dt-bindings: clock: Add YAML schemas for QCOM A53 PLL

This patch adds schema for primary CPU PLL found on few Qualcomm
platforms.
Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Link: https://lkml.kernel.org/r/1588573803-3823-1-git-send-email-sivaprak@codeaurora.orgReviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/qcom,a53pll.txt

-Qualcomm MSM8916 A53 PLL Binding
---------------------------------
-The A53 PLL on MSM8916 platforms is the main CPU PLL used used for frequencies
-above 1GHz.
-
-Required properties :
-- compatible : Shall contain only one of the following:
-
-		"qcom,msm8916-a53pll"
-
-- reg : shall contain base register location and length
-
-- #clock-cells : must be set to <0>
-
-Example:
-
-	a53pll: clock@b016000 {
-		compatible = "qcom,msm8916-a53pll";
-		reg = <0xb016000 0x40>;
-		#clock-cells = <0>;
-	};
-

Documentation/devicetree/bindings/clock/qcom,a53pll.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,a53pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm A53 PLL Binding
+
+maintainers:
+  - Sivaprakash Murugesan <sivaprak@codeaurora.org>
+
+description:
+  The A53 PLL on few Qualcomm platforms is the main CPU PLL used used for
+  frequencies above 1GHz.
+
+properties:
+  compatible:
+    const: qcom,msm8916-a53pll
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  #Example 1 - A53 PLL found on MSM8916 devices
+  - |
+    a53pll: clock@b016000 {
+        compatible = "qcom,msm8916-a53pll";
+        reg = <0xb016000 0x40>;
+        #clock-cells = <0>;
+    };