1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Touchscreen driver DMI based configuration code
4  *
5  * Copyright (c) 2017 Red Hat Inc.
6  *
7  * Red Hat authors:
8  * Hans de Goede <hdegoede@redhat.com>
9  */
10 
11 #include <linux/acpi.h>
12 #include <linux/device.h>
13 #include <linux/dmi.h>
14 #include <linux/efi_embedded_fw.h>
15 #include <linux/i2c.h>
16 #include <linux/notifier.h>
17 #include <linux/property.h>
18 #include <linux/string.h>
19 
20 struct ts_dmi_data {
21 	/* The EFI embedded-fw code expects this to be the first member! */
22 	struct efi_embedded_fw_desc embedded_fw;
23 	const char *acpi_name;
24 	const struct property_entry *properties;
25 };
26 
27 /* NOTE: Please keep all entries sorted alphabetically */
28 
29 static const struct property_entry chuwi_hi8_props[] = {
30 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1665),
31 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
32 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
33 	PROPERTY_ENTRY_BOOL("silead,home-button"),
34 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi8.fw"),
35 	{ }
36 };
37 
38 static const struct ts_dmi_data chuwi_hi8_data = {
39 	.acpi_name      = "MSSL0001:00",
40 	.properties     = chuwi_hi8_props,
41 };
42 
43 static const struct property_entry chuwi_hi8_air_props[] = {
44 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
45 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
46 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
47 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-chuwi-hi8-air.fw"),
48 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
49 	{ }
50 };
51 
52 static const struct ts_dmi_data chuwi_hi8_air_data = {
53 	.acpi_name	= "MSSL1680:00",
54 	.properties	= chuwi_hi8_air_props,
55 };
56 
57 static const struct property_entry chuwi_hi8_pro_props[] = {
58 	PROPERTY_ENTRY_U32("touchscreen-min-x", 6),
59 	PROPERTY_ENTRY_U32("touchscreen-min-y", 3),
60 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
61 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
62 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
63 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-chuwi-hi8-pro.fw"),
64 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
65 	PROPERTY_ENTRY_BOOL("silead,home-button"),
66 	{ }
67 };
68 
69 static const struct ts_dmi_data chuwi_hi8_pro_data = {
70 	.embedded_fw = {
71 		.name	= "silead/gsl3680-chuwi-hi8-pro.fw",
72 		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
73 		.length	= 39864,
74 		.sha256	= { 0xc0, 0x88, 0xc5, 0xef, 0xd1, 0x70, 0x77, 0x59,
75 			    0x4e, 0xe9, 0xc4, 0xd8, 0x2e, 0xcd, 0xbf, 0x95,
76 			    0x32, 0xd9, 0x03, 0x28, 0x0d, 0x48, 0x9f, 0x92,
77 			    0x35, 0x37, 0xf6, 0x8b, 0x2a, 0xe4, 0x73, 0xff },
78 	},
79 	.acpi_name	= "MSSL1680:00",
80 	.properties	= chuwi_hi8_pro_props,
81 };
82 
83 static const struct property_entry chuwi_hi10_air_props[] = {
84 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1981),
85 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1271),
86 	PROPERTY_ENTRY_U32("touchscreen-min-x", 99),
87 	PROPERTY_ENTRY_U32("touchscreen-min-y", 9),
88 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
89 	PROPERTY_ENTRY_U32("touchscreen-fuzz-x", 5),
90 	PROPERTY_ENTRY_U32("touchscreen-fuzz-y", 4),
91 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi10-air.fw"),
92 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
93 	PROPERTY_ENTRY_BOOL("silead,home-button"),
94 	{ }
95 };
96 
97 static const struct ts_dmi_data chuwi_hi10_air_data = {
98 	.acpi_name	= "MSSL1680:00",
99 	.properties	= chuwi_hi10_air_props,
100 };
101 
102 static const struct property_entry chuwi_hi10_plus_props[] = {
103 	PROPERTY_ENTRY_U32("touchscreen-min-x", 0),
104 	PROPERTY_ENTRY_U32("touchscreen-min-y", 5),
105 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1914),
106 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1283),
107 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi10plus.fw"),
108 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
109 	PROPERTY_ENTRY_BOOL("silead,home-button"),
110 	{ }
111 };
112 
113 static const struct ts_dmi_data chuwi_hi10_plus_data = {
114 	.acpi_name      = "MSSL0017:00",
115 	.properties     = chuwi_hi10_plus_props,
116 };
117 
118 static const struct property_entry chuwi_vi8_props[] = {
119 	PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
120 	PROPERTY_ENTRY_U32("touchscreen-min-y", 6),
121 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1724),
122 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
123 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
124 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-chuwi-vi8.fw"),
125 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
126 	PROPERTY_ENTRY_BOOL("silead,home-button"),
127 	{ }
128 };
129 
130 static const struct ts_dmi_data chuwi_vi8_data = {
131 	.acpi_name      = "MSSL1680:00",
132 	.properties     = chuwi_vi8_props,
133 };
134 
135 static const struct ts_dmi_data chuwi_vi8_plus_data = {
136 	.embedded_fw = {
137 		.name	= "chipone/icn8505-HAMP0002.fw",
138 		.prefix = { 0xb0, 0x07, 0x00, 0x00, 0xe4, 0x07, 0x00, 0x00 },
139 		.length	= 35012,
140 		.sha256	= { 0x93, 0xe5, 0x49, 0xe0, 0xb6, 0xa2, 0xb4, 0xb3,
141 			    0x88, 0x96, 0x34, 0x97, 0x5e, 0xa8, 0x13, 0x78,
142 			    0x72, 0x98, 0xb8, 0x29, 0xeb, 0x5c, 0xa7, 0xf1,
143 			    0x25, 0x13, 0x43, 0xf4, 0x30, 0x7c, 0xfc, 0x7c },
144 	},
145 };
146 
147 static const struct property_entry chuwi_vi10_props[] = {
148 	PROPERTY_ENTRY_U32("touchscreen-min-x", 0),
149 	PROPERTY_ENTRY_U32("touchscreen-min-y", 4),
150 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1858),
151 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
152 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-chuwi-vi10.fw"),
153 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
154 	PROPERTY_ENTRY_BOOL("silead,home-button"),
155 	{ }
156 };
157 
158 static const struct ts_dmi_data chuwi_vi10_data = {
159 	.acpi_name      = "MSSL0002:00",
160 	.properties     = chuwi_vi10_props,
161 };
162 
163 static const struct property_entry chuwi_surbook_mini_props[] = {
164 	PROPERTY_ENTRY_U32("touchscreen-min-x", 88),
165 	PROPERTY_ENTRY_U32("touchscreen-min-y", 13),
166 	PROPERTY_ENTRY_U32("touchscreen-size-x", 2040),
167 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1524),
168 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-surbook-mini.fw"),
169 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
170 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
171 	{ }
172 };
173 
174 static const struct ts_dmi_data chuwi_surbook_mini_data = {
175 	.acpi_name      = "MSSL1680:00",
176 	.properties     = chuwi_surbook_mini_props,
177 };
178 
179 static const struct property_entry connect_tablet9_props[] = {
180 	PROPERTY_ENTRY_U32("touchscreen-min-x", 9),
181 	PROPERTY_ENTRY_U32("touchscreen-min-y", 10),
182 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1664),
183 	PROPERTY_ENTRY_U32("touchscreen-size-y", 880),
184 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
185 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
186 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-connect-tablet9.fw"),
187 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
188 	{ }
189 };
190 
191 static const struct ts_dmi_data connect_tablet9_data = {
192 	.acpi_name      = "MSSL1680:00",
193 	.properties     = connect_tablet9_props,
194 };
195 
196 static const struct property_entry cube_iwork8_air_props[] = {
197 	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
198 	PROPERTY_ENTRY_U32("touchscreen-min-y", 3),
199 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1664),
200 	PROPERTY_ENTRY_U32("touchscreen-size-y", 896),
201 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
202 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-cube-iwork8-air.fw"),
203 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
204 	{ }
205 };
206 
207 static const struct ts_dmi_data cube_iwork8_air_data = {
208 	.embedded_fw = {
209 		.name	= "silead/gsl3670-cube-iwork8-air.fw",
210 		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
211 		.length	= 38808,
212 		.sha256	= { 0xff, 0x62, 0x2d, 0xd1, 0x8a, 0x78, 0x04, 0x7b,
213 			    0x33, 0x06, 0xb0, 0x4f, 0x7f, 0x02, 0x08, 0x9c,
214 			    0x96, 0xd4, 0x9f, 0x04, 0xe1, 0x47, 0x25, 0x25,
215 			    0x60, 0x77, 0x41, 0x33, 0xeb, 0x12, 0x82, 0xfc },
216 	},
217 	.acpi_name	= "MSSL1680:00",
218 	.properties	= cube_iwork8_air_props,
219 };
220 
221 static const struct property_entry cube_knote_i1101_props[] = {
222 	PROPERTY_ENTRY_U32("touchscreen-min-x", 20),
223 	PROPERTY_ENTRY_U32("touchscreen-min-y",  22),
224 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1961),
225 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1513),
226 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-cube-knote-i1101.fw"),
227 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
228 	PROPERTY_ENTRY_BOOL("silead,home-button"),
229 	{ }
230 };
231 
232 static const struct ts_dmi_data cube_knote_i1101_data = {
233 	.acpi_name	= "MSSL1680:00",
234 	.properties	= cube_knote_i1101_props,
235 };
236 
237 static const struct property_entry dexp_ursus_7w_props[] = {
238 	PROPERTY_ENTRY_U32("touchscreen-size-x", 890),
239 	PROPERTY_ENTRY_U32("touchscreen-size-y", 630),
240 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1686-dexp-ursus-7w.fw"),
241 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
242 	PROPERTY_ENTRY_BOOL("silead,home-button"),
243 	{ }
244 };
245 
246 static const struct ts_dmi_data dexp_ursus_7w_data = {
247 	.acpi_name	= "MSSL1680:00",
248 	.properties	= dexp_ursus_7w_props,
249 };
250 
251 static const struct property_entry digma_citi_e200_props[] = {
252 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
253 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
254 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
255 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1686-digma_citi_e200.fw"),
256 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
257 	PROPERTY_ENTRY_BOOL("silead,home-button"),
258 	{ }
259 };
260 
261 static const struct ts_dmi_data digma_citi_e200_data = {
262 	.acpi_name	= "MSSL1680:00",
263 	.properties	= digma_citi_e200_props,
264 };
265 
266 static const struct property_entry estar_beauty_hd_props[] = {
267 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
268 	{ }
269 };
270 
271 static const struct ts_dmi_data estar_beauty_hd_data = {
272 	.acpi_name	= "GDIX1001:00",
273 	.properties	= estar_beauty_hd_props,
274 };
275 
276 static const struct property_entry gp_electronic_t701_props[] = {
277 	PROPERTY_ENTRY_U32("touchscreen-size-x", 960),
278 	PROPERTY_ENTRY_U32("touchscreen-size-y", 640),
279 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
280 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
281 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-gp-electronic-t701.fw"),
282 	{ }
283 };
284 
285 static const struct ts_dmi_data gp_electronic_t701_data = {
286 	.acpi_name	= "MSSL1680:00",
287 	.properties	= gp_electronic_t701_props,
288 };
289 
290 static const struct property_entry irbis_tw90_props[] = {
291 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1720),
292 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1138),
293 	PROPERTY_ENTRY_U32("touchscreen-min-x", 8),
294 	PROPERTY_ENTRY_U32("touchscreen-min-y", 14),
295 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
296 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
297 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-irbis_tw90.fw"),
298 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
299 	PROPERTY_ENTRY_BOOL("silead,home-button"),
300 	{ }
301 };
302 
303 static const struct ts_dmi_data irbis_tw90_data = {
304 	.acpi_name	= "MSSL1680:00",
305 	.properties	= irbis_tw90_props,
306 };
307 
308 static const struct property_entry irbis_tw118_props[] = {
309 	PROPERTY_ENTRY_U32("touchscreen-min-x", 20),
310 	PROPERTY_ENTRY_U32("touchscreen-min-y", 30),
311 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1960),
312 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1510),
313 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-irbis-tw118.fw"),
314 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
315 	{ }
316 };
317 
318 static const struct ts_dmi_data irbis_tw118_data = {
319 	.acpi_name	= "MSSL1680:00",
320 	.properties	= irbis_tw118_props,
321 };
322 
323 static const struct property_entry itworks_tw891_props[] = {
324 	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
325 	PROPERTY_ENTRY_U32("touchscreen-min-y", 5),
326 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1600),
327 	PROPERTY_ENTRY_U32("touchscreen-size-y", 896),
328 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
329 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
330 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-itworks-tw891.fw"),
331 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
332 	{ }
333 };
334 
335 static const struct ts_dmi_data itworks_tw891_data = {
336 	.acpi_name	= "MSSL1680:00",
337 	.properties	= itworks_tw891_props,
338 };
339 
340 static const struct property_entry jumper_ezpad_6_pro_props[] = {
341 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
342 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
343 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-jumper-ezpad-6-pro.fw"),
344 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
345 	PROPERTY_ENTRY_BOOL("silead,home-button"),
346 	{ }
347 };
348 
349 static const struct ts_dmi_data jumper_ezpad_6_pro_data = {
350 	.acpi_name	= "MSSL1680:00",
351 	.properties	= jumper_ezpad_6_pro_props,
352 };
353 
354 static const struct property_entry jumper_ezpad_6_pro_b_props[] = {
355 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
356 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
357 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-jumper-ezpad-6-pro-b.fw"),
358 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
359 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
360 	PROPERTY_ENTRY_BOOL("silead,home-button"),
361 	{ }
362 };
363 
364 static const struct ts_dmi_data jumper_ezpad_6_pro_b_data = {
365 	.acpi_name      = "MSSL1680:00",
366 	.properties     = jumper_ezpad_6_pro_b_props,
367 };
368 
369 static const struct property_entry jumper_ezpad_6_m4_props[] = {
370 	PROPERTY_ENTRY_U32("touchscreen-min-x", 35),
371 	PROPERTY_ENTRY_U32("touchscreen-min-y", 15),
372 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1950),
373 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1525),
374 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-jumper-ezpad-6-m4.fw"),
375 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
376 	PROPERTY_ENTRY_BOOL("silead,home-button"),
377 	{ }
378 };
379 
380 static const struct ts_dmi_data jumper_ezpad_6_m4_data = {
381 	.acpi_name	= "MSSL1680:00",
382 	.properties	= jumper_ezpad_6_m4_props,
383 };
384 
385 static const struct property_entry jumper_ezpad_7_props[] = {
386 	PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
387 	PROPERTY_ENTRY_U32("touchscreen-min-y", 10),
388 	PROPERTY_ENTRY_U32("touchscreen-size-x", 2044),
389 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1526),
390 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
391 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-jumper-ezpad-7.fw"),
392 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
393 	PROPERTY_ENTRY_BOOL("silead,stuck-controller-bug"),
394 	{ }
395 };
396 
397 static const struct ts_dmi_data jumper_ezpad_7_data = {
398 	.acpi_name	= "MSSL1680:00",
399 	.properties	= jumper_ezpad_7_props,
400 };
401 
402 static const struct property_entry jumper_ezpad_mini3_props[] = {
403 	PROPERTY_ENTRY_U32("touchscreen-min-x", 23),
404 	PROPERTY_ENTRY_U32("touchscreen-min-y", 16),
405 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1700),
406 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1138),
407 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
408 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-jumper-ezpad-mini3.fw"),
409 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
410 	{ }
411 };
412 
413 static const struct ts_dmi_data jumper_ezpad_mini3_data = {
414 	.acpi_name	= "MSSL1680:00",
415 	.properties	= jumper_ezpad_mini3_props,
416 };
417 
418 static const struct property_entry mpman_converter9_props[] = {
419 	PROPERTY_ENTRY_U32("touchscreen-min-x", 8),
420 	PROPERTY_ENTRY_U32("touchscreen-min-y", 8),
421 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1664),
422 	PROPERTY_ENTRY_U32("touchscreen-size-y", 880),
423 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
424 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
425 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-mpman-converter9.fw"),
426 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
427 	{ }
428 };
429 
430 static const struct ts_dmi_data mpman_converter9_data = {
431 	.acpi_name	= "MSSL1680:00",
432 	.properties	= mpman_converter9_props,
433 };
434 
435 static const struct property_entry mpman_mpwin895cl_props[] = {
436 	PROPERTY_ENTRY_U32("touchscreen-min-x", 3),
437 	PROPERTY_ENTRY_U32("touchscreen-min-y", 9),
438 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
439 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1150),
440 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
441 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-mpman-mpwin895cl.fw"),
442 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
443 	PROPERTY_ENTRY_BOOL("silead,home-button"),
444 	{ }
445 };
446 
447 static const struct ts_dmi_data mpman_mpwin895cl_data = {
448 	.acpi_name	= "MSSL1680:00",
449 	.properties	= mpman_mpwin895cl_props,
450 };
451 
452 static const struct property_entry myria_my8307_props[] = {
453 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1720),
454 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
455 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
456 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
457 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
458 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-myria-my8307.fw"),
459 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
460 	PROPERTY_ENTRY_BOOL("silead,home-button"),
461 	{ }
462 };
463 
464 static const struct ts_dmi_data myria_my8307_data = {
465 	.acpi_name	= "MSSL1680:00",
466 	.properties	= myria_my8307_props,
467 };
468 
469 static const struct property_entry onda_obook_20_plus_props[] = {
470 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
471 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
472 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
473 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
474 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
475 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-onda-obook-20-plus.fw"),
476 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
477 	PROPERTY_ENTRY_BOOL("silead,home-button"),
478 	{ }
479 };
480 
481 static const struct ts_dmi_data onda_obook_20_plus_data = {
482 	.acpi_name	= "MSSL1680:00",
483 	.properties	= onda_obook_20_plus_props,
484 };
485 
486 static const struct property_entry onda_v80_plus_v3_props[] = {
487 	PROPERTY_ENTRY_U32("touchscreen-min-x", 22),
488 	PROPERTY_ENTRY_U32("touchscreen-min-y", 15),
489 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1698),
490 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
491 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
492 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-onda-v80-plus-v3.fw"),
493 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
494 	PROPERTY_ENTRY_BOOL("silead,home-button"),
495 	{ }
496 };
497 
498 static const struct ts_dmi_data onda_v80_plus_v3_data = {
499 	.embedded_fw = {
500 		.name	= "silead/gsl3676-onda-v80-plus-v3.fw",
501 		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
502 		.length	= 37224,
503 		.sha256	= { 0x8f, 0xbd, 0x8f, 0x0c, 0x6b, 0xba, 0x5b, 0xf5,
504 			    0xa3, 0xc7, 0xa3, 0xc0, 0x4f, 0xcd, 0xdf, 0x32,
505 			    0xcc, 0xe4, 0x70, 0xd6, 0x46, 0x9c, 0xd7, 0xa7,
506 			    0x4b, 0x82, 0x3f, 0xab, 0xc7, 0x90, 0xea, 0x23 },
507 	},
508 	.acpi_name	= "MSSL1680:00",
509 	.properties	= onda_v80_plus_v3_props,
510 };
511 
512 static const struct property_entry onda_v820w_32g_props[] = {
513 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1665),
514 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
515 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
516 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-onda-v820w-32g.fw"),
517 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
518 	PROPERTY_ENTRY_BOOL("silead,home-button"),
519 	{ }
520 };
521 
522 static const struct ts_dmi_data onda_v820w_32g_data = {
523 	.acpi_name	= "MSSL1680:00",
524 	.properties	= onda_v820w_32g_props,
525 };
526 
527 static const struct property_entry onda_v891_v5_props[] = {
528 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1715),
529 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
530 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
531 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
532 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
533 	PROPERTY_ENTRY_STRING("firmware-name",
534 			      "gsl3676-onda-v891-v5.fw"),
535 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
536 	PROPERTY_ENTRY_BOOL("silead,home-button"),
537 	{ }
538 };
539 
540 static const struct ts_dmi_data onda_v891_v5_data = {
541 	.acpi_name	= "MSSL1680:00",
542 	.properties	= onda_v891_v5_props,
543 };
544 
545 static const struct property_entry onda_v891w_v1_props[] = {
546 	PROPERTY_ENTRY_U32("touchscreen-min-x", 46),
547 	PROPERTY_ENTRY_U32("touchscreen-min-y",  8),
548 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1676),
549 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1130),
550 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-onda-v891w-v1.fw"),
551 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
552 	PROPERTY_ENTRY_BOOL("silead,home-button"),
553 	{ }
554 };
555 
556 static const struct ts_dmi_data onda_v891w_v1_data = {
557 	.acpi_name	= "MSSL1680:00",
558 	.properties	= onda_v891w_v1_props,
559 };
560 
561 static const struct property_entry onda_v891w_v3_props[] = {
562 	PROPERTY_ENTRY_U32("touchscreen-min-x", 35),
563 	PROPERTY_ENTRY_U32("touchscreen-min-y", 15),
564 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1625),
565 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1135),
566 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
567 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-onda-v891w-v3.fw"),
568 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
569 	PROPERTY_ENTRY_BOOL("silead,home-button"),
570 	{ }
571 };
572 
573 static const struct ts_dmi_data onda_v891w_v3_data = {
574 	.acpi_name	= "MSSL1680:00",
575 	.properties	= onda_v891w_v3_props,
576 };
577 
578 static const struct property_entry pipo_w2s_props[] = {
579 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1660),
580 	PROPERTY_ENTRY_U32("touchscreen-size-y", 880),
581 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
582 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
583 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-pipo-w2s.fw"),
584 	{ }
585 };
586 
587 static const struct ts_dmi_data pipo_w2s_data = {
588 	.embedded_fw = {
589 		.name	= "silead/gsl1680-pipo-w2s.fw",
590 		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
591 		.length	= 39072,
592 		.sha256	= { 0xd0, 0x58, 0xc4, 0x7d, 0x55, 0x2d, 0x62, 0x18,
593 			    0xd1, 0x6a, 0x71, 0x73, 0x0b, 0x3f, 0xbe, 0x60,
594 			    0xbb, 0x45, 0x8c, 0x52, 0x27, 0xb7, 0x18, 0xf4,
595 			    0x31, 0x00, 0x6a, 0x49, 0x76, 0xd8, 0x7c, 0xd3 },
596 	},
597 	.acpi_name	= "MSSL1680:00",
598 	.properties	= pipo_w2s_props,
599 };
600 
601 static const struct property_entry pipo_w11_props[] = {
602 	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
603 	PROPERTY_ENTRY_U32("touchscreen-min-y", 15),
604 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1984),
605 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1532),
606 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-pipo-w11.fw"),
607 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
608 	PROPERTY_ENTRY_BOOL("silead,home-button"),
609 	{ }
610 };
611 
612 static const struct ts_dmi_data pipo_w11_data = {
613 	.acpi_name	= "MSSL1680:00",
614 	.properties	= pipo_w11_props,
615 };
616 
617 static const struct property_entry pov_mobii_wintab_p800w_v20_props[] = {
618 	PROPERTY_ENTRY_U32("touchscreen-min-x", 32),
619 	PROPERTY_ENTRY_U32("touchscreen-min-y", 16),
620 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1692),
621 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1146),
622 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
623 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-pov-mobii-wintab-p800w-v20.fw"),
624 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
625 	PROPERTY_ENTRY_BOOL("silead,home-button"),
626 	{ }
627 };
628 
629 static const struct ts_dmi_data pov_mobii_wintab_p800w_v20_data = {
630 	.acpi_name	= "MSSL1680:00",
631 	.properties	= pov_mobii_wintab_p800w_v20_props,
632 };
633 
634 static const struct property_entry pov_mobii_wintab_p800w_v21_props[] = {
635 	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
636 	PROPERTY_ENTRY_U32("touchscreen-min-y", 8),
637 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1794),
638 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
639 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
640 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-pov-mobii-wintab-p800w.fw"),
641 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
642 	PROPERTY_ENTRY_BOOL("silead,home-button"),
643 	{ }
644 };
645 
646 static const struct ts_dmi_data pov_mobii_wintab_p800w_v21_data = {
647 	.acpi_name	= "MSSL1680:00",
648 	.properties	= pov_mobii_wintab_p800w_v21_props,
649 };
650 
651 static const struct property_entry pov_mobii_wintab_p1006w_v10_props[] = {
652 	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
653 	PROPERTY_ENTRY_U32("touchscreen-min-y", 3),
654 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1984),
655 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1520),
656 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
657 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-pov-mobii-wintab-p1006w-v10.fw"),
658 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
659 	PROPERTY_ENTRY_BOOL("silead,home-button"),
660 	{ }
661 };
662 
663 static const struct ts_dmi_data pov_mobii_wintab_p1006w_v10_data = {
664 	.acpi_name	= "MSSL1680:00",
665 	.properties	= pov_mobii_wintab_p1006w_v10_props,
666 };
667 
668 static const struct property_entry predia_basic_props[] = {
669 	PROPERTY_ENTRY_U32("touchscreen-min-x", 3),
670 	PROPERTY_ENTRY_U32("touchscreen-min-y", 10),
671 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
672 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1144),
673 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
674 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-predia-basic.fw"),
675 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
676 	PROPERTY_ENTRY_BOOL("silead,home-button"),
677 	{ }
678 };
679 
680 static const struct ts_dmi_data predia_basic_data = {
681 	.acpi_name	= "MSSL1680:00",
682 	.properties	= predia_basic_props,
683 };
684 
685 static const struct property_entry schneider_sct101ctm_props[] = {
686 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1715),
687 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
688 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
689 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
690 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
691 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-schneider-sct101ctm.fw"),
692 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
693 	PROPERTY_ENTRY_BOOL("silead,home-button"),
694 	{ }
695 };
696 
697 static const struct ts_dmi_data schneider_sct101ctm_data = {
698 	.acpi_name	= "MSSL1680:00",
699 	.properties	= schneider_sct101ctm_props,
700 };
701 
702 static const struct property_entry techbite_arc_11_6_props[] = {
703 	PROPERTY_ENTRY_U32("touchscreen-min-x", 5),
704 	PROPERTY_ENTRY_U32("touchscreen-min-y", 7),
705 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1981),
706 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1270),
707 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
708 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-techbite-arc-11-6.fw"),
709 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
710 	{ }
711 };
712 
713 static const struct ts_dmi_data techbite_arc_11_6_data = {
714 	.acpi_name	= "MSSL1680:00",
715 	.properties	= techbite_arc_11_6_props,
716 };
717 
718 static const struct property_entry teclast_x3_plus_props[] = {
719 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
720 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
721 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-teclast-x3-plus.fw"),
722 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
723 	PROPERTY_ENTRY_BOOL("silead,home-button"),
724 	{ }
725 };
726 
727 static const struct ts_dmi_data teclast_x3_plus_data = {
728 	.acpi_name	= "MSSL1680:00",
729 	.properties	= teclast_x3_plus_props,
730 };
731 
732 static const struct property_entry teclast_x98plus2_props[] = {
733 	PROPERTY_ENTRY_U32("touchscreen-size-x", 2048),
734 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
735 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
736 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
737 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1686-teclast_x98plus2.fw"),
738 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
739 	{ }
740 };
741 
742 static const struct ts_dmi_data teclast_x98plus2_data = {
743 	.acpi_name	= "MSSL1680:00",
744 	.properties	= teclast_x98plus2_props,
745 };
746 
747 static const struct property_entry trekstor_primebook_c11_props[] = {
748 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1970),
749 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1530),
750 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
751 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-trekstor-primebook-c11.fw"),
752 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
753 	PROPERTY_ENTRY_BOOL("silead,home-button"),
754 	{ }
755 };
756 
757 static const struct ts_dmi_data trekstor_primebook_c11_data = {
758 	.acpi_name	= "MSSL1680:00",
759 	.properties	= trekstor_primebook_c11_props,
760 };
761 
762 static const struct property_entry trekstor_primebook_c13_props[] = {
763 	PROPERTY_ENTRY_U32("touchscreen-size-x", 2624),
764 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1920),
765 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-trekstor-primebook-c13.fw"),
766 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
767 	PROPERTY_ENTRY_BOOL("silead,home-button"),
768 	{ }
769 };
770 
771 static const struct ts_dmi_data trekstor_primebook_c13_data = {
772 	.acpi_name	= "MSSL1680:00",
773 	.properties	= trekstor_primebook_c13_props,
774 };
775 
776 static const struct property_entry trekstor_primetab_t13b_props[] = {
777 	PROPERTY_ENTRY_U32("touchscreen-size-x", 2500),
778 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1900),
779 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-trekstor-primetab-t13b.fw"),
780 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
781 	PROPERTY_ENTRY_BOOL("silead,home-button"),
782 	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
783 	{ }
784 };
785 
786 static const struct ts_dmi_data trekstor_primetab_t13b_data = {
787 	.acpi_name  = "MSSL1680:00",
788 	.properties = trekstor_primetab_t13b_props,
789 };
790 
791 static const struct property_entry trekstor_surftab_twin_10_1_props[] = {
792 	PROPERTY_ENTRY_U32("touchscreen-min-x", 20),
793 	PROPERTY_ENTRY_U32("touchscreen-min-y", 0),
794 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1890),
795 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
796 	PROPERTY_ENTRY_U32("touchscreen-inverted-y", 1),
797 	PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-surftab-twin-10-1-st10432-8.fw"),
798 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
799 	PROPERTY_ENTRY_BOOL("silead,home-button"),
800 	{ }
801 };
802 
803 static const struct ts_dmi_data trekstor_surftab_twin_10_1_data = {
804 	.acpi_name	= "MSSL1680:00",
805 	.properties	= trekstor_surftab_twin_10_1_props,
806 };
807 
808 static const struct property_entry trekstor_surftab_wintron70_props[] = {
809 	PROPERTY_ENTRY_U32("touchscreen-min-x", 12),
810 	PROPERTY_ENTRY_U32("touchscreen-min-y", 8),
811 	PROPERTY_ENTRY_U32("touchscreen-size-x", 884),
812 	PROPERTY_ENTRY_U32("touchscreen-size-y", 632),
813 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1686-surftab-wintron70-st70416-6.fw"),
814 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
815 	PROPERTY_ENTRY_BOOL("silead,home-button"),
816 	{ }
817 };
818 
819 static const struct ts_dmi_data trekstor_surftab_wintron70_data = {
820 	.acpi_name	= "MSSL1680:00",
821 	.properties	= trekstor_surftab_wintron70_props,
822 };
823 
824 static const struct property_entry vinga_twizzle_j116_props[] = {
825 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1920),
826 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
827 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-vinga-twizzle_j116.fw"),
828 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
829 	PROPERTY_ENTRY_BOOL("silead,home-button"),
830 	{ }
831 };
832 
833 static const struct ts_dmi_data vinga_twizzle_j116_data = {
834 	.acpi_name	= "MSSL1680:00",
835 	.properties	= vinga_twizzle_j116_props,
836 };
837 
838 /* NOTE: Please keep this table sorted alphabetically */
839 const struct dmi_system_id touchscreen_dmi_table[] = {
840 	{
841 		/* Chuwi Hi8 */
842 		.driver_data = (void *)&chuwi_hi8_data,
843 		.matches = {
844 			DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
845 			DMI_MATCH(DMI_PRODUCT_NAME, "S806"),
846 		},
847 	},
848 	{
849 		/* Chuwi Hi8 (H1D_S806_206) */
850 		.driver_data = (void *)&chuwi_hi8_data,
851 		.matches = {
852 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
853 			DMI_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
854 			DMI_MATCH(DMI_BIOS_VERSION, "H1D_S806_206"),
855 		},
856 	},
857 	{
858 		/* Chuwi Hi8 Air (CWI543) */
859 		.driver_data = (void *)&chuwi_hi8_air_data,
860 		.matches = {
861 			DMI_MATCH(DMI_BOARD_VENDOR, "Default string"),
862 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
863 			DMI_MATCH(DMI_PRODUCT_NAME, "Hi8 Air"),
864 		},
865 	},
866 	{
867 		/* Chuwi Hi8 Pro (CWI513) */
868 		.driver_data = (void *)&chuwi_hi8_pro_data,
869 		.matches = {
870 			DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
871 			DMI_MATCH(DMI_PRODUCT_NAME, "X1D3_C806N"),
872 		},
873 	},
874 	{
875 		/* Chuwi Hi10 Air */
876 		.driver_data = (void *)&chuwi_hi10_air_data,
877 		.matches = {
878 			DMI_MATCH(DMI_SYS_VENDOR, "CHUWI INNOVATION AND TECHNOLOGY(SHENZHEN)CO.LTD"),
879 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
880 			DMI_MATCH(DMI_PRODUCT_SKU, "P1W6_C109D_B"),
881 		},
882 	},
883 	{
884 		/* Chuwi Hi10 Plus (CWI527) */
885 		.driver_data = (void *)&chuwi_hi10_plus_data,
886 		.matches = {
887 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
888 			DMI_MATCH(DMI_PRODUCT_NAME, "Hi10 plus tablet"),
889 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
890 		},
891 	},
892 	{
893 		/* Chuwi Vi8 (CWI506) */
894 		.driver_data = (void *)&chuwi_vi8_data,
895 		.matches = {
896 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
897 			DMI_MATCH(DMI_PRODUCT_NAME, "i86"),
898 			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI.D86JLBNR"),
899 		},
900 	},
901 	{
902 		/* Chuwi Vi8 Plus (CWI519) */
903 		.driver_data = (void *)&chuwi_vi8_plus_data,
904 		.matches = {
905 			DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
906 			DMI_MATCH(DMI_PRODUCT_NAME, "D2D3_Vi8A1"),
907 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
908 		},
909 	},
910 	{
911 		/* Chuwi Vi10 (CWI505) */
912 		.driver_data = (void *)&chuwi_vi10_data,
913 		.matches = {
914 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
915 			DMI_MATCH(DMI_BOARD_NAME, "BYT-PF02"),
916 			DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
917 			DMI_MATCH(DMI_PRODUCT_NAME, "S165"),
918 		},
919 	},
920 	{
921 		/* Chuwi Surbook Mini (CWI540) */
922 		.driver_data = (void *)&chuwi_surbook_mini_data,
923 		.matches = {
924 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
925 			DMI_MATCH(DMI_PRODUCT_NAME, "C3W6_AP108_4G"),
926 		},
927 	},
928 	{
929 		/* Connect Tablet 9 */
930 		.driver_data = (void *)&connect_tablet9_data,
931 		.matches = {
932 			DMI_MATCH(DMI_SYS_VENDOR, "Connect"),
933 			DMI_MATCH(DMI_PRODUCT_NAME, "Tablet 9"),
934 		},
935 	},
936 	{
937 		/* CUBE iwork8 Air */
938 		.driver_data = (void *)&cube_iwork8_air_data,
939 		.matches = {
940 			DMI_MATCH(DMI_SYS_VENDOR, "cube"),
941 			DMI_MATCH(DMI_PRODUCT_NAME, "i1-TF"),
942 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
943 		},
944 	},
945 	{
946 		/* Cube KNote i1101 */
947 		.driver_data = (void *)&cube_knote_i1101_data,
948 		.matches = {
949 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
950 			DMI_MATCH(DMI_BOARD_NAME, "L1W6_I1101"),
951 			DMI_MATCH(DMI_SYS_VENDOR, "ALLDOCUBE"),
952 			DMI_MATCH(DMI_PRODUCT_NAME, "i1101"),
953 		},
954 	},
955 	{
956 		/* DEXP Ursus 7W */
957 		.driver_data = (void *)&dexp_ursus_7w_data,
958 		.matches = {
959 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
960 			DMI_MATCH(DMI_PRODUCT_NAME, "7W"),
961 		},
962 	},
963 	{
964 		/* Digma Citi E200 */
965 		.driver_data = (void *)&digma_citi_e200_data,
966 		.matches = {
967 			DMI_MATCH(DMI_SYS_VENDOR, "Digma"),
968 			DMI_MATCH(DMI_PRODUCT_NAME, "CITI E200"),
969 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
970 		},
971 	},
972 	{
973 		/* Estar Beauty HD (MID 7316R) */
974 		.driver_data = (void *)&estar_beauty_hd_data,
975 		.matches = {
976 			DMI_MATCH(DMI_SYS_VENDOR, "Estar"),
977 			DMI_MATCH(DMI_PRODUCT_NAME, "eSTAR BEAUTY HD Intel Quad core"),
978 		},
979 	},
980 	{
981 		/* GP-electronic T701 */
982 		.driver_data = (void *)&gp_electronic_t701_data,
983 		.matches = {
984 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
985 			DMI_MATCH(DMI_PRODUCT_NAME, "T701"),
986 			DMI_MATCH(DMI_BIOS_VERSION, "BYT70A.YNCHENG.WIN.007"),
987 		},
988 	},
989 	{
990 		/* I.T.Works TW701 (same hardware as the Trekstor ST70416-6) */
991 		.driver_data = (void *)&trekstor_surftab_wintron70_data,
992 		.matches = {
993 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
994 			DMI_MATCH(DMI_PRODUCT_NAME, "i71c"),
995 			DMI_MATCH(DMI_BIOS_VERSION, "itWORKS.G.WI71C.JGBMRB"),
996 		},
997 	},
998 	{
999 		/* Irbis TW90 */
1000 		.driver_data = (void *)&irbis_tw90_data,
1001 		.matches = {
1002 			DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"),
1003 			DMI_MATCH(DMI_PRODUCT_NAME, "TW90"),
1004 		},
1005 	},
1006 	{
1007 		/* Irbis TW118 */
1008 		.driver_data = (void *)&irbis_tw118_data,
1009 		.matches = {
1010 			DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"),
1011 			DMI_MATCH(DMI_PRODUCT_NAME, "TW118"),
1012 		},
1013 	},
1014 	{
1015 		/* I.T.Works TW891 */
1016 		.driver_data = (void *)&itworks_tw891_data,
1017 		.matches = {
1018 			DMI_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
1019 			DMI_MATCH(DMI_PRODUCT_NAME, "TW891"),
1020 		},
1021 	},
1022 	{
1023 		/* Jumper EZpad 6 Pro */
1024 		.driver_data = (void *)&jumper_ezpad_6_pro_data,
1025 		.matches = {
1026 			DMI_MATCH(DMI_SYS_VENDOR, "Jumper"),
1027 			DMI_MATCH(DMI_PRODUCT_NAME, "EZpad"),
1028 			DMI_MATCH(DMI_BIOS_VERSION, "5.12"),
1029 			/* Above matches are too generic, add bios-date match */
1030 			DMI_MATCH(DMI_BIOS_DATE, "08/18/2017"),
1031 		},
1032 	},
1033 	{
1034 		/* Jumper EZpad 6 Pro B */
1035 		.driver_data = (void *)&jumper_ezpad_6_pro_b_data,
1036 		.matches = {
1037 			DMI_MATCH(DMI_SYS_VENDOR, "Jumper"),
1038 			DMI_MATCH(DMI_PRODUCT_NAME, "EZpad"),
1039 			DMI_MATCH(DMI_BIOS_VERSION, "5.12"),
1040 			/* Above matches are too generic, add bios-date match */
1041 			DMI_MATCH(DMI_BIOS_DATE, "04/24/2018"),
1042 		},
1043 	},
1044 	{
1045 		/* Jumper EZpad 6 m4 */
1046 		.driver_data = (void *)&jumper_ezpad_6_m4_data,
1047 		.matches = {
1048 			DMI_MATCH(DMI_SYS_VENDOR, "jumper"),
1049 			DMI_MATCH(DMI_PRODUCT_NAME, "EZpad"),
1050 			/* Jumper8.S106x.A00C.1066 with the version dropped */
1051 			DMI_MATCH(DMI_BIOS_VERSION, "Jumper8.S106x"),
1052 		},
1053 	},
1054 	{
1055 		/* Jumper EZpad 7 */
1056 		.driver_data = (void *)&jumper_ezpad_7_data,
1057 		.matches = {
1058 			DMI_MATCH(DMI_SYS_VENDOR, "Jumper"),
1059 			DMI_MATCH(DMI_PRODUCT_NAME, "EZpad"),
1060 			/* Jumper12x.WJ2012.bsBKRCP05 with the version dropped */
1061 			DMI_MATCH(DMI_BIOS_VERSION, "Jumper12x.WJ2012.bsBKRCP"),
1062 		},
1063 	},
1064 	{
1065 		/* Jumper EZpad mini3 */
1066 		.driver_data = (void *)&jumper_ezpad_mini3_data,
1067 		.matches = {
1068 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
1069 			/* jumperx.T87.KFBNEEA02 with the version-nr dropped */
1070 			DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
1071 		},
1072 	},
1073 	{
1074 		/* Mediacom Flexbook Edge 11 (same hw as TS Primebook C11) */
1075 		.driver_data = (void *)&trekstor_primebook_c11_data,
1076 		.matches = {
1077 			DMI_MATCH(DMI_SYS_VENDOR, "MEDIACOM"),
1078 			DMI_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
1079 		},
1080 	},
1081 	{
1082 		/* MP Man Converter 9 */
1083 		.driver_data = (void *)&mpman_converter9_data,
1084 		.matches = {
1085 			DMI_MATCH(DMI_SYS_VENDOR, "MPMAN"),
1086 			DMI_MATCH(DMI_PRODUCT_NAME, "Converter9"),
1087 		},
1088 	},
1089 	{
1090 		/* MP Man MPWIN895CL */
1091 		.driver_data = (void *)&mpman_mpwin895cl_data,
1092 		.matches = {
1093 			DMI_MATCH(DMI_SYS_VENDOR, "MPMAN"),
1094 			DMI_MATCH(DMI_PRODUCT_NAME, "MPWIN8900CL"),
1095 		},
1096 	},
1097 	{
1098 		/* Myria MY8307 */
1099 		.driver_data = (void *)&myria_my8307_data,
1100 		.matches = {
1101 			DMI_MATCH(DMI_SYS_VENDOR, "Complet Electro Serv"),
1102 			DMI_MATCH(DMI_PRODUCT_NAME, "MY8307"),
1103 		},
1104 	},
1105 	{
1106 		/* Onda oBook 20 Plus */
1107 		.driver_data = (void *)&onda_obook_20_plus_data,
1108 		.matches = {
1109 			DMI_MATCH(DMI_SYS_VENDOR, "ONDA"),
1110 			DMI_MATCH(DMI_PRODUCT_NAME, "OBOOK 20 PLUS"),
1111 		},
1112 	},
1113 	{
1114 		/* ONDA V80 plus v3 (P80PSBG9V3A01501) */
1115 		.driver_data = (void *)&onda_v80_plus_v3_data,
1116 		.matches = {
1117 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ONDA"),
1118 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "V80 PLUS")
1119 		},
1120 	},
1121 	{
1122 		/* ONDA V820w DualOS */
1123 		.driver_data = (void *)&onda_v820w_32g_data,
1124 		.matches = {
1125 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "ONDA"),
1126 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "V820w DualOS")
1127 		},
1128 	},
1129 	{
1130 		/* ONDA V891 v5 */
1131 		.driver_data = (void *)&onda_v891_v5_data,
1132 		.matches = {
1133 			DMI_MATCH(DMI_SYS_VENDOR, "ONDA"),
1134 			DMI_MATCH(DMI_PRODUCT_NAME, "ONDA Tablet"),
1135 			DMI_MATCH(DMI_BIOS_VERSION, "ONDA.D869CJABNRBA06"),
1136 		},
1137 	},
1138 	{
1139 		/* ONDA V891w revision P891WBEBV1B00 aka v1 */
1140 		.driver_data = (void *)&onda_v891w_v1_data,
1141 		.matches = {
1142 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "ONDA"),
1143 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONDA Tablet"),
1144 			DMI_EXACT_MATCH(DMI_BOARD_VERSION, "V001"),
1145 			/* Exact match, different versions need different fw */
1146 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "ONDA.W89EBBN08"),
1147 		},
1148 	},
1149 	{
1150 		/* ONDA V891w Dual OS P891DCF2V1A01274 64GB */
1151 		.driver_data = (void *)&onda_v891w_v3_data,
1152 		.matches = {
1153 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
1154 			DMI_MATCH(DMI_PRODUCT_NAME, "ONDA Tablet"),
1155 			DMI_MATCH(DMI_BIOS_VERSION, "ONDA.D890HBBNR0A"),
1156 		},
1157 	},
1158 	{
1159 		/* Pipo W2S */
1160 		.driver_data = (void *)&pipo_w2s_data,
1161 		.matches = {
1162 			DMI_MATCH(DMI_SYS_VENDOR, "PIPO"),
1163 			DMI_MATCH(DMI_PRODUCT_NAME, "W2S"),
1164 		},
1165 	},
1166 	{
1167 		/* Pipo W11 */
1168 		.driver_data = (void *)&pipo_w11_data,
1169 		.matches = {
1170 			DMI_MATCH(DMI_SYS_VENDOR, "PIPO"),
1171 			DMI_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
1172 			/* Above matches are too generic, add bios-ver match */
1173 			DMI_MATCH(DMI_BIOS_VERSION, "JS-BI-10.6-SF133GR300-GA55B-024-F"),
1174 		},
1175 	},
1176 	{
1177 		/* Ployer Momo7w (same hardware as the Trekstor ST70416-6) */
1178 		.driver_data = (void *)&trekstor_surftab_wintron70_data,
1179 		.matches = {
1180 			DMI_MATCH(DMI_SYS_VENDOR, "Shenzhen PLOYER"),
1181 			DMI_MATCH(DMI_PRODUCT_NAME, "MOMO7W"),
1182 			/* Exact match, different versions need different fw */
1183 			DMI_MATCH(DMI_BIOS_VERSION, "MOMO.G.WI71C.MABMRBA02"),
1184 		},
1185 	},
1186 	{
1187 		/* Point of View mobii wintab p800w (v2.0) */
1188 		.driver_data = (void *)&pov_mobii_wintab_p800w_v20_data,
1189 		.matches = {
1190 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
1191 			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
1192 			DMI_MATCH(DMI_BIOS_VERSION, "3BAIR1014"),
1193 			/* Above matches are too generic, add bios-date match */
1194 			DMI_MATCH(DMI_BIOS_DATE, "10/24/2014"),
1195 		},
1196 	},
1197 	{
1198 		/* Predia Basic tablet) */
1199 		.driver_data = (void *)&predia_basic_data,
1200 		.matches = {
1201 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
1202 			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
1203 			/* Above matches are too generic, add bios-version match */
1204 			DMI_MATCH(DMI_BIOS_VERSION, "Mx.WT107.KUBNGEA"),
1205 		},
1206 	},
1207 	{
1208 		/* Point of View mobii wintab p800w (v2.1) */
1209 		.driver_data = (void *)&pov_mobii_wintab_p800w_v21_data,
1210 		.matches = {
1211 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
1212 			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
1213 			DMI_MATCH(DMI_BIOS_VERSION, "3BAIR1013"),
1214 			/* Above matches are too generic, add bios-date match */
1215 			DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"),
1216 		},
1217 	},
1218 	{
1219 		/* Point of View mobii wintab p1006w (v1.0) */
1220 		.driver_data = (void *)&pov_mobii_wintab_p1006w_v10_data,
1221 		.matches = {
1222 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
1223 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
1224 			/* Note 105b is Foxcon's USB/PCI vendor id */
1225 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"),
1226 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
1227 		},
1228 	},
1229 	{
1230 		/* Schneider SCT101CTM */
1231 		.driver_data = (void *)&schneider_sct101ctm_data,
1232 		.matches = {
1233 			DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
1234 			DMI_MATCH(DMI_PRODUCT_NAME, "SCT101CTM"),
1235 		},
1236 	},
1237 	{
1238 		/* Techbite Arc 11.6 */
1239 		.driver_data = (void *)&techbite_arc_11_6_data,
1240 		.matches = {
1241 			DMI_MATCH(DMI_SYS_VENDOR, "mPTech"),
1242 			DMI_MATCH(DMI_PRODUCT_NAME, "techBite Arc 11.6"),
1243 			DMI_MATCH(DMI_BOARD_NAME, "G8316_272B"),
1244 		},
1245 	},
1246 	{
1247 		/* Teclast X3 Plus */
1248 		.driver_data = (void *)&teclast_x3_plus_data,
1249 		.matches = {
1250 			DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
1251 			DMI_MATCH(DMI_PRODUCT_NAME, "X3 Plus"),
1252 			DMI_MATCH(DMI_BOARD_NAME, "X3 Plus"),
1253 		},
1254 	},
1255 	{
1256 		/* Teclast X98 Plus II */
1257 		.driver_data = (void *)&teclast_x98plus2_data,
1258 		.matches = {
1259 			DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
1260 			DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"),
1261 		},
1262 	},
1263 	{
1264 		/* Trekstor Primebook C11 */
1265 		.driver_data = (void *)&trekstor_primebook_c11_data,
1266 		.matches = {
1267 			DMI_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
1268 			DMI_MATCH(DMI_PRODUCT_NAME, "Primebook C11"),
1269 		},
1270 	},
1271 	{
1272 		/* Trekstor Primebook C11B (same touchscreen as the C11) */
1273 		.driver_data = (void *)&trekstor_primebook_c11_data,
1274 		.matches = {
1275 			DMI_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
1276 			DMI_MATCH(DMI_PRODUCT_NAME, "PRIMEBOOK C11B"),
1277 		},
1278 	},
1279 	{
1280 		/* Trekstor Primebook C13 */
1281 		.driver_data = (void *)&trekstor_primebook_c13_data,
1282 		.matches = {
1283 			DMI_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
1284 			DMI_MATCH(DMI_PRODUCT_NAME, "Primebook C13"),
1285 		},
1286 	},
1287 	{
1288 		/* Trekstor Primetab T13B */
1289 		.driver_data = (void *)&trekstor_primetab_t13b_data,
1290 		.matches = {
1291 			DMI_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
1292 			DMI_MATCH(DMI_PRODUCT_NAME, "Primetab T13B"),
1293 		},
1294 	},
1295 	{
1296 		/* TrekStor SurfTab twin 10.1 ST10432-8 */
1297 		.driver_data = (void *)&trekstor_surftab_twin_10_1_data,
1298 		.matches = {
1299 			DMI_MATCH(DMI_SYS_VENDOR, "TrekStor"),
1300 			DMI_MATCH(DMI_PRODUCT_NAME, "SurfTab twin 10.1"),
1301 		},
1302 	},
1303 	{
1304 		/* Trekstor Surftab Wintron 7.0 ST70416-6 */
1305 		.driver_data = (void *)&trekstor_surftab_wintron70_data,
1306 		.matches = {
1307 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
1308 			DMI_MATCH(DMI_PRODUCT_NAME, "ST70416-6"),
1309 			/* Exact match, different versions need different fw */
1310 			DMI_MATCH(DMI_BIOS_VERSION, "TREK.G.WI71C.JGBMRBA04"),
1311 		},
1312 	},
1313 	{
1314 		/* Trekstor Surftab Wintron 7.0 ST70416-6, newer BIOS */
1315 		.driver_data = (void *)&trekstor_surftab_wintron70_data,
1316 		.matches = {
1317 			DMI_MATCH(DMI_SYS_VENDOR, "TrekStor"),
1318 			DMI_MATCH(DMI_PRODUCT_NAME, "SurfTab wintron 7.0 ST70416-6"),
1319 			/* Exact match, different versions need different fw */
1320 			DMI_MATCH(DMI_BIOS_VERSION, "TREK.G.WI71C.JGBMRBA05"),
1321 		},
1322 	},
1323 	{
1324 		/* Trekstor Yourbook C11B (same touchscreen as the Primebook C11) */
1325 		.driver_data = (void *)&trekstor_primebook_c11_data,
1326 		.matches = {
1327 			DMI_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
1328 			DMI_MATCH(DMI_PRODUCT_NAME, "YOURBOOK C11B"),
1329 		},
1330 	},
1331 	{
1332 		/* Vinga Twizzle J116 */
1333 		.driver_data = (void *)&vinga_twizzle_j116_data,
1334 		.matches = {
1335 			DMI_MATCH(DMI_PRODUCT_NAME, "VINGA Twizzle J116"),
1336 		},
1337 	},
1338 	{
1339 		/* Yours Y8W81, same case and touchscreen as Chuwi Vi8 */
1340 		.driver_data = (void *)&chuwi_vi8_data,
1341 		.matches = {
1342 			DMI_MATCH(DMI_SYS_VENDOR, "YOURS"),
1343 			DMI_MATCH(DMI_PRODUCT_NAME, "Y8W81"),
1344 		},
1345 	},
1346 	{ }
1347 };
1348 
1349 static const struct ts_dmi_data *ts_data;
1350 
1351 static void ts_dmi_add_props(struct i2c_client *client)
1352 {
1353 	struct device *dev = &client->dev;
1354 	int error;
1355 
1356 	if (has_acpi_companion(dev) &&
1357 	    !strncmp(ts_data->acpi_name, client->name, I2C_NAME_SIZE)) {
1358 		error = device_add_properties(dev, ts_data->properties);
1359 		if (error)
1360 			dev_err(dev, "failed to add properties: %d\n", error);
1361 	}
1362 }
1363 
1364 static int ts_dmi_notifier_call(struct notifier_block *nb,
1365 				unsigned long action, void *data)
1366 {
1367 	struct device *dev = data;
1368 	struct i2c_client *client;
1369 
1370 	switch (action) {
1371 	case BUS_NOTIFY_ADD_DEVICE:
1372 		client = i2c_verify_client(dev);
1373 		if (client)
1374 			ts_dmi_add_props(client);
1375 		break;
1376 
1377 	default:
1378 		break;
1379 	}
1380 
1381 	return 0;
1382 }
1383 
1384 static struct notifier_block ts_dmi_notifier = {
1385 	.notifier_call = ts_dmi_notifier_call,
1386 };
1387 
1388 static int __init ts_dmi_init(void)
1389 {
1390 	const struct dmi_system_id *dmi_id;
1391 	int error;
1392 
1393 	dmi_id = dmi_first_match(touchscreen_dmi_table);
1394 	if (!dmi_id)
1395 		return 0; /* Not an error */
1396 
1397 	ts_data = dmi_id->driver_data;
1398 	/* Some dmi table entries only provide an efi_embedded_fw_desc */
1399 	if (!ts_data->properties)
1400 		return 0;
1401 
1402 	error = bus_register_notifier(&i2c_bus_type, &ts_dmi_notifier);
1403 	if (error)
1404 		pr_err("%s: failed to register i2c bus notifier: %d\n",
1405 			__func__, error);
1406 
1407 	return error;
1408 }
1409 
1410 /*
1411  * We are registering out notifier after i2c core is initialized and i2c bus
1412  * itself is ready (which happens at postcore initcall level), but before
1413  * ACPI starts enumerating devices (at subsys initcall level).
1414  */
1415 arch_initcall(ts_dmi_init);
1416