dt-bindings: clock: samsung: convert Exynos5250 to dtschema

* Samsung Exynos5250 Clock Controller

The Exynos5250 clock controller generates and supplies clock to various

controllers within the Exynos5250 SoC.

Required Properties:

- compatible: should be one of the following.

  - "samsung,exynos5250-clock" - controller compatible with Exynos5250 SoC.

- reg: physical base address of the controller and length of memory mapped

  region.

- #clock-cells: should be 1.

Each clock is assigned an identifier and client nodes can use this identifier

to specify the clock which they consume.

All available clocks are defined as preprocessor macros in

dt-bindings/clock/exynos5250.h header and can be used in device

tree sources.

Example 1: An example of a clock controller node is listed below.

	clock: clock-controller@10010000 {

		compatible = "samsung,exynos5250-clock";

		reg = <0x10010000 0x30000>;

		#clock-cells = <1>;

	};

Example 2: UART controller node that consumes the clock generated by the clock

	   controller. Refer to the standard clock bindings for information

	   about 'clocks' and 'clock-names' property.

	serial@13820000 {

		compatible = "samsung,exynos4210-uart";

		reg = <0x13820000 0x100>;

		interrupts = <0 54 0>;

		clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>;

		clock-names = "uart", "clk_uart_baud0";

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/clock/samsung,exynos-clock.yaml#

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

title: Samsung Exynos SoC clock controller

maintainers:

  - Chanwoo Choi <cw00.choi@samsung.com>

  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

  - Sylwester Nawrocki <s.nawrocki@samsung.com>

  - Tomasz Figa <tomasz.figa@gmail.com>

description: |

  All available clocks are defined as preprocessor macros in

  dt-bindings/clock/ headers.

properties:

  compatible:

    const: samsung,exynos5250-clock

  clocks:

    maxItems: 4

  "#clock-cells":

    const: 1

  reg:

    maxItems: 1

required:

  - compatible

  - "#clock-cells"

  - reg

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/exynos5250.h>

    clock: clock-controller@10010000 {

        compatible = "samsung,exynos5250-clock";

        reg = <0x10010000 0x30000>;

        #clock-cells = <1>;

    };

S:	Supported

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk.git

F:	Documentation/devicetree/bindings/clock/exynos*.txt

F:	Documentation/devicetree/bindings/clock/samsung,*.yaml

F:	Documentation/devicetree/bindings/clock/samsung,s3c*

F:	Documentation/devicetree/bindings/clock/samsung,s5p*

F:	drivers/clk/samsung/