Thread (1 message) 1 message, 1 author, 2025-09-08

Re: [PATCH] arm64: dts: allwiner: h5: OrangePi PC2: add ethernet LEDs

From: Jernej Škrabec <jernej.skrabec@gmail.com>
Date: 2025-09-08 22:57:49
Also in: linux-arm-kernel, linux-sunxi, lkml

Dne torek, 9. september 2025 ob 00:11:46 Srednjeevropski poletni čas je Aleksander Jan Bajkowski napisal(a):
Hi Jernej,

On 9/8/25 16:45, Jernej Škrabec wrote:
quoted
Dne ponedeljek, 18. avgust 2025 ob 18:35:13 Srednjeevropski poletni čas je Aleksander Jan Bajkowski napisal(a):
quoted
This patch adds support for Ethernet LEDs.
How did you tested this? According to linux-sunxi wiki, this board has
RTL8211E, while LED control is supported only with RTL8211F driver.

For testing, I used OpenWRT snapshot with kernel 6.12. OpenWRT backported
patches from kernel 6.16 that add LED control support. Realtek RTL8211E
supports LED control since commit:
708686132ba02659267c0cebcc414348ece389a5 ("net: phy: realtek: Add 
support for PHY LEDs on RTL8211E")
Ah, I haven't checked the latest code. Alright.
quoted
quoted
Signed-off-by: Aleksander Jan Bajkowski<redacted>
---
  .../dts/allwinner/sun50i-h5-orangepi-pc2.dts  | 20 +++++++++++++++++++
  1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
index 0f29da7d51e6..7688f565ec9b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
@@ -7,6 +7,7 @@
  
  #include <dt-bindings/gpio/gpio.h>
  #include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
  #include <dt-bindings/pinctrl/sun4i-a10.h>
  
  / {
@@ -132,6 +133,25 @@ &external_mdio {
  	ext_rgmii_phy: ethernet-phy@1 {
  		compatible = "ethernet-phy-ieee802.3-c22";
  		reg = <1>;
+
+		leds {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_GREEN>;
+				function = LED_FUNCTION_LAN;
+				linux,default-trigger = "netdev";
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_AMBER>;
+				function = LED_FUNCTION_LAN;
+				linux,default-trigger = "netdev";
+			};
Schematic says LED0 is "Yellow" or Amber in this DT. So LED1 should be green.

Also, I'm not sure if trigger really needs to be added, since PHY network
will set it as such.
I think there is a mistake in the schematic. Setting the trigger on LED0
illuminates the green LED. My tests found that the netdev trigger isn't
set by default.
Ok.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

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