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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/cirrus,lochnagar.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic Lochnagar Audio Development Board
+
+maintainers:
+  - patches@opensource.cirrus.com
+
+description: |
+  Lochnagar is an evaluation and development board for Cirrus Logic
+  Smart CODEC and Amp devices. It allows the connection of most Cirrus
+  Logic devices on mini-cards, as well as allowing connection of various
+  application processor systems to provide a full evaluation platform.
+  Audio system topology, clocking and power can all be controlled through
+  the Lochnagar, allowing the device under test to be used in a variety of
+  possible use cases.
+
+  This binding document describes the binding for the clock portion of the
+  driver.
+
+  Also see these documents for generic binding information:
+    [1] Clock : ../clock/clock-bindings.txt
+
+  And these for relevant defines:
+    [2] include/dt-bindings/clock/lochnagar.h
+
+  This binding must be part of the Lochnagar MFD binding:
+    [3] ../mfd/cirrus,lochnagar.yaml
+
+properties:
+  compatible:
+    enum:
+      - cirrus,lochnagar1-clk
+      - cirrus,lochnagar2-clk
+
+  '#clock-cells':
+    description:
+      The first cell indicates the clock number, see [2] for available
+      clocks and [1].
+    const: 1
+
+  clock-names:
+    items:
+      enum:
+        - ln-cdc-clkout # Output clock from CODEC card.
+        - ln-dsp-clkout # Output clock from DSP card.
+        - ln-gf-mclk1 # Optional input clock from host system.
+        - ln-gf-mclk2 # Optional input clock from host system.
+        - ln-gf-mclk3 # Optional input clock from host system.
+        - ln-gf-mclk4 # Optional input clock from host system.
+        - ln-psia1-mclk # Optional input clock from external connector.
+        - ln-psia2-mclk # Optional input clock from external connector.
+        - ln-spdif-mclk # Optional input clock from SPDIF.
+        - ln-spdif-clkout # Optional input clock from SPDIF.
+        - ln-adat-mclk # Optional input clock from ADAT.
+        - ln-pmic-32k # On board fixed clock.
+        - ln-clk-12m # On board fixed clock.
+        - ln-clk-11m # On board fixed clock.
+        - ln-clk-24m # On board fixed clock.
+        - ln-clk-22m # On board fixed clock.
+        - ln-clk-8m # On board fixed clock.
+        - ln-usb-clk-24m # On board fixed clock.
+        - ln-usb-clk-12m # On board fixed clock.
+    minItems: 1
+    maxItems: 19
+
+  clocks: true
+  assigned-clocks: true
+  assigned-clock-parents: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - '#clock-cells'