diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
deleted file mode 100644
index 4991a6415796..000000000000
--- a/Documentation/devicetree/bindings/mfd/axp20x.txt
+++ /dev/null
@@ -1,272 +0,0 @@
-AXP family PMIC device tree bindings
-
-The axp20x family current members :
-axp152 (X-Powers)
-axp202 (X-Powers)
-axp209 (X-Powers)
-axp221 (X-Powers)
-axp223 (X-Powers)
-axp803 (X-Powers)
-axp806 (X-Powers)
-axp809 (X-Powers)
-axp813 (X-Powers)
-
-The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything
-other than the packaging. Pins are routed separately. As such they should
-be treated as separate entities. The other half is an AC100 RTC/codec
-combo chip. Please see ./ac100.txt for its bindings.
-
-Required properties:
-- compatible: should be one of:
-    * "x-powers,axp152"
-    * "x-powers,axp202"
-    * "x-powers,axp209"
-    * "x-powers,axp221"
-    * "x-powers,axp223"
-    * "x-powers,axp803"
-    * "x-powers,axp806"
-    * "x-powers,axp805", "x-powers,axp806"
-    * "x-powers,axp809"
-    * "x-powers,axp813"
-- reg: The I2C slave address or RSB hardware address for the AXP chip
-- interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
-- interrupt-controller: The PMIC has its own internal IRQs
-- #interrupt-cells: Should be set to 1
-
-Supported common regulator properties, see ../regulator/regulator.txt for
-more information:
-- regulator-ramp-delay: sets the ramp up delay in uV/us
-			AXP20x/DCDC2: 1600, 800
-			AXP20x/LDO3:  1600, 800
-- regulator-soft-start:	enable the output at the lowest possible voltage and
-			only then set the desired voltage
-			AXP20x/LDO3: software-based implementation
-
-Optional properties:
-- x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
-		      AXP152/20X: range:  750-1875, Default: 1.5 MHz
-		      AXP22X/8XX: range: 1800-4050, Default: 3   MHz
-
-- x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is
-			  used as an output pin to control an external
-			  regulator to drive the OTG VBus, rather then
-			  as an input pin which signals whether the
-			  board is driving OTG VBus or not.
-			  (axp221 / axp223 / axp803/ axp813 only)
-
-- x-powers,self-working-mode and
-  x-powers,master-mode: Boolean (axp806 only). Set either of these when the
-			PMIC is wired for self-working mode or master mode.
-			If neither is set then slave mode is assumed.
-			This corresponds to how the MODESET pin is wired.
-
-- <input>-supply: a phandle to the regulator supply node. May be omitted if
-		  inputs are unregulated, such as using the IPSOUT output
-		  from the PMIC.
-
-- regulators: A node that houses a sub-node for each regulator. Regulators
-	      not used but preferred to be managed by the OS should be
-	      listed as well.
-	      See Documentation/devicetree/bindings/regulator/regulator.txt
-	      for more information on standard regulator bindings.
-
-Optional properties for DCDC regulators:
-- x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO (PWM/PFM) mode
-			  Default: Current hardware setting
-			  The DCDC regulators work in a mixed PWM/PFM mode,
-			  using PFM under light loads and switching to PWM
-			  for heavier loads. Forcing PWM mode trades efficiency
-			  under light loads for lower output noise. This
-			  probably makes sense for HiFi audio related
-			  applications that aren't battery constrained.
-
-AXP202/AXP209 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDC2		: DC-DC buck	: vin2-supply
-DCDC3		: DC-DC	buck	: vin3-supply
-LDO1		: LDO		: acin-supply		: always on
-LDO2		: LDO		: ldo24in-supply	: shared supply
-LDO3		: LDO		: ldo3in-supply
-LDO4		: LDO		: ldo24in-supply	: shared supply
-LDO5		: LDO		: ldo5in-supply
-
-AXP221/AXP223 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDC1		: DC-DC buck	: vin1-supply
-DCDC2		: DC-DC buck	: vin2-supply
-DCDC3		: DC-DC	buck	: vin3-supply
-DCDC4		: DC-DC	buck	: vin4-supply
-DCDC5		: DC-DC	buck	: vin5-supply
-DC1SW		: On/Off Switch	:			: DCDC1 secondary output
-DC5LDO		: LDO		:			: input from DCDC5
-ALDO1		: LDO		: aldoin-supply		: shared supply
-ALDO2		: LDO		: aldoin-supply		: shared supply
-ALDO3		: LDO		: aldoin-supply		: shared supply
-DLDO1		: LDO		: dldoin-supply		: shared supply
-DLDO2		: LDO		: dldoin-supply		: shared supply
-DLDO3		: LDO		: dldoin-supply		: shared supply
-DLDO4		: LDO		: dldoin-supply		: shared supply
-ELDO1		: LDO		: eldoin-supply		: shared supply
-ELDO2		: LDO		: eldoin-supply		: shared supply
-ELDO3		: LDO		: eldoin-supply		: shared supply
-LDO_IO0		: LDO		: ips-supply		: GPIO 0
-LDO_IO1		: LDO		: ips-supply		: GPIO 1
-RTC_LDO		: LDO		: ips-supply		: always on
-DRIVEVBUS	: Enable output	: drivevbus-supply	: external regulator
-
-AXP803 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDC1		: DC-DC buck	: vin1-supply
-DCDC2		: DC-DC buck	: vin2-supply		: poly-phase capable
-DCDC3		: DC-DC	buck	: vin3-supply		: poly-phase capable
-DCDC4		: DC-DC	buck	: vin4-supply
-DCDC5		: DC-DC	buck	: vin5-supply		: poly-phase capable
-DCDC6		: DC-DC	buck	: vin6-supply		: poly-phase capable
-DC1SW		: On/Off Switch	:			: DCDC1 secondary output
-ALDO1		: LDO		: aldoin-supply		: shared supply
-ALDO2		: LDO		: aldoin-supply		: shared supply
-ALDO3		: LDO		: aldoin-supply		: shared supply
-DLDO1		: LDO		: dldoin-supply		: shared supply
-DLDO2		: LDO		: dldoin-supply		: shared supply
-DLDO3		: LDO		: dldoin-supply		: shared supply
-DLDO4		: LDO		: dldoin-supply		: shared supply
-ELDO1		: LDO		: eldoin-supply		: shared supply
-ELDO2		: LDO		: eldoin-supply		: shared supply
-ELDO3		: LDO		: eldoin-supply		: shared supply
-FLDO1		: LDO		: fldoin-supply		: shared supply
-FLDO2		: LDO		: fldoin-supply		: shared supply
-LDO_IO0		: LDO		: ips-supply		: GPIO 0
-LDO_IO1		: LDO		: ips-supply		: GPIO 1
-RTC_LDO		: LDO		: ips-supply		: always on
-DRIVEVBUS	: Enable output	: drivevbus-supply	: external regulator
-
-AXP806 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDCA		: DC-DC buck	: vina-supply		: poly-phase capable
-DCDCB		: DC-DC buck	: vinb-supply		: poly-phase capable
-DCDCC		: DC-DC	buck	: vinc-supply		: poly-phase capable
-DCDCD		: DC-DC	buck	: vind-supply		: poly-phase capable
-DCDCE		: DC-DC	buck	: vine-supply		: poly-phase capable
-ALDO1		: LDO		: aldoin-supply		: shared supply
-ALDO2		: LDO		: aldoin-supply		: shared supply
-ALDO3		: LDO		: aldoin-supply		: shared supply
-BLDO1		: LDO		: bldoin-supply		: shared supply
-BLDO2		: LDO		: bldoin-supply		: shared supply
-BLDO3		: LDO		: bldoin-supply		: shared supply
-BLDO4		: LDO		: bldoin-supply		: shared supply
-CLDO1		: LDO		: cldoin-supply		: shared supply
-CLDO2		: LDO		: cldoin-supply		: shared supply
-CLDO3		: LDO		: cldoin-supply		: shared supply
-SW		: On/Off Switch : swin-supply
-
-Additionally, the AXP806 DC-DC regulators support poly-phase arrangements
-for higher output current. The possible groupings are: A+B, A+B+C, D+E.
-
-AXP809 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDC1		: DC-DC buck	: vin1-supply
-DCDC2		: DC-DC buck	: vin2-supply
-DCDC3		: DC-DC	buck	: vin3-supply
-DCDC4		: DC-DC	buck	: vin4-supply
-DCDC5		: DC-DC	buck	: vin5-supply
-DC1SW		: On/Off Switch	:			: DCDC1 secondary output
-DC5LDO		: LDO		:			: input from DCDC5
-ALDO1		: LDO		: aldoin-supply		: shared supply
-ALDO2		: LDO		: aldoin-supply		: shared supply
-ALDO3		: LDO		: aldoin-supply		: shared supply
-DLDO1		: LDO		: dldoin-supply		: shared supply
-DLDO2		: LDO		: dldoin-supply		: shared supply
-ELDO1		: LDO		: eldoin-supply		: shared supply
-ELDO2		: LDO		: eldoin-supply		: shared supply
-ELDO3		: LDO		: eldoin-supply		: shared supply
-LDO_IO0		: LDO		: ips-supply		: GPIO 0
-LDO_IO1		: LDO		: ips-supply		: GPIO 1
-RTC_LDO		: LDO		: ips-supply		: always on
-SW		: On/Off Switch : swin-supply
-
-AXP813 regulators, type, and corresponding input supply names:
-
-Regulator	  Type		  Supply Name		  Notes
----------	  ----		  -----------		  -----
-DCDC1		: DC-DC buck	: vin1-supply
-DCDC2		: DC-DC buck	: vin2-supply		: poly-phase capable
-DCDC3		: DC-DC	buck	: vin3-supply		: poly-phase capable
-DCDC4		: DC-DC	buck	: vin4-supply
-DCDC5		: DC-DC	buck	: vin5-supply		: poly-phase capable
-DCDC6		: DC-DC	buck	: vin6-supply		: poly-phase capable
-DCDC7		: DC-DC	buck	: vin7-supply
-ALDO1		: LDO		: aldoin-supply		: shared supply
-ALDO2		: LDO		: aldoin-supply		: shared supply
-ALDO3		: LDO		: aldoin-supply		: shared supply
-DLDO1		: LDO		: dldoin-supply		: shared supply
-DLDO2		: LDO		: dldoin-supply		: shared supply
-DLDO3		: LDO		: dldoin-supply		: shared supply
-DLDO4		: LDO		: dldoin-supply		: shared supply
-ELDO1		: LDO		: eldoin-supply		: shared supply
-ELDO2		: LDO		: eldoin-supply		: shared supply
-ELDO3		: LDO		: eldoin-supply		: shared supply
-FLDO1		: LDO		: fldoin-supply		: shared supply
-FLDO2		: LDO		: fldoin-supply		: shared supply
-FLDO3		: LDO		: fldoin-supply		: shared supply
-LDO_IO0		: LDO		: ips-supply		: GPIO 0
-LDO_IO1		: LDO		: ips-supply		: GPIO 1
-RTC_LDO		: LDO		: ips-supply		: always on
-SW		: On/Off Switch : swin-supply
-DRIVEVBUS	: Enable output	: drivevbus-supply	: external regulator
-
-Example:
-
-axp209: pmic@34 {
-	compatible = "x-powers,axp209";
-	reg = <0x34>;
-	interrupt-parent = <&nmi_intc>;
-	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
-	interrupt-controller;
-	#interrupt-cells = <1>;
-
-	regulators {
-		x-powers,dcdc-freq = <1500>;
-
-		vdd_cpu: dcdc2 {
-			regulator-always-on;
-			regulator-min-microvolt = <1000000>;
-			regulator-max-microvolt = <1450000>;
-			regulator-name = "vdd-cpu";
-		};
-
-		vdd_int_dll: dcdc3 {
-			regulator-always-on;
-			regulator-min-microvolt = <1000000>;
-			regulator-max-microvolt = <1400000>;
-			regulator-name = "vdd-int-dll";
-		};
-
-		vdd_rtc: ldo1 {
-			regulator-always-on;
-			regulator-min-microvolt = <1200000>;
-			regulator-max-microvolt = <1400000>;
-			regulator-name = "vdd-rtc";
-		};
-
-		avcc: ldo2 {
-			regulator-always-on;
-			regulator-min-microvolt = <2700000>;
-			regulator-max-microvolt = <3300000>;
-			regulator-name = "avcc";
-		};
-
-		ldo3 {
-			/* unused but preferred to be managed by OS */
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml b/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml
new file mode 100644
index 000000000000..e2804965ba0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml
@@ -0,0 +1,381 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/x-powers,axp152.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: X-Powers AXP PMIC Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - x-powers,axp152
+              - x-powers,axp202
+              - x-powers,axp209
+
+    then:
+      properties:
+        regulators:
+          properties:
+            x-powers,dcdc-freq:
+              minimum: 750
+              maximum: 1875
+              default: 1500
+
+    else:
+      properties:
+        regulators:
+          properties:
+            x-powers,dcdc-freq:
+              minimum: 1800
+              maximum: 4050
+              default: 3000
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - x-powers,axp152
+              - x-powers,axp202
+              - x-powers,axp209
+
+    then:
+      not:
+        required:
+          - x-powers,drive-vbus-en
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: x-powers,axp806
+
+    then:
+      allOf:
+        - not:
+            required:
+              - x-powers,self-working-mode
+
+        - not:
+            required:
+              - x-powers,master-mode
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - x-powers,axp152
+          - x-powers,axp202
+          - x-powers,axp209
+          - x-powers,axp221
+          - x-powers,axp223
+          - x-powers,axp803
+          - x-powers,axp806
+          - x-powers,axp809
+          - x-powers,axp813
+      - items:
+          - const: x-powers,axp805
+          - const: x-powers,axp806
+      - items:
+          - const: x-powers,axp818
+          - const: x-powers,axp813
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 1
+
+  x-powers,drive-vbus-en:
+    type: boolean
+    description: >
+      Set this when the N_VBUSEN pin is used as an output pin to control an
+      external regulator to drive the OTG VBus, rather then as an input pin
+      which signals whether the board is driving OTG VBus or not.
+
+  x-powers,self-working-mode:
+    type: boolean
+    description: >
+      Set this when the PMIC is wired for self-working mode through the MODESET
+      pin.
+
+  x-powers,master-mode:
+    type: boolean
+    description: >
+      Set this when the PMIC is wired for master mode through the MODESET pin.
+
+  vin1-supply:
+    description: >
+      DCDC1 power supply node, if present.
+
+  vin2-supply:
+    description: >
+      DCDC2 power supply node, if present.
+
+  vin3-supply:
+    description: >
+      DCDC3 power supply node, if present.
+
+  vin4-supply:
+    description: >
+      DCDC4 power supply node, if present.
+
+  vin5-supply:
+    description: >
+      DCDC5 power supply node, if present.
+
+  vin6-supply:
+    description: >
+      DCDC6 power supply node, if present.
+
+  vin7-supply:
+    description: >
+      DCDC7 power supply node, if present.
+
+  vina-supply:
+    description: >
+      DCDCA power supply node, if present.
+
+  vinb-supply:
+    description: >
+      DCDCB power supply node, if present.
+
+  vinc-supply:
+    description: >
+      DCDCC power supply node, if present.
+
+  vind-supply:
+    description: >
+      DCDCD power supply node, if present.
+
+  vine-supply:
+    description: >
+      DCDCE power supply node, if present.
+
+  acin-supply:
+    description: >
+      LDO1 power supply node, if present.
+
+  ldo24in-supply:
+    description: >
+      LDO2 and LDO4 power supply node, if present.
+
+  ldo3in-supply:
+    description: >
+      LDO3 power supply node, if present.
+
+  ldo5in-supply:
+    description: >
+      LDO5 power supply node, if present.
+
+  aldoin-supply:
+    description: >
+      ALDO* power supply node, if present.
+
+  bldoin-supply:
+    description: >
+      BLDO* power supply node, if present.
+
+  cldoin-supply:
+    description: >
+      CLDO* power supply node, if present.
+
+  dldoin-supply:
+    description: >
+      DLDO* power supply node, if present.
+
+  eldoin-supply:
+    description: >
+      ELDO* power supply node, if present.
+
+  fldoin-supply:
+    description: >
+      FLDO* power supply node, if present.
+
+  ips-supply:
+    description: >
+      LDO_IO0, LDO_IO1 and RTC_LDO power supply node, if present.
+
+  drivevbus-supply:
+    description: >
+      DRIVEVBUS power supply node, if present.
+
+  swin-supply:
+    description: >
+      SW power supply node, if present.
+
+  adc:
+    $ref: /schemas/iio/adc/x-powers,axp209-adc.yaml#
+
+  gpio:
+    $ref: /schemas/gpio/x-powers,axp209-gpio.yaml#
+
+  ac-power:
+    $ref: /schemas/power/supply/x-powers,axp20x-ac-power-supply.yaml#
+
+  battery-power:
+    $ref: /schemas/power/supply/x-powers,axp20x-battery-power-supply.yaml#
+
+  usb-power:
+    $ref: /schemas/power/supply/x-powers,axp20x-usb-power-supply.yaml#
+
+  regulators:
+    type: object
+
+    properties:
+      x-powers,dcdc-freq:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: >
+          Defines the work frequency of DC-DC in kHz.
+
+    patternProperties:
+      "^(([a-f])?ldo[0-9]|dcdc[0-7a-e]|ldo(_|-)io(0|1)|(dc1)?sw|rtc(_|-)ldo|drivevbus|dc5ldo)$":
+        $ref: /schemas/regulator/regulator.yaml#
+        type: object
+
+        properties:
+          regulator-ramp-delay:
+            enum: [ 800, 1600 ]
+            description: >
+              Only valid for the DCDC2 and LDO3 regulators.
+
+          regulator-soft-start:
+            description: >
+              Only valid for the LDO3 regulator.
+
+          x-powers,dcdc-workmode:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            enum: [0, 1]
+            description: >
+              Only valid for DCDC regulators. Setup 1 for PWM mode, 0
+              for AUTO (PWM/PFM) mode. The DCDC regulators work in a
+              mixed PWM/PFM mode, using PFM under light loads and
+              switching to PWM for heavier loads. Forcing PWM mode
+              trades efficiency under light loads for lower output
+              noise. This probably makes sense for HiFi audio related
+              applications that aren't battery constrained.
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#interrupt-cells"
+  - interrupt-controller
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+      i2c0 {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          pmic@30 {
+              compatible = "x-powers,axp152";
+              reg = <0x30>;
+              interrupts = <0>;
+              interrupt-controller;
+              #interrupt-cells = <1>;
+          };
+      };
+
+  - |
+      #include <dt-bindings/interrupt-controller/irq.h>
+
+      i2c0 {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          pmic@34 {
+              compatible = "x-powers,axp209";
+              reg = <0x34>;
+              interrupt-parent = <&nmi_intc>;
+              interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+              interrupt-controller;
+              #interrupt-cells = <1>;
+
+              ac_power_supply: ac-power {
+                  compatible = "x-powers,axp202-ac-power-supply";
+              };
+
+              axp_adc: adc {
+                  compatible = "x-powers,axp209-adc";
+                  #io-channel-cells = <1>;
+              };
+
+              axp_gpio: gpio {
+                  compatible = "x-powers,axp209-gpio";
+                  gpio-controller;
+                  #gpio-cells = <2>;
+              };
+
+              battery_power_supply: battery-power {
+                  compatible = "x-powers,axp209-battery-power-supply";
+              };
+
+              regulators {
+                  /* Default work frequency for buck regulators */
+                  x-powers,dcdc-freq = <1500>;
+
+                  reg_dcdc2: dcdc2 {
+                      regulator-always-on;
+                      regulator-min-microvolt = <1000000>;
+                      regulator-max-microvolt = <1450000>;
+                      regulator-name = "vdd-cpu";
+                  };
+
+                  reg_dcdc3: dcdc3 {
+                      regulator-always-on;
+                      regulator-min-microvolt = <1000000>;
+                      regulator-max-microvolt = <1400000>;
+                      regulator-name = "vdd-int-dll";
+                  };
+
+                  reg_ldo1: ldo1 {
+                      /* LDO1 is a fixed output regulator */
+                      regulator-always-on;
+                      regulator-min-microvolt = <1300000>;
+                      regulator-max-microvolt = <1300000>;
+                      regulator-name = "vdd-rtc";
+                  };
+
+                  reg_ldo2: ldo2 {
+                      regulator-always-on;
+                      regulator-min-microvolt = <3000000>;
+                      regulator-max-microvolt = <3000000>;
+                      regulator-name = "avcc";
+                  };
+
+                  reg_ldo3: ldo3 {
+                      regulator-name = "ldo3";
+                  };
+
+                  reg_ldo4: ldo4 {
+                      regulator-name = "ldo4";
+                  };
+
+                  reg_ldo5: ldo5 {
+                      regulator-name = "ldo5";
+                  };
+              };
+
+              usb_power_supply: usb-power {
+                  compatible = "x-powers,axp202-usb-power-supply";
+              };
+          };
+      };
