dt-bindings: clock: Add YAML schemas for the QCOM RPMHCC clock bindings

Qualcomm Technologies, Inc. RPMh Clocks

-------------------------------------------------------

Resource Power Manager Hardened (RPMh) manages shared resources on

some Qualcomm Technologies Inc. SoCs. It accepts clock requests from

other hardware subsystems via RSC to control clocks.

Required properties :

- compatible : must be one of:

	       "qcom,sdm845-rpmh-clk"

	       "qcom,sm8150-rpmh-clk"

- #clock-cells : must contain 1

- clocks: a list of phandles and clock-specifier pairs,

	  one for each entry in clock-names.

- clock-names: Parent board clock: "xo".

Example :

#include <dt-bindings/clock/qcom,rpmh.h>

	&apps_rsc {

		rpmhcc: clock-controller {

			compatible = "qcom,sdm845-rpmh-clk";

			#clock-cells = <1>;

		};

	};

# SPDX-License-Identifier: GPL-2.0-only

%YAML 1.2

---

$id: http://devicetree.org/schemas/bindings/clock/qcom,rpmhcc.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Technologies, Inc. RPMh Clocks Bindings

maintainers:

  - Taniya Das <tdas@codeaurora.org>

description: |

  Resource Power Manager Hardened (RPMh) manages shared resources on

  some Qualcomm Technologies Inc. SoCs. It accepts clock requests from

  other hardware subsystems via RSC to control clocks.

properties:

  compatible:

    enum:

      - qcom,sdm845-rpmh-clk

      - qcom,sm8150-rpmh-clk

  clocks:

    maxItems: 1

  clock-names:

    items:

      - const: xo

  '#clock-cells':

    const: 1

required:

  - compatible

  - '#clock-cells'

examples:

  # Example for GCC for SDM845: The below node should be defined inside

  # &apps_rsc node.

  - |

    #include <dt-bindings/clock/qcom,rpmh.h>

    rpmhcc: clock-controller {

      compatible = "qcom,sdm845-rpmh-clk";

      clocks = <&xo_board>;

      clock-names = "xo";

      #clock-cells = <1>;

    };

...