1 /* 2 * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM 3 * and audio CODEC devices 4 * 5 * Copyright (C) 2005-2006 Texas Instruments, Inc. 6 * 7 * Modifications to defer interrupt handling to a kernel thread: 8 * Copyright (C) 2006 MontaVista Software, Inc. 9 * 10 * Based on tlv320aic23.c: 11 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com> 12 * 13 * Code cleanup and modifications to IRQ handler. 14 * by syed khasim <x0khasim@ti.com> 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or 19 * (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 */ 30 31 #include <linux/init.h> 32 #include <linux/mutex.h> 33 #include <linux/module.h> 34 #include <linux/platform_device.h> 35 #include <linux/regmap.h> 36 #include <linux/clk.h> 37 #include <linux/err.h> 38 #include <linux/device.h> 39 #include <linux/of.h> 40 #include <linux/of_irq.h> 41 #include <linux/of_platform.h> 42 #include <linux/irq.h> 43 #include <linux/irqdomain.h> 44 45 #include <linux/regulator/machine.h> 46 47 #include <linux/i2c.h> 48 #include <linux/i2c/twl.h> 49 50 #include "twl-core.h" 51 52 /* 53 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power 54 * Management and System Companion Device" chips originally designed for 55 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, 56 * often at around 3 Mbit/sec, including for interrupt handling. 57 * 58 * This driver core provides genirq support for the interrupts emitted, 59 * by the various modules, and exports register access primitives. 60 * 61 * FIXME this driver currently requires use of the first interrupt line 62 * (and associated registers). 63 */ 64 65 #define DRIVER_NAME "twl" 66 67 /* Triton Core internal information (BEGIN) */ 68 69 #define TWL_NUM_SLAVES 4 70 71 #define SUB_CHIP_ID0 0 72 #define SUB_CHIP_ID1 1 73 #define SUB_CHIP_ID2 2 74 #define SUB_CHIP_ID3 3 75 #define SUB_CHIP_ID_INVAL 0xff 76 77 /* Base Address defns for twl4030_map[] */ 78 79 /* subchip/slave 0 - USB ID */ 80 #define TWL4030_BASEADD_USB 0x0000 81 82 /* subchip/slave 1 - AUD ID */ 83 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 84 #define TWL4030_BASEADD_GPIO 0x0098 85 #define TWL4030_BASEADD_INTBR 0x0085 86 #define TWL4030_BASEADD_PIH 0x0080 87 #define TWL4030_BASEADD_TEST 0x004C 88 89 /* subchip/slave 2 - AUX ID */ 90 #define TWL4030_BASEADD_INTERRUPTS 0x00B9 91 #define TWL4030_BASEADD_LED 0x00EE 92 #define TWL4030_BASEADD_MADC 0x0000 93 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 94 #define TWL4030_BASEADD_PRECHARGE 0x00AA 95 #define TWL4030_BASEADD_PWM 0x00F8 96 #define TWL4030_BASEADD_KEYPAD 0x00D2 97 98 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ 99 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's 100 one */ 101 102 /* subchip/slave 3 - POWER ID */ 103 #define TWL4030_BASEADD_BACKUP 0x0014 104 #define TWL4030_BASEADD_INT 0x002E 105 #define TWL4030_BASEADD_PM_MASTER 0x0036 106 #define TWL4030_BASEADD_PM_RECEIVER 0x005B 107 #define TWL4030_BASEADD_RTC 0x001C 108 #define TWL4030_BASEADD_SECURED_REG 0x0000 109 110 /* Triton Core internal information (END) */ 111 112 113 /* subchip/slave 0 0x48 - POWER */ 114 #define TWL6030_BASEADD_RTC 0x0000 115 #define TWL6030_BASEADD_SECURED_REG 0x0017 116 #define TWL6030_BASEADD_PM_MASTER 0x001F 117 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ 118 #define TWL6030_BASEADD_PM_MISC 0x00E2 119 #define TWL6030_BASEADD_PM_PUPD 0x00F0 120 121 /* subchip/slave 1 0x49 - FEATURE */ 122 #define TWL6030_BASEADD_USB 0x0000 123 #define TWL6030_BASEADD_GPADC_CTRL 0x002E 124 #define TWL6030_BASEADD_AUX 0x0090 125 #define TWL6030_BASEADD_PWM 0x00BA 126 #define TWL6030_BASEADD_GASGAUGE 0x00C0 127 #define TWL6030_BASEADD_PIH 0x00D0 128 #define TWL6030_BASEADD_CHARGER 0x00E0 129 #define TWL6025_BASEADD_CHARGER 0x00DA 130 #define TWL6030_BASEADD_LED 0x00F4 131 132 /* subchip/slave 2 0x4A - DFT */ 133 #define TWL6030_BASEADD_DIEID 0x00C0 134 135 /* subchip/slave 3 0x4B - AUDIO */ 136 #define TWL6030_BASEADD_AUDIO 0x0000 137 #define TWL6030_BASEADD_RSV 0x0000 138 #define TWL6030_BASEADD_ZERO 0x0000 139 140 /* Few power values */ 141 #define R_CFG_BOOT 0x05 142 143 /* some fields in R_CFG_BOOT */ 144 #define HFCLK_FREQ_19p2_MHZ (1 << 0) 145 #define HFCLK_FREQ_26_MHZ (2 << 0) 146 #define HFCLK_FREQ_38p4_MHZ (3 << 0) 147 #define HIGH_PERF_SQ (1 << 3) 148 #define CK32K_LOWPWR_EN (1 << 7) 149 150 /*----------------------------------------------------------------------*/ 151 152 /* is driver active, bound to a chip? */ 153 static bool inuse; 154 155 /* TWL IDCODE Register value */ 156 static u32 twl_idcode; 157 158 static unsigned int twl_id; 159 unsigned int twl_rev(void) 160 { 161 return twl_id; 162 } 163 EXPORT_SYMBOL(twl_rev); 164 165 /* Structure for each TWL4030/TWL6030 Slave */ 166 struct twl_client { 167 struct i2c_client *client; 168 struct regmap *regmap; 169 }; 170 171 static struct twl_client twl_modules[TWL_NUM_SLAVES]; 172 173 /* mapping the module id to slave id and base address */ 174 struct twl_mapping { 175 unsigned char sid; /* Slave ID */ 176 unsigned char base; /* base address */ 177 }; 178 static struct twl_mapping *twl_map; 179 180 static struct twl_mapping twl4030_map[] = { 181 /* 182 * NOTE: don't change this table without updating the 183 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 184 * so they continue to match the order in this table. 185 */ 186 187 /* Common IPs */ 188 { 0, TWL4030_BASEADD_USB }, 189 { 1, TWL4030_BASEADD_PIH }, 190 { 2, TWL4030_BASEADD_MAIN_CHARGE }, 191 { 3, TWL4030_BASEADD_PM_MASTER }, 192 { 3, TWL4030_BASEADD_PM_RECEIVER }, 193 194 { 3, TWL4030_BASEADD_RTC }, 195 { 2, TWL4030_BASEADD_PWM }, 196 { 2, TWL4030_BASEADD_LED }, 197 { 3, TWL4030_BASEADD_SECURED_REG }, 198 199 /* TWL4030 specific IPs */ 200 { 1, TWL4030_BASEADD_AUDIO_VOICE }, 201 { 1, TWL4030_BASEADD_GPIO }, 202 { 1, TWL4030_BASEADD_INTBR }, 203 { 1, TWL4030_BASEADD_TEST }, 204 { 2, TWL4030_BASEADD_KEYPAD }, 205 206 { 2, TWL4030_BASEADD_MADC }, 207 { 2, TWL4030_BASEADD_INTERRUPTS }, 208 { 2, TWL4030_BASEADD_PRECHARGE }, 209 { 3, TWL4030_BASEADD_BACKUP }, 210 { 3, TWL4030_BASEADD_INT }, 211 212 { 2, TWL5031_BASEADD_ACCESSORY }, 213 { 2, TWL5031_BASEADD_INTERRUPTS }, 214 }; 215 216 static struct regmap_config twl4030_regmap_config[4] = { 217 { 218 /* Address 0x48 */ 219 .reg_bits = 8, 220 .val_bits = 8, 221 .max_register = 0xff, 222 }, 223 { 224 /* Address 0x49 */ 225 .reg_bits = 8, 226 .val_bits = 8, 227 .max_register = 0xff, 228 }, 229 { 230 /* Address 0x4a */ 231 .reg_bits = 8, 232 .val_bits = 8, 233 .max_register = 0xff, 234 }, 235 { 236 /* Address 0x4b */ 237 .reg_bits = 8, 238 .val_bits = 8, 239 .max_register = 0xff, 240 }, 241 }; 242 243 static struct twl_mapping twl6030_map[] = { 244 /* 245 * NOTE: don't change this table without updating the 246 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 247 * so they continue to match the order in this table. 248 */ 249 250 /* Common IPs */ 251 { 1, TWL6030_BASEADD_USB }, 252 { 1, TWL6030_BASEADD_PIH }, 253 { 1, TWL6030_BASEADD_CHARGER }, 254 { 0, TWL6030_BASEADD_PM_MASTER }, 255 { 0, TWL6030_BASEADD_PM_SLAVE_MISC }, 256 257 { 0, TWL6030_BASEADD_RTC }, 258 { 1, TWL6030_BASEADD_PWM }, 259 { 1, TWL6030_BASEADD_LED }, 260 { 0, TWL6030_BASEADD_SECURED_REG }, 261 262 /* TWL6030 specific IPs */ 263 { 0, TWL6030_BASEADD_ZERO }, 264 { 1, TWL6030_BASEADD_ZERO }, 265 { 2, TWL6030_BASEADD_ZERO }, 266 { 1, TWL6030_BASEADD_GPADC_CTRL }, 267 { 1, TWL6030_BASEADD_GASGAUGE }, 268 }; 269 270 static struct regmap_config twl6030_regmap_config[3] = { 271 { 272 /* Address 0x48 */ 273 .reg_bits = 8, 274 .val_bits = 8, 275 .max_register = 0xff, 276 }, 277 { 278 /* Address 0x49 */ 279 .reg_bits = 8, 280 .val_bits = 8, 281 .max_register = 0xff, 282 }, 283 { 284 /* Address 0x4a */ 285 .reg_bits = 8, 286 .val_bits = 8, 287 .max_register = 0xff, 288 }, 289 }; 290 291 /*----------------------------------------------------------------------*/ 292 293 static inline int twl_get_last_module(void) 294 { 295 if (twl_class_is_4030()) 296 return TWL4030_MODULE_LAST; 297 else 298 return TWL6030_MODULE_LAST; 299 } 300 301 /* Exported Functions */ 302 303 /** 304 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 305 * @mod_no: module number 306 * @value: an array of num_bytes+1 containing data to write 307 * @reg: register address (just offset will do) 308 * @num_bytes: number of bytes to transfer 309 * 310 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and 311 * valid data starts at Offset 1. 312 * 313 * Returns the result of operation - 0 is success 314 */ 315 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 316 { 317 int ret; 318 int sid; 319 struct twl_client *twl; 320 321 if (unlikely(mod_no >= twl_get_last_module())) { 322 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 323 return -EPERM; 324 } 325 if (unlikely(!inuse)) { 326 pr_err("%s: not initialized\n", DRIVER_NAME); 327 return -EPERM; 328 } 329 sid = twl_map[mod_no].sid; 330 if (unlikely(sid == SUB_CHIP_ID_INVAL)) { 331 pr_err("%s: module %d is not part of the pmic\n", 332 DRIVER_NAME, mod_no); 333 return -EINVAL; 334 } 335 twl = &twl_modules[sid]; 336 337 ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg, 338 value, num_bytes); 339 340 if (ret) 341 pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", 342 DRIVER_NAME, mod_no, reg, num_bytes); 343 344 return ret; 345 } 346 EXPORT_SYMBOL(twl_i2c_write); 347 348 /** 349 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 350 * @mod_no: module number 351 * @value: an array of num_bytes containing data to be read 352 * @reg: register address (just offset will do) 353 * @num_bytes: number of bytes to transfer 354 * 355 * Returns result of operation - num_bytes is success else failure. 356 */ 357 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 358 { 359 int ret; 360 int sid; 361 struct twl_client *twl; 362 363 if (unlikely(mod_no >= twl_get_last_module())) { 364 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 365 return -EPERM; 366 } 367 if (unlikely(!inuse)) { 368 pr_err("%s: not initialized\n", DRIVER_NAME); 369 return -EPERM; 370 } 371 sid = twl_map[mod_no].sid; 372 if (unlikely(sid == SUB_CHIP_ID_INVAL)) { 373 pr_err("%s: module %d is not part of the pmic\n", 374 DRIVER_NAME, mod_no); 375 return -EINVAL; 376 } 377 twl = &twl_modules[sid]; 378 379 ret = regmap_bulk_read(twl->regmap, twl_map[mod_no].base + reg, 380 value, num_bytes); 381 382 if (ret) 383 pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n", 384 DRIVER_NAME, mod_no, reg, num_bytes); 385 386 return ret; 387 } 388 EXPORT_SYMBOL(twl_i2c_read); 389 390 /** 391 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 392 * @mod_no: module number 393 * @value: the value to be written 8 bit 394 * @reg: register address (just offset will do) 395 * 396 * Returns result of operation - 0 is success 397 */ 398 int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 399 { 400 return twl_i2c_write(mod_no, &value, reg, 1); 401 } 402 EXPORT_SYMBOL(twl_i2c_write_u8); 403 404 /** 405 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 406 * @mod_no: module number 407 * @value: the value read 8 bit 408 * @reg: register address (just offset will do) 409 * 410 * Returns result of operation - 0 is success 411 */ 412 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 413 { 414 return twl_i2c_read(mod_no, value, reg, 1); 415 } 416 EXPORT_SYMBOL(twl_i2c_read_u8); 417 418 /*----------------------------------------------------------------------*/ 419 420 /** 421 * twl_read_idcode_register - API to read the IDCODE register. 422 * 423 * Unlocks the IDCODE register and read the 32 bit value. 424 */ 425 static int twl_read_idcode_register(void) 426 { 427 int err; 428 429 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, 430 REG_UNLOCK_TEST_REG); 431 if (err) { 432 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); 433 goto fail; 434 } 435 436 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), 437 REG_IDCODE_7_0, 4); 438 if (err) { 439 pr_err("TWL4030: unable to read IDCODE -%d\n", err); 440 goto fail; 441 } 442 443 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); 444 if (err) 445 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); 446 fail: 447 return err; 448 } 449 450 /** 451 * twl_get_type - API to get TWL Si type. 452 * 453 * Api to get the TWL Si type from IDCODE value. 454 */ 455 int twl_get_type(void) 456 { 457 return TWL_SIL_TYPE(twl_idcode); 458 } 459 EXPORT_SYMBOL_GPL(twl_get_type); 460 461 /** 462 * twl_get_version - API to get TWL Si version. 463 * 464 * Api to get the TWL Si version from IDCODE value. 465 */ 466 int twl_get_version(void) 467 { 468 return TWL_SIL_REV(twl_idcode); 469 } 470 EXPORT_SYMBOL_GPL(twl_get_version); 471 472 /** 473 * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. 474 * 475 * Api to get the TWL HFCLK rate based on BOOT_CFG register. 476 */ 477 int twl_get_hfclk_rate(void) 478 { 479 u8 ctrl; 480 int rate; 481 482 twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); 483 484 switch (ctrl & 0x3) { 485 case HFCLK_FREQ_19p2_MHZ: 486 rate = 19200000; 487 break; 488 case HFCLK_FREQ_26_MHZ: 489 rate = 26000000; 490 break; 491 case HFCLK_FREQ_38p4_MHZ: 492 rate = 38400000; 493 break; 494 default: 495 pr_err("TWL4030: HFCLK is not configured\n"); 496 rate = -EINVAL; 497 break; 498 } 499 500 return rate; 501 } 502 EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); 503 504 static struct device * 505 add_numbered_child(unsigned chip, const char *name, int num, 506 void *pdata, unsigned pdata_len, 507 bool can_wakeup, int irq0, int irq1) 508 { 509 struct platform_device *pdev; 510 struct twl_client *twl = &twl_modules[chip]; 511 int status; 512 513 pdev = platform_device_alloc(name, num); 514 if (!pdev) { 515 dev_dbg(&twl->client->dev, "can't alloc dev\n"); 516 status = -ENOMEM; 517 goto err; 518 } 519 520 pdev->dev.parent = &twl->client->dev; 521 522 if (pdata) { 523 status = platform_device_add_data(pdev, pdata, pdata_len); 524 if (status < 0) { 525 dev_dbg(&pdev->dev, "can't add platform_data\n"); 526 goto err; 527 } 528 } 529 530 if (irq0) { 531 struct resource r[2] = { 532 { .start = irq0, .flags = IORESOURCE_IRQ, }, 533 { .start = irq1, .flags = IORESOURCE_IRQ, }, 534 }; 535 536 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 537 if (status < 0) { 538 dev_dbg(&pdev->dev, "can't add irqs\n"); 539 goto err; 540 } 541 } 542 543 status = platform_device_add(pdev); 544 if (status == 0) 545 device_init_wakeup(&pdev->dev, can_wakeup); 546 547 err: 548 if (status < 0) { 549 platform_device_put(pdev); 550 dev_err(&twl->client->dev, "can't add %s dev\n", name); 551 return ERR_PTR(status); 552 } 553 return &pdev->dev; 554 } 555 556 static inline struct device *add_child(unsigned chip, const char *name, 557 void *pdata, unsigned pdata_len, 558 bool can_wakeup, int irq0, int irq1) 559 { 560 return add_numbered_child(chip, name, -1, pdata, pdata_len, 561 can_wakeup, irq0, irq1); 562 } 563 564 static struct device * 565 add_regulator_linked(int num, struct regulator_init_data *pdata, 566 struct regulator_consumer_supply *consumers, 567 unsigned num_consumers, unsigned long features) 568 { 569 unsigned sub_chip_id; 570 struct twl_regulator_driver_data drv_data; 571 572 /* regulator framework demands init_data ... */ 573 if (!pdata) 574 return NULL; 575 576 if (consumers) { 577 pdata->consumer_supplies = consumers; 578 pdata->num_consumer_supplies = num_consumers; 579 } 580 581 if (pdata->driver_data) { 582 /* If we have existing drv_data, just add the flags */ 583 struct twl_regulator_driver_data *tmp; 584 tmp = pdata->driver_data; 585 tmp->features |= features; 586 } else { 587 /* add new driver data struct, used only during init */ 588 drv_data.features = features; 589 drv_data.set_voltage = NULL; 590 drv_data.get_voltage = NULL; 591 drv_data.data = NULL; 592 pdata->driver_data = &drv_data; 593 } 594 595 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 596 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; 597 return add_numbered_child(sub_chip_id, "twl_reg", num, 598 pdata, sizeof(*pdata), false, 0, 0); 599 } 600 601 static struct device * 602 add_regulator(int num, struct regulator_init_data *pdata, 603 unsigned long features) 604 { 605 return add_regulator_linked(num, pdata, NULL, 0, features); 606 } 607 608 /* 609 * NOTE: We know the first 8 IRQs after pdata->base_irq are 610 * for the PIH, and the next are for the PWR_INT SIH, since 611 * that's how twl_init_irq() sets things up. 612 */ 613 614 static int 615 add_children(struct twl4030_platform_data *pdata, unsigned irq_base, 616 unsigned long features) 617 { 618 struct device *child; 619 unsigned sub_chip_id; 620 621 if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) { 622 child = add_child(SUB_CHIP_ID1, "twl4030_gpio", 623 pdata->gpio, sizeof(*pdata->gpio), 624 false, irq_base + GPIO_INTR_OFFSET, 0); 625 if (IS_ERR(child)) 626 return PTR_ERR(child); 627 } 628 629 if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) { 630 child = add_child(SUB_CHIP_ID2, "twl4030_keypad", 631 pdata->keypad, sizeof(*pdata->keypad), 632 true, irq_base + KEYPAD_INTR_OFFSET, 0); 633 if (IS_ERR(child)) 634 return PTR_ERR(child); 635 } 636 637 if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && 638 twl_class_is_4030()) { 639 child = add_child(SUB_CHIP_ID2, "twl4030_madc", 640 pdata->madc, sizeof(*pdata->madc), 641 true, irq_base + MADC_INTR_OFFSET, 0); 642 if (IS_ERR(child)) 643 return PTR_ERR(child); 644 } 645 646 if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) { 647 /* 648 * REVISIT platform_data here currently might expose the 649 * "msecure" line ... but for now we just expect board 650 * setup to tell the chip "it's always ok to SET_TIME". 651 * Eventually, Linux might become more aware of such 652 * HW security concerns, and "least privilege". 653 */ 654 sub_chip_id = twl_map[TWL_MODULE_RTC].sid; 655 child = add_child(sub_chip_id, "twl_rtc", NULL, 0, 656 true, irq_base + RTC_INTR_OFFSET, 0); 657 if (IS_ERR(child)) 658 return PTR_ERR(child); 659 } 660 661 if (IS_ENABLED(CONFIG_PWM_TWL)) { 662 child = add_child(SUB_CHIP_ID1, "twl-pwm", NULL, 0, 663 false, 0, 0); 664 if (IS_ERR(child)) 665 return PTR_ERR(child); 666 } 667 668 if (IS_ENABLED(CONFIG_PWM_TWL_LED)) { 669 child = add_child(SUB_CHIP_ID1, "twl-pwmled", NULL, 0, 670 false, 0, 0); 671 if (IS_ERR(child)) 672 return PTR_ERR(child); 673 } 674 675 if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb && 676 twl_class_is_4030()) { 677 678 static struct regulator_consumer_supply usb1v5 = { 679 .supply = "usb1v5", 680 }; 681 static struct regulator_consumer_supply usb1v8 = { 682 .supply = "usb1v8", 683 }; 684 static struct regulator_consumer_supply usb3v1[] = { 685 { .supply = "usb3v1" }, 686 { .supply = "bci3v1" }, 687 }; 688 689 /* First add the regulators so that they can be used by transceiver */ 690 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { 691 /* this is a template that gets copied */ 692 struct regulator_init_data usb_fixed = { 693 .constraints.valid_modes_mask = 694 REGULATOR_MODE_NORMAL 695 | REGULATOR_MODE_STANDBY, 696 .constraints.valid_ops_mask = 697 REGULATOR_CHANGE_MODE 698 | REGULATOR_CHANGE_STATUS, 699 }; 700 701 child = add_regulator_linked(TWL4030_REG_VUSB1V5, 702 &usb_fixed, &usb1v5, 1, 703 features); 704 if (IS_ERR(child)) 705 return PTR_ERR(child); 706 707 child = add_regulator_linked(TWL4030_REG_VUSB1V8, 708 &usb_fixed, &usb1v8, 1, 709 features); 710 if (IS_ERR(child)) 711 return PTR_ERR(child); 712 713 child = add_regulator_linked(TWL4030_REG_VUSB3V1, 714 &usb_fixed, usb3v1, 2, 715 features); 716 if (IS_ERR(child)) 717 return PTR_ERR(child); 718 719 } 720 721 child = add_child(SUB_CHIP_ID0, "twl4030_usb", 722 pdata->usb, sizeof(*pdata->usb), true, 723 /* irq0 = USB_PRES, irq1 = USB */ 724 irq_base + USB_PRES_INTR_OFFSET, 725 irq_base + USB_INTR_OFFSET); 726 727 if (IS_ERR(child)) 728 return PTR_ERR(child); 729 730 /* we need to connect regulators to this transceiver */ 731 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) { 732 usb1v5.dev_name = dev_name(child); 733 usb1v8.dev_name = dev_name(child); 734 usb3v1[0].dev_name = dev_name(child); 735 } 736 } 737 if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && 738 twl_class_is_6030()) { 739 740 static struct regulator_consumer_supply usb3v3; 741 int regulator; 742 743 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { 744 /* this is a template that gets copied */ 745 struct regulator_init_data usb_fixed = { 746 .constraints.valid_modes_mask = 747 REGULATOR_MODE_NORMAL 748 | REGULATOR_MODE_STANDBY, 749 .constraints.valid_ops_mask = 750 REGULATOR_CHANGE_MODE 751 | REGULATOR_CHANGE_STATUS, 752 }; 753 754 if (features & TWL6025_SUBCLASS) { 755 usb3v3.supply = "ldousb"; 756 regulator = TWL6025_REG_LDOUSB; 757 } else { 758 usb3v3.supply = "vusb"; 759 regulator = TWL6030_REG_VUSB; 760 } 761 child = add_regulator_linked(regulator, &usb_fixed, 762 &usb3v3, 1, 763 features); 764 if (IS_ERR(child)) 765 return PTR_ERR(child); 766 } 767 768 pdata->usb->features = features; 769 770 child = add_child(SUB_CHIP_ID0, "twl6030_usb", 771 pdata->usb, sizeof(*pdata->usb), true, 772 /* irq1 = VBUS_PRES, irq0 = USB ID */ 773 irq_base + USBOTG_INTR_OFFSET, 774 irq_base + USB_PRES_INTR_OFFSET); 775 776 if (IS_ERR(child)) 777 return PTR_ERR(child); 778 /* we need to connect regulators to this transceiver */ 779 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) 780 usb3v3.dev_name = dev_name(child); 781 } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && 782 twl_class_is_6030()) { 783 if (features & TWL6025_SUBCLASS) 784 child = add_regulator(TWL6025_REG_LDOUSB, 785 pdata->ldousb, features); 786 else 787 child = add_regulator(TWL6030_REG_VUSB, 788 pdata->vusb, features); 789 790 if (IS_ERR(child)) 791 return PTR_ERR(child); 792 } 793 794 if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { 795 child = add_child(SUB_CHIP_ID3, "twl4030_wdt", NULL, 0, 796 false, 0, 0); 797 if (IS_ERR(child)) 798 return PTR_ERR(child); 799 } 800 801 if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { 802 child = add_child(SUB_CHIP_ID3, "twl4030_pwrbutton", NULL, 0, 803 true, irq_base + 8 + 0, 0); 804 if (IS_ERR(child)) 805 return PTR_ERR(child); 806 } 807 808 if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && 809 twl_class_is_4030()) { 810 child = add_child(SUB_CHIP_ID1, "twl4030-audio", 811 pdata->audio, sizeof(*pdata->audio), 812 false, 0, 0); 813 if (IS_ERR(child)) 814 return PTR_ERR(child); 815 } 816 817 /* twl4030 regulators */ 818 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) { 819 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, 820 features); 821 if (IS_ERR(child)) 822 return PTR_ERR(child); 823 824 child = add_regulator(TWL4030_REG_VIO, pdata->vio, 825 features); 826 if (IS_ERR(child)) 827 return PTR_ERR(child); 828 829 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, 830 features); 831 if (IS_ERR(child)) 832 return PTR_ERR(child); 833 834 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, 835 features); 836 if (IS_ERR(child)) 837 return PTR_ERR(child); 838 839 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, 840 features); 841 if (IS_ERR(child)) 842 return PTR_ERR(child); 843 844 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, 845 features); 846 if (IS_ERR(child)) 847 return PTR_ERR(child); 848 849 child = add_regulator((features & TWL4030_VAUX2) 850 ? TWL4030_REG_VAUX2_4030 851 : TWL4030_REG_VAUX2, 852 pdata->vaux2, features); 853 if (IS_ERR(child)) 854 return PTR_ERR(child); 855 856 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, 857 features); 858 if (IS_ERR(child)) 859 return PTR_ERR(child); 860 861 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, 862 features); 863 if (IS_ERR(child)) 864 return PTR_ERR(child); 865 866 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, 867 features); 868 if (IS_ERR(child)) 869 return PTR_ERR(child); 870 } 871 872 /* maybe add LDOs that are omitted on cost-reduced parts */ 873 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET) 874 && twl_class_is_4030()) { 875 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, 876 features); 877 if (IS_ERR(child)) 878 return PTR_ERR(child); 879 880 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, 881 features); 882 if (IS_ERR(child)) 883 return PTR_ERR(child); 884 885 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, 886 features); 887 if (IS_ERR(child)) 888 return PTR_ERR(child); 889 890 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, 891 features); 892 if (IS_ERR(child)) 893 return PTR_ERR(child); 894 895 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, 896 features); 897 if (IS_ERR(child)) 898 return PTR_ERR(child); 899 900 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, 901 features); 902 if (IS_ERR(child)) 903 return PTR_ERR(child); 904 } 905 906 /* twl6030 regulators */ 907 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && 908 !(features & TWL6025_SUBCLASS)) { 909 child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, 910 features); 911 if (IS_ERR(child)) 912 return PTR_ERR(child); 913 914 child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, 915 features); 916 if (IS_ERR(child)) 917 return PTR_ERR(child); 918 919 child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, 920 features); 921 if (IS_ERR(child)) 922 return PTR_ERR(child); 923 924 child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, 925 features); 926 if (IS_ERR(child)) 927 return PTR_ERR(child); 928 929 child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, 930 features); 931 if (IS_ERR(child)) 932 return PTR_ERR(child); 933 934 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, 935 features); 936 if (IS_ERR(child)) 937 return PTR_ERR(child); 938 939 child = add_regulator(TWL6030_REG_VPP, pdata->vpp, 940 features); 941 if (IS_ERR(child)) 942 return PTR_ERR(child); 943 944 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, 945 features); 946 if (IS_ERR(child)) 947 return PTR_ERR(child); 948 949 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, 950 features); 951 if (IS_ERR(child)) 952 return PTR_ERR(child); 953 954 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, 955 features); 956 if (IS_ERR(child)) 957 return PTR_ERR(child); 958 959 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, 960 features); 961 if (IS_ERR(child)) 962 return PTR_ERR(child); 963 964 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, 965 features); 966 if (IS_ERR(child)) 967 return PTR_ERR(child); 968 969 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, 970 features); 971 if (IS_ERR(child)) 972 return PTR_ERR(child); 973 974 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, 975 features); 976 if (IS_ERR(child)) 977 return PTR_ERR(child); 978 } 979 980 /* 6030 and 6025 share this regulator */ 981 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) { 982 child = add_regulator(TWL6030_REG_VANA, pdata->vana, 983 features); 984 if (IS_ERR(child)) 985 return PTR_ERR(child); 986 } 987 988 /* twl6025 regulators */ 989 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && 990 (features & TWL6025_SUBCLASS)) { 991 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, 992 features); 993 if (IS_ERR(child)) 994 return PTR_ERR(child); 995 996 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, 997 features); 998 if (IS_ERR(child)) 999 return PTR_ERR(child); 1000 1001 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, 1002 features); 1003 if (IS_ERR(child)) 1004 return PTR_ERR(child); 1005 1006 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, 1007 features); 1008 if (IS_ERR(child)) 1009 return PTR_ERR(child); 1010 1011 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, 1012 features); 1013 if (IS_ERR(child)) 1014 return PTR_ERR(child); 1015 1016 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, 1017 features); 1018 if (IS_ERR(child)) 1019 return PTR_ERR(child); 1020 1021 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, 1022 features); 1023 if (IS_ERR(child)) 1024 return PTR_ERR(child); 1025 1026 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, 1027 features); 1028 if (IS_ERR(child)) 1029 return PTR_ERR(child); 1030 1031 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, 1032 features); 1033 if (IS_ERR(child)) 1034 return PTR_ERR(child); 1035 1036 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, 1037 features); 1038 if (IS_ERR(child)) 1039 return PTR_ERR(child); 1040 1041 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, 1042 features); 1043 if (IS_ERR(child)) 1044 return PTR_ERR(child); 1045 1046 } 1047 1048 if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && 1049 !(features & (TPS_SUBSET | TWL5031))) { 1050 child = add_child(SUB_CHIP_ID3, "twl4030_bci", 1051 pdata->bci, sizeof(*pdata->bci), false, 1052 /* irq0 = CHG_PRES, irq1 = BCI */ 1053 irq_base + BCI_PRES_INTR_OFFSET, 1054 irq_base + BCI_INTR_OFFSET); 1055 if (IS_ERR(child)) 1056 return PTR_ERR(child); 1057 } 1058 1059 return 0; 1060 } 1061 1062 /*----------------------------------------------------------------------*/ 1063 1064 /* 1065 * These three functions initialize the on-chip clock framework, 1066 * letting it generate the right frequencies for USB, MADC, and 1067 * other purposes. 1068 */ 1069 static inline int __init protect_pm_master(void) 1070 { 1071 int e = 0; 1072 1073 e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, 1074 TWL4030_PM_MASTER_PROTECT_KEY); 1075 return e; 1076 } 1077 1078 static inline int __init unprotect_pm_master(void) 1079 { 1080 int e = 0; 1081 1082 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, 1083 TWL4030_PM_MASTER_PROTECT_KEY); 1084 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, 1085 TWL4030_PM_MASTER_PROTECT_KEY); 1086 1087 return e; 1088 } 1089 1090 static void clocks_init(struct device *dev, 1091 struct twl4030_clock_init_data *clock) 1092 { 1093 int e = 0; 1094 struct clk *osc; 1095 u32 rate; 1096 u8 ctrl = HFCLK_FREQ_26_MHZ; 1097 1098 osc = clk_get(dev, "fck"); 1099 if (IS_ERR(osc)) { 1100 printk(KERN_WARNING "Skipping twl internal clock init and " 1101 "using bootloader value (unknown osc rate)\n"); 1102 return; 1103 } 1104 1105 rate = clk_get_rate(osc); 1106 clk_put(osc); 1107 1108 switch (rate) { 1109 case 19200000: 1110 ctrl = HFCLK_FREQ_19p2_MHZ; 1111 break; 1112 case 26000000: 1113 ctrl = HFCLK_FREQ_26_MHZ; 1114 break; 1115 case 38400000: 1116 ctrl = HFCLK_FREQ_38p4_MHZ; 1117 break; 1118 } 1119 1120 ctrl |= HIGH_PERF_SQ; 1121 if (clock && clock->ck32k_lowpwr_enable) 1122 ctrl |= CK32K_LOWPWR_EN; 1123 1124 e |= unprotect_pm_master(); 1125 /* effect->MADC+USB ck en */ 1126 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 1127 e |= protect_pm_master(); 1128 1129 if (e < 0) 1130 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 1131 } 1132 1133 /*----------------------------------------------------------------------*/ 1134 1135 1136 static int twl_remove(struct i2c_client *client) 1137 { 1138 unsigned i, num_slaves; 1139 int status; 1140 1141 if (twl_class_is_4030()) { 1142 status = twl4030_exit_irq(); 1143 num_slaves = TWL_NUM_SLAVES; 1144 } else { 1145 status = twl6030_exit_irq(); 1146 num_slaves = TWL_NUM_SLAVES - 1; 1147 } 1148 1149 if (status < 0) 1150 return status; 1151 1152 for (i = 0; i < num_slaves; i++) { 1153 struct twl_client *twl = &twl_modules[i]; 1154 1155 if (twl->client && twl->client != client) 1156 i2c_unregister_device(twl->client); 1157 twl_modules[i].client = NULL; 1158 } 1159 inuse = false; 1160 return 0; 1161 } 1162 1163 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ 1164 static int 1165 twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1166 { 1167 struct twl4030_platform_data *pdata = client->dev.platform_data; 1168 struct device_node *node = client->dev.of_node; 1169 struct platform_device *pdev; 1170 struct regmap_config *twl_regmap_config; 1171 int irq_base = 0; 1172 int status; 1173 unsigned i, num_slaves; 1174 1175 pdev = platform_device_alloc(DRIVER_NAME, -1); 1176 if (!pdev) { 1177 dev_err(&client->dev, "can't alloc pdev\n"); 1178 return -ENOMEM; 1179 } 1180 1181 status = platform_device_add(pdev); 1182 if (status) { 1183 platform_device_put(pdev); 1184 return status; 1185 } 1186 1187 if (node && !pdata) { 1188 /* 1189 * XXX: Temporary pdata until the information is correctly 1190 * retrieved by every TWL modules from DT. 1191 */ 1192 pdata = devm_kzalloc(&client->dev, 1193 sizeof(struct twl4030_platform_data), 1194 GFP_KERNEL); 1195 if (!pdata) { 1196 status = -ENOMEM; 1197 goto free; 1198 } 1199 } 1200 1201 if (!pdata) { 1202 dev_dbg(&client->dev, "no platform data?\n"); 1203 status = -EINVAL; 1204 goto free; 1205 } 1206 1207 platform_set_drvdata(pdev, pdata); 1208 1209 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1210 dev_dbg(&client->dev, "can't talk I2C?\n"); 1211 status = -EIO; 1212 goto free; 1213 } 1214 1215 if (inuse) { 1216 dev_dbg(&client->dev, "driver is already in use\n"); 1217 status = -EBUSY; 1218 goto free; 1219 } 1220 1221 if ((id->driver_data) & TWL6030_CLASS) { 1222 twl_id = TWL6030_CLASS_ID; 1223 twl_map = &twl6030_map[0]; 1224 /* The charger base address is different in twl6025 */ 1225 if ((id->driver_data) & TWL6025_SUBCLASS) 1226 twl_map[TWL_MODULE_MAIN_CHARGE].base = 1227 TWL6025_BASEADD_CHARGER; 1228 twl_regmap_config = twl6030_regmap_config; 1229 num_slaves = TWL_NUM_SLAVES - 1; 1230 } else { 1231 twl_id = TWL4030_CLASS_ID; 1232 twl_map = &twl4030_map[0]; 1233 twl_regmap_config = twl4030_regmap_config; 1234 num_slaves = TWL_NUM_SLAVES; 1235 } 1236 1237 for (i = 0; i < num_slaves; i++) { 1238 struct twl_client *twl = &twl_modules[i]; 1239 1240 if (i == 0) { 1241 twl->client = client; 1242 } else { 1243 twl->client = i2c_new_dummy(client->adapter, 1244 client->addr + i); 1245 if (!twl->client) { 1246 dev_err(&client->dev, 1247 "can't attach client %d\n", i); 1248 status = -ENOMEM; 1249 goto fail; 1250 } 1251 } 1252 1253 twl->regmap = devm_regmap_init_i2c(twl->client, 1254 &twl_regmap_config[i]); 1255 if (IS_ERR(twl->regmap)) { 1256 status = PTR_ERR(twl->regmap); 1257 dev_err(&client->dev, 1258 "Failed to allocate regmap %d, err: %d\n", i, 1259 status); 1260 goto fail; 1261 } 1262 } 1263 1264 inuse = true; 1265 1266 /* setup clock framework */ 1267 clocks_init(&pdev->dev, pdata->clock); 1268 1269 /* read TWL IDCODE Register */ 1270 if (twl_id == TWL4030_CLASS_ID) { 1271 status = twl_read_idcode_register(); 1272 WARN(status < 0, "Error: reading twl_idcode register value\n"); 1273 } 1274 1275 /* load power event scripts */ 1276 if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) 1277 twl4030_power_init(pdata->power); 1278 1279 /* Maybe init the T2 Interrupt subsystem */ 1280 if (client->irq) { 1281 if (twl_class_is_4030()) { 1282 twl4030_init_chip_irq(id->name); 1283 irq_base = twl4030_init_irq(&client->dev, client->irq); 1284 } else { 1285 irq_base = twl6030_init_irq(&client->dev, client->irq); 1286 } 1287 1288 if (irq_base < 0) { 1289 status = irq_base; 1290 goto fail; 1291 } 1292 } 1293 1294 /* 1295 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1296 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1297 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1298 */ 1299 if (twl_class_is_4030()) { 1300 u8 temp; 1301 1302 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1303 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1304 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1305 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1306 } 1307 1308 status = -ENODEV; 1309 if (node) 1310 status = of_platform_populate(node, NULL, NULL, &client->dev); 1311 if (status) 1312 status = add_children(pdata, irq_base, id->driver_data); 1313 1314 fail: 1315 if (status < 0) 1316 twl_remove(client); 1317 free: 1318 if (status < 0) 1319 platform_device_unregister(pdev); 1320 1321 return status; 1322 } 1323 1324 static const struct i2c_device_id twl_ids[] = { 1325 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1326 { "twl5030", 0 }, /* T2 updated */ 1327 { "twl5031", TWL5031 }, /* TWL5030 updated */ 1328 { "tps65950", 0 }, /* catalog version of twl5030 */ 1329 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1330 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 1331 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED 1332 and vibrator. Charger in USB module*/ 1333 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1334 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ 1335 { /* end of list */ }, 1336 }; 1337 MODULE_DEVICE_TABLE(i2c, twl_ids); 1338 1339 /* One Client Driver , 4 Clients */ 1340 static struct i2c_driver twl_driver = { 1341 .driver.name = DRIVER_NAME, 1342 .id_table = twl_ids, 1343 .probe = twl_probe, 1344 .remove = twl_remove, 1345 }; 1346 1347 static int __init twl_init(void) 1348 { 1349 return i2c_add_driver(&twl_driver); 1350 } 1351 subsys_initcall(twl_init); 1352 1353 static void __exit twl_exit(void) 1354 { 1355 i2c_del_driver(&twl_driver); 1356 } 1357 module_exit(twl_exit); 1358 1359 MODULE_AUTHOR("Texas Instruments, Inc."); 1360 MODULE_DESCRIPTION("I2C Core interface for TWL"); 1361 MODULE_LICENSE("GPL"); 1362