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