linux-kernel - [PATCH 6/7] arm64: dts: rockchip: Add user button to Radxa E20C

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

Message-ID: <20250228064024.3200000-7-jonas@kwiboo.se>
Date: Fri, 28 Feb 2025 06:40:12 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Yao Zi <ziyao@...root.org>,
	linux-rockchip@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Jonas Karlman <jonas@...boo.se>
Subject: [PATCH 6/7] arm64: dts: rockchip: Add user button to Radxa E20C

Radxa E20C has two buttons, one SARADC maskrom button and one GPIO user
button.

Add support for the user button using a gpio-keys node.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
 .../boot/dts/rockchip/rk3528-radxa-e20c.dts   | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
index b9a66c6a1dfb..d19e319b4100 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
@@ -32,6 +32,19 @@ button-maskrom {
 		};
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&user_key>;
+
+		button-user {
+			gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>;
+			label = "USER";
+			linux,code = <BTN_1>;
+			wakeup-source;
+		};
+	};
+
 	vcc_1v8: regulator-1v8-vcc {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_1v8";
@@ -62,6 +75,14 @@ vcc5v0_sys: regulator-5v0-vcc-sys {
 	};
 };
 
+&pinctrl {
+	gpio-keys {
+		user_key: user-key {
+			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
 &saradc {
 	vref-supply = <&vcc_1v8>;
 	status = "okay";
-- 
2.48.1