twl_modules[i];
1161
1162 if (twl->client && twl->client != client)
1163 i2c_unregister_device(twl->client);
1164 twl_modules[i].client = NULL;
1165 }
1166 inuse = false;
1167 return 0;
1168 }
1169
1170 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */
1171 static int
1172 twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
1173 {
1174 struct twl4030_platform_data *pdata = client->dev.platform_data;
1175 struct device_node *node = client->dev.of_node;
1176 struct platform_device *pdev;
1177 struct regmap_config *twl_regmap_config;
1178 int irq_base = 0;
1179 int status;
1180 unsigned i, num_slaves;
1181
1182 pdev = platform_device_alloc(DRIVER_NAME, -1);
1183 if (!pdev) {
1184 dev_err(&client->dev, "can't alloc pdev\n");
1185 return -ENOMEM;
1186 }
1187
1188 status = platform_device_add(pdev);
1189 if (status) {
1190 platform_device_put(pdev);
1191 return status;
1192 }
1193
1194 if (node && !pdata) {
1195 /*
1196 * XXX: Temporary pdata until the information is correctly
1197 * retrieved by every TWL modules from DT.
1198 */
1199 pdata = devm_kzalloc(&client->dev,
1200 sizeof(struct twl4030_platform_data),
1201 GFP_KERNEL);
1202 if (!pdata) {
1203 status = -ENOMEM;
1204 goto free;
1205 }
1206 }
1207
1208 if (!pdata) {
1209 dev_dbg(&client->dev, "no platform data?\n");
1210 status = -EINVAL;
1211 goto free;
1212 }
1213
1214 platform_set_drvdata(pdev, pdata);
1215
1216 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1217 dev_dbg(&client->dev, "can't talk I2C?\n");
1218 status = -EIO;
1219 goto free;
1220 }
1221
1222 if (inuse) {
1223 dev_dbg(&client->dev, "driver is already in use\n");
1224 status = -EBUSY;
1225 goto free;
1226 }
1227
1228 if ((id->driver_data) & TWL6030_CLASS) {
1229 twl_id = TWL6030_CLASS_ID;
1230 twl_map = &twl6030_map[0];
1231 twl_regmap_config = twl6030_regmap_config;
1232 num_slaves = TWL_NUM_SLAVES - 1;
1233 } else {
1234 twl_id = TWL4030_CLASS_ID;
1235 twl_map = &twl4030_map[0];
1236 twl_regmap_config = twl4030_regmap_config;
1237 num_slaves = TWL_NUM_SLAVES;
1238 }
1239
1240 for (i = 0; i < num_slaves; i++) {
1241 struct twl_client *twl = &twl_modules[i];
1242
1243 if (i == 0) {
1244 twl->client = client;
1245 } else {
1246 twl->client = i2c_new_dummy(client->adapter,
1247 client->addr + i);
1248 if (!twl->client) {
1249 dev_err(&client->dev,
1250 "can't attach client %d\n", i);
1251 status = -ENOMEM;
1252 goto fail;
1253 }
1254 }
1255
1256 twl->regmap = devm_regmap_init_i2c(twl->client,
1257 &twl_regmap_config[i]);
1258 if (IS_ERR(twl->regmap)) {
1259 status = PTR_ERR(twl->regmap);
1260 dev_err(&client->dev,
1261 "Failed to allocate regmap %d, err: %d\n", i,
1262 status);
1263 goto fail;
1264 }
1265 }
1266
1267 inuse = true;
1268
1269 /* setup clock framework */
1270 clocks_init(&pdev->dev, pdata->clock);
1271
1272 /* read TWL IDCODE Register */
1273 if (twl_id == TWL4030_CLASS_ID) {
1274 status = twl_read_idcode_register();
1275 WARN(status < 0, "Error: reading twl_idcode register value\n");
1276 }
1277
1278 /* load power event scripts */
1279 if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power)
1280 twl4030_power_init(pdata->power);
1281
1282 /* Maybe init the T2 Interrupt subsystem */
1283 if (client->irq) {
1284 if (twl_class_is_4030()) {
1285 twl4030_init_chip_irq(id->name);
1286 irq_base = twl4030_init_irq(&client->dev, client->irq);
1287 } else {
1288 irq_base = twl6030_init_irq(&client->dev, client->irq);
1289 }
1290
1291 if (irq_base < 0) {
1292 status = irq_base;
1293 goto fail;
1294 }
1295 }
1296
1297 /*
1298 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1299 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1300 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1301 */
1302 if (twl_class_is_4030()) {
1303 u8 temp;
1304
1305 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1306 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
1307 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
1308 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
1309 }
1310
1311 status = -ENODEV;
1312 if (node)
1313 status = of_platform_populate(node, NULL, NULL, &client->dev);
1314 if (status)
1315 status = add_children(pdata, irq_base, id->driver_data);
1316
1317 fail:
1318 if (status < 0)
1319 twl_remove(client);
1320 free:
1321 if (status < 0)
1322 platform_device_unregister(pdev);
1323
1324 return status;
1325 }
1326
1327 static const struct i2c_device_id twl_ids[] = {
1328 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1329 { "twl5030", 0 }, /* T2 updated */
1330 { "twl5031", TWL5031 }, /* TWL5030 updated */
1331 { "tps65950", 0 }, /* catalog version of twl5030 */
1332 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1333 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
1334 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED
1335 and vibrator. Charger in USB module*/
1336 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
1337 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */
1338 { /* end of list */ },
1339 };
1340 MODULE_DEVICE_TABLE(i2c, twl_ids);
1341
1342 /* One Client Driver , 4 Clients */
1343 static struct i2c_driver twl_driver = {
1344 .driver.name = DRIVER_NAME,
1345 .id_table = twl_ids,
1346 .probe = twl_probe,
1347 .remove = twl_remove,
1348 };
1349
1350 static int __init twl_init(void)
1351 {
1352 return i2c_add_driver(&twl_driver);
1353 }
1354 subsys_initcall(twl_init);
1355
1356 static void __exit twl_exit(void)
1357 {
1358 i2c_del_driver(&twl_driver);
1359 }
1360 module_exit(twl_exit);
1361
1362 MODULE_AUTHOR("Texas Instruments, Inc.");
1363 MODULE_DESCRIPTION("I2C Core interface for TWL");
1364 MODULE_LICENSE("GPL");
Linux 2.6 libata-dev (mirror)