aboutsummaryrefslogtreecommitdiff
path: root/drivers/hwmon/intel-m10-bmc-hwmon.c
blob: 6e82f7200d1cc54be282a90248f1ef10706c2d74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
// SPDX-License-Identifier: GPL-2.0
/*
 * Intel MAX 10 BMC HWMON Driver
 *
 * Copyright (C) 2018-2020 Intel Corporation. All rights reserved.
 *
 */
#include <linux/device.h>
#include <linux/hwmon.h>
#include <linux/mfd/intel-m10-bmc.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>

struct m10bmc_sdata {
	unsigned int reg_input;
	unsigned int reg_max;
	unsigned int reg_crit;
	unsigned int reg_hyst;
	unsigned int reg_min;
	unsigned int multiplier;
	const char *label;
};

struct m10bmc_hwmon_board_data {
	const struct m10bmc_sdata *tables[hwmon_max];
	const struct hwmon_channel_info **hinfo;
};

struct m10bmc_hwmon {
	struct device *dev;
	struct hwmon_chip_info chip;
	char *hw_name;
	struct intel_m10bmc *m10bmc;
	const struct m10bmc_hwmon_board_data *bdata;
};

static const struct m10bmc_sdata n3000bmc_temp_tbl[] = {
	{ 0x100, 0x104, 0x108, 0x10c, 0x0, 500, "Board Temperature" },
	{ 0x110, 0x114, 0x118, 0x0, 0x0, 500, "FPGA Die Temperature" },
	{ 0x11c, 0x124, 0x120, 0x0, 0x0, 500, "QSFP0 Temperature" },
	{ 0x12c, 0x134, 0x130, 0x0, 0x0, 500, "QSFP1 Temperature" },
	{ 0x168, 0x0, 0x0, 0x0, 0x0, 500, "Retimer A Temperature" },
	{ 0x16c, 0x0, 0x0, 0x0, 0x0, 500, "Retimer A SerDes Temperature" },
	{ 0x170, 0x0, 0x0, 0x0, 0x0, 500, "Retimer B Temperature" },
	{ 0x174, 0x0, 0x0, 0x0, 0x0, 500, "Retimer B SerDes Temperature" },
};

static const struct m10bmc_sdata n3000bmc_in_tbl[] = {
	{ 0x128, 0x0, 0x0, 0x0, 0x0, 1, "QSFP0 Supply Voltage" },
	{ 0x138, 0x0, 0x0, 0x0, 0x0, 1, "QSFP1 Supply Voltage" },
	{ 0x13c, 0x0, 0x0, 0x0, 0x0, 1, "FPGA Core Voltage" },
	{ 0x144, 0x0, 0x0, 0x0, 0x0, 1, "12V Backplane Voltage" },
	{ 0x14c, 0x0, 0x0, 0x0, 0x0, 1, "1.2V Voltage" },
	{ 0x150, 0x0, 0x0, 0x0, 0x0, 1, "12V AUX Voltage" },
	{ 0x158, 0x0, 0x0, 0x0, 0x0, 1, "1.8V Voltage" },
	{ 0x15c, 0x0, 0x0, 0x0, 0x0, 1, "3.3V Voltage" },
};

static const struct m10bmc_sdata n3000bmc_curr_tbl[] = {
	{ 0x140, 0x0, 0x0, 0x0, 0x0, 1, "FPGA Core Current" },
	{ 0x148, 0x0, 0x0, 0x0, 0x0, 1, "12V Backplane Current" },
	{ 0x154, 0x0, 0x0, 0x0, 0x0, 1, "12V AUX Current" },
};

static const struct m10bmc_sdata n3000bmc_power_tbl[] = {
	{ 0x160, 0x0, 0x0, 0x0, 0x0, 1000, "Board Power" },
};

static const struct hwmon_channel_info *n3000bmc_hinfo[] = {
	HWMON_CHANNEL_INFO(temp,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL),
	HWMON_CHANNEL_INFO(in,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL),
	HWMON_CHANNEL_INFO(curr,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL),
	HWMON_CHANNEL_INFO(power,
			   HWMON_P_INPUT | HWMON_P_LABEL),
	NULL
};

static const struct m10bmc_sdata d5005bmc_temp_tbl[] = {
	{ 0x100, 0x104, 0x108, 0x10c, 0x0, 500, "Board Inlet Air Temperature" },
	{ 0x110, 0x114, 0x118, 0x0, 0x0, 500, "FPGA Core Temperature" },
	{ 0x11c, 0x120, 0x124, 0x128, 0x0, 500, "Board Exhaust Air Temperature" },
	{ 0x12c, 0x130, 0x134, 0x0, 0x0, 500, "FPGA Transceiver Temperature" },
	{ 0x138, 0x13c, 0x140, 0x144, 0x0, 500, "RDIMM0 Temperature" },
	{ 0x148, 0x14c, 0x150, 0x154, 0x0, 500, "RDIMM1 Temperature" },
	{ 0x158, 0x15c, 0x160, 0x164, 0x0, 500, "RDIMM2 Temperature" },
	{ 0x168, 0x16c, 0x170, 0x174, 0x0, 500, "RDIMM3 Temperature" },
	{ 0x178, 0x17c, 0x180, 0x0, 0x0, 500, "QSFP0 Temperature" },
	{ 0x188, 0x18c, 0x190, 0x0, 0x0, 500, "QSFP1 Temperature" },
	{ 0x1a0, 0x1a4, 0x1a8, 0x0, 0x0, 500, "3.3v Temperature" },
	{ 0x1bc, 0x1c0, 0x1c4, 0x0, 0x0, 500, "VCCERAM Temperature" },
	{ 0x1d8, 0x1dc, 0x1e0, 0x0, 0x0, 500, "VCCR Temperature" },
	{ 0x1f4, 0x1f8, 0x1fc, 0x0, 0x0, 500, "VCCT Temperature" },
	{ 0x210, 0x214, 0x218, 0x0, 0x0, 500, "1.8v Temperature" },
	{ 0x22c, 0x230, 0x234, 0x0, 0x0, 500, "12v Backplane Temperature" },
	{ 0x248, 0x24c, 0x250, 0x0, 0x0, 500, "12v AUX Temperature" },
};

static const struct m10bmc_sdata d5005bmc_in_tbl[] = {
	{ 0x184, 0x0, 0x0, 0x0, 0x0, 1, "QSFP0 Supply Voltage" },
	{ 0x194, 0x0, 0x0, 0x0, 0x0, 1, "QSFP1 Supply Voltage" },
	{ 0x198, 0x0, 0x0, 0x0, 0x0, 1, "FPGA Core Voltage" },
	{ 0x1ac, 0x1b0, 0x1b4, 0x0, 0x0, 1, "3.3v Voltage" },
	{ 0x1c8, 0x1cc, 0x1d0, 0x0, 0x0, 1, "VCCERAM Voltage" },
	{ 0x1e4, 0x1e8, 0x1ec, 0x0, 0x0, 1, "VCCR Voltage" },
	{ 0x200, 0x204, 0x208, 0x0, 0x0, 1, "VCCT Voltage" },
	{ 0x21c, 0x220, 0x224, 0x0, 0x0, 1, "1.8v Voltage" },
	{ 0x238, 0x0, 0x0, 0x0, 0x23c, 1, "12v Backplane Voltage" },
	{ 0x254, 0x0, 0x0, 0x0, 0x258, 1, "12v AUX Voltage" },
};

static const struct m10bmc_sdata d5005bmc_curr_tbl[] = {
	{ 0x19c, 0x0, 0x0, 0x0, 0x0, 1, "FPGA Core Current" },
	{ 0x1b8, 0x0, 0x0, 0x0, 0x0, 1, "3.3v Current" },
	{ 0x1d4, 0x0, 0x0, 0x0, 0x0, 1, "VCCERAM Current" },
	{ 0x1f0, 0x0, 0x0, 0x0, 0x0, 1, "VCCR Current" },
	{ 0x20c, 0x0, 0x0, 0x0, 0x0, 1, "VCCT Current" },
	{ 0x228, 0x0, 0x0, 0x0, 0x0, 1, "1.8v Current" },
	{ 0x240, 0x244, 0x0, 0x0, 0x0, 1, "12v Backplane Current" },
	{ 0x25c, 0x260, 0x0, 0x0, 0x0, 1, "12v AUX Current" },
};

static const struct m10bmc_hwmon_board_data n3000bmc_hwmon_bdata = {
	.tables = {
		[hwmon_temp] = n3000bmc_temp_tbl,
		[hwmon_in] = n3000bmc_in_tbl,
		[hwmon_curr] = n3000bmc_curr_tbl,
		[hwmon_power] = n3000bmc_power_tbl,
	},

	.hinfo = n3000bmc_hinfo,
};

static const struct hwmon_channel_info *d5005bmc_hinfo[] = {
	HWMON_CHANNEL_INFO(temp,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST |
			   HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT |
			   HWMON_T_LABEL),
	HWMON_CHANNEL_INFO(in,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MAX | HWMON_I_CRIT |
			   HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MAX | HWMON_I_CRIT |
			   HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MAX | HWMON_I_CRIT |
			   HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MAX | HWMON_I_CRIT |
			   HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MAX | HWMON_I_CRIT |
			   HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MIN | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_MIN | HWMON_I_LABEL),
	HWMON_CHANNEL_INFO(curr,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_MAX | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_MAX | HWMON_C_LABEL),
	NULL
};

static const struct m10bmc_hwmon_board_data d5005bmc_hwmon_bdata = {
	.tables = {
		[hwmon_temp] = d5005bmc_temp_tbl,
		[hwmon_in] = d5005bmc_in_tbl,
		[hwmon_curr] = d5005bmc_curr_tbl,
	},

	.hinfo = d5005bmc_hinfo,
};

static const struct m10bmc_sdata n5010bmc_temp_tbl[] = {
	{ 0x100, 0x0, 0x104, 0x0, 0x0, 1000, "Board Local Temperature" },
	{ 0x108, 0x0, 0x10c, 0x0, 0x0, 1000, "FPGA 1 Temperature" },
	{ 0x110, 0x0, 0x114, 0x0, 0x0, 1000, "FPGA 2 Temperature" },
	{ 0x118, 0x0, 0x0, 0x0, 0x0, 1000, "Card Top Temperature" },
	{ 0x11c, 0x0, 0x0, 0x0, 0x0, 1000, "Card Bottom Temperature" },
	{ 0x128, 0x0, 0x0, 0x0, 0x0, 1000, "FPGA 1.2V Temperature" },
	{ 0x134, 0x0, 0x0, 0x0, 0x0, 1000, "FPGA 5V Temperature" },
	{ 0x140, 0x0, 0x0, 0x0, 0x0, 1000, "FPGA 0.9V Temperature" },
	{ 0x14c, 0x0, 0x0, 0x0, 0x0, 1000, "FPGA 0.85V Temperature" },
	{ 0x158, 0x0, 0x0, 0x0, 0x0, 1000, "AUX 12V Temperature" },
	{ 0x164, 0x0, 0x0, 0x0, 0x0, 1000, "Backplane 12V Temperature" },
	{ 0x1a8, 0x0, 0x0, 0x0, 0x0, 1000, "QSFP28-1 Temperature" },
	{ 0x1ac, 0x0, 0x0, 0x0, 0x0, 1000, "QSFP28-2 Temperature" },
	{ 0x1b0, 0x0, 0x0, 0x0, 0x0, 1000, "QSFP28-3 Temperature" },
	{ 0x1b4, 0x0, 0x0, 0x0, 0x0, 1000, "QSFP28-4 Temperature" },
	{ 0x1b8, 0x0, 0x0, 0x0, 0x0, 1000, "CVL1 Internal Temperature" },
	{ 0x1bc, 0x0, 0x0, 0x0, 0x0, 1000, "CVL2 Internal Temperature" },
};

static const struct m10bmc_sdata n5010bmc_in_tbl[] = {
	{ 0x120, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 1.2V Voltage" },
	{ 0x12c, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 5V Voltage" },
	{ 0x138, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 0.9V Voltage" },
	{ 0x144, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 0.85V Voltage" },
	{ 0x150, 0x0, 0x0, 0x0, 0x0, 1, "AUX 12V Voltage" },
	{ 0x15c, 0x0, 0x0, 0x0, 0x0, 1, "Backplane 12V Voltage" },
	{ 0x16c, 0x0, 0x0, 0x0, 0x0, 1, "DDR4 1.2V Voltage" },
	{ 0x17c, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 1.8V Voltage" },
	{ 0x184, 0x0, 0x0, 0x0, 0x0, 1, "QDR 1.3V Voltage" },
	{ 0x18c, 0x0, 0x0, 0x0, 0x0, 1, "CVL1 0.8V Voltage" },
	{ 0x194, 0x0, 0x0, 0x0, 0x0, 1, "CVL1 1.05V Voltage" },
	{ 0x19c, 0x0, 0x0, 0x0, 0x0, 1, "CVL2 1.05V Voltage" },
	{ 0x1a4, 0x0, 0x0, 0x0, 0x0, 1, "CVL2 0.8V Voltage" },
};

static const struct m10bmc_sdata n5010bmc_curr_tbl[] = {
	{ 0x124, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 1.2V Current" },
	{ 0x130, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 5V Current" },
	{ 0x13c, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 0.9V Current" },
	{ 0x148, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 0.85V Current" },
	{ 0x154, 0x0, 0x0, 0x0, 0x0, 1, "AUX 12V Current" },
	{ 0x160, 0x0, 0x0, 0x0, 0x0, 1, "Backplane 12V Current" },
	{ 0x168, 0x0, 0x0, 0x0, 0x0, 1, "DDR4 1.2V Current" },
	{ 0x178, 0x0, 0x0, 0x0, 0x0, 1, "FPGA 1.8V Current" },
	{ 0x180, 0x0, 0x0, 0x0, 0x0, 1, "QDR 1.3V Current" },
	{ 0x188, 0x0, 0x0, 0x0, 0x0, 1, "CVL1 0.8V Current" },
	{ 0x190, 0x0, 0x0, 0x0, 0x0, 1, "CVL1 1.05V Current" },
	{ 0x198, 0x0, 0x0, 0x0, 0x0, 1, "CVL2 1.05V Current" },
	{ 0x1a0, 0x0, 0x0, 0x0, 0x0, 1, "CVL2 0.8V Current" },
};

static const struct hwmon_channel_info *n5010bmc_hinfo[] = {
	HWMON_CHANNEL_INFO(temp,
			   HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL,
			   HWMON_T_INPUT | HWMON_T_LABEL),
	HWMON_CHANNEL_INFO(in,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL,
			   HWMON_I_INPUT | HWMON_I_LABEL),
	HWMON_CHANNEL_INFO(curr,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL,
			   HWMON_C_INPUT | HWMON_C_LABEL),
	NULL
};

static const struct m10bmc_hwmon_board_data n5010bmc_hwmon_bdata = {
	.tables = {
		[hwmon_temp] = n5010bmc_temp_tbl,
		[hwmon_in] = n5010bmc_in_tbl,
		[hwmon_curr] = n5010bmc_curr_tbl,
	},

	.hinfo = n5010bmc_hinfo,
};

static umode_t
m10bmc_hwmon_is_visible(const void *data, enum hwmon_sensor_types type,
			u32 attr, int channel)
{
	return 0444;
}

static const struct m10bmc_sdata *
find_sensor_data(struct m10bmc_hwmon *hw, enum hwmon_sensor_types type,
		 int channel)
{
	const struct m10bmc_sdata *tbl;

	tbl = hw->bdata->tables[type];
	if (!tbl)
		return ERR_PTR(-EOPNOTSUPP);

	return &tbl[channel];
}

static int do_sensor_read(struct m10bmc_hwmon *hw,
			  const struct m10bmc_sdata *data,
			  unsigned int regoff, long *val)
{
	unsigned int regval;
	int ret;

	ret = m10bmc_sys_read(hw->m10bmc, regoff, &regval);
	if (ret)
		return ret;

	/*
	 * BMC Firmware will return 0xdeadbeef if the sensor value is invalid
	 * at that time. This usually happens on sensor channels which connect
	 * to external pluggable modules, e.g. QSFP temperature and voltage.
	 * When the QSFP is unplugged from cage, driver will get 0xdeadbeef
	 * from their registers.
	 */
	if (regval == 0xdeadbeef)
		return -ENODATA;

	*val = regval * data->multiplier;

	return 0;
}

static int m10bmc_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
			     u32 attr, int channel, long *val)
{
	struct m10bmc_hwmon *hw = dev_get_drvdata(dev);
	unsigned int reg = 0, reg_hyst = 0;
	const struct m10bmc_sdata *data;
	long hyst, value;
	int ret;

	data = find_sensor_data(hw, type, channel);
	if (IS_ERR(data))
		return PTR_ERR(data);

	switch (type) {
	case hwmon_temp:
		switch (attr) {
		case hwmon_temp_input:
			reg = data->reg_input;
			break;
		case hwmon_temp_max_hyst:
			reg_hyst = data->reg_hyst;
			fallthrough;
		case hwmon_temp_max:
			reg = data->reg_max;
			break;
		case hwmon_temp_crit_hyst:
			reg_hyst = data->reg_hyst;
			fallthrough;
		case hwmon_temp_crit:
			reg = data->reg_crit;
			break;
		default:
			return -EOPNOTSUPP;
		}
		break;
	case hwmon_in:
		switch (attr) {
		case hwmon_in_input:
			reg = data->reg_input;
			break;
		case hwmon_in_max:
			reg = data->reg_max;
			break;
		case hwmon_in_crit:
			reg = data->reg_crit;
			break;
		case hwmon_in_min:
			reg = data->reg_min;
			break;
		default:
			return -EOPNOTSUPP;
		}
		break;
	case hwmon_curr:
		switch (attr) {
		case hwmon_curr_input:
			reg = data->reg_input;
			break;
		case hwmon_curr_max:
			reg = data->reg_max;
			break;
		case hwmon_curr_crit:
			reg = data->reg_crit;
			break;
		default:
			return -EOPNOTSUPP;
		}
		break;
	case hwmon_power:
		switch (attr) {
		case hwmon_power_input:
			reg = data->reg_input;
			break;
		default:
			return -EOPNOTSUPP;
		}
		break;
	default:
		return -EOPNOTSUPP;
	}

	if (!reg)
		return -EOPNOTSUPP;

	ret = do_sensor_read(hw, data, reg, &value);
	if (ret)
		return ret;

	if (reg_hyst) {
		ret = do_sensor_read(hw, data, reg_hyst, &hyst);
		if (ret)
			return ret;

		value -= hyst;
	}

	*val = value;

	return 0;
}

static int m10bmc_hwmon_read_string(struct device *dev,
				    enum hwmon_sensor_types type,
				    u32 attr, int channel, const char **str)
{
	struct m10bmc_hwmon *hw = dev_get_drvdata(dev);
	const struct m10bmc_sdata *data;

	data = find_sensor_data(hw, type, channel);
	if (IS_ERR(data))
		return PTR_ERR(data);

	*str = data->label;

	return 0;
}

static const struct hwmon_ops m10bmc_hwmon_ops = {
	.is_visible = m10bmc_hwmon_is_visible,
	.read = m10bmc_hwmon_read,
	.read_string = m10bmc_hwmon_read_string,
};

static int m10bmc_hwmon_probe(struct platform_device *pdev)
{
	const struct platform_device_id *id = platform_get_device_id(pdev);
	struct intel_m10bmc *m10bmc = dev_get_drvdata(pdev->dev.parent);
	struct device *hwmon_dev, *dev = &pdev->dev;
	struct m10bmc_hwmon *hw;

	hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL);
	if (!hw)
		return -ENOMEM;

	hw->dev = dev;
	hw->m10bmc = m10bmc;
	hw->bdata = (const struct m10bmc_hwmon_board_data *)id->driver_data;

	hw->chip.info = hw->bdata->hinfo;
	hw->chip.ops = &m10bmc_hwmon_ops;

	hw->hw_name = devm_hwmon_sanitize_name(dev, id->name);
	if (IS_ERR(hw->hw_name))
		return PTR_ERR(hw->hw_name);

	hwmon_dev = devm_hwmon_device_register_with_info(dev, hw->hw_name,
							 hw, &hw->chip, NULL);
	return PTR_ERR_OR_ZERO(hwmon_dev);
}

static const struct platform_device_id intel_m10bmc_hwmon_ids[] = {
	{
		.name = "n3000bmc-hwmon",
		.driver_data = (unsigned long)&n3000bmc_hwmon_bdata,
	},
	{
		.name = "d5005bmc-hwmon",
		.driver_data = (unsigned long)&d5005bmc_hwmon_bdata,
	},
	{
		.name = "n5010bmc-hwmon",
		.driver_data = (unsigned long)&n5010bmc_hwmon_bdata,
	},
	{ }
};

static struct platform_driver intel_m10bmc_hwmon_driver = {
	.probe = m10bmc_hwmon_probe,
	.driver = {
		.name = "intel-m10-bmc-hwmon",
	},
	.id_table = intel_m10bmc_hwmon_ids,
};
module_platform_driver(intel_m10bmc_hwmon_driver);

MODULE_DEVICE_TABLE(platform, intel_m10bmc_hwmon_ids);
MODULE_AUTHOR("Intel Corporation");
MODULE_DESCRIPTION("Intel MAX 10 BMC hardware monitor");
MODULE_LICENSE("GPL");