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diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-booster.yaml b/Documentation/devicetree/bindings/regulator/st,stm32-booster.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/st,stm32-booster.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 booster for ADC analog input switches bindings
+
+maintainers:
+  - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
+
+description: |
+  Some STM32 devices embed a 3.3V booster supplied by Vdda, that can be used
+  to supply ADC analog input switches.
+
+allOf:
+  - $ref: "regulator.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - st,stm32h7-booster
+      - st,stm32mp1-booster
+
+  st,syscfg:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: phandle to system configuration controller.
+
+  vdda-supply:
+    description: phandle to the vdda input analog voltage.
+
+required:
+  - compatible
+  - st,syscfg
+  - vdda-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    regulator-booster {
+      compatible = "st,stm32mp1-booster";
+      st,syscfg = <&syscfg>;
+      vdda-supply = <&vdda>;
+    };
+
+...