diff options
| author | Stefan Ott <stefan@ott.net> | 2020-04-22 23:20:03 +0200 |
|---|---|---|
| committer | Alexander Couzens <lynxis@fe80.eu> | 2020-05-22 09:52:08 +0000 |
| commit | 39fc181e558ca11a2d36590bef25ba6f163046ec (patch) | |
| tree | 3b5b5a394a5c4eade0a2dfa275d0152cba3f5590 /src/mainboard | |
| parent | 65bd97c6360a0e5190e393b84bc6b2d2029439a3 (diff) | |
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>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/lenovo/t420s/dsdt.asl | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/t420s/dsdt.asl b/src/mainboard/lenovo/t420s/dsdt.asl index f0964d3561..b83fe38daa 100644 --- a/src/mainboard/lenovo/t420s/dsdt.asl +++ b/src/mainboard/lenovo/t420s/dsdt.asl @@ -35,4 +35,5 @@ DefinitionBlock( } #include <southbridge/intel/common/acpi/sleepstates.asl> + #include <ec/lenovo/h8/acpi/thinklight.asl> } |