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