drivers/mfd/88pm860x-core.c

   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[] __devinitdata = {
  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[] __devinitdata = {
  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[] __devinitdata = {
  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[] __devinitdata = {
  61         {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
  62 };
  63
  64 static struct resource onkey_resources[] __devinitdata = {
  65         {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
  66 };
  67
  68 static struct resource codec_resources[] __devinitdata = {
  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[] __devinitdata = {
  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[] __devinitdata = {
  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 resource rtc_resources[] __devinitdata = {
  94         {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
  95 };
  96
  97 static struct mfd_cell bk_devs[] = {
  98         {"88pm860x-backlight", 0,},
  99         {"88pm860x-backlight", 1,},
 100         {"88pm860x-backlight", 2,},
 101 };
 102
 103 static struct mfd_cell led_devs[] = {
 104         {"88pm860x-led", 0,},
 105         {"88pm860x-led", 1,},
 106         {"88pm860x-led", 2,},
 107         {"88pm860x-led", 3,},
 108         {"88pm860x-led", 4,},
 109         {"88pm860x-led", 5,},
 110 };
 111
 112 static struct mfd_cell regulator_devs[] = {
 113         {"88pm860x-regulator", 0,},
 114         {"88pm860x-regulator", 1,},
 115         {"88pm860x-regulator", 2,},
 116         {"88pm860x-regulator", 3,},
 117         {"88pm860x-regulator", 4,},
 118         {"88pm860x-regulator", 5,},
 119         {"88pm860x-regulator", 6,},
 120         {"88pm860x-regulator", 7,},
 121         {"88pm860x-regulator", 8,},
 122         {"88pm860x-regulator", 9,},
 123         {"88pm860x-regulator", 10,},
 124         {"88pm860x-regulator", 11,},
 125         {"88pm860x-regulator", 12,},
 126         {"88pm860x-regulator", 13,},
 127         {"88pm860x-regulator", 14,},
 128         {"88pm860x-regulator", 15,},
 129         {"88pm860x-regulator", 16,},
 130         {"88pm860x-regulator", 17,},
 131 };
 132
 133 static struct mfd_cell touch_devs[] = {
 134         {"88pm860x-touch", -1,},
 135 };
 136
 137 static struct mfd_cell onkey_devs[] = {
 138         {"88pm860x-onkey", -1,},
 139 };
 140
 141 static struct mfd_cell codec_devs[] = {
 142         {"88pm860x-codec", -1,},
 143 };
 144
 145 static struct mfd_cell power_devs[] = {
 146         {"88pm860x-battery", -1,},
 147         {"88pm860x-charger", -1,},
 148 };
 149
 150 static struct mfd_cell rtc_devs[] = {
 151         {"88pm860x-rtc", -1,},
 152 };
 153
 154 static struct pm860x_backlight_pdata bk_pdata[ARRAY_SIZE(bk_devs)];
 155 static struct pm860x_led_pdata led_pdata[ARRAY_SIZE(led_devs)];
 156 static struct regulator_init_data regulator_pdata[ARRAY_SIZE(regulator_devs)];
 157 static struct pm860x_touch_pdata touch_pdata;
 158 static struct pm860x_power_pdata power_pdata;
 159
 160 struct pm860x_irq_data {
 161         int     reg;
 162         int     mask_reg;
 163         int     enable;         /* enable or not */
 164         int     offs;           /* bit offset in mask register */
 165 };
 166
 167 static struct pm860x_irq_data pm860x_irqs[] = {
 168         [PM8607_IRQ_ONKEY] = {
 169                 .reg            = PM8607_INT_STATUS1,
 170                 .mask_reg       = PM8607_INT_MASK_1,
 171                 .offs           = 1 << 0,
 172         },
 173         [PM8607_IRQ_EXTON] = {
 174                 .reg            = PM8607_INT_STATUS1,
 175                 .mask_reg       = PM8607_INT_MASK_1,
 176                 .offs           = 1 << 1,
 177         },
 178         [PM8607_IRQ_CHG] = {
 179                 .reg            = PM8607_INT_STATUS1,
 180                 .mask_reg       = PM8607_INT_MASK_1,
 181                 .offs           = 1 << 2,
 182         },
 183         [PM8607_IRQ_BAT] = {
 184                 .reg            = PM8607_INT_STATUS1,
 185                 .mask_reg       = PM8607_INT_MASK_1,
 186                 .offs           = 1 << 3,
 187         },
 188         [PM8607_IRQ_RTC] = {
 189                 .reg            = PM8607_INT_STATUS1,
 190                 .mask_reg       = PM8607_INT_MASK_1,
 191                 .offs           = 1 << 4,
 192         },
 193         [PM8607_IRQ_CC] = {
 194                 .reg            = PM8607_INT_STATUS1,
 195                 .mask_reg       = PM8607_INT_MASK_1,
 196                 .offs           = 1 << 5,
 197         },
 198         [PM8607_IRQ_VBAT] = {
 199                 .reg            = PM8607_INT_STATUS2,
 200                 .mask_reg       = PM8607_INT_MASK_2,
 201                 .offs           = 1 << 0,
 202         },
 203         [PM8607_IRQ_VCHG] = {
 204                 .reg            = PM8607_INT_STATUS2,
 205                 .mask_reg       = PM8607_INT_MASK_2,
 206                 .offs           = 1 << 1,
 207         },
 208         [PM8607_IRQ_VSYS] = {
 209                 .reg            = PM8607_INT_STATUS2,
 210                 .mask_reg       = PM8607_INT_MASK_2,
 211                 .offs           = 1 << 2,
 212         },
 213         [PM8607_IRQ_TINT] = {
 214                 .reg            = PM8607_INT_STATUS2,
 215                 .mask_reg       = PM8607_INT_MASK_2,
 216                 .offs           = 1 << 3,
 217         },
 218         [PM8607_IRQ_GPADC0] = {
 219                 .reg            = PM8607_INT_STATUS2,
 220                 .mask_reg       = PM8607_INT_MASK_2,
 221                 .offs           = 1 << 4,
 222         },
 223         [PM8607_IRQ_GPADC1] = {
 224                 .reg            = PM8607_INT_STATUS2,
 225                 .mask_reg       = PM8607_INT_MASK_2,
 226                 .offs           = 1 << 5,
 227         },
 228         [PM8607_IRQ_GPADC2] = {
 229                 .reg            = PM8607_INT_STATUS2,
 230                 .mask_reg       = PM8607_INT_MASK_2,
 231                 .offs           = 1 << 6,
 232         },
 233         [PM8607_IRQ_GPADC3] = {
 234                 .reg            = PM8607_INT_STATUS2,
 235                 .mask_reg       = PM8607_INT_MASK_2,
 236                 .offs           = 1 << 7,
 237         },
 238         [PM8607_IRQ_AUDIO_SHORT] = {
 239                 .reg            = PM8607_INT_STATUS3,
 240                 .mask_reg       = PM8607_INT_MASK_3,
 241                 .offs           = 1 << 0,
 242         },
 243         [PM8607_IRQ_PEN] = {
 244                 .reg            = PM8607_INT_STATUS3,
 245                 .mask_reg       = PM8607_INT_MASK_3,
 246                 .offs           = 1 << 1,
 247         },
 248         [PM8607_IRQ_HEADSET] = {
 249                 .reg            = PM8607_INT_STATUS3,
 250                 .mask_reg       = PM8607_INT_MASK_3,
 251                 .offs           = 1 << 2,
 252         },
 253         [PM8607_IRQ_HOOK] = {
 254                 .reg            = PM8607_INT_STATUS3,
 255                 .mask_reg       = PM8607_INT_MASK_3,
 256                 .offs           = 1 << 3,
 257         },
 258         [PM8607_IRQ_MICIN] = {
 259                 .reg            = PM8607_INT_STATUS3,
 260                 .mask_reg       = PM8607_INT_MASK_3,
 261                 .offs           = 1 << 4,
 262         },
 263         [PM8607_IRQ_CHG_FAIL] = {
 264                 .reg            = PM8607_INT_STATUS3,
 265                 .mask_reg       = PM8607_INT_MASK_3,
 266                 .offs           = 1 << 5,
 267         },
 268         [PM8607_IRQ_CHG_DONE] = {
 269                 .reg            = PM8607_INT_STATUS3,
 270                 .mask_reg       = PM8607_INT_MASK_3,
 271                 .offs           = 1 << 6,
 272         },
 273         [PM8607_IRQ_CHG_FAULT] = {
 274                 .reg            = PM8607_INT_STATUS3,
 275                 .mask_reg       = PM8607_INT_MASK_3,
 276                 .offs           = 1 << 7,
 277         },
 278 };
 279
 280 static irqreturn_t pm860x_irq(int irq, void *data)
 281 {
 282         struct pm860x_chip *chip = data;
 283         struct pm860x_irq_data *irq_data;
 284         struct i2c_client *i2c;
 285         int read_reg = -1, value = 0;
 286         int i;
 287
 288         i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
 289         for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 290                 irq_data = &pm860x_irqs[i];
 291                 if (read_reg != irq_data->reg) {
 292                         read_reg = irq_data->reg;
 293                         value = pm860x_reg_read(i2c, irq_data->reg);
 294                 }
 295                 if (value & irq_data->enable)
 296                         handle_nested_irq(chip->irq_base + i);
 297         }
 298         return IRQ_HANDLED;
 299 }
 300
 301 static void pm860x_irq_lock(struct irq_data *data)
 302 {
 303         struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 304
 305         mutex_lock(&chip->irq_lock);
 306 }
 307
 308 static void pm860x_irq_sync_unlock(struct irq_data *data)
 309 {
 310         struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 311         struct pm860x_irq_data *irq_data;
 312         struct i2c_client *i2c;
 313         static unsigned char cached[3] = {0x0, 0x0, 0x0};
 314         unsigned char mask[3];
 315         int i;
 316
 317         i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
 318         /* Load cached value. In initial, all IRQs are masked */
 319         for (i = 0; i < 3; i++)
 320                 mask[i] = cached[i];
 321         for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 322                 irq_data = &pm860x_irqs[i];
 323                 switch (irq_data->mask_reg) {
 324                 case PM8607_INT_MASK_1:
 325                         mask[0] &= ~irq_data->offs;
 326                         mask[0] |= irq_data->enable;
 327                         break;
 328                 case PM8607_INT_MASK_2:
 329                         mask[1] &= ~irq_data->offs;
 330                         mask[1] |= irq_data->enable;
 331                         break;
 332                 case PM8607_INT_MASK_3:
 333                         mask[2] &= ~irq_data->offs;
 334                         mask[2] |= irq_data->enable;
 335                         break;
 336                 default:
 337                         dev_err(chip->dev, "wrong IRQ\n");
 338                         break;
 339                 }
 340         }
 341         /* update mask into registers */
 342         for (i = 0; i < 3; i++) {
 343                 if (mask[i] != cached[i]) {
 344                         cached[i] = mask[i];
 345                         pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
 346                 }
 347         }
 348
 349         mutex_unlock(&chip->irq_lock);
 350 }
 351
 352 static void pm860x_irq_enable(struct irq_data *data)
 353 {
 354         struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 355         pm860x_irqs[data->irq - chip->irq_base].enable
 356                 = pm860x_irqs[data->irq - chip->irq_base].offs;
 357 }
 358
 359 static void pm860x_irq_disable(struct irq_data *data)
 360 {
 361         struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 362         pm860x_irqs[data->irq - chip->irq_base].enable = 0;
 363 }
 364
 365 static struct irq_chip pm860x_irq_chip = {
 366         .name           = "88pm860x",
 367         .irq_bus_lock   = pm860x_irq_lock,
 368         .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
 369         .irq_enable     = pm860x_irq_enable,
 370         .irq_disable    = pm860x_irq_disable,
 371 };
 372
 373 static int __devinit device_gpadc_init(struct pm860x_chip *chip,
 374                                        struct pm860x_platform_data *pdata)
 375 {
 376         struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
 377                                 : chip->companion;
 378         int data;
 379         int ret;
 380
 381         /* initialize GPADC without activating it */
 382
 383         if (!pdata || !pdata->touch)
 384                 return -EINVAL;
 385
 386         /* set GPADC MISC1 register */
 387         data = 0;
 388         data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK;
 389         data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;
 390         data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK;
 391         data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK;
 392         if (data) {
 393                 ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
 394                 if (ret < 0)
 395                         goto out;
 396         }
 397         /* set tsi prebias time */
 398         if (pdata->touch->tsi_prebias) {
 399                 data = pdata->touch->tsi_prebias;
 400                 ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
 401                 if (ret < 0)
 402                         goto out;
 403         }
 404         /* set prebias & prechg time of pen detect */
 405         data = 0;
 406         data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK;
 407         data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK;
 408         if (data) {
 409                 ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
 410                 if (ret < 0)
 411                         goto out;
 412         }
 413
 414         ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1,
 415                               PM8607_GPADC_EN, PM8607_GPADC_EN);
 416 out:
 417         return ret;
 418 }
 419
 420 static int __devinit device_irq_init(struct pm860x_chip *chip,
 421                                      struct pm860x_platform_data *pdata)
 422 {
 423         struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
 424                                 : chip->companion;
 425         unsigned char status_buf[INT_STATUS_NUM];
 426         unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
 427         int i, data, mask, ret = -EINVAL;
 428         int __irq;
 429
 430         if (!pdata || !pdata->irq_base) {
 431                 dev_warn(chip->dev, "No interrupt support on IRQ base\n");
 432                 return -EINVAL;
 433         }
 434
 435         mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
 436                 | PM8607_B0_MISC1_INT_MASK;
 437         data = 0;
 438         chip->irq_mode = 0;
 439         if (pdata && pdata->irq_mode) {
 440                 /*
 441                  * irq_mode defines the way of clearing interrupt. If it's 1,
 442                  * clear IRQ by write. Otherwise, clear it by read.
 443                  * This control bit is valid from 88PM8607 B0 steping.
 444                  */
 445                 data |= PM8607_B0_MISC1_INT_CLEAR;
 446                 chip->irq_mode = 1;
 447         }
 448         ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
 449         if (ret < 0)
 450                 goto out;
 451
 452         /* mask all IRQs */
 453         memset(status_buf, 0, INT_STATUS_NUM);
 454         ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
 455                                 INT_STATUS_NUM, status_buf);
 456         if (ret < 0)
 457                 goto out;
 458
 459         if (chip->irq_mode) {
 460                 /* clear interrupt status by write */
 461                 memset(status_buf, 0xFF, INT_STATUS_NUM);
 462                 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
 463                                         INT_STATUS_NUM, status_buf);
 464         } else {
 465                 /* clear interrupt status by read */
 466                 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
 467                                         INT_STATUS_NUM, status_buf);
 468         }
 469         if (ret < 0)
 470                 goto out;
 471
 472         mutex_init(&chip->irq_lock);
 473         chip->irq_base = pdata->irq_base;
 474         chip->core_irq = i2c->irq;
 475         if (!chip->core_irq)
 476                 goto out;
 477
 478         /* register IRQ by genirq */
 479         for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 480                 __irq = i + chip->irq_base;
 481                 irq_set_chip_data(__irq, chip);
 482                 irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
 483                                          handle_edge_irq);
 484                 irq_set_nested_thread(__irq, 1);
 485 #ifdef CONFIG_ARM
 486                 set_irq_flags(__irq, IRQF_VALID);
 487 #else
 488                 irq_set_noprobe(__irq);
 489 #endif
 490         }
 491
 492         ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags,
 493                                    "88pm860x", chip);
 494         if (ret) {
 495                 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
 496                 chip->core_irq = 0;
 497         }
 498
 499         return 0;
 500 out:
 501         chip->core_irq = 0;
 502         return ret;
 503 }
 504
 505 static void device_irq_exit(struct pm860x_chip *chip)
 506 {
 507         if (chip->core_irq)
 508                 free_irq(chip->core_irq, chip);
 509 }
 510
 511 static void __devinit device_bk_init(struct pm860x_chip *chip,
 512                                      struct i2c_client *i2c,
 513                                      struct pm860x_platform_data *pdata)
 514 {
 515         int ret;
 516         int i, j, id;
 517
 518         if ((pdata == NULL) || (pdata->backlight == NULL))
 519                 return;
 520
 521         if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
 522                 pdata->num_backlights = ARRAY_SIZE(bk_devs);
 523
 524         for (i = 0; i < pdata->num_backlights; i++) {
 525                 memcpy(&bk_pdata[i], &pdata->backlight[i],
 526                         sizeof(struct pm860x_backlight_pdata));
 527                 bk_devs[i].platform_data = &bk_pdata[i];
 528                 bk_devs[i].pdata_size = sizeof(bk_pdata[i]);
 529
 530                 for (j = 0; j < ARRAY_SIZE(bk_devs); j++) {
 531                         id = bk_resources[j].start;
 532                         if (bk_pdata[i].flags != id)
 533                                 continue;
 534
 535                         bk_devs[i].num_resources = 1;
 536                         bk_devs[i].resources = &bk_resources[j];
 537                         ret = mfd_add_devices(chip->dev, 0,
 538                                               &bk_devs[i], 1,
 539                                               &bk_resources[j], 0);
 540                         if (ret < 0) {
 541                                 dev_err(chip->dev, "Failed to add "
 542                                         "backlight subdev\n");
 543                                 return;
 544                         }
 545                 }
 546         }
 547 }
 548
 549 static void __devinit device_led_init(struct pm860x_chip *chip,
 550                                       struct i2c_client *i2c,
 551                                       struct pm860x_platform_data *pdata)
 552 {
 553         int ret;
 554         int i, j, id;
 555
 556         if ((pdata == NULL) || (pdata->led == NULL))
 557                 return;
 558
 559         if (pdata->num_leds > ARRAY_SIZE(led_devs))
 560                 pdata->num_leds = ARRAY_SIZE(led_devs);
 561
 562         for (i = 0; i < pdata->num_leds; i++) {
 563                 memcpy(&led_pdata[i], &pdata->led[i],
 564                         sizeof(struct pm860x_led_pdata));
 565                 led_devs[i].platform_data = &led_pdata[i];
 566                 led_devs[i].pdata_size = sizeof(led_pdata[i]);
 567
 568                 for (j = 0; j < ARRAY_SIZE(led_devs); j++) {
 569                         id = led_resources[j].start;
 570                         if (led_pdata[i].flags != id)
 571                                 continue;
 572
 573                         led_devs[i].num_resources = 1;
 574                         led_devs[i].resources = &led_resources[j],
 575                         ret = mfd_add_devices(chip->dev, 0,
 576                                               &led_devs[i], 1,
 577                                               &led_resources[j], 0);
 578                         if (ret < 0) {
 579                                 dev_err(chip->dev, "Failed to add "
 580                                         "led subdev\n");
 581                                 return;
 582                         }
 583                 }
 584         }
 585 }
 586
 587 static void __devinit device_regulator_init(struct pm860x_chip *chip,
 588                                             struct i2c_client *i2c,
 589                                             struct pm860x_platform_data *pdata)
 590 {
 591         struct regulator_init_data *initdata;
 592         int ret;
 593         int i, j;
 594
 595         if ((pdata == NULL) || (pdata->regulator == NULL))
 596                 return;
 597
 598         if (pdata->num_regulators > ARRAY_SIZE(regulator_devs))
 599                 pdata->num_regulators = ARRAY_SIZE(regulator_devs);
 600
 601         for (i = 0, j = -1; i < pdata->num_regulators; i++) {
 602                 initdata = &pdata->regulator[i];
 603                 if (strstr(initdata->constraints.name, "BUCK")) {
 604                         sscanf(initdata->constraints.name, "BUCK%d", &j);
 605                         /* BUCK1 ~ BUCK3 */
 606                         if ((j < 1) || (j > 3)) {
 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_BUCK1;
 612                 }
 613                 if (strstr(initdata->constraints.name, "LDO")) {
 614                         sscanf(initdata->constraints.name, "LDO%d", &j);
 615                         /* LDO1 ~ LDO15 */
 616                         if ((j < 1) || (j > 15)) {
 617                                 dev_err(chip->dev, "Failed to add constraint "
 618                                         "(%s)\n", initdata->constraints.name);
 619                                 goto out;
 620                         }
 621                         j = (j - 1) + PM8607_ID_LDO1;
 622                 }
 623                 if (j == -1) {
 624                         dev_err(chip->dev, "Failed to add constraint (%s)\n",
 625                                 initdata->constraints.name);
 626                         goto out;
 627                 }
 628                 memcpy(&regulator_pdata[i], &pdata->regulator[i],
 629                         sizeof(struct regulator_init_data));
 630                 regulator_devs[i].platform_data = &regulator_pdata[i];
 631                 regulator_devs[i].pdata_size = sizeof(regulator_pdata[i]);
 632                 regulator_devs[i].num_resources = 1;
 633                 regulator_devs[i].resources = &regulator_resources[j];
 634
 635                 ret = mfd_add_devices(chip->dev, 0, &regulator_devs[i], 1,
 636                                       &regulator_resources[j], 0);
 637                 if (ret < 0) {
 638                         dev_err(chip->dev, "Failed to add regulator subdev\n");
 639                         goto out;
 640                 }
 641         }
 642 out:
 643         return;
 644 }
 645
 646 static void __devinit device_rtc_init(struct pm860x_chip *chip,
 647                                       struct i2c_client *i2c,
 648                                       struct pm860x_platform_data *pdata)
 649 {
 650         int ret;
 651
 652         if ((pdata == NULL))
 653                 return;
 654
 655         rtc_devs[0].platform_data = pdata->rtc;
 656         rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
 657         rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
 658         rtc_devs[0].resources = &rtc_resources[0];
 659         ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
 660                               ARRAY_SIZE(rtc_devs), &rtc_resources[0],
 661                               chip->irq_base);
 662         if (ret < 0)
 663                 dev_err(chip->dev, "Failed to add rtc subdev\n");
 664 }
 665
 666 static void __devinit device_touch_init(struct pm860x_chip *chip,
 667                                         struct i2c_client *i2c,
 668                                         struct pm860x_platform_data *pdata)
 669 {
 670         int ret;
 671
 672         if ((pdata == NULL) || (pdata->touch == NULL))
 673                 return;
 674
 675         memcpy(&touch_pdata, pdata->touch, sizeof(struct pm860x_touch_pdata));
 676         touch_devs[0].platform_data = &touch_pdata;
 677         touch_devs[0].pdata_size = sizeof(touch_pdata);
 678         touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
 679         touch_devs[0].resources = &touch_resources[0];
 680         ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
 681                               ARRAY_SIZE(touch_devs), &touch_resources[0],
 682                               chip->irq_base);
 683         if (ret < 0)
 684                 dev_err(chip->dev, "Failed to add touch subdev\n");
 685 }
 686
 687 static void __devinit device_power_init(struct pm860x_chip *chip,
 688                                         struct i2c_client *i2c,
 689                                         struct pm860x_platform_data *pdata)
 690 {
 691         int ret;
 692
 693         if ((pdata == NULL) || (pdata->power == NULL))
 694                 return;
 695
 696         memcpy(&power_pdata, pdata->power, sizeof(struct pm860x_power_pdata));
 697         power_devs[0].platform_data = &power_pdata;
 698         power_devs[0].pdata_size = sizeof(power_pdata);
 699         power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
 700         power_devs[0].resources = &battery_resources[0],
 701         ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
 702                               &battery_resources[0], chip->irq_base);
 703         if (ret < 0)
 704                 dev_err(chip->dev, "Failed to add battery subdev\n");
 705
 706         power_devs[1].platform_data = &power_pdata;
 707         power_devs[0].pdata_size = sizeof(power_pdata);
 708         power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
 709         power_devs[1].resources = &charger_resources[0],
 710         ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
 711                               &charger_resources[0], chip->irq_base);
 712         if (ret < 0)
 713                 dev_err(chip->dev, "Failed to add charger subdev\n");
 714 }
 715
 716 static void __devinit device_onkey_init(struct pm860x_chip *chip,
 717                                         struct i2c_client *i2c,
 718                                         struct pm860x_platform_data *pdata)
 719 {
 720         int ret;
 721
 722         onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
 723         onkey_devs[0].resources = &onkey_resources[0],
 724         ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
 725                               ARRAY_SIZE(onkey_devs), &onkey_resources[0],
 726                               chip->irq_base);
 727         if (ret < 0)
 728                 dev_err(chip->dev, "Failed to add onkey subdev\n");
 729 }
 730
 731 static void __devinit device_codec_init(struct pm860x_chip *chip,
 732                                         struct i2c_client *i2c,
 733                                         struct pm860x_platform_data *pdata)
 734 {
 735         int ret;
 736
 737         codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
 738         codec_devs[0].resources = &codec_resources[0],
 739         ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
 740                               ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
 741         if (ret < 0)
 742                 dev_err(chip->dev, "Failed to add codec subdev\n");
 743 }
 744
 745 static void __devinit device_8607_init(struct pm860x_chip *chip,
 746                                        struct i2c_client *i2c,
 747                                        struct pm860x_platform_data *pdata)
 748 {
 749         int data, ret;
 750
 751         ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
 752         if (ret < 0) {
 753                 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
 754                 goto out;
 755         }
 756         switch (ret & PM8607_VERSION_MASK) {
 757         case 0x40:
 758         case 0x50:
 759                 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
 760                          ret);
 761                 break;
 762         default:
 763                 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
 764                         "Chip ID: %02x\n", ret);
 765                 goto out;
 766         }
 767
 768         ret = pm860x_reg_read(i2c, PM8607_BUCK3);
 769         if (ret < 0) {
 770                 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
 771                 goto out;
 772         }
 773         if (ret & PM8607_BUCK3_DOUBLE)
 774                 chip->buck3_double = 1;
 775
 776         ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
 777         if (ret < 0) {
 778                 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
 779                 goto out;
 780         }
 781
 782         if (pdata && (pdata->i2c_port == PI2C_PORT))
 783                 data = PM8607_B0_MISC1_PI2C;
 784         else
 785                 data = 0;
 786         ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
 787         if (ret < 0) {
 788                 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
 789                 goto out;
 790         }
 791
 792         ret = device_gpadc_init(chip, pdata);
 793         if (ret < 0)
 794                 goto out;
 795
 796         ret = device_irq_init(chip, pdata);
 797         if (ret < 0)
 798                 goto out;
 799
 800         device_regulator_init(chip, i2c, pdata);
 801         device_rtc_init(chip, i2c, pdata);
 802         device_onkey_init(chip, i2c, pdata);
 803         device_touch_init(chip, i2c, pdata);
 804         device_power_init(chip, i2c, pdata);
 805         device_codec_init(chip, i2c, pdata);
 806 out:
 807         return;
 808 }
 809
 810 int __devinit pm860x_device_init(struct pm860x_chip *chip,
 811                        struct pm860x_platform_data *pdata)
 812 {
 813         chip->core_irq = 0;
 814
 815         switch (chip->id) {
 816         case CHIP_PM8606:
 817                 device_bk_init(chip, chip->client, pdata);
 818                 device_led_init(chip, chip->client, pdata);
 819                 break;
 820         case CHIP_PM8607:
 821                 device_8607_init(chip, chip->client, pdata);
 822                 break;
 823         }
 824
 825         if (chip->companion) {
 826                 switch (chip->id) {
 827                 case CHIP_PM8607:
 828                         device_bk_init(chip, chip->companion, pdata);
 829                         device_led_init(chip, chip->companion, pdata);
 830                         break;
 831                 case CHIP_PM8606:
 832                         device_8607_init(chip, chip->companion, pdata);
 833                         break;
 834                 }
 835         }
 836
 837         return 0;
 838 }
 839
 840 void __devexit pm860x_device_exit(struct pm860x_chip *chip)
 841 {
 842         device_irq_exit(chip);
 843         mfd_remove_devices(chip->dev);
 844 }
 845
 846 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
 847 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
 848 MODULE_LICENSE("GPL");