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ARM: tegra: Enable cros-ec-spi as wake source

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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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Mark Hasemeyer 2024-01-02 14:07:29 -07:00 committed by Thierry Reding
parent 6613476e22
commit a6e0afc29a
2 changed files with 2 additions and 0 deletions
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1
arch/arm/boot/dts/nvidia/tegra124-nyan.dtsi
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@ -338,6 +338,7 @@ cros_ec: cros-ec@0 {
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(C, 7) IRQ_TYPE_LEVEL_LOW>;
reg = <0>;
wakeup-source;
google,cros-ec-spi-msg-delay = <2000>;

1
arch/arm/boot/dts/nvidia/tegra124-venice2.dts
View File

@ -857,6 +857,7 @@ cros_ec: cros-ec@0 {
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(C, 7) IRQ_TYPE_LEVEL_LOW>;
reg = <0>;
wakeup-source;
google,cros-ec-spi-msg-delay = <2000>;