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 struct irq_desc *desc; 420 int i, data, mask, ret = -EINVAL; 421 int __irq; 422 423 if (!pdata || !pdata->irq_base) { 424 dev_warn(chip->dev, "No interrupt support on IRQ base\n"); 425 return -EINVAL; 426 } 427 428 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 429 | PM8607_B0_MISC1_INT_MASK; 430 data = 0; 431 chip->irq_mode = 0; 432 if (pdata && pdata->irq_mode) { 433 /* 434 * irq_mode defines the way of clearing interrupt. If it's 1, 435 * clear IRQ by write. Otherwise, clear it by read. 436 * This control bit is valid from 88PM8607 B0 steping. 437 */ 438 data |= PM8607_B0_MISC1_INT_CLEAR; 439 chip->irq_mode = 1; 440 } 441 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 442 if (ret < 0) 443 goto out; 444 445 /* mask all IRQs */ 446 memset(status_buf, 0, INT_STATUS_NUM); 447 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 448 INT_STATUS_NUM, status_buf); 449 if (ret < 0) 450 goto out; 451 452 if (chip->irq_mode) { 453 /* clear interrupt status by write */ 454 memset(status_buf, 0xFF, INT_STATUS_NUM); 455 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 456 INT_STATUS_NUM, status_buf); 457 } else { 458 /* clear interrupt status by read */ 459 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 460 INT_STATUS_NUM, status_buf); 461 } 462 if (ret < 0) 463 goto out; 464 465 mutex_init(&chip->irq_lock); 466 chip->irq_base = pdata->irq_base; 467 chip->core_irq = i2c->irq; 468 if (!chip->core_irq) 469 goto out; 470 471 desc = irq_to_desc(chip->core_irq); 472 473 /* register IRQ by genirq */ 474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 475 __irq = i + chip->irq_base; 476 set_irq_chip_data(__irq, chip); 477 set_irq_chip_and_handler(__irq, &pm860x_irq_chip, 478 handle_edge_irq); 479 set_irq_nested_thread(__irq, 1); 480 #ifdef CONFIG_ARM 481 set_irq_flags(__irq, IRQF_VALID); 482 #else 483 set_irq_noprobe(__irq); 484 #endif 485 } 486 487 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags, 488 "88pm860x", chip); 489 if (ret) { 490 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 491 chip->core_irq = 0; 492 } 493 494 return 0; 495 out: 496 chip->core_irq = 0; 497 return ret; 498 } 499 500 static void device_irq_exit(struct pm860x_chip *chip) 501 { 502 if (chip->core_irq) 503 free_irq(chip->core_irq, chip); 504 } 505 506 static void __devinit device_bk_init(struct pm860x_chip *chip, 507 struct i2c_client *i2c, 508 struct pm860x_platform_data *pdata) 509 { 510 int ret; 511 int i, j, id; 512 513 if ((pdata == NULL) || (pdata->backlight == NULL)) 514 return; 515 516 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 517 pdata->num_backlights = ARRAY_SIZE(bk_devs); 518 519 for (i = 0; i < pdata->num_backlights; i++) { 520 memcpy(&bk_pdata[i], &pdata->backlight[i], 521 sizeof(struct pm860x_backlight_pdata)); 522 bk_devs[i].mfd_data = &bk_pdata[i]; 523 524 for (j = 0; j < ARRAY_SIZE(bk_devs); j++) { 525 id = bk_resources[j].start; 526 if (bk_pdata[i].flags != id) 527 continue; 528 529 bk_devs[i].num_resources = 1; 530 bk_devs[i].resources = &bk_resources[j]; 531 ret = mfd_add_devices(chip->dev, 0, 532 &bk_devs[i], 1, 533 &bk_resources[j], 0); 534 if (ret < 0) { 535 dev_err(chip->dev, "Failed to add " 536 "backlight subdev\n"); 537 return; 538 } 539 } 540 } 541 } 542 543 static void __devinit device_led_init(struct pm860x_chip *chip, 544 struct i2c_client *i2c, 545 struct pm860x_platform_data *pdata) 546 { 547 int ret; 548 int i, j, id; 549 550 if ((pdata == NULL) || (pdata->led == NULL)) 551 return; 552 553 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 554 pdata->num_leds = ARRAY_SIZE(led_devs); 555 556 for (i = 0; i < pdata->num_leds; i++) { 557 memcpy(&led_pdata[i], &pdata->led[i], 558 sizeof(struct pm860x_led_pdata)); 559 led_devs[i].mfd_data = &led_pdata[i]; 560 561 for (j = 0; j < ARRAY_SIZE(led_devs); j++) { 562 id = led_resources[j].start; 563 if (led_pdata[i].flags != id) 564 continue; 565 566 led_devs[i].num_resources = 1; 567 led_devs[i].resources = &led_resources[j], 568 ret = mfd_add_devices(chip->dev, 0, 569 &led_devs[i], 1, 570 &led_resources[j], 0); 571 if (ret < 0) { 572 dev_err(chip->dev, "Failed to add " 573 "led subdev\n"); 574 return; 575 } 576 } 577 } 578 } 579 580 static void __devinit device_regulator_init(struct pm860x_chip *chip, 581 struct i2c_client *i2c, 582 struct pm860x_platform_data *pdata) 583 { 584 struct regulator_init_data *initdata; 585 int ret; 586 int i, j; 587 588 if ((pdata == NULL) || (pdata->regulator == NULL)) 589 return; 590 591 if (pdata->num_regulators > ARRAY_SIZE(regulator_devs)) 592 pdata->num_regulators = ARRAY_SIZE(regulator_devs); 593 594 for (i = 0, j = -1; i < pdata->num_regulators; i++) { 595 initdata = &pdata->regulator[i]; 596 if (strstr(initdata->constraints.name, "BUCK")) { 597 sscanf(initdata->constraints.name, "BUCK%d", &j); 598 /* BUCK1 ~ BUCK3 */ 599 if ((j < 1) || (j > 3)) { 600 dev_err(chip->dev, "Failed to add constraint " 601 "(%s)\n", initdata->constraints.name); 602 goto out; 603 } 604 j = (j - 1) + PM8607_ID_BUCK1; 605 } 606 if (strstr(initdata->constraints.name, "LDO")) { 607 sscanf(initdata->constraints.name, "LDO%d", &j); 608 /* LDO1 ~ LDO15 */ 609 if ((j < 1) || (j > 15)) { 610 dev_err(chip->dev, "Failed to add constraint " 611 "(%s)\n", initdata->constraints.name); 612 goto out; 613 } 614 j = (j - 1) + PM8607_ID_LDO1; 615 } 616 if (j == -1) { 617 dev_err(chip->dev, "Failed to add constraint (%s)\n", 618 initdata->constraints.name); 619 goto out; 620 } 621 memcpy(®ulator_pdata[i], &pdata->regulator[i], 622 sizeof(struct regulator_init_data)); 623 regulator_devs[i].mfd_data = ®ulator_pdata[i]; 624 regulator_devs[i].num_resources = 1; 625 regulator_devs[i].resources = ®ulator_resources[j]; 626 627 ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[i], 1, 628 ®ulator_resources[j], 0); 629 if (ret < 0) { 630 dev_err(chip->dev, "Failed to add regulator subdev\n"); 631 goto out; 632 } 633 } 634 out: 635 return; 636 } 637 638 static void __devinit device_touch_init(struct pm860x_chip *chip, 639 struct i2c_client *i2c, 640 struct pm860x_platform_data *pdata) 641 { 642 int ret; 643 644 if ((pdata == NULL) || (pdata->touch == NULL)) 645 return; 646 647 memcpy(&touch_pdata, pdata->touch, sizeof(struct pm860x_touch_pdata)); 648 touch_devs[0].mfd_data = &touch_pdata; 649 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 650 touch_devs[0].resources = &touch_resources[0]; 651 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 652 ARRAY_SIZE(touch_devs), &touch_resources[0], 653 chip->irq_base); 654 if (ret < 0) 655 dev_err(chip->dev, "Failed to add touch subdev\n"); 656 } 657 658 static void __devinit device_power_init(struct pm860x_chip *chip, 659 struct i2c_client *i2c, 660 struct pm860x_platform_data *pdata) 661 { 662 int ret; 663 664 if ((pdata == NULL) || (pdata->power == NULL)) 665 return; 666 667 memcpy(&power_pdata, pdata->power, sizeof(struct pm860x_power_pdata)); 668 power_devs[0].mfd_data = &power_pdata; 669 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 670 power_devs[0].resources = &battery_resources[0], 671 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 672 &battery_resources[0], chip->irq_base); 673 if (ret < 0) 674 dev_err(chip->dev, "Failed to add battery subdev\n"); 675 676 power_devs[1].mfd_data = &power_pdata; 677 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 678 power_devs[1].resources = &charger_resources[0], 679 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 680 &charger_resources[0], chip->irq_base); 681 if (ret < 0) 682 dev_err(chip->dev, "Failed to add charger subdev\n"); 683 } 684 685 static void __devinit device_onkey_init(struct pm860x_chip *chip, 686 struct i2c_client *i2c, 687 struct pm860x_platform_data *pdata) 688 { 689 int ret; 690 691 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 692 onkey_devs[0].resources = &onkey_resources[0], 693 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 694 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 695 chip->irq_base); 696 if (ret < 0) 697 dev_err(chip->dev, "Failed to add onkey subdev\n"); 698 } 699 700 static void __devinit device_codec_init(struct pm860x_chip *chip, 701 struct i2c_client *i2c, 702 struct pm860x_platform_data *pdata) 703 { 704 int ret; 705 706 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 707 codec_devs[0].resources = &codec_resources[0], 708 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 709 ARRAY_SIZE(codec_devs), &codec_resources[0], 0); 710 if (ret < 0) 711 dev_err(chip->dev, "Failed to add codec subdev\n"); 712 } 713 714 static void __devinit device_8607_init(struct pm860x_chip *chip, 715 struct i2c_client *i2c, 716 struct pm860x_platform_data *pdata) 717 { 718 int data, ret; 719 720 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 721 if (ret < 0) { 722 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 723 goto out; 724 } 725 switch (ret & PM8607_VERSION_MASK) { 726 case 0x40: 727 case 0x50: 728 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 729 ret); 730 break; 731 default: 732 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. " 733 "Chip ID: %02x\n", ret); 734 goto out; 735 } 736 737 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 738 if (ret < 0) { 739 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 740 goto out; 741 } 742 if (ret & PM8607_BUCK3_DOUBLE) 743 chip->buck3_double = 1; 744 745 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 746 if (ret < 0) { 747 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 748 goto out; 749 } 750 751 if (pdata && (pdata->i2c_port == PI2C_PORT)) 752 data = PM8607_B0_MISC1_PI2C; 753 else 754 data = 0; 755 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 756 if (ret < 0) { 757 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 758 goto out; 759 } 760 761 ret = device_gpadc_init(chip, pdata); 762 if (ret < 0) 763 goto out; 764 765 ret = device_irq_init(chip, pdata); 766 if (ret < 0) 767 goto out; 768 769 device_regulator_init(chip, i2c, pdata); 770 device_onkey_init(chip, i2c, pdata); 771 device_touch_init(chip, i2c, pdata); 772 device_power_init(chip, i2c, pdata); 773 device_codec_init(chip, i2c, pdata); 774 out: 775 return; 776 } 777 778 int __devinit pm860x_device_init(struct pm860x_chip *chip, 779 struct pm860x_platform_data *pdata) 780 { 781 chip->core_irq = 0; 782 783 switch (chip->id) { 784 case CHIP_PM8606: 785 device_bk_init(chip, chip->client, pdata); 786 device_led_init(chip, chip->client, pdata); 787 break; 788 case CHIP_PM8607: 789 device_8607_init(chip, chip->client, pdata); 790 break; 791 } 792 793 if (chip->companion) { 794 switch (chip->id) { 795 case CHIP_PM8607: 796 device_bk_init(chip, chip->companion, pdata); 797 device_led_init(chip, chip->companion, pdata); 798 break; 799 case CHIP_PM8606: 800 device_8607_init(chip, chip->companion, pdata); 801 break; 802 } 803 } 804 805 return 0; 806 } 807 808 void __devexit pm860x_device_exit(struct pm860x_chip *chip) 809 { 810 device_irq_exit(chip); 811 mfd_remove_devices(chip->dev); 812 } 813 814 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 815 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 816 MODULE_LICENSE("GPL"); 817