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3197704c RD |
1 | /* ------------------------------------------------------------------------- |
2 | * Copyright (C) 2014-2015, Intel Corporation | |
3 | * | |
4 | * Derived from: | |
5 | * gslX68X.c | |
6 | * Copyright (C) 2010-2015, Shanghai Sileadinc Co.Ltd | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * ------------------------------------------------------------------------- | |
18 | */ | |
19 | ||
20 | #include <linux/i2c.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/acpi.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/gpio/consumer.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/firmware.h> | |
27 | #include <linux/input.h> | |
28 | #include <linux/input/mt.h> | |
29 | #include <linux/input/touchscreen.h> | |
30 | #include <linux/pm.h> | |
31 | #include <linux/irq.h> | |
6f6deb48 | 32 | #include <linux/regulator/consumer.h> |
3197704c RD |
33 | |
34 | #include <asm/unaligned.h> | |
35 | ||
36 | #define SILEAD_TS_NAME "silead_ts" | |
37 | ||
38 | #define SILEAD_REG_RESET 0xE0 | |
39 | #define SILEAD_REG_DATA 0x80 | |
40 | #define SILEAD_REG_TOUCH_NR 0x80 | |
41 | #define SILEAD_REG_POWER 0xBC | |
42 | #define SILEAD_REG_CLOCK 0xE4 | |
43 | #define SILEAD_REG_STATUS 0xB0 | |
44 | #define SILEAD_REG_ID 0xFC | |
45 | #define SILEAD_REG_MEM_CHECK 0xB0 | |
46 | ||
47 | #define SILEAD_STATUS_OK 0x5A5A5A5A | |
48 | #define SILEAD_TS_DATA_LEN 44 | |
49 | #define SILEAD_CLOCK 0x04 | |
50 | ||
51 | #define SILEAD_CMD_RESET 0x88 | |
52 | #define SILEAD_CMD_START 0x00 | |
53 | ||
54 | #define SILEAD_POINT_DATA_LEN 0x04 | |
55 | #define SILEAD_POINT_Y_OFF 0x00 | |
56 | #define SILEAD_POINT_Y_MSB_OFF 0x01 | |
57 | #define SILEAD_POINT_X_OFF 0x02 | |
58 | #define SILEAD_POINT_X_MSB_OFF 0x03 | |
59 | #define SILEAD_TOUCH_ID_MASK 0xF0 | |
60 | ||
61 | #define SILEAD_CMD_SLEEP_MIN 10000 | |
62 | #define SILEAD_CMD_SLEEP_MAX 20000 | |
63 | #define SILEAD_POWER_SLEEP 20 | |
64 | #define SILEAD_STARTUP_SLEEP 30 | |
65 | ||
66 | #define SILEAD_MAX_FINGERS 10 | |
67 | ||
68 | enum silead_ts_power { | |
69 | SILEAD_POWER_ON = 1, | |
70 | SILEAD_POWER_OFF = 0 | |
71 | }; | |
72 | ||
73 | struct silead_ts_data { | |
74 | struct i2c_client *client; | |
75 | struct gpio_desc *gpio_power; | |
76 | struct input_dev *input; | |
6f6deb48 | 77 | struct regulator_bulk_data regulators[2]; |
3197704c RD |
78 | char fw_name[64]; |
79 | struct touchscreen_properties prop; | |
80 | u32 max_fingers; | |
81 | u32 chip_id; | |
82 | struct input_mt_pos pos[SILEAD_MAX_FINGERS]; | |
83 | int slots[SILEAD_MAX_FINGERS]; | |
84 | int id[SILEAD_MAX_FINGERS]; | |
85 | }; | |
86 | ||
87 | struct silead_fw_data { | |
88 | u32 offset; | |
89 | u32 val; | |
90 | }; | |
91 | ||
92 | static int silead_ts_request_input_dev(struct silead_ts_data *data) | |
93 | { | |
94 | struct device *dev = &data->client->dev; | |
95 | int error; | |
96 | ||
97 | data->input = devm_input_allocate_device(dev); | |
98 | if (!data->input) { | |
99 | dev_err(dev, | |
100 | "Failed to allocate input device\n"); | |
101 | return -ENOMEM; | |
102 | } | |
103 | ||
104 | input_set_abs_params(data->input, ABS_MT_POSITION_X, 0, 4095, 0, 0); | |
105 | input_set_abs_params(data->input, ABS_MT_POSITION_Y, 0, 4095, 0, 0); | |
106 | touchscreen_parse_properties(data->input, true, &data->prop); | |
107 | ||
108 | input_mt_init_slots(data->input, data->max_fingers, | |
109 | INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED | | |
110 | INPUT_MT_TRACK); | |
111 | ||
112 | data->input->name = SILEAD_TS_NAME; | |
113 | data->input->phys = "input/ts"; | |
114 | data->input->id.bustype = BUS_I2C; | |
115 | ||
116 | error = input_register_device(data->input); | |
117 | if (error) { | |
118 | dev_err(dev, "Failed to register input device: %d\n", error); | |
119 | return error; | |
120 | } | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
125 | static void silead_ts_set_power(struct i2c_client *client, | |
126 | enum silead_ts_power state) | |
127 | { | |
128 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
129 | ||
130 | if (data->gpio_power) { | |
131 | gpiod_set_value_cansleep(data->gpio_power, state); | |
132 | msleep(SILEAD_POWER_SLEEP); | |
133 | } | |
134 | } | |
135 | ||
136 | static void silead_ts_read_data(struct i2c_client *client) | |
137 | { | |
138 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
139 | struct input_dev *input = data->input; | |
140 | struct device *dev = &client->dev; | |
141 | u8 *bufp, buf[SILEAD_TS_DATA_LEN]; | |
142 | int touch_nr, error, i; | |
143 | ||
144 | error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_DATA, | |
145 | SILEAD_TS_DATA_LEN, buf); | |
146 | if (error < 0) { | |
147 | dev_err(dev, "Data read error %d\n", error); | |
148 | return; | |
149 | } | |
150 | ||
151 | touch_nr = buf[0]; | |
3197704c RD |
152 | if (touch_nr > data->max_fingers) { |
153 | dev_warn(dev, "More touches reported then supported %d > %d\n", | |
154 | touch_nr, data->max_fingers); | |
155 | touch_nr = data->max_fingers; | |
156 | } | |
157 | ||
158 | bufp = buf + SILEAD_POINT_DATA_LEN; | |
159 | for (i = 0; i < touch_nr; i++, bufp += SILEAD_POINT_DATA_LEN) { | |
160 | /* Bits 4-7 are the touch id */ | |
161 | data->id[i] = (bufp[SILEAD_POINT_X_MSB_OFF] & | |
162 | SILEAD_TOUCH_ID_MASK) >> 4; | |
163 | touchscreen_set_mt_pos(&data->pos[i], &data->prop, | |
164 | get_unaligned_le16(&bufp[SILEAD_POINT_X_OFF]) & 0xfff, | |
165 | get_unaligned_le16(&bufp[SILEAD_POINT_Y_OFF]) & 0xfff); | |
166 | } | |
167 | ||
168 | input_mt_assign_slots(input, data->slots, data->pos, touch_nr, 0); | |
169 | ||
170 | for (i = 0; i < touch_nr; i++) { | |
171 | input_mt_slot(input, data->slots[i]); | |
172 | input_mt_report_slot_state(input, MT_TOOL_FINGER, true); | |
173 | input_report_abs(input, ABS_MT_POSITION_X, data->pos[i].x); | |
174 | input_report_abs(input, ABS_MT_POSITION_Y, data->pos[i].y); | |
175 | ||
176 | dev_dbg(dev, "x=%d y=%d hw_id=%d sw_id=%d\n", data->pos[i].x, | |
177 | data->pos[i].y, data->id[i], data->slots[i]); | |
178 | } | |
179 | ||
180 | input_mt_sync_frame(input); | |
181 | input_sync(input); | |
182 | } | |
183 | ||
184 | static int silead_ts_init(struct i2c_client *client) | |
185 | { | |
186 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
187 | int error; | |
188 | ||
189 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, | |
190 | SILEAD_CMD_RESET); | |
191 | if (error) | |
192 | goto i2c_write_err; | |
193 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
194 | ||
195 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_TOUCH_NR, | |
196 | data->max_fingers); | |
197 | if (error) | |
198 | goto i2c_write_err; | |
199 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
200 | ||
201 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_CLOCK, | |
202 | SILEAD_CLOCK); | |
203 | if (error) | |
204 | goto i2c_write_err; | |
205 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
206 | ||
207 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, | |
208 | SILEAD_CMD_START); | |
209 | if (error) | |
210 | goto i2c_write_err; | |
211 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
212 | ||
213 | return 0; | |
214 | ||
215 | i2c_write_err: | |
216 | dev_err(&client->dev, "Registers clear error %d\n", error); | |
217 | return error; | |
218 | } | |
219 | ||
220 | static int silead_ts_reset(struct i2c_client *client) | |
221 | { | |
222 | int error; | |
223 | ||
224 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, | |
225 | SILEAD_CMD_RESET); | |
226 | if (error) | |
227 | goto i2c_write_err; | |
228 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
229 | ||
230 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_CLOCK, | |
231 | SILEAD_CLOCK); | |
232 | if (error) | |
233 | goto i2c_write_err; | |
234 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
235 | ||
236 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_POWER, | |
237 | SILEAD_CMD_START); | |
238 | if (error) | |
239 | goto i2c_write_err; | |
240 | usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); | |
241 | ||
242 | return 0; | |
243 | ||
244 | i2c_write_err: | |
245 | dev_err(&client->dev, "Chip reset error %d\n", error); | |
246 | return error; | |
247 | } | |
248 | ||
249 | static int silead_ts_startup(struct i2c_client *client) | |
250 | { | |
251 | int error; | |
252 | ||
253 | error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, 0x00); | |
254 | if (error) { | |
255 | dev_err(&client->dev, "Startup error %d\n", error); | |
256 | return error; | |
257 | } | |
258 | ||
259 | msleep(SILEAD_STARTUP_SLEEP); | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static int silead_ts_load_fw(struct i2c_client *client) | |
265 | { | |
266 | struct device *dev = &client->dev; | |
267 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
268 | unsigned int fw_size, i; | |
269 | const struct firmware *fw; | |
270 | struct silead_fw_data *fw_data; | |
271 | int error; | |
272 | ||
273 | dev_dbg(dev, "Firmware file name: %s", data->fw_name); | |
274 | ||
275 | error = request_firmware(&fw, data->fw_name, dev); | |
276 | if (error) { | |
277 | dev_err(dev, "Firmware request error %d\n", error); | |
278 | return error; | |
279 | } | |
280 | ||
281 | fw_size = fw->size / sizeof(*fw_data); | |
282 | fw_data = (struct silead_fw_data *)fw->data; | |
283 | ||
284 | for (i = 0; i < fw_size; i++) { | |
285 | error = i2c_smbus_write_i2c_block_data(client, | |
286 | fw_data[i].offset, | |
287 | 4, | |
288 | (u8 *)&fw_data[i].val); | |
289 | if (error) { | |
290 | dev_err(dev, "Firmware load error %d\n", error); | |
291 | break; | |
292 | } | |
293 | } | |
294 | ||
295 | release_firmware(fw); | |
296 | return error ?: 0; | |
297 | } | |
298 | ||
299 | static u32 silead_ts_get_status(struct i2c_client *client) | |
300 | { | |
301 | int error; | |
302 | __le32 status; | |
303 | ||
304 | error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_STATUS, | |
305 | sizeof(status), (u8 *)&status); | |
306 | if (error < 0) { | |
307 | dev_err(&client->dev, "Status read error %d\n", error); | |
308 | return error; | |
309 | } | |
310 | ||
311 | return le32_to_cpu(status); | |
312 | } | |
313 | ||
314 | static int silead_ts_get_id(struct i2c_client *client) | |
315 | { | |
316 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
317 | __le32 chip_id; | |
318 | int error; | |
319 | ||
320 | error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_ID, | |
321 | sizeof(chip_id), (u8 *)&chip_id); | |
322 | if (error < 0) { | |
323 | dev_err(&client->dev, "Chip ID read error %d\n", error); | |
324 | return error; | |
325 | } | |
326 | ||
327 | data->chip_id = le32_to_cpu(chip_id); | |
328 | dev_info(&client->dev, "Silead chip ID: 0x%8X", data->chip_id); | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
333 | static int silead_ts_setup(struct i2c_client *client) | |
334 | { | |
335 | int error; | |
336 | u32 status; | |
337 | ||
338 | silead_ts_set_power(client, SILEAD_POWER_OFF); | |
339 | silead_ts_set_power(client, SILEAD_POWER_ON); | |
340 | ||
341 | error = silead_ts_get_id(client); | |
342 | if (error) | |
343 | return error; | |
344 | ||
345 | error = silead_ts_init(client); | |
346 | if (error) | |
347 | return error; | |
348 | ||
349 | error = silead_ts_reset(client); | |
350 | if (error) | |
351 | return error; | |
352 | ||
353 | error = silead_ts_load_fw(client); | |
354 | if (error) | |
355 | return error; | |
356 | ||
357 | error = silead_ts_startup(client); | |
358 | if (error) | |
359 | return error; | |
360 | ||
361 | status = silead_ts_get_status(client); | |
362 | if (status != SILEAD_STATUS_OK) { | |
363 | dev_err(&client->dev, | |
364 | "Initialization error, status: 0x%X\n", status); | |
365 | return -ENODEV; | |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static irqreturn_t silead_ts_threaded_irq_handler(int irq, void *id) | |
372 | { | |
373 | struct silead_ts_data *data = id; | |
374 | struct i2c_client *client = data->client; | |
375 | ||
376 | silead_ts_read_data(client); | |
377 | ||
378 | return IRQ_HANDLED; | |
379 | } | |
380 | ||
381 | static void silead_ts_read_props(struct i2c_client *client) | |
382 | { | |
383 | struct silead_ts_data *data = i2c_get_clientdata(client); | |
384 | struct device *dev = &client->dev; | |
385 | const char *str; | |
386 | int error; | |
387 | ||
388 | error = device_property_read_u32(dev, "silead,max-fingers", | |
389 | &data->max_fingers); | |
390 | if (error) { | |
391 | dev_dbg(dev, "Max fingers read error %d\n", error); | |
392 | data->max_fingers = 5; /* Most devices handle up-to 5 fingers */ | |
393 | } | |
394 | ||
43ba5883 | 395 | error = device_property_read_string(dev, "firmware-name", &str); |
3197704c | 396 | if (!error) |
43ba5883 HG |
397 | snprintf(data->fw_name, sizeof(data->fw_name), |
398 | "silead/%s", str); | |
3197704c RD |
399 | else |
400 | dev_dbg(dev, "Firmware file name read error. Using default."); | |
401 | } | |
402 | ||
403 | #ifdef CONFIG_ACPI | |
404 | static int silead_ts_set_default_fw_name(struct silead_ts_data *data, | |
405 | const struct i2c_device_id *id) | |
406 | { | |
407 | const struct acpi_device_id *acpi_id; | |
408 | struct device *dev = &data->client->dev; | |
409 | int i; | |
410 | ||
411 | if (ACPI_HANDLE(dev)) { | |
412 | acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); | |
413 | if (!acpi_id) | |
414 | return -ENODEV; | |
415 | ||
4af2ff91 HG |
416 | snprintf(data->fw_name, sizeof(data->fw_name), |
417 | "silead/%s.fw", acpi_id->id); | |
3197704c RD |
418 | |
419 | for (i = 0; i < strlen(data->fw_name); i++) | |
420 | data->fw_name[i] = tolower(data->fw_name[i]); | |
421 | } else { | |
4af2ff91 HG |
422 | snprintf(data->fw_name, sizeof(data->fw_name), |
423 | "silead/%s.fw", id->name); | |
3197704c RD |
424 | } |
425 | ||
426 | return 0; | |
427 | } | |
428 | #else | |
429 | static int silead_ts_set_default_fw_name(struct silead_ts_data *data, | |
430 | const struct i2c_device_id *id) | |
431 | { | |
4af2ff91 HG |
432 | snprintf(data->fw_name, sizeof(data->fw_name), |
433 | "silead/%s.fw", id->name); | |
3197704c RD |
434 | return 0; |
435 | } | |
436 | #endif | |
437 | ||
6f6deb48 HG |
438 | static void silead_disable_regulator(void *arg) |
439 | { | |
440 | struct silead_ts_data *data = arg; | |
441 | ||
442 | regulator_bulk_disable(ARRAY_SIZE(data->regulators), data->regulators); | |
443 | } | |
444 | ||
3197704c RD |
445 | static int silead_ts_probe(struct i2c_client *client, |
446 | const struct i2c_device_id *id) | |
447 | { | |
448 | struct silead_ts_data *data; | |
449 | struct device *dev = &client->dev; | |
450 | int error; | |
451 | ||
452 | if (!i2c_check_functionality(client->adapter, | |
453 | I2C_FUNC_I2C | | |
454 | I2C_FUNC_SMBUS_READ_I2C_BLOCK | | |
455 | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) { | |
456 | dev_err(dev, "I2C functionality check failed\n"); | |
457 | return -ENXIO; | |
458 | } | |
459 | ||
460 | data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); | |
461 | if (!data) | |
462 | return -ENOMEM; | |
463 | ||
464 | i2c_set_clientdata(client, data); | |
465 | data->client = client; | |
466 | ||
467 | error = silead_ts_set_default_fw_name(data, id); | |
468 | if (error) | |
469 | return error; | |
470 | ||
471 | silead_ts_read_props(client); | |
472 | ||
473 | /* We must have the IRQ provided by DT or ACPI subsytem */ | |
474 | if (client->irq <= 0) | |
475 | return -ENODEV; | |
476 | ||
6f6deb48 HG |
477 | data->regulators[0].supply = "vddio"; |
478 | data->regulators[1].supply = "avdd"; | |
479 | error = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->regulators), | |
480 | data->regulators); | |
481 | if (error) | |
482 | return error; | |
483 | ||
484 | /* | |
485 | * Enable regulators at probe and disable them at remove, we need | |
486 | * to keep the chip powered otherwise it forgets its firmware. | |
487 | */ | |
488 | error = regulator_bulk_enable(ARRAY_SIZE(data->regulators), | |
489 | data->regulators); | |
490 | if (error) | |
491 | return error; | |
492 | ||
493 | error = devm_add_action_or_reset(dev, silead_disable_regulator, data); | |
494 | if (error) | |
495 | return error; | |
496 | ||
3197704c | 497 | /* Power GPIO pin */ |
5cab4d84 | 498 | data->gpio_power = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW); |
3197704c RD |
499 | if (IS_ERR(data->gpio_power)) { |
500 | if (PTR_ERR(data->gpio_power) != -EPROBE_DEFER) | |
501 | dev_err(dev, "Shutdown GPIO request failed\n"); | |
502 | return PTR_ERR(data->gpio_power); | |
503 | } | |
504 | ||
505 | error = silead_ts_setup(client); | |
506 | if (error) | |
507 | return error; | |
508 | ||
509 | error = silead_ts_request_input_dev(data); | |
510 | if (error) | |
511 | return error; | |
512 | ||
513 | error = devm_request_threaded_irq(dev, client->irq, | |
514 | NULL, silead_ts_threaded_irq_handler, | |
515 | IRQF_ONESHOT, client->name, data); | |
516 | if (error) { | |
517 | if (error != -EPROBE_DEFER) | |
518 | dev_err(dev, "IRQ request failed %d\n", error); | |
519 | return error; | |
520 | } | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
525 | static int __maybe_unused silead_ts_suspend(struct device *dev) | |
526 | { | |
527 | struct i2c_client *client = to_i2c_client(dev); | |
528 | ||
1943d172 | 529 | disable_irq(client->irq); |
3197704c RD |
530 | silead_ts_set_power(client, SILEAD_POWER_OFF); |
531 | return 0; | |
532 | } | |
533 | ||
534 | static int __maybe_unused silead_ts_resume(struct device *dev) | |
535 | { | |
536 | struct i2c_client *client = to_i2c_client(dev); | |
537 | int error, status; | |
538 | ||
539 | silead_ts_set_power(client, SILEAD_POWER_ON); | |
540 | ||
541 | error = silead_ts_reset(client); | |
542 | if (error) | |
543 | return error; | |
544 | ||
545 | error = silead_ts_startup(client); | |
546 | if (error) | |
547 | return error; | |
548 | ||
549 | status = silead_ts_get_status(client); | |
550 | if (status != SILEAD_STATUS_OK) { | |
551 | dev_err(dev, "Resume error, status: 0x%02x\n", status); | |
552 | return -ENODEV; | |
553 | } | |
554 | ||
1943d172 HG |
555 | enable_irq(client->irq); |
556 | ||
3197704c RD |
557 | return 0; |
558 | } | |
559 | ||
560 | static SIMPLE_DEV_PM_OPS(silead_ts_pm, silead_ts_suspend, silead_ts_resume); | |
561 | ||
562 | static const struct i2c_device_id silead_ts_id[] = { | |
563 | { "gsl1680", 0 }, | |
564 | { "gsl1688", 0 }, | |
565 | { "gsl3670", 0 }, | |
566 | { "gsl3675", 0 }, | |
567 | { "gsl3692", 0 }, | |
568 | { "mssl1680", 0 }, | |
569 | { } | |
570 | }; | |
571 | MODULE_DEVICE_TABLE(i2c, silead_ts_id); | |
572 | ||
573 | #ifdef CONFIG_ACPI | |
574 | static const struct acpi_device_id silead_ts_acpi_match[] = { | |
575 | { "GSL1680", 0 }, | |
576 | { "GSL1688", 0 }, | |
577 | { "GSL3670", 0 }, | |
578 | { "GSL3675", 0 }, | |
579 | { "GSL3692", 0 }, | |
580 | { "MSSL1680", 0 }, | |
581 | { } | |
582 | }; | |
583 | MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match); | |
584 | #endif | |
585 | ||
483e55d9 JMC |
586 | #ifdef CONFIG_OF |
587 | static const struct of_device_id silead_ts_of_match[] = { | |
588 | { .compatible = "silead,gsl1680" }, | |
589 | { .compatible = "silead,gsl1688" }, | |
590 | { .compatible = "silead,gsl3670" }, | |
591 | { .compatible = "silead,gsl3675" }, | |
592 | { .compatible = "silead,gsl3692" }, | |
593 | { }, | |
594 | }; | |
595 | MODULE_DEVICE_TABLE(of, silead_ts_of_match); | |
596 | #endif | |
597 | ||
3197704c RD |
598 | static struct i2c_driver silead_ts_driver = { |
599 | .probe = silead_ts_probe, | |
600 | .id_table = silead_ts_id, | |
601 | .driver = { | |
602 | .name = SILEAD_TS_NAME, | |
603 | .acpi_match_table = ACPI_PTR(silead_ts_acpi_match), | |
483e55d9 | 604 | .of_match_table = of_match_ptr(silead_ts_of_match), |
3197704c RD |
605 | .pm = &silead_ts_pm, |
606 | }, | |
607 | }; | |
608 | module_i2c_driver(silead_ts_driver); | |
609 | ||
610 | MODULE_AUTHOR("Robert Dolca <robert.dolca@intel.com>"); | |
611 | MODULE_DESCRIPTION("Silead I2C touchscreen driver"); | |
612 | MODULE_LICENSE("GPL"); |