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realtek: HPE 1920 8G PoE+ 180W move fans to hwmon
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The GPIO numbering has changed and is not stable. As a result fan
control via gpio_switch is broken, resulting in errors:
    "export_store: invalid GPIO 456"

Move to using hwmon and gpio-fan. This is by adding gpio_fan_array to
DTS and kmod-hwmon-gpiofan to DEVICE_PACKAGES.

In combination with the new rtl8231 gpio driver the default fan
behaviour will be maximum fan speed.

Bump compat value to 1.1 due to existing config in /etc/config/system
via gpio_switch. Also notify in device compat that fan is now going to
be at bootloader setting (maximum in this case) by default unless turned
down.

Signed-off-by: Evan Jobling <evan@jobling.au>
Link: https://github.com/openwrt/openwrt/pull/17605
Signed-off-by: Sander Vanheule <sander@svanheule.net>
This commit is contained in:
Evan Jobling 2025-01-14 12:13:21 +00:00 committed by Sander Vanheule
parent c9ebd4fb30
commit f64541db02
5 changed files with 24 additions and 2 deletions
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1
target/linux/realtek/base-files/etc/board.d/03_gpio_switches
View File

@ -6,7 +6,6 @@ board_config_update
board=$(board_name)
case "$board" in
hpe,1920-8g-poe-180w|\
hpe,1920-24g-poe-180w|\
hpe,1920-24g-poe-370w)
ucidef_add_gpio_switch "fan_ctrl" "Fan control" "456" "0"

3
target/linux/realtek/base-files/etc/board.d/05_compat-version
View File

@ -8,6 +8,9 @@
board_config_update
case "$(board_name)" in
hpe,1920-8g-poe-180w)
ucidef_set_compat_version "1.1"
;;
zyxel,gs1900-8 | \
zyxel,gs1900-8hp-v1 | \
zyxel,gs1900-8hp-v2 | \

11
target/linux/realtek/dts/rtl8380_hpe_1920-8g-poe-180w.dts
View File

@ -5,6 +5,17 @@
/ {
compatible = "hpe,1920-8g-poe-180w", "realtek,rtl838x-soc";
model = "HPE 1920-8G-PoE+ 180W (JG922A)";
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 {

8
target/linux/realtek/image/common.mk
View File

@ -56,6 +56,14 @@ define Device/hpe_1920
append-metadata
endef
define Device/hwmon-fan-migration
DEVICE_COMPAT_VERSION := 1.1
DEVICE_COMPAT_MESSAGE := Fan control switched to hwmon. Your fans will retain \
bootloader speed unless another control scheme is in place. \
Config cannot be kept due to conflict in gpio_switch config 'fan_ctrl' under \
/etc/config/system.
endef
define Device/zyxel_gs1900
DEVICE_COMPAT_VERSION := 2.0
DEVICE_COMPAT_MESSAGE := Dual firmware paritition merged due to size constraints. \

3
target/linux/realtek/image/rtl838x.mk
View File

@ -120,9 +120,10 @@ TARGET_DEVICES += hpe_1920-8g-poe-65w
define Device/hpe_1920-8g-poe-180w
$(Device/hpe_1920)
$(Device/hwmon-fan-migration)
SOC := rtl8380
DEVICE_MODEL := 1920-8G-PoE+ 180W (JG922A)
DEVICE_PACKAGES += realtek-poe
DEVICE_PACKAGES += realtek-poe kmod-hwmon-gpiofan
H3C_DEVICE_ID := 0x00010025
SUPPORTED_DEVICES += hpe_1920-8g-poe
endef