dt-bindings: clocks: Convert Allwinner legacy clocks to schemas

The Allwinner SoCs have a legacy set of bindings (and a framework to
support it in Linux) for their clock controllers.

Now that we have the DT validation in place, let's split into separate file
and convert the device tree bindings for those clocks to schemas, and mark
them all as deprecated.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 87 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
new file mode 100644
index 000000000000..5199285a661a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mmc-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Module 1 Clock Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+  "#clock-cells":
+    const: 1
+    description: >
+      There is three different outputs: the main clock, with the ID 0,
+      and the output and sample clocks, with the IDs 1 and 2,
+      respectively.
+
+  compatible:
+    enum:
+      - allwinner,sun4i-a10-mmc-clk
+      - allwinner,sun9i-a80-mmc-clk
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 3
+    description: >
+      The parent order must match the hardware programming order.
+
+  clock-output-names:
+    maxItems: 3
+
+required:
+  - "#clock-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-output-names
+
+additionalProperties: false
+
+if:
+  properties:
+    compatible:
+      contains:
+        const: allwinner,sun4i-a10-mmc-clk
+
+then:
+  properties:
+    clocks:
+      maxItems: 3
+
+else:
+  properties:
+    clocks:
+      maxItems: 2
+
+examples:
+  - |
+    clk@1c20088 {
+        #clock-cells = <1>;
+        compatible = "allwinner,sun4i-a10-mmc-clk";
+        reg = <0x01c20088 0x4>;
+        clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+        clock-output-names = "mmc0",
+                             "mmc0_output",
+                             "mmc0_sample";
+    };
+
+  - |
+    clk@6000410 {
+        #clock-cells = <1>;
+        compatible = "allwinner,sun9i-a80-mmc-clk";
+        reg = <0x06000410 0x4>;
+        clocks = <&osc24M>, <&pll4>;
+        clock-output-names = "mmc0", "mmc0_output",
+                             "mmc0_sample";
+    };
+
+...