1 /* 2 * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM 3 * and audio CODEC devices 4 * 5 * Copyright (C) 2005-2006 Texas Instruments, Inc. 6 * 7 * Modifications to defer interrupt handling to a kernel thread: 8 * Copyright (C) 2006 MontaVista Software, Inc. 9 * 10 * Based on tlv320aic23.c: 11 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com> 12 * 13 * Code cleanup and modifications to IRQ handler. 14 * by syed khasim <x0khasim@ti.com> 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or 19 * (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 */ 30 31 #include <linux/init.h> 32 #include <linux/mutex.h> 33 #include <linux/module.h> 34 #include <linux/platform_device.h> 35 #include <linux/clk.h> 36 #include <linux/err.h> 37 #include <linux/device.h> 38 #include <linux/of.h> 39 #include <linux/of_irq.h> 40 #include <linux/of_platform.h> 41 #include <linux/irqdomain.h> 42 43 #include <linux/regulator/machine.h> 44 45 #include <linux/i2c.h> 46 #include <linux/i2c/twl.h> 47 48 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 49 #include <plat/cpu.h> 50 #endif 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 #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) 68 #define twl_has_keypad() true 69 #else 70 #define twl_has_keypad() false 71 #endif 72 73 #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) 74 #define twl_has_gpio() true 75 #else 76 #define twl_has_gpio() false 77 #endif 78 79 #if defined(CONFIG_REGULATOR_TWL4030) \ 80 || defined(CONFIG_REGULATOR_TWL4030_MODULE) 81 #define twl_has_regulator() true 82 #else 83 #define twl_has_regulator() false 84 #endif 85 86 #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) 87 #define twl_has_madc() true 88 #else 89 #define twl_has_madc() false 90 #endif 91 92 #ifdef CONFIG_TWL4030_POWER 93 #define twl_has_power() true 94 #else 95 #define twl_has_power() false 96 #endif 97 98 #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) 99 #define twl_has_rtc() true 100 #else 101 #define twl_has_rtc() false 102 #endif 103 104 #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ 105 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) 106 #define twl_has_usb() true 107 #else 108 #define twl_has_usb() false 109 #endif 110 111 #if defined(CONFIG_TWL4030_WATCHDOG) || \ 112 defined(CONFIG_TWL4030_WATCHDOG_MODULE) 113 #define twl_has_watchdog() true 114 #else 115 #define twl_has_watchdog() false 116 #endif 117 118 #if defined(CONFIG_MFD_TWL4030_AUDIO) || defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) ||\ 119 defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE) 120 #define twl_has_codec() true 121 #else 122 #define twl_has_codec() false 123 #endif 124 125 #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) 126 #define twl_has_bci() true 127 #else 128 #define twl_has_bci() false 129 #endif 130 131 /* Triton Core internal information (BEGIN) */ 132 133 /* Last - for index max*/ 134 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG 135 136 #define TWL_NUM_SLAVES 4 137 138 #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ 139 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) 140 #define twl_has_pwrbutton() true 141 #else 142 #define twl_has_pwrbutton() false 143 #endif 144 145 #define SUB_CHIP_ID0 0 146 #define SUB_CHIP_ID1 1 147 #define SUB_CHIP_ID2 2 148 #define SUB_CHIP_ID3 3 149 150 #define TWL_MODULE_LAST TWL4030_MODULE_LAST 151 152 #define TWL4030_NR_IRQS 8 153 #define TWL6030_NR_IRQS 20 154 155 /* Base Address defns for twl4030_map[] */ 156 157 /* subchip/slave 0 - USB ID */ 158 #define TWL4030_BASEADD_USB 0x0000 159 160 /* subchip/slave 1 - AUD ID */ 161 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 162 #define TWL4030_BASEADD_GPIO 0x0098 163 #define TWL4030_BASEADD_INTBR 0x0085 164 #define TWL4030_BASEADD_PIH 0x0080 165 #define TWL4030_BASEADD_TEST 0x004C 166 167 /* subchip/slave 2 - AUX ID */ 168 #define TWL4030_BASEADD_INTERRUPTS 0x00B9 169 #define TWL4030_BASEADD_LED 0x00EE 170 #define TWL4030_BASEADD_MADC 0x0000 171 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 172 #define TWL4030_BASEADD_PRECHARGE 0x00AA 173 #define TWL4030_BASEADD_PWM0 0x00F8 174 #define TWL4030_BASEADD_PWM1 0x00FB 175 #define TWL4030_BASEADD_PWMA 0x00EF 176 #define TWL4030_BASEADD_PWMB 0x00F1 177 #define TWL4030_BASEADD_KEYPAD 0x00D2 178 179 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ 180 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's 181 one */ 182 183 /* subchip/slave 3 - POWER ID */ 184 #define TWL4030_BASEADD_BACKUP 0x0014 185 #define TWL4030_BASEADD_INT 0x002E 186 #define TWL4030_BASEADD_PM_MASTER 0x0036 187 #define TWL4030_BASEADD_PM_RECEIVER 0x005B 188 #define TWL4030_BASEADD_RTC 0x001C 189 #define TWL4030_BASEADD_SECURED_REG 0x0000 190 191 /* Triton Core internal information (END) */ 192 193 194 /* subchip/slave 0 0x48 - POWER */ 195 #define TWL6030_BASEADD_RTC 0x0000 196 #define TWL6030_BASEADD_MEM 0x0017 197 #define TWL6030_BASEADD_PM_MASTER 0x001F 198 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ 199 #define TWL6030_BASEADD_PM_MISC 0x00E2 200 #define TWL6030_BASEADD_PM_PUPD 0x00F0 201 202 /* subchip/slave 1 0x49 - FEATURE */ 203 #define TWL6030_BASEADD_USB 0x0000 204 #define TWL6030_BASEADD_GPADC_CTRL 0x002E 205 #define TWL6030_BASEADD_AUX 0x0090 206 #define TWL6030_BASEADD_PWM 0x00BA 207 #define TWL6030_BASEADD_GASGAUGE 0x00C0 208 #define TWL6030_BASEADD_PIH 0x00D0 209 #define TWL6030_BASEADD_CHARGER 0x00E0 210 #define TWL6025_BASEADD_CHARGER 0x00DA 211 212 /* subchip/slave 2 0x4A - DFT */ 213 #define TWL6030_BASEADD_DIEID 0x00C0 214 215 /* subchip/slave 3 0x4B - AUDIO */ 216 #define TWL6030_BASEADD_AUDIO 0x0000 217 #define TWL6030_BASEADD_RSV 0x0000 218 #define TWL6030_BASEADD_ZERO 0x0000 219 220 /* Few power values */ 221 #define R_CFG_BOOT 0x05 222 223 /* some fields in R_CFG_BOOT */ 224 #define HFCLK_FREQ_19p2_MHZ (1 << 0) 225 #define HFCLK_FREQ_26_MHZ (2 << 0) 226 #define HFCLK_FREQ_38p4_MHZ (3 << 0) 227 #define HIGH_PERF_SQ (1 << 3) 228 #define CK32K_LOWPWR_EN (1 << 7) 229 230 231 /* chip-specific feature flags, for i2c_device_id.driver_data */ 232 #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */ 233 #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */ 234 #define TWL5031 BIT(2) /* twl5031 has different registers */ 235 #define TWL6030_CLASS BIT(3) /* TWL6030 class */ 236 237 /*----------------------------------------------------------------------*/ 238 239 /* is driver active, bound to a chip? */ 240 static bool inuse; 241 242 /* TWL IDCODE Register value */ 243 static u32 twl_idcode; 244 245 static unsigned int twl_id; 246 unsigned int twl_rev(void) 247 { 248 return twl_id; 249 } 250 EXPORT_SYMBOL(twl_rev); 251 252 /* Structure for each TWL4030/TWL6030 Slave */ 253 struct twl_client { 254 struct i2c_client *client; 255 u8 address; 256 257 /* max numb of i2c_msg required is for read =2 */ 258 struct i2c_msg xfer_msg[2]; 259 260 /* To lock access to xfer_msg */ 261 struct mutex xfer_lock; 262 }; 263 264 static struct twl_client twl_modules[TWL_NUM_SLAVES]; 265 266 static struct irq_domain domain; 267 268 /* mapping the module id to slave id and base address */ 269 struct twl_mapping { 270 unsigned char sid; /* Slave ID */ 271 unsigned char base; /* base address */ 272 }; 273 static struct twl_mapping *twl_map; 274 275 static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { 276 /* 277 * NOTE: don't change this table without updating the 278 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 279 * so they continue to match the order in this table. 280 */ 281 282 { 0, TWL4030_BASEADD_USB }, 283 284 { 1, TWL4030_BASEADD_AUDIO_VOICE }, 285 { 1, TWL4030_BASEADD_GPIO }, 286 { 1, TWL4030_BASEADD_INTBR }, 287 { 1, TWL4030_BASEADD_PIH }, 288 { 1, TWL4030_BASEADD_TEST }, 289 290 { 2, TWL4030_BASEADD_KEYPAD }, 291 { 2, TWL4030_BASEADD_MADC }, 292 { 2, TWL4030_BASEADD_INTERRUPTS }, 293 { 2, TWL4030_BASEADD_LED }, 294 { 2, TWL4030_BASEADD_MAIN_CHARGE }, 295 { 2, TWL4030_BASEADD_PRECHARGE }, 296 { 2, TWL4030_BASEADD_PWM0 }, 297 { 2, TWL4030_BASEADD_PWM1 }, 298 { 2, TWL4030_BASEADD_PWMA }, 299 { 2, TWL4030_BASEADD_PWMB }, 300 { 2, TWL5031_BASEADD_ACCESSORY }, 301 { 2, TWL5031_BASEADD_INTERRUPTS }, 302 303 { 3, TWL4030_BASEADD_BACKUP }, 304 { 3, TWL4030_BASEADD_INT }, 305 { 3, TWL4030_BASEADD_PM_MASTER }, 306 { 3, TWL4030_BASEADD_PM_RECEIVER }, 307 { 3, TWL4030_BASEADD_RTC }, 308 { 3, TWL4030_BASEADD_SECURED_REG }, 309 }; 310 311 static struct twl_mapping twl6030_map[] = { 312 /* 313 * NOTE: don't change this table without updating the 314 * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 315 * so they continue to match the order in this table. 316 */ 317 { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, 318 { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO }, 319 { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, 320 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 321 { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, 322 323 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 324 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 325 { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, 326 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 327 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 328 329 { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, 330 { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, 331 { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, 332 { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, 333 { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, 334 335 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 336 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 337 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 338 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 339 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 340 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, 341 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, 342 343 { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, 344 { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, 345 { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, 346 }; 347 348 /*----------------------------------------------------------------------*/ 349 350 /* Exported Functions */ 351 352 /** 353 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 354 * @mod_no: module number 355 * @value: an array of num_bytes+1 containing data to write 356 * @reg: register address (just offset will do) 357 * @num_bytes: number of bytes to transfer 358 * 359 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and 360 * valid data starts at Offset 1. 361 * 362 * Returns the result of operation - 0 is success 363 */ 364 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 365 { 366 int ret; 367 int sid; 368 struct twl_client *twl; 369 struct i2c_msg *msg; 370 371 if (unlikely(mod_no > TWL_MODULE_LAST)) { 372 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 373 return -EPERM; 374 } 375 if (unlikely(!inuse)) { 376 pr_err("%s: not initialized\n", DRIVER_NAME); 377 return -EPERM; 378 } 379 sid = twl_map[mod_no].sid; 380 twl = &twl_modules[sid]; 381 382 mutex_lock(&twl->xfer_lock); 383 /* 384 * [MSG1]: fill the register address data 385 * fill the data Tx buffer 386 */ 387 msg = &twl->xfer_msg[0]; 388 msg->addr = twl->address; 389 msg->len = num_bytes + 1; 390 msg->flags = 0; 391 msg->buf = value; 392 /* over write the first byte of buffer with the register address */ 393 *value = twl_map[mod_no].base + reg; 394 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); 395 mutex_unlock(&twl->xfer_lock); 396 397 /* i2c_transfer returns number of messages transferred */ 398 if (ret != 1) { 399 pr_err("%s: i2c_write failed to transfer all messages\n", 400 DRIVER_NAME); 401 if (ret < 0) 402 return ret; 403 else 404 return -EIO; 405 } else { 406 return 0; 407 } 408 } 409 EXPORT_SYMBOL(twl_i2c_write); 410 411 /** 412 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 413 * @mod_no: module number 414 * @value: an array of num_bytes containing data to be read 415 * @reg: register address (just offset will do) 416 * @num_bytes: number of bytes to transfer 417 * 418 * Returns result of operation - num_bytes is success else failure. 419 */ 420 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 421 { 422 int ret; 423 u8 val; 424 int sid; 425 struct twl_client *twl; 426 struct i2c_msg *msg; 427 428 if (unlikely(mod_no > TWL_MODULE_LAST)) { 429 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 430 return -EPERM; 431 } 432 if (unlikely(!inuse)) { 433 pr_err("%s: not initialized\n", DRIVER_NAME); 434 return -EPERM; 435 } 436 sid = twl_map[mod_no].sid; 437 twl = &twl_modules[sid]; 438 439 mutex_lock(&twl->xfer_lock); 440 /* [MSG1] fill the register address data */ 441 msg = &twl->xfer_msg[0]; 442 msg->addr = twl->address; 443 msg->len = 1; 444 msg->flags = 0; /* Read the register value */ 445 val = twl_map[mod_no].base + reg; 446 msg->buf = &val; 447 /* [MSG2] fill the data rx buffer */ 448 msg = &twl->xfer_msg[1]; 449 msg->addr = twl->address; 450 msg->flags = I2C_M_RD; /* Read the register value */ 451 msg->len = num_bytes; /* only n bytes */ 452 msg->buf = value; 453 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); 454 mutex_unlock(&twl->xfer_lock); 455 456 /* i2c_transfer returns number of messages transferred */ 457 if (ret != 2) { 458 pr_err("%s: i2c_read failed to transfer all messages\n", 459 DRIVER_NAME); 460 if (ret < 0) 461 return ret; 462 else 463 return -EIO; 464 } else { 465 return 0; 466 } 467 } 468 EXPORT_SYMBOL(twl_i2c_read); 469 470 /** 471 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 472 * @mod_no: module number 473 * @value: the value to be written 8 bit 474 * @reg: register address (just offset will do) 475 * 476 * Returns result of operation - 0 is success 477 */ 478 int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 479 { 480 481 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ 482 u8 temp_buffer[2] = { 0 }; 483 /* offset 1 contains the data */ 484 temp_buffer[1] = value; 485 return twl_i2c_write(mod_no, temp_buffer, reg, 1); 486 } 487 EXPORT_SYMBOL(twl_i2c_write_u8); 488 489 /** 490 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 491 * @mod_no: module number 492 * @value: the value read 8 bit 493 * @reg: register address (just offset will do) 494 * 495 * Returns result of operation - 0 is success 496 */ 497 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 498 { 499 return twl_i2c_read(mod_no, value, reg, 1); 500 } 501 EXPORT_SYMBOL(twl_i2c_read_u8); 502 503 /*----------------------------------------------------------------------*/ 504 505 /** 506 * twl_read_idcode_register - API to read the IDCODE register. 507 * 508 * Unlocks the IDCODE register and read the 32 bit value. 509 */ 510 static int twl_read_idcode_register(void) 511 { 512 int err; 513 514 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, 515 REG_UNLOCK_TEST_REG); 516 if (err) { 517 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); 518 goto fail; 519 } 520 521 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), 522 REG_IDCODE_7_0, 4); 523 if (err) { 524 pr_err("TWL4030: unable to read IDCODE -%d\n", err); 525 goto fail; 526 } 527 528 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); 529 if (err) 530 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); 531 fail: 532 return err; 533 } 534 535 /** 536 * twl_get_type - API to get TWL Si type. 537 * 538 * Api to get the TWL Si type from IDCODE value. 539 */ 540 int twl_get_type(void) 541 { 542 return TWL_SIL_TYPE(twl_idcode); 543 } 544 EXPORT_SYMBOL_GPL(twl_get_type); 545 546 /** 547 * twl_get_version - API to get TWL Si version. 548 * 549 * Api to get the TWL Si version from IDCODE value. 550 */ 551 int twl_get_version(void) 552 { 553 return TWL_SIL_REV(twl_idcode); 554 } 555 EXPORT_SYMBOL_GPL(twl_get_version); 556 557 static struct device * 558 add_numbered_child(unsigned chip, const char *name, int num, 559 void *pdata, unsigned pdata_len, 560 bool can_wakeup, int irq0, int irq1) 561 { 562 struct platform_device *pdev; 563 struct twl_client *twl = &twl_modules[chip]; 564 int status; 565 566 pdev = platform_device_alloc(name, num); 567 if (!pdev) { 568 dev_dbg(&twl->client->dev, "can't alloc dev\n"); 569 status = -ENOMEM; 570 goto err; 571 } 572 573 device_init_wakeup(&pdev->dev, can_wakeup); 574 pdev->dev.parent = &twl->client->dev; 575 576 if (pdata) { 577 status = platform_device_add_data(pdev, pdata, pdata_len); 578 if (status < 0) { 579 dev_dbg(&pdev->dev, "can't add platform_data\n"); 580 goto err; 581 } 582 } 583 584 if (irq0) { 585 struct resource r[2] = { 586 { .start = irq0, .flags = IORESOURCE_IRQ, }, 587 { .start = irq1, .flags = IORESOURCE_IRQ, }, 588 }; 589 590 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 591 if (status < 0) { 592 dev_dbg(&pdev->dev, "can't add irqs\n"); 593 goto err; 594 } 595 } 596 597 status = platform_device_add(pdev); 598 599 err: 600 if (status < 0) { 601 platform_device_put(pdev); 602 dev_err(&twl->client->dev, "can't add %s dev\n", name); 603 return ERR_PTR(status); 604 } 605 return &pdev->dev; 606 } 607 608 static inline struct device *add_child(unsigned chip, const char *name, 609 void *pdata, unsigned pdata_len, 610 bool can_wakeup, int irq0, int irq1) 611 { 612 return add_numbered_child(chip, name, -1, pdata, pdata_len, 613 can_wakeup, irq0, irq1); 614 } 615 616 static struct device * 617 add_regulator_linked(int num, struct regulator_init_data *pdata, 618 struct regulator_consumer_supply *consumers, 619 unsigned num_consumers, unsigned long features) 620 { 621 unsigned sub_chip_id; 622 /* regulator framework demands init_data ... */ 623 if (!pdata) 624 return NULL; 625 626 if (consumers) { 627 pdata->consumer_supplies = consumers; 628 pdata->num_consumer_supplies = num_consumers; 629 } 630 631 pdata->driver_data = (void *)features; 632 633 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 634 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; 635 return add_numbered_child(sub_chip_id, "twl_reg", num, 636 pdata, sizeof(*pdata), false, 0, 0); 637 } 638 639 static struct device * 640 add_regulator(int num, struct regulator_init_data *pdata, 641 unsigned long features) 642 { 643 return add_regulator_linked(num, pdata, NULL, 0, features); 644 } 645 646 /* 647 * NOTE: We know the first 8 IRQs after pdata->base_irq are 648 * for the PIH, and the next are for the PWR_INT SIH, since 649 * that's how twl_init_irq() sets things up. 650 */ 651 652 static int 653 add_children(struct twl4030_platform_data *pdata, unsigned long features) 654 { 655 struct device *child; 656 unsigned sub_chip_id; 657 658 if (twl_has_gpio() && pdata->gpio) { 659 child = add_child(SUB_CHIP_ID1, "twl4030_gpio", 660 pdata->gpio, sizeof(*pdata->gpio), 661 false, pdata->irq_base + GPIO_INTR_OFFSET, 0); 662 if (IS_ERR(child)) 663 return PTR_ERR(child); 664 } 665 666 if (twl_has_keypad() && pdata->keypad) { 667 child = add_child(SUB_CHIP_ID2, "twl4030_keypad", 668 pdata->keypad, sizeof(*pdata->keypad), 669 true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0); 670 if (IS_ERR(child)) 671 return PTR_ERR(child); 672 } 673 674 if (twl_has_madc() && pdata->madc) { 675 child = add_child(2, "twl4030_madc", 676 pdata->madc, sizeof(*pdata->madc), 677 true, pdata->irq_base + MADC_INTR_OFFSET, 0); 678 if (IS_ERR(child)) 679 return PTR_ERR(child); 680 } 681 682 if (twl_has_rtc()) { 683 /* 684 * REVISIT platform_data here currently might expose the 685 * "msecure" line ... but for now we just expect board 686 * setup to tell the chip "it's always ok to SET_TIME". 687 * Eventually, Linux might become more aware of such 688 * HW security concerns, and "least privilege". 689 */ 690 sub_chip_id = twl_map[TWL_MODULE_RTC].sid; 691 child = add_child(sub_chip_id, "twl_rtc", 692 NULL, 0, 693 true, pdata->irq_base + RTC_INTR_OFFSET, 0); 694 if (IS_ERR(child)) 695 return PTR_ERR(child); 696 } 697 698 if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { 699 700 static struct regulator_consumer_supply usb1v5 = { 701 .supply = "usb1v5", 702 }; 703 static struct regulator_consumer_supply usb1v8 = { 704 .supply = "usb1v8", 705 }; 706 static struct regulator_consumer_supply usb3v1 = { 707 .supply = "usb3v1", 708 }; 709 710 /* First add the regulators so that they can be used by transceiver */ 711 if (twl_has_regulator()) { 712 /* this is a template that gets copied */ 713 struct regulator_init_data usb_fixed = { 714 .constraints.valid_modes_mask = 715 REGULATOR_MODE_NORMAL 716 | REGULATOR_MODE_STANDBY, 717 .constraints.valid_ops_mask = 718 REGULATOR_CHANGE_MODE 719 | REGULATOR_CHANGE_STATUS, 720 }; 721 722 child = add_regulator_linked(TWL4030_REG_VUSB1V5, 723 &usb_fixed, &usb1v5, 1, 724 features); 725 if (IS_ERR(child)) 726 return PTR_ERR(child); 727 728 child = add_regulator_linked(TWL4030_REG_VUSB1V8, 729 &usb_fixed, &usb1v8, 1, 730 features); 731 if (IS_ERR(child)) 732 return PTR_ERR(child); 733 734 child = add_regulator_linked(TWL4030_REG_VUSB3V1, 735 &usb_fixed, &usb3v1, 1, 736 features); 737 if (IS_ERR(child)) 738 return PTR_ERR(child); 739 740 } 741 742 child = add_child(0, "twl4030_usb", 743 pdata->usb, sizeof(*pdata->usb), 744 true, 745 /* irq0 = USB_PRES, irq1 = USB */ 746 pdata->irq_base + USB_PRES_INTR_OFFSET, 747 pdata->irq_base + USB_INTR_OFFSET); 748 749 if (IS_ERR(child)) 750 return PTR_ERR(child); 751 752 /* we need to connect regulators to this transceiver */ 753 if (twl_has_regulator() && child) { 754 usb1v5.dev = child; 755 usb1v8.dev = child; 756 usb3v1.dev = child; 757 } 758 } 759 if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { 760 761 static struct regulator_consumer_supply usb3v3; 762 int regulator; 763 764 if (twl_has_regulator()) { 765 /* this is a template that gets copied */ 766 struct regulator_init_data usb_fixed = { 767 .constraints.valid_modes_mask = 768 REGULATOR_MODE_NORMAL 769 | REGULATOR_MODE_STANDBY, 770 .constraints.valid_ops_mask = 771 REGULATOR_CHANGE_MODE 772 | REGULATOR_CHANGE_STATUS, 773 }; 774 775 if (features & TWL6025_SUBCLASS) { 776 usb3v3.supply = "ldousb"; 777 regulator = TWL6025_REG_LDOUSB; 778 } else { 779 usb3v3.supply = "vusb"; 780 regulator = TWL6030_REG_VUSB; 781 } 782 child = add_regulator_linked(regulator, &usb_fixed, 783 &usb3v3, 1, 784 features); 785 if (IS_ERR(child)) 786 return PTR_ERR(child); 787 } 788 789 pdata->usb->features = features; 790 791 child = add_child(0, "twl6030_usb", 792 pdata->usb, sizeof(*pdata->usb), 793 true, 794 /* irq1 = VBUS_PRES, irq0 = USB ID */ 795 pdata->irq_base + USBOTG_INTR_OFFSET, 796 pdata->irq_base + USB_PRES_INTR_OFFSET); 797 798 if (IS_ERR(child)) 799 return PTR_ERR(child); 800 /* we need to connect regulators to this transceiver */ 801 if (twl_has_regulator() && child) 802 usb3v3.dev = child; 803 } else if (twl_has_regulator() && twl_class_is_6030()) { 804 if (features & TWL6025_SUBCLASS) 805 child = add_regulator(TWL6025_REG_LDOUSB, 806 pdata->ldousb, features); 807 else 808 child = add_regulator(TWL6030_REG_VUSB, 809 pdata->vusb, features); 810 811 if (IS_ERR(child)) 812 return PTR_ERR(child); 813 } 814 815 if (twl_has_watchdog() && twl_class_is_4030()) { 816 child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); 817 if (IS_ERR(child)) 818 return PTR_ERR(child); 819 } 820 821 if (twl_has_pwrbutton() && twl_class_is_4030()) { 822 child = add_child(1, "twl4030_pwrbutton", 823 NULL, 0, true, pdata->irq_base + 8 + 0, 0); 824 if (IS_ERR(child)) 825 return PTR_ERR(child); 826 } 827 828 if (twl_has_codec() && pdata->audio && twl_class_is_4030()) { 829 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 830 child = add_child(sub_chip_id, "twl4030-audio", 831 pdata->audio, sizeof(*pdata->audio), 832 false, 0, 0); 833 if (IS_ERR(child)) 834 return PTR_ERR(child); 835 } 836 837 if (twl_has_codec() && pdata->audio && twl_class_is_6030()) { 838 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 839 child = add_child(sub_chip_id, "twl6040", 840 pdata->audio, sizeof(*pdata->audio), 841 false, 0, 0); 842 if (IS_ERR(child)) 843 return PTR_ERR(child); 844 } 845 846 /* twl4030 regulators */ 847 if (twl_has_regulator() && twl_class_is_4030()) { 848 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, 849 features); 850 if (IS_ERR(child)) 851 return PTR_ERR(child); 852 853 child = add_regulator(TWL4030_REG_VIO, pdata->vio, 854 features); 855 if (IS_ERR(child)) 856 return PTR_ERR(child); 857 858 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, 859 features); 860 if (IS_ERR(child)) 861 return PTR_ERR(child); 862 863 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, 864 features); 865 if (IS_ERR(child)) 866 return PTR_ERR(child); 867 868 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, 869 features); 870 if (IS_ERR(child)) 871 return PTR_ERR(child); 872 873 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, 874 features); 875 if (IS_ERR(child)) 876 return PTR_ERR(child); 877 878 child = add_regulator((features & TWL4030_VAUX2) 879 ? TWL4030_REG_VAUX2_4030 880 : TWL4030_REG_VAUX2, 881 pdata->vaux2, features); 882 if (IS_ERR(child)) 883 return PTR_ERR(child); 884 885 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, 886 features); 887 if (IS_ERR(child)) 888 return PTR_ERR(child); 889 890 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, 891 features); 892 if (IS_ERR(child)) 893 return PTR_ERR(child); 894 895 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, 896 features); 897 if (IS_ERR(child)) 898 return PTR_ERR(child); 899 } 900 901 /* maybe add LDOs that are omitted on cost-reduced parts */ 902 if (twl_has_regulator() && !(features & TPS_SUBSET) 903 && twl_class_is_4030()) { 904 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, 905 features); 906 if (IS_ERR(child)) 907 return PTR_ERR(child); 908 909 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, 910 features); 911 if (IS_ERR(child)) 912 return PTR_ERR(child); 913 914 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, 915 features); 916 if (IS_ERR(child)) 917 return PTR_ERR(child); 918 919 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, 920 features); 921 if (IS_ERR(child)) 922 return PTR_ERR(child); 923 924 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, 925 features); 926 if (IS_ERR(child)) 927 return PTR_ERR(child); 928 929 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, 930 features); 931 if (IS_ERR(child)) 932 return PTR_ERR(child); 933 } 934 935 /* twl6030 regulators */ 936 if (twl_has_regulator() && twl_class_is_6030() && 937 !(features & TWL6025_SUBCLASS)) { 938 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, 939 features); 940 if (IS_ERR(child)) 941 return PTR_ERR(child); 942 943 child = add_regulator(TWL6030_REG_VPP, pdata->vpp, 944 features); 945 if (IS_ERR(child)) 946 return PTR_ERR(child); 947 948 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, 949 features); 950 if (IS_ERR(child)) 951 return PTR_ERR(child); 952 953 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, 954 features); 955 if (IS_ERR(child)) 956 return PTR_ERR(child); 957 958 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, 959 features); 960 if (IS_ERR(child)) 961 return PTR_ERR(child); 962 963 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, 964 features); 965 if (IS_ERR(child)) 966 return PTR_ERR(child); 967 968 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, 969 features); 970 if (IS_ERR(child)) 971 return PTR_ERR(child); 972 973 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, 974 features); 975 if (IS_ERR(child)) 976 return PTR_ERR(child); 977 978 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, 979 features); 980 if (IS_ERR(child)) 981 return PTR_ERR(child); 982 } 983 984 /* 6030 and 6025 share this regulator */ 985 if (twl_has_regulator() && twl_class_is_6030()) { 986 child = add_regulator(TWL6030_REG_VANA, pdata->vana, 987 features); 988 if (IS_ERR(child)) 989 return PTR_ERR(child); 990 } 991 992 /* twl6025 regulators */ 993 if (twl_has_regulator() && twl_class_is_6030() && 994 (features & TWL6025_SUBCLASS)) { 995 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, 996 features); 997 if (IS_ERR(child)) 998 return PTR_ERR(child); 999 1000 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, 1001 features); 1002 if (IS_ERR(child)) 1003 return PTR_ERR(child); 1004 1005 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, 1006 features); 1007 if (IS_ERR(child)) 1008 return PTR_ERR(child); 1009 1010 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, 1011 features); 1012 if (IS_ERR(child)) 1013 return PTR_ERR(child); 1014 1015 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, 1016 features); 1017 if (IS_ERR(child)) 1018 return PTR_ERR(child); 1019 1020 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, 1021 features); 1022 if (IS_ERR(child)) 1023 return PTR_ERR(child); 1024 1025 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, 1026 features); 1027 if (IS_ERR(child)) 1028 return PTR_ERR(child); 1029 1030 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, 1031 features); 1032 if (IS_ERR(child)) 1033 return PTR_ERR(child); 1034 1035 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, 1036 features); 1037 if (IS_ERR(child)) 1038 return PTR_ERR(child); 1039 1040 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, 1041 features); 1042 if (IS_ERR(child)) 1043 return PTR_ERR(child); 1044 1045 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, 1046 features); 1047 if (IS_ERR(child)) 1048 return PTR_ERR(child); 1049 1050 } 1051 1052 if (twl_has_bci() && pdata->bci && 1053 !(features & (TPS_SUBSET | TWL5031))) { 1054 child = add_child(3, "twl4030_bci", 1055 pdata->bci, sizeof(*pdata->bci), false, 1056 /* irq0 = CHG_PRES, irq1 = BCI */ 1057 pdata->irq_base + BCI_PRES_INTR_OFFSET, 1058 pdata->irq_base + BCI_INTR_OFFSET); 1059 if (IS_ERR(child)) 1060 return PTR_ERR(child); 1061 } 1062 1063 return 0; 1064 } 1065 1066 /*----------------------------------------------------------------------*/ 1067 1068 /* 1069 * These three functions initialize the on-chip clock framework, 1070 * letting it generate the right frequencies for USB, MADC, and 1071 * other purposes. 1072 */ 1073 static inline int __init protect_pm_master(void) 1074 { 1075 int e = 0; 1076 1077 e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, 1078 TWL4030_PM_MASTER_PROTECT_KEY); 1079 return e; 1080 } 1081 1082 static inline int __init unprotect_pm_master(void) 1083 { 1084 int e = 0; 1085 1086 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 1087 TWL4030_PM_MASTER_KEY_CFG1, 1088 TWL4030_PM_MASTER_PROTECT_KEY); 1089 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 1090 TWL4030_PM_MASTER_KEY_CFG2, 1091 TWL4030_PM_MASTER_PROTECT_KEY); 1092 1093 return e; 1094 } 1095 1096 static void clocks_init(struct device *dev, 1097 struct twl4030_clock_init_data *clock) 1098 { 1099 int e = 0; 1100 struct clk *osc; 1101 u32 rate; 1102 u8 ctrl = HFCLK_FREQ_26_MHZ; 1103 1104 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 1105 if (cpu_is_omap2430()) 1106 osc = clk_get(dev, "osc_ck"); 1107 else 1108 osc = clk_get(dev, "osc_sys_ck"); 1109 1110 if (IS_ERR(osc)) { 1111 printk(KERN_WARNING "Skipping twl internal clock init and " 1112 "using bootloader value (unknown osc rate)\n"); 1113 return; 1114 } 1115 1116 rate = clk_get_rate(osc); 1117 clk_put(osc); 1118 1119 #else 1120 /* REVISIT for non-OMAP systems, pass the clock rate from 1121 * board init code, using platform_data. 1122 */ 1123 osc = ERR_PTR(-EIO); 1124 1125 printk(KERN_WARNING "Skipping twl internal clock init and " 1126 "using bootloader value (unknown osc rate)\n"); 1127 1128 return; 1129 #endif 1130 1131 switch (rate) { 1132 case 19200000: 1133 ctrl = HFCLK_FREQ_19p2_MHZ; 1134 break; 1135 case 26000000: 1136 ctrl = HFCLK_FREQ_26_MHZ; 1137 break; 1138 case 38400000: 1139 ctrl = HFCLK_FREQ_38p4_MHZ; 1140 break; 1141 } 1142 1143 ctrl |= HIGH_PERF_SQ; 1144 if (clock && clock->ck32k_lowpwr_enable) 1145 ctrl |= CK32K_LOWPWR_EN; 1146 1147 e |= unprotect_pm_master(); 1148 /* effect->MADC+USB ck en */ 1149 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 1150 e |= protect_pm_master(); 1151 1152 if (e < 0) 1153 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 1154 } 1155 1156 /*----------------------------------------------------------------------*/ 1157 1158 int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1159 int twl4030_exit_irq(void); 1160 int twl4030_init_chip_irq(const char *chip); 1161 int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1162 int twl6030_exit_irq(void); 1163 1164 static int twl_remove(struct i2c_client *client) 1165 { 1166 unsigned i; 1167 int status; 1168 1169 if (twl_class_is_4030()) 1170 status = twl4030_exit_irq(); 1171 else 1172 status = twl6030_exit_irq(); 1173 1174 if (status < 0) 1175 return status; 1176 1177 for (i = 0; i < TWL_NUM_SLAVES; i++) { 1178 struct twl_client *twl = &twl_modules[i]; 1179 1180 if (twl->client && twl->client != client) 1181 i2c_unregister_device(twl->client); 1182 twl_modules[i].client = NULL; 1183 } 1184 inuse = false; 1185 return 0; 1186 } 1187 1188 /* NOTE: this driver only handles a single twl4030/tps659x0 chip */ 1189 static int __devinit 1190 twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1191 { 1192 int status; 1193 unsigned i; 1194 struct twl4030_platform_data *pdata = client->dev.platform_data; 1195 struct device_node *node = client->dev.of_node; 1196 u8 temp; 1197 int ret = 0; 1198 int nr_irqs = TWL4030_NR_IRQS; 1199 1200 if ((id->driver_data) & TWL6030_CLASS) 1201 nr_irqs = TWL6030_NR_IRQS; 1202 1203 if (node && !pdata) { 1204 /* 1205 * XXX: Temporary pdata until the information is correctly 1206 * retrieved by every TWL modules from DT. 1207 */ 1208 pdata = devm_kzalloc(&client->dev, 1209 sizeof(struct twl4030_platform_data), 1210 GFP_KERNEL); 1211 if (!pdata) 1212 return -ENOMEM; 1213 } 1214 1215 if (!pdata) { 1216 dev_dbg(&client->dev, "no platform data?\n"); 1217 return -EINVAL; 1218 } 1219 1220 status = irq_alloc_descs(-1, pdata->irq_base, nr_irqs, 0); 1221 if (IS_ERR_VALUE(status)) { 1222 dev_err(&client->dev, "Fail to allocate IRQ descs\n"); 1223 return status; 1224 } 1225 1226 pdata->irq_base = status; 1227 pdata->irq_end = pdata->irq_base + nr_irqs; 1228 1229 domain.irq_base = pdata->irq_base; 1230 domain.nr_irq = nr_irqs; 1231 #ifdef CONFIG_OF_IRQ 1232 domain.of_node = of_node_get(node); 1233 domain.ops = &irq_domain_simple_ops; 1234 #endif 1235 irq_domain_add(&domain); 1236 1237 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1238 dev_dbg(&client->dev, "can't talk I2C?\n"); 1239 return -EIO; 1240 } 1241 1242 if (inuse) { 1243 dev_dbg(&client->dev, "driver is already in use\n"); 1244 return -EBUSY; 1245 } 1246 1247 for (i = 0; i < TWL_NUM_SLAVES; i++) { 1248 struct twl_client *twl = &twl_modules[i]; 1249 1250 twl->address = client->addr + i; 1251 if (i == 0) 1252 twl->client = client; 1253 else { 1254 twl->client = i2c_new_dummy(client->adapter, 1255 twl->address); 1256 if (!twl->client) { 1257 dev_err(&client->dev, 1258 "can't attach client %d\n", i); 1259 status = -ENOMEM; 1260 goto fail; 1261 } 1262 } 1263 mutex_init(&twl->xfer_lock); 1264 } 1265 inuse = true; 1266 if ((id->driver_data) & TWL6030_CLASS) { 1267 twl_id = TWL6030_CLASS_ID; 1268 twl_map = &twl6030_map[0]; 1269 } else { 1270 twl_id = TWL4030_CLASS_ID; 1271 twl_map = &twl4030_map[0]; 1272 } 1273 1274 /* setup clock framework */ 1275 clocks_init(&client->dev, pdata->clock); 1276 1277 /* read TWL IDCODE Register */ 1278 if (twl_id == TWL4030_CLASS_ID) { 1279 ret = twl_read_idcode_register(); 1280 WARN(ret < 0, "Error: reading twl_idcode register value\n"); 1281 } 1282 1283 /* load power event scripts */ 1284 if (twl_has_power() && pdata->power) 1285 twl4030_power_init(pdata->power); 1286 1287 /* Maybe init the T2 Interrupt subsystem */ 1288 if (client->irq 1289 && pdata->irq_base 1290 && pdata->irq_end > pdata->irq_base) { 1291 if (twl_class_is_4030()) { 1292 twl4030_init_chip_irq(id->name); 1293 status = twl4030_init_irq(client->irq, pdata->irq_base, 1294 pdata->irq_end); 1295 } else { 1296 status = twl6030_init_irq(client->irq, pdata->irq_base, 1297 pdata->irq_end); 1298 } 1299 1300 if (status < 0) 1301 goto fail; 1302 } 1303 1304 /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1305 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1306 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1307 */ 1308 1309 if (twl_class_is_4030()) { 1310 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1311 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1312 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1313 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1314 } 1315 1316 #ifdef CONFIG_OF_DEVICE 1317 if (node) 1318 status = of_platform_populate(node, NULL, NULL, &client->dev); 1319 else 1320 #endif 1321 status = add_children(pdata, id->driver_data); 1322 1323 fail: 1324 if (status < 0) 1325 twl_remove(client); 1326 return status; 1327 } 1328 1329 static const struct i2c_device_id twl_ids[] = { 1330 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1331 { "twl5030", 0 }, /* T2 updated */ 1332 { "twl5031", TWL5031 }, /* TWL5030 updated */ 1333 { "tps65950", 0 }, /* catalog version of twl5030 */ 1334 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1335 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 1336 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED 1337 and vibrator. Charger in USB module*/ 1338 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1339 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ 1340 { /* end of list */ }, 1341 }; 1342 MODULE_DEVICE_TABLE(i2c, twl_ids); 1343 1344 /* One Client Driver , 4 Clients */ 1345 static struct i2c_driver twl_driver = { 1346 .driver.name = DRIVER_NAME, 1347 .id_table = twl_ids, 1348 .probe = twl_probe, 1349 .remove = twl_remove, 1350 }; 1351 1352 static int __init twl_init(void) 1353 { 1354 return i2c_add_driver(&twl_driver); 1355 } 1356 subsys_initcall(twl_init); 1357 1358 static void __exit twl_exit(void) 1359 { 1360 i2c_del_driver(&twl_driver); 1361 } 1362 module_exit(twl_exit); 1363 1364 MODULE_AUTHOR("Texas Instruments, Inc."); 1365 MODULE_DESCRIPTION("I2C Core interface for TWL"); 1366 MODULE_LICENSE("GPL"); 1367