dt-bindings: clock: convert bcm2835-aux-clock to yaml

Broadcom BCM2835 auxiliary peripheral support

This binding uses the common clock binding:

    Documentation/devicetree/bindings/clock/clock-bindings.txt

The auxiliary peripherals (UART, SPI1, and SPI2) have a small register

area controlling clock gating to the peripherals, and providing an IRQ

status register.

Required properties:

- compatible:	Should be "brcm,bcm2835-aux"

- #clock-cells:	Should be <1>. The permitted clock-specifier values can be

		  found in include/dt-bindings/clock/bcm2835-aux.h

- reg:		Specifies base physical address and size of the registers

- clocks:	The parent clock phandle

Example:

	clocks: cprman@7e101000 {

		compatible = "brcm,bcm2835-cprman";

		#clock-cells = <1>;

		reg = <0x7e101000 0x2000>;

		clocks = <&clk_osc>;

	};

	aux: aux@7e215004 {

		compatible = "brcm,bcm2835-aux";

		#clock-cells = <1>;

		reg = <0x7e215000 0x8>;

		clocks = <&clocks BCM2835_CLOCK_VPU>;

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/clock/brcm,bcm2835-aux-clock.yaml#

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

title: Broadcom BCM2835 auxiliary peripheral clock

maintainers:

  - Stefan Wahren <wahrenst@gmx.net>

  - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>

description:

  The auxiliary peripherals (UART, SPI1, and SPI2) have a small register

  area controlling clock gating to the peripherals, and providing an IRQ

  status register.

properties:

  compatible:

    const: brcm,bcm2835-aux

  reg:

    maxItems: 1

  "#clock-cells":

    const: 1

  clocks:

    maxItems: 1

required:

  - compatible

  - reg

  - "#clock-cells"

  - clocks

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/bcm2835.h>

    clock@7e215000 {

        compatible = "brcm,bcm2835-aux";

        reg = <0x7e215000 0x8>;

        #clock-cells = <1>;

        clocks = <&clocks BCM2835_CLOCK_VPU>;

    };