realtek: HPE 1920 24G PoE+ 180W/370W move fans to hwmon

Apply the equivalent of commit f64541db020e ("realtek: HPE 1920 8G PoE+
180W move fans to hwmon") to the 24-ports variants of the HPE 1920 PoE+
switches, with model numbers JG925A and JG926A.

Copy from the original commit message:

  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.

As the init script 03_gpio_switches does not perform any action after
removing these devices from it, the file can be dropped.

Link: https://github.com/openwrt/openwrt/pull/17598
Signed-off-by: Fabian Groffen <[email protected]>
Signed-off-by: Sander Vanheule <[email protected]>

target/linux/realtek/base-files/etc/board.d/03_gpio_switches

@@ -1,17 +0,0 @@
-
-. /lib/functions/uci-defaults.sh
-
-board_config_update
-
-board=$(board_name)
-
-case "$board" in
-hpe,1920-24g-poe-180w|\
-hpe,1920-24g-poe-370w)
-	ucidef_add_gpio_switch "fan_ctrl" "Fan control" "456" "0"
-	;;
-esac
-
-board_config_flush
-
-exit 0

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

@@ -8,7 +8,9 @@
 board_config_update
 
 case "$(board_name)" in
-	hpe,1920-8g-poe-180w)
+	hpe,1920-8g-poe-180w | \
+	hpe,1920-24g-poe-180w | \
+	hpe,1920-24g-poe-370w)
 		ucidef_set_compat_version "1.1"
 	;;
 	zyxel,gs1900-8 | \

target/linux/realtek/dts/rtl8382_hpe_1920-24g-poe-180w.dts

@@ -5,6 +5,17 @@
 / {
 	compatible = "hpe,1920-24g-poe-180w", "realtek,rtl838x-soc";
 	model = "HPE 1920-24G-PoE+ 180W (JG925A)";
+
+	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 {

target/linux/realtek/dts/rtl8382_hpe_1920-24g-poe-370w.dts

@@ -5,6 +5,17 @@
 / {
 	compatible = "hpe,1920-24g-poe-370w", "realtek,rtl838x-soc";
 	model = "HPE 1920-24G-PoE+ 370W (JG926A)";
+
+	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 {

target/linux/realtek/image/rtl838x.mk

@@ -147,18 +147,20 @@ TARGET_DEVICES += hpe_1920-24g
 
 define Device/hpe_1920-24g-poe-180w
   $(Device/hpe_1920)
+  $(Device/hwmon-fan-migration)
   SOC := rtl8382
   DEVICE_MODEL := 1920-24G-PoE+ 180W (JG925A)
-  DEVICE_PACKAGES += realtek-poe
+  DEVICE_PACKAGES += realtek-poe kmod-hwmon-gpiofan
   H3C_DEVICE_ID := 0x00010028
 endef
 TARGET_DEVICES += hpe_1920-24g-poe-180w
 
 define Device/hpe_1920-24g-poe-370w
   $(Device/hpe_1920)
+  $(Device/hwmon-fan-migration)
   SOC := rtl8382
   DEVICE_MODEL := 1920-24G-PoE+ 370W (JG926A)
-  DEVICE_PACKAGES += realtek-poe
+  DEVICE_PACKAGES += realtek-poe kmod-hwmon-gpiofan
   H3C_DEVICE_ID := 0x00010029
 endef
 TARGET_DEVICES += hpe_1920-24g-poe-370w