[PATCH v3 14/24] arm64: dts: qcom: sc7180: Enable cros-ec-spi as wake source

Mark Hasemeyer
2023-12-26T19:22:14Z

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@chromium.org>
---

(no changes since v2)

Changes in v2:
-Split by arch/soc

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index 46aaeba286047..f3a6da8b28901 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -649,6 +649,7 @@ cros_ec: ec@0 {
pinctrl-names = "default";
pinctrl-0 = <&ap_ec_int_l>;
spi-max-frequency = <3000000>;
+ wakeup-source;

cros_ec_pwm: pwm {
compatible = "google,cros-ec-pwm";
--
2.43.0.472.g3155946c3a-goog