dt-bindings: clocks: Convert Allwinner A80 DE clocks to a schema

The Allwinner A80 SoC has a display clocks controller that is supported in
Linux, with a matching Device Tree binding.

Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.

Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

1 files changed, 67 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml
new file mode 100644
index 000000000000..a82c7c7e942b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-de-clks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 Display Engine Clock Controller Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Maxime Ripard <mripard@kernel.org>
+
+properties:
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  compatible:
+    const: allwinner,sun9i-a80-de-clks
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: RAM Bus Clock
+      - description: Module Clock
+
+  clock-names:
+    items:
+      - const: mod
+      - const: dram
+      - const: bus
+
+  resets:
+    maxItems: 1
+
+required:
+  - "#clock-cells"
+  - "#reset-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/sun9i-a80-ccu.h>
+    #include <dt-bindings/reset/sun9i-a80-ccu.h>
+
+    de_clocks: clock@3000000 {
+        compatible = "allwinner,sun9i-a80-de-clks";
+        reg = <0x03000000 0x30>;
+        clocks = <&ccu CLK_DE>, <&ccu CLK_SDRAM>, <&ccu CLK_BUS_DE>;
+        clock-names = "mod", "dram", "bus";
+        resets = <&ccu RST_BUS_DE>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
+
+...