dt-bindings: Add devicetree bindings

Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>

bindings/clock/fixed-factor-clock.yaml

@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fixed-factor-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for simple fixed factor rate clock sources
+
+maintainers:
+  - Michael Turquette <mturquette@baylibre.com>
+  - Stephen Boyd <sboyd@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - fixed-factor-clock
+
+  "#clock-cells":
+    const: 0
+
+  clocks:
+    maxItems: 1
+
+  clock-div:
+    description: Fixed divider
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+
+  clock-mult:
+    description: Fixed multiplier
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - "#clock-cells"
+  - clock-div
+  - clock-mult
+
+additionalProperties: false
+
+examples:
+  - |
+    clock {
+      compatible = "fixed-factor-clock";
+      clocks = <&parentclk>;
+      #clock-cells = <0>;
+      clock-div = <2>;
+      clock-mult = <1>;
+    };
+...