drivers/input/keyboard/adp5589-keys.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Description:  keypad driver for ADP5589, ADP5585
   4  *               I2C QWERTY Keypad and IO Expander
   5  * Bugs: Enter bugs at http://blackfin.uclinux.org/
   6  *
   7  * Copyright (C) 2010-2011 Analog Devices Inc.
   8  */
   9
  10 #include <linux/bitops.h>
  11 #include <linux/module.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/pm_wakeirq.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/input.h>
  20 #include <linux/i2c.h>
  21 #include <linux/gpio/driver.h>
  22 #include <linux/slab.h>
  23
  24 #include <linux/input/adp5589.h>
  25
  26 /* ADP5589/ADP5585 Common Registers */
  27 #define ADP5589_5_ID                    0x00
  28 #define ADP5589_5_INT_STATUS            0x01
  29 #define ADP5589_5_STATUS                0x02
  30 #define ADP5589_5_FIFO_1                0x03
  31 #define ADP5589_5_FIFO_2                0x04
  32 #define ADP5589_5_FIFO_3                0x05
  33 #define ADP5589_5_FIFO_4                0x06
  34 #define ADP5589_5_FIFO_5                0x07
  35 #define ADP5589_5_FIFO_6                0x08
  36 #define ADP5589_5_FIFO_7                0x09
  37 #define ADP5589_5_FIFO_8                0x0A
  38 #define ADP5589_5_FIFO_9                0x0B
  39 #define ADP5589_5_FIFO_10               0x0C
  40 #define ADP5589_5_FIFO_11               0x0D
  41 #define ADP5589_5_FIFO_12               0x0E
  42 #define ADP5589_5_FIFO_13               0x0F
  43 #define ADP5589_5_FIFO_14               0x10
  44 #define ADP5589_5_FIFO_15               0x11
  45 #define ADP5589_5_FIFO_16               0x12
  46 #define ADP5589_5_GPI_INT_STAT_A        0x13
  47 #define ADP5589_5_GPI_INT_STAT_B        0x14
  48
  49 /* ADP5589 Registers */
  50 #define ADP5589_GPI_INT_STAT_C          0x15
  51 #define ADP5589_GPI_STATUS_A            0x16
  52 #define ADP5589_GPI_STATUS_B            0x17
  53 #define ADP5589_GPI_STATUS_C            0x18
  54 #define ADP5589_RPULL_CONFIG_A          0x19
  55 #define ADP5589_RPULL_CONFIG_B          0x1A
  56 #define ADP5589_RPULL_CONFIG_C          0x1B
  57 #define ADP5589_RPULL_CONFIG_D          0x1C
  58 #define ADP5589_RPULL_CONFIG_E          0x1D
  59 #define ADP5589_GPI_INT_LEVEL_A         0x1E
  60 #define ADP5589_GPI_INT_LEVEL_B         0x1F
  61 #define ADP5589_GPI_INT_LEVEL_C         0x20
  62 #define ADP5589_GPI_EVENT_EN_A          0x21
  63 #define ADP5589_GPI_EVENT_EN_B          0x22
  64 #define ADP5589_GPI_EVENT_EN_C          0x23
  65 #define ADP5589_GPI_INTERRUPT_EN_A      0x24
  66 #define ADP5589_GPI_INTERRUPT_EN_B      0x25
  67 #define ADP5589_GPI_INTERRUPT_EN_C      0x26
  68 #define ADP5589_DEBOUNCE_DIS_A          0x27
  69 #define ADP5589_DEBOUNCE_DIS_B          0x28
  70 #define ADP5589_DEBOUNCE_DIS_C          0x29
  71 #define ADP5589_GPO_DATA_OUT_A          0x2A
  72 #define ADP5589_GPO_DATA_OUT_B          0x2B
  73 #define ADP5589_GPO_DATA_OUT_C          0x2C
  74 #define ADP5589_GPO_OUT_MODE_A          0x2D
  75 #define ADP5589_GPO_OUT_MODE_B          0x2E
  76 #define ADP5589_GPO_OUT_MODE_C          0x2F
  77 #define ADP5589_GPIO_DIRECTION_A        0x30
  78 #define ADP5589_GPIO_DIRECTION_B        0x31
  79 #define ADP5589_GPIO_DIRECTION_C        0x32
  80 #define ADP5589_UNLOCK1                 0x33
  81 #define ADP5589_UNLOCK2                 0x34
  82 #define ADP5589_EXT_LOCK_EVENT          0x35
  83 #define ADP5589_UNLOCK_TIMERS           0x36
  84 #define ADP5589_LOCK_CFG                0x37
  85 #define ADP5589_RESET1_EVENT_A          0x38
  86 #define ADP5589_RESET1_EVENT_B          0x39
  87 #define ADP5589_RESET1_EVENT_C          0x3A
  88 #define ADP5589_RESET2_EVENT_A          0x3B
  89 #define ADP5589_RESET2_EVENT_B          0x3C
  90 #define ADP5589_RESET_CFG               0x3D
  91 #define ADP5589_PWM_OFFT_LOW            0x3E
  92 #define ADP5589_PWM_OFFT_HIGH           0x3F
  93 #define ADP5589_PWM_ONT_LOW             0x40
  94 #define ADP5589_PWM_ONT_HIGH            0x41
  95 #define ADP5589_PWM_CFG                 0x42
  96 #define ADP5589_CLOCK_DIV_CFG           0x43
  97 #define ADP5589_LOGIC_1_CFG             0x44
  98 #define ADP5589_LOGIC_2_CFG             0x45
  99 #define ADP5589_LOGIC_FF_CFG            0x46
 100 #define ADP5589_LOGIC_INT_EVENT_EN      0x47
 101 #define ADP5589_POLL_PTIME_CFG          0x48
 102 #define ADP5589_PIN_CONFIG_A            0x49
 103 #define ADP5589_PIN_CONFIG_B            0x4A
 104 #define ADP5589_PIN_CONFIG_C            0x4B
 105 #define ADP5589_PIN_CONFIG_D            0x4C
 106 #define ADP5589_GENERAL_CFG             0x4D
 107 #define ADP5589_INT_EN                  0x4E
 108
 109 /* ADP5585 Registers */
 110 #define ADP5585_GPI_STATUS_A            0x15
 111 #define ADP5585_GPI_STATUS_B            0x16
 112 #define ADP5585_RPULL_CONFIG_A          0x17
 113 #define ADP5585_RPULL_CONFIG_B          0x18
 114 #define ADP5585_RPULL_CONFIG_C          0x19
 115 #define ADP5585_RPULL_CONFIG_D          0x1A
 116 #define ADP5585_GPI_INT_LEVEL_A         0x1B
 117 #define ADP5585_GPI_INT_LEVEL_B         0x1C
 118 #define ADP5585_GPI_EVENT_EN_A          0x1D
 119 #define ADP5585_GPI_EVENT_EN_B          0x1E
 120 #define ADP5585_GPI_INTERRUPT_EN_A      0x1F
 121 #define ADP5585_GPI_INTERRUPT_EN_B      0x20
 122 #define ADP5585_DEBOUNCE_DIS_A          0x21
 123 #define ADP5585_DEBOUNCE_DIS_B          0x22
 124 #define ADP5585_GPO_DATA_OUT_A          0x23
 125 #define ADP5585_GPO_DATA_OUT_B          0x24
 126 #define ADP5585_GPO_OUT_MODE_A          0x25
 127 #define ADP5585_GPO_OUT_MODE_B          0x26
 128 #define ADP5585_GPIO_DIRECTION_A        0x27
 129 #define ADP5585_GPIO_DIRECTION_B        0x28
 130 #define ADP5585_RESET1_EVENT_A          0x29
 131 #define ADP5585_RESET1_EVENT_B          0x2A
 132 #define ADP5585_RESET1_EVENT_C          0x2B
 133 #define ADP5585_RESET2_EVENT_A          0x2C
 134 #define ADP5585_RESET2_EVENT_B          0x2D
 135 #define ADP5585_RESET_CFG               0x2E
 136 #define ADP5585_PWM_OFFT_LOW            0x2F
 137 #define ADP5585_PWM_OFFT_HIGH           0x30
 138 #define ADP5585_PWM_ONT_LOW             0x31
 139 #define ADP5585_PWM_ONT_HIGH            0x32
 140 #define ADP5585_PWM_CFG                 0x33
 141 #define ADP5585_LOGIC_CFG               0x34
 142 #define ADP5585_LOGIC_FF_CFG            0x35
 143 #define ADP5585_LOGIC_INT_EVENT_EN      0x36
 144 #define ADP5585_POLL_PTIME_CFG          0x37
 145 #define ADP5585_PIN_CONFIG_A            0x38
 146 #define ADP5585_PIN_CONFIG_B            0x39
 147 #define ADP5585_PIN_CONFIG_D            0x3A
 148 #define ADP5585_GENERAL_CFG             0x3B
 149 #define ADP5585_INT_EN                  0x3C
 150
 151 /* ID Register */
 152 #define ADP5589_5_DEVICE_ID_MASK        0xF
 153 #define ADP5589_5_MAN_ID_MASK           0xF
 154 #define ADP5589_5_MAN_ID_SHIFT          4
 155 #define ADP5589_5_MAN_ID                0x02
 156
 157 /* GENERAL_CFG Register */
 158 #define OSC_EN          BIT(7)
 159 #define CORE_CLK(x)     (((x) & 0x3) << 5)
 160 #define LCK_TRK_LOGIC   BIT(4)          /* ADP5589 only */
 161 #define LCK_TRK_GPI     BIT(3)          /* ADP5589 only */
 162 #define INT_CFG         BIT(1)
 163 #define RST_CFG         BIT(0)
 164
 165 /* INT_EN Register */
 166 #define LOGIC2_IEN      BIT(5)          /* ADP5589 only */
 167 #define LOGIC1_IEN      BIT(4)
 168 #define LOCK_IEN        BIT(3)          /* ADP5589 only */
 169 #define OVRFLOW_IEN     BIT(2)
 170 #define GPI_IEN         BIT(1)
 171 #define EVENT_IEN       BIT(0)
 172
 173 /* Interrupt Status Register */
 174 #define LOGIC2_INT      BIT(5)          /* ADP5589 only */
 175 #define LOGIC1_INT      BIT(4)
 176 #define LOCK_INT        BIT(3)          /* ADP5589 only */
 177 #define OVRFLOW_INT     BIT(2)
 178 #define GPI_INT         BIT(1)
 179 #define EVENT_INT       BIT(0)
 180
 181 /* STATUS Register */
 182 #define LOGIC2_STAT     BIT(7)          /* ADP5589 only */
 183 #define LOGIC1_STAT     BIT(6)
 184 #define LOCK_STAT       BIT(5)          /* ADP5589 only */
 185 #define KEC             0x1F
 186
 187 /* PIN_CONFIG_D Register */
 188 #define C4_EXTEND_CFG   BIT(6)          /* RESET2 */
 189 #define R4_EXTEND_CFG   BIT(5)          /* RESET1 */
 190
 191 /* LOCK_CFG */
 192 #define LOCK_EN         BIT(0)
 193
 194 #define PTIME_MASK      0x3
 195 #define LTIME_MASK      0x3             /* ADP5589 only */
 196
 197 /* Key Event Register xy */
 198 #define KEY_EV_PRESSED  BIT(7)
 199 #define KEY_EV_MASK     0x7F
 200
 201 #define KEYP_MAX_EVENT          16
 202 #define ADP5589_MAXGPIO         19
 203 #define ADP5585_MAXGPIO         11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
 204
 205 enum {
 206         ADP5589,
 207         ADP5585_01,
 208         ADP5585_02
 209 };
 210
 211 struct adp_constants {
 212         u8 maxgpio;
 213         u8 keymapsize;
 214         u8 gpi_pin_row_base;
 215         u8 gpi_pin_row_end;
 216         u8 gpi_pin_col_base;
 217         u8 gpi_pin_base;
 218         u8 gpi_pin_end;
 219         u8 gpimapsize_max;
 220         u8 max_row_num;
 221         u8 max_col_num;
 222         u8 row_mask;
 223         u8 col_mask;
 224         u8 col_shift;
 225         u8 c4_extend_cfg;
 226         u8 (*bank) (u8 offset);
 227         u8 (*bit) (u8 offset);
 228         u8 (*reg) (u8 reg);
 229 };
 230
 231 struct adp5589_kpad {
 232         struct i2c_client *client;
 233         struct input_dev *input;
 234         const struct adp_constants *var;
 235         unsigned short keycode[ADP5589_KEYMAPSIZE];
 236         const struct adp5589_gpi_map *gpimap;
 237         unsigned short gpimapsize;
 238         unsigned extend_cfg;
 239         bool is_adp5585;
 240         bool support_row5;
 241 #ifdef CONFIG_GPIOLIB
 242         unsigned char gpiomap[ADP5589_MAXGPIO];
 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 = gpiochip_get_data(chip);
 392         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 393         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 394         int val;
 395
 396         mutex_lock(&kpad->gpio_lock);
 397         if (kpad->dir[bank] & bit)
 398                 val = kpad->dat_out[bank];
 399         else
 400                 val = adp5589_read(kpad->client,
 401                                    kpad->var->reg(ADP5589_GPI_STATUS_A) + bank);
 402         mutex_unlock(&kpad->gpio_lock);
 403
 404         return !!(val & bit);
 405 }
 406
 407 static void adp5589_gpio_set_value(struct gpio_chip *chip,
 408                                    unsigned off, int val)
 409 {
 410         struct adp5589_kpad *kpad = gpiochip_get_data(chip);
 411         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 412         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 413
 414         guard(mutex)(&kpad->gpio_lock);
 415
 416         if (val)
 417                 kpad->dat_out[bank] |= bit;
 418         else
 419                 kpad->dat_out[bank] &= ~bit;
 420
 421         adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
 422                       bank, kpad->dat_out[bank]);
 423 }
 424
 425 static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
 426 {
 427         struct adp5589_kpad *kpad = gpiochip_get_data(chip);
 428         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 429         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 430
 431         guard(mutex)(&kpad->gpio_lock);
 432
 433         kpad->dir[bank] &= ~bit;
 434         return adp5589_write(kpad->client,
 435                              kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 436                              kpad->dir[bank]);
 437 }
 438
 439 static int adp5589_gpio_direction_output(struct gpio_chip *chip,
 440                                          unsigned off, int val)
 441 {
 442         struct adp5589_kpad *kpad = gpiochip_get_data(chip);
 443         unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
 444         unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 445         int error;
 446
 447         guard(mutex)(&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         error = adp5589_write(kpad->client,
 457                               kpad->var->reg(ADP5589_GPO_DATA_OUT_A) + bank,
 458                               kpad->dat_out[bank]);
 459         if (error)
 460                 return error;
 461
 462         error = adp5589_write(kpad->client,
 463                               kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 464                               kpad->dir[bank]);
 465         if (error)
 466                 return error;
 467
 468         return 0;
 469 }
 470
 471 static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
 472                                 const struct adp5589_kpad_platform_data *pdata)
 473 {
 474         bool pin_used[ADP5589_MAXGPIO];
 475         int n_unused = 0;
 476         int i;
 477
 478         memset(pin_used, false, sizeof(pin_used));
 479
 480         for (i = 0; i < kpad->var->maxgpio; i++)
 481                 if (pdata->keypad_en_mask & BIT(i))
 482                         pin_used[i] = true;
 483
 484         for (i = 0; i < kpad->gpimapsize; i++)
 485                 pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
 486
 487         if (kpad->extend_cfg & R4_EXTEND_CFG)
 488                 pin_used[4] = true;
 489
 490         if (kpad->extend_cfg & C4_EXTEND_CFG)
 491                 pin_used[kpad->var->c4_extend_cfg] = true;
 492
 493         if (!kpad->support_row5)
 494                 pin_used[5] = true;
 495
 496         for (i = 0; i < kpad->var->maxgpio; i++)
 497                 if (!pin_used[i])
 498                         kpad->gpiomap[n_unused++] = i;
 499
 500         return n_unused;
 501 }
 502
 503 static int adp5589_gpio_add(struct adp5589_kpad *kpad)
 504 {
 505         struct device *dev = &kpad->client->dev;
 506         const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
 507         const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
 508         int i, error;
 509
 510         if (!gpio_data)
 511                 return 0;
 512
 513         kpad->gc.parent = dev;
 514         kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
 515         if (kpad->gc.ngpio == 0) {
 516                 dev_info(dev, "No unused gpios left to export\n");
 517                 return 0;
 518         }
 519
 520         kpad->gc.direction_input = adp5589_gpio_direction_input;
 521         kpad->gc.direction_output = adp5589_gpio_direction_output;
 522         kpad->gc.get = adp5589_gpio_get_value;
 523         kpad->gc.set = adp5589_gpio_set_value;
 524         kpad->gc.can_sleep = 1;
 525
 526         kpad->gc.base = gpio_data->gpio_start;
 527         kpad->gc.label = kpad->client->name;
 528         kpad->gc.owner = THIS_MODULE;
 529
 530         mutex_init(&kpad->gpio_lock);
 531
 532         error = devm_gpiochip_add_data(dev, &kpad->gc, kpad);
 533         if (error)
 534                 return error;
 535
 536         for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
 537                 kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
 538                                                 ADP5589_GPO_DATA_OUT_A) + i);
 539                 kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
 540                                             ADP5589_GPIO_DIRECTION_A) + i);
 541         }
 542
 543         return 0;
 544 }
 545 #else
 546 static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
 547 {
 548         return 0;
 549 }
 550 #endif
 551
 552 static void adp5589_report_switches(struct adp5589_kpad *kpad,
 553                                     int key, int key_val)
 554 {
 555         int i;
 556
 557         for (i = 0; i < kpad->gpimapsize; i++) {
 558                 if (key_val == kpad->gpimap[i].pin) {
 559                         input_report_switch(kpad->input,
 560                                             kpad->gpimap[i].sw_evt,
 561                                             key & KEY_EV_PRESSED);
 562                         break;
 563                 }
 564         }
 565 }
 566
 567 static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
 568 {
 569         int i;
 570
 571         for (i = 0; i < ev_cnt; i++) {
 572                 int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
 573                 int key_val = key & KEY_EV_MASK;
 574
 575                 if (key_val >= kpad->var->gpi_pin_base &&
 576                     key_val <= kpad->var->gpi_pin_end) {
 577                         adp5589_report_switches(kpad, key, key_val);
 578                 } else {
 579                         input_report_key(kpad->input,
 580                                          kpad->keycode[key_val - 1],
 581                                          key & KEY_EV_PRESSED);
 582                 }
 583         }
 584 }
 585
 586 static irqreturn_t adp5589_irq(int irq, void *handle)
 587 {
 588         struct adp5589_kpad *kpad = handle;
 589         struct i2c_client *client = kpad->client;
 590         int status, ev_cnt;
 591
 592         status = adp5589_read(client, ADP5589_5_INT_STATUS);
 593
 594         if (status & OVRFLOW_INT)       /* Unlikely and should never happen */
 595                 dev_err(&client->dev, "Event Overflow Error\n");
 596
 597         if (status & EVENT_INT) {
 598                 ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
 599                 if (ev_cnt) {
 600                         adp5589_report_events(kpad, ev_cnt);
 601                         input_sync(kpad->input);
 602                 }
 603         }
 604
 605         adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
 606
 607         return IRQ_HANDLED;
 608 }
 609
 610 static int adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
 611 {
 612         int i;
 613
 614         for (i = 0; i < kpad->var->keymapsize; i++)
 615                 if (key == kpad->keycode[i])
 616                         return (i + 1) | KEY_EV_PRESSED;
 617
 618         dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
 619
 620         return -EINVAL;
 621 }
 622
 623 static int adp5589_setup(struct adp5589_kpad *kpad)
 624 {
 625         struct i2c_client *client = kpad->client;
 626         const struct adp5589_kpad_platform_data *pdata =
 627                 dev_get_platdata(&client->dev);
 628         u8 (*reg) (u8) = kpad->var->reg;
 629         unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
 630         unsigned char pull_mask = 0;
 631         int i, ret;
 632
 633         ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
 634                             pdata->keypad_en_mask & kpad->var->row_mask);
 635         ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
 636                              (pdata->keypad_en_mask >> kpad->var->col_shift) &
 637                              kpad->var->col_mask);
 638
 639         if (!kpad->is_adp5585)
 640                 ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
 641                                      (pdata->keypad_en_mask >> 16) & 0xFF);
 642
 643         if (!kpad->is_adp5585 && pdata->en_keylock) {
 644                 ret |= adp5589_write(client, ADP5589_UNLOCK1,
 645                                      pdata->unlock_key1);
 646                 ret |= adp5589_write(client, ADP5589_UNLOCK2,
 647                                      pdata->unlock_key2);
 648                 ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
 649                                      pdata->unlock_timer & LTIME_MASK);
 650                 ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
 651         }
 652
 653         for (i = 0; i < KEYP_MAX_EVENT; i++)
 654                 ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
 655
 656         for (i = 0; i < pdata->gpimapsize; i++) {
 657                 unsigned short pin = pdata->gpimap[i].pin;
 658
 659                 if (pin <= kpad->var->gpi_pin_row_end) {
 660                         evt_mode1 |= BIT(pin - kpad->var->gpi_pin_row_base);
 661                 } else {
 662                         evt_mode2 |=
 663                             BIT(pin - kpad->var->gpi_pin_col_base) & 0xFF;
 664                         if (!kpad->is_adp5585)
 665                                 evt_mode3 |=
 666                                     BIT(pin - kpad->var->gpi_pin_col_base) >> 8;
 667                 }
 668         }
 669
 670         if (pdata->gpimapsize) {
 671                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
 672                                      evt_mode1);
 673                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
 674                                      evt_mode2);
 675                 if (!kpad->is_adp5585)
 676                         ret |= adp5589_write(client,
 677                                              reg(ADP5589_GPI_EVENT_EN_C),
 678                                              evt_mode3);
 679         }
 680
 681         if (pdata->pull_dis_mask & pdata->pullup_en_100k &
 682                 pdata->pullup_en_300k & pdata->pulldown_en_300k)
 683                 dev_warn(&client->dev, "Conflicting pull resistor config\n");
 684
 685         for (i = 0; i <= kpad->var->max_row_num; i++) {
 686                 unsigned int val = 0, bit = BIT(i);
 687                 if (pdata->pullup_en_300k & bit)
 688                         val = 0;
 689                 else if (pdata->pulldown_en_300k & bit)
 690                         val = 1;
 691                 else if (pdata->pullup_en_100k & bit)
 692                         val = 2;
 693                 else if (pdata->pull_dis_mask & bit)
 694                         val = 3;
 695
 696                 pull_mask |= val << (2 * (i & 0x3));
 697
 698                 if (i % 4 == 3 || i == kpad->var->max_row_num) {
 699                         ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
 700                                              + (i >> 2), pull_mask);
 701                         pull_mask = 0;
 702                 }
 703         }
 704
 705         for (i = 0; i <= kpad->var->max_col_num; i++) {
 706                 unsigned int val = 0, bit = BIT(i + kpad->var->col_shift);
 707                 if (pdata->pullup_en_300k & bit)
 708                         val = 0;
 709                 else if (pdata->pulldown_en_300k & bit)
 710                         val = 1;
 711                 else if (pdata->pullup_en_100k & bit)
 712                         val = 2;
 713                 else if (pdata->pull_dis_mask & bit)
 714                         val = 3;
 715
 716                 pull_mask |= val << (2 * (i & 0x3));
 717
 718                 if (i % 4 == 3 || i == kpad->var->max_col_num) {
 719                         ret |= adp5589_write(client,
 720                                              reg(ADP5585_RPULL_CONFIG_C) +
 721                                              (i >> 2), pull_mask);
 722                         pull_mask = 0;
 723                 }
 724         }
 725
 726         if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
 727                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
 728                                      adp5589_get_evcode(kpad,
 729                                                         pdata->reset1_key_1));
 730                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
 731                                      adp5589_get_evcode(kpad,
 732                                                         pdata->reset1_key_2));
 733                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
 734                                      adp5589_get_evcode(kpad,
 735                                                         pdata->reset1_key_3));
 736                 kpad->extend_cfg |= R4_EXTEND_CFG;
 737         }
 738
 739         if (pdata->reset2_key_1 && pdata->reset2_key_2) {
 740                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
 741                                      adp5589_get_evcode(kpad,
 742                                                         pdata->reset2_key_1));
 743                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
 744                                      adp5589_get_evcode(kpad,
 745                                                         pdata->reset2_key_2));
 746                 kpad->extend_cfg |= C4_EXTEND_CFG;
 747         }
 748
 749         if (kpad->extend_cfg) {
 750                 ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
 751                                      pdata->reset_cfg);
 752                 ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
 753                                      kpad->extend_cfg);
 754         }
 755
 756         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
 757                             pdata->debounce_dis_mask & kpad->var->row_mask);
 758
 759         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
 760                              (pdata->debounce_dis_mask >> kpad->var->col_shift)
 761                              & kpad->var->col_mask);
 762
 763         if (!kpad->is_adp5585)
 764                 ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
 765                                      (pdata->debounce_dis_mask >> 16) & 0xFF);
 766
 767         ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
 768                              pdata->scan_cycle_time & PTIME_MASK);
 769         ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
 770                              (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
 771                              LOGIC1_INT | OVRFLOW_INT |
 772                              (kpad->is_adp5585 ? 0 : LOCK_INT) |
 773                              GPI_INT | EVENT_INT);      /* Status is W1C */
 774
 775         ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
 776                              INT_CFG | OSC_EN | CORE_CLK(3));
 777         ret |= adp5589_write(client, reg(ADP5589_INT_EN),
 778                              OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
 779
 780         if (ret < 0) {
 781                 dev_err(&client->dev, "Write Error\n");
 782                 return ret;
 783         }
 784
 785         return 0;
 786 }
 787
 788 static void adp5589_report_switch_state(struct adp5589_kpad *kpad)
 789 {
 790         int gpi_stat_tmp, pin_loc;
 791         int i;
 792         int gpi_stat1 = adp5589_read(kpad->client,
 793                                      kpad->var->reg(ADP5589_GPI_STATUS_A));
 794         int gpi_stat2 = adp5589_read(kpad->client,
 795                                      kpad->var->reg(ADP5589_GPI_STATUS_B));
 796         int gpi_stat3 = !kpad->is_adp5585 ?
 797                         adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
 798
 799         for (i = 0; i < kpad->gpimapsize; i++) {
 800                 unsigned short pin = kpad->gpimap[i].pin;
 801
 802                 if (pin <= kpad->var->gpi_pin_row_end) {
 803                         gpi_stat_tmp = gpi_stat1;
 804                         pin_loc = pin - kpad->var->gpi_pin_row_base;
 805                 } else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
 806                         gpi_stat_tmp = gpi_stat2;
 807                         pin_loc = pin - kpad->var->gpi_pin_col_base;
 808                 } else {
 809                         gpi_stat_tmp = gpi_stat3;
 810                         pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
 811                 }
 812
 813                 if (gpi_stat_tmp < 0) {
 814                         dev_err(&kpad->client->dev,
 815                                 "Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
 816                                 pin);
 817                         gpi_stat_tmp = 0;
 818                 }
 819
 820                 input_report_switch(kpad->input,
 821                                     kpad->gpimap[i].sw_evt,
 822                                     !(gpi_stat_tmp & BIT(pin_loc)));
 823         }
 824
 825         input_sync(kpad->input);
 826 }
 827
 828 static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
 829 {
 830         struct i2c_client *client = kpad->client;
 831         const struct adp5589_kpad_platform_data *pdata =
 832                 dev_get_platdata(&client->dev);
 833         struct input_dev *input;
 834         unsigned int i;
 835         int error;
 836
 837         if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
 838                         (pdata->keypad_en_mask >> kpad->var->col_shift)) ||
 839                         !pdata->keymap) {
 840                 dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
 841                 return -EINVAL;
 842         }
 843
 844         if (pdata->keymapsize != kpad->var->keymapsize) {
 845                 dev_err(&client->dev, "invalid keymapsize\n");
 846                 return -EINVAL;
 847         }
 848
 849         if (!pdata->gpimap && pdata->gpimapsize) {
 850                 dev_err(&client->dev, "invalid gpimap from pdata\n");
 851                 return -EINVAL;
 852         }
 853
 854         if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
 855                 dev_err(&client->dev, "invalid gpimapsize\n");
 856                 return -EINVAL;
 857         }
 858
 859         for (i = 0; i < pdata->gpimapsize; i++) {
 860                 unsigned short pin = pdata->gpimap[i].pin;
 861
 862                 if (pin < kpad->var->gpi_pin_base ||
 863                                 pin > kpad->var->gpi_pin_end) {
 864                         dev_err(&client->dev, "invalid gpi pin data\n");
 865                         return -EINVAL;
 866                 }
 867
 868                 if (BIT(pin - kpad->var->gpi_pin_row_base) &
 869                                 pdata->keypad_en_mask) {
 870                         dev_err(&client->dev, "invalid gpi row/col data\n");
 871                         return -EINVAL;
 872                 }
 873         }
 874
 875         if (!client->irq) {
 876                 dev_err(&client->dev, "no IRQ?\n");
 877                 return -EINVAL;
 878         }
 879
 880         input = devm_input_allocate_device(&client->dev);
 881         if (!input)
 882                 return -ENOMEM;
 883
 884         kpad->input = input;
 885
 886         input->name = client->name;
 887         input->phys = "adp5589-keys/input0";
 888         input->dev.parent = &client->dev;
 889
 890         input_set_drvdata(input, kpad);
 891
 892         input->id.bustype = BUS_I2C;
 893         input->id.vendor = 0x0001;
 894         input->id.product = 0x0001;
 895         input->id.version = revid;
 896
 897         input->keycodesize = sizeof(kpad->keycode[0]);
 898         input->keycodemax = pdata->keymapsize;
 899         input->keycode = kpad->keycode;
 900
 901         memcpy(kpad->keycode, pdata->keymap,
 902                pdata->keymapsize * input->keycodesize);
 903
 904         kpad->gpimap = pdata->gpimap;
 905         kpad->gpimapsize = pdata->gpimapsize;
 906
 907         /* setup input device */
 908         __set_bit(EV_KEY, input->evbit);
 909
 910         if (pdata->repeat)
 911                 __set_bit(EV_REP, input->evbit);
 912
 913         for (i = 0; i < input->keycodemax; i++)
 914                 if (kpad->keycode[i] <= KEY_MAX)
 915                         __set_bit(kpad->keycode[i], input->keybit);
 916         __clear_bit(KEY_RESERVED, input->keybit);
 917
 918         if (kpad->gpimapsize)
 919                 __set_bit(EV_SW, input->evbit);
 920         for (i = 0; i < kpad->gpimapsize; i++)
 921                 __set_bit(kpad->gpimap[i].sw_evt, input->swbit);
 922
 923         error = input_register_device(input);
 924         if (error) {
 925                 dev_err(&client->dev, "unable to register input device\n");
 926                 return error;
 927         }
 928
 929         error = devm_request_threaded_irq(&client->dev, client->irq,
 930                                           NULL, adp5589_irq,
 931                                           IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 932                                           client->dev.driver->name, kpad);
 933         if (error) {
 934                 dev_err(&client->dev, "unable to request irq %d\n", client->irq);
 935                 return error;
 936         }
 937
 938         return 0;
 939 }
 940
 941 static void adp5589_clear_config(void *data)
 942 {
 943         struct adp5589_kpad *kpad = data;
 944
 945         adp5589_write(kpad->client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
 946 }
 947
 948 static int adp5589_probe(struct i2c_client *client)
 949 {
 950         const struct i2c_device_id *id = i2c_client_get_device_id(client);
 951         struct adp5589_kpad *kpad;
 952         const struct adp5589_kpad_platform_data *pdata =
 953                 dev_get_platdata(&client->dev);
 954         unsigned int revid;
 955         int error, ret;
 956
 957         if (!i2c_check_functionality(client->adapter,
 958                                      I2C_FUNC_SMBUS_BYTE_DATA)) {
 959                 dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
 960                 return -EIO;
 961         }
 962
 963         if (!pdata) {
 964                 dev_err(&client->dev, "no platform data?\n");
 965                 return -EINVAL;
 966         }
 967
 968         kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL);
 969         if (!kpad)
 970                 return -ENOMEM;
 971
 972         kpad->client = client;
 973
 974         switch (id->driver_data) {
 975         case ADP5585_02:
 976                 kpad->support_row5 = true;
 977                 fallthrough;
 978         case ADP5585_01:
 979                 kpad->is_adp5585 = true;
 980                 kpad->var = &const_adp5585;
 981                 break;
 982         case ADP5589:
 983                 kpad->support_row5 = true;
 984                 kpad->var = &const_adp5589;
 985                 break;
 986         }
 987
 988         error = devm_add_action_or_reset(&client->dev, adp5589_clear_config,
 989                                          kpad);
 990         if (error)
 991                 return error;
 992
 993         ret = adp5589_read(client, ADP5589_5_ID);
 994         if (ret < 0)
 995                 return ret;
 996
 997         revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
 998
 999         if (pdata->keymapsize) {
1000                 error = adp5589_keypad_add(kpad, revid);
1001                 if (error)
1002                         return error;
1003         }
1004
1005         error = adp5589_setup(kpad);
1006         if (error)
1007                 return error;
1008
1009         if (kpad->gpimapsize)
1010                 adp5589_report_switch_state(kpad);
1011
1012         error = adp5589_gpio_add(kpad);
1013         if (error)
1014                 return error;
1015
1016         dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
1017         return 0;
1018 }
1019
1020 static int adp5589_suspend(struct device *dev)
1021 {
1022         struct i2c_client *client = to_i2c_client(dev);
1023         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
1024
1025         if (kpad->input)
1026                 disable_irq(client->irq);
1027
1028         return 0;
1029 }
1030
1031 static int adp5589_resume(struct device *dev)
1032 {
1033         struct i2c_client *client = to_i2c_client(dev);
1034         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
1035
1036         if (kpad->input)
1037                 enable_irq(client->irq);
1038
1039         return 0;
1040 }
1041
1042 static DEFINE_SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
1043
1044 static const struct i2c_device_id adp5589_id[] = {
1045         {"adp5589-keys", ADP5589},
1046         {"adp5585-keys", ADP5585_01},
1047         {"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
1048         {}
1049 };
1050
1051 MODULE_DEVICE_TABLE(i2c, adp5589_id);
1052
1053 static struct i2c_driver adp5589_driver = {
1054         .driver = {
1055                 .name = KBUILD_MODNAME,
1056                 .pm = pm_sleep_ptr(&adp5589_dev_pm_ops),
1057         },
1058         .probe = adp5589_probe,
1059         .id_table = adp5589_id,
1060 };
1061
1062 module_i2c_driver(adp5589_driver);
1063
1064 MODULE_LICENSE("GPL");
1065 MODULE_AUTHOR("Michael Hennerich <[email protected]>");
1066 MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");