linux/drivers/mfd/88pm860x-core.c
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   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
  24static 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
  30static 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
  39static 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
  60static struct resource touch_resources[] __devinitdata = {
  61        {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
  62};
  63
  64static struct resource onkey_resources[] __devinitdata = {
  65        {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
  66};
  67
  68static 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
  79static 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
  84static 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
  93static struct resource rtc_resources[] __devinitdata = {
  94        {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
  95};
  96
  97static struct mfd_cell bk_devs[] = {
  98        {"88pm860x-backlight", 0,},
  99        {"88pm860x-backlight", 1,},
 100        {"88pm860x-backlight", 2,},
 101};
 102
 103static 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
 112static 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
 133static struct mfd_cell touch_devs[] = {
 134        {"88pm860x-touch", -1,},
 135};
 136
 137static struct mfd_cell onkey_devs[] = {
 138        {"88pm860x-onkey", -1,},
 139};
 140
 141static struct mfd_cell codec_devs[] = {
 142        {"88pm860x-codec", -1,},
 143};
 144
 145static struct mfd_cell power_devs[] = {
 146        {"88pm860x-battery", -1,},
 147        {"88pm860x-charger", -1,},
 148};
 149
 150static struct mfd_cell rtc_devs[] = {
 151        {"88pm860x-rtc", -1,},
 152};
 153
 154
 155struct pm860x_irq_data {
 156        int     reg;
 157        int     mask_reg;
 158        int     enable;         /* enable or not */
 159        int     offs;           /* bit offset in mask register */
 160};
 161
 162static struct pm860x_irq_data pm860x_irqs[] = {
 163        [PM8607_IRQ_ONKEY] = {
 164                .reg            = PM8607_INT_STATUS1,
 165                .mask_reg       = PM8607_INT_MASK_1,
 166                .offs           = 1 << 0,
 167        },
 168        [PM8607_IRQ_EXTON] = {
 169                .reg            = PM8607_INT_STATUS1,
 170                .mask_reg       = PM8607_INT_MASK_1,
 171                .offs           = 1 << 1,
 172        },
 173        [PM8607_IRQ_CHG] = {
 174                .reg            = PM8607_INT_STATUS1,
 175                .mask_reg       = PM8607_INT_MASK_1,
 176                .offs           = 1 << 2,
 177        },
 178        [PM8607_IRQ_BAT] = {
 179                .reg            = PM8607_INT_STATUS1,
 180                .mask_reg       = PM8607_INT_MASK_1,
 181                .offs           = 1 << 3,
 182        },
 183        [PM8607_IRQ_RTC] = {
 184                .reg            = PM8607_INT_STATUS1,
 185                .mask_reg       = PM8607_INT_MASK_1,
 186                .offs           = 1 << 4,
 187        },
 188        [PM8607_IRQ_CC] = {
 189                .reg            = PM8607_INT_STATUS1,
 190                .mask_reg       = PM8607_INT_MASK_1,
 191                .offs           = 1 << 5,
 192        },
 193        [PM8607_IRQ_VBAT] = {
 194                .reg            = PM8607_INT_STATUS2,
 195                .mask_reg       = PM8607_INT_MASK_2,
 196                .offs           = 1 << 0,
 197        },
 198        [PM8607_IRQ_VCHG] = {
 199                .reg            = PM8607_INT_STATUS2,
 200                .mask_reg       = PM8607_INT_MASK_2,
 201                .offs           = 1 << 1,
 202        },
 203        [PM8607_IRQ_VSYS] = {
 204                .reg            = PM8607_INT_STATUS2,
 205                .mask_reg       = PM8607_INT_MASK_2,
 206                .offs           = 1 << 2,
 207        },
 208        [PM8607_IRQ_TINT] = {
 209                .reg            = PM8607_INT_STATUS2,
 210                .mask_reg       = PM8607_INT_MASK_2,
 211                .offs           = 1 << 3,
 212        },
 213        [PM8607_IRQ_GPADC0] = {
 214                .reg            = PM8607_INT_STATUS2,
 215                .mask_reg       = PM8607_INT_MASK_2,
 216                .offs           = 1 << 4,
 217        },
 218        [PM8607_IRQ_GPADC1] = {
 219                .reg            = PM8607_INT_STATUS2,
 220                .mask_reg       = PM8607_INT_MASK_2,
 221                .offs           = 1 << 5,
 222        },
 223        [PM8607_IRQ_GPADC2] = {
 224                .reg            = PM8607_INT_STATUS2,
 225                .mask_reg       = PM8607_INT_MASK_2,
 226                .offs           = 1 << 6,
 227        },
 228        [PM8607_IRQ_GPADC3] = {
 229                .reg            = PM8607_INT_STATUS2,
 230                .mask_reg       = PM8607_INT_MASK_2,
 231                .offs           = 1 << 7,
 232        },
 233        [PM8607_IRQ_AUDIO_SHORT] = {
 234                .reg            = PM8607_INT_STATUS3,
 235                .mask_reg       = PM8607_INT_MASK_3,
 236                .offs           = 1 << 0,
 237        },
 238        [PM8607_IRQ_PEN] = {
 239                .reg            = PM8607_INT_STATUS3,
 240                .mask_reg       = PM8607_INT_MASK_3,
 241                .offs           = 1 << 1,
 242        },
 243        [PM8607_IRQ_HEADSET] = {
 244                .reg            = PM8607_INT_STATUS3,
 245                .mask_reg       = PM8607_INT_MASK_3,
 246                .offs           = 1 << 2,
 247        },
 248        [PM8607_IRQ_HOOK] = {
 249                .reg            = PM8607_INT_STATUS3,
 250                .mask_reg       = PM8607_INT_MASK_3,
 251                .offs           = 1 << 3,
 252        },
 253        [PM8607_IRQ_MICIN] = {
 254                .reg            = PM8607_INT_STATUS3,
 255                .mask_reg       = PM8607_INT_MASK_3,
 256                .offs           = 1 << 4,
 257        },
 258        [PM8607_IRQ_CHG_FAIL] = {
 259                .reg            = PM8607_INT_STATUS3,
 260                .mask_reg       = PM8607_INT_MASK_3,
 261                .offs           = 1 << 5,
 262        },
 263        [PM8607_IRQ_CHG_DONE] = {
 264                .reg            = PM8607_INT_STATUS3,
 265                .mask_reg       = PM8607_INT_MASK_3,
 266                .offs           = 1 << 6,
 267        },
 268        [PM8607_IRQ_CHG_FAULT] = {
 269                .reg            = PM8607_INT_STATUS3,
 270                .mask_reg       = PM8607_INT_MASK_3,
 271                .offs           = 1 << 7,
 272        },
 273};
 274
 275static irqreturn_t pm860x_irq(int irq, void *data)
 276{
 277        struct pm860x_chip *chip = data;
 278        struct pm860x_irq_data *irq_data;
 279        struct i2c_client *i2c;
 280        int read_reg = -1, value = 0;
 281        int i;
 282
 283        i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
 284        for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 285                irq_data = &pm860x_irqs[i];
 286                if (read_reg != irq_data->reg) {
 287                        read_reg = irq_data->reg;
 288                        value = pm860x_reg_read(i2c, irq_data->reg);
 289                }
 290                if (value & irq_data->enable)
 291                        handle_nested_irq(chip->irq_base + i);
 292        }
 293        return IRQ_HANDLED;
 294}
 295
 296static void pm860x_irq_lock(struct irq_data *data)
 297{
 298        struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 299
 300        mutex_lock(&chip->irq_lock);
 301}
 302
 303static void pm860x_irq_sync_unlock(struct irq_data *data)
 304{
 305        struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 306        struct pm860x_irq_data *irq_data;
 307        struct i2c_client *i2c;
 308        static unsigned char cached[3] = {0x0, 0x0, 0x0};
 309        unsigned char mask[3];
 310        int i;
 311
 312        i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
 313        /* Load cached value. In initial, all IRQs are masked */
 314        for (i = 0; i < 3; i++)
 315                mask[i] = cached[i];
 316        for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 317                irq_data = &pm860x_irqs[i];
 318                switch (irq_data->mask_reg) {
 319                case PM8607_INT_MASK_1:
 320                        mask[0] &= ~irq_data->offs;
 321                        mask[0] |= irq_data->enable;
 322                        break;
 323                case PM8607_INT_MASK_2:
 324                        mask[1] &= ~irq_data->offs;
 325                        mask[1] |= irq_data->enable;
 326                        break;
 327                case PM8607_INT_MASK_3:
 328                        mask[2] &= ~irq_data->offs;
 329                        mask[2] |= irq_data->enable;
 330                        break;
 331                default:
 332                        dev_err(chip->dev, "wrong IRQ\n");
 333                        break;
 334                }
 335        }
 336        /* update mask into registers */
 337        for (i = 0; i < 3; i++) {
 338                if (mask[i] != cached[i]) {
 339                        cached[i] = mask[i];
 340                        pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
 341                }
 342        }
 343
 344        mutex_unlock(&chip->irq_lock);
 345}
 346
 347static void pm860x_irq_enable(struct irq_data *data)
 348{
 349        struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 350        pm860x_irqs[data->irq - chip->irq_base].enable
 351                = pm860x_irqs[data->irq - chip->irq_base].offs;
 352}
 353
 354static void pm860x_irq_disable(struct irq_data *data)
 355{
 356        struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
 357        pm860x_irqs[data->irq - chip->irq_base].enable = 0;
 358}
 359
 360static struct irq_chip pm860x_irq_chip = {
 361        .name           = "88pm860x",
 362        .irq_bus_lock   = pm860x_irq_lock,
 363        .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
 364        .irq_enable     = pm860x_irq_enable,
 365        .irq_disable    = pm860x_irq_disable,
 366};
 367
 368static int __devinit device_gpadc_init(struct pm860x_chip *chip,
 369                                       struct pm860x_platform_data *pdata)
 370{
 371        struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
 372                                : chip->companion;
 373        int data;
 374        int ret;
 375
 376        /* initialize GPADC without activating it */
 377
 378        if (!pdata || !pdata->touch)
 379                return -EINVAL;
 380
 381        /* set GPADC MISC1 register */
 382        data = 0;
 383        data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK;
 384        data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;
 385        data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK;
 386        data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK;
 387        if (data) {
 388                ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
 389                if (ret < 0)
 390                        goto out;
 391        }
 392        /* set tsi prebias time */
 393        if (pdata->touch->tsi_prebias) {
 394                data = pdata->touch->tsi_prebias;
 395                ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
 396                if (ret < 0)
 397                        goto out;
 398        }
 399        /* set prebias & prechg time of pen detect */
 400        data = 0;
 401        data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK;
 402        data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK;
 403        if (data) {
 404                ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
 405                if (ret < 0)
 406                        goto out;
 407        }
 408
 409        ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1,
 410                              PM8607_GPADC_EN, PM8607_GPADC_EN);
 411out:
 412        return ret;
 413}
 414
 415static int __devinit device_irq_init(struct pm860x_chip *chip,
 416                                     struct pm860x_platform_data *pdata)
 417{
 418        struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
 419                                : chip->companion;
 420        unsigned char status_buf[INT_STATUS_NUM];
 421        unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
 422        int i, data, mask, ret = -EINVAL;
 423        int __irq;
 424
 425        if (!pdata || !pdata->irq_base) {
 426                dev_warn(chip->dev, "No interrupt support on IRQ base\n");
 427                return -EINVAL;
 428        }
 429
 430        mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
 431                | PM8607_B0_MISC1_INT_MASK;
 432        data = 0;
 433        chip->irq_mode = 0;
 434        if (pdata && pdata->irq_mode) {
 435                /*
 436                 * irq_mode defines the way of clearing interrupt. If it's 1,
 437                 * clear IRQ by write. Otherwise, clear it by read.
 438                 * This control bit is valid from 88PM8607 B0 steping.
 439                 */
 440                data |= PM8607_B0_MISC1_INT_CLEAR;
 441                chip->irq_mode = 1;
 442        }
 443        ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
 444        if (ret < 0)
 445                goto out;
 446
 447        /* mask all IRQs */
 448        memset(status_buf, 0, INT_STATUS_NUM);
 449        ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
 450                                INT_STATUS_NUM, status_buf);
 451        if (ret < 0)
 452                goto out;
 453
 454        if (chip->irq_mode) {
 455                /* clear interrupt status by write */
 456                memset(status_buf, 0xFF, INT_STATUS_NUM);
 457                ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
 458                                        INT_STATUS_NUM, status_buf);
 459        } else {
 460                /* clear interrupt status by read */
 461                ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
 462                                        INT_STATUS_NUM, status_buf);
 463        }
 464        if (ret < 0)
 465                goto out;
 466
 467        mutex_init(&chip->irq_lock);
 468        chip->irq_base = pdata->irq_base;
 469        chip->core_irq = i2c->irq;
 470        if (!chip->core_irq)
 471                goto out;
 472
 473        /* register IRQ by genirq */
 474        for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
 475                __irq = i + chip->irq_base;
 476                irq_set_chip_data(__irq, chip);
 477                irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
 478                                         handle_edge_irq);
 479                irq_set_nested_thread(__irq, 1);
 480#ifdef CONFIG_ARM
 481                set_irq_flags(__irq, IRQF_VALID);
 482#else
 483                irq_set_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;
 495out:
 496        chip->core_irq = 0;
 497        return ret;
 498}
 499
 500static void device_irq_exit(struct pm860x_chip *chip)
 501{
 502        if (chip->core_irq)
 503                free_irq(chip->core_irq, chip);
 504}
 505
 506static void __devinit device_bk_init(struct pm860x_chip *chip,
 507                                     struct pm860x_platform_data *pdata)
 508{
 509        int ret;
 510        int i, j, id;
 511
 512        if ((pdata == NULL) || (pdata->backlight == NULL))
 513                return;
 514
 515        if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
 516                pdata->num_backlights = ARRAY_SIZE(bk_devs);
 517
 518        for (i = 0; i < pdata->num_backlights; i++) {
 519                bk_devs[i].platform_data = &pdata->backlight[i];
 520                bk_devs[i].pdata_size = sizeof(struct pm860x_backlight_pdata);
 521
 522                for (j = 0; j < ARRAY_SIZE(bk_devs); j++) {
 523                        id = bk_resources[j].start;
 524                        if (pdata->backlight[i].flags != id)
 525                                continue;
 526
 527                        bk_devs[i].num_resources = 1;
 528                        bk_devs[i].resources = &bk_resources[j];
 529                        ret = mfd_add_devices(chip->dev, 0,
 530                                              &bk_devs[i], 1,
 531                                              &bk_resources[j], 0);
 532                        if (ret < 0) {
 533                                dev_err(chip->dev, "Failed to add "
 534                                        "backlight subdev\n");
 535                                return;
 536                        }
 537                }
 538        }
 539}
 540
 541static void __devinit device_led_init(struct pm860x_chip *chip,
 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                led_devs[i].platform_data = &pdata->led[i];
 555                led_devs[i].pdata_size = sizeof(struct pm860x_led_pdata);
 556
 557                for (j = 0; j < ARRAY_SIZE(led_devs); j++) {
 558                        id = led_resources[j].start;
 559                        if (pdata->led[i].flags != id)
 560                                continue;
 561
 562                        led_devs[i].num_resources = 1;
 563                        led_devs[i].resources = &led_resources[j],
 564                        ret = mfd_add_devices(chip->dev, 0,
 565                                              &led_devs[i], 1,
 566                                              &led_resources[j], 0);
 567                        if (ret < 0) {
 568                                dev_err(chip->dev, "Failed to add "
 569                                        "led subdev\n");
 570                                return;
 571                        }
 572                }
 573        }
 574}
 575
 576static void __devinit device_regulator_init(struct pm860x_chip *chip,
 577                                            struct pm860x_platform_data *pdata)
 578{
 579        struct regulator_init_data *initdata;
 580        int ret;
 581        int i, seq;
 582
 583        if ((pdata == NULL) || (pdata->regulator == NULL))
 584                return;
 585
 586        if (pdata->num_regulators > ARRAY_SIZE(regulator_devs))
 587                pdata->num_regulators = ARRAY_SIZE(regulator_devs);
 588
 589        for (i = 0, seq = -1; i < pdata->num_regulators; i++) {
 590                initdata = &pdata->regulator[i];
 591                seq = *(unsigned int *)initdata->driver_data;
 592                if ((seq < 0) || (seq > PM8607_ID_RG_MAX)) {
 593                        dev_err(chip->dev, "Wrong ID(%d) on regulator(%s)\n",
 594                                seq, initdata->constraints.name);
 595                        goto out;
 596                }
 597                regulator_devs[i].platform_data = &pdata->regulator[i];
 598                regulator_devs[i].pdata_size = sizeof(struct regulator_init_data);
 599                regulator_devs[i].num_resources = 1;
 600                regulator_devs[i].resources = &regulator_resources[seq];
 601
 602                ret = mfd_add_devices(chip->dev, 0, &regulator_devs[i], 1,
 603                                      &regulator_resources[seq], 0);
 604                if (ret < 0) {
 605                        dev_err(chip->dev, "Failed to add regulator subdev\n");
 606                        goto out;
 607                }
 608        }
 609out:
 610        return;
 611}
 612
 613static void __devinit device_rtc_init(struct pm860x_chip *chip,
 614                                      struct pm860x_platform_data *pdata)
 615{
 616        int ret;
 617
 618        if ((pdata == NULL))
 619                return;
 620
 621        rtc_devs[0].platform_data = pdata->rtc;
 622        rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
 623        rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
 624        rtc_devs[0].resources = &rtc_resources[0];
 625        ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
 626                              ARRAY_SIZE(rtc_devs), &rtc_resources[0],
 627                              chip->irq_base);
 628        if (ret < 0)
 629                dev_err(chip->dev, "Failed to add rtc subdev\n");
 630}
 631
 632static void __devinit device_touch_init(struct pm860x_chip *chip,
 633                                        struct pm860x_platform_data *pdata)
 634{
 635        int ret;
 636
 637        if (pdata == NULL)
 638                return;
 639
 640        touch_devs[0].platform_data = pdata->touch;
 641        touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
 642        touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
 643        touch_devs[0].resources = &touch_resources[0];
 644        ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
 645                              ARRAY_SIZE(touch_devs), &touch_resources[0],
 646                              chip->irq_base);
 647        if (ret < 0)
 648                dev_err(chip->dev, "Failed to add touch subdev\n");
 649}
 650
 651static void __devinit device_power_init(struct pm860x_chip *chip,
 652                                        struct pm860x_platform_data *pdata)
 653{
 654        int ret;
 655
 656        if (pdata == NULL)
 657                return;
 658
 659        power_devs[0].platform_data = pdata->power;
 660        power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
 661        power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
 662        power_devs[0].resources = &battery_resources[0],
 663        ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
 664                              &battery_resources[0], chip->irq_base);
 665        if (ret < 0)
 666                dev_err(chip->dev, "Failed to add battery subdev\n");
 667
 668        power_devs[1].platform_data = pdata->power;
 669        power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
 670        power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
 671        power_devs[1].resources = &charger_resources[0],
 672        ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
 673                              &charger_resources[0], chip->irq_base);
 674        if (ret < 0)
 675                dev_err(chip->dev, "Failed to add charger subdev\n");
 676}
 677
 678static void __devinit device_onkey_init(struct pm860x_chip *chip,
 679                                        struct pm860x_platform_data *pdata)
 680{
 681        int ret;
 682
 683        onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
 684        onkey_devs[0].resources = &onkey_resources[0],
 685        ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
 686                              ARRAY_SIZE(onkey_devs), &onkey_resources[0],
 687                              chip->irq_base);
 688        if (ret < 0)
 689                dev_err(chip->dev, "Failed to add onkey subdev\n");
 690}
 691
 692static void __devinit device_codec_init(struct pm860x_chip *chip,
 693                                        struct pm860x_platform_data *pdata)
 694{
 695        int ret;
 696
 697        codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
 698        codec_devs[0].resources = &codec_resources[0],
 699        ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
 700                              ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
 701        if (ret < 0)
 702                dev_err(chip->dev, "Failed to add codec subdev\n");
 703}
 704
 705static void __devinit device_8607_init(struct pm860x_chip *chip,
 706                                       struct i2c_client *i2c,
 707                                       struct pm860x_platform_data *pdata)
 708{
 709        int data, ret;
 710
 711        ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
 712        if (ret < 0) {
 713                dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
 714                goto out;
 715        }
 716        switch (ret & PM8607_VERSION_MASK) {
 717        case 0x40:
 718        case 0x50:
 719                dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
 720                         ret);
 721                break;
 722        default:
 723                dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
 724                        "Chip ID: %02x\n", ret);
 725                goto out;
 726        }
 727
 728        ret = pm860x_reg_read(i2c, PM8607_BUCK3);
 729        if (ret < 0) {
 730                dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
 731                goto out;
 732        }
 733        if (ret & PM8607_BUCK3_DOUBLE)
 734                chip->buck3_double = 1;
 735
 736        ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
 737        if (ret < 0) {
 738                dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
 739                goto out;
 740        }
 741
 742        if (pdata && (pdata->i2c_port == PI2C_PORT))
 743                data = PM8607_B0_MISC1_PI2C;
 744        else
 745                data = 0;
 746        ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
 747        if (ret < 0) {
 748                dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
 749                goto out;
 750        }
 751
 752        ret = device_gpadc_init(chip, pdata);
 753        if (ret < 0)
 754                goto out;
 755
 756        ret = device_irq_init(chip, pdata);
 757        if (ret < 0)
 758                goto out;
 759
 760        device_regulator_init(chip, pdata);
 761        device_rtc_init(chip, pdata);
 762        device_onkey_init(chip, pdata);
 763        device_touch_init(chip, pdata);
 764        device_power_init(chip, pdata);
 765        device_codec_init(chip, pdata);
 766out:
 767        return;
 768}
 769
 770int __devinit pm860x_device_init(struct pm860x_chip *chip,
 771                       struct pm860x_platform_data *pdata)
 772{
 773        chip->core_irq = 0;
 774
 775        switch (chip->id) {
 776        case CHIP_PM8606:
 777                device_bk_init(chip, pdata);
 778                device_led_init(chip, pdata);
 779                break;
 780        case CHIP_PM8607:
 781                device_8607_init(chip, chip->client, pdata);
 782                break;
 783        }
 784
 785        if (chip->companion) {
 786                switch (chip->id) {
 787                case CHIP_PM8607:
 788                        device_bk_init(chip, pdata);
 789                        device_led_init(chip, pdata);
 790                        break;
 791                case CHIP_PM8606:
 792                        device_8607_init(chip, chip->companion, pdata);
 793                        break;
 794                }
 795        }
 796
 797        return 0;
 798}
 799
 800void __devexit pm860x_device_exit(struct pm860x_chip *chip)
 801{
 802        device_irq_exit(chip);
 803        mfd_remove_devices(chip->dev);
 804}
 805
 806MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
 807MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
 808MODULE_LICENSE("GPL");
 809