[PATCH] ARM: dts: nuvoton,wpcm450-supermicro-x9sci-ln4f: Add GPIO line names

[Jonathan Neuschäfer <j.neuschaefer@xxxxxxx>]

To make gpioinfo output more useful and enable gpiofind usage, add line
names for GPIOs where the function is known.

This patch follows the naming convention defined for OpenBMC, as much as
possible:

  https://github.com/openbmc/docs/blob/master/designs/device-tree-gpio-naming.md

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@xxxxxxx>
---
 .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
index 26fed97f8ff4a..d4472ffdac928 100644
--- a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
+++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
@@ -58,6 +58,24 @@ heartbeat {
 	};
 };

+&gpio0 {
+	gpio-line-names =
+		/* 0 */ "", "host-reset-control-n", "", "", "", "", "", "",
+		/* 8 */ "", "", "", "", "power-chassis-control-n", "", "uid-button", "";
+};
+
+&gpio1 {
+	gpio-line-names =
+		/* 0 */ "", "", "", "", "led-heartbeat", "", "", "led-uid",
+		/* 8 */ "", "", "", "", "", "", "", "";
+};
+
+&gpio4 {
+	gpio-line-names =
+		/* 0 */ "", "", "", "", "", "", "", "",
+		/* 8 */ "", "", "", "", "", "", "", "power-chassis-good";
+};
+
 &pinctrl {
 	key_pins: mux-keys {
 		groups = "gspi", "sspi";
--
2.35.1