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 /* Base Address defns for twl4030_map[] */ 70 71 /* subchip/slave 0 - USB ID */ 72 #define TWL4030_BASEADD_USB 0x0000 73 74 /* subchip/slave 1 - AUD ID */ 75 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 76 #define TWL4030_BASEADD_GPIO 0x0098 77 #define TWL4030_BASEADD_INTBR 0x0085 78 #define TWL4030_BASEADD_PIH 0x0080 79 #define TWL4030_BASEADD_TEST 0x004C 80 81 /* subchip/slave 2 - AUX ID */ 82 #define TWL4030_BASEADD_INTERRUPTS 0x00B9 83 #define TWL4030_BASEADD_LED 0x00EE 84 #define TWL4030_BASEADD_MADC 0x0000 85 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 86 #define TWL4030_BASEADD_PRECHARGE 0x00AA 87 #define TWL4030_BASEADD_PWM 0x00F8 88 #define TWL4030_BASEADD_KEYPAD 0x00D2 89 90 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ 91 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's 92 one */ 93 94 /* subchip/slave 3 - POWER ID */ 95 #define TWL4030_BASEADD_BACKUP 0x0014 96 #define TWL4030_BASEADD_INT 0x002E 97 #define TWL4030_BASEADD_PM_MASTER 0x0036 98 #define TWL4030_BASEADD_PM_RECEIVER 0x005B 99 #define TWL4030_BASEADD_RTC 0x001C 100 #define TWL4030_BASEADD_SECURED_REG 0x0000 101 102 /* Triton Core internal information (END) */ 103 104 105 /* subchip/slave 0 0x48 - POWER */ 106 #define TWL6030_BASEADD_RTC 0x0000 107 #define TWL6030_BASEADD_SECURED_REG 0x0017 108 #define TWL6030_BASEADD_PM_MASTER 0x001F 109 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ 110 #define TWL6030_BASEADD_PM_MISC 0x00E2 111 #define TWL6030_BASEADD_PM_PUPD 0x00F0 112 113 /* subchip/slave 1 0x49 - FEATURE */ 114 #define TWL6030_BASEADD_USB 0x0000 115 #define TWL6030_BASEADD_GPADC_CTRL 0x002E 116 #define TWL6030_BASEADD_AUX 0x0090 117 #define TWL6030_BASEADD_PWM 0x00BA 118 #define TWL6030_BASEADD_GASGAUGE 0x00C0 119 #define TWL6030_BASEADD_PIH 0x00D0 120 #define TWL6030_BASEADD_CHARGER 0x00E0 121 #define TWL6025_BASEADD_CHARGER 0x00DA 122 #define TWL6030_BASEADD_LED 0x00F4 123 124 /* subchip/slave 2 0x4A - DFT */ 125 #define TWL6030_BASEADD_DIEID 0x00C0 126 127 /* subchip/slave 3 0x4B - AUDIO */ 128 #define TWL6030_BASEADD_AUDIO 0x0000 129 #define TWL6030_BASEADD_RSV 0x0000 130 #define TWL6030_BASEADD_ZERO 0x0000 131 132 /* Few power values */ 133 #define R_CFG_BOOT 0x05 134 135 /* some fields in R_CFG_BOOT */ 136 #define HFCLK_FREQ_19p2_MHZ (1 << 0) 137 #define HFCLK_FREQ_26_MHZ (2 << 0) 138 #define HFCLK_FREQ_38p4_MHZ (3 << 0) 139 #define HIGH_PERF_SQ (1 << 3) 140 #define CK32K_LOWPWR_EN (1 << 7) 141 142 /*----------------------------------------------------------------------*/ 143 144 /* Structure for each TWL4030/TWL6030 Slave */ 145 struct twl_client { 146 struct i2c_client *client; 147 struct regmap *regmap; 148 }; 149 150 /* mapping the module id to slave id and base address */ 151 struct twl_mapping { 152 unsigned char sid; /* Slave ID */ 153 unsigned char base; /* base address */ 154 }; 155 156 struct twl_private { 157 bool ready; /* The core driver is ready to be used */ 158 u32 twl_idcode; /* TWL IDCODE Register value */ 159 unsigned int twl_id; 160 161 struct twl_mapping *twl_map; 162 struct twl_client *twl_modules; 163 }; 164 165 static struct twl_private *twl_priv; 166 167 static struct twl_mapping twl4030_map[] = { 168 /* 169 * NOTE: don't change this table without updating the 170 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 171 * so they continue to match the order in this table. 172 */ 173 174 /* Common IPs */ 175 { 0, TWL4030_BASEADD_USB }, 176 { 1, TWL4030_BASEADD_PIH }, 177 { 2, TWL4030_BASEADD_MAIN_CHARGE }, 178 { 3, TWL4030_BASEADD_PM_MASTER }, 179 { 3, TWL4030_BASEADD_PM_RECEIVER }, 180 181 { 3, TWL4030_BASEADD_RTC }, 182 { 2, TWL4030_BASEADD_PWM }, 183 { 2, TWL4030_BASEADD_LED }, 184 { 3, TWL4030_BASEADD_SECURED_REG }, 185 186 /* TWL4030 specific IPs */ 187 { 1, TWL4030_BASEADD_AUDIO_VOICE }, 188 { 1, TWL4030_BASEADD_GPIO }, 189 { 1, TWL4030_BASEADD_INTBR }, 190 { 1, TWL4030_BASEADD_TEST }, 191 { 2, TWL4030_BASEADD_KEYPAD }, 192 193 { 2, TWL4030_BASEADD_MADC }, 194 { 2, TWL4030_BASEADD_INTERRUPTS }, 195 { 2, TWL4030_BASEADD_PRECHARGE }, 196 { 3, TWL4030_BASEADD_BACKUP }, 197 { 3, TWL4030_BASEADD_INT }, 198 199 { 2, TWL5031_BASEADD_ACCESSORY }, 200 { 2, TWL5031_BASEADD_INTERRUPTS }, 201 }; 202 203 static struct regmap_config twl4030_regmap_config[4] = { 204 { 205 /* Address 0x48 */ 206 .reg_bits = 8, 207 .val_bits = 8, 208 .max_register = 0xff, 209 }, 210 { 211 /* Address 0x49 */ 212 .reg_bits = 8, 213 .val_bits = 8, 214 .max_register = 0xff, 215 }, 216 { 217 /* Address 0x4a */ 218 .reg_bits = 8, 219 .val_bits = 8, 220 .max_register = 0xff, 221 }, 222 { 223 /* Address 0x4b */ 224 .reg_bits = 8, 225 .val_bits = 8, 226 .max_register = 0xff, 227 }, 228 }; 229 230 static struct twl_mapping twl6030_map[] = { 231 /* 232 * NOTE: don't change this table without updating the 233 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 234 * so they continue to match the order in this table. 235 */ 236 237 /* Common IPs */ 238 { 1, TWL6030_BASEADD_USB }, 239 { 1, TWL6030_BASEADD_PIH }, 240 { 1, TWL6030_BASEADD_CHARGER }, 241 { 0, TWL6030_BASEADD_PM_MASTER }, 242 { 0, TWL6030_BASEADD_PM_SLAVE_MISC }, 243 244 { 0, TWL6030_BASEADD_RTC }, 245 { 1, TWL6030_BASEADD_PWM }, 246 { 1, TWL6030_BASEADD_LED }, 247 { 0, TWL6030_BASEADD_SECURED_REG }, 248 249 /* TWL6030 specific IPs */ 250 { 0, TWL6030_BASEADD_ZERO }, 251 { 1, TWL6030_BASEADD_ZERO }, 252 { 2, TWL6030_BASEADD_ZERO }, 253 { 1, TWL6030_BASEADD_GPADC_CTRL }, 254 { 1, TWL6030_BASEADD_GASGAUGE }, 255 }; 256 257 static struct regmap_config twl6030_regmap_config[3] = { 258 { 259 /* Address 0x48 */ 260 .reg_bits = 8, 261 .val_bits = 8, 262 .max_register = 0xff, 263 }, 264 { 265 /* Address 0x49 */ 266 .reg_bits = 8, 267 .val_bits = 8, 268 .max_register = 0xff, 269 }, 270 { 271 /* Address 0x4a */ 272 .reg_bits = 8, 273 .val_bits = 8, 274 .max_register = 0xff, 275 }, 276 }; 277 278 /*----------------------------------------------------------------------*/ 279 280 static inline int twl_get_num_slaves(void) 281 { 282 if (twl_class_is_4030()) 283 return 4; /* TWL4030 class have four slave address */ 284 else 285 return 3; /* TWL6030 class have three slave address */ 286 } 287 288 static inline int twl_get_last_module(void) 289 { 290 if (twl_class_is_4030()) 291 return TWL4030_MODULE_LAST; 292 else 293 return TWL6030_MODULE_LAST; 294 } 295 296 /* Exported Functions */ 297 298 unsigned int twl_rev(void) 299 { 300 return twl_priv ? twl_priv->twl_id : 0; 301 } 302 EXPORT_SYMBOL(twl_rev); 303 304 /** 305 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 306 * @mod_no: module number 307 * @value: an array of num_bytes+1 containing data to write 308 * @reg: register address (just offset will do) 309 * @num_bytes: number of bytes to transfer 310 * 311 * Returns the result of operation - 0 is success 312 */ 313 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 314 { 315 int ret; 316 int sid; 317 struct twl_client *twl; 318 319 if (unlikely(mod_no >= twl_get_last_module())) { 320 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 321 return -EPERM; 322 } 323 if (unlikely(!twl_priv->ready)) { 324 pr_err("%s: not initialized\n", DRIVER_NAME); 325 return -EPERM; 326 } 327 328 sid = twl_priv->twl_map[mod_no].sid; 329 twl = &twl_priv->twl_modules[sid]; 330 331 ret = regmap_bulk_write(twl->regmap, 332 twl_priv->twl_map[mod_no].base + reg, value, 333 num_bytes); 334 335 if (ret) 336 pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", 337 DRIVER_NAME, mod_no, reg, num_bytes); 338 339 return ret; 340 } 341 EXPORT_SYMBOL(twl_i2c_write); 342 343 /** 344 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 345 * @mod_no: module number 346 * @value: an array of num_bytes containing data to be read 347 * @reg: register address (just offset will do) 348 * @num_bytes: number of bytes to transfer 349 * 350 * Returns result of operation - num_bytes is success else failure. 351 */ 352 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 353 { 354 int ret; 355 int sid; 356 struct twl_client *twl; 357 358 if (unlikely(mod_no >= twl_get_last_module())) { 359 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 360 return -EPERM; 361 } 362 if (unlikely(!twl_priv->ready)) { 363 pr_err("%s: not initialized\n", DRIVER_NAME); 364 return -EPERM; 365 } 366 367 sid = twl_priv->twl_map[mod_no].sid; 368 twl = &twl_priv->twl_modules[sid]; 369 370 ret = regmap_bulk_read(twl->regmap, 371 twl_priv->twl_map[mod_no].base + reg, value, 372 num_bytes); 373 374 if (ret) 375 pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n", 376 DRIVER_NAME, mod_no, reg, num_bytes); 377 378 return ret; 379 } 380 EXPORT_SYMBOL(twl_i2c_read); 381 382 /** 383 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 384 * @mod_no: module number 385 * @value: the value to be written 8 bit 386 * @reg: register address (just offset will do) 387 * 388 * Returns result of operation - 0 is success 389 */ 390 int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 391 { 392 return twl_i2c_write(mod_no, &value, reg, 1); 393 } 394 EXPORT_SYMBOL(twl_i2c_write_u8); 395 396 /** 397 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 398 * @mod_no: module number 399 * @value: the value read 8 bit 400 * @reg: register address (just offset will do) 401 * 402 * Returns result of operation - 0 is success 403 */ 404 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 405 { 406 return twl_i2c_read(mod_no, value, reg, 1); 407 } 408 EXPORT_SYMBOL(twl_i2c_read_u8); 409 410 /*----------------------------------------------------------------------*/ 411 412 /** 413 * twl_read_idcode_register - API to read the IDCODE register. 414 * 415 * Unlocks the IDCODE register and read the 32 bit value. 416 */ 417 static int twl_read_idcode_register(void) 418 { 419 int err; 420 421 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, 422 REG_UNLOCK_TEST_REG); 423 if (err) { 424 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); 425 goto fail; 426 } 427 428 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_priv->twl_idcode), 429 REG_IDCODE_7_0, 4); 430 if (err) { 431 pr_err("TWL4030: unable to read IDCODE -%d\n", err); 432 goto fail; 433 } 434 435 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); 436 if (err) 437 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); 438 fail: 439 return err; 440 } 441 442 /** 443 * twl_get_type - API to get TWL Si type. 444 * 445 * Api to get the TWL Si type from IDCODE value. 446 */ 447 int twl_get_type(void) 448 { 449 return TWL_SIL_TYPE(twl_priv->twl_idcode); 450 } 451 EXPORT_SYMBOL_GPL(twl_get_type); 452 453 /** 454 * twl_get_version - API to get TWL Si version. 455 * 456 * Api to get the TWL Si version from IDCODE value. 457 */ 458 int twl_get_version(void) 459 { 460 return TWL_SIL_REV(twl_priv->twl_idcode); 461 } 462 EXPORT_SYMBOL_GPL(twl_get_version); 463 464 /** 465 * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. 466 * 467 * Api to get the TWL HFCLK rate based on BOOT_CFG register. 468 */ 469 int twl_get_hfclk_rate(void) 470 { 471 u8 ctrl; 472 int rate; 473 474 twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); 475 476 switch (ctrl & 0x3) { 477 case HFCLK_FREQ_19p2_MHZ: 478 rate = 19200000; 479 break; 480 case HFCLK_FREQ_26_MHZ: 481 rate = 26000000; 482 break; 483 case HFCLK_FREQ_38p4_MHZ: 484 rate = 38400000; 485 break; 486 default: 487 pr_err("TWL4030: HFCLK is not configured\n"); 488 rate = -EINVAL; 489 break; 490 } 491 492 return rate; 493 } 494 EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); 495 496 static struct device * 497 add_numbered_child(unsigned mod_no, const char *name, int num, 498 void *pdata, unsigned pdata_len, 499 bool can_wakeup, int irq0, int irq1) 500 { 501 struct platform_device *pdev; 502 struct twl_client *twl; 503 int status, sid; 504 505 if (unlikely(mod_no >= twl_get_last_module())) { 506 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 507 return ERR_PTR(-EPERM); 508 } 509 sid = twl_priv->twl_map[mod_no].sid; 510 twl = &twl_priv->twl_modules[sid]; 511 512 pdev = platform_device_alloc(name, num); 513 if (!pdev) { 514 dev_dbg(&twl->client->dev, "can't alloc dev\n"); 515 status = -ENOMEM; 516 goto err; 517 } 518 519 pdev->dev.parent = &twl->client->dev; 520 521 if (pdata) { 522 status = platform_device_add_data(pdev, pdata, pdata_len); 523 if (status < 0) { 524 dev_dbg(&pdev->dev, "can't add platform_data\n"); 525 goto err; 526 } 527 } 528 529 if (irq0) { 530 struct resource r[2] = { 531 { .start = irq0, .flags = IORESOURCE_IRQ, }, 532 { .start = irq1, .flags = IORESOURCE_IRQ, }, 533 }; 534 535 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 536 if (status < 0) { 537 dev_dbg(&pdev->dev, "can't add irqs\n"); 538 goto err; 539 } 540 } 541 542 status = platform_device_add(pdev); 543 if (status == 0) 544 device_init_wakeup(&pdev->dev, can_wakeup); 545 546 err: 547 if (status < 0) { 548 platform_device_put(pdev); 549 dev_err(&twl->client->dev, "can't add %s dev\n", name); 550 return ERR_PTR(status); 551 } 552 return &pdev->dev; 553 } 554 555 static inline struct device *add_child(unsigned mod_no, const char *name, 556 void *pdata, unsigned pdata_len, 557 bool can_wakeup, int irq0, int irq1) 558 { 559 return add_numbered_child(mod_no, name, -1, pdata, pdata_len, 560 can_wakeup, irq0, irq1); 561 } 562 563 static struct device * 564 add_regulator_linked(int num, struct regulator_init_data *pdata, 565 struct regulator_consumer_supply *consumers, 566 unsigned num_consumers, unsigned long features) 567 { 568 struct twl_regulator_driver_data drv_data; 569 570 /* regulator framework demands init_data ... */ 571 if (!pdata) 572 return NULL; 573 574 if (consumers) { 575 pdata->consumer_supplies = consumers; 576 pdata->num_consumer_supplies = num_consumers; 577 } 578 579 if (pdata->driver_data) { 580 /* If we have existing drv_data, just add the flags */ 581 struct twl_regulator_driver_data *tmp; 582 tmp = pdata->driver_data; 583 tmp->features |= features; 584 } else { 585 /* add new driver data struct, used only during init */ 586 drv_data.features = features; 587 drv_data.set_voltage = NULL; 588 drv_data.get_voltage = NULL; 589 drv_data.data = NULL; 590 pdata->driver_data = &drv_data; 591 } 592 593 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 594 return add_numbered_child(TWL_MODULE_PM_MASTER, "twl_reg", num, 595 pdata, sizeof(*pdata), false, 0, 0); 596 } 597 598 static struct device * 599 add_regulator(int num, struct regulator_init_data *pdata, 600 unsigned long features) 601 { 602 return add_regulator_linked(num, pdata, NULL, 0, features); 603 } 604 605 /* 606 * NOTE: We know the first 8 IRQs after pdata->base_irq are 607 * for the PIH, and the next are for the PWR_INT SIH, since 608 * that's how twl_init_irq() sets things up. 609 */ 610 611 static int 612 add_children(struct twl4030_platform_data *pdata, unsigned irq_base, 613 unsigned long features) 614 { 615 struct device *child; 616 617 if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) { 618 child = add_child(TWL4030_MODULE_GPIO, "twl4030_gpio", 619 pdata->gpio, sizeof(*pdata->gpio), 620 false, irq_base + GPIO_INTR_OFFSET, 0); 621 if (IS_ERR(child)) 622 return PTR_ERR(child); 623 } 624 625 if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) { 626 child = add_child(TWL4030_MODULE_KEYPAD, "twl4030_keypad", 627 pdata->keypad, sizeof(*pdata->keypad), 628 true, irq_base + KEYPAD_INTR_OFFSET, 0); 629 if (IS_ERR(child)) 630 return PTR_ERR(child); 631 } 632 633 if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && 634 twl_class_is_4030()) { 635 child = add_child(TWL4030_MODULE_MADC, "twl4030_madc", 636 pdata->madc, sizeof(*pdata->madc), 637 true, irq_base + MADC_INTR_OFFSET, 0); 638 if (IS_ERR(child)) 639 return PTR_ERR(child); 640 } 641 642 if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) { 643 /* 644 * REVISIT platform_data here currently might expose the 645 * "msecure" line ... but for now we just expect board 646 * setup to tell the chip "it's always ok to SET_TIME". 647 * Eventually, Linux might become more aware of such 648 * HW security concerns, and "least privilege". 649 */ 650 child = add_child(TWL_MODULE_RTC, "twl_rtc", NULL, 0, 651 true, irq_base + RTC_INTR_OFFSET, 0); 652 if (IS_ERR(child)) 653 return PTR_ERR(child); 654 } 655 656 if (IS_ENABLED(CONFIG_PWM_TWL)) { 657 child = add_child(TWL_MODULE_PWM, "twl-pwm", NULL, 0, 658 false, 0, 0); 659 if (IS_ERR(child)) 660 return PTR_ERR(child); 661 } 662 663 if (IS_ENABLED(CONFIG_PWM_TWL_LED)) { 664 child = add_child(TWL_MODULE_LED, "twl-pwmled", NULL, 0, 665 false, 0, 0); 666 if (IS_ERR(child)) 667 return PTR_ERR(child); 668 } 669 670 if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb && 671 twl_class_is_4030()) { 672 673 static struct regulator_consumer_supply usb1v5 = { 674 .supply = "usb1v5", 675 }; 676 static struct regulator_consumer_supply usb1v8 = { 677 .supply = "usb1v8", 678 }; 679 static struct regulator_consumer_supply usb3v1[] = { 680 { .supply = "usb3v1" }, 681 { .supply = "bci3v1" }, 682 }; 683 684 /* First add the regulators so that they can be used by transceiver */ 685 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { 686 /* this is a template that gets copied */ 687 struct regulator_init_data usb_fixed = { 688 .constraints.valid_modes_mask = 689 REGULATOR_MODE_NORMAL 690 | REGULATOR_MODE_STANDBY, 691 .constraints.valid_ops_mask = 692 REGULATOR_CHANGE_MODE 693 | REGULATOR_CHANGE_STATUS, 694 }; 695 696 child = add_regulator_linked(TWL4030_REG_VUSB1V5, 697 &usb_fixed, &usb1v5, 1, 698 features); 699 if (IS_ERR(child)) 700 return PTR_ERR(child); 701 702 child = add_regulator_linked(TWL4030_REG_VUSB1V8, 703 &usb_fixed, &usb1v8, 1, 704 features); 705 if (IS_ERR(child)) 706 return PTR_ERR(child); 707 708 child = add_regulator_linked(TWL4030_REG_VUSB3V1, 709 &usb_fixed, usb3v1, 2, 710 features); 711 if (IS_ERR(child)) 712 return PTR_ERR(child); 713 714 } 715 716 child = add_child(TWL_MODULE_USB, "twl4030_usb", 717 pdata->usb, sizeof(*pdata->usb), true, 718 /* irq0 = USB_PRES, irq1 = USB */ 719 irq_base + USB_PRES_INTR_OFFSET, 720 irq_base + USB_INTR_OFFSET); 721 722 if (IS_ERR(child)) 723 return PTR_ERR(child); 724 725 /* we need to connect regulators to this transceiver */ 726 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) { 727 usb1v5.dev_name = dev_name(child); 728 usb1v8.dev_name = dev_name(child); 729 usb3v1[0].dev_name = dev_name(child); 730 } 731 } 732 if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && 733 twl_class_is_6030()) { 734 735 static struct regulator_consumer_supply usb3v3; 736 int regulator; 737 738 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { 739 /* this is a template that gets copied */ 740 struct regulator_init_data usb_fixed = { 741 .constraints.valid_modes_mask = 742 REGULATOR_MODE_NORMAL 743 | REGULATOR_MODE_STANDBY, 744 .constraints.valid_ops_mask = 745 REGULATOR_CHANGE_MODE 746 | REGULATOR_CHANGE_STATUS, 747 }; 748 749 if (features & TWL6025_SUBCLASS) { 750 usb3v3.supply = "ldousb"; 751 regulator = TWL6025_REG_LDOUSB; 752 } else { 753 usb3v3.supply = "vusb"; 754 regulator = TWL6030_REG_VUSB; 755 } 756 child = add_regulator_linked(regulator, &usb_fixed, 757 &usb3v3, 1, 758 features); 759 if (IS_ERR(child)) 760 return PTR_ERR(child); 761 } 762 763 pdata->usb->features = features; 764 765 child = add_child(TWL_MODULE_USB, "twl6030_usb", 766 pdata->usb, sizeof(*pdata->usb), true, 767 /* irq1 = VBUS_PRES, irq0 = USB ID */ 768 irq_base + USBOTG_INTR_OFFSET, 769 irq_base + USB_PRES_INTR_OFFSET); 770 771 if (IS_ERR(child)) 772 return PTR_ERR(child); 773 /* we need to connect regulators to this transceiver */ 774 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) 775 usb3v3.dev_name = dev_name(child); 776 } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && 777 twl_class_is_6030()) { 778 if (features & TWL6025_SUBCLASS) 779 child = add_regulator(TWL6025_REG_LDOUSB, 780 pdata->ldousb, features); 781 else 782 child = add_regulator(TWL6030_REG_VUSB, 783 pdata->vusb, features); 784 785 if (IS_ERR(child)) 786 return PTR_ERR(child); 787 } 788 789 if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { 790 child = add_child(TWL_MODULE_PM_RECEIVER, "twl4030_wdt", NULL, 791 0, false, 0, 0); 792 if (IS_ERR(child)) 793 return PTR_ERR(child); 794 } 795 796 if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { 797 child = add_child(TWL_MODULE_PM_MASTER, "twl4030_pwrbutton", 798 NULL, 0, true, irq_base + 8 + 0, 0); 799 if (IS_ERR(child)) 800 return PTR_ERR(child); 801 } 802 803 if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && 804 twl_class_is_4030()) { 805 child = add_child(TWL4030_MODULE_AUDIO_VOICE, "twl4030-audio", 806 pdata->audio, sizeof(*pdata->audio), 807 false, 0, 0); 808 if (IS_ERR(child)) 809 return PTR_ERR(child); 810 } 811 812 /* twl4030 regulators */ 813 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) { 814 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, 815 features); 816 if (IS_ERR(child)) 817 return PTR_ERR(child); 818 819 child = add_regulator(TWL4030_REG_VIO, pdata->vio, 820 features); 821 if (IS_ERR(child)) 822 return PTR_ERR(child); 823 824 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, 825 features); 826 if (IS_ERR(child)) 827 return PTR_ERR(child); 828 829 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, 830 features); 831 if (IS_ERR(child)) 832 return PTR_ERR(child); 833 834 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, 835 features); 836 if (IS_ERR(child)) 837 return PTR_ERR(child); 838 839 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, 840 features); 841 if (IS_ERR(child)) 842 return PTR_ERR(child); 843 844 child = add_regulator((features & TWL4030_VAUX2) 845 ? TWL4030_REG_VAUX2_4030 846 : TWL4030_REG_VAUX2, 847 pdata->vaux2, features); 848 if (IS_ERR(child)) 849 return PTR_ERR(child); 850 851 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, 852 features); 853 if (IS_ERR(child)) 854 return PTR_ERR(child); 855 856 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, 857 features); 858 if (IS_ERR(child)) 859 return PTR_ERR(child); 860 861 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, 862 features); 863 if (IS_ERR(child)) 864 return PTR_ERR(child); 865 } 866 867 /* maybe add LDOs that are omitted on cost-reduced parts */ 868 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET) 869 && twl_class_is_4030()) { 870 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, 871 features); 872 if (IS_ERR(child)) 873 return PTR_ERR(child); 874 875 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, 876 features); 877 if (IS_ERR(child)) 878 return PTR_ERR(child); 879 880 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, 881 features); 882 if (IS_ERR(child)) 883 return PTR_ERR(child); 884 885 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, 886 features); 887 if (IS_ERR(child)) 888 return PTR_ERR(child); 889 890 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, 891 features); 892 if (IS_ERR(child)) 893 return PTR_ERR(child); 894 895 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, 896 features); 897 if (IS_ERR(child)) 898 return PTR_ERR(child); 899 } 900 901 /* twl6030 regulators */ 902 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && 903 !(features & TWL6025_SUBCLASS)) { 904 child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, 905 features); 906 if (IS_ERR(child)) 907 return PTR_ERR(child); 908 909 child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, 910 features); 911 if (IS_ERR(child)) 912 return PTR_ERR(child); 913 914 child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, 915 features); 916 if (IS_ERR(child)) 917 return PTR_ERR(child); 918 919 child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, 920 features); 921 if (IS_ERR(child)) 922 return PTR_ERR(child); 923 924 child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, 925 features); 926 if (IS_ERR(child)) 927 return PTR_ERR(child); 928 929 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 (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && 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 (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && 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 (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && 1044 !(features & (TPS_SUBSET | TWL5031))) { 1045 child = add_child(TWL_MODULE_MAIN_CHARGE, "twl4030_bci", 1046 pdata->bci, sizeof(*pdata->bci), false, 1047 /* irq0 = CHG_PRES, irq1 = BCI */ 1048 irq_base + BCI_PRES_INTR_OFFSET, 1049 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(TWL_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(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, 1078 TWL4030_PM_MASTER_PROTECT_KEY); 1079 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, 1080 TWL4030_PM_MASTER_PROTECT_KEY); 1081 1082 return e; 1083 } 1084 1085 static void clocks_init(struct device *dev, 1086 struct twl4030_clock_init_data *clock) 1087 { 1088 int e = 0; 1089 struct clk *osc; 1090 u32 rate; 1091 u8 ctrl = HFCLK_FREQ_26_MHZ; 1092 1093 osc = clk_get(dev, "fck"); 1094 if (IS_ERR(osc)) { 1095 printk(KERN_WARNING "Skipping twl internal clock init and " 1096 "using bootloader value (unknown osc rate)\n"); 1097 return; 1098 } 1099 1100 rate = clk_get_rate(osc); 1101 clk_put(osc); 1102 1103 switch (rate) { 1104 case 19200000: 1105 ctrl = HFCLK_FREQ_19p2_MHZ; 1106 break; 1107 case 26000000: 1108 ctrl = HFCLK_FREQ_26_MHZ; 1109 break; 1110 case 38400000: 1111 ctrl = HFCLK_FREQ_38p4_MHZ; 1112 break; 1113 } 1114 1115 ctrl |= HIGH_PERF_SQ; 1116 if (clock && clock->ck32k_lowpwr_enable) 1117 ctrl |= CK32K_LOWPWR_EN; 1118 1119 e |= unprotect_pm_master(); 1120 /* effect->MADC+USB ck en */ 1121 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 1122 e |= protect_pm_master(); 1123 1124 if (e < 0) 1125 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 1126 } 1127 1128 /*----------------------------------------------------------------------*/ 1129 1130 1131 static int twl_remove(struct i2c_client *client) 1132 { 1133 unsigned i, num_slaves; 1134 int status; 1135 1136 if (twl_class_is_4030()) 1137 status = twl4030_exit_irq(); 1138 else 1139 status = twl6030_exit_irq(); 1140 1141 if (status < 0) 1142 return status; 1143 1144 num_slaves = twl_get_num_slaves(); 1145 for (i = 0; i < num_slaves; i++) { 1146 struct twl_client *twl = &twl_priv->twl_modules[i]; 1147 1148 if (twl->client && twl->client != client) 1149 i2c_unregister_device(twl->client); 1150 twl->client = NULL; 1151 } 1152 twl_priv->ready = false; 1153 return 0; 1154 } 1155 1156 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ 1157 static int 1158 twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1159 { 1160 struct twl4030_platform_data *pdata = client->dev.platform_data; 1161 struct device_node *node = client->dev.of_node; 1162 struct platform_device *pdev; 1163 struct regmap_config *twl_regmap_config; 1164 int irq_base = 0; 1165 int status; 1166 unsigned i, num_slaves; 1167 1168 if (!node && !pdata) { 1169 dev_err(&client->dev, "no platform data\n"); 1170 return -EINVAL; 1171 } 1172 1173 if (twl_priv) { 1174 dev_dbg(&client->dev, "only one instance of %s allowed\n", 1175 DRIVER_NAME); 1176 return -EBUSY; 1177 } 1178 1179 pdev = platform_device_alloc(DRIVER_NAME, -1); 1180 if (!pdev) { 1181 dev_err(&client->dev, "can't alloc pdev\n"); 1182 return -ENOMEM; 1183 } 1184 1185 status = platform_device_add(pdev); 1186 if (status) { 1187 platform_device_put(pdev); 1188 return status; 1189 } 1190 1191 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1192 dev_dbg(&client->dev, "can't talk I2C?\n"); 1193 status = -EIO; 1194 goto free; 1195 } 1196 1197 twl_priv = devm_kzalloc(&client->dev, sizeof(struct twl_private), 1198 GFP_KERNEL); 1199 if (!twl_priv) { 1200 status = -ENOMEM; 1201 goto free; 1202 } 1203 1204 if ((id->driver_data) & TWL6030_CLASS) { 1205 twl_priv->twl_id = TWL6030_CLASS_ID; 1206 twl_priv->twl_map = &twl6030_map[0]; 1207 /* The charger base address is different in twl6025 */ 1208 if ((id->driver_data) & TWL6025_SUBCLASS) 1209 twl_priv->twl_map[TWL_MODULE_MAIN_CHARGE].base = 1210 TWL6025_BASEADD_CHARGER; 1211 twl_regmap_config = twl6030_regmap_config; 1212 } else { 1213 twl_priv->twl_id = TWL4030_CLASS_ID; 1214 twl_priv->twl_map = &twl4030_map[0]; 1215 twl_regmap_config = twl4030_regmap_config; 1216 } 1217 1218 num_slaves = twl_get_num_slaves(); 1219 twl_priv->twl_modules = devm_kzalloc(&client->dev, 1220 sizeof(struct twl_client) * num_slaves, 1221 GFP_KERNEL); 1222 if (!twl_priv->twl_modules) { 1223 status = -ENOMEM; 1224 goto free; 1225 } 1226 1227 for (i = 0; i < num_slaves; i++) { 1228 struct twl_client *twl = &twl_priv->twl_modules[i]; 1229 1230 if (i == 0) { 1231 twl->client = client; 1232 } else { 1233 twl->client = i2c_new_dummy(client->adapter, 1234 client->addr + i); 1235 if (!twl->client) { 1236 dev_err(&client->dev, 1237 "can't attach client %d\n", i); 1238 status = -ENOMEM; 1239 goto fail; 1240 } 1241 } 1242 1243 twl->regmap = devm_regmap_init_i2c(twl->client, 1244 &twl_regmap_config[i]); 1245 if (IS_ERR(twl->regmap)) { 1246 status = PTR_ERR(twl->regmap); 1247 dev_err(&client->dev, 1248 "Failed to allocate regmap %d, err: %d\n", i, 1249 status); 1250 goto fail; 1251 } 1252 } 1253 1254 twl_priv->ready = true; 1255 1256 /* setup clock framework */ 1257 clocks_init(&pdev->dev, pdata ? pdata->clock : NULL); 1258 1259 /* read TWL IDCODE Register */ 1260 if (twl_class_is_4030()) { 1261 status = twl_read_idcode_register(); 1262 WARN(status < 0, "Error: reading twl_idcode register value\n"); 1263 } 1264 1265 /* load power event scripts */ 1266 if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata && pdata->power) 1267 twl4030_power_init(pdata->power); 1268 1269 /* Maybe init the T2 Interrupt subsystem */ 1270 if (client->irq) { 1271 if (twl_class_is_4030()) { 1272 twl4030_init_chip_irq(id->name); 1273 irq_base = twl4030_init_irq(&client->dev, client->irq); 1274 } else { 1275 irq_base = twl6030_init_irq(&client->dev, client->irq); 1276 } 1277 1278 if (irq_base < 0) { 1279 status = irq_base; 1280 goto fail; 1281 } 1282 } 1283 1284 /* 1285 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1286 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1287 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1288 */ 1289 if (twl_class_is_4030()) { 1290 u8 temp; 1291 1292 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1293 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1294 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1295 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1296 } 1297 1298 if (node) 1299 status = of_platform_populate(node, NULL, NULL, &client->dev); 1300 else 1301 status = add_children(pdata, irq_base, id->driver_data); 1302 1303 fail: 1304 if (status < 0) 1305 twl_remove(client); 1306 free: 1307 if (status < 0) 1308 platform_device_unregister(pdev); 1309 1310 return status; 1311 } 1312 1313 static const struct i2c_device_id twl_ids[] = { 1314 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1315 { "twl5030", 0 }, /* T2 updated */ 1316 { "twl5031", TWL5031 }, /* TWL5030 updated */ 1317 { "tps65950", 0 }, /* catalog version of twl5030 */ 1318 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1319 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 1320 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED 1321 and vibrator. Charger in USB module*/ 1322 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1323 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ 1324 { /* end of list */ }, 1325 }; 1326 MODULE_DEVICE_TABLE(i2c, twl_ids); 1327 1328 /* One Client Driver , 4 Clients */ 1329 static struct i2c_driver twl_driver = { 1330 .driver.name = DRIVER_NAME, 1331 .id_table = twl_ids, 1332 .probe = twl_probe, 1333 .remove = twl_remove, 1334 }; 1335 1336 static int __init twl_init(void) 1337 { 1338 return i2c_add_driver(&twl_driver); 1339 } 1340 subsys_initcall(twl_init); 1341 1342 static void __exit twl_exit(void) 1343 { 1344 i2c_del_driver(&twl_driver); 1345 } 1346 module_exit(twl_exit); 1347 1348 MODULE_AUTHOR("Texas Instruments, Inc."); 1349 MODULE_DESCRIPTION("I2C Core interface for TWL"); 1350 MODULE_LICENSE("GPL"); 1351