GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/lenovo/t420s: Add support for ThinkLight 

With this patch, the ThinkLight on the ThinkPad T420S can be controlled
through the OS.  The same change was done for the ThinkPad X200 in
b45912f4: mb/lenovo/x200: Add support for ThinkLight

After applying this patch, the light can be controlled like this:

    echo on >/proc/acpi/ibm/light
    echo off >/proc/acpi/ibm/light

Or through sysfs at /sys/class/leds/tpacpi::thinklight

Unfortunately I do not own a T420S to test this.

Change-Id: I245acf81b34abccf7bcb04126275ab8b154135d5
Signed-off-by: Stefan Ott <stefan@ott.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40715
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
This commit is contained in:
Stefan Ott 2020-04-22 23:20:03 +02:00 committed by Alexander Couzens
parent 65bd97c636
commit 39fc181e55
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mainboard/lenovo/t420s/dsdt.asl
View File

@ -35,4 +35,5 @@ DefinitionBlock(
} }
#include <southbridge/intel/common/acpi/sleepstates.asl> #include <southbridge/intel/common/acpi/sleepstates.asl>
#include <ec/lenovo/h8/acpi/thinklight.asl>
} }