linux-kernel - [PATCH 9/9] mips: dts: realtek: Add restart to Cisco SG220-26P

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Message-ID: <20250119183424.259353-10-sander@svanheule.net>
Date: Sun, 19 Jan 2025 19:34:24 +0100
From: Sander Vanheule <sander@...nheule.net>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Chris Packham <chris.packham@...iedtelesis.co.nz>,
	devicetree@...r.kernel.org,
	linux-mips@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Sander Vanheule <sander@...nheule.net>
Subject: [PATCH 9/9] mips: dts: realtek: Add restart to Cisco SG220-26P

Define a gpio-restart node to the Cisco SG220-26P so the device can be
rebooted using the SoC's hard reset pin. Set the priority to 192 so the
gpio-restart method takes priority over the watchdog restart.

Signed-off-by: Sander Vanheule <sander@...nheule.net>
---
 arch/mips/boot/dts/realtek/cisco_sg220-26.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/mips/boot/dts/realtek/cisco_sg220-26.dts b/arch/mips/boot/dts/realtek/cisco_sg220-26.dts
index cb85d172a1d3..fab3d552404d 100644
--- a/arch/mips/boot/dts/realtek/cisco_sg220-26.dts
+++ b/arch/mips/boot/dts/realtek/cisco_sg220-26.dts
@@ -4,6 +4,8 @@
 
 #include "rtl838x.dtsi"
 
+#include <dt-bindings/gpio/gpio.h>
+
 / {
 	model = "Cisco SG220-26";
 	compatible = "cisco,sg220-26", "realtek,rtl8382-soc";
@@ -17,6 +19,13 @@ memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x8000000>;
 	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+		priority = <192>;
+		open-source;
+	};
 };
 
 &uart0 {
-- 
2.48.1