[PATCH 7/8] dt-bindings: clk: Add KUnit clk_parent_data test

Stephen Boyd
2023-03-02T01:38:48Z

Describe a binding for a device that provides and consumes clks in DT so
that a KUnit test can register clks based on the device node and test
clk_hw_register() with clk_parent_data.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
.../clock/linux,clk-kunit-parent-data.yaml | 47 +++++++++++++++++++
1 file changed, 47 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/linux,clk-kunit-parent-data.yaml

diff --git a/Documentation/devicetree/bindings/clock/linux,clk-kunit-parent-data.yaml b/Documentation/devicetree/bindings/clock/linux,clk-kunit-parent-data.yaml
new file mode 100644
index 000000000000..29609e07c115
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/linux,clk-kunit-parent-data.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/linux,clk-kunit-parent-data.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: KUnit clk provider for clk_parent_data unit tests
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+description: |
+ A clk provider to test the struct clk_parent_data implementation in the Linux
+ kernel.
+
+properties:
+ compatible:
+ const: linux,clk-kunit-parent-data
+
+ clocks:
+ items:
+ - description: Fixed parent
+ - description: 50 MHz fixed parent
+
+ clock-names:
+ items:
+ - const: parent_fwname
+ - const: "50"
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller {
+ compatible = "linux,clk-kunit-parent-data";
+ #clock-cells = <1>;
+ clocks = <&fixed_parent>, <&fixed_50MHz>;
+ clock-names = "parent_fwname", "50";
+ };
+...
--