Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
[pandora-kernel.git] / 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");