From:   =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>
To:     linux-gpio@vger.kernel.org, devicetree@vger.kernel.org
Cc:     Linus Walleij <linus.walleij@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, openbmc@lists.ozlabs.org,
        Tomer Maimon <tmaimon77@gmail.com>,
        Joel Stanley <joel@jms.id.au>, linux-kernel@vger.kernel.org,
        =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>
Subject: [PATCH v2 8/8] ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons
Date:   Tue,  7 Dec 2021 22:08:23 +0100
Message-Id: <20211207210823.1975632-9-j.neuschaefer@gmx.net>
In-Reply-To: <20211207210823.1975632-1-j.neuschaefer@gmx.net>
References: <20211207210823.1975632-1-j.neuschaefer@gmx.net>
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Precedence: bulk

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 Neusch=C3=A4fer <j.neuschaefer@gmx.net>


=2D--
v2:
- Adjust to new GPIO controller names
- Explicitly set pinmux to GPIO for GPIO keys and LEDs

v1:
- https://lore.kernel.org/lkml/20210602120329.2444672-9-j.neuschaefer@gmx.=
net/
=2D--
 .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 43 +++++++++++++++++++
 1 file changed, 43 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..cd8d3a6bbf853 100644
=2D-- 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 =3D "Supermicro X9SCi-LN4F BMC";
 	compatible =3D "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450";
@@ -20,6 +23,46 @@ memory@0 {
 		device_type =3D "memory";
 		reg =3D <0 0x08000000>; /* 128 MiB */
 	};
+
+	gpio-keys {
+		compatible =3D "gpio-keys";
+		pinctrl-names =3D "default";
+		pinctrl-0 =3D <&key_pins>;
+
+		uid {
+			label =3D "UID button";
+			linux,code =3D <KEY_HOME>;
+			gpios =3D <&gpio0 14 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio-leds {
+		compatible =3D "gpio-leds";
+		pinctrl-names =3D "default";
+		pinctrl-0 =3D <&led_pins>;
+
+		uid {
+			label =3D "UID";
+			gpios =3D <&gpio1 7 GPIO_ACTIVE_HIGH>;
+		};
+
+		heartbeat {
+			label =3D "heartbeat";
+			gpios =3D <&gpio1 4 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pinctrl {
+	key_pins: mux_keys {
+		groups =3D "gspi", "sspi";
+		function =3D "gpio";
+	};
+
+	led_pins: mux_leds {
+		groups =3D "hg3", "hg0", "pwm4";
+		function =3D "gpio";
+	};
 };

 &serial0 {
=2D-
2.30.2