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realtek: netgear-gigabit: Add gpio-restart node 

The Netgear GS110TPP v1 switch cannot reliably perform cold reboots
using the system's internal reset controller.

On this device, and the other supported Netgear switches, internal GPIO
line 13 is connected to the system's hard reset logic. Expose this GPIO
on all systems to ensure restarts work properly.

Cc: Raylynn Knight <rayknight@me.com>
Cc: Michael Mohr <akihana@gmail.com>
Cc: Stijn Segers <foss@volatilesystems.org>
Cc: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Bjørn Mork <bjorn@mork.no>
This commit is contained in:
Sander Vanheule 2021-11-25 06:41:59 +01:00 committed by Hauke Mehrtens
parent 3f4d6da453
commit 22f85d63cf
1 changed files with 6 additions and 0 deletions
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6
target/linux/realtek/dts-5.10/rtl8380_netgear_gigabit.dtsi
View File

@ -22,6 +22,12 @@
linux,code = <KEY_RESTART>;
};
};
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
open-source;
};
};
&gpio0 {