[PATCH v3] dt-bindings: clock: sprd,sc9860-clk: convert to YAML

[Stanislav Jakubek <stano.jakubek@gmail.com>]

Convert the Spreadtrum SC9860 clock bindings to DT schema.

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
---
Changes in V3:
  - only allow one of reg / sprd,syscon properties

Changes in V2:
  - drop inaccurate clocks description
  - constrain clocks, reg and sprd,syscon per variant

 .../bindings/clock/sprd,sc9860-clk.txt        |  63 -------
 .../bindings/clock/sprd,sc9860-clk.yaml       | 159 ++++++++++++++++++
 2 files changed, 159 insertions(+), 63 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt
 create mode 100644 Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml

diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt
deleted file mode 100644
index aaaf02ca2a6a..000000000000
--- a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-Spreadtrum SC9860 Clock Binding
-------------------------
-
-Required properties:
-- compatible: should contain the following compatible strings:
-	- "sprd,sc9860-pmu-gate"
-	- "sprd,sc9860-pll"
-	- "sprd,sc9860-ap-clk"
-	- "sprd,sc9860-aon-prediv"
-	- "sprd,sc9860-apahb-gate"
-	- "sprd,sc9860-aon-gate"
-	- "sprd,sc9860-aonsecure-clk"
-	- "sprd,sc9860-agcp-gate"
-	- "sprd,sc9860-gpu-clk"
-	- "sprd,sc9860-vsp-clk"
-	- "sprd,sc9860-vsp-gate"
-	- "sprd,sc9860-cam-clk"
-	- "sprd,sc9860-cam-gate"
-	- "sprd,sc9860-disp-clk"
-	- "sprd,sc9860-disp-gate"
-	- "sprd,sc9860-apapb-gate"
-
-- #clock-cells: must be 1
-
-- clocks : Should be the input parent clock(s) phandle for the clock, this
-	   property here just simply shows which clock group the clocks'
-	   parents are in, since each clk node would represent many clocks
-	   which are defined in the driver.  The detailed dependency
-	   relationship (i.e. how many parents and which are the parents)
-	   are implemented in driver code.
-
-Optional properties:
-
-- reg:	Contain the registers base address and length. It must be configured
-	only if no 'sprd,syscon' under the node.
-
-- sprd,syscon: phandle to the syscon which is in the same address area with
-	       the clock, and so we can get regmap for the clocks from the
-	       syscon device.
-
-Example:
-
-	pmu_gate: pmu-gate {
-		compatible = "sprd,sc9860-pmu-gate";
-		sprd,syscon = <&pmu_regs>;
-		clocks = <&ext_26m>;
-		#clock-cells = <1>;
-	};
-
-	pll: pll {
-		compatible = "sprd,sc9860-pll";
-		sprd,syscon = <&ana_regs>;
-		clocks = <&pmu_gate 0>;
-		#clock-cells = <1>;
-	};
-
-	ap_clk: clock-controller@20000000 {
-		compatible = "sprd,sc9860-ap-clk";
-		reg = <0 0x20000000 0 0x400>;
-		clocks = <&ext_26m>, <&pll 0>,
-			 <&pmu_gate 0>;
-		#clock-cells = <1>;
-	};
diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
new file mode 100644
index 000000000000..502cd723511f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sprd,sc9860-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Spreadtrum SC9860 clock
+
+maintainers:
+  - Orson Zhai <orsonzhai@gmail.com>
+  - Baolin Wang <baolin.wang7@gmail.com>
+  - Chunyan Zhang <zhang.lyra@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - sprd,sc9860-agcp-gate
+      - sprd,sc9860-aonsecure-clk
+      - sprd,sc9860-aon-gate
+      - sprd,sc9860-aon-prediv
+      - sprd,sc9860-apahb-gate
+      - sprd,sc9860-apapb-gate
+      - sprd,sc9860-ap-clk
+      - sprd,sc9860-cam-clk
+      - sprd,sc9860-cam-gate
+      - sprd,sc9860-disp-clk
+      - sprd,sc9860-disp-gate
+      - sprd,sc9860-gpu-clk
+      - sprd,sc9860-pll
+      - sprd,sc9860-pmu-gate
+      - sprd,sc9860-vsp-clk
+      - sprd,sc9860-vsp-gate
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 3
+
+  '#clock-cells':
+    const: 1
+
+  sprd,syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to the syscon which is in the same address area with the
+      clock, and so we can get regmap for the clocks from the syscon device
+
+required:
+  - compatible
+  - clocks
+  - '#clock-cells'
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sprd,sc9860-agcp-gate
+              - sprd,sc9860-aon-gate
+              - sprd,sc9860-apahb-gate
+              - sprd,sc9860-apapb-gate
+              - sprd,sc9860-cam-gate
+              - sprd,sc9860-disp-gate
+              - sprd,sc9860-gpu-clk
+              - sprd,sc9860-pll
+              - sprd,sc9860-pmu-gate
+              - sprd,sc9860-vsp-gate
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sprd,sc9860-aonsecure-clk
+              - sprd,sc9860-cam-clk
+              - sprd,sc9860-disp-clk
+              - sprd,sc9860-vsp-clk
+    then:
+      properties:
+        clocks:
+          minItems: 2
+          maxItems: 2
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sprd,sc9860-aon-prediv
+              - sprd,sc9860-ap-clk
+    then:
+      properties:
+        clocks:
+          minItems: 3
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sprd,sc9860-aonsecure-clk
+              - sprd,sc9860-aon-prediv
+              - sprd,sc9860-ap-clk
+              - sprd,sc9860-cam-clk
+              - sprd,sc9860-disp-clk
+              - sprd,sc9860-gpu-clk
+              - sprd,sc9860-vsp-clk
+    then:
+      required:
+        - reg
+      properties:
+        sprd,syscon: false
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sprd,sc9860-agcp-gate
+              - sprd,sc9860-aon-gate
+              - sprd,sc9860-apahb-gate
+              - sprd,sc9860-apapb-gate
+              - sprd,sc9860-cam-gate
+              - sprd,sc9860-disp-gate
+              - sprd,sc9860-pll
+              - sprd,sc9860-pmu-gate
+              - sprd,sc9860-vsp-gate
+    then:
+      required:
+        - sprd,syscon
+      properties:
+        reg: false
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      pmu-gate {
+        compatible = "sprd,sc9860-pmu-gate";
+        clocks = <&ext_26m>;
+        #clock-cells = <1>;
+        sprd,syscon = <&pmu_regs>;
+      };
+
+      clock-controller@20000000 {
+        compatible = "sprd,sc9860-ap-clk";
+        reg = <0 0x20000000 0 0x400>;
+        clocks = <&ext_26m>, <&pll 0>, <&pmu_gate 0>;
+        #clock-cells = <1>;
+      };
+    };
+...
-- 
2.34.1