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
 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 = gpiochip_get_data(chip);
 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 = gpiochip_get_data(chip);
 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 = 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 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 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 & BIT(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->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 adp5589_gpio_add(struct adp5589_kpad *kpad)
 500 {
 501         struct device *dev = &kpad->client->dev;
 502         const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
 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.parent = dev;
 510         kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
 511         if (kpad->gc.ngpio == 0) {
 512                 dev_info(dev, "No unused gpios left to export\n");
 513                 return 0;
 514         }
 515
 516         kpad->gc.direction_input = adp5589_gpio_direction_input;
 517         kpad->gc.direction_output = adp5589_gpio_direction_output;
 518         kpad->gc.get = adp5589_gpio_get_value;
 519         kpad->gc.set = adp5589_gpio_set_value;
 520         kpad->gc.can_sleep = 1;
 521
 522         kpad->gc.base = gpio_data->gpio_start;
 523         kpad->gc.label = kpad->client->name;
 524         kpad->gc.owner = THIS_MODULE;
 525
 526         mutex_init(&kpad->gpio_lock);
 527
 528         error = devm_gpiochip_add_data(dev, &kpad->gc, kpad);
 529         if (error)
 530                 return error;
 531
 532         for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
 533                 kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
 534                                                 ADP5589_GPO_DATA_OUT_A) + i);
 535                 kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
 536                                             ADP5589_GPIO_DIRECTION_A) + i);
 537         }
 538
 539         return 0;
 540 }
 541 #else
 542 static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
 543 {
 544         return 0;
 545 }
 546 #endif
 547
 548 static void adp5589_report_switches(struct adp5589_kpad *kpad,
 549                                     int key, int key_val)
 550 {
 551         int i;
 552
 553         for (i = 0; i < kpad->gpimapsize; i++) {
 554                 if (key_val == kpad->gpimap[i].pin) {
 555                         input_report_switch(kpad->input,
 556                                             kpad->gpimap[i].sw_evt,
 557                                             key & KEY_EV_PRESSED);
 558                         break;
 559                 }
 560         }
 561 }
 562
 563 static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
 564 {
 565         int i;
 566
 567         for (i = 0; i < ev_cnt; i++) {
 568                 int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
 569                 int key_val = key & KEY_EV_MASK;
 570
 571                 if (key_val >= kpad->var->gpi_pin_base &&
 572                     key_val <= kpad->var->gpi_pin_end) {
 573                         adp5589_report_switches(kpad, key, key_val);
 574                 } else {
 575                         input_report_key(kpad->input,
 576                                          kpad->keycode[key_val - 1],
 577                                          key & KEY_EV_PRESSED);
 578                 }
 579         }
 580 }
 581
 582 static irqreturn_t adp5589_irq(int irq, void *handle)
 583 {
 584         struct adp5589_kpad *kpad = handle;
 585         struct i2c_client *client = kpad->client;
 586         int status, ev_cnt;
 587
 588         status = adp5589_read(client, ADP5589_5_INT_STATUS);
 589
 590         if (status & OVRFLOW_INT)       /* Unlikely and should never happen */
 591                 dev_err(&client->dev, "Event Overflow Error\n");
 592
 593         if (status & EVENT_INT) {
 594                 ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
 595                 if (ev_cnt) {
 596                         adp5589_report_events(kpad, ev_cnt);
 597                         input_sync(kpad->input);
 598                 }
 599         }
 600
 601         adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
 602
 603         return IRQ_HANDLED;
 604 }
 605
 606 static int adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
 607 {
 608         int i;
 609
 610         for (i = 0; i < kpad->var->keymapsize; i++)
 611                 if (key == kpad->keycode[i])
 612                         return (i + 1) | KEY_EV_PRESSED;
 613
 614         dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
 615
 616         return -EINVAL;
 617 }
 618
 619 static int adp5589_setup(struct adp5589_kpad *kpad)
 620 {
 621         struct i2c_client *client = kpad->client;
 622         const struct adp5589_kpad_platform_data *pdata =
 623                 dev_get_platdata(&client->dev);
 624         u8 (*reg) (u8) = kpad->var->reg;
 625         unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
 626         unsigned char pull_mask = 0;
 627         int i, ret;
 628
 629         ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
 630                             pdata->keypad_en_mask & kpad->var->row_mask);
 631         ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
 632                              (pdata->keypad_en_mask >> kpad->var->col_shift) &
 633                              kpad->var->col_mask);
 634
 635         if (!kpad->is_adp5585)
 636                 ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
 637                                      (pdata->keypad_en_mask >> 16) & 0xFF);
 638
 639         if (!kpad->is_adp5585 && pdata->en_keylock) {
 640                 ret |= adp5589_write(client, ADP5589_UNLOCK1,
 641                                      pdata->unlock_key1);
 642                 ret |= adp5589_write(client, ADP5589_UNLOCK2,
 643                                      pdata->unlock_key2);
 644                 ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
 645                                      pdata->unlock_timer & LTIME_MASK);
 646                 ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
 647         }
 648
 649         for (i = 0; i < KEYP_MAX_EVENT; i++)
 650                 ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
 651
 652         for (i = 0; i < pdata->gpimapsize; i++) {
 653                 unsigned short pin = pdata->gpimap[i].pin;
 654
 655                 if (pin <= kpad->var->gpi_pin_row_end) {
 656                         evt_mode1 |= BIT(pin - kpad->var->gpi_pin_row_base);
 657                 } else {
 658                         evt_mode2 |=
 659                             BIT(pin - kpad->var->gpi_pin_col_base) & 0xFF;
 660                         if (!kpad->is_adp5585)
 661                                 evt_mode3 |=
 662                                     BIT(pin - kpad->var->gpi_pin_col_base) >> 8;
 663                 }
 664         }
 665
 666         if (pdata->gpimapsize) {
 667                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
 668                                      evt_mode1);
 669                 ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
 670                                      evt_mode2);
 671                 if (!kpad->is_adp5585)
 672                         ret |= adp5589_write(client,
 673                                              reg(ADP5589_GPI_EVENT_EN_C),
 674                                              evt_mode3);
 675         }
 676
 677         if (pdata->pull_dis_mask & pdata->pullup_en_100k &
 678                 pdata->pullup_en_300k & pdata->pulldown_en_300k)
 679                 dev_warn(&client->dev, "Conflicting pull resistor config\n");
 680
 681         for (i = 0; i <= kpad->var->max_row_num; i++) {
 682                 unsigned int val = 0, bit = BIT(i);
 683                 if (pdata->pullup_en_300k & bit)
 684                         val = 0;
 685                 else if (pdata->pulldown_en_300k & bit)
 686                         val = 1;
 687                 else if (pdata->pullup_en_100k & bit)
 688                         val = 2;
 689                 else if (pdata->pull_dis_mask & bit)
 690                         val = 3;
 691
 692                 pull_mask |= val << (2 * (i & 0x3));
 693
 694                 if (i % 4 == 3 || i == kpad->var->max_row_num) {
 695                         ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
 696                                              + (i >> 2), pull_mask);
 697                         pull_mask = 0;
 698                 }
 699         }
 700
 701         for (i = 0; i <= kpad->var->max_col_num; i++) {
 702                 unsigned int val = 0, bit = BIT(i + kpad->var->col_shift);
 703                 if (pdata->pullup_en_300k & bit)
 704                         val = 0;
 705                 else if (pdata->pulldown_en_300k & bit)
 706                         val = 1;
 707                 else if (pdata->pullup_en_100k & bit)
 708                         val = 2;
 709                 else if (pdata->pull_dis_mask & bit)
 710                         val = 3;
 711
 712                 pull_mask |= val << (2 * (i & 0x3));
 713
 714                 if (i % 4 == 3 || i == kpad->var->max_col_num) {
 715                         ret |= adp5589_write(client,
 716                                              reg(ADP5585_RPULL_CONFIG_C) +
 717                                              (i >> 2), pull_mask);
 718                         pull_mask = 0;
 719                 }
 720         }
 721
 722         if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
 723                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
 724                                      adp5589_get_evcode(kpad,
 725                                                         pdata->reset1_key_1));
 726                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
 727                                      adp5589_get_evcode(kpad,
 728                                                         pdata->reset1_key_2));
 729                 ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
 730                                      adp5589_get_evcode(kpad,
 731                                                         pdata->reset1_key_3));
 732                 kpad->extend_cfg |= R4_EXTEND_CFG;
 733         }
 734
 735         if (pdata->reset2_key_1 && pdata->reset2_key_2) {
 736                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
 737                                      adp5589_get_evcode(kpad,
 738                                                         pdata->reset2_key_1));
 739                 ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
 740                                      adp5589_get_evcode(kpad,
 741                                                         pdata->reset2_key_2));
 742                 kpad->extend_cfg |= C4_EXTEND_CFG;
 743         }
 744
 745         if (kpad->extend_cfg) {
 746                 ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
 747                                      pdata->reset_cfg);
 748                 ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
 749                                      kpad->extend_cfg);
 750         }
 751
 752         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
 753                             pdata->debounce_dis_mask & kpad->var->row_mask);
 754
 755         ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
 756                              (pdata->debounce_dis_mask >> kpad->var->col_shift)
 757                              & kpad->var->col_mask);
 758
 759         if (!kpad->is_adp5585)
 760                 ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
 761                                      (pdata->debounce_dis_mask >> 16) & 0xFF);
 762
 763         ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
 764                              pdata->scan_cycle_time & PTIME_MASK);
 765         ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
 766                              (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
 767                              LOGIC1_INT | OVRFLOW_INT |
 768                              (kpad->is_adp5585 ? 0 : LOCK_INT) |
 769                              GPI_INT | EVENT_INT);      /* Status is W1C */
 770
 771         ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
 772                              INT_CFG | OSC_EN | CORE_CLK(3));
 773         ret |= adp5589_write(client, reg(ADP5589_INT_EN),
 774                              OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
 775
 776         if (ret < 0) {
 777                 dev_err(&client->dev, "Write Error\n");
 778                 return ret;
 779         }
 780
 781         return 0;
 782 }
 783
 784 static void adp5589_report_switch_state(struct adp5589_kpad *kpad)
 785 {
 786         int gpi_stat_tmp, pin_loc;
 787         int i;
 788         int gpi_stat1 = adp5589_read(kpad->client,
 789                                      kpad->var->reg(ADP5589_GPI_STATUS_A));
 790         int gpi_stat2 = adp5589_read(kpad->client,
 791                                      kpad->var->reg(ADP5589_GPI_STATUS_B));
 792         int gpi_stat3 = !kpad->is_adp5585 ?
 793                         adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
 794
 795         for (i = 0; i < kpad->gpimapsize; i++) {
 796                 unsigned short pin = kpad->gpimap[i].pin;
 797
 798                 if (pin <= kpad->var->gpi_pin_row_end) {
 799                         gpi_stat_tmp = gpi_stat1;
 800                         pin_loc = pin - kpad->var->gpi_pin_row_base;
 801                 } else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
 802                         gpi_stat_tmp = gpi_stat2;
 803                         pin_loc = pin - kpad->var->gpi_pin_col_base;
 804                 } else {
 805                         gpi_stat_tmp = gpi_stat3;
 806                         pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
 807                 }
 808
 809                 if (gpi_stat_tmp < 0) {
 810                         dev_err(&kpad->client->dev,
 811                                 "Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
 812                                 pin);
 813                         gpi_stat_tmp = 0;
 814                 }
 815
 816                 input_report_switch(kpad->input,
 817                                     kpad->gpimap[i].sw_evt,
 818                                     !(gpi_stat_tmp & BIT(pin_loc)));
 819         }
 820
 821         input_sync(kpad->input);
 822 }
 823
 824 static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
 825 {
 826         struct i2c_client *client = kpad->client;
 827         const struct adp5589_kpad_platform_data *pdata =
 828                 dev_get_platdata(&client->dev);
 829         struct input_dev *input;
 830         unsigned int i;
 831         int error;
 832
 833         if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
 834                         (pdata->keypad_en_mask >> kpad->var->col_shift)) ||
 835                         !pdata->keymap) {
 836                 dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
 837                 return -EINVAL;
 838         }
 839
 840         if (pdata->keymapsize != kpad->var->keymapsize) {
 841                 dev_err(&client->dev, "invalid keymapsize\n");
 842                 return -EINVAL;
 843         }
 844
 845         if (!pdata->gpimap && pdata->gpimapsize) {
 846                 dev_err(&client->dev, "invalid gpimap from pdata\n");
 847                 return -EINVAL;
 848         }
 849
 850         if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
 851                 dev_err(&client->dev, "invalid gpimapsize\n");
 852                 return -EINVAL;
 853         }
 854
 855         for (i = 0; i < pdata->gpimapsize; i++) {
 856                 unsigned short pin = pdata->gpimap[i].pin;
 857
 858                 if (pin < kpad->var->gpi_pin_base ||
 859                                 pin > kpad->var->gpi_pin_end) {
 860                         dev_err(&client->dev, "invalid gpi pin data\n");
 861                         return -EINVAL;
 862                 }
 863
 864                 if (BIT(pin - kpad->var->gpi_pin_row_base) &
 865                                 pdata->keypad_en_mask) {
 866                         dev_err(&client->dev, "invalid gpi row/col data\n");
 867                         return -EINVAL;
 868                 }
 869         }
 870
 871         if (!client->irq) {
 872                 dev_err(&client->dev, "no IRQ?\n");
 873                 return -EINVAL;
 874         }
 875
 876         input = devm_input_allocate_device(&client->dev);
 877         if (!input)
 878                 return -ENOMEM;
 879
 880         kpad->input = input;
 881
 882         input->name = client->name;
 883         input->phys = "adp5589-keys/input0";
 884         input->dev.parent = &client->dev;
 885
 886         input_set_drvdata(input, kpad);
 887
 888         input->id.bustype = BUS_I2C;
 889         input->id.vendor = 0x0001;
 890         input->id.product = 0x0001;
 891         input->id.version = revid;
 892
 893         input->keycodesize = sizeof(kpad->keycode[0]);
 894         input->keycodemax = pdata->keymapsize;
 895         input->keycode = kpad->keycode;
 896
 897         memcpy(kpad->keycode, pdata->keymap,
 898                pdata->keymapsize * input->keycodesize);
 899
 900         kpad->gpimap = pdata->gpimap;
 901         kpad->gpimapsize = pdata->gpimapsize;
 902
 903         /* setup input device */
 904         __set_bit(EV_KEY, input->evbit);
 905
 906         if (pdata->repeat)
 907                 __set_bit(EV_REP, input->evbit);
 908
 909         for (i = 0; i < input->keycodemax; i++)
 910                 if (kpad->keycode[i] <= KEY_MAX)
 911                         __set_bit(kpad->keycode[i], input->keybit);
 912         __clear_bit(KEY_RESERVED, input->keybit);
 913
 914         if (kpad->gpimapsize)
 915                 __set_bit(EV_SW, input->evbit);
 916         for (i = 0; i < kpad->gpimapsize; i++)
 917                 __set_bit(kpad->gpimap[i].sw_evt, input->swbit);
 918
 919         error = input_register_device(input);
 920         if (error) {
 921                 dev_err(&client->dev, "unable to register input device\n");
 922                 return error;
 923         }
 924
 925         error = devm_request_threaded_irq(&client->dev, client->irq,
 926                                           NULL, adp5589_irq,
 927                                           IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 928                                           client->dev.driver->name, kpad);
 929         if (error) {
 930                 dev_err(&client->dev, "unable to request irq %d\n", client->irq);
 931                 return error;
 932         }
 933
 934         return 0;
 935 }
 936
 937 static void adp5589_clear_config(void *data)
 938 {
 939         struct i2c_client *client = data;
 940         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
 941
 942         adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
 943 }
 944
 945 static int adp5589_probe(struct i2c_client *client,
 946                          const struct i2c_device_id *id)
 947 {
 948         struct adp5589_kpad *kpad;
 949         const struct adp5589_kpad_platform_data *pdata =
 950                 dev_get_platdata(&client->dev);
 951         unsigned int revid;
 952         int error, ret;
 953
 954         if (!i2c_check_functionality(client->adapter,
 955                                      I2C_FUNC_SMBUS_BYTE_DATA)) {
 956                 dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
 957                 return -EIO;
 958         }
 959
 960         if (!pdata) {
 961                 dev_err(&client->dev, "no platform data?\n");
 962                 return -EINVAL;
 963         }
 964
 965         kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL);
 966         if (!kpad)
 967                 return -ENOMEM;
 968
 969         kpad->client = client;
 970
 971         switch (id->driver_data) {
 972         case ADP5585_02:
 973                 kpad->support_row5 = true;
 974                 fallthrough;
 975         case ADP5585_01:
 976                 kpad->is_adp5585 = true;
 977                 kpad->var = &const_adp5585;
 978                 break;
 979         case ADP5589:
 980                 kpad->support_row5 = true;
 981                 kpad->var = &const_adp5589;
 982                 break;
 983         }
 984
 985         error = devm_add_action_or_reset(&client->dev, adp5589_clear_config,
 986                                          client);
 987         if (error)
 988                 return error;
 989
 990         ret = adp5589_read(client, ADP5589_5_ID);
 991         if (ret < 0)
 992                 return ret;
 993
 994         revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
 995
 996         if (pdata->keymapsize) {
 997                 error = adp5589_keypad_add(kpad, revid);
 998                 if (error)
 999                         return error;
1000         }
1001
1002         error = adp5589_setup(kpad);
1003         if (error)
1004                 return error;
1005
1006         if (kpad->gpimapsize)
1007                 adp5589_report_switch_state(kpad);
1008
1009         error = adp5589_gpio_add(kpad);
1010         if (error)
1011                 return error;
1012
1013         i2c_set_clientdata(client, kpad);
1014
1015         dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
1016         return 0;
1017 }
1018
1019 static int __maybe_unused adp5589_suspend(struct device *dev)
1020 {
1021         struct i2c_client *client = to_i2c_client(dev);
1022         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
1023
1024         if (kpad->input)
1025                 disable_irq(client->irq);
1026
1027         return 0;
1028 }
1029
1030 static int __maybe_unused adp5589_resume(struct device *dev)
1031 {
1032         struct i2c_client *client = to_i2c_client(dev);
1033         struct adp5589_kpad *kpad = i2c_get_clientdata(client);
1034
1035         if (kpad->input)
1036                 enable_irq(client->irq);
1037
1038         return 0;
1039 }
1040
1041 static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
1042
1043 static const struct i2c_device_id adp5589_id[] = {
1044         {"adp5589-keys", ADP5589},
1045         {"adp5585-keys", ADP5585_01},
1046         {"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
1047         {}
1048 };
1049
1050 MODULE_DEVICE_TABLE(i2c, adp5589_id);
1051
1052 static struct i2c_driver adp5589_driver = {
1053         .driver = {
1054                 .name = KBUILD_MODNAME,
1055                 .pm = &adp5589_dev_pm_ops,
1056         },
1057         .probe = adp5589_probe,
1058         .id_table = adp5589_id,
1059 };
1060
1061 module_i2c_driver(adp5589_driver);
1062
1063 MODULE_LICENSE("GPL");
1064 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
1065 MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");