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037219925e
cppcheck warning:
drivers/soundwire/dmi-quirks.c:85:12: style: Redundant initialization
for 'map'. The initialized value is overwritten before it is
read. [redundantInitialization]
for (map = dmi_id->driver_data; map->adr; map++) {
^
drivers/soundwire/dmi-quirks.c:83:25: note: map is initialized
struct adr_remap *map = dmi_id->driver_data;
^
drivers/soundwire/dmi-quirks.c:85:12: note: map is overwritten
for (map = dmi_id->driver_data; map->adr; map++) {
^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210511025035.25233-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
97 lines
1.8 KiB
C
97 lines
1.8 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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// Copyright(c) 2021 Intel Corporation.
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/*
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* Soundwire DMI quirks
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*/
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#include <linux/device.h>
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#include <linux/dmi.h>
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#include <linux/soundwire/sdw.h>
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#include "bus.h"
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struct adr_remap {
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u64 adr;
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u64 remapped_adr;
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};
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/*
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* HP Spectre 360 Convertible devices do not expose the correct _ADR
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* in the DSDT.
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* Remap the bad _ADR values to the ones reported by hardware
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*/
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static const struct adr_remap hp_spectre_360[] = {
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{
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0x000010025D070100,
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0x000020025D071100
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},
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{
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0x000110025d070100,
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0x000120025D130800
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},
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{}
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};
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/*
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* The initial version of the Dell SKU 0A3E did not expose the devices
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* on the correct links.
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*/
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static const struct adr_remap dell_sku_0A3E[] = {
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/* rt715 on link0 */
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{
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0x00020025d071100,
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0x00021025d071500
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},
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/* rt711 on link1 */
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{
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0x000120025d130800,
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0x000120025d071100,
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},
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/* rt1308 on link2 */
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{
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0x000220025d071500,
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0x000220025d130800
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},
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{}
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};
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static const struct dmi_system_id adr_remap_quirk_table[] = {
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{
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "HP"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Convertible"),
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},
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.driver_data = (void *)hp_spectre_360,
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},
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{
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
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DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A3E")
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},
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.driver_data = (void *)dell_sku_0A3E,
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},
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{}
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};
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u64 sdw_dmi_override_adr(struct sdw_bus *bus, u64 addr)
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{
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const struct dmi_system_id *dmi_id;
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/* check if any address remap quirk applies */
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dmi_id = dmi_first_match(adr_remap_quirk_table);
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if (dmi_id) {
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struct adr_remap *map;
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for (map = dmi_id->driver_data; map->adr; map++) {
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if (map->adr == addr) {
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dev_dbg(bus->dev, "remapped _ADR 0x%llx as 0x%llx\n",
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addr, map->remapped_adr);
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addr = map->remapped_adr;
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break;
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}
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}
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}
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return addr;
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}
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