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realtek: rtl839x: support GS1900-48 A1 port LEDs

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Add the RTL8231 controlling the port LEDs to the devicetree, so users
can enable them. Using the appropriate link name, the netdev trigger can
be used to reflect the port status. As no hardware port status
offloading is supported, blinking on traffic could result in increased
load due to the numerous LED updates.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
This commit is contained in:
Sander Vanheule 2026-02-19 16:13:06 +01:00
parent 5592faaa07
commit ce342ee8d3
1 changed files with 94 additions and 1 deletions
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95
target/linux/realtek/dts/rtl8393_zyxel_gs1900-48-a1.dts
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@ -2,8 +2,9 @@
#include "rtl839x.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
/ {
compatible = "zyxel,gs1900-48-a1", "realtek,rtl8393-soc";
@ -83,9 +84,101 @@
};
};
#define PORT_LED(lan, p, l) \
led@p,l { \
reg = <p l>; \
color = <LED_COLOR_ID_GREEN>; \
function = LED_FUNCTION_LAN; \
function-enumerator = <lan>; \
}
&mdio_aux {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&port_led_offload>;
port_leds: expander@0 {
compatible = "realtek,rtl8231";
reg = <0>;
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&port_leds 0 0 37>;
led_matrix: led-scan-single {
pins = "gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5",
"gpio6", "gpio7", "gpio8", "gpio9", "gpio10", "gpio11",
"gpio12", "gpio13", "gpio14", "gpio15", "gpio16", "gpio17",
"gpio18", "gpio19";
function = "led";
};
led-controller {
compatible = "realtek,rtl8231-leds";
#address-cells = <2>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&led_matrix>;
realtek,led-scan-mode = "single-color";
// RJ45 ports
PORT_LED(1, 0, 0);
PORT_LED(2, 0, 1);
PORT_LED(3, 0, 2);
PORT_LED(4, 1, 0);
PORT_LED(5, 1, 1);
PORT_LED(6, 1, 2);
PORT_LED(7, 2, 0);
PORT_LED(8, 2, 1);
PORT_LED(9, 2, 2);
PORT_LED(10, 3, 0);
PORT_LED(11, 3, 1);
PORT_LED(12, 3, 2);
PORT_LED(13, 4, 0);
PORT_LED(14, 4, 1);
PORT_LED(15, 4, 2);
PORT_LED(16, 5, 0);
PORT_LED(17, 5, 1);
PORT_LED(18, 5, 2);
PORT_LED(19, 6, 0);
PORT_LED(20, 6, 1);
PORT_LED(21, 6, 2);
PORT_LED(22, 7, 0);
PORT_LED(23, 7, 1);
PORT_LED(24, 7, 2);
PORT_LED(25, 8, 0);
PORT_LED(26, 8, 1);
PORT_LED(27, 8, 2);
PORT_LED(28, 9, 0);
PORT_LED(29, 9, 1);
PORT_LED(30, 9, 2);
PORT_LED(31, 10, 0);
PORT_LED(32, 10, 1);
PORT_LED(33, 10, 2);
PORT_LED(34, 11, 0);
PORT_LED(35, 11, 1);
PORT_LED(36, 11, 2);
PORT_LED(37, 12, 0);
PORT_LED(38, 12, 1);
PORT_LED(39, 12, 2);
PORT_LED(40, 13, 0);
PORT_LED(41, 13, 1);
PORT_LED(42, 13, 2);
PORT_LED(43, 14, 0);
PORT_LED(44, 14, 1);
PORT_LED(45, 14, 2);
PORT_LED(46, 15, 0);
PORT_LED(47, 15, 1);
PORT_LED(48, 15, 2);
// SFP ports
PORT_LED(49, 16, 0);
PORT_LED(50, 16, 1);
};
};
gpio1: expander@3 {
compatible = "realtek,rtl8231";
reg = <3>;