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 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; | |
190 | if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0) | |
191 | return 0; | |
192 | adapter = to_i2c_adapter(dev); | |
da3b0ab7 MW |
193 | if (strncmp(adapter->name, lookup->name, strlen(lookup->name)) == 0 && |
194 | lookup->n++ == lookup->instance) | |
195 | return 1; | |
196 | return 0; | |
d1381f45 BL |
197 | } |
198 | ||
9ad36924 | 199 | static int find_i2c_adapter_num(enum i2c_adapter_type type) |
d1381f45 BL |
200 | { |
201 | struct device *dev = NULL; | |
202 | struct i2c_adapter *adapter; | |
da3b0ab7 MW |
203 | struct i2c_lookup lookup; |
204 | ||
205 | memset(&lookup, 0, sizeof(lookup)); | |
206 | lookup.name = i2c_adapter_names[type]; | |
207 | lookup.instance = (type == I2C_ADAPTER_DESIGNWARE_1) ? 1 : 0; | |
208 | ||
d1381f45 | 209 | /* find the adapter by name */ |
da3b0ab7 | 210 | dev = bus_find_device(&i2c_bus_type, NULL, &lookup, __find_i2c_adap); |
d1381f45 | 211 | if (!dev) { |
9ad36924 BL |
212 | /* Adapters may appear later. Deferred probing will retry */ |
213 | pr_notice("%s: i2c adapter %s not found on system.\n", __func__, | |
da3b0ab7 | 214 | lookup.name); |
d1381f45 BL |
215 | return -ENODEV; |
216 | } | |
217 | adapter = to_i2c_adapter(dev); | |
218 | return adapter->nr; | |
219 | } | |
220 | ||
bcaf089c BL |
221 | /* |
222 | * Takes a list of addresses in addrs as such : | |
223 | * { addr1, ... , addrn, I2C_CLIENT_END }; | |
224 | * add_probed_i2c_device will use i2c_new_probed_device | |
225 | * and probe for devices at all of the addresses listed. | |
226 | * Returns NULL if no devices found. | |
227 | * See Documentation/i2c/instantiating-devices for more information. | |
228 | */ | |
9ad36924 | 229 | static struct i2c_client *add_probed_i2c_device( |
bcaf089c BL |
230 | const char *name, |
231 | enum i2c_adapter_type type, | |
232 | struct i2c_board_info *info, | |
233 | const unsigned short *addrs) | |
234 | { | |
235 | return __add_probed_i2c_device(name, | |
236 | find_i2c_adapter_num(type), | |
237 | info, | |
238 | addrs); | |
239 | } | |
240 | ||
d1381f45 BL |
241 | /* |
242 | * Probes for a device at a single address, the one provided by | |
243 | * info->addr. | |
244 | * Returns NULL if no device found. | |
245 | */ | |
9ad36924 | 246 | static struct i2c_client *add_i2c_device(const char *name, |
e7b28845 BL |
247 | enum i2c_adapter_type type, |
248 | struct i2c_board_info *info) | |
d1381f45 BL |
249 | { |
250 | const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END }; | |
251 | return __add_probed_i2c_device(name, | |
e7b28845 | 252 | find_i2c_adapter_num(type), |
d1381f45 BL |
253 | info, |
254 | addr_list); | |
255 | } | |
256 | ||
9ad36924 | 257 | static int setup_cyapa_tp(enum i2c_adapter_type type) |
d1381f45 | 258 | { |
9ad36924 BL |
259 | if (tp) |
260 | return 0; | |
261 | ||
ec199dd5 AD |
262 | /* add cyapa touchpad */ |
263 | tp = add_i2c_device("trackpad", type, &cyapa_device); | |
9ad36924 | 264 | return (!tp) ? -EAGAIN : 0; |
d1381f45 BL |
265 | } |
266 | ||
9ad36924 | 267 | static int setup_atmel_224s_tp(enum i2c_adapter_type type) |
8e1ad4c4 BL |
268 | { |
269 | const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR, | |
270 | ATMEL_TP_I2C_ADDR, | |
271 | I2C_CLIENT_END }; | |
9ad36924 BL |
272 | if (tp) |
273 | return 0; | |
8e1ad4c4 | 274 | |
ec199dd5 AD |
275 | /* add atmel mxt touchpad */ |
276 | tp = add_probed_i2c_device("trackpad", type, | |
8e1ad4c4 | 277 | &atmel_224s_tp_device, addr_list); |
9ad36924 | 278 | return (!tp) ? -EAGAIN : 0; |
8e1ad4c4 BL |
279 | } |
280 | ||
9ad36924 | 281 | static int setup_atmel_1664s_ts(enum i2c_adapter_type type) |
33a84f8a YS |
282 | { |
283 | const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR, | |
284 | ATMEL_TS_I2C_ADDR, | |
285 | I2C_CLIENT_END }; | |
9ad36924 BL |
286 | if (ts) |
287 | return 0; | |
33a84f8a | 288 | |
ec199dd5 AD |
289 | /* add atmel mxt touch device */ |
290 | ts = add_probed_i2c_device("touchscreen", type, | |
33a84f8a | 291 | &atmel_1664s_device, addr_list); |
9ad36924 | 292 | return (!ts) ? -EAGAIN : 0; |
33a84f8a YS |
293 | } |
294 | ||
9ad36924 | 295 | static int setup_isl29018_als(enum i2c_adapter_type type) |
d1381f45 | 296 | { |
9ad36924 BL |
297 | if (als) |
298 | return 0; | |
299 | ||
d1381f45 | 300 | /* add isl29018 light sensor */ |
ec199dd5 | 301 | als = add_i2c_device("lightsensor", type, &isl_als_device); |
9ad36924 | 302 | return (!als) ? -EAGAIN : 0; |
d1381f45 BL |
303 | } |
304 | ||
9ad36924 | 305 | static int setup_tsl2583_als(enum i2c_adapter_type type) |
cc5c3985 | 306 | { |
9ad36924 BL |
307 | if (als) |
308 | return 0; | |
309 | ||
ec199dd5 AD |
310 | /* add tsl2583 light sensor */ |
311 | als = add_i2c_device(NULL, type, &tsl2583_als_device); | |
9ad36924 | 312 | return (!als) ? -EAGAIN : 0; |
cc5c3985 BL |
313 | } |
314 | ||
9ad36924 | 315 | static int setup_tsl2563_als(enum i2c_adapter_type type) |
8016bcbc | 316 | { |
9ad36924 BL |
317 | if (als) |
318 | return 0; | |
319 | ||
ec199dd5 AD |
320 | /* add tsl2563 light sensor */ |
321 | als = add_i2c_device(NULL, type, &tsl2563_als_device); | |
9ad36924 | 322 | return (!als) ? -EAGAIN : 0; |
8016bcbc BL |
323 | } |
324 | ||
9ad36924 | 325 | static int __init chromeos_laptop_dmi_matched(const struct dmi_system_id *id) |
aabf3f44 | 326 | { |
9ad36924 BL |
327 | cros_laptop = (void *)id->driver_data; |
328 | pr_debug("DMI Matched %s.\n", id->ident); | |
ec199dd5 | 329 | |
9ad36924 BL |
330 | /* Indicate to dmi_scan that processing is done. */ |
331 | return 1; | |
332 | } | |
333 | ||
334 | static int chromeos_laptop_probe(struct platform_device *pdev) | |
335 | { | |
336 | int i; | |
337 | int ret = 0; | |
ec199dd5 AD |
338 | |
339 | for (i = 0; i < MAX_I2C_PERIPHERALS; i++) { | |
340 | struct i2c_peripheral *i2c_dev; | |
341 | ||
342 | i2c_dev = &cros_laptop->i2c_peripherals[i]; | |
343 | ||
344 | /* No more peripherals. */ | |
345 | if (i2c_dev->add == NULL) | |
346 | break; | |
347 | ||
9ad36924 BL |
348 | /* Add the device. Set -EPROBE_DEFER on any failure */ |
349 | if (i2c_dev->add(i2c_dev->type)) | |
350 | ret = -EPROBE_DEFER; | |
ec199dd5 AD |
351 | } |
352 | ||
9ad36924 | 353 | return ret; |
aabf3f44 BL |
354 | } |
355 | ||
9ad36924 | 356 | static struct chromeos_laptop samsung_series_5_550 = { |
ec199dd5 AD |
357 | .i2c_peripherals = { |
358 | /* Touchpad. */ | |
359 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
360 | /* Light Sensor. */ | |
361 | { .add = setup_isl29018_als, I2C_ADAPTER_SMBUS }, | |
362 | }, | |
363 | }; | |
364 | ||
9ad36924 | 365 | static struct chromeos_laptop samsung_series_5 = { |
ec199dd5 AD |
366 | .i2c_peripherals = { |
367 | /* Light Sensor. */ | |
368 | { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS }, | |
369 | }, | |
370 | }; | |
371 | ||
9ad36924 | 372 | static struct chromeos_laptop chromebook_pixel = { |
ec199dd5 AD |
373 | .i2c_peripherals = { |
374 | /* Touch Screen. */ | |
375 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL }, | |
376 | /* Touchpad. */ | |
377 | { .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC }, | |
378 | /* Light Sensor. */ | |
379 | { .add = setup_isl29018_als, I2C_ADAPTER_PANEL }, | |
380 | }, | |
381 | }; | |
382 | ||
5ea9567f BL |
383 | static struct chromeos_laptop hp_chromebook_14 = { |
384 | .i2c_peripherals = { | |
385 | /* Touchpad. */ | |
386 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
387 | }, | |
388 | }; | |
389 | ||
0e1e5e59 MH |
390 | static struct chromeos_laptop dell_chromebook_11 = { |
391 | .i2c_peripherals = { | |
392 | /* Touchpad. */ | |
393 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
394 | }, | |
395 | }; | |
396 | ||
9ad36924 | 397 | static struct chromeos_laptop acer_c7_chromebook = { |
ec199dd5 AD |
398 | .i2c_peripherals = { |
399 | /* Touchpad. */ | |
400 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
401 | }, | |
402 | }; | |
403 | ||
9ad36924 | 404 | static struct chromeos_laptop acer_ac700 = { |
ec199dd5 AD |
405 | .i2c_peripherals = { |
406 | /* Light Sensor. */ | |
407 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
408 | }, | |
409 | }; | |
410 | ||
da3b0ab7 MW |
411 | static struct chromeos_laptop acer_c720 = { |
412 | .i2c_peripherals = { | |
413 | /* Touchpad. */ | |
414 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
415 | /* Light Sensor. */ | |
416 | { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 }, | |
417 | }, | |
418 | }; | |
419 | ||
9ad36924 | 420 | static struct chromeos_laptop hp_pavilion_14_chromebook = { |
ec199dd5 AD |
421 | .i2c_peripherals = { |
422 | /* Touchpad. */ | |
423 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
424 | }, | |
425 | }; | |
426 | ||
9ad36924 | 427 | static struct chromeos_laptop cr48 = { |
ec199dd5 AD |
428 | .i2c_peripherals = { |
429 | /* Light Sensor. */ | |
430 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
431 | }, | |
432 | }; | |
433 | ||
434 | #define _CBDD(board_) \ | |
9ad36924 | 435 | .callback = chromeos_laptop_dmi_matched, \ |
ec199dd5 AD |
436 | .driver_data = (void *)&board_ |
437 | ||
cdddd23f | 438 | static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = { |
d1381f45 | 439 | { |
ec199dd5 | 440 | .ident = "Samsung Series 5 550", |
d1381f45 BL |
441 | .matches = { |
442 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"), | |
443 | DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"), | |
444 | }, | |
ec199dd5 | 445 | _CBDD(samsung_series_5_550), |
8e1ad4c4 | 446 | }, |
d1381f45 | 447 | { |
ec199dd5 | 448 | .ident = "Samsung Series 5", |
d1381f45 | 449 | .matches = { |
ec199dd5 | 450 | DMI_MATCH(DMI_PRODUCT_NAME, "Alex"), |
d1381f45 | 451 | }, |
ec199dd5 | 452 | _CBDD(samsung_series_5), |
d1381f45 | 453 | }, |
cc5c3985 | 454 | { |
ec199dd5 | 455 | .ident = "Chromebook Pixel", |
cc5c3985 BL |
456 | .matches = { |
457 | DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), | |
458 | DMI_MATCH(DMI_PRODUCT_NAME, "Link"), | |
459 | }, | |
ec199dd5 | 460 | _CBDD(chromebook_pixel), |
cc5c3985 | 461 | }, |
0e1e5e59 MH |
462 | { |
463 | .ident = "Wolf", | |
464 | .matches = { | |
465 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
466 | DMI_MATCH(DMI_PRODUCT_NAME, "Wolf"), | |
467 | }, | |
468 | _CBDD(dell_chromebook_11), | |
469 | }, | |
5ea9567f BL |
470 | { |
471 | .ident = "HP Chromebook 14", | |
472 | .matches = { | |
473 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
474 | DMI_MATCH(DMI_PRODUCT_NAME, "Falco"), | |
475 | }, | |
476 | _CBDD(hp_chromebook_14), | |
477 | }, | |
261f171f | 478 | { |
ec199dd5 | 479 | .ident = "Acer C7 Chromebook", |
261f171f BL |
480 | .matches = { |
481 | DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"), | |
482 | }, | |
ec199dd5 | 483 | _CBDD(acer_c7_chromebook), |
e65a624b BL |
484 | }, |
485 | { | |
ec199dd5 | 486 | .ident = "Acer AC700", |
e65a624b | 487 | .matches = { |
ec199dd5 | 488 | DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), |
e65a624b | 489 | }, |
ec199dd5 | 490 | _CBDD(acer_ac700), |
261f171f | 491 | }, |
da3b0ab7 MW |
492 | { |
493 | .ident = "Acer C720", | |
494 | .matches = { | |
495 | DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"), | |
496 | }, | |
497 | _CBDD(acer_c720), | |
498 | }, | |
8016bcbc | 499 | { |
ec199dd5 | 500 | .ident = "HP Pavilion 14 Chromebook", |
8016bcbc | 501 | .matches = { |
ec199dd5 | 502 | DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"), |
8016bcbc | 503 | }, |
ec199dd5 | 504 | _CBDD(hp_pavilion_14_chromebook), |
8016bcbc | 505 | }, |
aabf3f44 | 506 | { |
ec199dd5 | 507 | .ident = "Cr-48", |
aabf3f44 BL |
508 | .matches = { |
509 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
510 | }, | |
ec199dd5 | 511 | _CBDD(cr48), |
aabf3f44 | 512 | }, |
d1381f45 BL |
513 | { } |
514 | }; | |
515 | MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table); | |
516 | ||
9ad36924 BL |
517 | static struct platform_device *cros_platform_device; |
518 | ||
519 | static struct platform_driver cros_platform_driver = { | |
520 | .driver = { | |
521 | .name = "chromeos_laptop", | |
522 | .owner = THIS_MODULE, | |
523 | }, | |
524 | .probe = chromeos_laptop_probe, | |
525 | }; | |
526 | ||
d1381f45 BL |
527 | static int __init chromeos_laptop_init(void) |
528 | { | |
9ad36924 | 529 | int ret; |
d1381f45 BL |
530 | if (!dmi_check_system(chromeos_laptop_dmi_table)) { |
531 | pr_debug("%s unsupported system.\n", __func__); | |
532 | return -ENODEV; | |
533 | } | |
9ad36924 BL |
534 | |
535 | ret = platform_driver_register(&cros_platform_driver); | |
536 | if (ret) | |
537 | return ret; | |
538 | ||
539 | cros_platform_device = platform_device_alloc("chromeos_laptop", -1); | |
540 | if (!cros_platform_device) { | |
541 | ret = -ENOMEM; | |
542 | goto fail_platform_device1; | |
543 | } | |
544 | ||
545 | ret = platform_device_add(cros_platform_device); | |
546 | if (ret) | |
547 | goto fail_platform_device2; | |
548 | ||
d1381f45 | 549 | return 0; |
9ad36924 BL |
550 | |
551 | fail_platform_device2: | |
552 | platform_device_put(cros_platform_device); | |
553 | fail_platform_device1: | |
554 | platform_driver_unregister(&cros_platform_driver); | |
555 | return ret; | |
d1381f45 BL |
556 | } |
557 | ||
558 | static void __exit chromeos_laptop_exit(void) | |
559 | { | |
560 | if (als) | |
561 | i2c_unregister_device(als); | |
562 | if (tp) | |
563 | i2c_unregister_device(tp); | |
33a84f8a YS |
564 | if (ts) |
565 | i2c_unregister_device(ts); | |
2b8454a7 WY |
566 | |
567 | platform_device_unregister(cros_platform_device); | |
568 | platform_driver_unregister(&cros_platform_driver); | |
d1381f45 BL |
569 | } |
570 | ||
571 | module_init(chromeos_laptop_init); | |
572 | module_exit(chromeos_laptop_exit); | |
573 | ||
574 | MODULE_DESCRIPTION("Chrome OS Laptop driver"); | |
575 | MODULE_AUTHOR("Benson Leung <bleung@chromium.org>"); | |
576 | MODULE_LICENSE("GPL"); |