1 /* 2 * Base driver for Marvell 88PM8607 3 * 4 * Copyright (C) 2009 Marvell International Ltd. 5 * Haojian Zhuang <haojian.zhuang@marvell.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/kernel.h> 13 #include <linux/module.h> 14 #include <linux/i2c.h> 15 #include <linux/irq.h> 16 #include <linux/interrupt.h> 17 #include <linux/platform_device.h> 18 #include <linux/mfd/core.h> 19 #include <linux/mfd/88pm860x.h> 20 #include <linux/regulator/machine.h> 21 22 #define INT_STATUS_NUM 3 23 24 static struct resource bk_resources[] __initdata = { 25 {PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO,}, 26 {PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO,}, 27 {PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO,}, 28 }; 29 30 static struct resource led_resources[] __initdata = { 31 {PM8606_LED1_RED, PM8606_LED1_RED, "led0-red", IORESOURCE_IO,}, 32 {PM8606_LED1_GREEN, PM8606_LED1_GREEN, "led0-green", IORESOURCE_IO,}, 33 {PM8606_LED1_BLUE, PM8606_LED1_BLUE, "led0-blue", IORESOURCE_IO,}, 34 {PM8606_LED2_RED, PM8606_LED2_RED, "led1-red", IORESOURCE_IO,}, 35 {PM8606_LED2_GREEN, PM8606_LED2_GREEN, "led1-green", IORESOURCE_IO,}, 36 {PM8606_LED2_BLUE, PM8606_LED2_BLUE, "led1-blue", IORESOURCE_IO,}, 37 }; 38 39 static struct resource regulator_resources[] __initdata = { 40 {PM8607_ID_BUCK1, PM8607_ID_BUCK1, "buck-1", IORESOURCE_IO,}, 41 {PM8607_ID_BUCK2, PM8607_ID_BUCK2, "buck-2", IORESOURCE_IO,}, 42 {PM8607_ID_BUCK3, PM8607_ID_BUCK3, "buck-3", IORESOURCE_IO,}, 43 {PM8607_ID_LDO1, PM8607_ID_LDO1, "ldo-01", IORESOURCE_IO,}, 44 {PM8607_ID_LDO2, PM8607_ID_LDO2, "ldo-02", IORESOURCE_IO,}, 45 {PM8607_ID_LDO3, PM8607_ID_LDO3, "ldo-03", IORESOURCE_IO,}, 46 {PM8607_ID_LDO4, PM8607_ID_LDO4, "ldo-04", IORESOURCE_IO,}, 47 {PM8607_ID_LDO5, PM8607_ID_LDO5, "ldo-05", IORESOURCE_IO,}, 48 {PM8607_ID_LDO6, PM8607_ID_LDO6, "ldo-06", IORESOURCE_IO,}, 49 {PM8607_ID_LDO7, PM8607_ID_LDO7, "ldo-07", IORESOURCE_IO,}, 50 {PM8607_ID_LDO8, PM8607_ID_LDO8, "ldo-08", IORESOURCE_IO,}, 51 {PM8607_ID_LDO9, PM8607_ID_LDO9, "ldo-09", IORESOURCE_IO,}, 52 {PM8607_ID_LDO10, PM8607_ID_LDO10, "ldo-10", IORESOURCE_IO,}, 53 {PM8607_ID_LDO11, PM8607_ID_LDO11, "ldo-11", IORESOURCE_IO,}, 54 {PM8607_ID_LDO12, PM8607_ID_LDO12, "ldo-12", IORESOURCE_IO,}, 55 {PM8607_ID_LDO13, PM8607_ID_LDO13, "ldo-13", IORESOURCE_IO,}, 56 {PM8607_ID_LDO14, PM8607_ID_LDO14, "ldo-14", IORESOURCE_IO,}, 57 {PM8607_ID_LDO15, PM8607_ID_LDO15, "ldo-15", IORESOURCE_IO,}, 58 }; 59 60 static struct resource touch_resources[] __initdata = { 61 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 62 }; 63 64 static struct resource onkey_resources[] __initdata = { 65 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 66 }; 67 68 static struct resource codec_resources[] __initdata = { 69 /* Headset microphone insertion or removal */ 70 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, 71 /* Hook-switch press or release */ 72 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, 73 /* Headset insertion or removal */ 74 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, 75 /* Audio short */ 76 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,}, 77 }; 78 79 static struct resource battery_resources[] __initdata = { 80 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, 81 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, 82 }; 83 84 static struct resource charger_resources[] __initdata = { 85 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, 86 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,}, 87 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging timeout", IORESOURCE_IRQ,}, 88 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,}, 89 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, 90 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, 91 }; 92 93 static struct mfd_cell bk_devs[] __initdata = { 94 {"88pm860x-backlight", 0,}, 95 {"88pm860x-backlight", 1,}, 96 {"88pm860x-backlight", 2,}, 97 }; 98 99 static struct mfd_cell led_devs[] __initdata = { 100 {"88pm860x-led", 0,}, 101 {"88pm860x-led", 1,}, 102 {"88pm860x-led", 2,}, 103 {"88pm860x-led", 3,}, 104 {"88pm860x-led", 4,}, 105 {"88pm860x-led", 5,}, 106 }; 107 108 static struct mfd_cell regulator_devs[] __initdata = { 109 {"88pm860x-regulator", 0,}, 110 {"88pm860x-regulator", 1,}, 111 {"88pm860x-regulator", 2,}, 112 {"88pm860x-regulator", 3,}, 113 {"88pm860x-regulator", 4,}, 114 {"88pm860x-regulator", 5,}, 115 {"88pm860x-regulator", 6,}, 116 {"88pm860x-regulator", 7,}, 117 {"88pm860x-regulator", 8,}, 118 {"88pm860x-regulator", 9,}, 119 {"88pm860x-regulator", 10,}, 120 {"88pm860x-regulator", 11,}, 121 {"88pm860x-regulator", 12,}, 122 {"88pm860x-regulator", 13,}, 123 {"88pm860x-regulator", 14,}, 124 {"88pm860x-regulator", 15,}, 125 {"88pm860x-regulator", 16,}, 126 {"88pm860x-regulator", 17,}, 127 }; 128 129 static struct mfd_cell touch_devs[] __initdata = { 130 {"88pm860x-touch", -1,}, 131 }; 132 133 static struct mfd_cell onkey_devs[] __initdata = { 134 {"88pm860x-onkey", -1,}, 135 }; 136 137 static struct mfd_cell codec_devs[] __initdata = { 138 {"88pm860x-codec", -1,}, 139 }; 140 141 static struct mfd_cell power_devs[] = { 142 {"88pm860x-battery", -1,}, 143 {"88pm860x-charger", -1,}, 144 }; 145 146 static struct pm860x_backlight_pdata bk_pdata[ARRAY_SIZE(bk_devs)]; 147 static struct pm860x_led_pdata led_pdata[ARRAY_SIZE(led_devs)]; 148 static struct regulator_init_data regulator_pdata[ARRAY_SIZE(regulator_devs)]; 149 static struct pm860x_touch_pdata touch_pdata; 150 static struct pm860x_power_pdata power_pdata; 151 152 struct pm860x_irq_data { 153 int reg; 154 int mask_reg; 155 int enable; /* enable or not */ 156 int offs; /* bit offset in mask register */ 157 }; 158 159 static struct pm860x_irq_data pm860x_irqs[] = { 160 [PM8607_IRQ_ONKEY] = { 161 .reg = PM8607_INT_STATUS1, 162 .mask_reg = PM8607_INT_MASK_1, 163 .offs = 1 << 0, 164 }, 165 [PM8607_IRQ_EXTON] = { 166 .reg = PM8607_INT_STATUS1, 167 .mask_reg = PM8607_INT_MASK_1, 168 .offs = 1 << 1, 169 }, 170 [PM8607_IRQ_CHG] = { 171 .reg = PM8607_INT_STATUS1, 172 .mask_reg = PM8607_INT_MASK_1, 173 .offs = 1 << 2, 174 }, 175 [PM8607_IRQ_BAT] = { 176 .reg = PM8607_INT_STATUS1, 177 .mask_reg = PM8607_INT_MASK_1, 178 .offs = 1 << 3, 179 }, 180 [PM8607_IRQ_RTC] = { 181 .reg = PM8607_INT_STATUS1, 182 .mask_reg = PM8607_INT_MASK_1, 183 .offs = 1 << 4, 184 }, 185 [PM8607_IRQ_CC] = { 186 .reg = PM8607_INT_STATUS1, 187 .mask_reg = PM8607_INT_MASK_1, 188 .offs = 1 << 5, 189 }, 190 [PM8607_IRQ_VBAT] = { 191 .reg = PM8607_INT_STATUS2, 192 .mask_reg = PM8607_INT_MASK_2, 193 .offs = 1 << 0, 194 }, 195 [PM8607_IRQ_VCHG] = { 196 .reg = PM8607_INT_STATUS2, 197 .mask_reg = PM8607_INT_MASK_2, 198 .offs = 1 << 1, 199 }, 200 [PM8607_IRQ_VSYS] = { 201 .reg = PM8607_INT_STATUS2, 202 .mask_reg = PM8607_INT_MASK_2, 203 .offs = 1 << 2, 204 }, 205 [PM8607_IRQ_TINT] = { 206 .reg = PM8607_INT_STATUS2, 207 .mask_reg = PM8607_INT_MASK_2, 208 .offs = 1 << 3, 209 }, 210 [PM8607_IRQ_GPADC0] = { 211 .reg = PM8607_INT_STATUS2, 212 .mask_reg = PM8607_INT_MASK_2, 213 .offs = 1 << 4, 214 }, 215 [PM8607_IRQ_GPADC1] = { 216 .reg = PM8607_INT_STATUS2, 217 .mask_reg = PM8607_INT_MASK_2, 218 .offs = 1 << 5, 219 }, 220 [PM8607_IRQ_GPADC2] = { 221 .reg = PM8607_INT_STATUS2, 222 .mask_reg = PM8607_INT_MASK_2, 223 .offs = 1 << 6, 224 }, 225 [PM8607_IRQ_GPADC3] = { 226 .reg = PM8607_INT_STATUS2, 227 .mask_reg = PM8607_INT_MASK_2, 228 .offs = 1 << 7, 229 }, 230 [PM8607_IRQ_AUDIO_SHORT] = { 231 .reg = PM8607_INT_STATUS3, 232 .mask_reg = PM8607_INT_MASK_3, 233 .offs = 1 << 0, 234 }, 235 [PM8607_IRQ_PEN] = { 236 .reg = PM8607_INT_STATUS3, 237 .mask_reg = PM8607_INT_MASK_3, 238 .offs = 1 << 1, 239 }, 240 [PM8607_IRQ_HEADSET] = { 241 .reg = PM8607_INT_STATUS3, 242 .mask_reg = PM8607_INT_MASK_3, 243 .offs = 1 << 2, 244 }, 245 [PM8607_IRQ_HOOK] = { 246 .reg = PM8607_INT_STATUS3, 247 .mask_reg = PM8607_INT_MASK_3, 248 .offs = 1 << 3, 249 }, 250 [PM8607_IRQ_MICIN] = { 251 .reg = PM8607_INT_STATUS3, 252 .mask_reg = PM8607_INT_MASK_3, 253 .offs = 1 << 4, 254 }, 255 [PM8607_IRQ_CHG_FAIL] = { 256 .reg = PM8607_INT_STATUS3, 257 .mask_reg = PM8607_INT_MASK_3, 258 .offs = 1 << 5, 259 }, 260 [PM8607_IRQ_CHG_DONE] = { 261 .reg = PM8607_INT_STATUS3, 262 .mask_reg = PM8607_INT_MASK_3, 263 .offs = 1 << 6, 264 }, 265 [PM8607_IRQ_CHG_FAULT] = { 266 .reg = PM8607_INT_STATUS3, 267 .mask_reg = PM8607_INT_MASK_3, 268 .offs = 1 << 7, 269 }, 270 }; 271 272 static irqreturn_t pm860x_irq(int irq, void *data) 273 { 274 struct pm860x_chip *chip = data; 275 struct pm860x_irq_data *irq_data; 276 struct i2c_client *i2c; 277 int read_reg = -1, value = 0; 278 int i; 279 280 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 281 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 282 irq_data = &pm860x_irqs[i]; 283 if (read_reg != irq_data->reg) { 284 read_reg = irq_data->reg; 285 value = pm860x_reg_read(i2c, irq_data->reg); 286 } 287 if (value & irq_data->enable) 288 handle_nested_irq(chip->irq_base + i); 289 } 290 return IRQ_HANDLED; 291 } 292 293 static void pm860x_irq_lock(struct irq_data *data) 294 { 295 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 296 297 mutex_lock(&chip->irq_lock); 298 } 299 300 static void pm860x_irq_sync_unlock(struct irq_data *data) 301 { 302 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 303 struct pm860x_irq_data *irq_data; 304 struct i2c_client *i2c; 305 static unsigned char cached[3] = {0x0, 0x0, 0x0}; 306 unsigned char mask[3]; 307 int i; 308 309 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 310 /* Load cached value. In initial, all IRQs are masked */ 311 for (i = 0; i < 3; i++) 312 mask[i] = cached[i]; 313 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 314 irq_data = &pm860x_irqs[i]; 315 switch (irq_data->mask_reg) { 316 case PM8607_INT_MASK_1: 317 mask[0] &= ~irq_data->offs; 318 mask[0] |= irq_data->enable; 319 break; 320 case PM8607_INT_MASK_2: 321 mask[1] &= ~irq_data->offs; 322 mask[1] |= irq_data->enable; 323 break; 324 case PM8607_INT_MASK_3: 325 mask[2] &= ~irq_data->offs; 326 mask[2] |= irq_data->enable; 327 break; 328 default: 329 dev_err(chip->dev, "wrong IRQ\n"); 330 break; 331 } 332 } 333 /* update mask into registers */ 334 for (i = 0; i < 3; i++) { 335 if (mask[i] != cached[i]) { 336 cached[i] = mask[i]; 337 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); 338 } 339 } 340 341 mutex_unlock(&chip->irq_lock); 342 } 343 344 static void pm860x_irq_enable(struct irq_data *data) 345 { 346 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 347 pm860x_irqs[data->irq - chip->irq_base].enable 348 = pm860x_irqs[data->irq - chip->irq_base].offs; 349 } 350 351 static void pm860x_irq_disable(struct irq_data *data) 352 { 353 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 354 pm860x_irqs[data->irq - chip->irq_base].enable = 0; 355 } 356 357 static struct irq_chip pm860x_irq_chip = { 358 .name = "88pm860x", 359 .irq_bus_lock = pm860x_irq_lock, 360 .irq_bus_sync_unlock = pm860x_irq_sync_unlock, 361 .irq_enable = pm860x_irq_enable, 362 .irq_disable = pm860x_irq_disable, 363 }; 364 365 static int __devinit device_gpadc_init(struct pm860x_chip *chip, 366 struct pm860x_platform_data *pdata) 367 { 368 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ 369 : chip->companion; 370 int data; 371 int ret; 372 373 /* initialize GPADC without activating it */ 374 375 if (!pdata || !pdata->touch) 376 return -EINVAL; 377 378 /* set GPADC MISC1 register */ 379 data = 0; 380 data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK; 381 data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK; 382 data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK; 383 data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK; 384 if (data) { 385 ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data); 386 if (ret < 0) 387 goto out; 388 } 389 /* set tsi prebias time */ 390 if (pdata->touch->tsi_prebias) { 391 data = pdata->touch->tsi_prebias; 392 ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data); 393 if (ret < 0) 394 goto out; 395 } 396 /* set prebias & prechg time of pen detect */ 397 data = 0; 398 data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK; 399 data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK; 400 if (data) { 401 ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data); 402 if (ret < 0) 403 goto out; 404 } 405 406 ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1, 407 PM8607_GPADC_EN, PM8607_GPADC_EN); 408 out: 409 return ret; 410 } 411 412 static int __devinit device_irq_init(struct pm860x_chip *chip, 413 struct pm860x_platform_data *pdata) 414 { 415 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ 416 : chip->companion; 417 unsigned char status_buf[INT_STATUS_NUM]; 418 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 419 int i, data, mask, ret = -EINVAL; 420 int __irq; 421 422 if (!pdata || !pdata->irq_base) { 423 dev_warn(chip->dev, "No interrupt support on IRQ base\n"); 424 return -EINVAL; 425 } 426 427 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 428 | PM8607_B0_MISC1_INT_MASK; 429 data = 0; 430 chip->irq_mode = 0; 431 if (pdata && pdata->irq_mode) { 432 /* 433 * irq_mode defines the way of clearing interrupt. If it's 1, 434 * clear IRQ by write. Otherwise, clear it by read. 435 * This control bit is valid from 88PM8607 B0 steping. 436 */ 437 data |= PM8607_B0_MISC1_INT_CLEAR; 438 chip->irq_mode = 1; 439 } 440 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 441 if (ret < 0) 442 goto out; 443 444 /* mask all IRQs */ 445 memset(status_buf, 0, INT_STATUS_NUM); 446 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 447 INT_STATUS_NUM, status_buf); 448 if (ret < 0) 449 goto out; 450 451 if (chip->irq_mode) { 452 /* clear interrupt status by write */ 453 memset(status_buf, 0xFF, INT_STATUS_NUM); 454 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 455 INT_STATUS_NUM, status_buf); 456 } else { 457 /* clear interrupt status by read */ 458 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 459 INT_STATUS_NUM, status_buf); 460 } 461 if (ret < 0) 462 goto out; 463 464 mutex_init(&chip->irq_lock); 465 chip->irq_base = pdata->irq_base; 466 chip->core_irq = i2c->irq; 467 if (!chip->core_irq) 468 goto out; 469 470 /* register IRQ by genirq */ 471 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 472 __irq = i + chip->irq_base; 473 set_irq_chip_data(__irq, chip); 474 set_irq_chip_and_handler(__irq, &pm860x_irq_chip, 475 handle_edge_irq); 476 set_irq_nested_thread(__irq, 1); 477 #ifdef CONFIG_ARM 478 set_irq_flags(__irq, IRQF_VALID); 479 #else 480 set_irq_noprobe(__irq); 481 #endif 482 } 483 484 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags, 485 "88pm860x", chip); 486 if (ret) { 487 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 488 chip->core_irq = 0; 489 } 490 491 return 0; 492 out: 493 chip->core_irq = 0; 494 return ret; 495 } 496 497 static void device_irq_exit(struct pm860x_chip *chip) 498 { 499 if (chip->core_irq) 500 free_irq(chip->core_irq, chip); 501 } 502 503 static void __devinit device_bk_init(struct pm860x_chip *chip, 504 struct i2c_client *i2c, 505 struct pm860x_platform_data *pdata) 506 { 507 int ret; 508 int i, j, id; 509 510 if ((pdata == NULL) || (pdata->backlight == NULL)) 511 return; 512 513 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 514 pdata->num_backlights = ARRAY_SIZE(bk_devs); 515 516 for (i = 0; i < pdata->num_backlights; i++) { 517 memcpy(&bk_pdata[i], &pdata->backlight[i], 518 sizeof(struct pm860x_backlight_pdata)); 519 bk_devs[i].mfd_data = &bk_pdata[i]; 520 521 for (j = 0; j < ARRAY_SIZE(bk_devs); j++) { 522 id = bk_resources[j].start; 523 if (bk_pdata[i].flags != id) 524 continue; 525 526 bk_devs[i].num_resources = 1; 527 bk_devs[i].resources = &bk_resources[j]; 528 ret = mfd_add_devices(chip->dev, 0, 529 &bk_devs[i], 1, 530 &bk_resources[j], 0); 531 if (ret < 0) { 532 dev_err(chip->dev, "Failed to add " 533 "backlight subdev\n"); 534 return; 535 } 536 } 537 } 538 } 539 540 static void __devinit device_led_init(struct pm860x_chip *chip, 541 struct i2c_client *i2c, 542 struct pm860x_platform_data *pdata) 543 { 544 int ret; 545 int i, j, id; 546 547 if ((pdata == NULL) || (pdata->led == NULL)) 548 return; 549 550 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 551 pdata->num_leds = ARRAY_SIZE(led_devs); 552 553 for (i = 0; i < pdata->num_leds; i++) { 554 memcpy(&led_pdata[i], &pdata->led[i], 555 sizeof(struct pm860x_led_pdata)); 556 led_devs[i].mfd_data = &led_pdata[i]; 557 558 for (j = 0; j < ARRAY_SIZE(led_devs); j++) { 559 id = led_resources[j].start; 560 if (led_pdata[i].flags != id) 561 continue; 562 563 led_devs[i].num_resources = 1; 564 led_devs[i].resources = &led_resources[j], 565 ret = mfd_add_devices(chip->dev, 0, 566 &led_devs[i], 1, 567 &led_resources[j], 0); 568 if (ret < 0) { 569 dev_err(chip->dev, "Failed to add " 570 "led subdev\n"); 571 return; 572 } 573 } 574 } 575 } 576 577 static void __devinit device_regulator_init(struct pm860x_chip *chip, 578 struct i2c_client *i2c, 579 struct pm860x_platform_data *pdata) 580 { 581 struct regulator_init_data *initdata; 582 int ret; 583 int i, j; 584 585 if ((pdata == NULL) || (pdata->regulator == NULL)) 586 return; 587 588 if (pdata->num_regulators > ARRAY_SIZE(regulator_devs)) 589 pdata->num_regulators = ARRAY_SIZE(regulator_devs); 590 591 for (i = 0, j = -1; i < pdata->num_regulators; i++) { 592 initdata = &pdata->regulator[i]; 593 if (strstr(initdata->constraints.name, "BUCK")) { 594 sscanf(initdata->constraints.name, "BUCK%d", &j); 595 /* BUCK1 ~ BUCK3 */ 596 if ((j < 1) || (j > 3)) { 597 dev_err(chip->dev, "Failed to add constraint " 598 "(%s)\n", initdata->constraints.name); 599 goto out; 600 } 601 j = (j - 1) + PM8607_ID_BUCK1; 602 } 603 if (strstr(initdata->constraints.name, "LDO")) { 604 sscanf(initdata->constraints.name, "LDO%d", &j); 605 /* LDO1 ~ LDO15 */ 606 if ((j < 1) || (j > 15)) { 607 dev_err(chip->dev, "Failed to add constraint " 608 "(%s)\n", initdata->constraints.name); 609 goto out; 610 } 611 j = (j - 1) + PM8607_ID_LDO1; 612 } 613 if (j == -1) { 614 dev_err(chip->dev, "Failed to add constraint (%s)\n", 615 initdata->constraints.name); 616 goto out; 617 } 618 memcpy(®ulator_pdata[i], &pdata->regulator[i], 619 sizeof(struct regulator_init_data)); 620 regulator_devs[i].mfd_data = ®ulator_pdata[i]; 621 regulator_devs[i].num_resources = 1; 622 regulator_devs[i].resources = ®ulator_resources[j]; 623 624 ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[i], 1, 625 ®ulator_resources[j], 0); 626 if (ret < 0) { 627 dev_err(chip->dev, "Failed to add regulator subdev\n"); 628 goto out; 629 } 630 } 631 out: 632 return; 633 } 634 635 static void __devinit device_touch_init(struct pm860x_chip *chip, 636 struct i2c_client *i2c, 637 struct pm860x_platform_data *pdata) 638 { 639 int ret; 640 641 if ((pdata == NULL) || (pdata->touch == NULL)) 642 return; 643 644 memcpy(&touch_pdata, pdata->touch, sizeof(struct pm860x_touch_pdata)); 645 touch_devs[0].mfd_data = &touch_pdata; 646 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 647 touch_devs[0].resources = &touch_resources[0]; 648 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 649 ARRAY_SIZE(touch_devs), &touch_resources[0], 650 chip->irq_base); 651 if (ret < 0) 652 dev_err(chip->dev, "Failed to add touch subdev\n"); 653 } 654 655 static void __devinit device_power_init(struct pm860x_chip *chip, 656 struct i2c_client *i2c, 657 struct pm860x_platform_data *pdata) 658 { 659 int ret; 660 661 if ((pdata == NULL) || (pdata->power == NULL)) 662 return; 663 664 memcpy(&power_pdata, pdata->power, sizeof(struct pm860x_power_pdata)); 665 power_devs[0].mfd_data = &power_pdata; 666 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 667 power_devs[0].resources = &battery_resources[0], 668 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 669 &battery_resources[0], chip->irq_base); 670 if (ret < 0) 671 dev_err(chip->dev, "Failed to add battery subdev\n"); 672 673 power_devs[1].mfd_data = &power_pdata; 674 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 675 power_devs[1].resources = &charger_resources[0], 676 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 677 &charger_resources[0], chip->irq_base); 678 if (ret < 0) 679 dev_err(chip->dev, "Failed to add charger subdev\n"); 680 } 681 682 static void __devinit device_onkey_init(struct pm860x_chip *chip, 683 struct i2c_client *i2c, 684 struct pm860x_platform_data *pdata) 685 { 686 int ret; 687 688 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 689 onkey_devs[0].resources = &onkey_resources[0], 690 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 691 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 692 chip->irq_base); 693 if (ret < 0) 694 dev_err(chip->dev, "Failed to add onkey subdev\n"); 695 } 696 697 static void __devinit device_codec_init(struct pm860x_chip *chip, 698 struct i2c_client *i2c, 699 struct pm860x_platform_data *pdata) 700 { 701 int ret; 702 703 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 704 codec_devs[0].resources = &codec_resources[0], 705 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 706 ARRAY_SIZE(codec_devs), &codec_resources[0], 0); 707 if (ret < 0) 708 dev_err(chip->dev, "Failed to add codec subdev\n"); 709 } 710 711 static void __devinit device_8607_init(struct pm860x_chip *chip, 712 struct i2c_client *i2c, 713 struct pm860x_platform_data *pdata) 714 { 715 int data, ret; 716 717 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 718 if (ret < 0) { 719 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 720 goto out; 721 } 722 switch (ret & PM8607_VERSION_MASK) { 723 case 0x40: 724 case 0x50: 725 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 726 ret); 727 break; 728 default: 729 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. " 730 "Chip ID: %02x\n", ret); 731 goto out; 732 } 733 734 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 735 if (ret < 0) { 736 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 737 goto out; 738 } 739 if (ret & PM8607_BUCK3_DOUBLE) 740 chip->buck3_double = 1; 741 742 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 743 if (ret < 0) { 744 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 745 goto out; 746 } 747 748 if (pdata && (pdata->i2c_port == PI2C_PORT)) 749 data = PM8607_B0_MISC1_PI2C; 750 else 751 data = 0; 752 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 753 if (ret < 0) { 754 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 755 goto out; 756 } 757 758 ret = device_gpadc_init(chip, pdata); 759 if (ret < 0) 760 goto out; 761 762 ret = device_irq_init(chip, pdata); 763 if (ret < 0) 764 goto out; 765 766 device_regulator_init(chip, i2c, pdata); 767 device_onkey_init(chip, i2c, pdata); 768 device_touch_init(chip, i2c, pdata); 769 device_power_init(chip, i2c, pdata); 770 device_codec_init(chip, i2c, pdata); 771 out: 772 return; 773 } 774 775 int __devinit pm860x_device_init(struct pm860x_chip *chip, 776 struct pm860x_platform_data *pdata) 777 { 778 chip->core_irq = 0; 779 780 switch (chip->id) { 781 case CHIP_PM8606: 782 device_bk_init(chip, chip->client, pdata); 783 device_led_init(chip, chip->client, pdata); 784 break; 785 case CHIP_PM8607: 786 device_8607_init(chip, chip->client, pdata); 787 break; 788 } 789 790 if (chip->companion) { 791 switch (chip->id) { 792 case CHIP_PM8607: 793 device_bk_init(chip, chip->companion, pdata); 794 device_led_init(chip, chip->companion, pdata); 795 break; 796 case CHIP_PM8606: 797 device_8607_init(chip, chip->companion, pdata); 798 break; 799 } 800 } 801 802 return 0; 803 } 804 805 void __devexit pm860x_device_exit(struct pm860x_chip *chip) 806 { 807 device_irq_exit(chip); 808 mfd_remove_devices(chip->dev); 809 } 810 811 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 812 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 813 MODULE_LICENSE("GPL"); 814