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 }; 110 111 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