| Message ID | 20231226122113.v3.14.I2ee94aede9e25932f656c2bdb832be3199fa1291@changeid |
|---|---|
| State | New |
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From: Mark Hasemeyer <markhas@chromium.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
Rob Herring <robh@kernel.org>,
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Rob Herring <robh+dt@kernel.org>,
cros-qcom-dts-watchers@chromium.org,
devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: [PATCH v3 14/24] arm64: dts: qcom: sc7180: Enable cros-ec-spi as wake
source
Date: Tue, 26 Dec 2023 12:21:18 -0700
Message-ID:
<20231226122113.v3.14.I2ee94aede9e25932f656c2bdb832be3199fa1291@changeid>
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| Series |
Improve IRQ wake capability reporting and update the cros_ec driver to use it
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Commit Message
Mark Hasemeyer
Dec. 26, 2023, 7:21 p.m. UTC
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";