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_SND_SOC_TWL6040) || defined(CONFIG_SND_SOC_TWL6040_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->codec && 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->codec, sizeof(*pdata->codec), 822 false, 0, 0); 823 if (IS_ERR(child)) 824 return PTR_ERR(child); 825 } 826 827 /* Phoenix codec driver is probed directly atm */ 828 if (twl_has_codec() && pdata->codec && twl_class_is_6030()) { 829 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 830 child = add_child(sub_chip_id, "twl6040-codec", 831 pdata->codec, sizeof(*pdata->codec), 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 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1288 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ 1289 { /* end of list */ }, 1290 }; 1291 MODULE_DEVICE_TABLE(i2c, twl_ids); 1292 1293 /* One Client Driver , 4 Clients */ 1294 static struct i2c_driver twl_driver = { 1295 .driver.name = DRIVER_NAME, 1296 .id_table = twl_ids, 1297 .probe = twl_probe, 1298 .remove = twl_remove, 1299 }; 1300 1301 static int __init twl_init(void) 1302 { 1303 return i2c_add_driver(&twl_driver); 1304 } 1305 subsys_initcall(twl_init); 1306 1307 static void __exit twl_exit(void) 1308 { 1309 i2c_del_driver(&twl_driver); 1310 } 1311 module_exit(twl_exit); 1312 1313 MODULE_AUTHOR("Texas Instruments, Inc."); 1314 MODULE_DESCRIPTION("I2C Core interface for TWL"); 1315 MODULE_LICENSE("GPL"); 1316