dt-bindings: clock: Add Loongson-1 clock

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/clock/loongson,ls1x-clk.yaml#

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

title: Loongson-1 Clock Controller

maintainers:

  - Keguang Zhang <keguang.zhang@gmail.com>

properties:

  compatible:

    enum:

      - loongson,ls1b-clk

      - loongson,ls1c-clk

  reg:

    maxItems: 1

  clocks:

    maxItems: 1

  "#clock-cells":

    const: 1

required:

  - compatible

  - reg

  - clocks

  - "#clock-cells"

additionalProperties: false

examples:

  - |

    clkc: clock-controller@1fe78030 {

        compatible = "loongson,ls1b-clk";

        reg = <0x1fe78030 0x8>;

        clocks = <&xtal>;

        #clock-cells = <1>;

    };

...

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */

/*

 * Loongson-1 clock tree IDs

 *

 * Copyright (C) 2023 Keguang Zhang <keguang.zhang@gmail.com>

 */

#ifndef __DT_BINDINGS_CLOCK_LS1X_CLK_H__

#define __DT_BINDINGS_CLOCK_LS1X_CLK_H__

#define LS1X_CLKID_PLL	0

#define LS1X_CLKID_CPU	1

#define LS1X_CLKID_DC	2

#define LS1X_CLKID_AHB	3

#define LS1X_CLKID_APB	4

#define CLK_NR_CLKS	(LS1X_CLKID_APB + 1)

#endif /* __DT_BINDINGS_CLOCK_LS1X_CLK_H__ */