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[ceph.git] / ceph / src / spdk / dpdk / drivers / raw / ifpga / base / ifpga_fme.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2018 Intel Corporation
3 */
4
5 #include "ifpga_feature_dev.h"
6 #include "opae_spi.h"
7 #include "opae_intel_max10.h"
8 #include "opae_i2c.h"
9 #include "opae_at24_eeprom.h"
10
11 #define PWR_THRESHOLD_MAX 0x7F
12
13 int fme_get_prop(struct ifpga_fme_hw *fme, struct feature_prop *prop)
14 {
15 struct ifpga_feature *feature;
16
17 if (!fme)
18 return -ENOENT;
19
20 feature = get_fme_feature_by_id(fme, prop->feature_id);
21
22 if (feature && feature->ops && feature->ops->get_prop)
23 return feature->ops->get_prop(feature, prop);
24
25 return -ENOENT;
26 }
27
28 int fme_set_prop(struct ifpga_fme_hw *fme, struct feature_prop *prop)
29 {
30 struct ifpga_feature *feature;
31
32 if (!fme)
33 return -ENOENT;
34
35 feature = get_fme_feature_by_id(fme, prop->feature_id);
36
37 if (feature && feature->ops && feature->ops->set_prop)
38 return feature->ops->set_prop(feature, prop);
39
40 return -ENOENT;
41 }
42
43 int fme_set_irq(struct ifpga_fme_hw *fme, u32 feature_id, void *irq_set)
44 {
45 struct ifpga_feature *feature;
46
47 if (!fme)
48 return -ENOENT;
49
50 feature = get_fme_feature_by_id(fme, feature_id);
51
52 if (feature && feature->ops && feature->ops->set_irq)
53 return feature->ops->set_irq(feature, irq_set);
54
55 return -ENOENT;
56 }
57
58 /* fme private feature head */
59 static int fme_hdr_init(struct ifpga_feature *feature)
60 {
61 struct feature_fme_header *fme_hdr;
62
63 fme_hdr = (struct feature_fme_header *)feature->addr;
64
65 dev_info(NULL, "FME HDR Init.\n");
66 dev_info(NULL, "FME cap %llx.\n",
67 (unsigned long long)fme_hdr->capability.csr);
68
69 return 0;
70 }
71
72 static void fme_hdr_uinit(struct ifpga_feature *feature)
73 {
74 UNUSED(feature);
75
76 dev_info(NULL, "FME HDR UInit.\n");
77 }
78
79 static int fme_hdr_get_revision(struct ifpga_fme_hw *fme, u64 *revision)
80 {
81 struct feature_fme_header *fme_hdr
82 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
83 struct feature_header header;
84
85 header.csr = readq(&fme_hdr->header);
86 *revision = header.revision;
87
88 return 0;
89 }
90
91 static int fme_hdr_get_ports_num(struct ifpga_fme_hw *fme, u64 *ports_num)
92 {
93 struct feature_fme_header *fme_hdr
94 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
95 struct feature_fme_capability fme_capability;
96
97 fme_capability.csr = readq(&fme_hdr->capability);
98 *ports_num = fme_capability.num_ports;
99
100 return 0;
101 }
102
103 static int fme_hdr_get_cache_size(struct ifpga_fme_hw *fme, u64 *cache_size)
104 {
105 struct feature_fme_header *fme_hdr
106 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
107 struct feature_fme_capability fme_capability;
108
109 fme_capability.csr = readq(&fme_hdr->capability);
110 *cache_size = fme_capability.cache_size;
111
112 return 0;
113 }
114
115 static int fme_hdr_get_version(struct ifpga_fme_hw *fme, u64 *version)
116 {
117 struct feature_fme_header *fme_hdr
118 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
119 struct feature_fme_capability fme_capability;
120
121 fme_capability.csr = readq(&fme_hdr->capability);
122 *version = fme_capability.fabric_verid;
123
124 return 0;
125 }
126
127 static int fme_hdr_get_socket_id(struct ifpga_fme_hw *fme, u64 *socket_id)
128 {
129 struct feature_fme_header *fme_hdr
130 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
131 struct feature_fme_capability fme_capability;
132
133 fme_capability.csr = readq(&fme_hdr->capability);
134 *socket_id = fme_capability.socket_id;
135
136 return 0;
137 }
138
139 static int fme_hdr_get_bitstream_id(struct ifpga_fme_hw *fme,
140 u64 *bitstream_id)
141 {
142 struct feature_fme_header *fme_hdr
143 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
144
145 *bitstream_id = readq(&fme_hdr->bitstream_id);
146
147 return 0;
148 }
149
150 static int fme_hdr_get_bitstream_metadata(struct ifpga_fme_hw *fme,
151 u64 *bitstream_metadata)
152 {
153 struct feature_fme_header *fme_hdr
154 = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
155
156 *bitstream_metadata = readq(&fme_hdr->bitstream_md);
157
158 return 0;
159 }
160
161 static int
162 fme_hdr_get_prop(struct ifpga_feature *feature, struct feature_prop *prop)
163 {
164 struct ifpga_fme_hw *fme = feature->parent;
165
166 switch (prop->prop_id) {
167 case FME_HDR_PROP_REVISION:
168 return fme_hdr_get_revision(fme, &prop->data);
169 case FME_HDR_PROP_PORTS_NUM:
170 return fme_hdr_get_ports_num(fme, &prop->data);
171 case FME_HDR_PROP_CACHE_SIZE:
172 return fme_hdr_get_cache_size(fme, &prop->data);
173 case FME_HDR_PROP_VERSION:
174 return fme_hdr_get_version(fme, &prop->data);
175 case FME_HDR_PROP_SOCKET_ID:
176 return fme_hdr_get_socket_id(fme, &prop->data);
177 case FME_HDR_PROP_BITSTREAM_ID:
178 return fme_hdr_get_bitstream_id(fme, &prop->data);
179 case FME_HDR_PROP_BITSTREAM_METADATA:
180 return fme_hdr_get_bitstream_metadata(fme, &prop->data);
181 }
182
183 return -ENOENT;
184 }
185
186 struct ifpga_feature_ops fme_hdr_ops = {
187 .init = fme_hdr_init,
188 .uinit = fme_hdr_uinit,
189 .get_prop = fme_hdr_get_prop,
190 };
191
192 /* thermal management */
193 static int fme_thermal_get_threshold1(struct ifpga_fme_hw *fme, u64 *thres1)
194 {
195 struct feature_fme_thermal *thermal;
196 struct feature_fme_tmp_threshold temp_threshold;
197
198 thermal = get_fme_feature_ioaddr_by_index(fme,
199 FME_FEATURE_ID_THERMAL_MGMT);
200
201 temp_threshold.csr = readq(&thermal->threshold);
202 *thres1 = temp_threshold.tmp_thshold1;
203
204 return 0;
205 }
206
207 static int fme_thermal_set_threshold1(struct ifpga_fme_hw *fme, u64 thres1)
208 {
209 struct feature_fme_thermal *thermal;
210 struct feature_fme_header *fme_hdr;
211 struct feature_fme_tmp_threshold tmp_threshold;
212 struct feature_fme_capability fme_capability;
213
214 thermal = get_fme_feature_ioaddr_by_index(fme,
215 FME_FEATURE_ID_THERMAL_MGMT);
216 fme_hdr = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
217
218 spinlock_lock(&fme->lock);
219 tmp_threshold.csr = readq(&thermal->threshold);
220 fme_capability.csr = readq(&fme_hdr->capability);
221
222 if (fme_capability.lock_bit == 1) {
223 spinlock_unlock(&fme->lock);
224 return -EBUSY;
225 } else if (thres1 > 100) {
226 spinlock_unlock(&fme->lock);
227 return -EINVAL;
228 } else if (thres1 == 0) {
229 tmp_threshold.tmp_thshold1_enable = 0;
230 tmp_threshold.tmp_thshold1 = thres1;
231 } else {
232 tmp_threshold.tmp_thshold1_enable = 1;
233 tmp_threshold.tmp_thshold1 = thres1;
234 }
235
236 writeq(tmp_threshold.csr, &thermal->threshold);
237 spinlock_unlock(&fme->lock);
238
239 return 0;
240 }
241
242 static int fme_thermal_get_threshold2(struct ifpga_fme_hw *fme, u64 *thres2)
243 {
244 struct feature_fme_thermal *thermal;
245 struct feature_fme_tmp_threshold temp_threshold;
246
247 thermal = get_fme_feature_ioaddr_by_index(fme,
248 FME_FEATURE_ID_THERMAL_MGMT);
249
250 temp_threshold.csr = readq(&thermal->threshold);
251 *thres2 = temp_threshold.tmp_thshold2;
252
253 return 0;
254 }
255
256 static int fme_thermal_set_threshold2(struct ifpga_fme_hw *fme, u64 thres2)
257 {
258 struct feature_fme_thermal *thermal;
259 struct feature_fme_header *fme_hdr;
260 struct feature_fme_tmp_threshold tmp_threshold;
261 struct feature_fme_capability fme_capability;
262
263 thermal = get_fme_feature_ioaddr_by_index(fme,
264 FME_FEATURE_ID_THERMAL_MGMT);
265 fme_hdr = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
266
267 spinlock_lock(&fme->lock);
268 tmp_threshold.csr = readq(&thermal->threshold);
269 fme_capability.csr = readq(&fme_hdr->capability);
270
271 if (fme_capability.lock_bit == 1) {
272 spinlock_unlock(&fme->lock);
273 return -EBUSY;
274 } else if (thres2 > 100) {
275 spinlock_unlock(&fme->lock);
276 return -EINVAL;
277 } else if (thres2 == 0) {
278 tmp_threshold.tmp_thshold2_enable = 0;
279 tmp_threshold.tmp_thshold2 = thres2;
280 } else {
281 tmp_threshold.tmp_thshold2_enable = 1;
282 tmp_threshold.tmp_thshold2 = thres2;
283 }
284
285 writeq(tmp_threshold.csr, &thermal->threshold);
286 spinlock_unlock(&fme->lock);
287
288 return 0;
289 }
290
291 static int fme_thermal_get_threshold_trip(struct ifpga_fme_hw *fme,
292 u64 *thres_trip)
293 {
294 struct feature_fme_thermal *thermal;
295 struct feature_fme_tmp_threshold temp_threshold;
296
297 thermal = get_fme_feature_ioaddr_by_index(fme,
298 FME_FEATURE_ID_THERMAL_MGMT);
299
300 temp_threshold.csr = readq(&thermal->threshold);
301 *thres_trip = temp_threshold.therm_trip_thshold;
302
303 return 0;
304 }
305
306 static int fme_thermal_get_threshold1_reached(struct ifpga_fme_hw *fme,
307 u64 *thres1_reached)
308 {
309 struct feature_fme_thermal *thermal;
310 struct feature_fme_tmp_threshold temp_threshold;
311
312 thermal = get_fme_feature_ioaddr_by_index(fme,
313 FME_FEATURE_ID_THERMAL_MGMT);
314
315 temp_threshold.csr = readq(&thermal->threshold);
316 *thres1_reached = temp_threshold.thshold1_status;
317
318 return 0;
319 }
320
321 static int fme_thermal_get_threshold2_reached(struct ifpga_fme_hw *fme,
322 u64 *thres1_reached)
323 {
324 struct feature_fme_thermal *thermal;
325 struct feature_fme_tmp_threshold temp_threshold;
326
327 thermal = get_fme_feature_ioaddr_by_index(fme,
328 FME_FEATURE_ID_THERMAL_MGMT);
329
330 temp_threshold.csr = readq(&thermal->threshold);
331 *thres1_reached = temp_threshold.thshold2_status;
332
333 return 0;
334 }
335
336 static int fme_thermal_get_threshold1_policy(struct ifpga_fme_hw *fme,
337 u64 *thres1_policy)
338 {
339 struct feature_fme_thermal *thermal;
340 struct feature_fme_tmp_threshold temp_threshold;
341
342 thermal = get_fme_feature_ioaddr_by_index(fme,
343 FME_FEATURE_ID_THERMAL_MGMT);
344
345 temp_threshold.csr = readq(&thermal->threshold);
346 *thres1_policy = temp_threshold.thshold_policy;
347
348 return 0;
349 }
350
351 static int fme_thermal_set_threshold1_policy(struct ifpga_fme_hw *fme,
352 u64 thres1_policy)
353 {
354 struct feature_fme_thermal *thermal;
355 struct feature_fme_tmp_threshold tmp_threshold;
356
357 thermal = get_fme_feature_ioaddr_by_index(fme,
358 FME_FEATURE_ID_THERMAL_MGMT);
359
360 spinlock_lock(&fme->lock);
361 tmp_threshold.csr = readq(&thermal->threshold);
362
363 if (thres1_policy == 0) {
364 tmp_threshold.thshold_policy = 0;
365 } else if (thres1_policy == 1) {
366 tmp_threshold.thshold_policy = 1;
367 } else {
368 spinlock_unlock(&fme->lock);
369 return -EINVAL;
370 }
371
372 writeq(tmp_threshold.csr, &thermal->threshold);
373 spinlock_unlock(&fme->lock);
374
375 return 0;
376 }
377
378 static int fme_thermal_get_temperature(struct ifpga_fme_hw *fme, u64 *temp)
379 {
380 struct feature_fme_thermal *thermal;
381 struct feature_fme_temp_rdsensor_fmt1 temp_rdsensor_fmt1;
382
383 thermal = get_fme_feature_ioaddr_by_index(fme,
384 FME_FEATURE_ID_THERMAL_MGMT);
385
386 temp_rdsensor_fmt1.csr = readq(&thermal->rdsensor_fm1);
387 *temp = temp_rdsensor_fmt1.fpga_temp;
388
389 return 0;
390 }
391
392 static int fme_thermal_get_revision(struct ifpga_fme_hw *fme, u64 *revision)
393 {
394 struct feature_fme_thermal *fme_thermal
395 = get_fme_feature_ioaddr_by_index(fme,
396 FME_FEATURE_ID_THERMAL_MGMT);
397 struct feature_header header;
398
399 header.csr = readq(&fme_thermal->header);
400 *revision = header.revision;
401
402 return 0;
403 }
404
405 #define FME_THERMAL_CAP_NO_TMP_THRESHOLD 0x1
406
407 static int fme_thermal_mgmt_init(struct ifpga_feature *feature)
408 {
409 struct feature_fme_thermal *fme_thermal;
410 struct feature_fme_tmp_threshold_cap thermal_cap;
411
412 UNUSED(feature);
413
414 dev_info(NULL, "FME thermal mgmt Init.\n");
415
416 fme_thermal = (struct feature_fme_thermal *)feature->addr;
417 thermal_cap.csr = readq(&fme_thermal->threshold_cap);
418
419 dev_info(NULL, "FME thermal cap %llx.\n",
420 (unsigned long long)fme_thermal->threshold_cap.csr);
421
422 if (thermal_cap.tmp_thshold_disabled)
423 feature->cap |= FME_THERMAL_CAP_NO_TMP_THRESHOLD;
424
425 return 0;
426 }
427
428 static void fme_thermal_mgmt_uinit(struct ifpga_feature *feature)
429 {
430 UNUSED(feature);
431
432 dev_info(NULL, "FME thermal mgmt UInit.\n");
433 }
434
435 static int
436 fme_thermal_set_prop(struct ifpga_feature *feature, struct feature_prop *prop)
437 {
438 struct ifpga_fme_hw *fme = feature->parent;
439
440 if (feature->cap & FME_THERMAL_CAP_NO_TMP_THRESHOLD)
441 return -ENOENT;
442
443 switch (prop->prop_id) {
444 case FME_THERMAL_PROP_THRESHOLD1:
445 return fme_thermal_set_threshold1(fme, prop->data);
446 case FME_THERMAL_PROP_THRESHOLD2:
447 return fme_thermal_set_threshold2(fme, prop->data);
448 case FME_THERMAL_PROP_THRESHOLD1_POLICY:
449 return fme_thermal_set_threshold1_policy(fme, prop->data);
450 }
451
452 return -ENOENT;
453 }
454
455 static int
456 fme_thermal_get_prop(struct ifpga_feature *feature, struct feature_prop *prop)
457 {
458 struct ifpga_fme_hw *fme = feature->parent;
459
460 if (feature->cap & FME_THERMAL_CAP_NO_TMP_THRESHOLD &&
461 prop->prop_id != FME_THERMAL_PROP_TEMPERATURE &&
462 prop->prop_id != FME_THERMAL_PROP_REVISION)
463 return -ENOENT;
464
465 switch (prop->prop_id) {
466 case FME_THERMAL_PROP_THRESHOLD1:
467 return fme_thermal_get_threshold1(fme, &prop->data);
468 case FME_THERMAL_PROP_THRESHOLD2:
469 return fme_thermal_get_threshold2(fme, &prop->data);
470 case FME_THERMAL_PROP_THRESHOLD_TRIP:
471 return fme_thermal_get_threshold_trip(fme, &prop->data);
472 case FME_THERMAL_PROP_THRESHOLD1_REACHED:
473 return fme_thermal_get_threshold1_reached(fme, &prop->data);
474 case FME_THERMAL_PROP_THRESHOLD2_REACHED:
475 return fme_thermal_get_threshold2_reached(fme, &prop->data);
476 case FME_THERMAL_PROP_THRESHOLD1_POLICY:
477 return fme_thermal_get_threshold1_policy(fme, &prop->data);
478 case FME_THERMAL_PROP_TEMPERATURE:
479 return fme_thermal_get_temperature(fme, &prop->data);
480 case FME_THERMAL_PROP_REVISION:
481 return fme_thermal_get_revision(fme, &prop->data);
482 }
483
484 return -ENOENT;
485 }
486
487 struct ifpga_feature_ops fme_thermal_mgmt_ops = {
488 .init = fme_thermal_mgmt_init,
489 .uinit = fme_thermal_mgmt_uinit,
490 .get_prop = fme_thermal_get_prop,
491 .set_prop = fme_thermal_set_prop,
492 };
493
494 static int fme_pwr_get_consumed(struct ifpga_fme_hw *fme, u64 *consumed)
495 {
496 struct feature_fme_power *fme_power
497 = get_fme_feature_ioaddr_by_index(fme,
498 FME_FEATURE_ID_POWER_MGMT);
499 struct feature_fme_pm_status pm_status;
500
501 pm_status.csr = readq(&fme_power->status);
502
503 *consumed = pm_status.pwr_consumed;
504
505 return 0;
506 }
507
508 static int fme_pwr_get_threshold1(struct ifpga_fme_hw *fme, u64 *threshold)
509 {
510 struct feature_fme_power *fme_power
511 = get_fme_feature_ioaddr_by_index(fme,
512 FME_FEATURE_ID_POWER_MGMT);
513 struct feature_fme_pm_ap_threshold pm_ap_threshold;
514
515 pm_ap_threshold.csr = readq(&fme_power->threshold);
516
517 *threshold = pm_ap_threshold.threshold1;
518
519 return 0;
520 }
521
522 static int fme_pwr_set_threshold1(struct ifpga_fme_hw *fme, u64 threshold)
523 {
524 struct feature_fme_power *fme_power
525 = get_fme_feature_ioaddr_by_index(fme,
526 FME_FEATURE_ID_POWER_MGMT);
527 struct feature_fme_pm_ap_threshold pm_ap_threshold;
528
529 spinlock_lock(&fme->lock);
530 pm_ap_threshold.csr = readq(&fme_power->threshold);
531
532 if (threshold <= PWR_THRESHOLD_MAX) {
533 pm_ap_threshold.threshold1 = threshold;
534 } else {
535 spinlock_unlock(&fme->lock);
536 return -EINVAL;
537 }
538
539 writeq(pm_ap_threshold.csr, &fme_power->threshold);
540 spinlock_unlock(&fme->lock);
541
542 return 0;
543 }
544
545 static int fme_pwr_get_threshold2(struct ifpga_fme_hw *fme, u64 *threshold)
546 {
547 struct feature_fme_power *fme_power
548 = get_fme_feature_ioaddr_by_index(fme,
549 FME_FEATURE_ID_POWER_MGMT);
550 struct feature_fme_pm_ap_threshold pm_ap_threshold;
551
552 pm_ap_threshold.csr = readq(&fme_power->threshold);
553
554 *threshold = pm_ap_threshold.threshold2;
555
556 return 0;
557 }
558
559 static int fme_pwr_set_threshold2(struct ifpga_fme_hw *fme, u64 threshold)
560 {
561 struct feature_fme_power *fme_power
562 = get_fme_feature_ioaddr_by_index(fme,
563 FME_FEATURE_ID_POWER_MGMT);
564 struct feature_fme_pm_ap_threshold pm_ap_threshold;
565
566 spinlock_lock(&fme->lock);
567 pm_ap_threshold.csr = readq(&fme_power->threshold);
568
569 if (threshold <= PWR_THRESHOLD_MAX) {
570 pm_ap_threshold.threshold2 = threshold;
571 } else {
572 spinlock_unlock(&fme->lock);
573 return -EINVAL;
574 }
575
576 writeq(pm_ap_threshold.csr, &fme_power->threshold);
577 spinlock_unlock(&fme->lock);
578
579 return 0;
580 }
581
582 static int fme_pwr_get_threshold1_status(struct ifpga_fme_hw *fme,
583 u64 *threshold_status)
584 {
585 struct feature_fme_power *fme_power
586 = get_fme_feature_ioaddr_by_index(fme,
587 FME_FEATURE_ID_POWER_MGMT);
588 struct feature_fme_pm_ap_threshold pm_ap_threshold;
589
590 pm_ap_threshold.csr = readq(&fme_power->threshold);
591
592 *threshold_status = pm_ap_threshold.threshold1_status;
593
594 return 0;
595 }
596
597 static int fme_pwr_get_threshold2_status(struct ifpga_fme_hw *fme,
598 u64 *threshold_status)
599 {
600 struct feature_fme_power *fme_power
601 = get_fme_feature_ioaddr_by_index(fme,
602 FME_FEATURE_ID_POWER_MGMT);
603 struct feature_fme_pm_ap_threshold pm_ap_threshold;
604
605 pm_ap_threshold.csr = readq(&fme_power->threshold);
606
607 *threshold_status = pm_ap_threshold.threshold2_status;
608
609 return 0;
610 }
611
612 static int fme_pwr_get_rtl(struct ifpga_fme_hw *fme, u64 *rtl)
613 {
614 struct feature_fme_power *fme_power
615 = get_fme_feature_ioaddr_by_index(fme,
616 FME_FEATURE_ID_POWER_MGMT);
617 struct feature_fme_pm_status pm_status;
618
619 pm_status.csr = readq(&fme_power->status);
620
621 *rtl = pm_status.fpga_latency_report;
622
623 return 0;
624 }
625
626 static int fme_pwr_get_xeon_limit(struct ifpga_fme_hw *fme, u64 *limit)
627 {
628 struct feature_fme_power *fme_power
629 = get_fme_feature_ioaddr_by_index(fme,
630 FME_FEATURE_ID_POWER_MGMT);
631 struct feature_fme_pm_xeon_limit xeon_limit;
632
633 xeon_limit.csr = readq(&fme_power->xeon_limit);
634
635 if (!xeon_limit.enable)
636 xeon_limit.pwr_limit = 0;
637
638 *limit = xeon_limit.pwr_limit;
639
640 return 0;
641 }
642
643 static int fme_pwr_get_fpga_limit(struct ifpga_fme_hw *fme, u64 *limit)
644 {
645 struct feature_fme_power *fme_power
646 = get_fme_feature_ioaddr_by_index(fme,
647 FME_FEATURE_ID_POWER_MGMT);
648 struct feature_fme_pm_fpga_limit fpga_limit;
649
650 fpga_limit.csr = readq(&fme_power->fpga_limit);
651
652 if (!fpga_limit.enable)
653 fpga_limit.pwr_limit = 0;
654
655 *limit = fpga_limit.pwr_limit;
656
657 return 0;
658 }
659
660 static int fme_pwr_get_revision(struct ifpga_fme_hw *fme, u64 *revision)
661 {
662 struct feature_fme_power *fme_power
663 = get_fme_feature_ioaddr_by_index(fme,
664 FME_FEATURE_ID_POWER_MGMT);
665 struct feature_header header;
666
667 header.csr = readq(&fme_power->header);
668 *revision = header.revision;
669
670 return 0;
671 }
672
673 static int fme_power_mgmt_init(struct ifpga_feature *feature)
674 {
675 UNUSED(feature);
676
677 dev_info(NULL, "FME power mgmt Init.\n");
678
679 return 0;
680 }
681
682 static void fme_power_mgmt_uinit(struct ifpga_feature *feature)
683 {
684 UNUSED(feature);
685
686 dev_info(NULL, "FME power mgmt UInit.\n");
687 }
688
689 static int fme_power_mgmt_get_prop(struct ifpga_feature *feature,
690 struct feature_prop *prop)
691 {
692 struct ifpga_fme_hw *fme = feature->parent;
693
694 switch (prop->prop_id) {
695 case FME_PWR_PROP_CONSUMED:
696 return fme_pwr_get_consumed(fme, &prop->data);
697 case FME_PWR_PROP_THRESHOLD1:
698 return fme_pwr_get_threshold1(fme, &prop->data);
699 case FME_PWR_PROP_THRESHOLD2:
700 return fme_pwr_get_threshold2(fme, &prop->data);
701 case FME_PWR_PROP_THRESHOLD1_STATUS:
702 return fme_pwr_get_threshold1_status(fme, &prop->data);
703 case FME_PWR_PROP_THRESHOLD2_STATUS:
704 return fme_pwr_get_threshold2_status(fme, &prop->data);
705 case FME_PWR_PROP_RTL:
706 return fme_pwr_get_rtl(fme, &prop->data);
707 case FME_PWR_PROP_XEON_LIMIT:
708 return fme_pwr_get_xeon_limit(fme, &prop->data);
709 case FME_PWR_PROP_FPGA_LIMIT:
710 return fme_pwr_get_fpga_limit(fme, &prop->data);
711 case FME_PWR_PROP_REVISION:
712 return fme_pwr_get_revision(fme, &prop->data);
713 }
714
715 return -ENOENT;
716 }
717
718 static int fme_power_mgmt_set_prop(struct ifpga_feature *feature,
719 struct feature_prop *prop)
720 {
721 struct ifpga_fme_hw *fme = feature->parent;
722
723 switch (prop->prop_id) {
724 case FME_PWR_PROP_THRESHOLD1:
725 return fme_pwr_set_threshold1(fme, prop->data);
726 case FME_PWR_PROP_THRESHOLD2:
727 return fme_pwr_set_threshold2(fme, prop->data);
728 }
729
730 return -ENOENT;
731 }
732
733 struct ifpga_feature_ops fme_power_mgmt_ops = {
734 .init = fme_power_mgmt_init,
735 .uinit = fme_power_mgmt_uinit,
736 .get_prop = fme_power_mgmt_get_prop,
737 .set_prop = fme_power_mgmt_set_prop,
738 };
739
740 static int fme_hssi_eth_init(struct ifpga_feature *feature)
741 {
742 UNUSED(feature);
743 return 0;
744 }
745
746 static void fme_hssi_eth_uinit(struct ifpga_feature *feature)
747 {
748 UNUSED(feature);
749 }
750
751 struct ifpga_feature_ops fme_hssi_eth_ops = {
752 .init = fme_hssi_eth_init,
753 .uinit = fme_hssi_eth_uinit,
754 };
755
756 static int fme_emif_init(struct ifpga_feature *feature)
757 {
758 UNUSED(feature);
759 return 0;
760 }
761
762 static void fme_emif_uinit(struct ifpga_feature *feature)
763 {
764 UNUSED(feature);
765 }
766
767 struct ifpga_feature_ops fme_emif_ops = {
768 .init = fme_emif_init,
769 .uinit = fme_emif_uinit,
770 };
771
772 static const char *board_type_to_string(u32 type)
773 {
774 switch (type) {
775 case VC_8_10G:
776 return "VC_8x10G";
777 case VC_4_25G:
778 return "VC_4x25G";
779 case VC_2_1_25:
780 return "VC_2x1x25G";
781 case VC_4_25G_2_25G:
782 return "VC_4x25G+2x25G";
783 case VC_2_2_25G:
784 return "VC_2x2x25G";
785 }
786
787 return "unknown";
788 }
789
790 static const char *board_major_to_string(u32 major)
791 {
792 switch (major) {
793 case VISTA_CREEK:
794 return "VISTA_CREEK";
795 case RUSH_CREEK:
796 return "RUSH_CREEK";
797 case DARBY_CREEK:
798 return "DARBY_CREEK";
799 }
800
801 return "unknown";
802 }
803
804 static int board_type_to_info(u32 type,
805 struct opae_board_info *info)
806 {
807 switch (type) {
808 case VC_8_10G:
809 info->nums_of_retimer = 2;
810 info->ports_per_retimer = 4;
811 info->nums_of_fvl = 2;
812 info->ports_per_fvl = 4;
813 break;
814 case VC_4_25G:
815 info->nums_of_retimer = 1;
816 info->ports_per_retimer = 4;
817 info->nums_of_fvl = 2;
818 info->ports_per_fvl = 2;
819 break;
820 case VC_2_1_25:
821 info->nums_of_retimer = 2;
822 info->ports_per_retimer = 1;
823 info->nums_of_fvl = 1;
824 info->ports_per_fvl = 2;
825 break;
826 case VC_2_2_25G:
827 info->nums_of_retimer = 2;
828 info->ports_per_retimer = 2;
829 info->nums_of_fvl = 2;
830 info->ports_per_fvl = 2;
831 break;
832 default:
833 return -EINVAL;
834 }
835
836 return 0;
837 }
838
839 static int fme_get_board_interface(struct ifpga_fme_hw *fme)
840 {
841 struct fme_bitstream_id id;
842 struct ifpga_hw *hw;
843 u32 val;
844
845 hw = fme->parent;
846 if (!hw)
847 return -ENODEV;
848
849 if (fme_hdr_get_bitstream_id(fme, &id.id))
850 return -EINVAL;
851
852 fme->board_info.major = id.major;
853 fme->board_info.minor = id.minor;
854 fme->board_info.type = id.interface;
855 fme->board_info.fvl_bypass = id.fvl_bypass;
856 fme->board_info.mac_lightweight = id.mac_lightweight;
857 fme->board_info.lightweight = id.lightweiht;
858 fme->board_info.disaggregate = id.disagregate;
859 fme->board_info.seu = id.seu;
860 fme->board_info.ptp = id.ptp;
861
862 dev_info(fme, "found: PCI dev: %02x:%02x:%x board: %s type: %s\n",
863 hw->pci_data->bus,
864 hw->pci_data->devid,
865 hw->pci_data->function,
866 board_major_to_string(fme->board_info.major),
867 board_type_to_string(fme->board_info.type));
868
869 dev_info(fme, "support feature:\n"
870 "fvl_bypass:%s\n"
871 "mac_lightweight:%s\n"
872 "lightweight:%s\n"
873 "disaggregate:%s\n"
874 "seu:%s\n"
875 "ptp1588:%s\n",
876 check_support(fme->board_info.fvl_bypass),
877 check_support(fme->board_info.mac_lightweight),
878 check_support(fme->board_info.lightweight),
879 check_support(fme->board_info.disaggregate),
880 check_support(fme->board_info.seu),
881 check_support(fme->board_info.ptp));
882
883
884 if (board_type_to_info(fme->board_info.type, &fme->board_info))
885 return -EINVAL;
886
887 dev_info(fme, "get board info: nums_retimers %d ports_per_retimer %d nums_fvl %d ports_per_fvl %d\n",
888 fme->board_info.nums_of_retimer,
889 fme->board_info.ports_per_retimer,
890 fme->board_info.nums_of_fvl,
891 fme->board_info.ports_per_fvl);
892
893 if (max10_sys_read(fme->max10_dev, MAX10_BUILD_VER, &val))
894 return -EINVAL;
895 fme->board_info.max10_version = val & 0xffffff;
896
897 if (max10_sys_read(fme->max10_dev, NIOS2_FW_VERSION, &val))
898 return -EINVAL;
899 fme->board_info.nios_fw_version = val & 0xffffff;
900
901 dev_info(fme, "max10 version 0x%x, nios fw version 0x%x\n",
902 fme->board_info.max10_version,
903 fme->board_info.nios_fw_version);
904
905 return 0;
906 }
907
908 static int spi_self_checking(struct intel_max10_device *dev)
909 {
910 u32 val;
911 int ret;
912
913 ret = max10_sys_read(dev, MAX10_TEST_REG, &val);
914 if (ret)
915 return -EIO;
916
917 dev_info(NULL, "Read MAX10 test register 0x%x\n", val);
918
919 return 0;
920 }
921
922 static int fme_spi_init(struct ifpga_feature *feature)
923 {
924 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
925 struct altera_spi_device *spi_master;
926 struct intel_max10_device *max10;
927 int ret = 0;
928
929 dev_info(fme, "FME SPI Master (Max10) Init.\n");
930 dev_debug(fme, "FME SPI base addr %p.\n",
931 feature->addr);
932 dev_debug(fme, "spi param=0x%llx\n",
933 (unsigned long long)opae_readq(feature->addr + 0x8));
934
935 spi_master = altera_spi_alloc(feature->addr, TYPE_SPI);
936 if (!spi_master)
937 return -ENODEV;
938
939 altera_spi_init(spi_master);
940
941 max10 = intel_max10_device_probe(spi_master, 0);
942 if (!max10) {
943 ret = -ENODEV;
944 dev_err(fme, "max10 init fail\n");
945 goto spi_fail;
946 }
947
948
949 fme->max10_dev = max10;
950
951 /* SPI self test */
952 if (spi_self_checking(max10)) {
953 ret = -EIO;
954 goto max10_fail;
955 }
956
957 return ret;
958
959 max10_fail:
960 intel_max10_device_remove(fme->max10_dev);
961 spi_fail:
962 altera_spi_release(spi_master);
963 return ret;
964 }
965
966 static void fme_spi_uinit(struct ifpga_feature *feature)
967 {
968 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
969
970 if (fme->max10_dev)
971 intel_max10_device_remove(fme->max10_dev);
972 }
973
974 struct ifpga_feature_ops fme_spi_master_ops = {
975 .init = fme_spi_init,
976 .uinit = fme_spi_uinit,
977 };
978
979 static int nios_spi_wait_init_done(struct altera_spi_device *dev)
980 {
981 u32 val = 0;
982 unsigned long timeout = msecs_to_timer_cycles(10000);
983 unsigned long ticks;
984 int major_version;
985
986 if (spi_reg_read(dev, NIOS_VERSION, &val))
987 return -EIO;
988
989 major_version = (val >> NIOS_VERSION_MAJOR_SHIFT) &
990 NIOS_VERSION_MAJOR;
991 dev_debug(dev, "A10 NIOS FW version %d\n", major_version);
992
993 if (major_version >= 3) {
994 /* read NIOS_INIT to check if PKVL INIT done or not */
995 if (spi_reg_read(dev, NIOS_INIT, &val))
996 return -EIO;
997
998 /* check if PKVLs are initialized already */
999 if (val & NIOS_INIT_DONE || val & NIOS_INIT_START)
1000 goto nios_init_done;
1001
1002 /* start to config the default FEC mode */
1003 val = NIOS_INIT_START;
1004
1005 if (spi_reg_write(dev, NIOS_INIT, val))
1006 return -EIO;
1007 }
1008
1009 nios_init_done:
1010 do {
1011 if (spi_reg_read(dev, NIOS_INIT, &val))
1012 return -EIO;
1013 if (val)
1014 break;
1015
1016 ticks = rte_get_timer_cycles();
1017 if (time_after(ticks, timeout))
1018 return -ETIMEDOUT;
1019 msleep(100);
1020 } while (!val);
1021
1022 return 0;
1023 }
1024
1025 static int nios_spi_check_error(struct altera_spi_device *dev)
1026 {
1027 u32 value = 0;
1028
1029 if (spi_reg_read(dev, PKVL_A_MODE_STS, &value))
1030 return -EIO;
1031
1032 dev_debug(dev, "PKVL A Mode Status 0x%x\n", value);
1033
1034 if (value >= 0x100)
1035 return -EINVAL;
1036
1037 if (spi_reg_read(dev, PKVL_B_MODE_STS, &value))
1038 return -EIO;
1039
1040 dev_debug(dev, "PKVL B Mode Status 0x%x\n", value);
1041
1042 if (value >= 0x100)
1043 return -EINVAL;
1044
1045 return 0;
1046 }
1047
1048 static int fme_nios_spi_init(struct ifpga_feature *feature)
1049 {
1050 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
1051 struct altera_spi_device *spi_master;
1052 struct intel_max10_device *max10;
1053 struct ifpga_hw *hw;
1054 struct opae_manager *mgr;
1055 int ret = 0;
1056
1057 hw = fme->parent;
1058 if (!hw)
1059 return -ENODEV;
1060
1061 mgr = hw->adapter->mgr;
1062 if (!mgr)
1063 return -ENODEV;
1064
1065 dev_info(fme, "FME SPI Master (NIOS) Init.\n");
1066 dev_debug(fme, "FME SPI base addr %p.\n",
1067 feature->addr);
1068 dev_debug(fme, "spi param=0x%llx\n",
1069 (unsigned long long)opae_readq(feature->addr + 0x8));
1070
1071 spi_master = altera_spi_alloc(feature->addr, TYPE_NIOS_SPI);
1072 if (!spi_master)
1073 return -ENODEV;
1074
1075 /**
1076 * 1. wait A10 NIOS initial finished and
1077 * release the SPI master to Host
1078 */
1079 ret = nios_spi_wait_init_done(spi_master);
1080 if (ret != 0) {
1081 dev_err(fme, "FME NIOS_SPI init fail\n");
1082 goto release_dev;
1083 }
1084
1085 dev_info(fme, "FME NIOS_SPI initial done\n");
1086
1087 /* 2. check if error occur? */
1088 if (nios_spi_check_error(spi_master))
1089 dev_info(fme, "NIOS_SPI INIT done, but found some error\n");
1090
1091 /* 3. init the spi master*/
1092 altera_spi_init(spi_master);
1093
1094 /* init the max10 device */
1095 max10 = intel_max10_device_probe(spi_master, 0);
1096 if (!max10) {
1097 ret = -ENODEV;
1098 dev_err(fme, "max10 init fail\n");
1099 goto release_dev;
1100 }
1101
1102 max10->bus = hw->pci_data->bus;
1103
1104 fme_get_board_interface(fme);
1105
1106 fme->max10_dev = max10;
1107 mgr->sensor_list = &max10->opae_sensor_list;
1108
1109 /* SPI self test */
1110 if (spi_self_checking(max10))
1111 goto spi_fail;
1112
1113 return ret;
1114
1115 spi_fail:
1116 intel_max10_device_remove(fme->max10_dev);
1117 release_dev:
1118 altera_spi_release(spi_master);
1119 return -ENODEV;
1120 }
1121
1122 static void fme_nios_spi_uinit(struct ifpga_feature *feature)
1123 {
1124 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
1125
1126 if (fme->max10_dev)
1127 intel_max10_device_remove(fme->max10_dev);
1128 }
1129
1130 struct ifpga_feature_ops fme_nios_spi_master_ops = {
1131 .init = fme_nios_spi_init,
1132 .uinit = fme_nios_spi_uinit,
1133 };
1134
1135 static int i2c_mac_rom_test(struct altera_i2c_dev *dev)
1136 {
1137 char buf[20];
1138 int ret;
1139 char read_buf[20] = {0,};
1140 const char *string = "1a2b3c4d5e";
1141
1142 opae_memcpy(buf, string, strlen(string));
1143
1144 ret = at24_eeprom_write(dev, AT24512_SLAVE_ADDR, 0,
1145 (u8 *)buf, strlen(string));
1146 if (ret < 0) {
1147 dev_err(NULL, "write i2c error:%d\n", ret);
1148 return ret;
1149 }
1150
1151 ret = at24_eeprom_read(dev, AT24512_SLAVE_ADDR, 0,
1152 (u8 *)read_buf, strlen(string));
1153 if (ret < 0) {
1154 dev_err(NULL, "read i2c error:%d\n", ret);
1155 return ret;
1156 }
1157
1158 if (memcmp(buf, read_buf, strlen(string))) {
1159 dev_err(NULL, "%s test fail!\n", __func__);
1160 return -EFAULT;
1161 }
1162
1163 dev_info(NULL, "%s test successful\n", __func__);
1164
1165 return 0;
1166 }
1167
1168 static int fme_i2c_init(struct ifpga_feature *feature)
1169 {
1170 struct feature_fme_i2c *i2c;
1171 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
1172
1173 i2c = (struct feature_fme_i2c *)feature->addr;
1174
1175 dev_info(NULL, "FME I2C Master Init.\n");
1176
1177 fme->i2c_master = altera_i2c_probe(i2c);
1178 if (!fme->i2c_master)
1179 return -ENODEV;
1180
1181 /* MAC ROM self test */
1182 i2c_mac_rom_test(fme->i2c_master);
1183
1184 return 0;
1185 }
1186
1187 static void fme_i2c_uninit(struct ifpga_feature *feature)
1188 {
1189 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
1190
1191 altera_i2c_remove(fme->i2c_master);
1192 }
1193
1194 struct ifpga_feature_ops fme_i2c_master_ops = {
1195 .init = fme_i2c_init,
1196 .uinit = fme_i2c_uninit,
1197 };
1198
1199 static int fme_eth_group_init(struct ifpga_feature *feature)
1200 {
1201 struct ifpga_fme_hw *fme = (struct ifpga_fme_hw *)feature->parent;
1202 struct eth_group_device *dev;
1203
1204 dev = (struct eth_group_device *)eth_group_probe(feature->addr);
1205 if (!dev)
1206 return -ENODEV;
1207
1208 fme->eth_dev[dev->group_id] = dev;
1209
1210 fme->eth_group_region[dev->group_id].addr =
1211 feature->addr;
1212 fme->eth_group_region[dev->group_id].phys_addr =
1213 feature->phys_addr;
1214 fme->eth_group_region[dev->group_id].len =
1215 feature->size;
1216
1217 fme->nums_eth_dev++;
1218
1219 dev_info(NULL, "FME PHY Group %d Init.\n", dev->group_id);
1220 dev_info(NULL, "found %d eth group, addr %p phys_addr 0x%llx len %u\n",
1221 dev->group_id, feature->addr,
1222 (unsigned long long)feature->phys_addr,
1223 feature->size);
1224
1225 return 0;
1226 }
1227
1228 static void fme_eth_group_uinit(struct ifpga_feature *feature)
1229 {
1230 UNUSED(feature);
1231 }
1232
1233 struct ifpga_feature_ops fme_eth_group_ops = {
1234 .init = fme_eth_group_init,
1235 .uinit = fme_eth_group_uinit,
1236 };
1237
1238 int fme_mgr_read_mac_rom(struct ifpga_fme_hw *fme, int offset,
1239 void *buf, int size)
1240 {
1241 struct altera_i2c_dev *dev;
1242
1243 dev = fme->i2c_master;
1244 if (!dev)
1245 return -ENODEV;
1246
1247 return at24_eeprom_read(dev, AT24512_SLAVE_ADDR, offset, buf, size);
1248 }
1249
1250 int fme_mgr_write_mac_rom(struct ifpga_fme_hw *fme, int offset,
1251 void *buf, int size)
1252 {
1253 struct altera_i2c_dev *dev;
1254
1255 dev = fme->i2c_master;
1256 if (!dev)
1257 return -ENODEV;
1258
1259 return at24_eeprom_write(dev, AT24512_SLAVE_ADDR, offset, buf, size);
1260 }
1261
1262 static struct eth_group_device *get_eth_group_dev(struct ifpga_fme_hw *fme,
1263 u8 group_id)
1264 {
1265 struct eth_group_device *dev;
1266
1267 if (group_id > (MAX_ETH_GROUP_DEVICES - 1))
1268 return NULL;
1269
1270 dev = (struct eth_group_device *)fme->eth_dev[group_id];
1271 if (!dev)
1272 return NULL;
1273
1274 if (dev->status != ETH_GROUP_DEV_ATTACHED)
1275 return NULL;
1276
1277 return dev;
1278 }
1279
1280 int fme_mgr_get_eth_group_nums(struct ifpga_fme_hw *fme)
1281 {
1282 return fme->nums_eth_dev;
1283 }
1284
1285 int fme_mgr_get_eth_group_info(struct ifpga_fme_hw *fme,
1286 u8 group_id, struct opae_eth_group_info *info)
1287 {
1288 struct eth_group_device *dev;
1289
1290 dev = get_eth_group_dev(fme, group_id);
1291 if (!dev)
1292 return -ENODEV;
1293
1294 info->group_id = group_id;
1295 info->speed = dev->speed;
1296 info->nums_of_mac = dev->mac_num;
1297 info->nums_of_phy = dev->phy_num;
1298
1299 return 0;
1300 }
1301
1302 int fme_mgr_eth_group_read_reg(struct ifpga_fme_hw *fme, u8 group_id,
1303 u8 type, u8 index, u16 addr, u32 *data)
1304 {
1305 struct eth_group_device *dev;
1306
1307 dev = get_eth_group_dev(fme, group_id);
1308 if (!dev)
1309 return -ENODEV;
1310
1311 return eth_group_read_reg(dev, type, index, addr, data);
1312 }
1313
1314 int fme_mgr_eth_group_write_reg(struct ifpga_fme_hw *fme, u8 group_id,
1315 u8 type, u8 index, u16 addr, u32 data)
1316 {
1317 struct eth_group_device *dev;
1318
1319 dev = get_eth_group_dev(fme, group_id);
1320 if (!dev)
1321 return -ENODEV;
1322
1323 return eth_group_write_reg(dev, type, index, addr, data);
1324 }
1325
1326 static int fme_get_eth_group_speed(struct ifpga_fme_hw *fme,
1327 u8 group_id)
1328 {
1329 struct eth_group_device *dev;
1330
1331 dev = get_eth_group_dev(fme, group_id);
1332 if (!dev)
1333 return -ENODEV;
1334
1335 return dev->speed;
1336 }
1337
1338 int fme_mgr_get_retimer_info(struct ifpga_fme_hw *fme,
1339 struct opae_retimer_info *info)
1340 {
1341 struct intel_max10_device *dev;
1342
1343 dev = (struct intel_max10_device *)fme->max10_dev;
1344 if (!dev)
1345 return -ENODEV;
1346
1347 info->nums_retimer = fme->board_info.nums_of_retimer;
1348 info->ports_per_retimer = fme->board_info.ports_per_retimer;
1349 info->nums_fvl = fme->board_info.nums_of_fvl;
1350 info->ports_per_fvl = fme->board_info.ports_per_fvl;
1351
1352 /* The speed of PKVL is identical the eth group's speed */
1353 info->support_speed = fme_get_eth_group_speed(fme,
1354 LINE_SIDE_GROUP_ID);
1355
1356 return 0;
1357 }
1358
1359 int fme_mgr_get_retimer_status(struct ifpga_fme_hw *fme,
1360 struct opae_retimer_status *status)
1361 {
1362 struct intel_max10_device *dev;
1363 unsigned int val;
1364
1365 dev = (struct intel_max10_device *)fme->max10_dev;
1366 if (!dev)
1367 return -ENODEV;
1368
1369 if (max10_sys_read(dev, PKVL_LINK_STATUS, &val)) {
1370 dev_err(dev, "%s: read pkvl status fail\n", __func__);
1371 return -EINVAL;
1372 }
1373
1374 /* The speed of PKVL is identical the eth group's speed */
1375 status->speed = fme_get_eth_group_speed(fme,
1376 LINE_SIDE_GROUP_ID);
1377
1378 status->line_link_bitmap = val;
1379
1380 dev_debug(dev, "get retimer status: speed:%d. line_link_bitmap:0x%x\n",
1381 status->speed,
1382 status->line_link_bitmap);
1383
1384 return 0;
1385 }
1386
1387 int fme_mgr_get_sensor_value(struct ifpga_fme_hw *fme,
1388 struct opae_sensor_info *sensor,
1389 unsigned int *value)
1390 {
1391 struct intel_max10_device *dev;
1392
1393 dev = (struct intel_max10_device *)fme->max10_dev;
1394 if (!dev)
1395 return -ENODEV;
1396
1397 if (max10_sys_read(dev, sensor->value_reg, value)) {
1398 dev_err(dev, "%s: read sensor value register 0x%x fail\n",
1399 __func__, sensor->value_reg);
1400 return -EINVAL;
1401 }
1402
1403 *value *= sensor->multiplier;
1404
1405 return 0;
1406 }