]>
Commit | Line | Data |
---|---|---|
07b8481d JS |
1 | /* |
2 | * Copyright (C) 2012 Samsung Electronics Co.Ltd | |
3 | * Author: Joonyoung Shim <jy0922.shim@samsung.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #include <linux/module.h> | |
07b8481d | 11 | #include <linux/delay.h> |
ad5396ee | 12 | #include <linux/of.h> |
07b8481d JS |
13 | #include <linux/i2c.h> |
14 | #include <linux/i2c/mms114.h> | |
15 | #include <linux/input/mt.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/regulator/consumer.h> | |
18 | #include <linux/slab.h> | |
19 | ||
20 | /* Write only registers */ | |
21 | #define MMS114_MODE_CONTROL 0x01 | |
22 | #define MMS114_OPERATION_MODE_MASK 0xE | |
23 | #define MMS114_ACTIVE (1 << 1) | |
24 | ||
25 | #define MMS114_XY_RESOLUTION_H 0x02 | |
26 | #define MMS114_X_RESOLUTION 0x03 | |
27 | #define MMS114_Y_RESOLUTION 0x04 | |
28 | #define MMS114_CONTACT_THRESHOLD 0x05 | |
29 | #define MMS114_MOVING_THRESHOLD 0x06 | |
30 | ||
31 | /* Read only registers */ | |
32 | #define MMS114_PACKET_SIZE 0x0F | |
33 | #define MMS114_INFOMATION 0x10 | |
34 | #define MMS114_TSP_REV 0xF0 | |
35 | ||
36 | /* Minimum delay time is 50us between stop and start signal of i2c */ | |
37 | #define MMS114_I2C_DELAY 50 | |
38 | ||
39 | /* 200ms needs after power on */ | |
40 | #define MMS114_POWERON_DELAY 200 | |
41 | ||
42 | /* Touchscreen absolute values */ | |
43 | #define MMS114_MAX_AREA 0xff | |
44 | ||
45 | #define MMS114_MAX_TOUCH 10 | |
46 | #define MMS114_PACKET_NUM 8 | |
47 | ||
48 | /* Touch type */ | |
49 | #define MMS114_TYPE_NONE 0 | |
50 | #define MMS114_TYPE_TOUCHSCREEN 1 | |
51 | #define MMS114_TYPE_TOUCHKEY 2 | |
52 | ||
53 | struct mms114_data { | |
54 | struct i2c_client *client; | |
55 | struct input_dev *input_dev; | |
56 | struct regulator *core_reg; | |
57 | struct regulator *io_reg; | |
58 | const struct mms114_platform_data *pdata; | |
59 | ||
60 | /* Use cache data for mode control register(write only) */ | |
61 | u8 cache_mode_control; | |
62 | }; | |
63 | ||
64 | struct mms114_touch { | |
65 | u8 id:4, reserved_bit4:1, type:2, pressed:1; | |
66 | u8 x_hi:4, y_hi:4; | |
67 | u8 x_lo; | |
68 | u8 y_lo; | |
69 | u8 width; | |
70 | u8 strength; | |
71 | u8 reserved[2]; | |
72 | } __packed; | |
73 | ||
74 | static int __mms114_read_reg(struct mms114_data *data, unsigned int reg, | |
75 | unsigned int len, u8 *val) | |
76 | { | |
77 | struct i2c_client *client = data->client; | |
78 | struct i2c_msg xfer[2]; | |
79 | u8 buf = reg & 0xff; | |
80 | int error; | |
81 | ||
82 | if (reg <= MMS114_MODE_CONTROL && reg + len > MMS114_MODE_CONTROL) | |
83 | BUG(); | |
84 | ||
85 | /* Write register: use repeated start */ | |
86 | xfer[0].addr = client->addr; | |
87 | xfer[0].flags = I2C_M_TEN | I2C_M_NOSTART; | |
88 | xfer[0].len = 1; | |
89 | xfer[0].buf = &buf; | |
90 | ||
91 | /* Read data */ | |
92 | xfer[1].addr = client->addr; | |
93 | xfer[1].flags = I2C_M_RD; | |
94 | xfer[1].len = len; | |
95 | xfer[1].buf = val; | |
96 | ||
97 | error = i2c_transfer(client->adapter, xfer, 2); | |
98 | if (error != 2) { | |
99 | dev_err(&client->dev, | |
100 | "%s: i2c transfer failed (%d)\n", __func__, error); | |
101 | return error < 0 ? error : -EIO; | |
102 | } | |
103 | udelay(MMS114_I2C_DELAY); | |
104 | ||
105 | return 0; | |
106 | } | |
107 | ||
108 | static int mms114_read_reg(struct mms114_data *data, unsigned int reg) | |
109 | { | |
110 | u8 val; | |
111 | int error; | |
112 | ||
113 | if (reg == MMS114_MODE_CONTROL) | |
114 | return data->cache_mode_control; | |
115 | ||
116 | error = __mms114_read_reg(data, reg, 1, &val); | |
117 | return error < 0 ? error : val; | |
118 | } | |
119 | ||
120 | static int mms114_write_reg(struct mms114_data *data, unsigned int reg, | |
121 | unsigned int val) | |
122 | { | |
123 | struct i2c_client *client = data->client; | |
124 | u8 buf[2]; | |
125 | int error; | |
126 | ||
127 | buf[0] = reg & 0xff; | |
128 | buf[1] = val & 0xff; | |
129 | ||
130 | error = i2c_master_send(client, buf, 2); | |
131 | if (error != 2) { | |
132 | dev_err(&client->dev, | |
133 | "%s: i2c send failed (%d)\n", __func__, error); | |
134 | return error < 0 ? error : -EIO; | |
135 | } | |
136 | udelay(MMS114_I2C_DELAY); | |
137 | ||
138 | if (reg == MMS114_MODE_CONTROL) | |
139 | data->cache_mode_control = val; | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *touch) | |
145 | { | |
146 | const struct mms114_platform_data *pdata = data->pdata; | |
147 | struct i2c_client *client = data->client; | |
148 | struct input_dev *input_dev = data->input_dev; | |
149 | unsigned int id; | |
150 | unsigned int x; | |
151 | unsigned int y; | |
152 | ||
153 | if (touch->id > MMS114_MAX_TOUCH) { | |
154 | dev_err(&client->dev, "Wrong touch id (%d)\n", touch->id); | |
155 | return; | |
156 | } | |
157 | ||
158 | if (touch->type != MMS114_TYPE_TOUCHSCREEN) { | |
159 | dev_err(&client->dev, "Wrong touch type (%d)\n", touch->type); | |
160 | return; | |
161 | } | |
162 | ||
163 | id = touch->id - 1; | |
164 | x = touch->x_lo | touch->x_hi << 8; | |
165 | y = touch->y_lo | touch->y_hi << 8; | |
166 | if (x > pdata->x_size || y > pdata->y_size) { | |
167 | dev_dbg(&client->dev, | |
168 | "Wrong touch coordinates (%d, %d)\n", x, y); | |
169 | return; | |
170 | } | |
171 | ||
172 | if (pdata->x_invert) | |
173 | x = pdata->x_size - x; | |
174 | if (pdata->y_invert) | |
175 | y = pdata->y_size - y; | |
176 | ||
177 | dev_dbg(&client->dev, | |
178 | "id: %d, type: %d, pressed: %d, x: %d, y: %d, width: %d, strength: %d\n", | |
179 | id, touch->type, touch->pressed, | |
180 | x, y, touch->width, touch->strength); | |
181 | ||
182 | input_mt_slot(input_dev, id); | |
183 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, touch->pressed); | |
184 | ||
185 | if (touch->pressed) { | |
186 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, touch->width); | |
187 | input_report_abs(input_dev, ABS_MT_POSITION_X, x); | |
188 | input_report_abs(input_dev, ABS_MT_POSITION_Y, y); | |
189 | input_report_abs(input_dev, ABS_MT_PRESSURE, touch->strength); | |
190 | } | |
191 | } | |
192 | ||
193 | static irqreturn_t mms114_interrupt(int irq, void *dev_id) | |
194 | { | |
195 | struct mms114_data *data = dev_id; | |
196 | struct input_dev *input_dev = data->input_dev; | |
197 | struct mms114_touch touch[MMS114_MAX_TOUCH]; | |
198 | int packet_size; | |
199 | int touch_size; | |
200 | int index; | |
201 | int error; | |
202 | ||
203 | mutex_lock(&input_dev->mutex); | |
204 | if (!input_dev->users) { | |
205 | mutex_unlock(&input_dev->mutex); | |
206 | goto out; | |
207 | } | |
208 | mutex_unlock(&input_dev->mutex); | |
209 | ||
210 | packet_size = mms114_read_reg(data, MMS114_PACKET_SIZE); | |
211 | if (packet_size <= 0) | |
212 | goto out; | |
213 | ||
214 | touch_size = packet_size / MMS114_PACKET_NUM; | |
215 | ||
216 | error = __mms114_read_reg(data, MMS114_INFOMATION, packet_size, | |
217 | (u8 *)touch); | |
218 | if (error < 0) | |
219 | goto out; | |
220 | ||
221 | for (index = 0; index < touch_size; index++) | |
222 | mms114_process_mt(data, touch + index); | |
223 | ||
224 | input_mt_report_pointer_emulation(data->input_dev, true); | |
225 | input_sync(data->input_dev); | |
226 | ||
227 | out: | |
228 | return IRQ_HANDLED; | |
229 | } | |
230 | ||
231 | static int mms114_set_active(struct mms114_data *data, bool active) | |
232 | { | |
233 | int val; | |
234 | ||
235 | val = mms114_read_reg(data, MMS114_MODE_CONTROL); | |
236 | if (val < 0) | |
237 | return val; | |
238 | ||
239 | val &= ~MMS114_OPERATION_MODE_MASK; | |
240 | ||
241 | /* If active is false, sleep mode */ | |
242 | if (active) | |
243 | val |= MMS114_ACTIVE; | |
244 | ||
245 | return mms114_write_reg(data, MMS114_MODE_CONTROL, val); | |
246 | } | |
247 | ||
248 | static int mms114_get_version(struct mms114_data *data) | |
249 | { | |
250 | struct device *dev = &data->client->dev; | |
251 | u8 buf[6]; | |
252 | int error; | |
253 | ||
254 | error = __mms114_read_reg(data, MMS114_TSP_REV, 6, buf); | |
255 | if (error < 0) | |
256 | return error; | |
257 | ||
258 | dev_info(dev, "TSP Rev: 0x%x, HW Rev: 0x%x, Firmware Ver: 0x%x\n", | |
259 | buf[0], buf[1], buf[3]); | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static int mms114_setup_regs(struct mms114_data *data) | |
265 | { | |
266 | const struct mms114_platform_data *pdata = data->pdata; | |
267 | int val; | |
268 | int error; | |
269 | ||
270 | error = mms114_get_version(data); | |
271 | if (error < 0) | |
272 | return error; | |
273 | ||
274 | error = mms114_set_active(data, true); | |
275 | if (error < 0) | |
276 | return error; | |
277 | ||
278 | val = (pdata->x_size >> 8) & 0xf; | |
279 | val |= ((pdata->y_size >> 8) & 0xf) << 4; | |
280 | error = mms114_write_reg(data, MMS114_XY_RESOLUTION_H, val); | |
281 | if (error < 0) | |
282 | return error; | |
283 | ||
284 | val = pdata->x_size & 0xff; | |
285 | error = mms114_write_reg(data, MMS114_X_RESOLUTION, val); | |
286 | if (error < 0) | |
287 | return error; | |
288 | ||
289 | val = pdata->y_size & 0xff; | |
290 | error = mms114_write_reg(data, MMS114_Y_RESOLUTION, val); | |
291 | if (error < 0) | |
292 | return error; | |
293 | ||
294 | if (pdata->contact_threshold) { | |
295 | error = mms114_write_reg(data, MMS114_CONTACT_THRESHOLD, | |
296 | pdata->contact_threshold); | |
297 | if (error < 0) | |
298 | return error; | |
299 | } | |
300 | ||
301 | if (pdata->moving_threshold) { | |
302 | error = mms114_write_reg(data, MMS114_MOVING_THRESHOLD, | |
303 | pdata->moving_threshold); | |
304 | if (error < 0) | |
305 | return error; | |
306 | } | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | static int mms114_start(struct mms114_data *data) | |
312 | { | |
313 | struct i2c_client *client = data->client; | |
314 | int error; | |
315 | ||
4b7d293c MB |
316 | error = regulator_enable(data->core_reg); |
317 | if (error) { | |
318 | dev_err(&client->dev, "Failed to enable avdd: %d\n", error); | |
319 | return error; | |
320 | } | |
321 | ||
322 | error = regulator_enable(data->io_reg); | |
323 | if (error) { | |
324 | dev_err(&client->dev, "Failed to enable vdd: %d\n", error); | |
325 | regulator_disable(data->core_reg); | |
326 | return error; | |
327 | } | |
328 | ||
07b8481d JS |
329 | mdelay(MMS114_POWERON_DELAY); |
330 | ||
331 | error = mms114_setup_regs(data); | |
4b7d293c MB |
332 | if (error < 0) { |
333 | regulator_disable(data->io_reg); | |
334 | regulator_disable(data->core_reg); | |
07b8481d | 335 | return error; |
4b7d293c | 336 | } |
07b8481d JS |
337 | |
338 | if (data->pdata->cfg_pin) | |
339 | data->pdata->cfg_pin(true); | |
340 | ||
341 | enable_irq(client->irq); | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static void mms114_stop(struct mms114_data *data) | |
347 | { | |
348 | struct i2c_client *client = data->client; | |
4b7d293c | 349 | int error; |
07b8481d JS |
350 | |
351 | disable_irq(client->irq); | |
352 | ||
353 | if (data->pdata->cfg_pin) | |
354 | data->pdata->cfg_pin(false); | |
355 | ||
4b7d293c MB |
356 | error = regulator_disable(data->io_reg); |
357 | if (error) | |
358 | dev_warn(&client->dev, "Failed to disable vdd: %d\n", error); | |
359 | ||
360 | error = regulator_disable(data->core_reg); | |
361 | if (error) | |
362 | dev_warn(&client->dev, "Failed to disable avdd: %d\n", error); | |
07b8481d JS |
363 | } |
364 | ||
365 | static int mms114_input_open(struct input_dev *dev) | |
366 | { | |
367 | struct mms114_data *data = input_get_drvdata(dev); | |
368 | ||
369 | return mms114_start(data); | |
370 | } | |
371 | ||
372 | static void mms114_input_close(struct input_dev *dev) | |
373 | { | |
374 | struct mms114_data *data = input_get_drvdata(dev); | |
375 | ||
376 | mms114_stop(data); | |
377 | } | |
378 | ||
ad5396ee | 379 | #ifdef CONFIG_OF |
5298cc4c | 380 | static struct mms114_platform_data *mms114_parse_dt(struct device *dev) |
ad5396ee TF |
381 | { |
382 | struct mms114_platform_data *pdata; | |
383 | struct device_node *np = dev->of_node; | |
384 | ||
385 | if (!np) | |
386 | return NULL; | |
387 | ||
388 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
389 | if (!pdata) { | |
390 | dev_err(dev, "failed to allocate platform data\n"); | |
391 | return NULL; | |
392 | } | |
393 | ||
394 | if (of_property_read_u32(np, "x-size", &pdata->x_size)) { | |
395 | dev_err(dev, "failed to get x-size property\n"); | |
396 | return NULL; | |
86a39bff | 397 | } |
ad5396ee TF |
398 | |
399 | if (of_property_read_u32(np, "y-size", &pdata->y_size)) { | |
400 | dev_err(dev, "failed to get y-size property\n"); | |
401 | return NULL; | |
86a39bff | 402 | } |
ad5396ee TF |
403 | |
404 | of_property_read_u32(np, "contact-threshold", | |
405 | &pdata->contact_threshold); | |
406 | of_property_read_u32(np, "moving-threshold", | |
407 | &pdata->moving_threshold); | |
408 | ||
409 | if (of_find_property(np, "x-invert", NULL)) | |
410 | pdata->x_invert = true; | |
411 | if (of_find_property(np, "y-invert", NULL)) | |
412 | pdata->y_invert = true; | |
413 | ||
414 | return pdata; | |
415 | } | |
416 | #else | |
417 | static inline struct mms114_platform_data *mms114_parse_dt(struct device *dev) | |
418 | { | |
419 | return NULL; | |
420 | } | |
421 | #endif | |
422 | ||
5298cc4c | 423 | static int mms114_probe(struct i2c_client *client, |
07b8481d JS |
424 | const struct i2c_device_id *id) |
425 | { | |
ad5396ee | 426 | const struct mms114_platform_data *pdata; |
07b8481d JS |
427 | struct mms114_data *data; |
428 | struct input_dev *input_dev; | |
429 | int error; | |
430 | ||
ad5396ee TF |
431 | pdata = dev_get_platdata(&client->dev); |
432 | if (!pdata) | |
433 | pdata = mms114_parse_dt(&client->dev); | |
434 | ||
435 | if (!pdata) { | |
07b8481d JS |
436 | dev_err(&client->dev, "Need platform data\n"); |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | if (!i2c_check_functionality(client->adapter, | |
441 | I2C_FUNC_PROTOCOL_MANGLING)) { | |
442 | dev_err(&client->dev, | |
443 | "Need i2c bus that supports protocol mangling\n"); | |
444 | return -ENODEV; | |
445 | } | |
446 | ||
8a0b6c5d SK |
447 | data = devm_kzalloc(&client->dev, sizeof(struct mms114_data), |
448 | GFP_KERNEL); | |
449 | input_dev = devm_input_allocate_device(&client->dev); | |
07b8481d JS |
450 | if (!data || !input_dev) { |
451 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
8a0b6c5d | 452 | return -ENOMEM; |
07b8481d JS |
453 | } |
454 | ||
455 | data->client = client; | |
456 | data->input_dev = input_dev; | |
ad5396ee | 457 | data->pdata = pdata; |
07b8481d | 458 | |
58442239 | 459 | input_dev->name = "MELFAS MMS114 Touchscreen"; |
07b8481d JS |
460 | input_dev->id.bustype = BUS_I2C; |
461 | input_dev->dev.parent = &client->dev; | |
462 | input_dev->open = mms114_input_open; | |
463 | input_dev->close = mms114_input_close; | |
464 | ||
465 | __set_bit(EV_ABS, input_dev->evbit); | |
466 | __set_bit(EV_KEY, input_dev->evbit); | |
467 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
468 | input_set_abs_params(input_dev, ABS_X, 0, data->pdata->x_size, 0, 0); | |
469 | input_set_abs_params(input_dev, ABS_Y, 0, data->pdata->y_size, 0, 0); | |
470 | ||
471 | /* For multi touch */ | |
b4adbbef | 472 | input_mt_init_slots(input_dev, MMS114_MAX_TOUCH, 0); |
07b8481d JS |
473 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
474 | 0, MMS114_MAX_AREA, 0, 0); | |
475 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, | |
476 | 0, data->pdata->x_size, 0, 0); | |
477 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, | |
478 | 0, data->pdata->y_size, 0, 0); | |
479 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
480 | ||
481 | input_set_drvdata(input_dev, data); | |
482 | i2c_set_clientdata(client, data); | |
483 | ||
8a0b6c5d | 484 | data->core_reg = devm_regulator_get(&client->dev, "avdd"); |
07b8481d JS |
485 | if (IS_ERR(data->core_reg)) { |
486 | error = PTR_ERR(data->core_reg); | |
487 | dev_err(&client->dev, | |
488 | "Unable to get the Core regulator (%d)\n", error); | |
8a0b6c5d | 489 | return error; |
07b8481d JS |
490 | } |
491 | ||
8a0b6c5d | 492 | data->io_reg = devm_regulator_get(&client->dev, "vdd"); |
07b8481d JS |
493 | if (IS_ERR(data->io_reg)) { |
494 | error = PTR_ERR(data->io_reg); | |
495 | dev_err(&client->dev, | |
496 | "Unable to get the IO regulator (%d)\n", error); | |
8a0b6c5d | 497 | return error; |
07b8481d JS |
498 | } |
499 | ||
8a0b6c5d SK |
500 | error = devm_request_threaded_irq(&client->dev, client->irq, NULL, |
501 | mms114_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, | |
502 | dev_name(&client->dev), data); | |
07b8481d JS |
503 | if (error) { |
504 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
8a0b6c5d | 505 | return error; |
07b8481d JS |
506 | } |
507 | disable_irq(client->irq); | |
508 | ||
509 | error = input_register_device(data->input_dev); | |
8a0b6c5d SK |
510 | if (error) { |
511 | dev_err(&client->dev, "Failed to register input device\n"); | |
512 | return error; | |
513 | } | |
07b8481d JS |
514 | |
515 | return 0; | |
516 | } | |
517 | ||
02b6a58b | 518 | static int __maybe_unused mms114_suspend(struct device *dev) |
07b8481d JS |
519 | { |
520 | struct i2c_client *client = to_i2c_client(dev); | |
521 | struct mms114_data *data = i2c_get_clientdata(client); | |
522 | struct input_dev *input_dev = data->input_dev; | |
523 | int id; | |
524 | ||
525 | /* Release all touch */ | |
526 | for (id = 0; id < MMS114_MAX_TOUCH; id++) { | |
527 | input_mt_slot(input_dev, id); | |
528 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false); | |
529 | } | |
530 | ||
531 | input_mt_report_pointer_emulation(input_dev, true); | |
532 | input_sync(input_dev); | |
533 | ||
534 | mutex_lock(&input_dev->mutex); | |
535 | if (input_dev->users) | |
536 | mms114_stop(data); | |
537 | mutex_unlock(&input_dev->mutex); | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
02b6a58b | 542 | static int __maybe_unused mms114_resume(struct device *dev) |
07b8481d JS |
543 | { |
544 | struct i2c_client *client = to_i2c_client(dev); | |
545 | struct mms114_data *data = i2c_get_clientdata(client); | |
546 | struct input_dev *input_dev = data->input_dev; | |
547 | int error; | |
548 | ||
549 | mutex_lock(&input_dev->mutex); | |
550 | if (input_dev->users) { | |
551 | error = mms114_start(data); | |
552 | if (error < 0) { | |
553 | mutex_unlock(&input_dev->mutex); | |
554 | return error; | |
555 | } | |
556 | } | |
557 | mutex_unlock(&input_dev->mutex); | |
558 | ||
559 | return 0; | |
560 | } | |
07b8481d JS |
561 | |
562 | static SIMPLE_DEV_PM_OPS(mms114_pm_ops, mms114_suspend, mms114_resume); | |
563 | ||
564 | static const struct i2c_device_id mms114_id[] = { | |
565 | { "mms114", 0 }, | |
566 | { } | |
567 | }; | |
568 | MODULE_DEVICE_TABLE(i2c, mms114_id); | |
569 | ||
ad5396ee | 570 | #ifdef CONFIG_OF |
e3c3f4a9 | 571 | static const struct of_device_id mms114_dt_match[] = { |
ad5396ee TF |
572 | { .compatible = "melfas,mms114" }, |
573 | { } | |
574 | }; | |
02d9bd05 | 575 | MODULE_DEVICE_TABLE(of, mms114_dt_match); |
ad5396ee TF |
576 | #endif |
577 | ||
07b8481d JS |
578 | static struct i2c_driver mms114_driver = { |
579 | .driver = { | |
580 | .name = "mms114", | |
07b8481d | 581 | .pm = &mms114_pm_ops, |
ad5396ee | 582 | .of_match_table = of_match_ptr(mms114_dt_match), |
07b8481d JS |
583 | }, |
584 | .probe = mms114_probe, | |
07b8481d JS |
585 | .id_table = mms114_id, |
586 | }; | |
587 | ||
588 | module_i2c_driver(mms114_driver); | |
589 | ||
590 | /* Module information */ | |
591 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
592 | MODULE_DESCRIPTION("MELFAS mms114 Touchscreen driver"); | |
593 | MODULE_LICENSE("GPL"); |