[PATCH] ramips: do not use GPIO function on switch pins on certain devices

Arınç ÜNAL arinc.unal at arinc9.com
Wed Oct 19 04:43:00 PDT 2022


The pins of the MT7530 switch that translate to GPIO 0, 3, 6, 9 and 12 has
got a function, by default, which does the same thing as the netdev
trigger. Because of bridge offloading on DSA, the netdev trigger won't see
the frames between the switch ports whilst the default function will.

Do not use the GPIO function on switch pins on devices that fall under this
category.

Keep it for:

mt7621_belkin_rt1800.dts: There's only one LED which is for the wan
interface and there's no bridge offloading between the "wan" interface and
other interfaces.

mt7621_yuncore_ax820.dts: There's no bridge offloading between the "wan"
and "lan" interfaces.

Signed-off-by: Arınç ÜNAL <arinc.unal at arinc9.com>
---
 .../linux/ramips/dts/mt7621_linksys_e7350.dts | 37 -------------------
 .../ramips/dts/mt7621_netgear_wax202.dts      | 18 ---------
 .../ramips/dts/mt7621_zbtlink_zbt-wg1608.dtsi | 37 -------------------
 .../mt7621/base-files/etc/board.d/01_leds     | 17 ---------
 4 files changed, 109 deletions(-)

diff --git a/target/linux/ramips/dts/mt7621_linksys_e7350.dts b/target/linux/ramips/dts/mt7621_linksys_e7350.dts
index d7b8c214b9..ea8a684148 100644
--- a/target/linux/ramips/dts/mt7621_linksys_e7350.dts
+++ b/target/linux/ramips/dts/mt7621_linksys_e7350.dts
@@ -57,40 +57,6 @@
 			function = LED_FUNCTION_WAN;
 			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
 		};
-
-		led-wan2 {
-			color = <LED_COLOR_ID_BLUE>;
-			function = LED_FUNCTION_WAN;
-			gpios = <&switch0 0 GPIO_ACTIVE_LOW>;
-		};
-
-		led-lan4 {
-			color = <LED_COLOR_ID_BLUE>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <4>;
-			gpios = <&switch0 3 GPIO_ACTIVE_LOW>;
-		};
-
-		led-lan3 {
-			color = <LED_COLOR_ID_BLUE>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <3>;
-			gpios = <&switch0 6 GPIO_ACTIVE_LOW>;
-		};
-
-		led-lan2 {
-			color = <LED_COLOR_ID_BLUE>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <2>;
-			gpios = <&switch0 9 GPIO_ACTIVE_HIGH>;
-		};
-
-		led-lan1 {
-			color = <LED_COLOR_ID_BLUE>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <1>;
-			gpios = <&switch0 12 GPIO_ACTIVE_LOW>;
-		};
 	};
 };
 
@@ -185,9 +151,6 @@
 };
 
 &switch0 {
-	gpio-controller;
-	#gpio-cells = <2>;
-
 	ports {
 		port at 1 {
 			status = "okay";
diff --git a/target/linux/ramips/dts/mt7621_netgear_wax202.dts b/target/linux/ramips/dts/mt7621_netgear_wax202.dts
index f17a805363..02f540d743 100644
--- a/target/linux/ramips/dts/mt7621_netgear_wax202.dts
+++ b/target/linux/ramips/dts/mt7621_netgear_wax202.dts
@@ -53,31 +53,16 @@
 			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
 		};
 
-		led_lan1_green: lan1_green {
-			label = "green:lan1";
-			gpios = <&switch0 3 GPIO_ACTIVE_LOW>;
-		};
-
 		led_lan1_orange: lan1_orange {
 			label = "orange:lan1";
 			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
 		};
 
-		led_lan2_green: lan2_green {
-			label = "green:lan2";
-			gpios = <&switch0 6 GPIO_ACTIVE_LOW>;
-		};
-
 		led_lan2_orange: lan2_orange {
 			label = "orange:lan2";
 			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
 		};
 
-		led_lan3_green: lan3_green {
-			label = "green:lan3";
-			gpios = <&switch0 12 GPIO_ACTIVE_LOW>;
-		};
-
 		led_lan3_orange: lan3_orange {
 			label = "orange:lan3";
 			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
@@ -256,9 +241,6 @@
 };
 
 &switch0 {
-	gpio-controller;
-	#gpio-cells = <2>;
-
 	ports {
 		port at 1 {
 			status = "okay";
diff --git a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1608.dtsi b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1608.dtsi
index f19cb4db17..59fab90ed1 100644
--- a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1608.dtsi
+++ b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1608.dtsi
@@ -51,40 +51,6 @@
 			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "phy1tpt";
 		};
-
-		lan1 {
-			color = <LED_COLOR_ID_GREEN>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <1>;
-			gpios = <&switch0 0 GPIO_ACTIVE_LOW>;
-		};
-
-		lan2 {
-			color = <LED_COLOR_ID_GREEN>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <2>;
-			gpios = <&switch0 3 GPIO_ACTIVE_LOW>;
-		};
-
-		lan3 {
-			color = <LED_COLOR_ID_GREEN>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <3>;
-			gpios = <&switch0 6 GPIO_ACTIVE_LOW>;
-		};
-
-		lan4 {
-			color = <LED_COLOR_ID_GREEN>;
-			function = LED_FUNCTION_LAN;
-			function-enumerator = <4>;
-			gpios = <&switch0 9 GPIO_ACTIVE_HIGH>;
-		};
-
-		wan {
-			color = <LED_COLOR_ID_GREEN>;
-			function = LED_FUNCTION_WAN;
-			gpios = <&switch0 12 GPIO_ACTIVE_LOW>;
-		};
 	};
 };
 
@@ -186,9 +152,6 @@
 };
 
 &switch0 {
-	gpio-controller;
-	#gpio-cells = <2>;
-
 	ports {
 		port at 0 {
 			status = "okay";
diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 5ffa4ecb3a..b98cc623a6 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -73,13 +73,6 @@ gnubee,gb-pc2)
 linksys,e5600)
 	ucidef_set_led_netdev "wan" "wan link" "blue:wan" "wan" "link"
 	;;
-linksys,e7350)
-	ucidef_set_led_netdev "lan1" "lan1" "blue:lan-1" "lan1"
-	ucidef_set_led_netdev "lan2" "lan2" "blue:lan-2" "lan2"
-	ucidef_set_led_netdev "lan3" "lan4" "blue:lan-3" "lan3"
-	ucidef_set_led_netdev "lan4" "lan4" "blue:lan-4" "lan4"
-	ucidef_set_led_netdev "wan" "wan" "blue:wan" "wan"
-	;;
 linksys,ea6350-v4|\
 linksys,ea7300-v1|\
 linksys,ea7300-v2|\
@@ -127,9 +120,6 @@ netgear,r7450)
 	;;
 netgear,wax202)
 	ucidef_set_led_netdev "internet" "Internet" "green:net" "wan"
-	ucidef_set_led_netdev "lan1" "LAN1" "green:lan1" "lan1"
-	ucidef_set_led_netdev "lan2" "LAN2" "green:lan2" "lan2"
-	ucidef_set_led_netdev "lan3" "LAN3" "green:lan3" "lan3"
 	;;
 oraybox,x3a)
 	ucidef_set_led_netdev "wan" "wan link" "red:status" "wan"
@@ -174,13 +164,6 @@ yuncore,ax820)
 	ucidef_set_led_netdev "lan" "LAN" "green:lan" "lan"
 	ucidef_set_led_netdev "wan" "WAN" "green:wan" "wan"
 	;;
-zbtlink,zbt-wg1608-16m)
-	ucidef_set_led_netdev "lan1" "LAN1" "green:lan-1" "lan1"
-	ucidef_set_led_netdev "lan2" "LAN2" "green:lan-2" "lan2"
-	ucidef_set_led_netdev "lan3" "LAN3" "green:lan-3" "lan3"
-	ucidef_set_led_netdev "lan4" "LAN4" "green:lan-4" "lan4"
-	ucidef_set_led_netdev "wan" "WAN" "green:wan" "wan"
-	;;
 zyxel,lte3301-plus)
 	ucidef_set_led_netdev "internet" "internet" "white:internet" "wwan0"
 	;;
-- 
2.34.1




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