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.
-Commit-changes: 3
-Update commit message to provide details of the motivation behind the
change
Signed-off-by: Mark Hasemeyer <markhas@xxxxxxxxxxxx>
---
(no changes since v2)
Changes in v2:
-Split by arch/soc
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index bbdcd441c049d..2edb270d0bc2f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -1149,6 +1149,7 @@ cros_ec: ec@0 {
pinctrl-names = "default";
pinctrl-0 = <&cros_ec_int>;
spi-max-frequency = <3000000>;
+ wakeup-source;
keyboard-backlight {
compatible = "google,cros-kbd-led-backlight";
--
2.43.0.472.g3155946c3a-goog
