From: Sander Vanheule <sander@svanheule.net>
Date: Wed, 1 Jan 2025 10:01:48 +0000 (+0100)
Subject: realtek: debounce reset key for Zyxel GS1900
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4357f32d41eb4364841cab831bcaf7848695b5d7;p=openwrt%2Fstaging%2Fsvanheule.git

realtek: debounce reset key for Zyxel GS1900

When the reset button is next to the SFP cages, I2C operations on the
modules might cause interference on the button's GPIO line. Add a
debounce-interval of 5 times the poll-interval to ensure the line is
actually stable for some time and not just glitching.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
---

diff --git a/target/linux/realtek/dts/rtl8380_zyxel_gs1900.dtsi b/target/linux/realtek/dts/rtl8380_zyxel_gs1900.dtsi
index b985c4bc8e..59b44ad161 100644
--- a/target/linux/realtek/dts/rtl8380_zyxel_gs1900.dtsi
+++ b/target/linux/realtek/dts/rtl8380_zyxel_gs1900.dtsi
@@ -20,6 +20,7 @@
 
 	keys {
 		compatible = "gpio-keys-polled";
+		debounce-interval = <100>;
 		poll-interval = <20>;
 
 		reset {
diff --git a/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts b/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts
index 9844dc2180..ad3245fc27 100644
--- a/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts
+++ b/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts
@@ -41,6 +41,7 @@
 
 	keys {
 		compatible = "gpio-keys-polled";
+		debounce-interval = <100>;
 		poll-interval = <20>;
 
 		mode {