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platform/chrome: cros_ec_lpc: Add support for Google devices using custom coreboot firmware

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This patch adds generic device information to the DMI table of
the cros_ec_lpc driver, needed for Chromebooks/boxes using a
custom coreboot firmware.

The DMI info would not contain "Google_*" as BIOS version string,
instead the system vendor string would still be "GOOGLE", so this
seems to be a reasonable match for every Chromebook/box running
a custom firmware.

Signed-off-by: Salvatore Bellizzi <lkml@seppia.net>
Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Benson Leung <bleung@chromium.org>
This commit is contained in:
Salvatore Bellizzi 2018-03-07 14:56:43 +01:00 committed by Benson Leung
parent d6542b3916
commit f56db262e4
1 changed files with 12 additions and 0 deletions
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12
drivers/platform/chrome/cros_ec_lpc.c
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@ -345,6 +345,18 @@ static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
DMI_MATCH(DMI_BIOS_VERSION, "Google_"),
},
},
{
/*
* If the box is running custom coreboot firmware then the
* DMI BIOS version string will not be matched by "Google_",
* but the system vendor string will still be matched by
* "GOOGLE".
*/
.matches = {
DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
},
},
{
/* x86-link, the Chromebook Pixel. */
.matches = {