Commit e7ddb13f authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Daniel Lezcano
Browse files

dt-bindings: timer: Convert img,pistachio-gptimer to DT schema 



Convert the ImgTec Pistachio Timer binding to DT schema format. It's a
straight-forward conversion.

Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250506022249.2587839-1-robh@kernel.org


Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 2b3b58f2

Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt

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* Pistachio general-purpose timer based clocksource



Required properties:

 - compatible: "img,pistachio-gptimer".

 - reg: Address range of the timer registers.

 - interrupts: An interrupt for each of the four timers

 - clocks: Should contain a clock specifier for each entry in clock-names

 - clock-names: Should contain the following entries:

                "sys", interface clock

                "slow", slow counter clock

                "fast", fast counter clock

 - img,cr-periph: Must contain a phandle to the peripheral control

		  syscon node.



Example:

	timer: timer@18102000 {

		compatible = "img,pistachio-gptimer";

		reg = <0x18102000 0x100>;

		interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,

		         <&clk_periph PERIPH_CLK_COUNTER_SLOW>,

			 <&cr_periph SYS_CLK_TIMER>;

		clock-names = "fast", "slow", "sys";

		img,cr-periph = <&cr_periph>;

	};

Documentation/devicetree/bindings/timer/img,pistachio-gptimer.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/img,pistachio-gptimer.yaml#

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



title: Pistachio general-purpose timer



maintainers:

  - Ezequiel Garcia <ezequiel.garcia@imgtec.com>



properties:

  compatible:

    const: img,pistachio-gptimer



  reg:

    maxItems: 1



  interrupts:

    items:

      - description: Timer0 interrupt

      - description: Timer1 interrupt

      - description: Timer2 interrupt

      - description: Timer3 interrupt



  clocks:

    items:

      - description: Fast counter clock

      - description: Slow counter clock

      - description: Interface clock



  clock-names:

    items:

      - const: fast

      - const: slow

      - const: sys



  img,cr-periph:

    description: Peripheral control syscon phandle

    $ref: /schemas/types.yaml#/definitions/phandle



required:

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names

  - img,cr-periph



additionalProperties: false



examples:

  - |

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

    #include <dt-bindings/clock/pistachio-clk.h>



    timer@18102000 {

        compatible = "img,pistachio-gptimer";

        reg = <0x18102000 0x100>;

        interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,

                 <&clk_periph PERIPH_CLK_COUNTER_SLOW>,

                 <&cr_periph SYS_CLK_TIMER>;

        clock-names = "fast", "slow", "sys";

        img,cr-periph = <&cr_periph>;

    };