linux-kernel - Re: [PATCH v1 2/2] dt-bindings: hpet: add loongson2k hpet binding

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Message-ID: <ba5873fa-83fc-2d16-b8c0-715ae8bf630a@linaro.org>
Date:   Fri, 30 Sep 2022 11:58:18 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yinbo Zhu <zhuyinbo@...ngson.cn>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Jianmin Lv <lvjianmin@...ngson.cn>,
        Yun Liu <liuyun@...ngson.cn>,
        Yang Li <yang.lee@...ux.alibaba.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        loongarch@...ts.linux.dev
Subject: Re: [PATCH v1 2/2] dt-bindings: hpet: add loongson2k hpet binding

On 30/09/2022 11:35, Yinbo Zhu wrote:
> Add the loongson2k High Precision Event Timer (HPET) binding
> with DT schema format using json-schema.
> 
> Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
> ---
>  .../bindings/timer/loongson,ls2k-hpet.yaml    | 41 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 42 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
> 
> diff --git a/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml b/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
> new file mode 100644
> index 000000000000..1a8785076228
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/loongson,ls2k-hpet.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson2k High Precision Event Timer (HPET)
> +
> +maintainers:
> +  - Yinbo Zhu <zhuyinbo@...ngson.cn>
> +
> +properties:
> +  compatible:
> +    const: loongson,ls2k-hpet
> +
> +  reg:
> +    maxItems: 1
> +
> +  clock-frequency: true

clock frequency of what? I assume it's too early to use common clock
framework and just get the clock?

> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clock-frequency
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    hpet0: hpet@...24000 {

Node name: timer
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

You can drop the  "hpet0" label.


Best regards,
Krzysztof