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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/platform_device.h>
34#include <linux/clk.h>
35#include <linux/err.h>
36
37#include <linux/regulator/machine.h>
38
39#include <linux/i2c.h>
40#include <linux/i2c/twl.h>
41
42#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
43#include <plat/cpu.h>
44#endif
45
46/*
47 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
48 * Management and System Companion Device" chips originally designed for
49 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
50 * often at around 3 Mbit/sec, including for interrupt handling.
51 *
52 * This driver core provides genirq support for the interrupts emitted,
53 * by the various modules, and exports register access primitives.
54 *
55 * FIXME this driver currently requires use of the first interrupt line
56 * (and associated registers).
57 */
58
59#define DRIVER_NAME "twl"
60
61#if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
62#define twl_has_keypad() true
63#else
64#define twl_has_keypad() false
65#endif
66
67#if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
68#define twl_has_gpio() true
69#else
70#define twl_has_gpio() false
71#endif
72
73#if defined(CONFIG_REGULATOR_TWL4030) \
74 || defined(CONFIG_REGULATOR_TWL4030_MODULE)
75#define twl_has_regulator() true
76#else
77#define twl_has_regulator() false
78#endif
79
80#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
81#define twl_has_madc() true
82#else
83#define twl_has_madc() false
84#endif
85
86#ifdef CONFIG_TWL4030_POWER
87#define twl_has_power() true
88#else
89#define twl_has_power() false
90#endif
91
92#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
93#define twl_has_rtc() true
94#else
95#define twl_has_rtc() false
96#endif
97
98#if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
99 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
100#define twl_has_usb() true
101#else
102#define twl_has_usb() false
103#endif
104
105#if defined(CONFIG_TWL4030_WATCHDOG) || \
106 defined(CONFIG_TWL4030_WATCHDOG_MODULE)
107#define twl_has_watchdog() true
108#else
109#define twl_has_watchdog() false
110#endif
111
112#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\
113 defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE)
114#define twl_has_codec() true
115#else
116#define twl_has_codec() false
117#endif
118
119#if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
120#define twl_has_bci() true
121#else
122#define twl_has_bci() false
123#endif
124
125/* Triton Core internal information (BEGIN) */
126
127/* Last - for index max*/
128#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
129
130#define TWL_NUM_SLAVES 4
131
132#if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
133 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
134#define twl_has_pwrbutton() true
135#else
136#define twl_has_pwrbutton() false
137#endif
138
139#define SUB_CHIP_ID0 0
140#define SUB_CHIP_ID1 1
141#define SUB_CHIP_ID2 2
142#define SUB_CHIP_ID3 3
143
144#define TWL_MODULE_LAST TWL4030_MODULE_LAST
145
146/* Base Address defns for twl4030_map[] */
147
148/* subchip/slave 0 - USB ID */
149#define TWL4030_BASEADD_USB 0x0000
150
151/* subchip/slave 1 - AUD ID */
152#define TWL4030_BASEADD_AUDIO_VOICE 0x0000
153#define TWL4030_BASEADD_GPIO 0x0098
154#define TWL4030_BASEADD_INTBR 0x0085
155#define TWL4030_BASEADD_PIH 0x0080
156#define TWL4030_BASEADD_TEST 0x004C
157
158/* subchip/slave 2 - AUX ID */
159#define TWL4030_BASEADD_INTERRUPTS 0x00B9
160#define TWL4030_BASEADD_LED 0x00EE
161#define TWL4030_BASEADD_MADC 0x0000
162#define TWL4030_BASEADD_MAIN_CHARGE 0x0074
163#define TWL4030_BASEADD_PRECHARGE 0x00AA
164#define TWL4030_BASEADD_PWM0 0x00F8
165#define TWL4030_BASEADD_PWM1 0x00FB
166#define TWL4030_BASEADD_PWMA 0x00EF
167#define TWL4030_BASEADD_PWMB 0x00F1
168#define TWL4030_BASEADD_KEYPAD 0x00D2
169
170#define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
171#define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
172 one */
173
174/* subchip/slave 3 - POWER ID */
175#define TWL4030_BASEADD_BACKUP 0x0014
176#define TWL4030_BASEADD_INT 0x002E
177#define TWL4030_BASEADD_PM_MASTER 0x0036
178#define TWL4030_BASEADD_PM_RECEIVER 0x005B
179#define TWL4030_BASEADD_RTC 0x001C
180#define TWL4030_BASEADD_SECURED_REG 0x0000
181
182/* Triton Core internal information (END) */
183
184
185/* subchip/slave 0 0x48 - POWER */
186#define TWL6030_BASEADD_RTC 0x0000
187#define TWL6030_BASEADD_MEM 0x0017
188#define TWL6030_BASEADD_PM_MASTER 0x001F
189#define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
190#define TWL6030_BASEADD_PM_MISC 0x00E2
191#define TWL6030_BASEADD_PM_PUPD 0x00F0
192
193/* subchip/slave 1 0x49 - FEATURE */
194#define TWL6030_BASEADD_USB 0x0000
195#define TWL6030_BASEADD_GPADC_CTRL 0x002E
196#define TWL6030_BASEADD_AUX 0x0090
197#define TWL6030_BASEADD_PWM 0x00BA
198#define TWL6030_BASEADD_GASGAUGE 0x00C0
199#define TWL6030_BASEADD_PIH 0x00D0
200#define TWL6030_BASEADD_CHARGER 0x00E0
201#define TWL6025_BASEADD_CHARGER 0x00DA
202
203/* subchip/slave 2 0x4A - DFT */
204#define TWL6030_BASEADD_DIEID 0x00C0
205
206/* subchip/slave 3 0x4B - AUDIO */
207#define TWL6030_BASEADD_AUDIO 0x0000
208#define TWL6030_BASEADD_RSV 0x0000
209#define TWL6030_BASEADD_ZERO 0x0000
210
211/* Few power values */
212#define R_CFG_BOOT 0x05
213
214/* some fields in R_CFG_BOOT */
215#define HFCLK_FREQ_19p2_MHZ (1 << 0)
216#define HFCLK_FREQ_26_MHZ (2 << 0)
217#define HFCLK_FREQ_38p4_MHZ (3 << 0)
218#define HIGH_PERF_SQ (1 << 3)
219#define CK32K_LOWPWR_EN (1 << 7)
220
221
222/* chip-specific feature flags, for i2c_device_id.driver_data */
223#define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
224#define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
225#define TWL5031 BIT(2) /* twl5031 has different registers */
226#define TWL6030_CLASS BIT(3) /* TWL6030 class */
227
228/*----------------------------------------------------------------------*/
229
230/* is driver active, bound to a chip? */
231static bool inuse;
232
233/* TWL IDCODE Register value */
234static u32 twl_idcode;
235
236static unsigned int twl_id;
237unsigned int twl_rev(void)
238{
239 return twl_id;
240}
241EXPORT_SYMBOL(twl_rev);
242
243/* Structure for each TWL4030/TWL6030 Slave */
244struct twl_client {
245 struct i2c_client *client;
246 u8 address;
247
248 /* max numb of i2c_msg required is for read =2 */
249 struct i2c_msg xfer_msg[2];
250
251 /* To lock access to xfer_msg */
252 struct mutex xfer_lock;
253};
254
255static struct twl_client twl_modules[TWL_NUM_SLAVES];
256
257
258/* mapping the module id to slave id and base address */
259struct twl_mapping {
260 unsigned char sid; /* Slave ID */
261 unsigned char base; /* base address */
262};
263static struct twl_mapping *twl_map;
264
265static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
266 /*
267 * NOTE: don't change this table without updating the
268 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
269 * so they continue to match the order in this table.
270 */
271
272 { 0, TWL4030_BASEADD_USB },
273
274 { 1, TWL4030_BASEADD_AUDIO_VOICE },
275 { 1, TWL4030_BASEADD_GPIO },
276 { 1, TWL4030_BASEADD_INTBR },
277 { 1, TWL4030_BASEADD_PIH },
278 { 1, TWL4030_BASEADD_TEST },
279
280 { 2, TWL4030_BASEADD_KEYPAD },
281 { 2, TWL4030_BASEADD_MADC },
282 { 2, TWL4030_BASEADD_INTERRUPTS },
283 { 2, TWL4030_BASEADD_LED },
284 { 2, TWL4030_BASEADD_MAIN_CHARGE },
285 { 2, TWL4030_BASEADD_PRECHARGE },
286 { 2, TWL4030_BASEADD_PWM0 },
287 { 2, TWL4030_BASEADD_PWM1 },
288 { 2, TWL4030_BASEADD_PWMA },
289 { 2, TWL4030_BASEADD_PWMB },
290 { 2, TWL5031_BASEADD_ACCESSORY },
291 { 2, TWL5031_BASEADD_INTERRUPTS },
292
293 { 3, TWL4030_BASEADD_BACKUP },
294 { 3, TWL4030_BASEADD_INT },
295 { 3, TWL4030_BASEADD_PM_MASTER },
296 { 3, TWL4030_BASEADD_PM_RECEIVER },
297 { 3, TWL4030_BASEADD_RTC },
298 { 3, TWL4030_BASEADD_SECURED_REG },
299};
300
301static struct twl_mapping twl6030_map[] = {
302 /*
303 * NOTE: don't change this table without updating the
304 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
305 * so they continue to match the order in this table.
306 */
307 { SUB_CHIP_ID1, TWL6030_BASEADD_USB },
308 { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO },
309 { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
310 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
311 { SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
312
313 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
314 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
315 { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
316 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
317 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
318
319 { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
320 { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
321 { SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
322 { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO },
323 { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO },
324
325 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
326 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
327 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
328 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
329 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
330 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
331 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
332
333 { SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
334 { SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
335 { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER },
336};
337
338/*----------------------------------------------------------------------*/
339
340/* Exported Functions */
341
342/**
343 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
344 * @mod_no: module number
345 * @value: an array of num_bytes+1 containing data to write
346 * @reg: register address (just offset will do)
347 * @num_bytes: number of bytes to transfer
348 *
349 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
350 * valid data starts at Offset 1.
351 *
352 * Returns the result of operation - 0 is success
353 */
354int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
355{
356 int ret;
357 int sid;
358 struct twl_client *twl;
359 struct i2c_msg *msg;
360
361 if (unlikely(mod_no > TWL_MODULE_LAST)) {
362 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
363 return -EPERM;
364 }
365 sid = twl_map[mod_no].sid;
366 twl = &twl_modules[sid];
367
368 if (unlikely(!inuse)) {
369 pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
370 return -EPERM;
371 }
372 mutex_lock(&twl->xfer_lock);
373 /*
374 * [MSG1]: fill the register address data
375 * fill the data Tx buffer
376 */
377 msg = &twl->xfer_msg[0];
378 msg->addr = twl->address;
379 msg->len = num_bytes + 1;
380 msg->flags = 0;
381 msg->buf = value;
382 /* over write the first byte of buffer with the register address */
383 *value = twl_map[mod_no].base + reg;
384 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
385 mutex_unlock(&twl->xfer_lock);
386
387 /* i2c_transfer returns number of messages transferred */
388 if (ret != 1) {
389 pr_err("%s: i2c_write failed to transfer all messages\n",
390 DRIVER_NAME);
391 if (ret < 0)
392 return ret;
393 else
394 return -EIO;
395 } else {
396 return 0;
397 }
398}
399EXPORT_SYMBOL(twl_i2c_write);
400
401/**
402 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
403 * @mod_no: module number
404 * @value: an array of num_bytes containing data to be read
405 * @reg: register address (just offset will do)
406 * @num_bytes: number of bytes to transfer
407 *
408 * Returns result of operation - num_bytes is success else failure.
409 */
410int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
411{
412 int ret;
413 u8 val;
414 int sid;
415 struct twl_client *twl;
416 struct i2c_msg *msg;
417
418 if (unlikely(mod_no > TWL_MODULE_LAST)) {
419 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
420 return -EPERM;
421 }
422 sid = twl_map[mod_no].sid;
423 twl = &twl_modules[sid];
424
425 if (unlikely(!inuse)) {
426 pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
427 return -EPERM;
428 }
429 mutex_lock(&twl->xfer_lock);
430 /* [MSG1] fill the register address data */
431 msg = &twl->xfer_msg[0];
432 msg->addr = twl->address;
433 msg->len = 1;
434 msg->flags = 0; /* Read the register value */
435 val = twl_map[mod_no].base + reg;
436 msg->buf = &val;
437 /* [MSG2] fill the data rx buffer */
438 msg = &twl->xfer_msg[1];
439 msg->addr = twl->address;
440 msg->flags = I2C_M_RD; /* Read the register value */
441 msg->len = num_bytes; /* only n bytes */
442 msg->buf = value;
443 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
444 mutex_unlock(&twl->xfer_lock);
445
446 /* i2c_transfer returns number of messages transferred */
447 if (ret != 2) {
448 pr_err("%s: i2c_read failed to transfer all messages\n",
449 DRIVER_NAME);
450 if (ret < 0)
451 return ret;
452 else
453 return -EIO;
454 } else {
455 return 0;
456 }
457}
458EXPORT_SYMBOL(twl_i2c_read);
459
460/**
461 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
462 * @mod_no: module number
463 * @value: the value to be written 8 bit
464 * @reg: register address (just offset will do)
465 *
466 * Returns result of operation - 0 is success
467 */
468int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
469{
470
471 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
472 u8 temp_buffer[2] = { 0 };
473 /* offset 1 contains the data */
474 temp_buffer[1] = value;
475 return twl_i2c_write(mod_no, temp_buffer, reg, 1);
476}
477EXPORT_SYMBOL(twl_i2c_write_u8);
478
479/**
480 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
481 * @mod_no: module number
482 * @value: the value read 8 bit
483 * @reg: register address (just offset will do)
484 *
485 * Returns result of operation - 0 is success
486 */
487int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
488{
489 return twl_i2c_read(mod_no, value, reg, 1);
490}
491EXPORT_SYMBOL(twl_i2c_read_u8);
492
493/*----------------------------------------------------------------------*/
494
495/**
496 * twl_read_idcode_register - API to read the IDCODE register.
497 *
498 * Unlocks the IDCODE register and read the 32 bit value.
499 */
500static int twl_read_idcode_register(void)
501{
502 int err;
503
504 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
505 REG_UNLOCK_TEST_REG);
506 if (err) {
507 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
508 goto fail;
509 }
510
511 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode),
512 REG_IDCODE_7_0, 4);
513 if (err) {
514 pr_err("TWL4030: unable to read IDCODE -%d\n", err);
515 goto fail;
516 }
517
518 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
519 if (err)
520 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
521fail:
522 return err;
523}
524
525/**
526 * twl_get_type - API to get TWL Si type.
527 *
528 * Api to get the TWL Si type from IDCODE value.
529 */
530int twl_get_type(void)
531{
532 return TWL_SIL_TYPE(twl_idcode);
533}
534EXPORT_SYMBOL_GPL(twl_get_type);
535
536/**
537 * twl_get_version - API to get TWL Si version.
538 *
539 * Api to get the TWL Si version from IDCODE value.
540 */
541int twl_get_version(void)
542{
543 return TWL_SIL_REV(twl_idcode);
544}
545EXPORT_SYMBOL_GPL(twl_get_version);
546
547static struct device *
548add_numbered_child(unsigned chip, const char *name, int num,
549 void *pdata, unsigned pdata_len,
550 bool can_wakeup, int irq0, int irq1)
551{
552 struct platform_device *pdev;
553 struct twl_client *twl = &twl_modules[chip];
554 int status;
555
556 pdev = platform_device_alloc(name, num);
557 if (!pdev) {
558 dev_dbg(&twl->client->dev, "can't alloc dev\n");
559 status = -ENOMEM;
560 goto err;
561 }
562
563 device_init_wakeup(&pdev->dev, can_wakeup);
564 pdev->dev.parent = &twl->client->dev;
565
566 if (pdata) {
567 status = platform_device_add_data(pdev, pdata, pdata_len);
568 if (status < 0) {
569 dev_dbg(&pdev->dev, "can't add platform_data\n");
570 goto err;
571 }
572 }
573
574 if (irq0) {
575 struct resource r[2] = {
576 { .start = irq0, .flags = IORESOURCE_IRQ, },
577 { .start = irq1, .flags = IORESOURCE_IRQ, },
578 };
579
580 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
581 if (status < 0) {
582 dev_dbg(&pdev->dev, "can't add irqs\n");
583 goto err;
584 }
585 }
586
587 status = platform_device_add(pdev);
588
589err:
590 if (status < 0) {
591 platform_device_put(pdev);
592 dev_err(&twl->client->dev, "can't add %s dev\n", name);
593 return ERR_PTR(status);
594 }
595 return &pdev->dev;
596}
597
598static inline struct device *add_child(unsigned chip, const char *name,
599 void *pdata, unsigned pdata_len,
600 bool can_wakeup, int irq0, int irq1)
601{
602 return add_numbered_child(chip, name, -1, pdata, pdata_len,
603 can_wakeup, irq0, irq1);
604}
605
606static struct device *
607add_regulator_linked(int num, struct regulator_init_data *pdata,
608 struct regulator_consumer_supply *consumers,
609 unsigned num_consumers, unsigned long features)
610{
611 unsigned sub_chip_id;
612 /* regulator framework demands init_data ... */
613 if (!pdata)
614 return NULL;
615
616 if (consumers) {
617 pdata->consumer_supplies = consumers;
618 pdata->num_consumer_supplies = num_consumers;
619 }
620
621 pdata->driver_data = (void *)features;
622
623 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
624 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
625 return add_numbered_child(sub_chip_id, "twl_reg", num,
626 pdata, sizeof(*pdata), false, 0, 0);
627}
628
629static struct device *
630add_regulator(int num, struct regulator_init_data *pdata,
631 unsigned long features)
632{
633 return add_regulator_linked(num, pdata, NULL, 0, features);
634}
635
636/*
637 * NOTE: We know the first 8 IRQs after pdata->base_irq are
638 * for the PIH, and the next are for the PWR_INT SIH, since
639 * that's how twl_init_irq() sets things up.
640 */
641
642static int
643add_children(struct twl4030_platform_data *pdata, unsigned long features)
644{
645 struct device *child;
646 unsigned sub_chip_id;
647
648 if (twl_has_gpio() && pdata->gpio) {
649 child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
650 pdata->gpio, sizeof(*pdata->gpio),
651 false, pdata->irq_base + GPIO_INTR_OFFSET, 0);
652 if (IS_ERR(child))
653 return PTR_ERR(child);
654 }
655
656 if (twl_has_keypad() && pdata->keypad) {
657 child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
658 pdata->keypad, sizeof(*pdata->keypad),
659 true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0);
660 if (IS_ERR(child))
661 return PTR_ERR(child);
662 }
663
664 if (twl_has_madc() && pdata->madc) {
665 child = add_child(2, "twl4030_madc",
666 pdata->madc, sizeof(*pdata->madc),
667 true, pdata->irq_base + MADC_INTR_OFFSET, 0);
668 if (IS_ERR(child))
669 return PTR_ERR(child);
670 }
671
672 if (twl_has_rtc()) {
673 /*
674 * REVISIT platform_data here currently might expose the
675 * "msecure" line ... but for now we just expect board
676 * setup to tell the chip "it's always ok to SET_TIME".
677 * Eventually, Linux might become more aware of such
678 * HW security concerns, and "least privilege".
679 */
680 sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
681 child = add_child(sub_chip_id, "twl_rtc",
682 NULL, 0,
683 true, pdata->irq_base + RTC_INTR_OFFSET, 0);
684 if (IS_ERR(child))
685 return PTR_ERR(child);
686 }
687
688 if (twl_has_usb() && pdata->usb && twl_class_is_4030()) {
689
690 static struct regulator_consumer_supply usb1v5 = {
691 .supply = "usb1v5",
692 };
693 static struct regulator_consumer_supply usb1v8 = {
694 .supply = "usb1v8",
695 };
696 static struct regulator_consumer_supply usb3v1 = {
697 .supply = "usb3v1",
698 };
699
700 /* First add the regulators so that they can be used by transceiver */
701 if (twl_has_regulator()) {
702 /* this is a template that gets copied */
703 struct regulator_init_data usb_fixed = {
704 .constraints.valid_modes_mask =
705 REGULATOR_MODE_NORMAL
706 | REGULATOR_MODE_STANDBY,
707 .constraints.valid_ops_mask =
708 REGULATOR_CHANGE_MODE
709 | REGULATOR_CHANGE_STATUS,
710 };
711
712 child = add_regulator_linked(TWL4030_REG_VUSB1V5,
713 &usb_fixed, &usb1v5, 1,
714 features);
715 if (IS_ERR(child))
716 return PTR_ERR(child);
717
718 child = add_regulator_linked(TWL4030_REG_VUSB1V8,
719 &usb_fixed, &usb1v8, 1,
720 features);
721 if (IS_ERR(child))
722 return PTR_ERR(child);
723
724 child = add_regulator_linked(TWL4030_REG_VUSB3V1,
725 &usb_fixed, &usb3v1, 1,
726 features);
727 if (IS_ERR(child))
728 return PTR_ERR(child);
729
730 }
731
732 child = add_child(0, "twl4030_usb",
733 pdata->usb, sizeof(*pdata->usb),
734 true,
735 /* irq0 = USB_PRES, irq1 = USB */
736 pdata->irq_base + USB_PRES_INTR_OFFSET,
737 pdata->irq_base + USB_INTR_OFFSET);
738
739 if (IS_ERR(child))
740 return PTR_ERR(child);
741
742 /* we need to connect regulators to this transceiver */
743 if (twl_has_regulator() && child) {
744 usb1v5.dev = child;
745 usb1v8.dev = child;
746 usb3v1.dev = child;
747 }
748 }
749 if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
750
751 static struct regulator_consumer_supply usb3v3;
752 int regulator;
753
754 if (twl_has_regulator()) {
755 /* this is a template that gets copied */
756 struct regulator_init_data usb_fixed = {
757 .constraints.valid_modes_mask =
758 REGULATOR_MODE_NORMAL
759 | REGULATOR_MODE_STANDBY,
760 .constraints.valid_ops_mask =
761 REGULATOR_CHANGE_MODE
762 | REGULATOR_CHANGE_STATUS,
763 };
764
765 if (features & TWL6025_SUBCLASS) {
766 usb3v3.supply = "ldousb";
767 regulator = TWL6025_REG_LDOUSB;
768 } else {
769 usb3v3.supply = "vusb";
770 regulator = TWL6030_REG_VUSB;
771 }
772 child = add_regulator_linked(regulator, &usb_fixed,
773 &usb3v3, 1,
774 features);
775 if (IS_ERR(child))
776 return PTR_ERR(child);
777 }
778
779 pdata->usb->features = features;
780
781 child = add_child(0, "twl6030_usb",
782 pdata->usb, sizeof(*pdata->usb),
783 true,
784 /* irq1 = VBUS_PRES, irq0 = USB ID */
785 pdata->irq_base + USBOTG_INTR_OFFSET,
786 pdata->irq_base + USB_PRES_INTR_OFFSET);
787
788 if (IS_ERR(child))
789 return PTR_ERR(child);
790 /* we need to connect regulators to this transceiver */
791 if (twl_has_regulator() && child)
792 usb3v3.dev = child;
793 } else if (twl_has_regulator() && twl_class_is_6030()) {
794 if (features & TWL6025_SUBCLASS)
795 child = add_regulator(TWL6025_REG_LDOUSB,
796 pdata->ldousb, features);
797 else
798 child = add_regulator(TWL6030_REG_VUSB,
799 pdata->vusb, features);
800
801 if (IS_ERR(child))
802 return PTR_ERR(child);
803 }
804
805 if (twl_has_watchdog() && twl_class_is_4030()) {
806 child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
807 if (IS_ERR(child))
808 return PTR_ERR(child);
809 }
810
811 if (twl_has_pwrbutton() && twl_class_is_4030()) {
812 child = add_child(1, "twl4030_pwrbutton",
813 NULL, 0, true, pdata->irq_base + 8 + 0, 0);
814 if (IS_ERR(child))
815 return PTR_ERR(child);
816 }
817
818 if (twl_has_codec() && pdata->audio && twl_class_is_4030()) {
819 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
820 child = add_child(sub_chip_id, "twl4030-audio",
821 pdata->audio, sizeof(*pdata->audio),
822 false, 0, 0);
823 if (IS_ERR(child))
824 return PTR_ERR(child);
825 }
826
827 if (twl_has_codec() && pdata->audio && twl_class_is_6030()) {
828 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
829 child = add_child(sub_chip_id, "twl6040",
830 pdata->audio, sizeof(*pdata->audio),
831 false, 0, 0);
832 if (IS_ERR(child))
833 return PTR_ERR(child);
834 }
835
836 /* twl4030 regulators */
837 if (twl_has_regulator() && twl_class_is_4030()) {
838 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
839 features);
840 if (IS_ERR(child))
841 return PTR_ERR(child);
842
843 child = add_regulator(TWL4030_REG_VIO, pdata->vio,
844 features);
845 if (IS_ERR(child))
846 return PTR_ERR(child);
847
848 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
849 features);
850 if (IS_ERR(child))
851 return PTR_ERR(child);
852
853 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
854 features);
855 if (IS_ERR(child))
856 return PTR_ERR(child);
857
858 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
859 features);
860 if (IS_ERR(child))
861 return PTR_ERR(child);
862
863 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
864 features);
865 if (IS_ERR(child))
866 return PTR_ERR(child);
867
868 child = add_regulator((features & TWL4030_VAUX2)
869 ? TWL4030_REG_VAUX2_4030
870 : TWL4030_REG_VAUX2,
871 pdata->vaux2, features);
872 if (IS_ERR(child))
873 return PTR_ERR(child);
874
875 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
876 features);
877 if (IS_ERR(child))
878 return PTR_ERR(child);
879
880 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
881 features);
882 if (IS_ERR(child))
883 return PTR_ERR(child);
884
885 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
886 features);
887 if (IS_ERR(child))
888 return PTR_ERR(child);
889 }
890
891 /* maybe add LDOs that are omitted on cost-reduced parts */
892 if (twl_has_regulator() && !(features & TPS_SUBSET)
893 && twl_class_is_4030()) {
894 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
895 features);
896 if (IS_ERR(child))
897 return PTR_ERR(child);
898
899 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
900 features);
901 if (IS_ERR(child))
902 return PTR_ERR(child);
903
904 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
905 features);
906 if (IS_ERR(child))
907 return PTR_ERR(child);
908
909 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
910 features);
911 if (IS_ERR(child))
912 return PTR_ERR(child);
913
914 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
915 features);
916 if (IS_ERR(child))
917 return PTR_ERR(child);
918
919 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
920 features);
921 if (IS_ERR(child))
922 return PTR_ERR(child);
923 }
924
925 /* twl6030 regulators */
926 if (twl_has_regulator() && twl_class_is_6030() &&
927 !(features & TWL6025_SUBCLASS)) {
928 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
929 features);
930 if (IS_ERR(child))
931 return PTR_ERR(child);
932
933 child = add_regulator(TWL6030_REG_VPP, pdata->vpp,
934 features);
935 if (IS_ERR(child))
936 return PTR_ERR(child);
937
938 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim,
939 features);
940 if (IS_ERR(child))
941 return PTR_ERR(child);
942
943 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio,
944 features);
945 if (IS_ERR(child))
946 return PTR_ERR(child);
947
948 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac,
949 features);
950 if (IS_ERR(child))
951 return PTR_ERR(child);
952
953 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1,
954 features);
955 if (IS_ERR(child))
956 return PTR_ERR(child);
957
958 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2,
959 features);
960 if (IS_ERR(child))
961 return PTR_ERR(child);
962
963 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3,
964 features);
965 if (IS_ERR(child))
966 return PTR_ERR(child);
967
968 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg,
969 features);
970 if (IS_ERR(child))
971 return PTR_ERR(child);
972 }
973
974 /* 6030 and 6025 share this regulator */
975 if (twl_has_regulator() && twl_class_is_6030()) {
976 child = add_regulator(TWL6030_REG_VANA, pdata->vana,
977 features);
978 if (IS_ERR(child))
979 return PTR_ERR(child);
980 }
981
982 /* twl6025 regulators */
983 if (twl_has_regulator() && twl_class_is_6030() &&
984 (features & TWL6025_SUBCLASS)) {
985 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
986 features);
987 if (IS_ERR(child))
988 return PTR_ERR(child);
989
990 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1,
991 features);
992 if (IS_ERR(child))
993 return PTR_ERR(child);
994
995 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7,
996 features);
997 if (IS_ERR(child))
998 return PTR_ERR(child);
999
1000 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6,
1001 features);
1002 if (IS_ERR(child))
1003 return PTR_ERR(child);
1004
1005 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln,
1006 features);
1007 if (IS_ERR(child))
1008 return PTR_ERR(child);
1009
1010 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2,
1011 features);
1012 if (IS_ERR(child))
1013 return PTR_ERR(child);
1014
1015 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4,
1016 features);
1017 if (IS_ERR(child))
1018 return PTR_ERR(child);
1019
1020 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3,
1021 features);
1022 if (IS_ERR(child))
1023 return PTR_ERR(child);
1024
1025 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3,
1026 features);
1027 if (IS_ERR(child))
1028 return PTR_ERR(child);
1029
1030 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4,
1031 features);
1032 if (IS_ERR(child))
1033 return PTR_ERR(child);
1034
1035 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025,
1036 features);
1037 if (IS_ERR(child))
1038 return PTR_ERR(child);
1039
1040 }
1041
1042 if (twl_has_bci() && pdata->bci &&
1043 !(features & (TPS_SUBSET | TWL5031))) {
1044 child = add_child(3, "twl4030_bci",
1045 pdata->bci, sizeof(*pdata->bci), false,
1046 /* irq0 = CHG_PRES, irq1 = BCI */
1047 pdata->irq_base + BCI_PRES_INTR_OFFSET,
1048 pdata->irq_base + BCI_INTR_OFFSET);
1049 if (IS_ERR(child))
1050 return PTR_ERR(child);
1051 }
1052
1053 return 0;
1054}
1055
1056/*----------------------------------------------------------------------*/
1057
1058/*
1059 * These three functions initialize the on-chip clock framework,
1060 * letting it generate the right frequencies for USB, MADC, and
1061 * other purposes.
1062 */
1063static inline int __init protect_pm_master(void)
1064{
1065 int e = 0;
1066
1067 e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
1068 TWL4030_PM_MASTER_PROTECT_KEY);
1069 return e;
1070}
1071
1072static inline int __init unprotect_pm_master(void)
1073{
1074 int e = 0;
1075
1076 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1077 TWL4030_PM_MASTER_KEY_CFG1,
1078 TWL4030_PM_MASTER_PROTECT_KEY);
1079 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1080 TWL4030_PM_MASTER_KEY_CFG2,
1081 TWL4030_PM_MASTER_PROTECT_KEY);
1082
1083 return e;
1084}
1085
1086static void clocks_init(struct device *dev,
1087 struct twl4030_clock_init_data *clock)
1088{
1089 int e = 0;
1090 struct clk *osc;
1091 u32 rate;
1092 u8 ctrl = HFCLK_FREQ_26_MHZ;
1093
1094#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
1095 if (cpu_is_omap2430())
1096 osc = clk_get(dev, "osc_ck");
1097 else
1098 osc = clk_get(dev, "osc_sys_ck");
1099
1100 if (IS_ERR(osc)) {
1101 printk(KERN_WARNING "Skipping twl internal clock init and "
1102 "using bootloader value (unknown osc rate)\n");
1103 return;
1104 }
1105
1106 rate = clk_get_rate(osc);
1107 clk_put(osc);
1108
1109#else
1110 /* REVISIT for non-OMAP systems, pass the clock rate from
1111 * board init code, using platform_data.
1112 */
1113 osc = ERR_PTR(-EIO);
1114
1115 printk(KERN_WARNING "Skipping twl internal clock init and "
1116 "using bootloader value (unknown osc rate)\n");
1117
1118 return;
1119#endif
1120
1121 switch (rate) {
1122 case 19200000:
1123 ctrl = HFCLK_FREQ_19p2_MHZ;
1124 break;
1125 case 26000000:
1126 ctrl = HFCLK_FREQ_26_MHZ;
1127 break;
1128 case 38400000:
1129 ctrl = HFCLK_FREQ_38p4_MHZ;
1130 break;
1131 }
1132
1133 ctrl |= HIGH_PERF_SQ;
1134 if (clock && clock->ck32k_lowpwr_enable)
1135 ctrl |= CK32K_LOWPWR_EN;
1136
1137 e |= unprotect_pm_master();
1138 /* effect->MADC+USB ck en */
1139 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
1140 e |= protect_pm_master();
1141
1142 if (e < 0)
1143 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
1144}
1145
1146/*----------------------------------------------------------------------*/
1147
1148int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
1149int twl4030_exit_irq(void);
1150int twl4030_init_chip_irq(const char *chip);
1151int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
1152int twl6030_exit_irq(void);
1153
1154static int twl_remove(struct i2c_client *client)
1155{
1156 unsigned i;
1157 int status;
1158
1159 if (twl_class_is_4030())
1160 status = twl4030_exit_irq();
1161 else
1162 status = twl6030_exit_irq();
1163
1164 if (status < 0)
1165 return status;
1166
1167 for (i = 0; i < TWL_NUM_SLAVES; i++) {
1168 struct twl_client *twl = &twl_modules[i];
1169
1170 if (twl->client && twl->client != client)
1171 i2c_unregister_device(twl->client);
1172 twl_modules[i].client = NULL;
1173 }
1174 inuse = false;
1175 return 0;
1176}
1177
1178/* NOTE: this driver only handles a single twl4030/tps659x0 chip */
1179static int __devinit
1180twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
1181{
1182 int status;
1183 unsigned i;
1184 struct twl4030_platform_data *pdata = client->dev.platform_data;
1185 u8 temp;
1186 int ret = 0;
1187
1188 if (!pdata) {
1189 dev_dbg(&client->dev, "no platform data?\n");
1190 return -EINVAL;
1191 }
1192
1193 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1194 dev_dbg(&client->dev, "can't talk I2C?\n");
1195 return -EIO;
1196 }
1197
1198 if (inuse) {
1199 dev_dbg(&client->dev, "driver is already in use\n");
1200 return -EBUSY;
1201 }
1202
1203 for (i = 0; i < TWL_NUM_SLAVES; i++) {
1204 struct twl_client *twl = &twl_modules[i];
1205
1206 twl->address = client->addr + i;
1207 if (i == 0)
1208 twl->client = client;
1209 else {
1210 twl->client = i2c_new_dummy(client->adapter,
1211 twl->address);
1212 if (!twl->client) {
1213 dev_err(&client->dev,
1214 "can't attach client %d\n", i);
1215 status = -ENOMEM;
1216 goto fail;
1217 }
1218 }
1219 mutex_init(&twl->xfer_lock);
1220 }
1221 inuse = true;
1222 if ((id->driver_data) & TWL6030_CLASS) {
1223 twl_id = TWL6030_CLASS_ID;
1224 twl_map = &twl6030_map[0];
1225 } else {
1226 twl_id = TWL4030_CLASS_ID;
1227 twl_map = &twl4030_map[0];
1228 }
1229
1230 /* setup clock framework */
1231 clocks_init(&client->dev, pdata->clock);
1232
1233 /* read TWL IDCODE Register */
1234 if (twl_id == TWL4030_CLASS_ID) {
1235 ret = twl_read_idcode_register();
1236 WARN(ret < 0, "Error: reading twl_idcode register value\n");
1237 }
1238
1239 /* load power event scripts */
1240 if (twl_has_power() && pdata->power)
1241 twl4030_power_init(pdata->power);
1242
1243 /* Maybe init the T2 Interrupt subsystem */
1244 if (client->irq
1245 && pdata->irq_base
1246 && pdata->irq_end > pdata->irq_base) {
1247 if (twl_class_is_4030()) {
1248 twl4030_init_chip_irq(id->name);
1249 status = twl4030_init_irq(client->irq, pdata->irq_base,
1250 pdata->irq_end);
1251 } else {
1252 status = twl6030_init_irq(client->irq, pdata->irq_base,
1253 pdata->irq_end);
1254 }
1255
1256 if (status < 0)
1257 goto fail;
1258 }
1259
1260 /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1261 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1262 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1263 */
1264
1265 if (twl_class_is_4030()) {
1266 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1267 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
1268 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
1269 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
1270 }
1271
1272 status = add_children(pdata, id->driver_data);
1273fail:
1274 if (status < 0)
1275 twl_remove(client);
1276 return status;
1277}
1278
1279static const struct i2c_device_id twl_ids[] = {
1280 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1281 { "twl5030", 0 }, /* T2 updated */
1282 { "twl5031", TWL5031 }, /* TWL5030 updated */
1283 { "tps65950", 0 }, /* catalog version of twl5030 */
1284 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1285 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
1286 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED
1287 and vibrator. Charger in USB module*/
1288 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
1289 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */
1290 { /* end of list */ },
1291};
1292MODULE_DEVICE_TABLE(i2c, twl_ids);
1293
1294/* One Client Driver , 4 Clients */
1295static struct i2c_driver twl_driver = {
1296 .driver.name = DRIVER_NAME,
1297 .id_table = twl_ids,
1298 .probe = twl_probe,
1299 .remove = twl_remove,
1300};
1301
1302static int __init twl_init(void)
1303{
1304 return i2c_add_driver(&twl_driver);
1305}
1306subsys_initcall(twl_init);
1307
1308static void __exit twl_exit(void)
1309{
1310 i2c_del_driver(&twl_driver);
1311}
1312module_exit(twl_exit);
1313
1314MODULE_AUTHOR("Texas Instruments, Inc.");
1315MODULE_DESCRIPTION("I2C Core interface for TWL");
1316MODULE_LICENSE("GPL");
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/clk.h>
36#include <linux/err.h>
37#include <linux/device.h>
38#include <linux/of.h>
39#include <linux/of_irq.h>
40#include <linux/of_platform.h>
41#include <linux/irq.h>
42#include <linux/irqdomain.h>
43
44#include <linux/regulator/machine.h>
45
46#include <linux/i2c.h>
47#include <linux/i2c/twl.h>
48
49#include "twl-core.h"
50
51/*
52 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
53 * Management and System Companion Device" chips originally designed for
54 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
55 * often at around 3 Mbit/sec, including for interrupt handling.
56 *
57 * This driver core provides genirq support for the interrupts emitted,
58 * by the various modules, and exports register access primitives.
59 *
60 * FIXME this driver currently requires use of the first interrupt line
61 * (and associated registers).
62 */
63
64#define DRIVER_NAME "twl"
65
66#if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
67#define twl_has_keypad() true
68#else
69#define twl_has_keypad() false
70#endif
71
72#if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
73#define twl_has_gpio() true
74#else
75#define twl_has_gpio() false
76#endif
77
78#if defined(CONFIG_REGULATOR_TWL4030) \
79 || defined(CONFIG_REGULATOR_TWL4030_MODULE)
80#define twl_has_regulator() true
81#else
82#define twl_has_regulator() false
83#endif
84
85#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
86#define twl_has_madc() true
87#else
88#define twl_has_madc() false
89#endif
90
91#ifdef CONFIG_TWL4030_POWER
92#define twl_has_power() true
93#else
94#define twl_has_power() false
95#endif
96
97#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
98#define twl_has_rtc() true
99#else
100#define twl_has_rtc() false
101#endif
102
103#if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
104 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
105#define twl_has_usb() true
106#else
107#define twl_has_usb() false
108#endif
109
110#if defined(CONFIG_TWL4030_WATCHDOG) || \
111 defined(CONFIG_TWL4030_WATCHDOG_MODULE)
112#define twl_has_watchdog() true
113#else
114#define twl_has_watchdog() false
115#endif
116
117#if defined(CONFIG_MFD_TWL4030_AUDIO) || \
118 defined(CONFIG_MFD_TWL4030_AUDIO_MODULE)
119#define twl_has_codec() true
120#else
121#define twl_has_codec() false
122#endif
123
124#if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
125#define twl_has_bci() true
126#else
127#define twl_has_bci() false
128#endif
129
130/* Triton Core internal information (BEGIN) */
131
132/* Last - for index max*/
133#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
134
135#define TWL_NUM_SLAVES 4
136
137#if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
138 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
139#define twl_has_pwrbutton() true
140#else
141#define twl_has_pwrbutton() false
142#endif
143
144#define SUB_CHIP_ID0 0
145#define SUB_CHIP_ID1 1
146#define SUB_CHIP_ID2 2
147#define SUB_CHIP_ID3 3
148#define SUB_CHIP_ID_INVAL 0xff
149
150#define TWL_MODULE_LAST TWL4030_MODULE_LAST
151
152/* Base Address defns for twl4030_map[] */
153
154/* subchip/slave 0 - USB ID */
155#define TWL4030_BASEADD_USB 0x0000
156
157/* subchip/slave 1 - AUD ID */
158#define TWL4030_BASEADD_AUDIO_VOICE 0x0000
159#define TWL4030_BASEADD_GPIO 0x0098
160#define TWL4030_BASEADD_INTBR 0x0085
161#define TWL4030_BASEADD_PIH 0x0080
162#define TWL4030_BASEADD_TEST 0x004C
163
164/* subchip/slave 2 - AUX ID */
165#define TWL4030_BASEADD_INTERRUPTS 0x00B9
166#define TWL4030_BASEADD_LED 0x00EE
167#define TWL4030_BASEADD_MADC 0x0000
168#define TWL4030_BASEADD_MAIN_CHARGE 0x0074
169#define TWL4030_BASEADD_PRECHARGE 0x00AA
170#define TWL4030_BASEADD_PWM0 0x00F8
171#define TWL4030_BASEADD_PWM1 0x00FB
172#define TWL4030_BASEADD_PWMA 0x00EF
173#define TWL4030_BASEADD_PWMB 0x00F1
174#define TWL4030_BASEADD_KEYPAD 0x00D2
175
176#define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
177#define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
178 one */
179
180/* subchip/slave 3 - POWER ID */
181#define TWL4030_BASEADD_BACKUP 0x0014
182#define TWL4030_BASEADD_INT 0x002E
183#define TWL4030_BASEADD_PM_MASTER 0x0036
184#define TWL4030_BASEADD_PM_RECEIVER 0x005B
185#define TWL4030_BASEADD_RTC 0x001C
186#define TWL4030_BASEADD_SECURED_REG 0x0000
187
188/* Triton Core internal information (END) */
189
190
191/* subchip/slave 0 0x48 - POWER */
192#define TWL6030_BASEADD_RTC 0x0000
193#define TWL6030_BASEADD_MEM 0x0017
194#define TWL6030_BASEADD_PM_MASTER 0x001F
195#define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
196#define TWL6030_BASEADD_PM_MISC 0x00E2
197#define TWL6030_BASEADD_PM_PUPD 0x00F0
198
199/* subchip/slave 1 0x49 - FEATURE */
200#define TWL6030_BASEADD_USB 0x0000
201#define TWL6030_BASEADD_GPADC_CTRL 0x002E
202#define TWL6030_BASEADD_AUX 0x0090
203#define TWL6030_BASEADD_PWM 0x00BA
204#define TWL6030_BASEADD_GASGAUGE 0x00C0
205#define TWL6030_BASEADD_PIH 0x00D0
206#define TWL6030_BASEADD_CHARGER 0x00E0
207#define TWL6025_BASEADD_CHARGER 0x00DA
208
209/* subchip/slave 2 0x4A - DFT */
210#define TWL6030_BASEADD_DIEID 0x00C0
211
212/* subchip/slave 3 0x4B - AUDIO */
213#define TWL6030_BASEADD_AUDIO 0x0000
214#define TWL6030_BASEADD_RSV 0x0000
215#define TWL6030_BASEADD_ZERO 0x0000
216
217/* Few power values */
218#define R_CFG_BOOT 0x05
219
220/* some fields in R_CFG_BOOT */
221#define HFCLK_FREQ_19p2_MHZ (1 << 0)
222#define HFCLK_FREQ_26_MHZ (2 << 0)
223#define HFCLK_FREQ_38p4_MHZ (3 << 0)
224#define HIGH_PERF_SQ (1 << 3)
225#define CK32K_LOWPWR_EN (1 << 7)
226
227/*----------------------------------------------------------------------*/
228
229/* is driver active, bound to a chip? */
230static bool inuse;
231
232/* TWL IDCODE Register value */
233static u32 twl_idcode;
234
235static unsigned int twl_id;
236unsigned int twl_rev(void)
237{
238 return twl_id;
239}
240EXPORT_SYMBOL(twl_rev);
241
242/* Structure for each TWL4030/TWL6030 Slave */
243struct twl_client {
244 struct i2c_client *client;
245 u8 address;
246
247 /* max numb of i2c_msg required is for read =2 */
248 struct i2c_msg xfer_msg[2];
249
250 /* To lock access to xfer_msg */
251 struct mutex xfer_lock;
252};
253
254static struct twl_client twl_modules[TWL_NUM_SLAVES];
255
256/* mapping the module id to slave id and base address */
257struct twl_mapping {
258 unsigned char sid; /* Slave ID */
259 unsigned char base; /* base address */
260};
261static struct twl_mapping *twl_map;
262
263static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
264 /*
265 * NOTE: don't change this table without updating the
266 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
267 * so they continue to match the order in this table.
268 */
269
270 { 0, TWL4030_BASEADD_USB },
271
272 { 1, TWL4030_BASEADD_AUDIO_VOICE },
273 { 1, TWL4030_BASEADD_GPIO },
274 { 1, TWL4030_BASEADD_INTBR },
275 { 1, TWL4030_BASEADD_PIH },
276 { 1, TWL4030_BASEADD_TEST },
277
278 { 2, TWL4030_BASEADD_KEYPAD },
279 { 2, TWL4030_BASEADD_MADC },
280 { 2, TWL4030_BASEADD_INTERRUPTS },
281 { 2, TWL4030_BASEADD_LED },
282 { 2, TWL4030_BASEADD_MAIN_CHARGE },
283 { 2, TWL4030_BASEADD_PRECHARGE },
284 { 2, TWL4030_BASEADD_PWM0 },
285 { 2, TWL4030_BASEADD_PWM1 },
286 { 2, TWL4030_BASEADD_PWMA },
287 { 2, TWL4030_BASEADD_PWMB },
288 { 2, TWL5031_BASEADD_ACCESSORY },
289 { 2, TWL5031_BASEADD_INTERRUPTS },
290
291 { 3, TWL4030_BASEADD_BACKUP },
292 { 3, TWL4030_BASEADD_INT },
293 { 3, TWL4030_BASEADD_PM_MASTER },
294 { 3, TWL4030_BASEADD_PM_RECEIVER },
295 { 3, TWL4030_BASEADD_RTC },
296 { 3, TWL4030_BASEADD_SECURED_REG },
297};
298
299static struct twl_mapping twl6030_map[] = {
300 /*
301 * NOTE: don't change this table without updating the
302 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
303 * so they continue to match the order in this table.
304 */
305 { SUB_CHIP_ID1, TWL6030_BASEADD_USB },
306 { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO },
307 { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
308 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
309 { SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
310
311 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
312 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
313 { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
314 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
315 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
316
317 { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
318 { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
319 { SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
320 { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO },
321 { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO },
322
323 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
324 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
325 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
326 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
327 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
328 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
329 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
330
331 { SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
332 { SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
333 { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER },
334};
335
336/*----------------------------------------------------------------------*/
337
338/* Exported Functions */
339
340/**
341 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
342 * @mod_no: module number
343 * @value: an array of num_bytes+1 containing data to write
344 * @reg: register address (just offset will do)
345 * @num_bytes: number of bytes to transfer
346 *
347 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
348 * valid data starts at Offset 1.
349 *
350 * Returns the result of operation - 0 is success
351 */
352int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
353{
354 int ret;
355 int sid;
356 struct twl_client *twl;
357 struct i2c_msg *msg;
358
359 if (unlikely(mod_no > TWL_MODULE_LAST)) {
360 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
361 return -EPERM;
362 }
363 if (unlikely(!inuse)) {
364 pr_err("%s: not initialized\n", DRIVER_NAME);
365 return -EPERM;
366 }
367 sid = twl_map[mod_no].sid;
368 if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
369 pr_err("%s: module %d is not part of the pmic\n",
370 DRIVER_NAME, mod_no);
371 return -EINVAL;
372 }
373 twl = &twl_modules[sid];
374
375 mutex_lock(&twl->xfer_lock);
376 /*
377 * [MSG1]: fill the register address data
378 * fill the data Tx buffer
379 */
380 msg = &twl->xfer_msg[0];
381 msg->addr = twl->address;
382 msg->len = num_bytes + 1;
383 msg->flags = 0;
384 msg->buf = value;
385 /* over write the first byte of buffer with the register address */
386 *value = twl_map[mod_no].base + reg;
387 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
388 mutex_unlock(&twl->xfer_lock);
389
390 /* i2c_transfer returns number of messages transferred */
391 if (ret != 1) {
392 pr_err("%s: i2c_write failed to transfer all messages\n",
393 DRIVER_NAME);
394 if (ret < 0)
395 return ret;
396 else
397 return -EIO;
398 } else {
399 return 0;
400 }
401}
402EXPORT_SYMBOL(twl_i2c_write);
403
404/**
405 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
406 * @mod_no: module number
407 * @value: an array of num_bytes containing data to be read
408 * @reg: register address (just offset will do)
409 * @num_bytes: number of bytes to transfer
410 *
411 * Returns result of operation - num_bytes is success else failure.
412 */
413int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
414{
415 int ret;
416 u8 val;
417 int sid;
418 struct twl_client *twl;
419 struct i2c_msg *msg;
420
421 if (unlikely(mod_no > TWL_MODULE_LAST)) {
422 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
423 return -EPERM;
424 }
425 if (unlikely(!inuse)) {
426 pr_err("%s: not initialized\n", DRIVER_NAME);
427 return -EPERM;
428 }
429 sid = twl_map[mod_no].sid;
430 if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
431 pr_err("%s: module %d is not part of the pmic\n",
432 DRIVER_NAME, mod_no);
433 return -EINVAL;
434 }
435 twl = &twl_modules[sid];
436
437 mutex_lock(&twl->xfer_lock);
438 /* [MSG1] fill the register address data */
439 msg = &twl->xfer_msg[0];
440 msg->addr = twl->address;
441 msg->len = 1;
442 msg->flags = 0; /* Read the register value */
443 val = twl_map[mod_no].base + reg;
444 msg->buf = &val;
445 /* [MSG2] fill the data rx buffer */
446 msg = &twl->xfer_msg[1];
447 msg->addr = twl->address;
448 msg->flags = I2C_M_RD; /* Read the register value */
449 msg->len = num_bytes; /* only n bytes */
450 msg->buf = value;
451 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
452 mutex_unlock(&twl->xfer_lock);
453
454 /* i2c_transfer returns number of messages transferred */
455 if (ret != 2) {
456 pr_err("%s: i2c_read failed to transfer all messages\n",
457 DRIVER_NAME);
458 if (ret < 0)
459 return ret;
460 else
461 return -EIO;
462 } else {
463 return 0;
464 }
465}
466EXPORT_SYMBOL(twl_i2c_read);
467
468/**
469 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
470 * @mod_no: module number
471 * @value: the value to be written 8 bit
472 * @reg: register address (just offset will do)
473 *
474 * Returns result of operation - 0 is success
475 */
476int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
477{
478
479 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
480 u8 temp_buffer[2] = { 0 };
481 /* offset 1 contains the data */
482 temp_buffer[1] = value;
483 return twl_i2c_write(mod_no, temp_buffer, reg, 1);
484}
485EXPORT_SYMBOL(twl_i2c_write_u8);
486
487/**
488 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
489 * @mod_no: module number
490 * @value: the value read 8 bit
491 * @reg: register address (just offset will do)
492 *
493 * Returns result of operation - 0 is success
494 */
495int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
496{
497 return twl_i2c_read(mod_no, value, reg, 1);
498}
499EXPORT_SYMBOL(twl_i2c_read_u8);
500
501/*----------------------------------------------------------------------*/
502
503/**
504 * twl_read_idcode_register - API to read the IDCODE register.
505 *
506 * Unlocks the IDCODE register and read the 32 bit value.
507 */
508static int twl_read_idcode_register(void)
509{
510 int err;
511
512 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
513 REG_UNLOCK_TEST_REG);
514 if (err) {
515 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
516 goto fail;
517 }
518
519 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode),
520 REG_IDCODE_7_0, 4);
521 if (err) {
522 pr_err("TWL4030: unable to read IDCODE -%d\n", err);
523 goto fail;
524 }
525
526 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
527 if (err)
528 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
529fail:
530 return err;
531}
532
533/**
534 * twl_get_type - API to get TWL Si type.
535 *
536 * Api to get the TWL Si type from IDCODE value.
537 */
538int twl_get_type(void)
539{
540 return TWL_SIL_TYPE(twl_idcode);
541}
542EXPORT_SYMBOL_GPL(twl_get_type);
543
544/**
545 * twl_get_version - API to get TWL Si version.
546 *
547 * Api to get the TWL Si version from IDCODE value.
548 */
549int twl_get_version(void)
550{
551 return TWL_SIL_REV(twl_idcode);
552}
553EXPORT_SYMBOL_GPL(twl_get_version);
554
555static struct device *
556add_numbered_child(unsigned chip, const char *name, int num,
557 void *pdata, unsigned pdata_len,
558 bool can_wakeup, int irq0, int irq1)
559{
560 struct platform_device *pdev;
561 struct twl_client *twl = &twl_modules[chip];
562 int status;
563
564 pdev = platform_device_alloc(name, num);
565 if (!pdev) {
566 dev_dbg(&twl->client->dev, "can't alloc dev\n");
567 status = -ENOMEM;
568 goto err;
569 }
570
571 device_init_wakeup(&pdev->dev, can_wakeup);
572 pdev->dev.parent = &twl->client->dev;
573
574 if (pdata) {
575 status = platform_device_add_data(pdev, pdata, pdata_len);
576 if (status < 0) {
577 dev_dbg(&pdev->dev, "can't add platform_data\n");
578 goto err;
579 }
580 }
581
582 if (irq0) {
583 struct resource r[2] = {
584 { .start = irq0, .flags = IORESOURCE_IRQ, },
585 { .start = irq1, .flags = IORESOURCE_IRQ, },
586 };
587
588 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
589 if (status < 0) {
590 dev_dbg(&pdev->dev, "can't add irqs\n");
591 goto err;
592 }
593 }
594
595 status = platform_device_add(pdev);
596
597err:
598 if (status < 0) {
599 platform_device_put(pdev);
600 dev_err(&twl->client->dev, "can't add %s dev\n", name);
601 return ERR_PTR(status);
602 }
603 return &pdev->dev;
604}
605
606static inline struct device *add_child(unsigned chip, const char *name,
607 void *pdata, unsigned pdata_len,
608 bool can_wakeup, int irq0, int irq1)
609{
610 return add_numbered_child(chip, name, -1, pdata, pdata_len,
611 can_wakeup, irq0, irq1);
612}
613
614static struct device *
615add_regulator_linked(int num, struct regulator_init_data *pdata,
616 struct regulator_consumer_supply *consumers,
617 unsigned num_consumers, unsigned long features)
618{
619 unsigned sub_chip_id;
620 struct twl_regulator_driver_data drv_data;
621
622 /* regulator framework demands init_data ... */
623 if (!pdata)
624 return NULL;
625
626 if (consumers) {
627 pdata->consumer_supplies = consumers;
628 pdata->num_consumer_supplies = num_consumers;
629 }
630
631 if (pdata->driver_data) {
632 /* If we have existing drv_data, just add the flags */
633 struct twl_regulator_driver_data *tmp;
634 tmp = pdata->driver_data;
635 tmp->features |= features;
636 } else {
637 /* add new driver data struct, used only during init */
638 drv_data.features = features;
639 drv_data.set_voltage = NULL;
640 drv_data.get_voltage = NULL;
641 drv_data.data = NULL;
642 pdata->driver_data = &drv_data;
643 }
644
645 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
646 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
647 return add_numbered_child(sub_chip_id, "twl_reg", num,
648 pdata, sizeof(*pdata), false, 0, 0);
649}
650
651static struct device *
652add_regulator(int num, struct regulator_init_data *pdata,
653 unsigned long features)
654{
655 return add_regulator_linked(num, pdata, NULL, 0, features);
656}
657
658/*
659 * NOTE: We know the first 8 IRQs after pdata->base_irq are
660 * for the PIH, and the next are for the PWR_INT SIH, since
661 * that's how twl_init_irq() sets things up.
662 */
663
664static int
665add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
666 unsigned long features)
667{
668 struct device *child;
669 unsigned sub_chip_id;
670
671 if (twl_has_gpio() && pdata->gpio) {
672 child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
673 pdata->gpio, sizeof(*pdata->gpio),
674 false, irq_base + GPIO_INTR_OFFSET, 0);
675 if (IS_ERR(child))
676 return PTR_ERR(child);
677 }
678
679 if (twl_has_keypad() && pdata->keypad) {
680 child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
681 pdata->keypad, sizeof(*pdata->keypad),
682 true, irq_base + KEYPAD_INTR_OFFSET, 0);
683 if (IS_ERR(child))
684 return PTR_ERR(child);
685 }
686
687 if (twl_has_madc() && pdata->madc) {
688 child = add_child(2, "twl4030_madc",
689 pdata->madc, sizeof(*pdata->madc),
690 true, irq_base + MADC_INTR_OFFSET, 0);
691 if (IS_ERR(child))
692 return PTR_ERR(child);
693 }
694
695 if (twl_has_rtc()) {
696 /*
697 * REVISIT platform_data here currently might expose the
698 * "msecure" line ... but for now we just expect board
699 * setup to tell the chip "it's always ok to SET_TIME".
700 * Eventually, Linux might become more aware of such
701 * HW security concerns, and "least privilege".
702 */
703 sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
704 child = add_child(sub_chip_id, "twl_rtc",
705 NULL, 0,
706 true, irq_base + RTC_INTR_OFFSET, 0);
707 if (IS_ERR(child))
708 return PTR_ERR(child);
709 }
710
711 if (twl_has_usb() && pdata->usb && twl_class_is_4030()) {
712
713 static struct regulator_consumer_supply usb1v5 = {
714 .supply = "usb1v5",
715 };
716 static struct regulator_consumer_supply usb1v8 = {
717 .supply = "usb1v8",
718 };
719 static struct regulator_consumer_supply usb3v1 = {
720 .supply = "usb3v1",
721 };
722
723 /* First add the regulators so that they can be used by transceiver */
724 if (twl_has_regulator()) {
725 /* this is a template that gets copied */
726 struct regulator_init_data usb_fixed = {
727 .constraints.valid_modes_mask =
728 REGULATOR_MODE_NORMAL
729 | REGULATOR_MODE_STANDBY,
730 .constraints.valid_ops_mask =
731 REGULATOR_CHANGE_MODE
732 | REGULATOR_CHANGE_STATUS,
733 };
734
735 child = add_regulator_linked(TWL4030_REG_VUSB1V5,
736 &usb_fixed, &usb1v5, 1,
737 features);
738 if (IS_ERR(child))
739 return PTR_ERR(child);
740
741 child = add_regulator_linked(TWL4030_REG_VUSB1V8,
742 &usb_fixed, &usb1v8, 1,
743 features);
744 if (IS_ERR(child))
745 return PTR_ERR(child);
746
747 child = add_regulator_linked(TWL4030_REG_VUSB3V1,
748 &usb_fixed, &usb3v1, 1,
749 features);
750 if (IS_ERR(child))
751 return PTR_ERR(child);
752
753 }
754
755 child = add_child(0, "twl4030_usb",
756 pdata->usb, sizeof(*pdata->usb),
757 true,
758 /* irq0 = USB_PRES, irq1 = USB */
759 irq_base + USB_PRES_INTR_OFFSET,
760 irq_base + USB_INTR_OFFSET);
761
762 if (IS_ERR(child))
763 return PTR_ERR(child);
764
765 /* we need to connect regulators to this transceiver */
766 if (twl_has_regulator() && child) {
767 usb1v5.dev_name = dev_name(child);
768 usb1v8.dev_name = dev_name(child);
769 usb3v1.dev_name = dev_name(child);
770 }
771 }
772 if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
773
774 static struct regulator_consumer_supply usb3v3;
775 int regulator;
776
777 if (twl_has_regulator()) {
778 /* this is a template that gets copied */
779 struct regulator_init_data usb_fixed = {
780 .constraints.valid_modes_mask =
781 REGULATOR_MODE_NORMAL
782 | REGULATOR_MODE_STANDBY,
783 .constraints.valid_ops_mask =
784 REGULATOR_CHANGE_MODE
785 | REGULATOR_CHANGE_STATUS,
786 };
787
788 if (features & TWL6025_SUBCLASS) {
789 usb3v3.supply = "ldousb";
790 regulator = TWL6025_REG_LDOUSB;
791 } else {
792 usb3v3.supply = "vusb";
793 regulator = TWL6030_REG_VUSB;
794 }
795 child = add_regulator_linked(regulator, &usb_fixed,
796 &usb3v3, 1,
797 features);
798 if (IS_ERR(child))
799 return PTR_ERR(child);
800 }
801
802 pdata->usb->features = features;
803
804 child = add_child(0, "twl6030_usb",
805 pdata->usb, sizeof(*pdata->usb),
806 true,
807 /* irq1 = VBUS_PRES, irq0 = USB ID */
808 irq_base + USBOTG_INTR_OFFSET,
809 irq_base + USB_PRES_INTR_OFFSET);
810
811 if (IS_ERR(child))
812 return PTR_ERR(child);
813 /* we need to connect regulators to this transceiver */
814 if (twl_has_regulator() && child)
815 usb3v3.dev_name = dev_name(child);
816 } else if (twl_has_regulator() && twl_class_is_6030()) {
817 if (features & TWL6025_SUBCLASS)
818 child = add_regulator(TWL6025_REG_LDOUSB,
819 pdata->ldousb, features);
820 else
821 child = add_regulator(TWL6030_REG_VUSB,
822 pdata->vusb, features);
823
824 if (IS_ERR(child))
825 return PTR_ERR(child);
826 }
827
828 if (twl_has_watchdog() && twl_class_is_4030()) {
829 child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
830 if (IS_ERR(child))
831 return PTR_ERR(child);
832 }
833
834 if (twl_has_pwrbutton() && twl_class_is_4030()) {
835 child = add_child(1, "twl4030_pwrbutton",
836 NULL, 0, true, irq_base + 8 + 0, 0);
837 if (IS_ERR(child))
838 return PTR_ERR(child);
839 }
840
841 if (twl_has_codec() && pdata->audio && twl_class_is_4030()) {
842 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
843 child = add_child(sub_chip_id, "twl4030-audio",
844 pdata->audio, sizeof(*pdata->audio),
845 false, 0, 0);
846 if (IS_ERR(child))
847 return PTR_ERR(child);
848 }
849
850 /* twl4030 regulators */
851 if (twl_has_regulator() && twl_class_is_4030()) {
852 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
853 features);
854 if (IS_ERR(child))
855 return PTR_ERR(child);
856
857 child = add_regulator(TWL4030_REG_VIO, pdata->vio,
858 features);
859 if (IS_ERR(child))
860 return PTR_ERR(child);
861
862 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
863 features);
864 if (IS_ERR(child))
865 return PTR_ERR(child);
866
867 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
868 features);
869 if (IS_ERR(child))
870 return PTR_ERR(child);
871
872 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
873 features);
874 if (IS_ERR(child))
875 return PTR_ERR(child);
876
877 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
878 features);
879 if (IS_ERR(child))
880 return PTR_ERR(child);
881
882 child = add_regulator((features & TWL4030_VAUX2)
883 ? TWL4030_REG_VAUX2_4030
884 : TWL4030_REG_VAUX2,
885 pdata->vaux2, features);
886 if (IS_ERR(child))
887 return PTR_ERR(child);
888
889 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
890 features);
891 if (IS_ERR(child))
892 return PTR_ERR(child);
893
894 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
895 features);
896 if (IS_ERR(child))
897 return PTR_ERR(child);
898
899 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
900 features);
901 if (IS_ERR(child))
902 return PTR_ERR(child);
903 }
904
905 /* maybe add LDOs that are omitted on cost-reduced parts */
906 if (twl_has_regulator() && !(features & TPS_SUBSET)
907 && twl_class_is_4030()) {
908 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
909 features);
910 if (IS_ERR(child))
911 return PTR_ERR(child);
912
913 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
914 features);
915 if (IS_ERR(child))
916 return PTR_ERR(child);
917
918 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
919 features);
920 if (IS_ERR(child))
921 return PTR_ERR(child);
922
923 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
924 features);
925 if (IS_ERR(child))
926 return PTR_ERR(child);
927
928 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
929 features);
930 if (IS_ERR(child))
931 return PTR_ERR(child);
932
933 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
934 features);
935 if (IS_ERR(child))
936 return PTR_ERR(child);
937 }
938
939 /* twl6030 regulators */
940 if (twl_has_regulator() && twl_class_is_6030() &&
941 !(features & TWL6025_SUBCLASS)) {
942 child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1,
943 features);
944 if (IS_ERR(child))
945 return PTR_ERR(child);
946
947 child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2,
948 features);
949 if (IS_ERR(child))
950 return PTR_ERR(child);
951
952 child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3,
953 features);
954 if (IS_ERR(child))
955 return PTR_ERR(child);
956
957 child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8,
958 features);
959 if (IS_ERR(child))
960 return PTR_ERR(child);
961
962 child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1,
963 features);
964 if (IS_ERR(child))
965 return PTR_ERR(child);
966
967 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
968 features);
969 if (IS_ERR(child))
970 return PTR_ERR(child);
971
972 child = add_regulator(TWL6030_REG_VPP, pdata->vpp,
973 features);
974 if (IS_ERR(child))
975 return PTR_ERR(child);
976
977 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim,
978 features);
979 if (IS_ERR(child))
980 return PTR_ERR(child);
981
982 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio,
983 features);
984 if (IS_ERR(child))
985 return PTR_ERR(child);
986
987 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac,
988 features);
989 if (IS_ERR(child))
990 return PTR_ERR(child);
991
992 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1,
993 features);
994 if (IS_ERR(child))
995 return PTR_ERR(child);
996
997 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2,
998 features);
999 if (IS_ERR(child))
1000 return PTR_ERR(child);
1001
1002 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3,
1003 features);
1004 if (IS_ERR(child))
1005 return PTR_ERR(child);
1006
1007 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg,
1008 features);
1009 if (IS_ERR(child))
1010 return PTR_ERR(child);
1011 }
1012
1013 /* 6030 and 6025 share this regulator */
1014 if (twl_has_regulator() && twl_class_is_6030()) {
1015 child = add_regulator(TWL6030_REG_VANA, pdata->vana,
1016 features);
1017 if (IS_ERR(child))
1018 return PTR_ERR(child);
1019 }
1020
1021 /* twl6025 regulators */
1022 if (twl_has_regulator() && twl_class_is_6030() &&
1023 (features & TWL6025_SUBCLASS)) {
1024 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
1025 features);
1026 if (IS_ERR(child))
1027 return PTR_ERR(child);
1028
1029 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1,
1030 features);
1031 if (IS_ERR(child))
1032 return PTR_ERR(child);
1033
1034 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7,
1035 features);
1036 if (IS_ERR(child))
1037 return PTR_ERR(child);
1038
1039 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6,
1040 features);
1041 if (IS_ERR(child))
1042 return PTR_ERR(child);
1043
1044 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln,
1045 features);
1046 if (IS_ERR(child))
1047 return PTR_ERR(child);
1048
1049 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2,
1050 features);
1051 if (IS_ERR(child))
1052 return PTR_ERR(child);
1053
1054 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4,
1055 features);
1056 if (IS_ERR(child))
1057 return PTR_ERR(child);
1058
1059 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3,
1060 features);
1061 if (IS_ERR(child))
1062 return PTR_ERR(child);
1063
1064 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3,
1065 features);
1066 if (IS_ERR(child))
1067 return PTR_ERR(child);
1068
1069 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4,
1070 features);
1071 if (IS_ERR(child))
1072 return PTR_ERR(child);
1073
1074 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025,
1075 features);
1076 if (IS_ERR(child))
1077 return PTR_ERR(child);
1078
1079 }
1080
1081 if (twl_has_bci() && pdata->bci &&
1082 !(features & (TPS_SUBSET | TWL5031))) {
1083 child = add_child(3, "twl4030_bci",
1084 pdata->bci, sizeof(*pdata->bci), false,
1085 /* irq0 = CHG_PRES, irq1 = BCI */
1086 irq_base + BCI_PRES_INTR_OFFSET,
1087 irq_base + BCI_INTR_OFFSET);
1088 if (IS_ERR(child))
1089 return PTR_ERR(child);
1090 }
1091
1092 return 0;
1093}
1094
1095/*----------------------------------------------------------------------*/
1096
1097/*
1098 * These three functions initialize the on-chip clock framework,
1099 * letting it generate the right frequencies for USB, MADC, and
1100 * other purposes.
1101 */
1102static inline int __init protect_pm_master(void)
1103{
1104 int e = 0;
1105
1106 e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
1107 TWL4030_PM_MASTER_PROTECT_KEY);
1108 return e;
1109}
1110
1111static inline int __init unprotect_pm_master(void)
1112{
1113 int e = 0;
1114
1115 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1116 TWL4030_PM_MASTER_KEY_CFG1,
1117 TWL4030_PM_MASTER_PROTECT_KEY);
1118 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1119 TWL4030_PM_MASTER_KEY_CFG2,
1120 TWL4030_PM_MASTER_PROTECT_KEY);
1121
1122 return e;
1123}
1124
1125static void clocks_init(struct device *dev,
1126 struct twl4030_clock_init_data *clock)
1127{
1128 int e = 0;
1129 struct clk *osc;
1130 u32 rate;
1131 u8 ctrl = HFCLK_FREQ_26_MHZ;
1132
1133#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
1134 if (cpu_is_omap2430())
1135 osc = clk_get(dev, "osc_ck");
1136 else
1137 osc = clk_get(dev, "osc_sys_ck");
1138
1139 if (IS_ERR(osc)) {
1140 printk(KERN_WARNING "Skipping twl internal clock init and "
1141 "using bootloader value (unknown osc rate)\n");
1142 return;
1143 }
1144
1145 rate = clk_get_rate(osc);
1146 clk_put(osc);
1147
1148#else
1149 /* REVISIT for non-OMAP systems, pass the clock rate from
1150 * board init code, using platform_data.
1151 */
1152 osc = ERR_PTR(-EIO);
1153
1154 printk(KERN_WARNING "Skipping twl internal clock init and "
1155 "using bootloader value (unknown osc rate)\n");
1156
1157 return;
1158#endif
1159
1160 switch (rate) {
1161 case 19200000:
1162 ctrl = HFCLK_FREQ_19p2_MHZ;
1163 break;
1164 case 26000000:
1165 ctrl = HFCLK_FREQ_26_MHZ;
1166 break;
1167 case 38400000:
1168 ctrl = HFCLK_FREQ_38p4_MHZ;
1169 break;
1170 }
1171
1172 ctrl |= HIGH_PERF_SQ;
1173 if (clock && clock->ck32k_lowpwr_enable)
1174 ctrl |= CK32K_LOWPWR_EN;
1175
1176 e |= unprotect_pm_master();
1177 /* effect->MADC+USB ck en */
1178 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
1179 e |= protect_pm_master();
1180
1181 if (e < 0)
1182 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
1183}
1184
1185/*----------------------------------------------------------------------*/
1186
1187
1188static int twl_remove(struct i2c_client *client)
1189{
1190 unsigned i, num_slaves;
1191 int status;
1192
1193 if (twl_class_is_4030()) {
1194 status = twl4030_exit_irq();
1195 num_slaves = TWL_NUM_SLAVES;
1196 } else {
1197 status = twl6030_exit_irq();
1198 num_slaves = TWL_NUM_SLAVES - 1;
1199 }
1200
1201 if (status < 0)
1202 return status;
1203
1204 for (i = 0; i < num_slaves; i++) {
1205 struct twl_client *twl = &twl_modules[i];
1206
1207 if (twl->client && twl->client != client)
1208 i2c_unregister_device(twl->client);
1209 twl_modules[i].client = NULL;
1210 }
1211 inuse = false;
1212 return 0;
1213}
1214
1215/* NOTE: This driver only handles a single twl4030/tps659x0 chip */
1216static int __devinit
1217twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
1218{
1219 struct twl4030_platform_data *pdata = client->dev.platform_data;
1220 struct device_node *node = client->dev.of_node;
1221 int irq_base = 0;
1222 int status;
1223 unsigned i, num_slaves;
1224
1225 if (node && !pdata) {
1226 /*
1227 * XXX: Temporary pdata until the information is correctly
1228 * retrieved by every TWL modules from DT.
1229 */
1230 pdata = devm_kzalloc(&client->dev,
1231 sizeof(struct twl4030_platform_data),
1232 GFP_KERNEL);
1233 if (!pdata)
1234 return -ENOMEM;
1235 }
1236
1237 if (!pdata) {
1238 dev_dbg(&client->dev, "no platform data?\n");
1239 return -EINVAL;
1240 }
1241
1242 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1243 dev_dbg(&client->dev, "can't talk I2C?\n");
1244 return -EIO;
1245 }
1246
1247 if (inuse) {
1248 dev_dbg(&client->dev, "driver is already in use\n");
1249 return -EBUSY;
1250 }
1251
1252 if ((id->driver_data) & TWL6030_CLASS) {
1253 twl_id = TWL6030_CLASS_ID;
1254 twl_map = &twl6030_map[0];
1255 num_slaves = TWL_NUM_SLAVES - 1;
1256 } else {
1257 twl_id = TWL4030_CLASS_ID;
1258 twl_map = &twl4030_map[0];
1259 num_slaves = TWL_NUM_SLAVES;
1260 }
1261
1262 for (i = 0; i < num_slaves; i++) {
1263 struct twl_client *twl = &twl_modules[i];
1264
1265 twl->address = client->addr + i;
1266 if (i == 0) {
1267 twl->client = client;
1268 } else {
1269 twl->client = i2c_new_dummy(client->adapter,
1270 twl->address);
1271 if (!twl->client) {
1272 dev_err(&client->dev,
1273 "can't attach client %d\n", i);
1274 status = -ENOMEM;
1275 goto fail;
1276 }
1277 }
1278 mutex_init(&twl->xfer_lock);
1279 }
1280
1281 inuse = true;
1282
1283 /* setup clock framework */
1284 clocks_init(&client->dev, pdata->clock);
1285
1286 /* read TWL IDCODE Register */
1287 if (twl_id == TWL4030_CLASS_ID) {
1288 status = twl_read_idcode_register();
1289 WARN(status < 0, "Error: reading twl_idcode register value\n");
1290 }
1291
1292 /* load power event scripts */
1293 if (twl_has_power() && pdata->power)
1294 twl4030_power_init(pdata->power);
1295
1296 /* Maybe init the T2 Interrupt subsystem */
1297 if (client->irq) {
1298 if (twl_class_is_4030()) {
1299 twl4030_init_chip_irq(id->name);
1300 irq_base = twl4030_init_irq(&client->dev, client->irq);
1301 } else {
1302 irq_base = twl6030_init_irq(&client->dev, client->irq);
1303 }
1304
1305 if (irq_base < 0) {
1306 status = irq_base;
1307 goto fail;
1308 }
1309 }
1310
1311 /*
1312 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1313 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1314 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1315 */
1316 if (twl_class_is_4030()) {
1317 u8 temp;
1318
1319 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1320 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
1321 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
1322 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
1323 }
1324
1325 status = -ENODEV;
1326 if (node)
1327 status = of_platform_populate(node, NULL, NULL, &client->dev);
1328 if (status)
1329 status = add_children(pdata, irq_base, id->driver_data);
1330
1331fail:
1332 if (status < 0)
1333 twl_remove(client);
1334
1335 return status;
1336}
1337
1338static const struct i2c_device_id twl_ids[] = {
1339 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1340 { "twl5030", 0 }, /* T2 updated */
1341 { "twl5031", TWL5031 }, /* TWL5030 updated */
1342 { "tps65950", 0 }, /* catalog version of twl5030 */
1343 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1344 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
1345 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED
1346 and vibrator. Charger in USB module*/
1347 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
1348 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */
1349 { /* end of list */ },
1350};
1351MODULE_DEVICE_TABLE(i2c, twl_ids);
1352
1353/* One Client Driver , 4 Clients */
1354static struct i2c_driver twl_driver = {
1355 .driver.name = DRIVER_NAME,
1356 .id_table = twl_ids,
1357 .probe = twl_probe,
1358 .remove = twl_remove,
1359};
1360
1361static int __init twl_init(void)
1362{
1363 return i2c_add_driver(&twl_driver);
1364}
1365subsys_initcall(twl_init);
1366
1367static void __exit twl_exit(void)
1368{
1369 i2c_del_driver(&twl_driver);
1370}
1371module_exit(twl_exit);
1372
1373MODULE_AUTHOR("Texas Instruments, Inc.");
1374MODULE_DESCRIPTION("I2C Core interface for TWL");
1375MODULE_LICENSE("GPL");