1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2 // Copyright(c) 2021 Intel Corporation.
8 #include <linux/device.h>
10 #include <linux/soundwire/sdw.h>
19 * HP Spectre 360 Convertible devices do not expose the correct _ADR
21 * Remap the bad _ADR values to the ones reported by hardware
23 static const struct adr_remap hp_spectre_360[] = {
36 * The initial version of the Dell SKU 0A3E did not expose the devices
37 * on the correct links.
39 static const struct adr_remap dell_sku_0A3E[] = {
58 static const struct dmi_system_id adr_remap_quirk_table[] = {
61 DMI_MATCH(DMI_SYS_VENDOR, "HP"),
62 DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Convertible"),
64 .driver_data = (void *)hp_spectre_360,
68 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
69 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A3E")
71 .driver_data = (void *)dell_sku_0A3E,
76 u64 sdw_dmi_override_adr(struct sdw_bus *bus, u64 addr)
78 const struct dmi_system_id *dmi_id;
80 /* check if any address remap quirk applies */
81 dmi_id = dmi_first_match(adr_remap_quirk_table);
83 struct adr_remap *map;
85 for (map = dmi_id->driver_data; map->adr; map++) {
86 if (map->adr == addr) {
87 dev_dbg(bus->dev, "remapped _ADR 0x%llx as 0x%llx\n",
88 addr, map->remapped_adr);
89 addr = map->remapped_adr;