Commit | Line | Data |
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d1381f45 BL |
1 | /* |
2 | * chromeos_laptop.c - Driver to instantiate Chromebook i2c/smbus devices. | |
3 | * | |
4 | * Author : Benson Leung <bleung@chromium.org> | |
5 | * | |
6 | * Copyright (C) 2012 Google, Inc. | |
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 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/dmi.h> | |
25 | #include <linux/i2c.h> | |
2ef39204 BL |
26 | #include <linux/i2c/atmel_mxt_ts.h> |
27 | #include <linux/input.h> | |
28 | #include <linux/interrupt.h> | |
d1381f45 | 29 | #include <linux/module.h> |
9ad36924 | 30 | #include <linux/platform_device.h> |
d1381f45 | 31 | |
8e1ad4c4 BL |
32 | #define ATMEL_TP_I2C_ADDR 0x4b |
33 | #define ATMEL_TP_I2C_BL_ADDR 0x25 | |
33a84f8a YS |
34 | #define ATMEL_TS_I2C_ADDR 0x4a |
35 | #define ATMEL_TS_I2C_BL_ADDR 0x26 | |
d1381f45 BL |
36 | #define CYAPA_TP_I2C_ADDR 0x67 |
37 | #define ISL_ALS_I2C_ADDR 0x44 | |
aabf3f44 | 38 | #define TAOS_ALS_I2C_ADDR 0x29 |
d1381f45 | 39 | |
5502486a BL |
40 | #define MAX_I2C_DEVICE_DEFERRALS 5 |
41 | ||
d1381f45 BL |
42 | static struct i2c_client *als; |
43 | static struct i2c_client *tp; | |
33a84f8a | 44 | static struct i2c_client *ts; |
d1381f45 | 45 | |
6d3c1afe | 46 | static const char *i2c_adapter_names[] = { |
d1381f45 | 47 | "SMBus I801 adapter", |
741bf0c7 BL |
48 | "i915 gmbus vga", |
49 | "i915 gmbus panel", | |
da3b0ab7 MW |
50 | "i2c-designware-pci", |
51 | "i2c-designware-pci", | |
d1381f45 BL |
52 | }; |
53 | ||
54 | /* Keep this enum consistent with i2c_adapter_names */ | |
55 | enum i2c_adapter_type { | |
56 | I2C_ADAPTER_SMBUS = 0, | |
741bf0c7 BL |
57 | I2C_ADAPTER_VGADDC, |
58 | I2C_ADAPTER_PANEL, | |
da3b0ab7 MW |
59 | I2C_ADAPTER_DESIGNWARE_0, |
60 | I2C_ADAPTER_DESIGNWARE_1, | |
d1381f45 BL |
61 | }; |
62 | ||
5502486a BL |
63 | enum i2c_peripheral_state { |
64 | UNPROBED = 0, | |
65 | PROBED, | |
66 | TIMEDOUT, | |
d1381f45 BL |
67 | }; |
68 | ||
ec199dd5 | 69 | struct i2c_peripheral { |
9ad36924 | 70 | int (*add)(enum i2c_adapter_type type); |
ec199dd5 | 71 | enum i2c_adapter_type type; |
5502486a BL |
72 | enum i2c_peripheral_state state; |
73 | int tries; | |
ec199dd5 AD |
74 | }; |
75 | ||
76 | #define MAX_I2C_PERIPHERALS 3 | |
77 | ||
78 | struct chromeos_laptop { | |
79 | struct i2c_peripheral i2c_peripherals[MAX_I2C_PERIPHERALS]; | |
80 | }; | |
81 | ||
9ad36924 BL |
82 | static struct chromeos_laptop *cros_laptop; |
83 | ||
84 | static struct i2c_board_info cyapa_device = { | |
d1381f45 BL |
85 | I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR), |
86 | .flags = I2C_CLIENT_WAKE, | |
87 | }; | |
88 | ||
9ad36924 | 89 | static struct i2c_board_info isl_als_device = { |
d1381f45 BL |
90 | I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR), |
91 | }; | |
92 | ||
9ad36924 | 93 | static struct i2c_board_info tsl2583_als_device = { |
8016bcbc BL |
94 | I2C_BOARD_INFO("tsl2583", TAOS_ALS_I2C_ADDR), |
95 | }; | |
96 | ||
9ad36924 | 97 | static struct i2c_board_info tsl2563_als_device = { |
aabf3f44 BL |
98 | I2C_BOARD_INFO("tsl2563", TAOS_ALS_I2C_ADDR), |
99 | }; | |
100 | ||
fb5e4c3e ND |
101 | static int mxt_t19_keys[] = { |
102 | KEY_RESERVED, | |
103 | KEY_RESERVED, | |
104 | KEY_RESERVED, | |
105 | KEY_RESERVED, | |
106 | KEY_RESERVED, | |
107 | BTN_LEFT | |
108 | }; | |
109 | ||
2ef39204 | 110 | static struct mxt_platform_data atmel_224s_tp_platform_data = { |
2ef39204 | 111 | .irqflags = IRQF_TRIGGER_FALLING, |
fb5e4c3e ND |
112 | .t19_num_keys = ARRAY_SIZE(mxt_t19_keys), |
113 | .t19_keymap = mxt_t19_keys, | |
2ef39204 BL |
114 | }; |
115 | ||
9ad36924 | 116 | static struct i2c_board_info atmel_224s_tp_device = { |
8e1ad4c4 | 117 | I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR), |
2ef39204 | 118 | .platform_data = &atmel_224s_tp_platform_data, |
8e1ad4c4 BL |
119 | .flags = I2C_CLIENT_WAKE, |
120 | }; | |
121 | ||
2ef39204 | 122 | static struct mxt_platform_data atmel_1664s_platform_data = { |
2ef39204 | 123 | .irqflags = IRQF_TRIGGER_FALLING, |
2ef39204 BL |
124 | }; |
125 | ||
9ad36924 | 126 | static struct i2c_board_info atmel_1664s_device = { |
33a84f8a | 127 | I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR), |
2ef39204 | 128 | .platform_data = &atmel_1664s_platform_data, |
33a84f8a YS |
129 | .flags = I2C_CLIENT_WAKE, |
130 | }; | |
131 | ||
9ad36924 | 132 | static struct i2c_client *__add_probed_i2c_device( |
d1381f45 BL |
133 | const char *name, |
134 | int bus, | |
135 | struct i2c_board_info *info, | |
136 | const unsigned short *addrs) | |
137 | { | |
138 | const struct dmi_device *dmi_dev; | |
139 | const struct dmi_dev_onboard *dev_data; | |
140 | struct i2c_adapter *adapter; | |
141 | struct i2c_client *client; | |
142 | ||
143 | if (bus < 0) | |
144 | return NULL; | |
145 | /* | |
146 | * If a name is specified, look for irq platform information stashed | |
147 | * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware. | |
148 | */ | |
149 | if (name) { | |
150 | dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL); | |
151 | if (!dmi_dev) { | |
152 | pr_err("%s failed to dmi find device %s.\n", | |
153 | __func__, | |
154 | name); | |
155 | return NULL; | |
156 | } | |
157 | dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data; | |
158 | if (!dev_data) { | |
159 | pr_err("%s failed to get data from dmi for %s.\n", | |
160 | __func__, name); | |
161 | return NULL; | |
162 | } | |
163 | info->irq = dev_data->instance; | |
164 | } | |
165 | ||
166 | adapter = i2c_get_adapter(bus); | |
167 | if (!adapter) { | |
168 | pr_err("%s failed to get i2c adapter %d.\n", __func__, bus); | |
169 | return NULL; | |
170 | } | |
171 | ||
172 | /* add the i2c device */ | |
173 | client = i2c_new_probed_device(adapter, info, addrs, NULL); | |
174 | if (!client) | |
5502486a BL |
175 | pr_notice("%s failed to register device %d-%02x\n", |
176 | __func__, bus, info->addr); | |
d1381f45 BL |
177 | else |
178 | pr_debug("%s added i2c device %d-%02x\n", | |
179 | __func__, bus, info->addr); | |
180 | ||
181 | i2c_put_adapter(adapter); | |
182 | return client; | |
183 | } | |
184 | ||
da3b0ab7 MW |
185 | struct i2c_lookup { |
186 | const char *name; | |
187 | int instance; | |
188 | int n; | |
189 | }; | |
190 | ||
9ad36924 | 191 | static int __find_i2c_adap(struct device *dev, void *data) |
d1381f45 | 192 | { |
da3b0ab7 | 193 | struct i2c_lookup *lookup = data; |
d1381f45 BL |
194 | static const char *prefix = "i2c-"; |
195 | struct i2c_adapter *adapter; | |
49c68a21 | 196 | |
d1381f45 BL |
197 | if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0) |
198 | return 0; | |
199 | adapter = to_i2c_adapter(dev); | |
da3b0ab7 MW |
200 | if (strncmp(adapter->name, lookup->name, strlen(lookup->name)) == 0 && |
201 | lookup->n++ == lookup->instance) | |
202 | return 1; | |
203 | return 0; | |
d1381f45 BL |
204 | } |
205 | ||
9ad36924 | 206 | static int find_i2c_adapter_num(enum i2c_adapter_type type) |
d1381f45 BL |
207 | { |
208 | struct device *dev = NULL; | |
209 | struct i2c_adapter *adapter; | |
da3b0ab7 MW |
210 | struct i2c_lookup lookup; |
211 | ||
212 | memset(&lookup, 0, sizeof(lookup)); | |
213 | lookup.name = i2c_adapter_names[type]; | |
214 | lookup.instance = (type == I2C_ADAPTER_DESIGNWARE_1) ? 1 : 0; | |
215 | ||
d1381f45 | 216 | /* find the adapter by name */ |
da3b0ab7 | 217 | dev = bus_find_device(&i2c_bus_type, NULL, &lookup, __find_i2c_adap); |
d1381f45 | 218 | if (!dev) { |
9ad36924 BL |
219 | /* Adapters may appear later. Deferred probing will retry */ |
220 | pr_notice("%s: i2c adapter %s not found on system.\n", __func__, | |
da3b0ab7 | 221 | lookup.name); |
d1381f45 BL |
222 | return -ENODEV; |
223 | } | |
224 | adapter = to_i2c_adapter(dev); | |
225 | return adapter->nr; | |
226 | } | |
227 | ||
bcaf089c BL |
228 | /* |
229 | * Takes a list of addresses in addrs as such : | |
230 | * { addr1, ... , addrn, I2C_CLIENT_END }; | |
231 | * add_probed_i2c_device will use i2c_new_probed_device | |
232 | * and probe for devices at all of the addresses listed. | |
233 | * Returns NULL if no devices found. | |
234 | * See Documentation/i2c/instantiating-devices for more information. | |
235 | */ | |
9ad36924 | 236 | static struct i2c_client *add_probed_i2c_device( |
bcaf089c BL |
237 | const char *name, |
238 | enum i2c_adapter_type type, | |
239 | struct i2c_board_info *info, | |
240 | const unsigned short *addrs) | |
241 | { | |
242 | return __add_probed_i2c_device(name, | |
243 | find_i2c_adapter_num(type), | |
244 | info, | |
245 | addrs); | |
246 | } | |
247 | ||
d1381f45 BL |
248 | /* |
249 | * Probes for a device at a single address, the one provided by | |
250 | * info->addr. | |
251 | * Returns NULL if no device found. | |
252 | */ | |
9ad36924 | 253 | static struct i2c_client *add_i2c_device(const char *name, |
e7b28845 BL |
254 | enum i2c_adapter_type type, |
255 | struct i2c_board_info *info) | |
d1381f45 BL |
256 | { |
257 | const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END }; | |
49c68a21 | 258 | |
d1381f45 | 259 | return __add_probed_i2c_device(name, |
e7b28845 | 260 | find_i2c_adapter_num(type), |
d1381f45 BL |
261 | info, |
262 | addr_list); | |
263 | } | |
264 | ||
9ad36924 | 265 | static int setup_cyapa_tp(enum i2c_adapter_type type) |
d1381f45 | 266 | { |
9ad36924 BL |
267 | if (tp) |
268 | return 0; | |
269 | ||
ec199dd5 AD |
270 | /* add cyapa touchpad */ |
271 | tp = add_i2c_device("trackpad", type, &cyapa_device); | |
9ad36924 | 272 | return (!tp) ? -EAGAIN : 0; |
d1381f45 BL |
273 | } |
274 | ||
9ad36924 | 275 | static int setup_atmel_224s_tp(enum i2c_adapter_type type) |
8e1ad4c4 BL |
276 | { |
277 | const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR, | |
278 | ATMEL_TP_I2C_ADDR, | |
279 | I2C_CLIENT_END }; | |
9ad36924 BL |
280 | if (tp) |
281 | return 0; | |
8e1ad4c4 | 282 | |
ec199dd5 AD |
283 | /* add atmel mxt touchpad */ |
284 | tp = add_probed_i2c_device("trackpad", type, | |
8e1ad4c4 | 285 | &atmel_224s_tp_device, addr_list); |
9ad36924 | 286 | return (!tp) ? -EAGAIN : 0; |
8e1ad4c4 BL |
287 | } |
288 | ||
9ad36924 | 289 | static int setup_atmel_1664s_ts(enum i2c_adapter_type type) |
33a84f8a YS |
290 | { |
291 | const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR, | |
292 | ATMEL_TS_I2C_ADDR, | |
293 | I2C_CLIENT_END }; | |
9ad36924 BL |
294 | if (ts) |
295 | return 0; | |
33a84f8a | 296 | |
ec199dd5 AD |
297 | /* add atmel mxt touch device */ |
298 | ts = add_probed_i2c_device("touchscreen", type, | |
33a84f8a | 299 | &atmel_1664s_device, addr_list); |
9ad36924 | 300 | return (!ts) ? -EAGAIN : 0; |
33a84f8a YS |
301 | } |
302 | ||
9ad36924 | 303 | static int setup_isl29018_als(enum i2c_adapter_type type) |
d1381f45 | 304 | { |
9ad36924 BL |
305 | if (als) |
306 | return 0; | |
307 | ||
d1381f45 | 308 | /* add isl29018 light sensor */ |
ec199dd5 | 309 | als = add_i2c_device("lightsensor", type, &isl_als_device); |
9ad36924 | 310 | return (!als) ? -EAGAIN : 0; |
d1381f45 BL |
311 | } |
312 | ||
9ad36924 | 313 | static int setup_tsl2583_als(enum i2c_adapter_type type) |
cc5c3985 | 314 | { |
9ad36924 BL |
315 | if (als) |
316 | return 0; | |
317 | ||
ec199dd5 AD |
318 | /* add tsl2583 light sensor */ |
319 | als = add_i2c_device(NULL, type, &tsl2583_als_device); | |
9ad36924 | 320 | return (!als) ? -EAGAIN : 0; |
cc5c3985 BL |
321 | } |
322 | ||
9ad36924 | 323 | static int setup_tsl2563_als(enum i2c_adapter_type type) |
8016bcbc | 324 | { |
9ad36924 BL |
325 | if (als) |
326 | return 0; | |
327 | ||
ec199dd5 AD |
328 | /* add tsl2563 light sensor */ |
329 | als = add_i2c_device(NULL, type, &tsl2563_als_device); | |
9ad36924 | 330 | return (!als) ? -EAGAIN : 0; |
8016bcbc BL |
331 | } |
332 | ||
9ad36924 | 333 | static int __init chromeos_laptop_dmi_matched(const struct dmi_system_id *id) |
aabf3f44 | 334 | { |
9ad36924 BL |
335 | cros_laptop = (void *)id->driver_data; |
336 | pr_debug("DMI Matched %s.\n", id->ident); | |
ec199dd5 | 337 | |
9ad36924 BL |
338 | /* Indicate to dmi_scan that processing is done. */ |
339 | return 1; | |
340 | } | |
341 | ||
342 | static int chromeos_laptop_probe(struct platform_device *pdev) | |
343 | { | |
344 | int i; | |
345 | int ret = 0; | |
ec199dd5 AD |
346 | |
347 | for (i = 0; i < MAX_I2C_PERIPHERALS; i++) { | |
348 | struct i2c_peripheral *i2c_dev; | |
349 | ||
350 | i2c_dev = &cros_laptop->i2c_peripherals[i]; | |
351 | ||
352 | /* No more peripherals. */ | |
353 | if (i2c_dev->add == NULL) | |
354 | break; | |
355 | ||
5502486a BL |
356 | if (i2c_dev->state == TIMEDOUT || i2c_dev->state == PROBED) |
357 | continue; | |
358 | ||
359 | /* | |
360 | * Check that the i2c adapter is present. | |
361 | * -EPROBE_DEFER if missing as the adapter may appear much | |
362 | * later. | |
363 | */ | |
364 | if (find_i2c_adapter_num(i2c_dev->type) == -ENODEV) { | |
9ad36924 | 365 | ret = -EPROBE_DEFER; |
5502486a BL |
366 | continue; |
367 | } | |
368 | ||
369 | /* Add the device. */ | |
370 | if (i2c_dev->add(i2c_dev->type) == -EAGAIN) { | |
371 | /* | |
372 | * Set -EPROBE_DEFER a limited num of times | |
373 | * if device is not successfully added. | |
374 | */ | |
375 | if (++i2c_dev->tries < MAX_I2C_DEVICE_DEFERRALS) { | |
376 | ret = -EPROBE_DEFER; | |
377 | } else { | |
378 | /* Ran out of tries. */ | |
379 | pr_notice("%s: Ran out of tries for device.\n", | |
380 | __func__); | |
381 | i2c_dev->state = TIMEDOUT; | |
382 | } | |
383 | } else { | |
384 | i2c_dev->state = PROBED; | |
385 | } | |
ec199dd5 AD |
386 | } |
387 | ||
9ad36924 | 388 | return ret; |
aabf3f44 BL |
389 | } |
390 | ||
9ad36924 | 391 | static struct chromeos_laptop samsung_series_5_550 = { |
ec199dd5 AD |
392 | .i2c_peripherals = { |
393 | /* Touchpad. */ | |
394 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
395 | /* Light Sensor. */ | |
396 | { .add = setup_isl29018_als, I2C_ADAPTER_SMBUS }, | |
397 | }, | |
398 | }; | |
399 | ||
9ad36924 | 400 | static struct chromeos_laptop samsung_series_5 = { |
ec199dd5 AD |
401 | .i2c_peripherals = { |
402 | /* Light Sensor. */ | |
403 | { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS }, | |
404 | }, | |
405 | }; | |
406 | ||
9ad36924 | 407 | static struct chromeos_laptop chromebook_pixel = { |
ec199dd5 AD |
408 | .i2c_peripherals = { |
409 | /* Touch Screen. */ | |
410 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL }, | |
411 | /* Touchpad. */ | |
412 | { .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC }, | |
413 | /* Light Sensor. */ | |
414 | { .add = setup_isl29018_als, I2C_ADAPTER_PANEL }, | |
415 | }, | |
416 | }; | |
417 | ||
5ea9567f BL |
418 | static struct chromeos_laptop hp_chromebook_14 = { |
419 | .i2c_peripherals = { | |
420 | /* Touchpad. */ | |
421 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
422 | }, | |
423 | }; | |
424 | ||
0e1e5e59 MH |
425 | static struct chromeos_laptop dell_chromebook_11 = { |
426 | .i2c_peripherals = { | |
427 | /* Touchpad. */ | |
428 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
429 | }, | |
430 | }; | |
431 | ||
963cb6fa GC |
432 | static struct chromeos_laptop toshiba_cb35 = { |
433 | .i2c_peripherals = { | |
434 | /* Touchpad. */ | |
435 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
436 | }, | |
437 | }; | |
438 | ||
9ad36924 | 439 | static struct chromeos_laptop acer_c7_chromebook = { |
ec199dd5 AD |
440 | .i2c_peripherals = { |
441 | /* Touchpad. */ | |
442 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
443 | }, | |
444 | }; | |
445 | ||
9ad36924 | 446 | static struct chromeos_laptop acer_ac700 = { |
ec199dd5 AD |
447 | .i2c_peripherals = { |
448 | /* Light Sensor. */ | |
449 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
450 | }, | |
451 | }; | |
452 | ||
da3b0ab7 MW |
453 | static struct chromeos_laptop acer_c720 = { |
454 | .i2c_peripherals = { | |
b90b3c4a MM |
455 | /* Touchscreen. */ |
456 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 }, | |
da3b0ab7 MW |
457 | /* Touchpad. */ |
458 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
459 | /* Light Sensor. */ | |
460 | { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 }, | |
461 | }, | |
462 | }; | |
463 | ||
9ad36924 | 464 | static struct chromeos_laptop hp_pavilion_14_chromebook = { |
ec199dd5 AD |
465 | .i2c_peripherals = { |
466 | /* Touchpad. */ | |
467 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
468 | }, | |
469 | }; | |
470 | ||
9ad36924 | 471 | static struct chromeos_laptop cr48 = { |
ec199dd5 AD |
472 | .i2c_peripherals = { |
473 | /* Light Sensor. */ | |
474 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
475 | }, | |
476 | }; | |
477 | ||
478 | #define _CBDD(board_) \ | |
9ad36924 | 479 | .callback = chromeos_laptop_dmi_matched, \ |
ec199dd5 AD |
480 | .driver_data = (void *)&board_ |
481 | ||
cdddd23f | 482 | static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = { |
d1381f45 | 483 | { |
ec199dd5 | 484 | .ident = "Samsung Series 5 550", |
d1381f45 BL |
485 | .matches = { |
486 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"), | |
487 | DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"), | |
488 | }, | |
ec199dd5 | 489 | _CBDD(samsung_series_5_550), |
8e1ad4c4 | 490 | }, |
d1381f45 | 491 | { |
ec199dd5 | 492 | .ident = "Samsung Series 5", |
d1381f45 | 493 | .matches = { |
ec199dd5 | 494 | DMI_MATCH(DMI_PRODUCT_NAME, "Alex"), |
d1381f45 | 495 | }, |
ec199dd5 | 496 | _CBDD(samsung_series_5), |
d1381f45 | 497 | }, |
cc5c3985 | 498 | { |
ec199dd5 | 499 | .ident = "Chromebook Pixel", |
cc5c3985 BL |
500 | .matches = { |
501 | DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), | |
502 | DMI_MATCH(DMI_PRODUCT_NAME, "Link"), | |
503 | }, | |
ec199dd5 | 504 | _CBDD(chromebook_pixel), |
cc5c3985 | 505 | }, |
0e1e5e59 MH |
506 | { |
507 | .ident = "Wolf", | |
508 | .matches = { | |
509 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
510 | DMI_MATCH(DMI_PRODUCT_NAME, "Wolf"), | |
511 | }, | |
512 | _CBDD(dell_chromebook_11), | |
513 | }, | |
5ea9567f BL |
514 | { |
515 | .ident = "HP Chromebook 14", | |
516 | .matches = { | |
517 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
518 | DMI_MATCH(DMI_PRODUCT_NAME, "Falco"), | |
519 | }, | |
520 | _CBDD(hp_chromebook_14), | |
521 | }, | |
963cb6fa GC |
522 | { |
523 | .ident = "Toshiba CB35", | |
524 | .matches = { | |
525 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
526 | DMI_MATCH(DMI_PRODUCT_NAME, "Leon"), | |
527 | }, | |
528 | _CBDD(toshiba_cb35), | |
529 | }, | |
261f171f | 530 | { |
ec199dd5 | 531 | .ident = "Acer C7 Chromebook", |
261f171f BL |
532 | .matches = { |
533 | DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"), | |
534 | }, | |
ec199dd5 | 535 | _CBDD(acer_c7_chromebook), |
e65a624b BL |
536 | }, |
537 | { | |
ec199dd5 | 538 | .ident = "Acer AC700", |
e65a624b | 539 | .matches = { |
ec199dd5 | 540 | DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), |
e65a624b | 541 | }, |
ec199dd5 | 542 | _CBDD(acer_ac700), |
261f171f | 543 | }, |
da3b0ab7 MW |
544 | { |
545 | .ident = "Acer C720", | |
546 | .matches = { | |
547 | DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"), | |
548 | }, | |
549 | _CBDD(acer_c720), | |
550 | }, | |
8016bcbc | 551 | { |
ec199dd5 | 552 | .ident = "HP Pavilion 14 Chromebook", |
8016bcbc | 553 | .matches = { |
ec199dd5 | 554 | DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"), |
8016bcbc | 555 | }, |
ec199dd5 | 556 | _CBDD(hp_pavilion_14_chromebook), |
8016bcbc | 557 | }, |
aabf3f44 | 558 | { |
ec199dd5 | 559 | .ident = "Cr-48", |
aabf3f44 BL |
560 | .matches = { |
561 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
562 | }, | |
ec199dd5 | 563 | _CBDD(cr48), |
aabf3f44 | 564 | }, |
d1381f45 BL |
565 | { } |
566 | }; | |
567 | MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table); | |
568 | ||
9ad36924 BL |
569 | static struct platform_device *cros_platform_device; |
570 | ||
571 | static struct platform_driver cros_platform_driver = { | |
572 | .driver = { | |
573 | .name = "chromeos_laptop", | |
9ad36924 BL |
574 | }, |
575 | .probe = chromeos_laptop_probe, | |
576 | }; | |
577 | ||
d1381f45 BL |
578 | static int __init chromeos_laptop_init(void) |
579 | { | |
9ad36924 | 580 | int ret; |
49c68a21 | 581 | |
d1381f45 BL |
582 | if (!dmi_check_system(chromeos_laptop_dmi_table)) { |
583 | pr_debug("%s unsupported system.\n", __func__); | |
584 | return -ENODEV; | |
585 | } | |
9ad36924 BL |
586 | |
587 | ret = platform_driver_register(&cros_platform_driver); | |
588 | if (ret) | |
589 | return ret; | |
590 | ||
591 | cros_platform_device = platform_device_alloc("chromeos_laptop", -1); | |
592 | if (!cros_platform_device) { | |
593 | ret = -ENOMEM; | |
594 | goto fail_platform_device1; | |
595 | } | |
596 | ||
597 | ret = platform_device_add(cros_platform_device); | |
598 | if (ret) | |
599 | goto fail_platform_device2; | |
600 | ||
d1381f45 | 601 | return 0; |
9ad36924 BL |
602 | |
603 | fail_platform_device2: | |
604 | platform_device_put(cros_platform_device); | |
605 | fail_platform_device1: | |
606 | platform_driver_unregister(&cros_platform_driver); | |
607 | return ret; | |
d1381f45 BL |
608 | } |
609 | ||
610 | static void __exit chromeos_laptop_exit(void) | |
611 | { | |
612 | if (als) | |
613 | i2c_unregister_device(als); | |
614 | if (tp) | |
615 | i2c_unregister_device(tp); | |
33a84f8a YS |
616 | if (ts) |
617 | i2c_unregister_device(ts); | |
2b8454a7 WY |
618 | |
619 | platform_device_unregister(cros_platform_device); | |
620 | platform_driver_unregister(&cros_platform_driver); | |
d1381f45 BL |
621 | } |
622 | ||
623 | module_init(chromeos_laptop_init); | |
624 | module_exit(chromeos_laptop_exit); | |
625 | ||
626 | MODULE_DESCRIPTION("Chrome OS Laptop driver"); | |
627 | MODULE_AUTHOR("Benson Leung <bleung@chromium.org>"); | |
628 | MODULE_LICENSE("GPL"); |