drivers/input/keyboard/adp5589-keys.c

   1 /*
   2  * Description:  keypad driver for ADP5589, ADP5585
   3  *               I2C QWERTY Keypad and IO Expander
   4  * Bugs: Enter bugs at http://blackfin.uclinux.org/
   5  *
   6  * Copyright (C) 2010-2011 Analog Devices Inc.
   7  * Licensed under the GPL-2.
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/irq.h>
  14 #include <linux/workqueue.h>
  15 #include <linux/errno.h>
  16 #include <linux/pm.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/input.h>
  19 #include <linux/i2c.h>
  20 #include <linux/gpio.h>
  21 #include <linux/slab.h>
  22
  23 #include <linux/input/adp5589.h>
  24
  25 /* ADP5589/ADP5585 Common Registers */
  26 #define ADP5589_5_ID                    0x00
  27 #define ADP5589_5_INT_STATUS            0x01
  28 #define ADP5589_5_STATUS                0x02
  29 #define ADP5589_5_FIFO_1                0x03
  30 #define ADP5589_5_FIFO_2                0x04
  31 #define ADP5589_5_FIFO_3                0x05
  32 #define ADP5589_5_FIFO_4                0x06
  33 #define ADP5589_5_FIFO_5                0x07
  34 #define ADP5589_5_FIFO_6                0x08
  35 #define ADP5589_5_FIFO_7                0x09
  36 #define ADP5589_5_FIFO_8                0x0A
  37 #define ADP5589_5_FIFO_9                0x0B
  38 #define ADP5589_5_FIFO_10               0x0C
  39 #define ADP5589_5_FIFO_11               0x0D
  40 #define ADP5589_5_FIFO_12               0x0E
  41 #define ADP5589_5_FIFO_13               0x0F
  42 #define ADP5589_5_FIFO_14               0x10
  43 #define ADP5589_5_FIFO_15               0x11
  44 #define ADP5589_5_FIFO_16               0x12
  45 #define ADP5589_5_GPI_INT_STAT_A        0x13
  46 #define ADP5589_5_GPI_INT_STAT_B        0x14
  47
  48 /* ADP5589 Registers */
  49 #define ADP5589_GPI_INT_STAT_C          0x15
  50 #define ADP5589_GPI_STATUS_A            0x16
  51 #define ADP5589_GPI_STATUS_B            0x17
  52 #define ADP5589_GPI_STATUS_C            0x18
  53 #define ADP5589_RPULL_CONFIG_A          0x19
  54 #define ADP5589_RPULL_CONFIG_B          0x1A
  55 #define ADP5589_RPULL_CONFIG_C          0x1B
  56 #define ADP5589_RPULL_CONFIG_D          0x1C
  57 #define ADP5589_RPULL_CONFIG_E          0x1D
  58 #define ADP5589_GPI_INT_LEVEL_A         0x1E
  59 #define ADP5589_GPI_INT_LEVEL_B         0x1F
  60 #define ADP5589_GPI_INT_LEVEL_C         0x20
  61 #define ADP5589_GPI_EVENT_EN_A          0x21
  62 #define ADP5589_GPI_EVENT_EN_B          0x22
  63 #define ADP5589_GPI_EVENT_EN_C          0x23
  64 #define ADP5589_GPI_INTERRUPT_EN_A      0x24
  65 #define ADP5589_GPI_INTERRUPT_EN_B      0x25
  66 #define ADP5589_GPI_INTERRUPT_EN_C      0x26
  67 #define ADP5589_DEBOUNCE_DIS_A          0x27
  68 #define ADP5589_DEBOUNCE_DIS_B          0x28
  69 #define ADP5589_DEBOUNCE_DIS_C          0x29
  70 #define ADP5589_GPO_DATA_OUT_A          0x2A
  71 #define ADP5589_GPO_DATA_OUT_B          0x2B
  72 #define ADP5589_GPO_DATA_OUT_C          0x2C
  73 #define ADP5589_GPO_OUT_MODE_A          0x2D
  74 #define ADP5589_GPO_OUT_MODE_B          0x2E
  75 #define ADP5589_GPO_OUT_MODE_C          0x2F
  76 #define ADP5589_GPIO_DIRECTION_A        0x30
  77 #define ADP5589_GPIO_DIRECTION_B        0x31
  78 #define ADP5589_GPIO_DIRECTION_C        0x32
  79 #define ADP5589_UNLOCK1                 0x33
  80 #define ADP5589_UNLOCK2                 0x34
  81 #define ADP5589_EXT_LOCK_EVENT          0x35
  82 #define ADP5589_UNLOCK_TIMERS           0x36
  83 #define ADP5589_LOCK_CFG                0x37
  84 #define ADP5589_RESET1_EVENT_A          0x38
  85 #define ADP5589_RESET1_EVENT_B          0x39
  86 #define ADP5589_RESET1_EVENT_C          0x3A
  87 #define ADP5589_RESET2_EVENT_A          0x3B
  88 #define ADP5589_RESET2_EVENT_B          0x3C
  89 #define ADP5589_RESET_CFG               0x3D
  90 #define ADP5589_PWM_OFFT_LOW            0x3E
  91 #define ADP5589_PWM_OFFT_HIGH           0x3F
  92 #define ADP5589_PWM_ONT_LOW             0x40
  93 #define ADP5589_PWM_ONT_HIGH            0x41
  94 #define ADP5589_PWM_CFG                 0x42
  95 #define ADP5589_CLOCK_DIV_CFG           0x43
  96 #define ADP5589_LOGIC_1_CFG             0x44
  97 #define ADP5589_LOGIC_2_CFG             0x45
  98 #define ADP5589_LOGIC_FF_CFG            0x46
  99 #define ADP5589_LOGIC_INT_EVENT_EN      0x47
 100 #define ADP5589_POLL_PTIME_CFG          0x48
 101 #define ADP5589_PIN_CONFIG_A            0x49
 102 #define ADP5589_PIN_CONFIG_B            0x4A
 103 #define ADP5589_PIN_CONFIG_C            0x4B
 104 #define ADP5589_PIN_CONFIG_D            0x4C
 105 #define ADP5589_GENERAL_CFG             0x4D
 106 #define ADP5589_INT_EN                  0x4E
 107
 108 /* ADP5585 Registers */
 109 #define ADP5585_GPI_STATUS_A            0x15
 110 #define ADP5585_GPI_STATUS_B            0x16
 111 #define ADP5585_RPULL_CONFIG_A          0x17
 112 #define ADP5585_RPULL_CONFIG_B          0x18
 113 #define ADP5585_RPULL_CONFIG_C          0x19
 114 #define ADP5585_RPULL_CONFIG_D          0x1A
 115 #define ADP5585_GPI_INT_LEVEL_A         0x1B
 116 #define ADP5585_GPI_INT_LEVEL_B         0x1C
 117 #define ADP5585_GPI_EVENT_EN_A          0x1D
 118 #define ADP5585_GPI_EVENT_EN_B          0x1E
 119 #define ADP5585_GPI_INTERRUPT_EN_A      0x1F
 120 #define ADP5585_GPI_INTERRUPT_EN_B      0x20
 121 #define ADP5585_DEBOUNCE_DIS_A          0x21
 122 #define ADP5585_DEBOUNCE_DIS_B          0x22
 123 #define ADP5585_GPO_DATA_OUT_A          0x23
 124 #define ADP5585_GPO_DATA_OUT_B          0x24
 125 #define ADP5585_GPO_OUT_MODE_A          0x25
 126 #define ADP5585_GPO_OUT_MODE_B          0x26
 127 #define ADP5585_GPIO_DIRECTION_A        0x27
 128 #define ADP5585_GPIO_DIRECTION_B        0x28
 129 #define ADP5585_RESET1_EVENT_A          0x29
 130 #define ADP5585_RESET1_EVENT_B          0x2A
 131 #define ADP5585_RESET1_EVENT_C          0x2B
 132 #define ADP5585_RESET2_EVENT_A          0x2C
 133 #define ADP5585_RESET2_EVENT_B          0x2D
 134 #define ADP5585_RESET_CFG               0x2E
 135 #define ADP5585_PWM_OFFT_LOW            0x2F
 136 #define ADP5585_PWM_OFFT_HIGH           0x30
 137 #define ADP5585_PWM_ONT_LOW             0x31
 138 #define ADP5585_PWM_ONT_HIGH            0x32
 139 #define ADP5585_PWM_CFG                 0x33
 140 #define ADP5585_LOGIC_CFG               0x34
 141 #define ADP5585_LOGIC_FF_CFG            0x35
 142 #define ADP5585_LOGIC_INT_EVENT_EN      0x36
 143 #define ADP5585_POLL_PTIME_CFG          0x37
 144 #define ADP5585_PIN_CONFIG_A            0x38
 145 #define ADP5585_PIN_CONFIG_B            0x39
 146 #define ADP5585_PIN_CONFIG_D            0x3A
 147 #define ADP5585_GENERAL_CFG             0x3B
 148 #define ADP5585_INT_EN                  0x3C
 149
 150 /* ID Register */
 151 #define ADP5589_5_DEVICE_ID_MASK        0xF
 152 #define ADP5589_5_MAN_ID_MASK           0xF
 153 #define ADP5589_5_MAN_ID_SHIFT          4
 154 #define ADP5589_5_MAN_ID                0x02
 155
 156 /* GENERAL_CFG Register */
 157 #define OSC_EN          (1 << 7)
 158 #define CORE_CLK(x)     (((x) & 0x3) << 5)
 159 #define LCK_TRK_LOGIC   (1 << 4)        /* ADP5589 only */
 160 #define LCK_TRK_GPI     (1 << 3)        /* ADP5589 only */
 161 #define INT_CFG         (1 << 1)
 162 #define RST_CFG         (1 << 0)
 163
 164 /* INT_EN Register */
 165 #define LOGIC2_IEN      (1 << 5)        /* ADP5589 only */
 166 #define LOGIC1_IEN      (1 << 4)
 167 #define LOCK_IEN        (1 << 3)        /* ADP5589 only */
 168 #define OVRFLOW_IEN     (1 << 2)
 169 #define GPI_IEN         (1 << 1)
 170 #define EVENT_IEN       (1 << 0)
 171
 172 /* Interrupt Status Register */
 173 #define LOGIC2_INT      (1 << 5)        /* ADP5589 only */
 174 #define LOGIC1_INT      (1 << 4)
 175 #define LOCK_INT        (1 << 3)        /* ADP5589 only */
 176 #define OVRFLOW_INT     (1 << 2)
 177 #define GPI_INT         (1 << 1)
 178 #define EVENT_INT       (1 << 0)
 179
 180 /* STATUS Register */
 181 #define LOGIC2_STAT     (1 << 7)        /* ADP5589 only */
 182 #define LOGIC1_STAT     (1 << 6)
 183 #define LOCK_STAT       (1 << 5)        /* ADP5589 only */
 184 #define KEC             0xF
 185
 186 /* PIN_CONFIG_D Register */
 187 #define C4_EXTEND_CFG   (1 << 6)        /* RESET2 */
 188 #define R4_EXTEND_CFG   (1 << 5)        /* RESET1 */
 189
 190 /* LOCK_CFG */
 191 #define LOCK_EN         (1 << 0)
 192
 193 #define PTIME_MASK      0x3
 194 #define LTIME_MASK      0x3             /* ADP5589 only */
 195
 196 /* Key Event Register xy */
 197 #define KEY_EV_PRESSED          (1 << 7)
 198 #define KEY_EV_MASK             (0x7F)
 199
 200 #define KEYP_MAX_EVENT          16
 201 #define ADP5589_MAXGPIO         19
 202 #define ADP5585_MAXGPIO         11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
 203
 204 enum {
 205         ADP5589,
 206         ADP5585_01,
 207         ADP5585_02
 208 };
 209
 210 struct adp_constants {
 211         u8 maxgpio;
 212         u8 keymapsize;
 213         u8 gpi_pin_row_base;
 214         u8 gpi_pin_row_end;
 215         u8 gpi_pin_col_base;
 216         u8 gpi_pin_base;
 217         u8 gpi_pin_end;
 218         u8 gpimapsize_max;
 219         u8 max_row_num;
 220         u8 max_col_num;
 221         u8 row_mask;
 222         u8 col_mask;
 223         u8 col_shift;
 224         u8 c4_extend_cfg;
 225         u8 (*bank) (u8 offset);
 226         u8 (*bit) (u8 offset);
 227         u8 (*reg) (u8 reg);
 228 };
 229
 230 struct adp5589_kpad {
 231         struct i2c_client *client;
 232         struct input_dev *input;
 233         const struct adp_constants *var;
 234         unsigned short keycode[ADP5589_KEYMAPSIZE];
 235         const struct adp5589_gpi_map *gpimap;
 236         unsigned short gpimapsize;
 237         unsigned extend_cfg;
 238         bool is_adp5585;
 239         bool adp5585_support_row5;
 240 #ifdef CONFIG_GPIOLIB
 241         unsigned char gpiomap[ADP5589_MAXGPIO];
 242         bool export_gpio;
 243         struct gpio_chip gc;
 244         struct mutex gpio_lock; /* Protect cached dir, dat_out */
 245         u8 dat_out[3];
 246         u8 dir[3];
 247 #endif
 248 };
 249
 250 /*
 251  *  ADP5589 / ADP5585 derivative / variant handling
 252  */
 253
 254
 255 /* ADP5589 */
 256
 257 static unsigned char adp5589_bank(unsigned char offset)
 258 {
 259         return offset >> 3;
 260 }
 261
 262 static unsigned char adp5589_bit(unsigned char offset)
 263 {
 264         return 1u << (offset & 0x7);
 265 }
 266
 267 static unsigned char adp5589_reg(unsigned char reg)
 268 {
 269         return reg;
 270 }
 271
 272 static const struct adp_constants const_adp5589 = {
 273         .maxgpio                = ADP5589_MAXGPIO,
 274         .keymapsize             = ADP5589_KEYMAPSIZE,
 275         .gpi_pin_row_base       = ADP5589_GPI_PIN_ROW_BASE,
 276         .gpi_pin_row_end        = ADP5589_GPI_PIN_ROW_END,
 277         .gpi_pin_col_base       = ADP5589_GPI_PIN_COL_BASE,
 278         .gpi_pin_base           = ADP5589_GPI_PIN_BASE,
 279         .gpi_pin_end            = ADP5589_GPI_PIN_END,
 280         .gpimapsize_max         = ADP5589_GPIMAPSIZE_MAX,
 281         .c4_extend_cfg          = 12,
 282         .max_row_num            = ADP5589_MAX_ROW_NUM,
 283         .max_col_num            = ADP5589_MAX_COL_NUM,
 284         .row_mask               = ADP5589_ROW_MASK,
 285         .col_mask               = ADP5589_COL_MASK,
 286         .col_shift              = ADP5589_COL_SHIFT,
 287         .bank                   = adp5589_bank,
 288         .bit                    = adp5589_bit,
 289         .reg                    = adp5589_reg,
 290 };
 291
 292 /* ADP5585 */
 293
 294 static unsigned char adp5585_bank(unsigned char offset)
 295 {
 296         return offset > ADP5585_MAX_ROW_NUM;
 297 }
 298
 299 static unsigned char adp5585_bit(unsigned char offset)
 300 {
 301         return (offset > ADP5585_MAX_ROW_NUM) ?
 302                 1u << (offset - ADP5585_COL_SHIFT) : 1u << offset;
 303 }
 304
 305 static const unsigned char adp5585_reg_lut[] = {
 306         [ADP5589_GPI_STATUS_A]          = ADP5585_GPI_STATUS_A,
 307         [ADP5589_GPI_STATUS_B]          = ADP5585_GPI_STATUS_B,
 308         [ADP5589_RPULL_CONFIG_A]        = ADP5585_RPULL_CONFIG_A,
 309         [ADP5589_RPULL_CONFIG_B]        = ADP5585_RPULL_CONFIG_B,
 310         [ADP5589_RPULL_CONFIG_C]        = ADP5585_RPULL_CONFIG_C,
 311         [ADP5589_RPULL_CONFIG_D]        = ADP5585_RPULL_CONFIG_D,
 312         [ADP5589_GPI_INT_LEVEL_A]       = ADP5585_GPI_INT_LEVEL_A,
 313         [ADP5589_GPI_INT_LEVEL_B]       = ADP5585_GPI_INT_LEVEL_B,
 314         [ADP5589_GPI_EVENT_EN_A]        = ADP5585_GPI_EVENT_EN_A,
 315         [ADP5589_GPI_EVENT_EN_B]        = ADP5585_GPI_EVENT_EN_B,
 316         [ADP5589_GPI_INTERRUPT_EN_A]    = ADP5585_GPI_INTERRUPT_EN_A,
 317         [ADP5589_GPI_INTERRUPT_EN_B]    = ADP5585_GPI_INTERRUPT_EN_B,
 318         [ADP5589_DEBOUNCE_DIS_A]        = ADP5585_DEBOUNCE_DIS_A,
 319         [ADP5589_DEBOUNCE_DIS_B]        = ADP5585_DEBOUNCE_DIS_B,
 320         [ADP5589_GPO_DATA_OUT_A]        = ADP5585_GPO_DATA_OUT_A,
 321         [ADP5589_GPO_DATA_OUT_B]        = ADP5585_GPO_DATA_OUT_B,
 322         [ADP5589_GPO_OUT_MODE_A]        = ADP5585_GPO_OUT_MODE_A,
 323         [ADP5589_GPO_OUT_MODE_B]        = ADP5585_GPO_OUT_MODE_B,
 324         [ADP5589_GPIO_DIRECTION_A]      = ADP5585_GPIO_DIRECTION_A,
 325         [ADP5589_GPIO_DIRECTION_B]      = ADP5585_GPIO_DIRECTION_B,
 326         [ADP5589_RESET1_EVENT_A]        = ADP5585_RESET1_EVENT_A,
 327         [ADP5589_RESET1_EVENT_B]        = ADP5585_RESET1_EVENT_B,
 328         [ADP5589_RESET1_EVENT_C]        = ADP5585_RESET1_EVENT_C,
 329         [ADP5589_RESET2_EVENT_A]        = ADP5585_RESET2_EVENT_A,
 330         [ADP5589_RESET2_EVENT_B]        = ADP5585_RESET2_EVENT_B,
 331         [ADP5589_RESET_CFG]             = ADP5585_RESET_CFG,
 332         [ADP5589_PWM_OFFT_LOW]          = ADP5585_PWM_OFFT_LOW,
 333         [ADP5589_PWM_OFFT_HIGH]         = ADP5585_PWM_OFFT_HIGH,
 334         [ADP5589_PWM_ONT_LOW]           = ADP5585_PWM_ONT_LOW,
 335         [ADP5589_PWM_ONT_HIGH]          = ADP5585_PWM_ONT_HIGH,
 336         [ADP5589_PWM_CFG]               = ADP5585_PWM_CFG,
 337         [ADP5589_LOGIC_1_CFG]           = ADP5585_LOGIC_CFG,
 338         [ADP5589_LOGIC_FF_CFG]          = ADP5585_LOGIC_FF_CFG,
 339         [ADP5589_LOGIC_INT_EVENT_EN]    = ADP5585_LOGIC_INT_EVENT_EN,
 340         [ADP5589_POLL_PTIME_CFG]        = ADP5585_POLL_PTIME_CFG,
 341         [ADP5589_PIN_CONFIG_A]          = ADP5585_PIN_CONFIG_A,
 342         [ADP5589_PIN_CONFIG_B]          = ADP5585_PIN_CONFIG_B,
 343         [ADP5589_PIN_CONFIG_D]          = ADP5585_PIN_CONFIG_D,
 344         [ADP5589_GENERAL_CFG]           = ADP5585_GENERAL_CFG,
 345         [ADP5589_INT_EN]                = ADP5585_INT_EN,
 346 };
 347
 348 static unsigned char adp5585_reg(unsigned char reg)
 349 {
 350         return adp5585_reg_lut[reg];
 351 }
 352
 353 static const struct adp_constants const_adp5585 = {
 354         .maxgpio                = ADP5585_MAXGPIO,
 355         .keymapsize             = ADP5585_KEYMAPSIZE,
 356         .gpi_pin_row_base       = ADP5585_GPI_PIN_ROW_BASE,
 357         .gpi_pin_row_end        = ADP5585_GPI_PIN_ROW_END,
 358         .gpi_pin_col_base       = ADP5585_GPI_PIN_COL_BASE,
 359         .gpi_pin_base           = ADP5585_GPI_PIN_BASE,
 360         .gpi_pin_end            = ADP5585_GPI_PIN_END,
 361         .gpimapsize_max         = ADP5585_GPIMAPSIZE_MAX,
 362         .c4_extend_cfg          = 10,
 363         .max_row_num            = ADP5585_MAX_ROW_NUM,
 364         .max_col_num            = ADP5585_MAX_COL_NUM,
 365         .row_mask               = ADP5585_ROW_MASK,
 366         .col_mask               = ADP5585_COL_MASK,
 367         .col_shift              = ADP5585_COL_SHIFT,
 368         .bank                   = adp5585_bank,
 369         .bit                    = adp5585_bit,
 370         .reg                    = adp5585_reg,
 371 };
 372
 373 static int adp5589_read(struct i2c_client *client, u8 reg)
 374 {
 375         int ret = i2c_smbus_read_byte_data(client, reg);
 376
 377         if (ret < 0)
 378                 dev_err(&client->dev, "Read Error\n");
 379
 380         return ret;
 381 }
 382
 383 static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
 384 {
 385         return i2c_smbus_write_byte_data(client, reg, val);
 386 }
 387
 388 #ifdef CONFIG_GPIOLIB
 389 static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
 390 {
 391         struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
 392         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 393         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 394
 395         return !!(adp5589_read(kpad->client,
 396                                kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) &
 397                                bit);
 398 }
 399
 400 static void adp5589_gpio_set_value(struct gpio_chip *chip,
 401                                    unsigned off, int val)
 402 {
 403         struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
 404         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 405         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 406
 407         mutex_lock(&kpad->gpio_lock);
 408
 409         if (val)
 410                 kpad->dat_out[bank] |= bit;
 411         else
 412                 kpad->dat_out[bank] &= ~bit;
 413
 414         adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
 415                       bank, kpad->dat_out[bank]);
 416
 417         mutex_unlock(&kpad->gpio_lock);
 418 }
 419
 420 static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
 421 {
 422         struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
 423         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 424         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 425         int ret;
 426
 427         mutex_lock(&kpad->gpio_lock);
 428
 429         kpad->dir[bank] &= ~bit;
 430         ret = adp5589_write(kpad->client,
 431                             kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 432                             kpad->dir[bank]);
 433
 434         mutex_unlock(&kpad->gpio_lock);
 435
 436         return ret;
 437 }
 438
 439 static int adp5589_gpio_direction_output(struct gpio_chip *chip,
 440                                          unsigned off, int val)
 441 {
 442         struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
 443         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 444         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 445         int ret;
 446
 447         mutex_lock(&kpad->gpio_lock);
 448
 449         kpad->dir[bank] |= bit;
 450
 451         if (val)
 452                 kpad->dat_out[bank] |= bit;
 453         else
 454                 kpad->dat_out[bank] &= ~bit;
 455
 456         ret = adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A)
 457                             + bank, kpad->dat_out[bank]);
 458         ret |= adp5589_write(kpad->client,
 459                              kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 460                              kpad->dir[bank]);
 461
 462         mutex_unlock(&kpad->gpio_lock);
 463
 464         return ret;
 465 }
 466
 467 static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
 468                                 const struct adp5589_kpad_platform_data *pdata)
 469 {
 470         bool pin_used[ADP5589_MAXGPIO];
 471         int n_unused = 0;
 472         int i;
 473
 474         memset(pin_used, false, sizeof(pin_used));
 475
 476         for (i = 0; i < kpad->var->maxgpio; i++)
 477                 if (pdata->keypad_en_mask & (1 << i))
 478                         pin_used[i] = true;
 479
 480         for (i = 0; i < kpad->gpimapsize; i++)
 481                 pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
 482
 483         if (kpad->extend_cfg & R4_EXTEND_CFG)
 484                 pin_used[4] = true;
 485
 486         if (kpad->extend_cfg & C4_EXTEND_CFG)
 487                 pin_used[kpad->var->c4_extend_cfg] = true;
 488
 489         if (!kpad->adp5585_support_row5)
 490                 pin_used[5] = true;
 491
 492         for (i = 0; i < kpad->var->maxgpio; i++)
 493                 if (!pin_used[i])
 494                         kpad->gpiomap[n_unused++] = i;
 495
 496         return n_unused;
 497 }
 498
 499 static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
 500 {
 501         struct device *dev = &kpad->client->dev;
 502         const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
 503         const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
 504         int i, error;
 505
 506         if (!gpio_data)
 507                 return 0;
 508
 509         kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
 510         if (kpad->gc.ngpio == 0) {
 511                 dev_info(dev, "No unused gpios left to export\n");
 512                 return 0;
 513         }
 514
 515         kpad->export_gpio = true;
 516
 517         kpad->gc.direction_input = adp5589_gpio_direction_input;
 518         kpad->gc.direction_output = adp5589_gpio_direction_output;
 519         kpad->gc.get = adp5589_gpio_get_value;
 520         kpad->gc.set = adp5589_gpio_set_value;
 521         kpad->gc.can_sleep = 1;
 522
 523         kpad->gc.base = gpio_data->gpio_start;
 524         kpad->gc.label = kpad->client->name;
 525         kpad->gc.owner = THIS_MODULE;
 526
 527         mutex_init(&kpad->gpio_lock);
 528
 529         error = gpiochip_add(&kpad->gc);
 530         if (error) {
 531                 dev_err(dev, "gpiochip_add failed, err: %d\n", error);
 532                 return error;
 533         }
 534
 535         for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
 536                 kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
 537                                                 ADP5589_GPO_DATA_OUT_A) + i);
 538                 kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
 539                                             ADP5589_GPIO_DIRECTION_A) + i);
 540         }
 541
 542         if (gpio_data->setup) {
 543                 error = gpio_data->setup(kpad->client,
 544                                          kpad->gc.base, kpad->gc.ngpio,
 545                                          gpio_data->context);
 546                 if (error)
 547                         dev_warn(dev, "setup failed, %d\n", error);
 548         }
 549
 550         return 0;
 551 }
 552
 553 static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad)
 554 {
 555         struct device *dev = &kpad->client->dev;
 556         const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
 557         const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
 558         int error;
 559
 560         if (!kpad->export_gpio)
 561                 return;
 562
 563         if (gpio_data->teardown) {
 564                 error = gpio_data->teardown(kpad->client,
 565                                             kpad->gc.base, kpad->gc.ngpio,
 566                                             gpio_data->context);
 567                 if (error)
 568                         dev_warn(dev, "teardown failed %d\n", error);
 569         }
 570
 571         error = gpiochip_remove(&kpad->gc);
 572         if (error)
 573                 dev_warn(dev, "gpiochip_remove failed %d\n", error);
 574 }
 575 #else
 576 static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
 577 {
 578         return 0;
 579 }
 580
 581 static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad)
 582 {
 583 }
 584 #endif
 585
 586 static void adp5589_report_switches(struct adp5589_kpad *kpad,
 587                                     int key, int key_val)
 588 {
 589         int i;
 590
 591         for (i = 0; i < kpad->gpimapsize; i++) {
 592                 if (key_val == kpad->gpimap[i].pin) {
 593                         input_report_switch(kpad->input,
 594                                             kpad->gpimap[i].sw_evt,
 595                                             key & KEY_EV_PRESSED);
 596                         break;
 597                 }
 598         }
 599 }
 600
 601 static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
 602 {
 603         int i;
 604
 605         for (i = 0; i < ev_cnt; i++) {
 606                 int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
 607                 int key_val = key & KEY_EV_MASK;
 608
 609                 if (key_val >= kpad->var->gpi_pin_base &&
 610                     key_val <= kpad->var->gpi_pin_end) {
 611                         adp5589_report_switches(kpad, key, key_val);
 612                 } else {
 613                         input_report_key(kpad->input,
 614                                          kpad->keycode[key_val - 1],
 615                                          key & KEY_EV_PRESSED);
 616                 }
 617         }
 618 }
 619
 620 static irqreturn_t adp5589_irq(int irq, void *handle)
 621 {
 622         struct adp5589_kpad *kpad = handle;
 623         struct i2c_client *client = kpad->client;
 624         int status, ev_cnt;
 625
 626         status = adp5589_read(client, ADP5589_5_INT_STATUS);
 627
 628         if (status & OVRFLOW_INT)       /* Unlikely and should never happen */
 629                 dev_err(&client->dev, "Event Overflow Error\n");
 630
 631         if (status & EVENT_INT) {
 632                 ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
 633                 if (ev_cnt) {
 634                         adp5589_report_events(kpad, ev_cnt);
 635                         input_sync(kpad->input);
 636                 }
 637         }
 638
 639         adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
 640
 641         return IRQ_HANDLED;
 642 }
 643
 644 static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad,
 645                                         unsigned short key)
 646 {
 647         int i;
 648
 649         for (i = 0; i < kpad->var->keymapsize; i++)
 650                 if (key == kpad->keycode[i])
 651                         return (i + 1) | KEY_EV_PRESSED;
 652
 653         dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
 654
 655         return -EINVAL;
 656 }
 657
 658 static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
 659 {
 660         struct i2c_client *client = kpad->client;
 661         const struct adp5589_kpad_platform_data *pdata =
 662                 client->dev.platform_data;
 663         u8 (*reg) (u8) = kpad->var->reg;
 664         unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
 665         unsigned char pull_mask = 0;
 666         int i, ret;
 667
 668         ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
 669                             pdata->keypad_en_mask & kpad->var->row_mask);
 670         ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
 671                              (pdata->keypad_en_mask >> kpad->var->col_shift) &
 672                              kpad->var->col_mask);
 673
 674         if (!kpad->is_adp5585)
 675                 ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
 676                                      (pdata->keypad_en_mask >> 16) & 0xFF);
 677
 678         if (!kpad->is_adp5585 && pdata->en_keylock) {
 679                 ret |= adp5589_write(client, ADP5589_UNLOCK1,
 680                                      pdata->unlock_key1);
 681                 ret |= adp5589_write(client, ADP5589_UNLOCK2,
 682                                      pdata->unlock_key2);
 683                 ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
 684                                      pdata->unlock_timer & LTIME_MASK);
 685                 ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
 686         }
 687
 688         for (i = 0; i < KEYP_MAX_EVENT; i++)
 689                 ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
 690
 691         for (i = 0; i < pdata->gpimapsize; i++) {
 692                 unsigned short pin = pdata->gpimap[i].pin;
 693
 694                 if (pin <= kpad->var->gpi_pin_row_end) {
 695                         evt_mode1 |= (1 << (pin - kpad->var->gpi_pin_row_base));
 696                 } else {
 697                         evt_mode2 |=
 698                             ((1 << (pin - kpad->var->gpi_pin_col_base)) & 0xFF);
 699                         if (!kpad->is_adp5585)
 700                                 evt_mode3 |= ((1 << (pin -
 701                                         kpad->var->gpi_pin_col_base)) >> 8);
 702                 }
 703         }
 704
 705         if (pdata->gpimapsize) {
 706                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
 707                                      evt_mode1);
 708                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
 709                                      evt_mode2);
 710                 if (!kpad->is_adp5585)
 711                         ret |= adp5589_write(client,
 712                                              reg(ADP5589_GPI_EVENT_EN_C),
 713                                              evt_mode3);
 714         }
 715
 716         if (pdata->pull_dis_mask & pdata->pullup_en_100k &
 717                 pdata->pullup_en_300k & pdata->pulldown_en_300k)
 718                 dev_warn(&client->dev, "Conflicting pull resistor config\n");
 719
 720         for (i = 0; i <= kpad->var->max_row_num; i++) {
 721                 unsigned val = 0, bit = (1 << i);
 722                 if (pdata->pullup_en_300k & bit)
 723                         val = 0;
 724                 else if (pdata->pulldown_en_300k & bit)
 725                         val = 1;
 726                 else if (pdata->pullup_en_100k & bit)
 727                         val = 2;
 728                 else if (pdata->pull_dis_mask & bit)
 729                         val = 3;
 730
 731                 pull_mask |= val << (2 * (i & 0x3));
 732
 733                 if (i == 3 || i == kpad->var->max_row_num) {
 734                         ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
 735                                              + (i >> 2), pull_mask);
 736                         pull_mask = 0;
 737                 }
 738         }
 739
 740         for (i = 0; i <= kpad->var->max_col_num; i++) {
 741                 unsigned val = 0, bit = 1 << (i + kpad->var->col_shift);
 742                 if (pdata->pullup_en_300k & bit)
 743                         val = 0;
 744                 else if (pdata->pulldown_en_300k & bit)
 745                         val = 1;
 746                 else if (pdata->pullup_en_100k & bit)
 747                         val = 2;
 748                 else if (pdata->pull_dis_mask & bit)
 749                         val = 3;
 750
 751                 pull_mask |= val << (2 * (i & 0x3));
 752
 753                 if (i == 3 || i == kpad->var->max_col_num) {
 754                         ret |= adp5589_write(client,
 755                                              reg(ADP5585_RPULL_CONFIG_C) +
 756                                              (i >> 2), pull_mask);
 757                         pull_mask = 0;
 758                 }
 759         }
 760
 761         if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
 762                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
 763                                      adp5589_get_evcode(kpad,
 764                                                         pdata->reset1_key_1));
 765                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
 766                                      adp5589_get_evcode(kpad,
 767                                                         pdata->reset1_key_2));
 768                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
 769                                      adp5589_get_evcode(kpad,
 770                                                         pdata->reset1_key_3));
 771                 kpad->extend_cfg |= R4_EXTEND_CFG;
 772         }
 773
 774         if (pdata->reset2_key_1 && pdata->reset2_key_2) {
 775                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
 776                                      adp5589_get_evcode(kpad,
 777                                                         pdata->reset2_key_1));
 778                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
 779                                      adp5589_get_evcode(kpad,
 780                                                         pdata->reset2_key_2));
 781                 kpad->extend_cfg |= C4_EXTEND_CFG;
 782         }
 783
 784         if (kpad->extend_cfg) {
 785                 ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
 786                                      pdata->reset_cfg);
 787                 ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
 788                                      kpad->extend_cfg);
 789         }
 790
 791         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
 792                             pdata->debounce_dis_mask & kpad->var->row_mask);
 793
 794         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
 795                              (pdata->debounce_dis_mask >> kpad->var->col_shift)
 796                              & kpad->var->col_mask);
 797
 798         if (!kpad->is_adp5585)
 799                 ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
 800                                      (pdata->debounce_dis_mask >> 16) & 0xFF);
 801
 802         ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
 803                              pdata->scan_cycle_time & PTIME_MASK);
 804         ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
 805                              (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
 806                              LOGIC1_INT | OVRFLOW_INT |
 807                              (kpad->is_adp5585 ? 0 : LOCK_INT) |
 808                              GPI_INT | EVENT_INT);      /* Status is W1C */
 809
 810         ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
 811                              INT_CFG | OSC_EN | CORE_CLK(3));
 812         ret |= adp5589_write(client, reg(ADP5589_INT_EN),
 813                              OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
 814
 815         if (ret < 0) {
 816                 dev_err(&client->dev, "Write Error\n");
 817                 return ret;
 818         }
 819
 820         return 0;
 821 }
 822
 823 static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad)
 824 {
 825         int gpi_stat_tmp, pin_loc;
 826         int i;
 827         int gpi_stat1 = adp5589_read(kpad->client,
 828                                      kpad->var->reg(ADP5589_GPI_STATUS_A));
 829         int gpi_stat2 = adp5589_read(kpad->client,
 830                                      kpad->var->reg(ADP5589_GPI_STATUS_B));
 831         int gpi_stat3 = !kpad->is_adp5585 ?
 832                         adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
 833
 834         for (i = 0; i < kpad->gpimapsize; i++) {
 835                 unsigned short pin = kpad->gpimap[i].pin;
 836
 837                 if (pin <= kpad->var->gpi_pin_row_end) {
 838                         gpi_stat_tmp = gpi_stat1;
 839                         pin_loc = pin - kpad->var->gpi_pin_row_base;
 840                 } else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
 841                         gpi_stat_tmp = gpi_stat2;
 842                         pin_loc = pin - kpad->var->gpi_pin_col_base;
 843                 } else {
 844                         gpi_stat_tmp = gpi_stat3;
 845                         pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
 846                 }
 847
 848                 if (gpi_stat_tmp < 0) {
 849                         dev_err(&kpad->client->dev,
 850                                 "Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
 851                                 pin);
 852                         gpi_stat_tmp = 0;
 853                 }
 854
 855                 input_report_switch(kpad->input,
 856                                     kpad->gpimap[i].sw_evt,
 857                                     !(gpi_stat_tmp & (1 << pin_loc)));
 858         }
 859
 860         input_sync(kpad->input);
 861 }
 862
 863 static int __devinit adp5589_probe(struct i2c_client *client,
 864                                    const struct i2c_device_id *id)
 865 {
 866         struct adp5589_kpad *kpad;
 867         const struct adp5589_kpad_platform_data *pdata =
 868                 client->dev.platform_data;
 869         struct input_dev *input;
 870         unsigned int revid;
 871         int ret, i;
 872         int error;
 873
 874         if (!i2c_check_functionality(client->adapter,
 875                                      I2C_FUNC_SMBUS_BYTE_DATA)) {
 876                 dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
 877                 return -EIO;
 878         }
 879
 880         if (!pdata) {
 881                 dev_err(&client->dev, "no platform data?\n");
 882                 return -EINVAL;
 883         }
 884
 885         kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
 886         if (!kpad)
 887                 return -ENOMEM;
 888
 889         switch (id->driver_data) {
 890         case ADP5585_02:
 891                 kpad->adp5585_support_row5 = true;
 892         case ADP5585_01:
 893                 kpad->is_adp5585 = true;
 894                 kpad->var = &const_adp5585;
 895                 break;
 896         case ADP5589:
 897                 kpad->var = &const_adp5589;
 898                 break;
 899         }
 900
 901         if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
 902                         (pdata->keypad_en_mask >> kpad->var->col_shift)) ||
 903                         !pdata->keymap) {
 904                 dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
 905                 error = -EINVAL;
 906                 goto err_free_mem;
 907         }
 908
 909         if (pdata->keymapsize != kpad->var->keymapsize) {
 910                 dev_err(&client->dev, "invalid keymapsize\n");
 911                 error = -EINVAL;
 912                 goto err_free_mem;
 913         }
 914
 915         if (!pdata->gpimap && pdata->gpimapsize) {
 916                 dev_err(&client->dev, "invalid gpimap from pdata\n");
 917                 error = -EINVAL;
 918                 goto err_free_mem;
 919         }
 920
 921         if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
 922                 dev_err(&client->dev, "invalid gpimapsize\n");
 923                 error = -EINVAL;
 924                 goto err_free_mem;
 925         }
 926
 927         for (i = 0; i < pdata->gpimapsize; i++) {
 928                 unsigned short pin = pdata->gpimap[i].pin;
 929
 930                 if (pin < kpad->var->gpi_pin_base ||
 931                                 pin > kpad->var->gpi_pin_end) {
 932                         dev_err(&client->dev, "invalid gpi pin data\n");
 933                         error = -EINVAL;
 934                         goto err_free_mem;
 935                 }
 936
 937                 if ((1 << (pin - kpad->var->gpi_pin_row_base)) &
 938                                 pdata->keypad_en_mask) {
 939                         dev_err(&client->dev, "invalid gpi row/col data\n");
 940                         error = -EINVAL;
 941                         goto err_free_mem;
 942                 }
 943         }
 944
 945         if (!client->irq) {
 946                 dev_err(&client->dev, "no IRQ?\n");
 947                 error = -EINVAL;
 948                 goto err_free_mem;
 949         }
 950
 951         input = input_allocate_device();
 952         if (!input) {
 953                 error = -ENOMEM;
 954                 goto err_free_mem;
 955         }
 956
 957         kpad->client = client;
 958         kpad->input = input;
 959
 960         ret = adp5589_read(client, ADP5589_5_ID);
 961         if (ret < 0) {
 962                 error = ret;
 963                 goto err_free_input;
 964         }
 965
 966         revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
 967
 968         input->name = client->name;
 969         input->phys = "adp5589-keys/input0";
 970         input->dev.parent = &client->dev;
 971
 972         input_set_drvdata(input, kpad);
 973
 974         input->id.bustype = BUS_I2C;
 975         input->id.vendor = 0x0001;
 976         input->id.product = 0x0001;
 977         input->id.version = revid;
 978
 979         input->keycodesize = sizeof(kpad->keycode[0]);
 980         input->keycodemax = pdata->keymapsize;
 981         input->keycode = kpad->keycode;
 982
 983         memcpy(kpad->keycode, pdata->keymap,
 984                pdata->keymapsize * input->keycodesize);
 985
 986         kpad->gpimap = pdata->gpimap;
 987         kpad->gpimapsize = pdata->gpimapsize;
 988
 989         /* setup input device */
 990         __set_bit(EV_KEY, input->evbit);
 991
 992         if (pdata->repeat)
 993                 __set_bit(EV_REP, input->evbit);
 994
 995         for (i = 0; i < input->keycodemax; i++)
 996                 __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
 997         __clear_bit(KEY_RESERVED, input->keybit);
 998
 999         if (kpad->gpimapsize)
1000                 __set_bit(EV_SW, input->evbit);
1001         for (i = 0; i < kpad->gpimapsize; i++)
1002                 __set_bit(kpad->gpimap[i].sw_evt, input->swbit);
1003
1004         error = input_register_device(input);
1005         if (error) {
1006                 dev_err(&client->dev, "unable to register input device\n");
1007                 goto err_free_input;
1008         }
1009
1010         error = request_threaded_irq(client->irq, NULL, adp5589_irq,
1011                                      IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
1012                                      client->dev.driver->name, kpad);
1013         if (error) {
1014                 dev_err(&client->dev, "irq %d busy?\n", client->irq);
1015                 goto err_unreg_dev;
1016         }
1017
1018         error = adp5589_setup(kpad);
1019         if (error)
1020                 goto err_free_irq;
1021
1022         if (kpad->gpimapsize)
1023                 adp5589_report_switch_state(kpad);
1024
1025         error = adp5589_gpio_add(kpad);
1026         if (error)
1027                 goto err_free_irq;
1028
1029         device_init_wakeup(&client->dev, 1);
1030         i2c_set_clientdata(client, kpad);
1031
1032         dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
1033         return 0;
1034
1035 err_free_irq:
1036         free_irq(client->irq, kpad);
1037 err_unreg_dev:
1038         input_unregister_device(input);
1039         input = NULL;
1040 err_free_input:
1041         input_free_device(input);
1042 err_free_mem:
1043         kfree(kpad);
1044
1045         return error;
1046 }
1047
1048 static int __devexit adp5589_remove(struct i2c_client *client)
1049 {
1050         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
1051
1052         adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
1053         free_irq(client->irq, kpad);
1054         input_unregister_device(kpad->input);
1055         adp5589_gpio_remove(kpad);
1056         kfree(kpad);
1057
1058         return 0;
1059 }
1060
1061 #ifdef CONFIG_PM_SLEEP
1062 static int adp5589_suspend(struct device *dev)
1063 {
1064         struct adp5589_kpad *kpad = dev_get_drvdata(dev);
1065         struct i2c_client *client = kpad->client;
1066
1067         disable_irq(client->irq);
1068
1069         if (device_may_wakeup(&client->dev))
1070                 enable_irq_wake(client->irq);
1071
1072         return 0;
1073 }
1074
1075 static int adp5589_resume(struct device *dev)
1076 {
1077         struct adp5589_kpad *kpad = dev_get_drvdata(dev);
1078         struct i2c_client *client = kpad->client;
1079
1080         if (device_may_wakeup(&client->dev))
1081                 disable_irq_wake(client->irq);
1082
1083         enable_irq(client->irq);
1084
1085         return 0;
1086 }
1087 #endif
1088
1089 static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
1090
1091 static const struct i2c_device_id adp5589_id[] = {
1092         {"adp5589-keys", ADP5589},
1093         {"adp5585-keys", ADP5585_01},
1094         {"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
1095         {}
1096 };
1097
1098 MODULE_DEVICE_TABLE(i2c, adp5589_id);
1099
1100 static struct i2c_driver adp5589_driver = {
1101         .driver = {
1102                 .name = KBUILD_MODNAME,
1103                 .owner = THIS_MODULE,
1104                 .pm = &adp5589_dev_pm_ops,
1105         },
1106         .probe = adp5589_probe,
1107         .remove = __devexit_p(adp5589_remove),
1108         .id_table = adp5589_id,
1109 };
1110
1111 static int __init adp5589_init(void)
1112 {
1113         return i2c_add_driver(&adp5589_driver);
1114 }
1115 module_init(adp5589_init);
1116
1117 static void __exit adp5589_exit(void)
1118 {
1119         i2c_del_driver(&adp5589_driver);
1120 }
1121 module_exit(adp5589_exit);
1122
1123 MODULE_LICENSE("GPL");
1124 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
1125 MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");