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1 | // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) |
2 | // Copyright(c) 2021 Intel Corporation. | |
3 | ||
4 | /* | |
5 | * Soundwire DMI quirks | |
6 | */ | |
7 | ||
8 | #include <linux/device.h> | |
9 | #include <linux/dmi.h> | |
10 | #include <linux/soundwire/sdw.h> | |
11 | #include "bus.h" | |
12 | ||
13 | struct adr_remap { | |
14 | u64 adr; | |
15 | u64 remapped_adr; | |
16 | }; | |
17 | ||
18 | /* | |
caa15c8d PLB |
19 | * Some TigerLake devices based on an initial Intel BIOS do not expose |
20 | * the correct _ADR in the DSDT. | |
f6594cdf PLB |
21 | * Remap the bad _ADR values to the ones reported by hardware |
22 | */ | |
caa15c8d | 23 | static const struct adr_remap intel_tgl_bios[] = { |
f6594cdf | 24 | { |
433b3084 PLB |
25 | 0x000010025D070100ull, |
26 | 0x000020025D071100ull | |
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27 | }, |
28 | { | |
433b3084 PLB |
29 | 0x000110025d070100ull, |
30 | 0x000120025D130800ull | |
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31 | }, |
32 | {} | |
33 | }; | |
34 | ||
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35 | /* |
36 | * The initial version of the Dell SKU 0A3E did not expose the devices | |
37 | * on the correct links. | |
38 | */ | |
39 | static const struct adr_remap dell_sku_0A3E[] = { | |
40 | /* rt715 on link0 */ | |
41 | { | |
433b3084 PLB |
42 | 0x00020025d071100ull, |
43 | 0x00021025d071500ull | |
be3ae00f PLB |
44 | }, |
45 | /* rt711 on link1 */ | |
46 | { | |
433b3084 PLB |
47 | 0x000120025d130800ull, |
48 | 0x000120025d071100ull, | |
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49 | }, |
50 | /* rt1308 on link2 */ | |
51 | { | |
433b3084 PLB |
52 | 0x000220025d071500ull, |
53 | 0x000220025d130800ull | |
be3ae00f PLB |
54 | }, |
55 | {} | |
56 | }; | |
57 | ||
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58 | static const struct dmi_system_id adr_remap_quirk_table[] = { |
59 | { | |
60 | .matches = { | |
61 | DMI_MATCH(DMI_SYS_VENDOR, "HP"), | |
ce73ef6e | 62 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Conv"), |
f6594cdf | 63 | }, |
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64 | .driver_data = (void *)intel_tgl_bios, |
65 | }, | |
66 | { | |
67 | /* quirk used for NUC15 'Bishop County' LAPBC510 and LAPBC710 skews */ | |
68 | .matches = { | |
69 | DMI_MATCH(DMI_SYS_VENDOR, "Intel(R) Client Systems"), | |
70 | DMI_MATCH(DMI_PRODUCT_NAME, "LAPBC"), | |
71 | }, | |
72 | .driver_data = (void *)intel_tgl_bios, | |
f6594cdf | 73 | }, |
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74 | { |
75 | .matches = { | |
76 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), | |
77 | DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A3E") | |
78 | }, | |
79 | .driver_data = (void *)dell_sku_0A3E, | |
80 | }, | |
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81 | {} |
82 | }; | |
83 | ||
84 | u64 sdw_dmi_override_adr(struct sdw_bus *bus, u64 addr) | |
85 | { | |
86 | const struct dmi_system_id *dmi_id; | |
87 | ||
88 | /* check if any address remap quirk applies */ | |
89 | dmi_id = dmi_first_match(adr_remap_quirk_table); | |
90 | if (dmi_id) { | |
03721992 | 91 | struct adr_remap *map; |
f6594cdf PLB |
92 | |
93 | for (map = dmi_id->driver_data; map->adr; map++) { | |
94 | if (map->adr == addr) { | |
95 | dev_dbg(bus->dev, "remapped _ADR 0x%llx as 0x%llx\n", | |
96 | addr, map->remapped_adr); | |
97 | addr = map->remapped_adr; | |
98 | break; | |
99 | } | |
100 | } | |
101 | } | |
102 | ||
103 | return addr; | |
104 | } |