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 /*
19 * Some TigerLake devices based on an initial Intel BIOS do not expose
20 * the correct _ADR in the DSDT.
21 * Remap the bad _ADR values to the ones reported by hardware
22 */
23 static const struct adr_remap intel_tgl_bios[] = {
24 {
25 0x000010025D070100ull,
26 0x000020025D071100ull
27 },
28 {
29 0x000110025d070100ull,
30 0x000120025D130800ull
31 },
32 {}
33 };
34
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 {
42 0x00020025d071100ull,
43 0x00021025d071500ull
44 },
45 /* rt711 on link1 */
46 {
47 0x000120025d130800ull,
48 0x000120025d071100ull,
49 },
50 /* rt1308 on link2 */
51 {
52 0x000220025d071500ull,
53 0x000220025d130800ull
54 },
55 {}
56 };
57
58 /*
59 * The HP Omen 16-k0005TX does not expose the correct version of RT711 on link0
60 * and does not expose a RT1316 on link3
61 */
62 static const struct adr_remap hp_omen_16[] = {
63 /* rt711-sdca on link0 */
64 {
65 0x000020025d071100ull,
66 0x000030025d071101ull
67 },
68 /* rt1316-sdca on link3 */
69 {
70 0x000120025d071100ull,
71 0x000330025d131601ull
72 },
73 {}
74 };
75
76 static const struct dmi_system_id adr_remap_quirk_table[] = {
77 /* TGL devices */
78 {
79 .matches = {
80 DMI_MATCH(DMI_SYS_VENDOR, "HP"),
81 DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Conv"),
82 },
83 .driver_data = (void *)intel_tgl_bios,
84 },
85 {
86 /* quirk used for NUC15 'Bishop County' LAPBC510 and LAPBC710 skews */
87 .matches = {
88 DMI_MATCH(DMI_SYS_VENDOR, "Intel(R) Client Systems"),
89 DMI_MATCH(DMI_PRODUCT_NAME, "LAPBC"),
90 },
91 .driver_data = (void *)intel_tgl_bios,
92 },
93 {
94 .matches = {
95 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
96 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A3E")
97 },
98 .driver_data = (void *)dell_sku_0A3E,
99 },
100 /* ADL devices */
101 {
102 .matches = {
103 DMI_MATCH(DMI_SYS_VENDOR, "HP"),
104 DMI_MATCH(DMI_PRODUCT_NAME, "OMEN by HP Gaming Laptop 16-k0xxx"),
105 },
106 .driver_data = (void *)hp_omen_16,
107 },
108 {}
109 };
110
sdw_dmi_override_adr(struct sdw_bus * bus,u64 addr)111 u64 sdw_dmi_override_adr(struct sdw_bus *bus, u64 addr)
112 {
113 const struct dmi_system_id *dmi_id;
114
115 /* check if any address remap quirk applies */
116 dmi_id = dmi_first_match(adr_remap_quirk_table);
117 if (dmi_id) {
118 struct adr_remap *map;
119
120 for (map = dmi_id->driver_data; map->adr; map++) {
121 if (map->adr == addr) {
122 dev_dbg(bus->dev, "remapped _ADR 0x%llx as 0x%llx\n",
123 addr, map->remapped_adr);
124 addr = map->remapped_adr;
125 break;
126 }
127 }
128 }
129
130 return addr;
131 }
132
