From 57636ea47f105ca821526273c0d7b66bd74667ae Mon Sep 17 00:00:00 2001 From: Tsuchiya Yuto Date: Sun, 18 Oct 2020 16:42:44 +0900 Subject: [PATCH] (surface3-oemb) add DMI matches for Surface 3 with broken DMI table On some Surface 3, the DMI table gets corrupted for unknown reasons and breaks existing DMI matching used for device-specific quirks. This commit adds the (broken) DMI data into dmi_system_id tables used for quirks so that each driver can enable quirks even on the affected systems. On affected systems, DMI data will look like this: $ grep . /sys/devices/virtual/dmi/id/{bios_vendor,board_name,board_vendor,\ chassis_vendor,product_name,sys_vendor} /sys/devices/virtual/dmi/id/bios_vendor:American Megatrends Inc. /sys/devices/virtual/dmi/id/board_name:OEMB /sys/devices/virtual/dmi/id/board_vendor:OEMB /sys/devices/virtual/dmi/id/chassis_vendor:OEMB /sys/devices/virtual/dmi/id/product_name:OEMB /sys/devices/virtual/dmi/id/sys_vendor:OEMB Expected: $ grep . /sys/devices/virtual/dmi/id/{bios_vendor,board_name,board_vendor,\ chassis_vendor,product_name,sys_vendor} /sys/devices/virtual/dmi/id/bios_vendor:American Megatrends Inc. /sys/devices/virtual/dmi/id/board_name:Surface 3 /sys/devices/virtual/dmi/id/board_vendor:Microsoft Corporation /sys/devices/virtual/dmi/id/chassis_vendor:Microsoft Corporation /sys/devices/virtual/dmi/id/product_name:Surface 3 /sys/devices/virtual/dmi/id/sys_vendor:Microsoft Corporation Signed-off-by: Tsuchiya Yuto Patchset: surface3-oemb --- drivers/platform/surface/surface3-wmi.c | 7 +++++++ sound/soc/codecs/rt5645.c | 9 +++++++++ sound/soc/intel/common/soc-acpi-intel-cht-match.c | 8 ++++++++ 3 files changed, 24 insertions(+) diff --git a/drivers/platform/surface/surface3-wmi.c b/drivers/platform/surface/surface3-wmi.c index ca4602bcc7dea..490b9731068ae 100644 --- a/drivers/platform/surface/surface3-wmi.c +++ b/drivers/platform/surface/surface3-wmi.c @@ -37,6 +37,13 @@ static const struct dmi_system_id surface3_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"), }, }, + { + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "OEMB"), + DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"), + }, + }, #endif { } }; diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index 620ecbfa4a7a8..b07d06d2971a8 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -3717,6 +3717,15 @@ static const struct dmi_system_id dmi_platform_data[] = { }, .driver_data = (void *)&intel_braswell_platform_data, }, + { + .ident = "Microsoft Surface 3", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "OEMB"), + DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"), + }, + .driver_data = (void *)&intel_braswell_platform_data, + }, { /* * Match for the GPDwin which unfortunately uses somewhat diff --git a/sound/soc/intel/common/soc-acpi-intel-cht-match.c b/sound/soc/intel/common/soc-acpi-intel-cht-match.c index 6beb00858c33f..d82d77387a0a6 100644 --- a/sound/soc/intel/common/soc-acpi-intel-cht-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-cht-match.c @@ -27,6 +27,14 @@ static const struct dmi_system_id cht_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"), }, }, + { + .callback = cht_surface_quirk_cb, + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "OEMB"), + DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"), + }, + }, { } }; -- 2.40.1