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realtek: HPE 1920-48G-PoE: allow fan speed control

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The JG928A has an RTL8231 on the aux mdio bus. Add it to dts to expose
the GPIO pins used to control and monitor the fan speed. To enable speed
control, add the appropriate kernel driver module to DEVICE_PACKAGES.

Of note, this does not control all fans for the unit. The power supply
fans are not controlled.

Signed-off-by: Evan Jobling <evan@jobling.au>
Link: https://github.com/openwrt/openwrt/pull/17699
Signed-off-by: Sander Vanheule <sander@svanheule.net>
This commit is contained in:
Evan Jobling 2025-01-23 00:13:35 +00:00 committed by Sander Vanheule
parent 95a4ed8d24
commit cbd1acbad3
2 changed files with 30 additions and 1 deletions
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29
target/linux/realtek/dts/rtl8393_hpe_1920-48g-poe.dts
View File

@ -5,8 +5,37 @@
/ {
compatible = "hpe,1920-48g-poe", "realtek,rtl8393-soc";
model = "HPE 1920-48G-PoE (JG928A)";
gpio_fan_array {
compatible = "gpio-fan";
gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
gpio-fan,speed-map = <5000 0>,
<8200 1>;
alarm-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
#cooling-cells = <2>;
};
};
&uart1 {
status = "okay";
};
&mdio_aux {
status = "okay";
gpio1: expander@0 {
compatible = "realtek,rtl8231";
reg = <0>;
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&gpio1 0 0 37>;
led-controller {
compatible = "realtek,rtl8231-leds";
status = "disabled";
};
};
};

2
target/linux/realtek/image/rtl839x.mk
View File

@ -21,7 +21,7 @@ define Device/hpe_1920-48g-poe
$(Device/hpe_1920)
SOC := rtl8393
DEVICE_MODEL := 1920-48G-PoE (JG928A)
DEVICE_PACKAGES += realtek-poe
DEVICE_PACKAGES += realtek-poe kmod-hwmon-gpiofan
H3C_DEVICE_ID := 0x0001002b
endef
TARGET_DEVICES += hpe_1920-48g-poe