linux-kernel - [PATCH] arm64: dts: qcom: sc8280xp-lenovo-thinkpad-x13s: Add LID switch

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Date:   Sat, 30 Jul 2022 12:36:17 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: sc8280xp-lenovo-thinkpad-x13s: Add LID switch

Add gpio-keys for exposing the LID switch state.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index 84dc92dda0b8..f3246cc13d15 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -7,6 +7,8 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 
 #include "sc8280xp.dtsi"
@@ -26,6 +28,21 @@ backlight {
 		pinctrl-0 = <&edp_bl_en>, <&edp_bl_pwm>;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&hall_int_state>;
+
+		switch-lid {
+			gpios = <&tlmm 107 GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			wakeup-source;
+			wakeup-event-action = <EV_ACT_DEASSERTED>;
+		};
+	};
+
 	vreg_edp_bl: regulator-edp-bl {
 		compatible = "regulator-fixed";
 
@@ -347,6 +364,14 @@ reset {
 		};
 	};
 
+	hall_int_state: hall-int-state {
+		pins = "gpio107";
+		function = "gpio";
+
+		input-enable;
+		bias-disable;
+	};
+
 	qup0_i2c4_default: qup0-i2c4-default-state {
 		pins = "gpio171", "gpio172";
 		function = "qup4";
-- 
2.35.1