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> | |
7f3884f7 | 26 | #include <linux/platform_data/atmel_mxt_ts.h> |
2ef39204 BL |
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", | |
ebaf31c4 JN |
50 | "Synopsys DesignWare I2C adapter", |
51 | "Synopsys DesignWare I2C adapter", | |
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, | |
7f3884f7 | 114 | .suspend_mode = MXT_SUSPEND_T9_CTRL, |
2ef39204 BL |
115 | }; |
116 | ||
9ad36924 | 117 | static struct i2c_board_info atmel_224s_tp_device = { |
8e1ad4c4 | 118 | I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR), |
2ef39204 | 119 | .platform_data = &atmel_224s_tp_platform_data, |
8e1ad4c4 BL |
120 | .flags = I2C_CLIENT_WAKE, |
121 | }; | |
122 | ||
2ef39204 | 123 | static struct mxt_platform_data atmel_1664s_platform_data = { |
2ef39204 | 124 | .irqflags = IRQF_TRIGGER_FALLING, |
7f3884f7 | 125 | .suspend_mode = MXT_SUSPEND_T9_CTRL, |
2ef39204 BL |
126 | }; |
127 | ||
9ad36924 | 128 | static struct i2c_board_info atmel_1664s_device = { |
33a84f8a | 129 | I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR), |
2ef39204 | 130 | .platform_data = &atmel_1664s_platform_data, |
33a84f8a YS |
131 | .flags = I2C_CLIENT_WAKE, |
132 | }; | |
133 | ||
9ad36924 | 134 | static struct i2c_client *__add_probed_i2c_device( |
d1381f45 BL |
135 | const char *name, |
136 | int bus, | |
137 | struct i2c_board_info *info, | |
96cba9b0 | 138 | const unsigned short *alt_addr_list) |
d1381f45 BL |
139 | { |
140 | const struct dmi_device *dmi_dev; | |
141 | const struct dmi_dev_onboard *dev_data; | |
142 | struct i2c_adapter *adapter; | |
96cba9b0 DT |
143 | struct i2c_client *client = NULL; |
144 | const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END }; | |
d1381f45 BL |
145 | |
146 | if (bus < 0) | |
147 | return NULL; | |
148 | /* | |
149 | * If a name is specified, look for irq platform information stashed | |
150 | * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware. | |
151 | */ | |
152 | if (name) { | |
153 | dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL); | |
154 | if (!dmi_dev) { | |
155 | pr_err("%s failed to dmi find device %s.\n", | |
156 | __func__, | |
157 | name); | |
158 | return NULL; | |
159 | } | |
160 | dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data; | |
161 | if (!dev_data) { | |
162 | pr_err("%s failed to get data from dmi for %s.\n", | |
163 | __func__, name); | |
164 | return NULL; | |
165 | } | |
166 | info->irq = dev_data->instance; | |
167 | } | |
168 | ||
169 | adapter = i2c_get_adapter(bus); | |
170 | if (!adapter) { | |
171 | pr_err("%s failed to get i2c adapter %d.\n", __func__, bus); | |
172 | return NULL; | |
173 | } | |
174 | ||
96cba9b0 DT |
175 | /* |
176 | * Add the i2c device. If we can't detect it at the primary | |
177 | * address we scan secondary addresses. In any case the client | |
178 | * structure gets assigned primary address. | |
179 | */ | |
180 | client = i2c_new_probed_device(adapter, info, addr_list, NULL); | |
181 | if (!client && alt_addr_list) { | |
182 | struct i2c_board_info dummy_info = { | |
183 | I2C_BOARD_INFO("dummy", info->addr), | |
184 | }; | |
185 | struct i2c_client *dummy; | |
186 | ||
187 | dummy = i2c_new_probed_device(adapter, &dummy_info, | |
188 | alt_addr_list, NULL); | |
189 | if (dummy) { | |
190 | pr_debug("%s %d-%02x is probed at %02x\n", | |
191 | __func__, bus, info->addr, dummy->addr); | |
192 | i2c_unregister_device(dummy); | |
193 | client = i2c_new_device(adapter, info); | |
194 | } | |
195 | } | |
196 | ||
d1381f45 | 197 | if (!client) |
5502486a BL |
198 | pr_notice("%s failed to register device %d-%02x\n", |
199 | __func__, bus, info->addr); | |
d1381f45 BL |
200 | else |
201 | pr_debug("%s added i2c device %d-%02x\n", | |
202 | __func__, bus, info->addr); | |
203 | ||
204 | i2c_put_adapter(adapter); | |
205 | return client; | |
206 | } | |
207 | ||
da3b0ab7 MW |
208 | struct i2c_lookup { |
209 | const char *name; | |
210 | int instance; | |
211 | int n; | |
212 | }; | |
213 | ||
9ad36924 | 214 | static int __find_i2c_adap(struct device *dev, void *data) |
d1381f45 | 215 | { |
da3b0ab7 | 216 | struct i2c_lookup *lookup = data; |
d1381f45 BL |
217 | static const char *prefix = "i2c-"; |
218 | struct i2c_adapter *adapter; | |
49c68a21 | 219 | |
d1381f45 BL |
220 | if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0) |
221 | return 0; | |
222 | adapter = to_i2c_adapter(dev); | |
da3b0ab7 MW |
223 | if (strncmp(adapter->name, lookup->name, strlen(lookup->name)) == 0 && |
224 | lookup->n++ == lookup->instance) | |
225 | return 1; | |
226 | return 0; | |
d1381f45 BL |
227 | } |
228 | ||
9ad36924 | 229 | static int find_i2c_adapter_num(enum i2c_adapter_type type) |
d1381f45 BL |
230 | { |
231 | struct device *dev = NULL; | |
232 | struct i2c_adapter *adapter; | |
da3b0ab7 MW |
233 | struct i2c_lookup lookup; |
234 | ||
235 | memset(&lookup, 0, sizeof(lookup)); | |
236 | lookup.name = i2c_adapter_names[type]; | |
237 | lookup.instance = (type == I2C_ADAPTER_DESIGNWARE_1) ? 1 : 0; | |
238 | ||
d1381f45 | 239 | /* find the adapter by name */ |
da3b0ab7 | 240 | dev = bus_find_device(&i2c_bus_type, NULL, &lookup, __find_i2c_adap); |
d1381f45 | 241 | if (!dev) { |
9ad36924 BL |
242 | /* Adapters may appear later. Deferred probing will retry */ |
243 | pr_notice("%s: i2c adapter %s not found on system.\n", __func__, | |
da3b0ab7 | 244 | lookup.name); |
d1381f45 BL |
245 | return -ENODEV; |
246 | } | |
247 | adapter = to_i2c_adapter(dev); | |
248 | return adapter->nr; | |
249 | } | |
250 | ||
bcaf089c BL |
251 | /* |
252 | * Takes a list of addresses in addrs as such : | |
253 | * { addr1, ... , addrn, I2C_CLIENT_END }; | |
254 | * add_probed_i2c_device will use i2c_new_probed_device | |
255 | * and probe for devices at all of the addresses listed. | |
256 | * Returns NULL if no devices found. | |
257 | * See Documentation/i2c/instantiating-devices for more information. | |
258 | */ | |
9ad36924 | 259 | static struct i2c_client *add_probed_i2c_device( |
bcaf089c BL |
260 | const char *name, |
261 | enum i2c_adapter_type type, | |
262 | struct i2c_board_info *info, | |
263 | const unsigned short *addrs) | |
264 | { | |
265 | return __add_probed_i2c_device(name, | |
266 | find_i2c_adapter_num(type), | |
267 | info, | |
268 | addrs); | |
269 | } | |
270 | ||
d1381f45 BL |
271 | /* |
272 | * Probes for a device at a single address, the one provided by | |
273 | * info->addr. | |
274 | * Returns NULL if no device found. | |
275 | */ | |
9ad36924 | 276 | static struct i2c_client *add_i2c_device(const char *name, |
e7b28845 BL |
277 | enum i2c_adapter_type type, |
278 | struct i2c_board_info *info) | |
d1381f45 | 279 | { |
d1381f45 | 280 | return __add_probed_i2c_device(name, |
e7b28845 | 281 | find_i2c_adapter_num(type), |
d1381f45 | 282 | info, |
96cba9b0 | 283 | NULL); |
d1381f45 BL |
284 | } |
285 | ||
9ad36924 | 286 | static int setup_cyapa_tp(enum i2c_adapter_type type) |
d1381f45 | 287 | { |
9ad36924 BL |
288 | if (tp) |
289 | return 0; | |
290 | ||
ec199dd5 AD |
291 | /* add cyapa touchpad */ |
292 | tp = add_i2c_device("trackpad", type, &cyapa_device); | |
9ad36924 | 293 | return (!tp) ? -EAGAIN : 0; |
d1381f45 BL |
294 | } |
295 | ||
9ad36924 | 296 | static int setup_atmel_224s_tp(enum i2c_adapter_type type) |
8e1ad4c4 BL |
297 | { |
298 | const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR, | |
8e1ad4c4 | 299 | I2C_CLIENT_END }; |
9ad36924 BL |
300 | if (tp) |
301 | return 0; | |
8e1ad4c4 | 302 | |
ec199dd5 AD |
303 | /* add atmel mxt touchpad */ |
304 | tp = add_probed_i2c_device("trackpad", type, | |
8e1ad4c4 | 305 | &atmel_224s_tp_device, addr_list); |
9ad36924 | 306 | return (!tp) ? -EAGAIN : 0; |
8e1ad4c4 BL |
307 | } |
308 | ||
9ad36924 | 309 | static int setup_atmel_1664s_ts(enum i2c_adapter_type type) |
33a84f8a YS |
310 | { |
311 | const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR, | |
33a84f8a | 312 | I2C_CLIENT_END }; |
9ad36924 BL |
313 | if (ts) |
314 | return 0; | |
33a84f8a | 315 | |
ec199dd5 AD |
316 | /* add atmel mxt touch device */ |
317 | ts = add_probed_i2c_device("touchscreen", type, | |
33a84f8a | 318 | &atmel_1664s_device, addr_list); |
9ad36924 | 319 | return (!ts) ? -EAGAIN : 0; |
33a84f8a YS |
320 | } |
321 | ||
9ad36924 | 322 | static int setup_isl29018_als(enum i2c_adapter_type type) |
d1381f45 | 323 | { |
9ad36924 BL |
324 | if (als) |
325 | return 0; | |
326 | ||
d1381f45 | 327 | /* add isl29018 light sensor */ |
ec199dd5 | 328 | als = add_i2c_device("lightsensor", type, &isl_als_device); |
9ad36924 | 329 | return (!als) ? -EAGAIN : 0; |
d1381f45 BL |
330 | } |
331 | ||
9ad36924 | 332 | static int setup_tsl2583_als(enum i2c_adapter_type type) |
cc5c3985 | 333 | { |
9ad36924 BL |
334 | if (als) |
335 | return 0; | |
336 | ||
ec199dd5 AD |
337 | /* add tsl2583 light sensor */ |
338 | als = add_i2c_device(NULL, type, &tsl2583_als_device); | |
9ad36924 | 339 | return (!als) ? -EAGAIN : 0; |
cc5c3985 BL |
340 | } |
341 | ||
9ad36924 | 342 | static int setup_tsl2563_als(enum i2c_adapter_type type) |
8016bcbc | 343 | { |
9ad36924 BL |
344 | if (als) |
345 | return 0; | |
346 | ||
ec199dd5 AD |
347 | /* add tsl2563 light sensor */ |
348 | als = add_i2c_device(NULL, type, &tsl2563_als_device); | |
9ad36924 | 349 | return (!als) ? -EAGAIN : 0; |
8016bcbc BL |
350 | } |
351 | ||
9ad36924 | 352 | static int __init chromeos_laptop_dmi_matched(const struct dmi_system_id *id) |
aabf3f44 | 353 | { |
9ad36924 BL |
354 | cros_laptop = (void *)id->driver_data; |
355 | pr_debug("DMI Matched %s.\n", id->ident); | |
ec199dd5 | 356 | |
9ad36924 BL |
357 | /* Indicate to dmi_scan that processing is done. */ |
358 | return 1; | |
359 | } | |
360 | ||
361 | static int chromeos_laptop_probe(struct platform_device *pdev) | |
362 | { | |
363 | int i; | |
364 | int ret = 0; | |
ec199dd5 AD |
365 | |
366 | for (i = 0; i < MAX_I2C_PERIPHERALS; i++) { | |
367 | struct i2c_peripheral *i2c_dev; | |
368 | ||
369 | i2c_dev = &cros_laptop->i2c_peripherals[i]; | |
370 | ||
371 | /* No more peripherals. */ | |
372 | if (i2c_dev->add == NULL) | |
373 | break; | |
374 | ||
5502486a BL |
375 | if (i2c_dev->state == TIMEDOUT || i2c_dev->state == PROBED) |
376 | continue; | |
377 | ||
378 | /* | |
379 | * Check that the i2c adapter is present. | |
380 | * -EPROBE_DEFER if missing as the adapter may appear much | |
381 | * later. | |
382 | */ | |
383 | if (find_i2c_adapter_num(i2c_dev->type) == -ENODEV) { | |
9ad36924 | 384 | ret = -EPROBE_DEFER; |
5502486a BL |
385 | continue; |
386 | } | |
387 | ||
388 | /* Add the device. */ | |
389 | if (i2c_dev->add(i2c_dev->type) == -EAGAIN) { | |
390 | /* | |
391 | * Set -EPROBE_DEFER a limited num of times | |
392 | * if device is not successfully added. | |
393 | */ | |
394 | if (++i2c_dev->tries < MAX_I2C_DEVICE_DEFERRALS) { | |
395 | ret = -EPROBE_DEFER; | |
396 | } else { | |
397 | /* Ran out of tries. */ | |
398 | pr_notice("%s: Ran out of tries for device.\n", | |
399 | __func__); | |
400 | i2c_dev->state = TIMEDOUT; | |
401 | } | |
402 | } else { | |
403 | i2c_dev->state = PROBED; | |
404 | } | |
ec199dd5 AD |
405 | } |
406 | ||
9ad36924 | 407 | return ret; |
aabf3f44 BL |
408 | } |
409 | ||
9ad36924 | 410 | static struct chromeos_laptop samsung_series_5_550 = { |
ec199dd5 AD |
411 | .i2c_peripherals = { |
412 | /* Touchpad. */ | |
413 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
414 | /* Light Sensor. */ | |
415 | { .add = setup_isl29018_als, I2C_ADAPTER_SMBUS }, | |
416 | }, | |
417 | }; | |
418 | ||
9ad36924 | 419 | static struct chromeos_laptop samsung_series_5 = { |
ec199dd5 AD |
420 | .i2c_peripherals = { |
421 | /* Light Sensor. */ | |
422 | { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS }, | |
423 | }, | |
424 | }; | |
425 | ||
9ad36924 | 426 | static struct chromeos_laptop chromebook_pixel = { |
ec199dd5 AD |
427 | .i2c_peripherals = { |
428 | /* Touch Screen. */ | |
429 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL }, | |
430 | /* Touchpad. */ | |
431 | { .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC }, | |
432 | /* Light Sensor. */ | |
433 | { .add = setup_isl29018_als, I2C_ADAPTER_PANEL }, | |
434 | }, | |
435 | }; | |
436 | ||
5ea9567f BL |
437 | static struct chromeos_laptop hp_chromebook_14 = { |
438 | .i2c_peripherals = { | |
439 | /* Touchpad. */ | |
440 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
441 | }, | |
442 | }; | |
443 | ||
0e1e5e59 MH |
444 | static struct chromeos_laptop dell_chromebook_11 = { |
445 | .i2c_peripherals = { | |
446 | /* Touchpad. */ | |
447 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
448 | }, | |
449 | }; | |
450 | ||
963cb6fa GC |
451 | static struct chromeos_laptop toshiba_cb35 = { |
452 | .i2c_peripherals = { | |
453 | /* Touchpad. */ | |
454 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
455 | }, | |
456 | }; | |
457 | ||
9ad36924 | 458 | static struct chromeos_laptop acer_c7_chromebook = { |
ec199dd5 AD |
459 | .i2c_peripherals = { |
460 | /* Touchpad. */ | |
461 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
462 | }, | |
463 | }; | |
464 | ||
9ad36924 | 465 | static struct chromeos_laptop acer_ac700 = { |
ec199dd5 AD |
466 | .i2c_peripherals = { |
467 | /* Light Sensor. */ | |
468 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
469 | }, | |
470 | }; | |
471 | ||
da3b0ab7 MW |
472 | static struct chromeos_laptop acer_c720 = { |
473 | .i2c_peripherals = { | |
b90b3c4a MM |
474 | /* Touchscreen. */ |
475 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 }, | |
da3b0ab7 MW |
476 | /* Touchpad. */ |
477 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
478 | /* Light Sensor. */ | |
479 | { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 }, | |
480 | }, | |
481 | }; | |
482 | ||
9ad36924 | 483 | static struct chromeos_laptop hp_pavilion_14_chromebook = { |
ec199dd5 AD |
484 | .i2c_peripherals = { |
485 | /* Touchpad. */ | |
486 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
487 | }, | |
488 | }; | |
489 | ||
9ad36924 | 490 | static struct chromeos_laptop cr48 = { |
ec199dd5 AD |
491 | .i2c_peripherals = { |
492 | /* Light Sensor. */ | |
493 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
494 | }, | |
495 | }; | |
496 | ||
497 | #define _CBDD(board_) \ | |
9ad36924 | 498 | .callback = chromeos_laptop_dmi_matched, \ |
ec199dd5 AD |
499 | .driver_data = (void *)&board_ |
500 | ||
cdddd23f | 501 | static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = { |
d1381f45 | 502 | { |
ec199dd5 | 503 | .ident = "Samsung Series 5 550", |
d1381f45 BL |
504 | .matches = { |
505 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"), | |
506 | DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"), | |
507 | }, | |
ec199dd5 | 508 | _CBDD(samsung_series_5_550), |
8e1ad4c4 | 509 | }, |
d1381f45 | 510 | { |
ec199dd5 | 511 | .ident = "Samsung Series 5", |
d1381f45 | 512 | .matches = { |
ec199dd5 | 513 | DMI_MATCH(DMI_PRODUCT_NAME, "Alex"), |
d1381f45 | 514 | }, |
ec199dd5 | 515 | _CBDD(samsung_series_5), |
d1381f45 | 516 | }, |
cc5c3985 | 517 | { |
ec199dd5 | 518 | .ident = "Chromebook Pixel", |
cc5c3985 BL |
519 | .matches = { |
520 | DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), | |
521 | DMI_MATCH(DMI_PRODUCT_NAME, "Link"), | |
522 | }, | |
ec199dd5 | 523 | _CBDD(chromebook_pixel), |
cc5c3985 | 524 | }, |
0e1e5e59 MH |
525 | { |
526 | .ident = "Wolf", | |
527 | .matches = { | |
528 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
529 | DMI_MATCH(DMI_PRODUCT_NAME, "Wolf"), | |
530 | }, | |
531 | _CBDD(dell_chromebook_11), | |
532 | }, | |
5ea9567f BL |
533 | { |
534 | .ident = "HP Chromebook 14", | |
535 | .matches = { | |
536 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
537 | DMI_MATCH(DMI_PRODUCT_NAME, "Falco"), | |
538 | }, | |
539 | _CBDD(hp_chromebook_14), | |
540 | }, | |
963cb6fa GC |
541 | { |
542 | .ident = "Toshiba CB35", | |
543 | .matches = { | |
544 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
545 | DMI_MATCH(DMI_PRODUCT_NAME, "Leon"), | |
546 | }, | |
547 | _CBDD(toshiba_cb35), | |
548 | }, | |
261f171f | 549 | { |
ec199dd5 | 550 | .ident = "Acer C7 Chromebook", |
261f171f BL |
551 | .matches = { |
552 | DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"), | |
553 | }, | |
ec199dd5 | 554 | _CBDD(acer_c7_chromebook), |
e65a624b BL |
555 | }, |
556 | { | |
ec199dd5 | 557 | .ident = "Acer AC700", |
e65a624b | 558 | .matches = { |
ec199dd5 | 559 | DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), |
e65a624b | 560 | }, |
ec199dd5 | 561 | _CBDD(acer_ac700), |
261f171f | 562 | }, |
da3b0ab7 MW |
563 | { |
564 | .ident = "Acer C720", | |
565 | .matches = { | |
566 | DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"), | |
567 | }, | |
568 | _CBDD(acer_c720), | |
569 | }, | |
8016bcbc | 570 | { |
ec199dd5 | 571 | .ident = "HP Pavilion 14 Chromebook", |
8016bcbc | 572 | .matches = { |
ec199dd5 | 573 | DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"), |
8016bcbc | 574 | }, |
ec199dd5 | 575 | _CBDD(hp_pavilion_14_chromebook), |
8016bcbc | 576 | }, |
aabf3f44 | 577 | { |
ec199dd5 | 578 | .ident = "Cr-48", |
aabf3f44 BL |
579 | .matches = { |
580 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
581 | }, | |
ec199dd5 | 582 | _CBDD(cr48), |
aabf3f44 | 583 | }, |
d1381f45 BL |
584 | { } |
585 | }; | |
586 | MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table); | |
587 | ||
9ad36924 BL |
588 | static struct platform_device *cros_platform_device; |
589 | ||
590 | static struct platform_driver cros_platform_driver = { | |
591 | .driver = { | |
592 | .name = "chromeos_laptop", | |
9ad36924 BL |
593 | }, |
594 | .probe = chromeos_laptop_probe, | |
595 | }; | |
596 | ||
d1381f45 BL |
597 | static int __init chromeos_laptop_init(void) |
598 | { | |
9ad36924 | 599 | int ret; |
49c68a21 | 600 | |
d1381f45 BL |
601 | if (!dmi_check_system(chromeos_laptop_dmi_table)) { |
602 | pr_debug("%s unsupported system.\n", __func__); | |
603 | return -ENODEV; | |
604 | } | |
9ad36924 BL |
605 | |
606 | ret = platform_driver_register(&cros_platform_driver); | |
607 | if (ret) | |
608 | return ret; | |
609 | ||
610 | cros_platform_device = platform_device_alloc("chromeos_laptop", -1); | |
611 | if (!cros_platform_device) { | |
612 | ret = -ENOMEM; | |
613 | goto fail_platform_device1; | |
614 | } | |
615 | ||
616 | ret = platform_device_add(cros_platform_device); | |
617 | if (ret) | |
618 | goto fail_platform_device2; | |
619 | ||
d1381f45 | 620 | return 0; |
9ad36924 BL |
621 | |
622 | fail_platform_device2: | |
623 | platform_device_put(cros_platform_device); | |
624 | fail_platform_device1: | |
625 | platform_driver_unregister(&cros_platform_driver); | |
626 | return ret; | |
d1381f45 BL |
627 | } |
628 | ||
629 | static void __exit chromeos_laptop_exit(void) | |
630 | { | |
631 | if (als) | |
632 | i2c_unregister_device(als); | |
633 | if (tp) | |
634 | i2c_unregister_device(tp); | |
33a84f8a YS |
635 | if (ts) |
636 | i2c_unregister_device(ts); | |
2b8454a7 WY |
637 | |
638 | platform_device_unregister(cros_platform_device); | |
639 | platform_driver_unregister(&cros_platform_driver); | |
d1381f45 BL |
640 | } |
641 | ||
642 | module_init(chromeos_laptop_init); | |
643 | module_exit(chromeos_laptop_exit); | |
644 | ||
645 | MODULE_DESCRIPTION("Chrome OS Laptop driver"); | |
646 | MODULE_AUTHOR("Benson Leung <bleung@chromium.org>"); | |
647 | MODULE_LICENSE("GPL"); |