dt-bindings: rtc: Add Sunplus RTC json-schema

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

# Copyright (C) Sunplus Co., Ltd. 2021

%YAML 1.2

---

$id: http://devicetree.org/schemas/rtc/sunplus,sp7021-rtc.yaml#

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

title: Sunplus SP7021 Real Time Clock controller

maintainers:

  - Vincent Shih <vincent.sunplus@gmail.com>

properties:

  compatible:

    const: sunplus,sp7021-rtc

  reg:

    maxItems: 1

  reg-names:

    items:

      - const: rtc

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

  interrupts:

    maxItems: 1

required:

  - compatible

  - reg

  - reg-names

  - clocks

  - resets

  - interrupts

additionalProperties: false

examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    rtc: serial@9c003a00 {

        compatible = "sunplus,sp7021-rtc";

        reg = <0x9c003a00 0x80>;

        reg-names = "rtc";

        clocks = <&clkc 0x12>;

        resets = <&rstc 0x02>;

        interrupt-parent = <&intc>;

        interrupts = <163 IRQ_TYPE_EDGE_RISING>;

    };

...

M:	Vincent Shih <vincent.sunplus@gmail.com>

L:	linux-rtc@vger.kernel.org

S:	Maintained

F:	Documentation/devicetree/bindings/rtc/sunplus,sp7021-rtc.yaml

F:	drivers/rtc/rtc-sunplus.c

SUPERH