Revert "arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection"

This reverts commit 531fdbe.

Hardware that uses I2C wasn't designed with high speeds in mind, so
communication with PMIC via RSB can intermittently fail. Go back to I2C
as higher speed and efficiency isn't worth the trouble.

Fixes: 531fdbe ("arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection")
Link: LibreELEC/LibreELEC.tv#7731
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250413135848.67283-1-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

Author: jernejsk

arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts

@@ -152,28 +152,12 @@
 	vcc-pg-supply = <&reg_aldo1>;
 };
 
-&r_ir {
-	linux,rc-map-name = "rc-beelink-gs1";
-	status = "okay";
-};
-
-&r_pio {
-	/*
-	 * FIXME: We can't add that supply for now since it would
-	 * create a circular dependency between pinctrl, the regulator
-	 * and the RSB Bus.
-	 *
-	 * vcc-pl-supply = <&reg_aldo1>;
-	 */
-	vcc-pm-supply = <&reg_aldo1>;
-};
-
-&r_rsb {
+&r_i2c {
 	status = "okay";
 
-	axp805: pmic@745 {
+	axp805: pmic@36 {
 		compatible = "x-powers,axp805", "x-powers,axp806";
-		reg = <0x745>;
+		reg = <0x36>;
 		interrupt-parent = <&r_intc>;
 		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-controller;
@@ -291,6 +275,22 @@
 	};
 };
 
+&r_ir {
+	linux,rc-map-name = "rc-beelink-gs1";
+	status = "okay";
+};
+
+&r_pio {
+	/*
+	 * PL0 and PL1 are used for PMIC I2C
+	 * don't enable the pl-supply else
+	 * it will fail at boot
+	 *
+	 * vcc-pl-supply = <&reg_aldo1>;
+	 */
+	vcc-pm-supply = <&reg_aldo1>;
+};
+
 &spdif {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spdif_tx_pin>;

arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts

@@ -176,16 +176,12 @@
 	vcc-pg-supply = <&reg_vcc_wifi_io>;
 };
 
-&r_ir {
-	status = "okay";
-};
-
-&r_rsb {
+&r_i2c {
 	status = "okay";
 
-	axp805: pmic@745 {
+	axp805: pmic@36 {
 		compatible = "x-powers,axp805", "x-powers,axp806";
-		reg = <0x745>;
+		reg = <0x36>;
 		interrupt-parent = <&r_intc>;
 		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-controller;
@@ -296,6 +292,10 @@
 	};
 };
 
+&r_ir {
+	status = "okay";
+};
+
 &rtc {
 	clocks = <&ext_osc32k>;
 };

arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi

@@ -113,20 +113,12 @@
 	vcc-pg-supply = <&reg_aldo1>;
 };
 
-&r_ir {
-	status = "okay";
-};
-
-&r_pio {
-	vcc-pm-supply = <&reg_bldo3>;
-};
-
-&r_rsb {
+&r_i2c {
 	status = "okay";
 
-	axp805: pmic@745 {
+	axp805: pmic@36 {
 		compatible = "x-powers,axp805", "x-powers,axp806";
-		reg = <0x745>;
+		reg = <0x36>;
 		interrupt-parent = <&r_intc>;
 		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-controller;
@@ -241,6 +233,14 @@
 	};
 };
 
+&r_ir {
+	status = "okay";
+};
+
+&r_pio {
+	vcc-pm-supply = <&reg_bldo3>;
+};
+
 &rtc {
 	clocks = <&ext_osc32k>;
 };