arm64: dts: rockchip: Use "regulator-fixed" for btreg on px30-engicam for vcc3v3-btreg

The vcc3v3-btreg regulator only has 1 state and no state gpios defined,
so "regulator-gpio" is not the correct binding to use. "regulator-fixed"
is the correct binding to use. It supports an enable GPIO which is
needed in this case.

Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250409205047.1522943-1-robh@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: robherring

arch/arm64/boot/dts/rockchip/px30-engicam-common.dtsi

@@ -31,15 +31,14 @@
 	};
 
 	vcc3v3_btreg: vcc3v3-btreg {
-		compatible = "regulator-gpio";
+		compatible = "regulator-fixed";
 		enable-active-high;
 		pinctrl-names = "default";
 		pinctrl-0 = <&bt_enable_h>;
 		regulator-name = "btreg-gpio-supply";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		regulator-always-on;
-		states = <3300000 0x0>;
 	};
 
 	vcc3v3_rf_aux_mod: regulator-vcc3v3-rf-aux-mod {

arch/arm64/boot/dts/rockchip/px30-engicam-ctouch2.dtsi

@@ -26,5 +26,5 @@
 };
 
 &vcc3v3_btreg {
-	enable-gpios = <&gpio1 RK_PC3 GPIO_ACTIVE_HIGH>;
+	gpios = <&gpio1 RK_PC3 GPIO_ACTIVE_HIGH>;
 };

arch/arm64/boot/dts/rockchip/px30-engicam-px30-core-edimm2.2.dts

@@ -39,5 +39,5 @@
 };
 
 &vcc3v3_btreg {
-	enable-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
+	gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
 };