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? */ 231 static bool inuse; 232 233 /* TWL IDCODE Register value */ 234 static u32 twl_idcode; 235 236 static unsigned int twl_id; 237 unsigned int twl_rev(void) 238 { 239 return twl_id; 240 } 241 EXPORT_SYMBOL(twl_rev); 242 243 /* Structure for each TWL4030/TWL6030 Slave */ 244 struct 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 }; 254 255 static struct twl_client twl_modules[TWL_NUM_SLAVES]; 256 257 258 /* mapping the module id to slave id and base address */ 259 struct twl_mapping { 260 unsigned char sid; /* Slave ID */ 261 unsigned char base; /* base address */ 262 }; 263 static struct twl_mapping *twl_map; 264 265 static 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 }; 300 301 static 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 */ 354 int 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 } 399 EXPORT_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 */ 410 int 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 } 458 EXPORT_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 */ 468 int 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 } 477 EXPORT_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 */ 487 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 488 { 489 return twl_i2c_read(mod_no, value, reg, 1); 490 } 491 EXPORT_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 */ 500 static 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); 521 fail: 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 */ 530 int twl_get_type(void) 531 { 532 return TWL_SIL_TYPE(twl_idcode); 533 } 534 EXPORT_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 */ 541 int twl_get_version(void) 542 { 543 return TWL_SIL_REV(twl_idcode); 544 } 545 EXPORT_SYMBOL_GPL(twl_get_version); 546 547 static struct device * 548 add_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); 588 589 err: 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 } 597 598 static 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 } 605 606 static struct device * 607 add_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 } 628 629 static struct device * 630 add_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 */ 641 642 static int 643 add_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 */ 1063 static 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 1072 static 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 1086 static 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 1148 int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1149 int twl4030_exit_irq(void); 1150 int twl4030_init_chip_irq(const char *chip); 1151 int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1152 int twl6030_exit_irq(void); 1153 1154 static 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 */ 1179 static int __devinit 1180 twl_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); 1273 fail: 1274 if (status < 0) 1275 twl_remove(client); 1276 return status; 1277 } 1278 1279 static 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 }; 1292 MODULE_DEVICE_TABLE(i2c, twl_ids); 1293 1294 /* One Client Driver , 4 Clients */ 1295 static 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 1302 static int __init twl_init(void) 1303 { 1304 return i2c_add_driver(&twl_driver); 1305 } 1306 subsys_initcall(twl_init); 1307 1308 static void __exit twl_exit(void) 1309 { 1310 i2c_del_driver(&twl_driver); 1311 } 1312 module_exit(twl_exit); 1313 1314 MODULE_AUTHOR("Texas Instruments, Inc."); 1315 MODULE_DESCRIPTION("I2C Core interface for TWL"); 1316 MODULE_LICENSE("GPL"); 1317