linux-kernel - [PATCH] arm64: dts: qcom: c630: Expose LID events

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20201125060838.165576-1-bjorn.andersson@linaro.org>
Date:   Wed, 25 Nov 2020 00:08:38 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Steev Klimaszewski <steev@...i.org>,
        Shawn Guo <shawn.guo@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: c630: Expose LID events

The LID state can be read from GPIO 124 and the "tablet mode" from GPIO
95, expose these to the system using gpio-keys and mark the falling edge
of the LID state as a wakeup-source - to wake the system from suspend.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index bb314973eb0c..f956dbf664c1 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -8,6 +8,8 @@
 /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 <dt-bindings/sound/qcom,q6afe.h>
 #include <dt-bindings/sound/qcom,q6asm.h>
@@ -21,6 +23,27 @@ / {
 	aliases {
 		hsuart0 = &uart6;
 	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&lid_pin_active>, <&mode_pin_active>;
+
+		lid {
+			gpios = <&tlmm 124 GPIO_ACTIVE_HIGH>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			wakeup-source;
+			wakeup-event-action = <EV_ACT_DEASSERTED>;
+		};
+
+		mode {
+			gpios = <&tlmm 95 GPIO_ACTIVE_HIGH>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_TABLET_MODE>;
+		};
+	};
 };
 
 &adsp_pas {
@@ -466,6 +489,22 @@ wcd_intr_default: wcd_intr_default {
 		bias-pull-down;
 		drive-strength = <2>;
 	};
+
+	lid_pin_active: lid-pin {
+		pins = "gpio124";
+		function = "gpio";
+
+		input-enable;
+		bias-disable;
+	};
+
+	mode_pin_active: mode-pin {
+		pins = "gpio95";
+		function = "gpio";
+
+		input-enable;
+		bias-disable;
+	};
 };
 
 &uart6 {
-- 
2.29.2