apm821xx: implement new LED label naming scheme

This patch updates all current APM82181 devices over to that
"new LED naming scheme". This includes many updates to the
device-tree:
	- dropped the deprecated, but beloved "label" property.
	- rename all DT leds node names to led-#.
	- add function and color properties.
	- utilized panic-indicator property.
	- dropped led- aliases (see below).

migration scripts for all devices are included.

For more information. See:
<https://www.kernel.org/doc/html/latest/leds/leds-class.html>

For the future: It looks like the color+function properties
won over the dt-alias / label. This will need to be wired up
into openwrt eventually. For APM821xx the situation is that
all devices have a dedicated power and fault indicator.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

1 files changed, 30 insertions, 20 deletions

diff --git a/target/linux/apm821xx/dts/meraki-mx60.dts b/target/linux/apm821xx/dts/meraki-mx60.dts
index fd5464f8a1..06dfa07965 100644
--- a/target/linux/apm821xx/dts/meraki-mx60.dts
+++ b/target/linux/apm821xx/dts/meraki-mx60.dts
@@ -9,6 +9,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/leds/common.h>
 #include "apm82181.dtsi"
 
 / {
@@ -17,10 +18,6 @@
 
 	aliases {
 		serial0 = &UART1;
-		led-boot = &status;
-		led-failsafe = &failsafe;
-		led-running = &status;
-		led-upgrade = &status;
 	};
 
 	chosen {
@@ -116,43 +113,56 @@
 	leds {
 		compatible = "gpio-leds";
 
-		status: power-green {
-			label = "mx60:green:power";
+		led-0 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_POWER;
 			gpios = <&GPIO0 18 GPIO_ACTIVE_LOW>;
 		};
 
-		failsafe: power-orange {
-			label = "mx60:orange:power";
+		led-1 {
+			color = <LED_COLOR_ID_AMBER>;
+			function = LED_FUNCTION_FAULT;
 			gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
+			panic-indicator;
 		};
 
-		wan-green {
-			label = "mx60:green:wan";
+		led-2 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WAN;
 			gpios = <&GPIO0 17 GPIO_ACTIVE_LOW>;
 		};
 
-		wan-orange {
-			label = "mx60:orange:wan";
+		led-3 {
+			color = <LED_COLOR_ID_AMBER>;
+			function = LED_FUNCTION_WAN;
 			gpios = <&GPIO0 15 GPIO_ACTIVE_LOW>;
 		};
 
-		lan1 {
-			label = "mx60:green:lan1";
+		led-4 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <0>;
 			gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
 		};
 
-		lan2 {
-			label = "mx60:green:lan2";
+		led-5 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <1>;
 			gpios = <&GPIO0 21 GPIO_ACTIVE_LOW>;
 		};
 
-		lan3 {
-			label = "mx60:green:lan3";
+		led-6 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <2>;
 			gpios = <&GPIO0 22 GPIO_ACTIVE_LOW>;
 		};
 
-		lan4 {
-			label = "mx60:green:lan4";
+		led-7 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <3>;
 			gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
 		};
 	};