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diff --git a/Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml b/Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/intel,lgm-io.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain SoC pinmux & GPIO controller binding
+
+maintainers:
+  - Rahul Tanwar <rahul.tanwar@linux.intel.com>
+
+description: |
+  Pinmux & GPIO controller controls pin multiplexing & configuration including
+  GPIO function selection & GPIO attributes configuration.
+
+properties:
+  compatible:
+    const: intel,lgm-io
+
+  reg:
+    maxItems: 1
+
+# Client device subnode's properties
+patternProperties:
+  '-pins$':
+    type: object
+    description:
+      Pinctrl node's client devices use subnodes for desired pin configuration.
+      Client device subnodes use below standard properties.
+    $ref: pinmux-node.yaml#
+
+    properties:
+      function: true
+      groups: true
+      pins: true
+      pinmux: true
+      bias-pull-up: true
+      bias-pull-down: true
+      drive-strength: true
+      slew-rate: true
+      drive-open-drain: true
+      output-enable: true
+
+    required:
+      - function
+      - groups
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  # Pinmux controller node
+  - |
+    pinctrl: pinctrl@e2880000 {
+        compatible = "intel,lgm-io";
+        reg = <0xe2880000 0x100000>;
+
+        uart0-pins {
+             pins = <64>, /* UART_RX0 */
+                    <65>; /* UART_TX0 */
+             function = "CONSOLE_UART0";
+             pinmux = <1>,
+                      <1>;
+             groups = "CONSOLE_UART0";
+          };
+    };
+
+...