From 23be41880c1ff0b1485fc6fe1b92d990c3decf8a Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Tue, 1 Mar 2022 15:35:17 -0600 Subject: ec/chromeec/ec_smbios: Set system manufacturer for ChromeOS devices Currently, many Linux drivers use DMI quirks to identify ChromeOS devices and handle them accordingly: namely they look for the SMBIOS system manufactuer to be "GOOGLE" or "Google", and the bios-vendor to be coreboot. Historically this was consistently the case, but recent model ChromeOS devices allow the OEM to set the mainboard manufacturer, which is also the default system manufacturer. This breaks many DMI quirks, notably ones used by SOF (sound open firmware) for audio. To fix this, set the system manufactuer for ChromeOS devices to "Google" for devices selecting CONFIG_EC_GOOGLE_CHROMEEC_SKUID, leaving the OEM customization in place for the mainboard manufacturer. Since boards selecting CONFIG_EC_GOOGLE_CHROMEEC_SKUID are the only ones overriding the default mainboard manufacturer, they are the only ones which need this correction. Test: build/boot google/bloog with Linux 5.16, verify SOF drivers correctly detect device as a Chromebook and load the appropriate audio firmware. Change-Id: I9de17fa12689ab4e627b995818aa3d2653102b04 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/62796 Reviewed-by: Felix Singer Reviewed-by: Tim Wawrzynczak Tested-by: build bot (Jenkins) --- src/ec/google/chromeec/ec_smbios.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/ec/google/chromeec/ec_smbios.c b/src/ec/google/chromeec/ec_smbios.c index 1ee7283dc1..aedcf85afe 100644 --- a/src/ec/google/chromeec/ec_smbios.c +++ b/src/ec/google/chromeec/ec_smbios.c @@ -37,3 +37,8 @@ const char *smbios_mainboard_manufacturer(void) return manuf; } + +const char *smbios_system_manufacturer(void) +{ + return "Google"; +} -- cgit v1.2.3