From: Mathias Kresin <dev@kresin.me>
Date: Fri, 26 Jan 2018 22:36:50 +0000 (+0100)
Subject: base-files: add more name source to get_dt_led helper function
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4f4fc993db4cd074fb2b51586dadd10e882604ec;p=openwrt%2Fstaging%2Fthess.git

base-files: add more name source to get_dt_led helper function

Not all LED driver are using the label devicetree property for the led
name. Add support for the TI/National Semiconductor LP55xx Led Drivers,
which are using the chan-name property for the led name, as fallback.

Signed-off-by: Mathias Kresin <dev@kresin.me>
---

diff --git a/package/base-files/files/lib/functions/leds.sh b/package/base-files/files/lib/functions/leds.sh
index 83e775fada..e4423b4cc8 100644
--- a/package/base-files/files/lib/functions/leds.sh
+++ b/package/base-files/files/lib/functions/leds.sh
@@ -8,7 +8,10 @@ get_dt_led() {
 	local nodepath="$basepath/aliases/led-$1"
 
 	[ -f "$nodepath" ] && ledpath=$(cat "$nodepath")
-	[ -n "$ledpath" ] && label=$(cat "$basepath$ledpath/label")
+	[ -n "$ledpath" ] && \
+		label=$(cat "$basepath$ledpath/label" 2>/dev/null) || \
+		label=$(cat "$basepath$ledpath/chan-name" 2>/dev/null) || \
+		echo "led label not found" 1>&2
 
 	echo "$label"
 }