diff --git a/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml
new file mode 100644
index 000000000000..017629cca73c
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+++ b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/x-powers,ac200.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: X-Powers AC200 mixed-signal IC
+
+maintainers:
+  - James Hilliard <james.hilliard1@gmail.com>
+
+description:
+  The AC200 is a mixed-signal companion IC containing audio, video, RTC and
+  Fast Ethernet PHY functions. Its control registers are accessed over I2C.
+
+properties:
+  compatible:
+    const: x-powers,ac200
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description:
+      AC200 input clock. When using the Ethernet PHY, its configured rate must
+      be 24 or 27 MHz, matching the rates encoded by the documented EPHY clock
+      selector.
+
+  interrupts:
+    maxItems: 1
+    description:
+      The INTB pin, which is a shared open-drain, level-triggered output for
+      the TV encoder, Ethernet PHY and RTC interrupt sources.
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+    description:
+      The interrupt number, as defined in
+      include/dt-bindings/mfd/x-powers,ac200.h.
+
+  ac-ldoin-supply:
+    description: 3.3 V supply for the audio-codec LDO input
+
+  ephy-vcc-supply:
+    description: 3.3 V supply for the Ethernet PHY analog front end
+
+  rtc-vcc-supply:
+    description: 3.3 V supply for the RTC
+
+  tv-vcc-supply:
+    description: 3.3 V supply for the TV encoder DAC
+
+  nvmem-cells:
+    maxItems: 1
+    description:
+      Optional SoC SID cell containing the AC200 bandgap calibration value.
+      The trim is used by the TV encoder; the public AC200 datasheet does not
+      document the corresponding register fields.
+
+  nvmem-cell-names:
+    const: bandgap
+
+  ethernet-phy-control:
+    $ref: /schemas/net/x-powers,ac200-ephy-ctl.yaml#
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - ac-ldoin-supply
+  - ephy-vcc-supply
+  - rtc-vcc-supply
+  - tv-vcc-supply
+
+dependencies:
+  interrupts: [ interrupt-controller ]
+  interrupt-controller: [ '#interrupt-cells', interrupts ]
+  '#interrupt-cells': [ interrupt-controller ]
+  nvmem-cells: [ nvmem-cell-names ]
+  nvmem-cell-names: [ nvmem-cells ]
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mixed-signal@10 {
+            compatible = "x-powers,ac200";
+            reg = <0x10>;
+            clocks = <&pwm 5>;
+            ac-ldoin-supply = <&reg_3v3>;
+            ephy-vcc-supply = <&reg_3v3>;
+            rtc-vcc-supply = <&reg_3v3>;
+            tv-vcc-supply = <&reg_3v3>;
+            interrupt-parent = <&pio>;
+            interrupts = <1 20 IRQ_TYPE_LEVEL_LOW>;
+            interrupt-controller;
+            #interrupt-cells = <1>;
+            nvmem-cells = <&ac200_bandgap>;
+            nvmem-cell-names = "bandgap";
+
+            ethernet-phy-control {
+                compatible = "x-powers,ac200-ephy-ctl";
+                nvmem-cells = <&ephy_calibration>;
+                nvmem-cell-names = "calibration";
+                phy-mode = "rmii";
+            };
+        };
+    };
+...
diff --git a/include/dt-bindings/mfd/x-powers,ac200.h b/include/dt-bindings/mfd/x-powers,ac200.h
new file mode 100644
index 000000000000..cc59e2ab4912
--- /dev/null
+++ b/include/dt-bindings/mfd/x-powers,ac200.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Interrupt numbers of the X-Powers AC200 interrupt controller.
+ */
+
+#ifndef _DT_BINDINGS_MFD_X_POWERS_AC200_H
+#define _DT_BINDINGS_MFD_X_POWERS_AC200_H
+
+#define AC200_IRQ_TVE			0
+#define AC200_IRQ_EPHY			1
+#define AC200_IRQ_RTC			2
+
+#endif /* _DT_BINDINGS_MFD_X_POWERS_AC200_H */