[openwrt/openwrt] ipq40xx: add reset button for Google WiFi (Gale)

[LEDE Commits]

blocktrron pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/791550b94fc791866e486e52d3c4d1d0378966ff

commit 791550b94fc791866e486e52d3c4d1d0378966ff
Author: Jan-Niklas Burfeind <git at aiyionpri.me>
AuthorDate: Sun Mar 26 22:50:42 2023 +0200

    ipq40xx: add reset button for Google WiFi (Gale)
    
    Add the external reset button for use with OpenWrt.
    
    Co-authored-by: Brian Norris <computersforpeace at gmail.com>
    Signed-off-by: Jan-Niklas Burfeind <git at aiyionpri.me>
    Reviewed-by: Brian Norris <computersforpeace at gmail.com>
    Tested-by: Brian Norris <computersforpeace at gmail.com>
    Signed-off-by: David Bauer <mail at david-bauer.net>
---
 .../ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-wifi.dts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-wifi.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-wifi.dts
index 65f5933305..e4f47431e5 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-wifi.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-wifi.dts
@@ -49,16 +49,29 @@
 			};
 		};
 	};
+
+	keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&fw_pinmux>;
+		pinctrl-names = "default";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
 };
 
 &tlmm {
-	fw_pinmux {
+	fw_pinmux: fw_pinmux {
 		wp {
 			pins = "gpio53";
 			output-low;
 		};
 		recovery {
 			pins = "gpio57";
+			function = "gpio";
 			bias-none;
 		};
 		developer {