diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt
deleted file mode 100644
index 8765c605e6bc761db2923ad748b5bb70d40ea830..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-* Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller
-
-The highspeed MMC host controller on Amlogic SoCs provides an interface
-for MMC, SD, SDIO and SDHC types of memory cards.
-
-Supported maximum speeds are the ones of the eMMC standard 4.41 as well
-as the speed of SD standard 2.0.
-
-The hardware provides an internal "mux" which allows up to three slots
-to be controlled. Only one slot can be accessed at a time.
-
-Required properties:
- - compatible : must be one of
-	- "amlogic,meson8-sdio"
-	- "amlogic,meson8b-sdio"
-	along with the generic "amlogic,meson-mx-sdio"
- - reg : mmc controller base registers
- - interrupts : mmc controller interrupt
- - #address-cells : must be 1
- - size-cells : must be 0
- - clocks : phandle to clock providers
- - clock-names : must contain "core" and "clkin"
-
-Required child nodes:
-A node for each slot provided by the MMC controller is required.
-NOTE: due to a driver limitation currently only one slot (= child node)
-      is supported!
-
-Required properties on each child node (= slot):
- - compatible : must be "mmc-slot" (see mmc.txt within this directory)
- - reg : the slot (or "port") ID
-
-Optional properties on each child node (= slot):
- - bus-width : must be 1 or 4 (8-bit bus is not supported)
- - for cd and all other additional generic mmc parameters
-   please refer to mmc.txt within this directory
-
-Examples:
-	mmc@c1108c20 {
-		compatible = "amlogic,meson8-sdio", "amlogic,meson-mx-sdio";
-		reg = <0xc1108c20 0x20>;
-		interrupts = <0 28 1>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		clocks = <&clkc CLKID_SDIO>, <&clkc CLKID_CLK81>;
-		clock-names = "core", "clkin";
-
-		slot@1 {
-			compatible = "mmc-slot";
-			reg = <1>;
-
-			bus-width = <4>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..022682a977c6d347c36279f958dcd6f53d385b71
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/amlogic,meson-mx-sdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller
+
+description: |
+  The highspeed MMC host controller on Amlogic SoCs provides an interface
+  for MMC, SD, SDIO and SDHC types of memory cards.
+
+  Supported maximum speeds are the ones of the eMMC standard 4.41 as well
+  as the speed of SD standard 2.0.
+
+  The hardware provides an internal "mux" which allows up to three slots
+  to be controlled. Only one slot can be accessed at a time.
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - amlogic,meson8-sdio
+          - amlogic,meson8b-sdio
+      - const: amlogic,meson-mx-sdio
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: core
+      - const: clkin
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "slot@[0-2]$":
+    $ref: mmc-slot.yaml#
+    description:
+      A node for each slot provided by the MMC controller
+
+    properties:
+      reg:
+        enum: [0, 1, 2]
+
+      bus-width:
+        enum: [1, 4]
+
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    mmc@c1108c20 {
+        compatible = "amlogic,meson8-sdio", "amlogic,meson-mx-sdio";
+        reg = <0xc1108c20 0x20>;
+        interrupts = <GIC_SPI 28 IRQ_TYPE_EDGE_RISING>;
+        clocks = <&clk_core>, <&clk_in>;
+        clock-names = "core", "clkin";
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        slot@1 {
+            compatible = "mmc-slot";
+            reg = <1>;
+            bus-width = <4>;
+        };
+    };
