[source] lantiq: improve DGN3500 LED definitions

[LEDE Commits]

mkresin pushed a commit to source.git, branch master:
https://git.lede-project.org/e1d433b293ae12037947d8e168f8080534fa3d37

commit e1d433b293ae12037947d8e168f8080534fa3d37
Author: Kevin Darbyshire-Bryant <kevin at darbyshire-bryant.me.uk>
AuthorDate: Mon Apr 17 16:06:40 2017 +0100

    lantiq: improve DGN3500 LED definitions
    
    Add red:internet led on gpio 30 previously claimed as missing.
    Wifi led was claimed as blue however there are no blue leds on the
    board at all.  Actually there are two wifi leds, green & amber so add
    definitions for those.  Make the newly discovered green wifi led gpio
    14 the default.
    
    There is no amber power led on this board. The mention of the amber
    power led in the manual means power red and power green at the same
    time.
    
    Signed-off-by: Kevin Darbyshire-Bryant <kevin at darbyshire-bryant.me.uk>
    [removed unnecessary aliases, add migration script]
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 .../base-files/etc/uci-defaults/01_led_migration   | 54 ++++++++++++++++++++++
 target/linux/lantiq/dts/DGN3500.dtsi               | 20 ++++----
 2 files changed, 65 insertions(+), 9 deletions(-)

diff --git a/target/linux/lantiq/base-files/etc/uci-defaults/01_led_migration b/target/linux/lantiq/base-files/etc/uci-defaults/01_led_migration
new file mode 100644
index 0000000..130694a
--- /dev/null
+++ b/target/linux/lantiq/base-files/etc/uci-defaults/01_led_migration
@@ -0,0 +1,54 @@
+#!/bin/sh
+#
+# Copyright (C) 2013 OpenWrt.org
+#
+
+LED_OPTIONS_CHANGED=0
+
+. /lib/functions.sh
+
+do_led_update_sysfs()
+{
+	local cfg=$1; shift
+	local tuples="$@"
+	local sysfs
+	local name
+
+	config_get sysfs $cfg sysfs
+	config_get name $cfg name
+
+	[ -z "$sysfs" ] && return
+
+	for tuple in $tuples; do
+		local old=${tuple%=*}
+		local new=${tuple#*=}
+		local new_sysfs
+
+		new_sysfs=$(echo ${sysfs} | sed "s/${old}/${new}/")
+
+		[ "$new_sysfs" = "$sysfs" ] && continue
+
+		uci set system.${cfg}.sysfs="${new_sysfs}"
+		LED_OPTIONS_CHANGED=1
+
+		logger -t led-migration "sysfs option of LED \"${name}\" updated to ${new_sysfs}"
+	done;
+}
+
+migrate_leds()
+{
+	config_load system
+	config_foreach do_led_update_sysfs led "$@"
+}
+
+case "$(board_name)" in
+DGN3500*)
+	migrate_leds "dgn3500:blue:wireless=dgn3500:green:wireless"
+	;;
+*)
+	;;
+esac
+
+[ "$LED_OPTIONS_CHANGED" = "1" ] && uci commit system
+
+exit 0
diff --git a/target/linux/lantiq/dts/DGN3500.dtsi b/target/linux/lantiq/dts/DGN3500.dtsi
index e155577..890b49f 100644
--- a/target/linux/lantiq/dts/DGN3500.dtsi
+++ b/target/linux/lantiq/dts/DGN3500.dtsi
@@ -15,7 +15,7 @@
 		led-dsl = &dsl;
 		led-internet = &internet;
 		led-usb = &usb;
-		led-wifi = &wifi;
+		led-wifi = &wifi_green;
 	};
 
 	memory at 0 {
@@ -106,9 +106,10 @@
 			label = "dgn3500:green:internet";
 			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
 		};
-		/*
-			internet red is missing
-		*/
+		internet2 {
+			label = "dgn3500:red:internet";
+			gpios = <&gpio 30 GPIO_ACTIVE_LOW>;
+		};
 		dsl: dsl {
 			label = "dgn3500:green:dsl";
 			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
@@ -126,11 +127,12 @@
 			label = "dgn3500:red:power";
 			gpios = <&gpio 39 GPIO_ACTIVE_LOW>;
 		};
-		/*
-			power amber is missing
-		*/
-		wifi: wifi {
-			label = "dgn3500:blue:wireless";
+		wifi_green: wifi {
+			label = "dgn3500:green:wireless";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+		wifi2 {
+			label = "dgn3500:amber:wireless";
 			gpios = <&gpio 51 GPIO_ACTIVE_LOW>;
 		};
 		wps {