realtek: add PoE enable line to Netgear GS110TPP

By switching to the new RTL8231 driver in commit b7af54d5c18c ("realtek:
Simple conversions to RTL8231 MFD driver"), the bootloader state of the
RTL8231's pins is now maintained. As the bootloader de-asserts the PoE
enable signal, this means PoE output is no longer available.

Add a gpio-hog with high output, restoring the line value from when the
pin was configured (by default) as an input with a pull-up resistor.
This will hard-enable the PoE output, but the individual ports can still
be administratively disabled by realtek-poe or a similar tool.

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

diff --git a/target/linux/realtek/dts/rtl8380_netgear_gs110tpp-v1.dts b/target/linux/realtek/dts/rtl8380_netgear_gs110tpp-v1.dts
index f694ae3317c6851938888010faa5698c08beac0d..d25b81c3cb5cf3048e056440eceb1f955f50888e 100644 (file)
--- a/target/linux/realtek/dts/rtl8380_netgear_gs110tpp-v1.dts
+++ b/target/linux/realtek/dts/rtl8380_netgear_gs110tpp-v1.dts
@@ -37,6 +37,15 @@
        };
 };
 
+&gpio1 {
+       poe-enable {
+               gpio-hog;
+               gpios = <10 GPIO_ACTIVE_HIGH>;
+               output-high;
+               line-name = "poe-enable";
+       };
+};
+
 &firmware {
        openwrt,ih-magic = <0x4e474520>;
 };