linux-kernel - [PATCH 8/8] ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons

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Message-Id: <20210602120329.2444672-9-j.neuschaefer@gmx.net>
Date:   Wed,  2 Jun 2021 14:03:29 +0200
From:   Jonathan Neuschäfer <j.neuschaefer@....net>
To:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, openbmc@...ts.ozlabs.org,
        Tomer Maimon <tmaimon77@...il.com>,
        Joel Stanley <joel@....id.au>, linux-kernel@...r.kernel.org,
        Jonathan Neuschäfer <j.neuschaefer@....net>
Subject: [PATCH 8/8] ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons

The Supermicro X9SCi-LN4F server mainboard has a two LEDs and a button
under the control of the BMC. This patch makes them accessible under
Linux running on the BMC.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
---
 .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
index 83f27fbf4e939..176e22216a75e 100644
--- a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
+++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
@@ -8,6 +8,9 @@

 #include "nuvoton-wpcm450.dtsi"

+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/gpio/gpio.h>
+
 / {
 	model = "Supermicro X9SCi-LN4F BMC";
 	compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450";
@@ -20,6 +23,30 @@ memory@0 {
 		device_type = "memory";
 		reg = <0 0x08000000>; /* 128 MiB */
 	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		uid {
+			label = "UID button";
+			linux,code = <KEY_HOME>;
+			gpios = <&pinctrl 14 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		uid {
+			label = "UID";
+			gpios = <&pinctrl 23 GPIO_ACTIVE_HIGH>;
+		};
+
+		heartbeat {
+			label = "heartbeat";
+			gpios = <&pinctrl 20 GPIO_ACTIVE_LOW>;
+		};
+	};
 };

 &serial0 {
--
2.30.2