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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/clock/allwinner,sun55i-a523-ccu.yaml#

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

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title: Allwinner A523 Clock Control Unit

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maintainers:

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  - Andre Przywara <andre.przywara@arm.com>

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properties:

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  "#clock-cells":

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    const: 1

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  "#reset-cells":

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    const: 1

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  compatible:

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    enum:

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      - allwinner,sun55i-a523-ccu

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      - allwinner,sun55i-a523-mcu-ccu

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      - allwinner,sun55i-a523-r-ccu

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  reg:

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    maxItems: 1

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  clocks:

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    minItems: 4

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    maxItems: 9

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  clock-names:

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    minItems: 4

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    maxItems: 9

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required:

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  - "#clock-cells"

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  - "#reset-cells"

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  - compatible

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  - reg

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  - clocks

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  - clock-names

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allOf:

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  - if:

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      properties:

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        compatible:

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          enum:

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            - allwinner,sun55i-a523-ccu

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    then:

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      properties:

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        clocks:

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          items:

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            - description: High Frequency Oscillator (usually at 24MHz)

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            - description: Low Frequency Oscillator (usually at 32kHz)

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            - description: Internal Oscillator

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            - description: Low Frequency Oscillator fanout

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        clock-names:

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          items:

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            - const: hosc

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            - const: losc

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            - const: iosc

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            - const: losc-fanout

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  - if:

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      properties:

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        compatible:

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          enum:

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            - allwinner,sun55i-a523-mcu-ccu

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    then:

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      properties:

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        clocks:

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          items:

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            - description: High Frequency Oscillator (usually at 24MHz)

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            - description: Low Frequency Oscillator (usually at 32kHz)

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            - description: Internal Oscillator

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            - description: Audio PLL (4x)

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            - description: Peripherals PLL 0 (300 MHz output)

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            - description: DSP module clock

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            - description: MBUS clock

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            - description: PRCM AHB clock

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            - description: PRCM APB0 clock

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        clock-names:

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          items:

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            - const: hosc

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            - const: losc

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            - const: iosc

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            - const: pll-audio0-4x

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            - const: pll-periph0-300m

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            - const: dsp

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            - const: mbus

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            - const: r-ahb

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            - const: r-apb0

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  - if:

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      properties:

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        compatible:

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          enum:

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            - allwinner,sun55i-a523-r-ccu

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    then:

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      properties:

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        clocks:

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          items:

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            - description: High Frequency Oscillator (usually at 24MHz)

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            - description: Low Frequency Oscillator (usually at 32kHz)

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            - description: Internal Oscillator

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            - description: Peripherals PLL

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            - description: Audio PLL

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        clock-names:

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          items:

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            - const: hosc

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            - const: losc

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            - const: iosc

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            - const: pll-periph

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            - const: pll-audio

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additionalProperties: false

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examples:

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  - |

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    clock-controller@2001000 {

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        compatible = "allwinner,sun55i-a523-ccu";

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        reg = <0x02001000 0x1000>;

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        clocks = <&osc24M>, <&osc32k>, <&iosc>, <&r_ccu 1>;

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        clock-names = "hosc", "losc", "iosc", "losc-fanout";

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        #clock-cells = <1>;

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        #reset-cells = <1>;

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    };

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...

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