1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Kontron PLD MFD core driver
4 *
5 * Copyright (c) 2010-2013 Kontron Europe GmbH
6 * Author: Michael Brunner <michael.brunner@kontron.com>
7 */
8
9 #include <linux/platform_device.h>
10 #include <linux/mfd/core.h>
11 #include <linux/mfd/kempld.h>
12 #include <linux/module.h>
13 #include <linux/dmi.h>
14 #include <linux/io.h>
15 #include <linux/delay.h>
16 #include <linux/acpi.h>
17
18 #define MAX_ID_LEN 4
19 static char force_device_id[MAX_ID_LEN + 1] = "";
20 module_param_string(force_device_id, force_device_id,
21 sizeof(force_device_id), 0);
22 MODULE_PARM_DESC(force_device_id, "Override detected product");
23
24 /*
25 * Get hardware mutex to block firmware from accessing the pld.
26 * It is possible for the firmware may hold the mutex for an extended length of
27 * time. This function will block until access has been granted.
28 */
kempld_get_hardware_mutex(struct kempld_device_data * pld)29 static void kempld_get_hardware_mutex(struct kempld_device_data *pld)
30 {
31 /* The mutex bit will read 1 until access has been granted */
32 while (ioread8(pld->io_index) & KEMPLD_MUTEX_KEY)
33 usleep_range(1000, 3000);
34 }
35
kempld_release_hardware_mutex(struct kempld_device_data * pld)36 static void kempld_release_hardware_mutex(struct kempld_device_data *pld)
37 {
38 /* The harware mutex is released when 1 is written to the mutex bit. */
39 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
40 }
41
kempld_get_info_generic(struct kempld_device_data * pld)42 static int kempld_get_info_generic(struct kempld_device_data *pld)
43 {
44 u16 version;
45 u8 spec;
46
47 kempld_get_mutex(pld);
48
49 version = kempld_read16(pld, KEMPLD_VERSION);
50 spec = kempld_read8(pld, KEMPLD_SPEC);
51 pld->info.buildnr = kempld_read16(pld, KEMPLD_BUILDNR);
52
53 pld->info.minor = KEMPLD_VERSION_GET_MINOR(version);
54 pld->info.major = KEMPLD_VERSION_GET_MAJOR(version);
55 pld->info.number = KEMPLD_VERSION_GET_NUMBER(version);
56 pld->info.type = KEMPLD_VERSION_GET_TYPE(version);
57
58 if (spec == 0xff) {
59 pld->info.spec_minor = 0;
60 pld->info.spec_major = 1;
61 } else {
62 pld->info.spec_minor = KEMPLD_SPEC_GET_MINOR(spec);
63 pld->info.spec_major = KEMPLD_SPEC_GET_MAJOR(spec);
64 }
65
66 if (pld->info.spec_major > 0)
67 pld->feature_mask = kempld_read16(pld, KEMPLD_FEATURE);
68 else
69 pld->feature_mask = 0;
70
71 kempld_release_mutex(pld);
72
73 return 0;
74 }
75
76 enum kempld_cells {
77 KEMPLD_I2C = 0,
78 KEMPLD_WDT,
79 KEMPLD_GPIO,
80 KEMPLD_UART,
81 };
82
83 static const char *kempld_dev_names[] = {
84 [KEMPLD_I2C] = "kempld-i2c",
85 [KEMPLD_WDT] = "kempld-wdt",
86 [KEMPLD_GPIO] = "kempld-gpio",
87 [KEMPLD_UART] = "kempld-uart",
88 };
89
90 #define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_dev_names)
91
kempld_register_cells_generic(struct kempld_device_data * pld)92 static int kempld_register_cells_generic(struct kempld_device_data *pld)
93 {
94 struct mfd_cell devs[KEMPLD_MAX_DEVS] = {};
95 int i = 0;
96
97 if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C)
98 devs[i++].name = kempld_dev_names[KEMPLD_I2C];
99
100 if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG)
101 devs[i++].name = kempld_dev_names[KEMPLD_WDT];
102
103 if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO)
104 devs[i++].name = kempld_dev_names[KEMPLD_GPIO];
105
106 if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART)
107 devs[i++].name = kempld_dev_names[KEMPLD_UART];
108
109 return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL);
110 }
111
112 static struct resource kempld_ioresource = {
113 .start = KEMPLD_IOINDEX,
114 .end = KEMPLD_IODATA,
115 .flags = IORESOURCE_IO,
116 };
117
118 static const struct kempld_platform_data kempld_platform_data_generic = {
119 .pld_clock = KEMPLD_CLK,
120 .ioresource = &kempld_ioresource,
121 .get_hardware_mutex = kempld_get_hardware_mutex,
122 .release_hardware_mutex = kempld_release_hardware_mutex,
123 .get_info = kempld_get_info_generic,
124 .register_cells = kempld_register_cells_generic,
125 };
126
127 static struct platform_device *kempld_pdev;
128
kempld_create_platform_device(const struct dmi_system_id * id)129 static int kempld_create_platform_device(const struct dmi_system_id *id)
130 {
131 const struct kempld_platform_data *pdata = id->driver_data;
132 int ret;
133
134 kempld_pdev = platform_device_alloc("kempld", -1);
135 if (!kempld_pdev)
136 return -ENOMEM;
137
138 ret = platform_device_add_data(kempld_pdev, pdata, sizeof(*pdata));
139 if (ret)
140 goto err;
141
142 ret = platform_device_add_resources(kempld_pdev, pdata->ioresource, 1);
143 if (ret)
144 goto err;
145
146 ret = platform_device_add(kempld_pdev);
147 if (ret)
148 goto err;
149
150 return 0;
151 err:
152 platform_device_put(kempld_pdev);
153 return ret;
154 }
155
156 /**
157 * kempld_read8 - read 8 bit register
158 * @pld: kempld_device_data structure describing the PLD
159 * @index: register index on the chip
160 *
161 * kempld_get_mutex must be called prior to calling this function.
162 */
kempld_read8(struct kempld_device_data * pld,u8 index)163 u8 kempld_read8(struct kempld_device_data *pld, u8 index)
164 {
165 iowrite8(index, pld->io_index);
166 return ioread8(pld->io_data);
167 }
168 EXPORT_SYMBOL_GPL(kempld_read8);
169
170 /**
171 * kempld_write8 - write 8 bit register
172 * @pld: kempld_device_data structure describing the PLD
173 * @index: register index on the chip
174 * @data: new register value
175 *
176 * kempld_get_mutex must be called prior to calling this function.
177 */
kempld_write8(struct kempld_device_data * pld,u8 index,u8 data)178 void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data)
179 {
180 iowrite8(index, pld->io_index);
181 iowrite8(data, pld->io_data);
182 }
183 EXPORT_SYMBOL_GPL(kempld_write8);
184
185 /**
186 * kempld_read16 - read 16 bit register
187 * @pld: kempld_device_data structure describing the PLD
188 * @index: register index on the chip
189 *
190 * kempld_get_mutex must be called prior to calling this function.
191 */
kempld_read16(struct kempld_device_data * pld,u8 index)192 u16 kempld_read16(struct kempld_device_data *pld, u8 index)
193 {
194 return kempld_read8(pld, index) | kempld_read8(pld, index + 1) << 8;
195 }
196 EXPORT_SYMBOL_GPL(kempld_read16);
197
198 /**
199 * kempld_write16 - write 16 bit register
200 * @pld: kempld_device_data structure describing the PLD
201 * @index: register index on the chip
202 * @data: new register value
203 *
204 * kempld_get_mutex must be called prior to calling this function.
205 */
kempld_write16(struct kempld_device_data * pld,u8 index,u16 data)206 void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data)
207 {
208 kempld_write8(pld, index, (u8)data);
209 kempld_write8(pld, index + 1, (u8)(data >> 8));
210 }
211 EXPORT_SYMBOL_GPL(kempld_write16);
212
213 /**
214 * kempld_read32 - read 32 bit register
215 * @pld: kempld_device_data structure describing the PLD
216 * @index: register index on the chip
217 *
218 * kempld_get_mutex must be called prior to calling this function.
219 */
kempld_read32(struct kempld_device_data * pld,u8 index)220 u32 kempld_read32(struct kempld_device_data *pld, u8 index)
221 {
222 return kempld_read16(pld, index) | kempld_read16(pld, index + 2) << 16;
223 }
224 EXPORT_SYMBOL_GPL(kempld_read32);
225
226 /**
227 * kempld_write32 - write 32 bit register
228 * @pld: kempld_device_data structure describing the PLD
229 * @index: register index on the chip
230 * @data: new register value
231 *
232 * kempld_get_mutex must be called prior to calling this function.
233 */
kempld_write32(struct kempld_device_data * pld,u8 index,u32 data)234 void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data)
235 {
236 kempld_write16(pld, index, (u16)data);
237 kempld_write16(pld, index + 2, (u16)(data >> 16));
238 }
239 EXPORT_SYMBOL_GPL(kempld_write32);
240
241 /**
242 * kempld_get_mutex - acquire PLD mutex
243 * @pld: kempld_device_data structure describing the PLD
244 */
kempld_get_mutex(struct kempld_device_data * pld)245 void kempld_get_mutex(struct kempld_device_data *pld)
246 {
247 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
248
249 mutex_lock(&pld->lock);
250 pdata->get_hardware_mutex(pld);
251 }
252 EXPORT_SYMBOL_GPL(kempld_get_mutex);
253
254 /**
255 * kempld_release_mutex - release PLD mutex
256 * @pld: kempld_device_data structure describing the PLD
257 */
kempld_release_mutex(struct kempld_device_data * pld)258 void kempld_release_mutex(struct kempld_device_data *pld)
259 {
260 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
261
262 pdata->release_hardware_mutex(pld);
263 mutex_unlock(&pld->lock);
264 }
265 EXPORT_SYMBOL_GPL(kempld_release_mutex);
266
267 /**
268 * kempld_get_info - update device specific information
269 * @pld: kempld_device_data structure describing the PLD
270 *
271 * This function calls the configured board specific kempld_get_info_XXXX
272 * function which is responsible for gathering information about the specific
273 * hardware. The information is then stored within the pld structure.
274 */
kempld_get_info(struct kempld_device_data * pld)275 static int kempld_get_info(struct kempld_device_data *pld)
276 {
277 int ret;
278 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
279 char major, minor;
280
281 ret = pdata->get_info(pld);
282 if (ret)
283 return ret;
284
285 /* The Kontron PLD firmware version string has the following format:
286 * Pwxy.zzzz
287 * P: Fixed
288 * w: PLD number - 1 hex digit
289 * x: Major version - 1 alphanumerical digit (0-9A-V)
290 * y: Minor version - 1 alphanumerical digit (0-9A-V)
291 * zzzz: Build number - 4 zero padded hex digits */
292
293 if (pld->info.major < 10)
294 major = pld->info.major + '0';
295 else
296 major = (pld->info.major - 10) + 'A';
297 if (pld->info.minor < 10)
298 minor = pld->info.minor + '0';
299 else
300 minor = (pld->info.minor - 10) + 'A';
301
302 ret = scnprintf(pld->info.version, sizeof(pld->info.version),
303 "P%X%c%c.%04X", pld->info.number, major, minor,
304 pld->info.buildnr);
305 if (ret < 0)
306 return ret;
307
308 return 0;
309 }
310
311 /*
312 * kempld_register_cells - register cell drivers
313 *
314 * This function registers cell drivers for the detected hardware by calling
315 * the configured kempld_register_cells_XXXX function which is responsible
316 * to detect and register the needed cell drivers.
317 */
kempld_register_cells(struct kempld_device_data * pld)318 static int kempld_register_cells(struct kempld_device_data *pld)
319 {
320 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
321
322 return pdata->register_cells(pld);
323 }
324
kempld_get_type_string(struct kempld_device_data * pld)325 static const char *kempld_get_type_string(struct kempld_device_data *pld)
326 {
327 const char *version_type;
328
329 switch (pld->info.type) {
330 case 0:
331 version_type = "release";
332 break;
333 case 1:
334 version_type = "debug";
335 break;
336 case 2:
337 version_type = "custom";
338 break;
339 default:
340 version_type = "unspecified";
341 break;
342 }
343
344 return version_type;
345 }
346
pld_version_show(struct device * dev,struct device_attribute * attr,char * buf)347 static ssize_t pld_version_show(struct device *dev,
348 struct device_attribute *attr, char *buf)
349 {
350 struct kempld_device_data *pld = dev_get_drvdata(dev);
351
352 return sysfs_emit(buf, "%s\n", pld->info.version);
353 }
354
pld_specification_show(struct device * dev,struct device_attribute * attr,char * buf)355 static ssize_t pld_specification_show(struct device *dev,
356 struct device_attribute *attr, char *buf)
357 {
358 struct kempld_device_data *pld = dev_get_drvdata(dev);
359
360 return sysfs_emit(buf, "%d.%d\n", pld->info.spec_major, pld->info.spec_minor);
361 }
362
pld_type_show(struct device * dev,struct device_attribute * attr,char * buf)363 static ssize_t pld_type_show(struct device *dev,
364 struct device_attribute *attr, char *buf)
365 {
366 struct kempld_device_data *pld = dev_get_drvdata(dev);
367
368 return sysfs_emit(buf, "%s\n", kempld_get_type_string(pld));
369 }
370
371 static DEVICE_ATTR_RO(pld_version);
372 static DEVICE_ATTR_RO(pld_specification);
373 static DEVICE_ATTR_RO(pld_type);
374
375 static struct attribute *pld_attributes[] = {
376 &dev_attr_pld_version.attr,
377 &dev_attr_pld_specification.attr,
378 &dev_attr_pld_type.attr,
379 NULL
380 };
381
382 static const struct attribute_group pld_attr_group = {
383 .attrs = pld_attributes,
384 };
385
kempld_detect_device(struct kempld_device_data * pld)386 static int kempld_detect_device(struct kempld_device_data *pld)
387 {
388 u8 index_reg;
389 int ret;
390
391 mutex_lock(&pld->lock);
392
393 /* Check for empty IO space */
394 index_reg = ioread8(pld->io_index);
395 if (index_reg == 0xff && ioread8(pld->io_data) == 0xff) {
396 mutex_unlock(&pld->lock);
397 return -ENODEV;
398 }
399
400 /* Release hardware mutex if acquired */
401 if (!(index_reg & KEMPLD_MUTEX_KEY)) {
402 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
403 /* PXT and COMe-cPC2 boards may require a second release */
404 iowrite8(KEMPLD_MUTEX_KEY, pld->io_index);
405 }
406
407 mutex_unlock(&pld->lock);
408
409 ret = kempld_get_info(pld);
410 if (ret)
411 return ret;
412
413 dev_info(pld->dev, "Found Kontron PLD - %s (%s), spec %d.%d\n",
414 pld->info.version, kempld_get_type_string(pld),
415 pld->info.spec_major, pld->info.spec_minor);
416
417 ret = sysfs_create_group(&pld->dev->kobj, &pld_attr_group);
418 if (ret)
419 return ret;
420
421 ret = kempld_register_cells(pld);
422 if (ret)
423 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
424
425 return ret;
426 }
427
428 #ifdef CONFIG_ACPI
kempld_get_acpi_data(struct platform_device * pdev)429 static int kempld_get_acpi_data(struct platform_device *pdev)
430 {
431 struct list_head resource_list;
432 struct resource *resources;
433 struct resource_entry *rentry;
434 struct device *dev = &pdev->dev;
435 struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
436 const struct kempld_platform_data *pdata;
437 int ret;
438 int count;
439
440 pdata = acpi_device_get_match_data(dev);
441 ret = platform_device_add_data(pdev, pdata,
442 sizeof(struct kempld_platform_data));
443 if (ret)
444 return ret;
445
446 INIT_LIST_HEAD(&resource_list);
447 ret = acpi_dev_get_resources(acpi_dev, &resource_list, NULL, NULL);
448 if (ret < 0)
449 goto out;
450
451 count = ret;
452
453 if (count == 0) {
454 ret = platform_device_add_resources(pdev, pdata->ioresource, 1);
455 goto out;
456 }
457
458 resources = devm_kcalloc(&acpi_dev->dev, count, sizeof(*resources),
459 GFP_KERNEL);
460 if (!resources) {
461 ret = -ENOMEM;
462 goto out;
463 }
464
465 count = 0;
466 list_for_each_entry(rentry, &resource_list, node) {
467 memcpy(&resources[count], rentry->res,
468 sizeof(*resources));
469 count++;
470 }
471 ret = platform_device_add_resources(pdev, resources, count);
472
473 out:
474 acpi_dev_free_resource_list(&resource_list);
475
476 return ret;
477 }
478 #else
kempld_get_acpi_data(struct platform_device * pdev)479 static int kempld_get_acpi_data(struct platform_device *pdev)
480 {
481 return -ENODEV;
482 }
483 #endif /* CONFIG_ACPI */
484
kempld_probe(struct platform_device * pdev)485 static int kempld_probe(struct platform_device *pdev)
486 {
487 const struct kempld_platform_data *pdata;
488 struct device *dev = &pdev->dev;
489 struct kempld_device_data *pld;
490 struct resource *ioport;
491 int ret;
492
493 if (kempld_pdev == NULL) {
494 /*
495 * No kempld_pdev device has been registered in kempld_init,
496 * so we seem to be probing an ACPI platform device.
497 */
498 ret = kempld_get_acpi_data(pdev);
499 if (ret)
500 return ret;
501 } else if (kempld_pdev != pdev) {
502 /*
503 * The platform device we are probing is not the one we
504 * registered in kempld_init using the DMI table, so this one
505 * comes from ACPI.
506 * As we can only probe one - abort here and use the DMI
507 * based one instead.
508 */
509 dev_notice(dev, "platform device exists - not using ACPI\n");
510 return -ENODEV;
511 }
512 pdata = dev_get_platdata(dev);
513
514 pld = devm_kzalloc(dev, sizeof(*pld), GFP_KERNEL);
515 if (!pld)
516 return -ENOMEM;
517
518 ioport = platform_get_resource(pdev, IORESOURCE_IO, 0);
519 if (!ioport)
520 return -EINVAL;
521
522 pld->io_base = devm_ioport_map(dev, ioport->start,
523 resource_size(ioport));
524 if (!pld->io_base)
525 return -ENOMEM;
526
527 pld->io_index = pld->io_base;
528 pld->io_data = pld->io_base + 1;
529 pld->pld_clock = pdata->pld_clock;
530 pld->dev = dev;
531
532 mutex_init(&pld->lock);
533 platform_set_drvdata(pdev, pld);
534
535 return kempld_detect_device(pld);
536 }
537
kempld_remove(struct platform_device * pdev)538 static int kempld_remove(struct platform_device *pdev)
539 {
540 struct kempld_device_data *pld = platform_get_drvdata(pdev);
541 const struct kempld_platform_data *pdata = dev_get_platdata(pld->dev);
542
543 sysfs_remove_group(&pld->dev->kobj, &pld_attr_group);
544
545 mfd_remove_devices(&pdev->dev);
546 pdata->release_hardware_mutex(pld);
547
548 return 0;
549 }
550
551 #ifdef CONFIG_ACPI
552 static const struct acpi_device_id kempld_acpi_table[] = {
553 { "KEM0000", (kernel_ulong_t)&kempld_platform_data_generic },
554 { "KEM0001", (kernel_ulong_t)&kempld_platform_data_generic },
555 {}
556 };
557 MODULE_DEVICE_TABLE(acpi, kempld_acpi_table);
558 #endif
559
560 static struct platform_driver kempld_driver = {
561 .driver = {
562 .name = "kempld",
563 .acpi_match_table = ACPI_PTR(kempld_acpi_table),
564 },
565 .probe = kempld_probe,
566 .remove = kempld_remove,
567 };
568
569 static const struct dmi_system_id kempld_dmi_table[] __initconst = {
570 {
571 .ident = "BBD6",
572 .matches = {
573 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
574 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBD"),
575 },
576 .driver_data = (void *)&kempld_platform_data_generic,
577 .callback = kempld_create_platform_device,
578 }, {
579 .ident = "BBL6",
580 .matches = {
581 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
582 DMI_MATCH(DMI_BOARD_NAME, "COMe-bBL6"),
583 },
584 .driver_data = (void *)&kempld_platform_data_generic,
585 .callback = kempld_create_platform_device,
586 }, {
587 .ident = "BDV7",
588 .matches = {
589 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
590 DMI_MATCH(DMI_BOARD_NAME, "COMe-bDV7"),
591 },
592 .driver_data = (void *)&kempld_platform_data_generic,
593 .callback = kempld_create_platform_device,
594 }, {
595 .ident = "BHL6",
596 .matches = {
597 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
598 DMI_MATCH(DMI_BOARD_NAME, "COMe-bHL6"),
599 },
600 .driver_data = (void *)&kempld_platform_data_generic,
601 .callback = kempld_create_platform_device,
602 }, {
603 .ident = "BKL6",
604 .matches = {
605 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
606 DMI_MATCH(DMI_BOARD_NAME, "COMe-bKL6"),
607 },
608 .driver_data = (void *)&kempld_platform_data_generic,
609 .callback = kempld_create_platform_device,
610 }, {
611 .ident = "BSL6",
612 .matches = {
613 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
614 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSL6"),
615 },
616 .driver_data = (void *)&kempld_platform_data_generic,
617 .callback = kempld_create_platform_device,
618 }, {
619 .ident = "CAL6",
620 .matches = {
621 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
622 DMI_MATCH(DMI_BOARD_NAME, "COMe-cAL"),
623 },
624 .driver_data = (void *)&kempld_platform_data_generic,
625 .callback = kempld_create_platform_device,
626 }, {
627 .ident = "CBL6",
628 .matches = {
629 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
630 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBL6"),
631 },
632 .driver_data = (void *)&kempld_platform_data_generic,
633 .callback = kempld_create_platform_device,
634 }, {
635 .ident = "CBW6",
636 .matches = {
637 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
638 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBW6"),
639 },
640 .driver_data = (void *)&kempld_platform_data_generic,
641 .callback = kempld_create_platform_device,
642 }, {
643 .ident = "CCR2",
644 .matches = {
645 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
646 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP2"),
647 },
648 .driver_data = (void *)&kempld_platform_data_generic,
649 .callback = kempld_create_platform_device,
650 }, {
651 .ident = "CCR6",
652 .matches = {
653 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
654 DMI_MATCH(DMI_BOARD_NAME, "COMe-bIP6"),
655 },
656 .driver_data = (void *)&kempld_platform_data_generic,
657 .callback = kempld_create_platform_device,
658 }, {
659 .ident = "CDV7",
660 .matches = {
661 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
662 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDV7"),
663 },
664 .driver_data = (void *)&kempld_platform_data_generic,
665 .callback = kempld_create_platform_device,
666 }, {
667 .ident = "CHL6",
668 .matches = {
669 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
670 DMI_MATCH(DMI_BOARD_NAME, "COMe-cHL6"),
671 },
672 .driver_data = (void *)&kempld_platform_data_generic,
673 .callback = kempld_create_platform_device,
674 }, {
675 .ident = "CHR2",
676 .matches = {
677 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
678 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T2"),
679 },
680 .driver_data = (void *)&kempld_platform_data_generic,
681 .callback = kempld_create_platform_device,
682 }, {
683 .ident = "CHR2",
684 .matches = {
685 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
686 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T2"),
687 },
688 .driver_data = (void *)&kempld_platform_data_generic,
689 .callback = kempld_create_platform_device,
690 }, {
691 .ident = "CHR2",
692 .matches = {
693 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
694 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC2"),
695 },
696 .driver_data = (void *)&kempld_platform_data_generic,
697 .callback = kempld_create_platform_device,
698 }, {
699 .ident = "CHR6",
700 .matches = {
701 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
702 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-SC T6"),
703 },
704 .driver_data = (void *)&kempld_platform_data_generic,
705 .callback = kempld_create_platform_device,
706 }, {
707 .ident = "CHR6",
708 .matches = {
709 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
710 DMI_MATCH(DMI_BOARD_NAME, "ETXe-SC T6"),
711 },
712 .driver_data = (void *)&kempld_platform_data_generic,
713 .callback = kempld_create_platform_device,
714 }, {
715 .ident = "CHR6",
716 .matches = {
717 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
718 DMI_MATCH(DMI_BOARD_NAME, "COMe-bSC6"),
719 },
720 .driver_data = (void *)&kempld_platform_data_generic,
721 .callback = kempld_create_platform_device,
722 }, {
723 .ident = "CKL6",
724 .matches = {
725 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
726 DMI_MATCH(DMI_BOARD_NAME, "COMe-cKL6"),
727 },
728 .driver_data = (void *)&kempld_platform_data_generic,
729 .callback = kempld_create_platform_device,
730 }, {
731 .ident = "CNTG",
732 .matches = {
733 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
734 DMI_MATCH(DMI_BOARD_NAME, "ETXexpress-PC"),
735 },
736 .driver_data = (void *)&kempld_platform_data_generic,
737 .callback = kempld_create_platform_device,
738 }, {
739 .ident = "CNTG",
740 .matches = {
741 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
742 DMI_MATCH(DMI_BOARD_NAME, "COMe-bPC2"),
743 },
744 .driver_data = (void *)&kempld_platform_data_generic,
745 .callback = kempld_create_platform_device,
746 }, {
747 .ident = "CNTX",
748 .matches = {
749 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
750 DMI_MATCH(DMI_BOARD_NAME, "PXT"),
751 },
752 .driver_data = (void *)&kempld_platform_data_generic,
753 .callback = kempld_create_platform_device,
754 }, {
755 .ident = "CSL6",
756 .matches = {
757 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
758 DMI_MATCH(DMI_BOARD_NAME, "COMe-cSL6"),
759 },
760 .driver_data = (void *)&kempld_platform_data_generic,
761 .callback = kempld_create_platform_device,
762 }, {
763 .ident = "CVV6",
764 .matches = {
765 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
766 DMI_MATCH(DMI_BOARD_NAME, "COMe-cBT"),
767 },
768 .driver_data = (void *)&kempld_platform_data_generic,
769 .callback = kempld_create_platform_device,
770 }, {
771 .ident = "FRI2",
772 .matches = {
773 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
774 DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
775 },
776 .driver_data = (void *)&kempld_platform_data_generic,
777 .callback = kempld_create_platform_device,
778 }, {
779 .ident = "FRI2",
780 .matches = {
781 DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
782 },
783 .driver_data = (void *)&kempld_platform_data_generic,
784 .callback = kempld_create_platform_device,
785 }, {
786 .ident = "A203",
787 .matches = {
788 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
789 DMI_MATCH(DMI_BOARD_NAME, "KBox A-203"),
790 },
791 .driver_data = (void *)&kempld_platform_data_generic,
792 .callback = kempld_create_platform_device,
793 }, {
794 .ident = "M4A1",
795 .matches = {
796 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
797 DMI_MATCH(DMI_BOARD_NAME, "COMe-m4AL"),
798 },
799 .driver_data = (void *)&kempld_platform_data_generic,
800 .callback = kempld_create_platform_device,
801 }, {
802 .ident = "MAL1",
803 .matches = {
804 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
805 DMI_MATCH(DMI_BOARD_NAME, "COMe-mAL10"),
806 },
807 .driver_data = (void *)&kempld_platform_data_generic,
808 .callback = kempld_create_platform_device,
809 }, {
810 .ident = "MAPL",
811 .matches = {
812 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
813 DMI_MATCH(DMI_BOARD_NAME, "mITX-APL"),
814 },
815 .driver_data = (void *)&kempld_platform_data_generic,
816 .callback = kempld_create_platform_device,
817 }, {
818 .ident = "MBR1",
819 .matches = {
820 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
821 DMI_MATCH(DMI_BOARD_NAME, "ETX-OH"),
822 },
823 .driver_data = (void *)&kempld_platform_data_generic,
824 .callback = kempld_create_platform_device,
825 }, {
826 .ident = "MVV1",
827 .matches = {
828 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
829 DMI_MATCH(DMI_BOARD_NAME, "COMe-mBT"),
830 },
831 .driver_data = (void *)&kempld_platform_data_generic,
832 .callback = kempld_create_platform_device,
833 }, {
834 .ident = "NTC1",
835 .matches = {
836 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
837 DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
838 },
839 .driver_data = (void *)&kempld_platform_data_generic,
840 .callback = kempld_create_platform_device,
841 }, {
842 .ident = "NTC1",
843 .matches = {
844 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
845 DMI_MATCH(DMI_BOARD_NAME, "nETXe-TT"),
846 },
847 .driver_data = (void *)&kempld_platform_data_generic,
848 .callback = kempld_create_platform_device,
849 }, {
850 .ident = "NTC1",
851 .matches = {
852 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
853 DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
854 },
855 .driver_data = (void *)&kempld_platform_data_generic,
856 .callback = kempld_create_platform_device,
857 }, {
858 .ident = "NUP1",
859 .matches = {
860 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
861 DMI_MATCH(DMI_BOARD_NAME, "COMe-mCT"),
862 },
863 .driver_data = (void *)&kempld_platform_data_generic,
864 .callback = kempld_create_platform_device,
865 }, {
866 .ident = "PAPL",
867 .matches = {
868 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
869 DMI_MATCH(DMI_BOARD_NAME, "pITX-APL"),
870 },
871 .driver_data = (void *)&kempld_platform_data_generic,
872 .callback = kempld_create_platform_device,
873 }, {
874 .ident = "SXAL",
875 .matches = {
876 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
877 DMI_MATCH(DMI_BOARD_NAME, "SMARC-sXAL"),
878 },
879 .driver_data = (void *)&kempld_platform_data_generic,
880 .callback = kempld_create_platform_device,
881 }, {
882 .ident = "SXAL4",
883 .matches = {
884 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
885 DMI_MATCH(DMI_BOARD_NAME, "SMARC-sXA4"),
886 },
887 .driver_data = (void *)&kempld_platform_data_generic,
888 .callback = kempld_create_platform_device,
889 }, {
890 .ident = "UNP1",
891 .matches = {
892 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
893 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-DC"),
894 },
895 .driver_data = (void *)&kempld_platform_data_generic,
896 .callback = kempld_create_platform_device,
897 }, {
898 .ident = "UNP1",
899 .matches = {
900 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
901 DMI_MATCH(DMI_BOARD_NAME, "COMe-cDC2"),
902 },
903 .driver_data = (void *)&kempld_platform_data_generic,
904 .callback = kempld_create_platform_device,
905 }, {
906 .ident = "UNTG",
907 .matches = {
908 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
909 DMI_MATCH(DMI_BOARD_NAME, "microETXexpress-PC"),
910 },
911 .driver_data = (void *)&kempld_platform_data_generic,
912 .callback = kempld_create_platform_device,
913 }, {
914 .ident = "UNTG",
915 .matches = {
916 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
917 DMI_MATCH(DMI_BOARD_NAME, "COMe-cPC2"),
918 },
919 .driver_data = (void *)&kempld_platform_data_generic,
920 .callback = kempld_create_platform_device,
921 }, {
922 .ident = "UUP6",
923 .matches = {
924 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
925 DMI_MATCH(DMI_BOARD_NAME, "COMe-cCT6"),
926 },
927 .driver_data = (void *)&kempld_platform_data_generic,
928 .callback = kempld_create_platform_device,
929 }, {
930 .ident = "UTH6",
931 .matches = {
932 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
933 DMI_MATCH(DMI_BOARD_NAME, "COMe-cTH6"),
934 },
935 .driver_data = (void *)&kempld_platform_data_generic,
936 .callback = kempld_create_platform_device,
937 }, {
938 .ident = "Q7AL",
939 .matches = {
940 DMI_MATCH(DMI_BOARD_VENDOR, "Kontron"),
941 DMI_MATCH(DMI_BOARD_NAME, "Qseven-Q7AL"),
942 },
943 .driver_data = (void *)&kempld_platform_data_generic,
944 .callback = kempld_create_platform_device,
945 },
946 {}
947 };
948 MODULE_DEVICE_TABLE(dmi, kempld_dmi_table);
949
kempld_init(void)950 static int __init kempld_init(void)
951 {
952 const struct dmi_system_id *id;
953
954 if (force_device_id[0]) {
955 for (id = kempld_dmi_table;
956 id->matches[0].slot != DMI_NONE; id++)
957 if (strstr(id->ident, force_device_id))
958 if (id->callback && !id->callback(id))
959 break;
960 if (id->matches[0].slot == DMI_NONE)
961 return -ENODEV;
962 } else {
963 dmi_check_system(kempld_dmi_table);
964 }
965
966 return platform_driver_register(&kempld_driver);
967 }
968
kempld_exit(void)969 static void __exit kempld_exit(void)
970 {
971 if (kempld_pdev)
972 platform_device_unregister(kempld_pdev);
973
974 platform_driver_unregister(&kempld_driver);
975 }
976
977 module_init(kempld_init);
978 module_exit(kempld_exit);
979
980 MODULE_DESCRIPTION("KEM PLD Core Driver");
981 MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
982 MODULE_LICENSE("GPL");
983 MODULE_ALIAS("platform:kempld-core");
984