summaryrefslogtreecommitdiff
path: root/drivers/soc/mediatek/mtk-scpsys.c
blob: f669d3754627daddc9619214150aa4ff00b5b963 (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
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2015 Pengutronix, Sascha Hauer <kernel@pengutronix.de>
 */
#include <linux/clk.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/mfd/syscon.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/regulator/consumer.h>
#include <linux/soc/mediatek/infracfg.h>

#include <dt-bindings/power/mt2701-power.h>
#include <dt-bindings/power/mt2712-power.h>
#include <dt-bindings/power/mt6797-power.h>
#include <dt-bindings/power/mt7622-power.h>
#include <dt-bindings/power/mt7623a-power.h>
#include <dt-bindings/power/mt8173-power.h>

#define MTK_POLL_DELAY_US   10
#define MTK_POLL_TIMEOUT    USEC_PER_SEC

#define MTK_SCPD_ACTIVE_WAKEUP		BIT(0)
#define MTK_SCPD_FWAIT_SRAM		BIT(1)
#define MTK_SCPD_CAPS(_scpd, _x)	((_scpd)->data->caps & (_x))

#define SPM_VDE_PWR_CON			0x0210
#define SPM_MFG_PWR_CON			0x0214
#define SPM_VEN_PWR_CON			0x0230
#define SPM_ISP_PWR_CON			0x0238
#define SPM_DIS_PWR_CON			0x023c
#define SPM_CONN_PWR_CON		0x0280
#define SPM_VEN2_PWR_CON		0x0298
#define SPM_AUDIO_PWR_CON		0x029c	/* MT8173, MT2712 */
#define SPM_BDP_PWR_CON			0x029c	/* MT2701 */
#define SPM_ETH_PWR_CON			0x02a0
#define SPM_HIF_PWR_CON			0x02a4
#define SPM_IFR_MSC_PWR_CON		0x02a8
#define SPM_MFG_2D_PWR_CON		0x02c0
#define SPM_MFG_ASYNC_PWR_CON		0x02c4
#define SPM_USB_PWR_CON			0x02cc
#define SPM_USB2_PWR_CON		0x02d4	/* MT2712 */
#define SPM_ETHSYS_PWR_CON		0x02e0	/* MT7622 */
#define SPM_HIF0_PWR_CON		0x02e4	/* MT7622 */
#define SPM_HIF1_PWR_CON		0x02e8	/* MT7622 */
#define SPM_WB_PWR_CON			0x02ec	/* MT7622 */

#define SPM_PWR_STATUS			0x060c
#define SPM_PWR_STATUS_2ND		0x0610

#define PWR_RST_B_BIT			BIT(0)
#define PWR_ISO_BIT			BIT(1)
#define PWR_ON_BIT			BIT(2)
#define PWR_ON_2ND_BIT			BIT(3)
#define PWR_CLK_DIS_BIT			BIT(4)

#define PWR_STATUS_CONN			BIT(1)
#define PWR_STATUS_DISP			BIT(3)
#define PWR_STATUS_MFG			BIT(4)
#define PWR_STATUS_ISP			BIT(5)
#define PWR_STATUS_VDEC			BIT(7)
#define PWR_STATUS_BDP			BIT(14)
#define PWR_STATUS_ETH			BIT(15)
#define PWR_STATUS_HIF			BIT(16)
#define PWR_STATUS_IFR_MSC		BIT(17)
#define PWR_STATUS_USB2			BIT(19)	/* MT2712 */
#define PWR_STATUS_VENC_LT		BIT(20)
#define PWR_STATUS_VENC			BIT(21)
#define PWR_STATUS_MFG_2D		BIT(22)	/* MT8173 */
#define PWR_STATUS_MFG_ASYNC		BIT(23)	/* MT8173 */
#define PWR_STATUS_AUDIO		BIT(24)	/* MT8173, MT2712 */
#define PWR_STATUS_USB			BIT(25)	/* MT8173, MT2712 */
#define PWR_STATUS_ETHSYS		BIT(24)	/* MT7622 */
#define PWR_STATUS_HIF0			BIT(25)	/* MT7622 */
#define PWR_STATUS_HIF1			BIT(26)	/* MT7622 */
#define PWR_STATUS_WB			BIT(27)	/* MT7622 */

enum clk_id {
	CLK_NONE,
	CLK_MM,
	CLK_MFG,
	CLK_VENC,
	CLK_VENC_LT,
	CLK_ETHIF,
	CLK_VDEC,
	CLK_HIFSEL,
	CLK_JPGDEC,
	CLK_AUDIO,
	CLK_MAX,
};

static const char * const clk_names[] = {
	NULL,
	"mm",
	"mfg",
	"venc",
	"venc_lt",
	"ethif",
	"vdec",
	"hif_sel",
	"jpgdec",
	"audio",
	NULL,
};

#define MAX_CLKS	3

/**
 * struct scp_domain_data - scp domain data for power on/off flow
 * @name: The domain name.
 * @sta_mask: The mask for power on/off status bit.
 * @ctl_offs: The offset for main power control register.
 * @sram_pdn_bits: The mask for sram power control bits.
 * @sram_pdn_ack_bits: The mask for sram power control acked bits.
 * @bus_prot_mask: The mask for single step bus protection.
 * @clk_id: The basic clocks required by this power domain.
 * @caps: The flag for active wake-up action.
 */
struct scp_domain_data {
	const char *name;
	u32 sta_mask;
	int ctl_offs;
	u32 sram_pdn_bits;
	u32 sram_pdn_ack_bits;
	u32 bus_prot_mask;
	enum clk_id clk_id[MAX_CLKS];
	u8 caps;
};

struct scp;

struct scp_domain {
	struct generic_pm_domain genpd;
	struct scp *scp;
	struct clk *clk[MAX_CLKS];
	const struct scp_domain_data *data;
	struct regulator *supply;
};

struct scp_ctrl_reg {
	int pwr_sta_offs;
	int pwr_sta2nd_offs;
};

struct scp {
	struct scp_domain *domains;
	struct genpd_onecell_data pd_data;
	struct device *dev;
	void __iomem *base;
	struct regmap *infracfg;
	struct scp_ctrl_reg ctrl_reg;
	bool bus_prot_reg_update;
};

struct scp_subdomain {
	int origin;
	int subdomain;
};

struct scp_soc_data {
	const struct scp_domain_data *domains;
	int num_domains;
	const struct scp_subdomain *subdomains;
	int num_subdomains;
	const struct scp_ctrl_reg regs;
	bool bus_prot_reg_update;
};

static int scpsys_domain_is_on(struct scp_domain *scpd)
{
	struct scp *scp = scpd->scp;

	u32 status = readl(scp->base + scp->ctrl_reg.pwr_sta_offs) &
						scpd->data->sta_mask;
	u32 status2 = readl(scp->base + scp->ctrl_reg.pwr_sta2nd_offs) &
						scpd->data->sta_mask;

	/*
	 * A domain is on when both status bits are set. If only one is set
	 * return an error. This happens while powering up a domain
	 */

	if (status && status2)
		return true;
	if (!status && !status2)
		return false;

	return -EINVAL;
}

static int scpsys_regulator_enable(struct scp_domain *scpd)
{
	if (!scpd->supply)
		return 0;

	return regulator_enable(scpd->supply);
}

static int scpsys_regulator_disable(struct scp_domain *scpd)
{
	if (!scpd->supply)
		return 0;

	return regulator_disable(scpd->supply);
}

static void scpsys_clk_disable(struct clk *clk[], int max_num)
{
	int i;

	for (i = max_num - 1; i >= 0; i--)
		clk_disable_unprepare(clk[i]);
}

static int scpsys_clk_enable(struct clk *clk[], int max_num)
{
	int i, ret = 0;

	for (i = 0; i < max_num && clk[i]; i++) {
		ret = clk_prepare_enable(clk[i]);
		if (ret) {
			scpsys_clk_disable(clk, i);
			break;
		}
	}

	return ret;
}

static int scpsys_sram_enable(struct scp_domain *scpd, void __iomem *ctl_addr)
{
	u32 val;
	u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
	int tmp;

	val = readl(ctl_addr);
	val &= ~scpd->data->sram_pdn_bits;
	writel(val, ctl_addr);

	/* Either wait until SRAM_PDN_ACK all 0 or have a force wait */
	if (MTK_SCPD_CAPS(scpd, MTK_SCPD_FWAIT_SRAM)) {
		/*
		 * Currently, MTK_SCPD_FWAIT_SRAM is necessary only for
		 * MT7622_POWER_DOMAIN_WB and thus just a trivial setup
		 * is applied here.
		 */
		usleep_range(12000, 12100);
	} else {
		/* Either wait until SRAM_PDN_ACK all 1 or 0 */
		int ret = readl_poll_timeout(ctl_addr, tmp,
				(tmp & pdn_ack) == 0,
				MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
		if (ret < 0)
			return ret;
	}

	return 0;
}

static int scpsys_sram_disable(struct scp_domain *scpd, void __iomem *ctl_addr)
{
	u32 val;
	u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
	int tmp;

	val = readl(ctl_addr);
	val |= scpd->data->sram_pdn_bits;
	writel(val, ctl_addr);

	/* Either wait until SRAM_PDN_ACK all 1 or 0 */
	return readl_poll_timeout(ctl_addr, tmp,
			(tmp & pdn_ack) == pdn_ack,
			MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
}

static int scpsys_bus_protect_enable(struct scp_domain *scpd)
{
	struct scp *scp = scpd->scp;

	if (!scpd->data->bus_prot_mask)
		return 0;

	return mtk_infracfg_set_bus_protection(scp->infracfg,
			scpd->data->bus_prot_mask,
			scp->bus_prot_reg_update);
}

static int scpsys_bus_protect_disable(struct scp_domain *scpd)
{
	struct scp *scp = scpd->scp;

	if (!scpd->data->bus_prot_mask)
		return 0;

	return mtk_infracfg_clear_bus_protection(scp->infracfg,
			scpd->data->bus_prot_mask,
			scp->bus_prot_reg_update);
}

static int scpsys_power_on(struct generic_pm_domain *genpd)
{
	struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
	struct scp *scp = scpd->scp;
	void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
	u32 val;
	int ret, tmp;

	ret = scpsys_regulator_enable(scpd);
	if (ret < 0)
		return ret;

	ret = scpsys_clk_enable(scpd->clk, MAX_CLKS);
	if (ret)
		goto err_clk;

	/* subsys power on */
	val = readl(ctl_addr);
	val |= PWR_ON_BIT;
	writel(val, ctl_addr);
	val |= PWR_ON_2ND_BIT;
	writel(val, ctl_addr);

	/* wait until PWR_ACK = 1 */
	ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp > 0,
				 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
	if (ret < 0)
		goto err_pwr_ack;

	val &= ~PWR_CLK_DIS_BIT;
	writel(val, ctl_addr);

	val &= ~PWR_ISO_BIT;
	writel(val, ctl_addr);

	val |= PWR_RST_B_BIT;
	writel(val, ctl_addr);

	ret = scpsys_sram_enable(scpd, ctl_addr);
	if (ret < 0)
		goto err_pwr_ack;

	ret = scpsys_bus_protect_disable(scpd);
	if (ret < 0)
		goto err_pwr_ack;

	return 0;

err_pwr_ack:
	scpsys_clk_disable(scpd->clk, MAX_CLKS);
err_clk:
	scpsys_regulator_disable(scpd);

	dev_err(scp->dev, "Failed to power on domain %s\n", genpd->name);

	return ret;
}

static int scpsys_power_off(struct generic_pm_domain *genpd)
{
	struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
	struct scp *scp = scpd->scp;
	void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
	u32 val;
	int ret, tmp;

	ret = scpsys_bus_protect_enable(scpd);
	if (ret < 0)
		goto out;

	ret = scpsys_sram_disable(scpd, ctl_addr);
	if (ret < 0)
		goto out;

	/* subsys power off */
	val = readl(ctl_addr);
	val |= PWR_ISO_BIT;
	writel(val, ctl_addr);

	val &= ~PWR_RST_B_BIT;
	writel(val, ctl_addr);

	val |= PWR_CLK_DIS_BIT;
	writel(val, ctl_addr);

	val &= ~PWR_ON_BIT;
	writel(val, ctl_addr);

	val &= ~PWR_ON_2ND_BIT;
	writel(val, ctl_addr);

	/* wait until PWR_ACK = 0 */
	ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp == 0,
				 MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
	if (ret < 0)
		goto out;

	scpsys_clk_disable(scpd->clk, MAX_CLKS);

	ret = scpsys_regulator_disable(scpd);
	if (ret < 0)
		goto out;

	return 0;

out:
	dev_err(scp->dev, "Failed to power off domain %s\n", genpd->name);

	return ret;
}

static void init_clks(struct platform_device *pdev, struct clk **clk)
{
	int i;

	for (i = CLK_NONE + 1; i < CLK_MAX; i++)
		clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
}

static struct scp *init_scp(struct platform_device *pdev,
			const struct scp_domain_data *scp_domain_data, int num,
			const struct scp_ctrl_reg *scp_ctrl_reg,
			bool bus_prot_reg_update)
{
	struct genpd_onecell_data *pd_data;
	struct resource *res;
	int i, j;
	struct scp *scp;
	struct clk *clk[CLK_MAX];

	scp = devm_kzalloc(&pdev->dev, sizeof(*scp), GFP_KERNEL);
	if (!scp)
		return ERR_PTR(-ENOMEM);

	scp->ctrl_reg.pwr_sta_offs = scp_ctrl_reg->pwr_sta_offs;
	scp->ctrl_reg.pwr_sta2nd_offs = scp_ctrl_reg->pwr_sta2nd_offs;

	scp->bus_prot_reg_update = bus_prot_reg_update;

	scp->dev = &pdev->dev;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	scp->base = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(scp->base))
		return ERR_CAST(scp->base);

	scp->domains = devm_kcalloc(&pdev->dev,
				num, sizeof(*scp->domains), GFP_KERNEL);
	if (!scp->domains)
		return ERR_PTR(-ENOMEM);

	pd_data = &scp->pd_data;

	pd_data->domains = devm_kcalloc(&pdev->dev,
			num, sizeof(*pd_data->domains), GFP_KERNEL);
	if (!pd_data->domains)
		return ERR_PTR(-ENOMEM);

	scp->infracfg = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
			"infracfg");
	if (IS_ERR(scp->infracfg)) {
		dev_err(&pdev->dev, "Cannot find infracfg controller: %ld\n",
				PTR_ERR(scp->infracfg));
		return ERR_CAST(scp->infracfg);
	}

	for (i = 0; i < num; i++) {
		struct scp_domain *scpd = &scp->domains[i];
		const struct scp_domain_data *data = &scp_domain_data[i];

		scpd->supply = devm_regulator_get_optional(&pdev->dev, data->name);
		if (IS_ERR(scpd->supply)) {
			if (PTR_ERR(scpd->supply) == -ENODEV)
				scpd->supply = NULL;
			else
				return ERR_CAST(scpd->supply);
		}
	}

	pd_data->num_domains = num;

	init_clks(pdev, clk);

	for (i = 0; i < num; i++) {
		struct scp_domain *scpd = &scp->domains[i];
		struct generic_pm_domain *genpd = &scpd->genpd;
		const struct scp_domain_data *data = &scp_domain_data[i];

		pd_data->domains[i] = genpd;
		scpd->scp = scp;

		scpd->data = data;

		for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
			struct clk *c = clk[data->clk_id[j]];

			if (IS_ERR(c)) {
				dev_err(&pdev->dev, "%s: clk unavailable\n",
					data->name);
				return ERR_CAST(c);
			}

			scpd->clk[j] = c;
		}

		genpd->name = data->name;
		genpd->power_off = scpsys_power_off;
		genpd->power_on = scpsys_power_on;
		if (MTK_SCPD_CAPS(scpd, MTK_SCPD_ACTIVE_WAKEUP))
			genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
	}

	return scp;
}

static void mtk_register_power_domains(struct platform_device *pdev,
				struct scp *scp, int num)
{
	struct genpd_onecell_data *pd_data;
	int i, ret;

	for (i = 0; i < num; i++) {
		struct scp_domain *scpd = &scp->domains[i];
		struct generic_pm_domain *genpd = &scpd->genpd;

		/*
		 * Initially turn on all domains to make the domains usable
		 * with !CONFIG_PM and to get the hardware in sync with the
		 * software.  The unused domains will be switched off during
		 * late_init time.
		 */
		genpd->power_on(genpd);

		pm_genpd_init(genpd, NULL, false);
	}

	/*
	 * We are not allowed to fail here since there is no way to unregister
	 * a power domain. Once registered above we have to keep the domains
	 * valid.
	 */

	pd_data = &scp->pd_data;

	ret = of_genpd_add_provider_onecell(pdev->dev.of_node, pd_data);
	if (ret)
		dev_err(&pdev->dev, "Failed to add OF provider: %d\n", ret);
}

/*
 * MT2701 power domain support
 */

static const struct scp_domain_data scp_domain_data_mt2701[] = {
	[MT2701_POWER_DOMAIN_CONN] = {
		.name = "conn",
		.sta_mask = PWR_STATUS_CONN,
		.ctl_offs = SPM_CONN_PWR_CON,
		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
				 MT2701_TOP_AXI_PROT_EN_CONN_S,
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_DISP] = {
		.name = "disp",
		.sta_mask = PWR_STATUS_DISP,
		.ctl_offs = SPM_DIS_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.clk_id = {CLK_MM},
		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_MM_M0,
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_MFG] = {
		.name = "mfg",
		.sta_mask = PWR_STATUS_MFG,
		.ctl_offs = SPM_MFG_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MFG},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_VDEC] = {
		.name = "vdec",
		.sta_mask = PWR_STATUS_VDEC,
		.ctl_offs = SPM_VDE_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_ISP] = {
		.name = "isp",
		.sta_mask = PWR_STATUS_ISP,
		.ctl_offs = SPM_ISP_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(13, 12),
		.clk_id = {CLK_MM},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_BDP] = {
		.name = "bdp",
		.sta_mask = PWR_STATUS_BDP,
		.ctl_offs = SPM_BDP_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_ETH] = {
		.name = "eth",
		.sta_mask = PWR_STATUS_ETH,
		.ctl_offs = SPM_ETH_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_ETHIF},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_HIF] = {
		.name = "hif",
		.sta_mask = PWR_STATUS_HIF,
		.ctl_offs = SPM_HIF_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_ETHIF},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2701_POWER_DOMAIN_IFR_MSC] = {
		.name = "ifr_msc",
		.sta_mask = PWR_STATUS_IFR_MSC,
		.ctl_offs = SPM_IFR_MSC_PWR_CON,
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
};

/*
 * MT2712 power domain support
 */
static const struct scp_domain_data scp_domain_data_mt2712[] = {
	[MT2712_POWER_DOMAIN_MM] = {
		.name = "mm",
		.sta_mask = PWR_STATUS_DISP,
		.ctl_offs = SPM_DIS_PWR_CON,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_VDEC] = {
		.name = "vdec",
		.sta_mask = PWR_STATUS_VDEC,
		.ctl_offs = SPM_VDE_PWR_CON,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM, CLK_VDEC},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_VENC] = {
		.name = "venc",
		.sta_mask = PWR_STATUS_VENC,
		.ctl_offs = SPM_VEN_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_MM, CLK_VENC, CLK_JPGDEC},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_ISP] = {
		.name = "isp",
		.sta_mask = PWR_STATUS_ISP,
		.ctl_offs = SPM_ISP_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(13, 12),
		.clk_id = {CLK_MM},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_AUDIO] = {
		.name = "audio",
		.sta_mask = PWR_STATUS_AUDIO,
		.ctl_offs = SPM_AUDIO_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_AUDIO},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_USB] = {
		.name = "usb",
		.sta_mask = PWR_STATUS_USB,
		.ctl_offs = SPM_USB_PWR_CON,
		.sram_pdn_bits = GENMASK(10, 8),
		.sram_pdn_ack_bits = GENMASK(14, 12),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_USB2] = {
		.name = "usb2",
		.sta_mask = PWR_STATUS_USB2,
		.ctl_offs = SPM_USB2_PWR_CON,
		.sram_pdn_bits = GENMASK(10, 8),
		.sram_pdn_ack_bits = GENMASK(14, 12),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_MFG] = {
		.name = "mfg",
		.sta_mask = PWR_STATUS_MFG,
		.ctl_offs = SPM_MFG_PWR_CON,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(16, 16),
		.clk_id = {CLK_MFG},
		.bus_prot_mask = BIT(14) | BIT(21) | BIT(23),
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_MFG_SC1] = {
		.name = "mfg_sc1",
		.sta_mask = BIT(22),
		.ctl_offs = 0x02c0,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(16, 16),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_MFG_SC2] = {
		.name = "mfg_sc2",
		.sta_mask = BIT(23),
		.ctl_offs = 0x02c4,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(16, 16),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT2712_POWER_DOMAIN_MFG_SC3] = {
		.name = "mfg_sc3",
		.sta_mask = BIT(30),
		.ctl_offs = 0x01f8,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(16, 16),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
};

static const struct scp_subdomain scp_subdomain_mt2712[] = {
	{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VDEC},
	{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VENC},
	{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_ISP},
	{MT2712_POWER_DOMAIN_MFG, MT2712_POWER_DOMAIN_MFG_SC1},
	{MT2712_POWER_DOMAIN_MFG_SC1, MT2712_POWER_DOMAIN_MFG_SC2},
	{MT2712_POWER_DOMAIN_MFG_SC2, MT2712_POWER_DOMAIN_MFG_SC3},
};

/*
 * MT6797 power domain support
 */

static const struct scp_domain_data scp_domain_data_mt6797[] = {
	[MT6797_POWER_DOMAIN_VDEC] = {
		.name = "vdec",
		.sta_mask = BIT(7),
		.ctl_offs = 0x300,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_VDEC},
	},
	[MT6797_POWER_DOMAIN_VENC] = {
		.name = "venc",
		.sta_mask = BIT(21),
		.ctl_offs = 0x304,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_NONE},
	},
	[MT6797_POWER_DOMAIN_ISP] = {
		.name = "isp",
		.sta_mask = BIT(5),
		.ctl_offs = 0x308,
		.sram_pdn_bits = GENMASK(9, 8),
		.sram_pdn_ack_bits = GENMASK(13, 12),
		.clk_id = {CLK_NONE},
	},
	[MT6797_POWER_DOMAIN_MM] = {
		.name = "mm",
		.sta_mask = BIT(3),
		.ctl_offs = 0x30C,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM},
		.bus_prot_mask = (BIT(1) | BIT(2)),
	},
	[MT6797_POWER_DOMAIN_AUDIO] = {
		.name = "audio",
		.sta_mask = BIT(24),
		.ctl_offs = 0x314,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_NONE},
	},
	[MT6797_POWER_DOMAIN_MFG_ASYNC] = {
		.name = "mfg_async",
		.sta_mask = BIT(13),
		.ctl_offs = 0x334,
		.sram_pdn_bits = 0,
		.sram_pdn_ack_bits = 0,
		.clk_id = {CLK_MFG},
	},
	[MT6797_POWER_DOMAIN_MJC] = {
		.name = "mjc",
		.sta_mask = BIT(20),
		.ctl_offs = 0x310,
		.sram_pdn_bits = GENMASK(8, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_NONE},
	},
};

#define SPM_PWR_STATUS_MT6797		0x0180
#define SPM_PWR_STATUS_2ND_MT6797	0x0184

static const struct scp_subdomain scp_subdomain_mt6797[] = {
	{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_VDEC},
	{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_ISP},
	{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_VENC},
	{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_MJC},
};

/*
 * MT7622 power domain support
 */

static const struct scp_domain_data scp_domain_data_mt7622[] = {
	[MT7622_POWER_DOMAIN_ETHSYS] = {
		.name = "ethsys",
		.sta_mask = PWR_STATUS_ETHSYS,
		.ctl_offs = SPM_ETHSYS_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_NONE},
		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_ETHSYS,
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7622_POWER_DOMAIN_HIF0] = {
		.name = "hif0",
		.sta_mask = PWR_STATUS_HIF0,
		.ctl_offs = SPM_HIF0_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_HIFSEL},
		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF0,
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7622_POWER_DOMAIN_HIF1] = {
		.name = "hif1",
		.sta_mask = PWR_STATUS_HIF1,
		.ctl_offs = SPM_HIF1_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_HIFSEL},
		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF1,
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7622_POWER_DOMAIN_WB] = {
		.name = "wb",
		.sta_mask = PWR_STATUS_WB,
		.ctl_offs = SPM_WB_PWR_CON,
		.sram_pdn_bits = 0,
		.sram_pdn_ack_bits = 0,
		.clk_id = {CLK_NONE},
		.bus_prot_mask = MT7622_TOP_AXI_PROT_EN_WB,
		.caps = MTK_SCPD_ACTIVE_WAKEUP | MTK_SCPD_FWAIT_SRAM,
	},
};

/*
 * MT7623A power domain support
 */

static const struct scp_domain_data scp_domain_data_mt7623a[] = {
	[MT7623A_POWER_DOMAIN_CONN] = {
		.name = "conn",
		.sta_mask = PWR_STATUS_CONN,
		.ctl_offs = SPM_CONN_PWR_CON,
		.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
				 MT2701_TOP_AXI_PROT_EN_CONN_S,
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7623A_POWER_DOMAIN_ETH] = {
		.name = "eth",
		.sta_mask = PWR_STATUS_ETH,
		.ctl_offs = SPM_ETH_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_ETHIF},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7623A_POWER_DOMAIN_HIF] = {
		.name = "hif",
		.sta_mask = PWR_STATUS_HIF,
		.ctl_offs = SPM_HIF_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_ETHIF},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT7623A_POWER_DOMAIN_IFR_MSC] = {
		.name = "ifr_msc",
		.sta_mask = PWR_STATUS_IFR_MSC,
		.ctl_offs = SPM_IFR_MSC_PWR_CON,
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
};

/*
 * MT8173 power domain support
 */

static const struct scp_domain_data scp_domain_data_mt8173[] = {
	[MT8173_POWER_DOMAIN_VDEC] = {
		.name = "vdec",
		.sta_mask = PWR_STATUS_VDEC,
		.ctl_offs = SPM_VDE_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM},
	},
	[MT8173_POWER_DOMAIN_VENC] = {
		.name = "venc",
		.sta_mask = PWR_STATUS_VENC,
		.ctl_offs = SPM_VEN_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_MM, CLK_VENC},
	},
	[MT8173_POWER_DOMAIN_ISP] = {
		.name = "isp",
		.sta_mask = PWR_STATUS_ISP,
		.ctl_offs = SPM_ISP_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(13, 12),
		.clk_id = {CLK_MM},
	},
	[MT8173_POWER_DOMAIN_MM] = {
		.name = "mm",
		.sta_mask = PWR_STATUS_DISP,
		.ctl_offs = SPM_DIS_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.clk_id = {CLK_MM},
		.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 |
			MT8173_TOP_AXI_PROT_EN_MM_M1,
	},
	[MT8173_POWER_DOMAIN_VENC_LT] = {
		.name = "venc_lt",
		.sta_mask = PWR_STATUS_VENC_LT,
		.ctl_offs = SPM_VEN2_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_MM, CLK_VENC_LT},
	},
	[MT8173_POWER_DOMAIN_AUDIO] = {
		.name = "audio",
		.sta_mask = PWR_STATUS_AUDIO,
		.ctl_offs = SPM_AUDIO_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_NONE},
	},
	[MT8173_POWER_DOMAIN_USB] = {
		.name = "usb",
		.sta_mask = PWR_STATUS_USB,
		.ctl_offs = SPM_USB_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(15, 12),
		.clk_id = {CLK_NONE},
		.caps = MTK_SCPD_ACTIVE_WAKEUP,
	},
	[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
		.name = "mfg_async",
		.sta_mask = PWR_STATUS_MFG_ASYNC,
		.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = 0,
		.clk_id = {CLK_MFG},
	},
	[MT8173_POWER_DOMAIN_MFG_2D] = {
		.name = "mfg_2d",
		.sta_mask = PWR_STATUS_MFG_2D,
		.ctl_offs = SPM_MFG_2D_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(13, 12),
		.clk_id = {CLK_NONE},
	},
	[MT8173_POWER_DOMAIN_MFG] = {
		.name = "mfg",
		.sta_mask = PWR_STATUS_MFG,
		.ctl_offs = SPM_MFG_PWR_CON,
		.sram_pdn_bits = GENMASK(13, 8),
		.sram_pdn_ack_bits = GENMASK(21, 16),
		.clk_id = {CLK_NONE},
		.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S |
			MT8173_TOP_AXI_PROT_EN_MFG_M0 |
			MT8173_TOP_AXI_PROT_EN_MFG_M1 |
			MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT,
	},
};

static const struct scp_subdomain scp_subdomain_mt8173[] = {
	{MT8173_POWER_DOMAIN_MFG_ASYNC, MT8173_POWER_DOMAIN_MFG_2D},
	{MT8173_POWER_DOMAIN_MFG_2D, MT8173_POWER_DOMAIN_MFG},
};

static const struct scp_soc_data mt2701_data = {
	.domains = scp_domain_data_mt2701,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt2701),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
	},
	.bus_prot_reg_update = true,
};

static const struct scp_soc_data mt2712_data = {
	.domains = scp_domain_data_mt2712,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt2712),
	.subdomains = scp_subdomain_mt2712,
	.num_subdomains = ARRAY_SIZE(scp_subdomain_mt2712),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
	},
	.bus_prot_reg_update = false,
};

static const struct scp_soc_data mt6797_data = {
	.domains = scp_domain_data_mt6797,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt6797),
	.subdomains = scp_subdomain_mt6797,
	.num_subdomains = ARRAY_SIZE(scp_subdomain_mt6797),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS_MT6797,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND_MT6797
	},
	.bus_prot_reg_update = true,
};

static const struct scp_soc_data mt7622_data = {
	.domains = scp_domain_data_mt7622,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt7622),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
	},
	.bus_prot_reg_update = true,
};

static const struct scp_soc_data mt7623a_data = {
	.domains = scp_domain_data_mt7623a,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt7623a),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
	},
	.bus_prot_reg_update = true,
};

static const struct scp_soc_data mt8173_data = {
	.domains = scp_domain_data_mt8173,
	.num_domains = ARRAY_SIZE(scp_domain_data_mt8173),
	.subdomains = scp_subdomain_mt8173,
	.num_subdomains = ARRAY_SIZE(scp_subdomain_mt8173),
	.regs = {
		.pwr_sta_offs = SPM_PWR_STATUS,
		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
	},
	.bus_prot_reg_update = true,
};

/*
 * scpsys driver init
 */

static const struct of_device_id of_scpsys_match_tbl[] = {
	{
		.compatible = "mediatek,mt2701-scpsys",
		.data = &mt2701_data,
	}, {
		.compatible = "mediatek,mt2712-scpsys",
		.data = &mt2712_data,
	}, {
		.compatible = "mediatek,mt6797-scpsys",
		.data = &mt6797_data,
	}, {
		.compatible = "mediatek,mt7622-scpsys",
		.data = &mt7622_data,
	}, {
		.compatible = "mediatek,mt7623a-scpsys",
		.data = &mt7623a_data,
	}, {
		.compatible = "mediatek,mt8173-scpsys",
		.data = &mt8173_data,
	}, {
		/* sentinel */
	}
};

static int scpsys_probe(struct platform_device *pdev)
{
	const struct scp_subdomain *sd;
	const struct scp_soc_data *soc;
	struct scp *scp;
	struct genpd_onecell_data *pd_data;
	int i, ret;

	soc = of_device_get_match_data(&pdev->dev);

	scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs,
			soc->bus_prot_reg_update);
	if (IS_ERR(scp))
		return PTR_ERR(scp);

	mtk_register_power_domains(pdev, scp, soc->num_domains);

	pd_data = &scp->pd_data;

	for (i = 0, sd = soc->subdomains; i < soc->num_subdomains; i++, sd++) {
		ret = pm_genpd_add_subdomain(pd_data->domains[sd->origin],
					     pd_data->domains[sd->subdomain]);
		if (ret && IS_ENABLED(CONFIG_PM))
			dev_err(&pdev->dev, "Failed to add subdomain: %d\n",
				ret);
	}

	return 0;
}

static struct platform_driver scpsys_drv = {
	.probe = scpsys_probe,
	.driver = {
		.name = "mtk-scpsys",
		.suppress_bind_attrs = true,
		.owner = THIS_MODULE,
		.of_match_table = of_match_ptr(of_scpsys_match_tbl),
	},
};
builtin_platform_driver(scpsys_drv);