iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: dts: mediatek: mt8195: Enable cros-ec-spi as wake source

Browse Source 
The cros_ec driver currently assumes that cros-ec-spi compatible device
nodes are a wakeup-source even though the wakeup-source property is not
defined.

Some Chromebooks use a separate wake pin, while others overload the
interrupt for wake and IO. With the current assumption, spurious wakes
can occur on systems that use a separate wake pin. It is planned to
update the driver to no longer assume that the EC interrupt pin should
be enabled for wake.

Add the wakeup-source property to all cros-ec-spi compatible device
nodes to signify to the driver that they should still be a valid wakeup
source.

Signed-off-by: Mark Hasemeyer <markhas@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240102140734.v4.12.Iee33a7f1f991408cef372744199026f936bf54e2@changeid
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Mark Hasemeyer 2024-01-02 14:07:36 -07:00 committed by AngeloGioacchino Del Regno
parent 322ebb0e2f
commit 7f79bdfe1c
No known key found for this signature in database
GPG Key ID: 9A3604CFAD978478
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
View File

@ -1149,6 +1149,7 @@
pinctrl-names = "default";
pinctrl-0 = <&cros_ec_int>;
spi-max-frequency = <3000000>;
wakeup-source;
keyboard-backlight {
compatible = "google,cros-kbd-led-backlight";