linux-kernel - Re: [PATCH v2 1/4] dt-bindings: clock: sophgo: Add clock controller of CV1800 series SoC

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Message-ID: <20231205-chump-ravage-2c5478289421@spud>
Date:   Tue, 5 Dec 2023 16:32:34 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Inochi Amaoto <inochiama@...look.com>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Chen Wang <unicorn_wang@...look.com>,
        Jisheng Zhang <jszhang@...nel.org>, qiujingbao.dlmu@...il.com,
        dlan@...too.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] dt-bindings: clock: sophgo: Add clock controller
 of CV1800 series SoC

On Tue, Dec 05, 2023 at 07:55:50PM +0800, Inochi Amaoto wrote:
> Add definition for the clock controller of the CV1800 series SoC.
> 
> Signed-off-by: Inochi Amaoto <inochiama@...look.com>
> Link: https://github.com/milkv-duo/duo-files/blob/main/hardware/CV1800B/CV1800B-CV1801B-Preliminary-Datasheet-full-en.pdf
> ---
>  .../bindings/clock/sophgo,cv1800-clk.yaml     |  53 ++++++
>  include/dt-bindings/clock/sophgo,cv1800.h     | 174 ++++++++++++++++++
>  2 files changed, 227 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
>  create mode 100644 include/dt-bindings/clock/sophgo,cv1800.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
> new file mode 100644
> index 000000000000..388be5bfa163
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/sophgo,cv1800-clk.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo CV1800 Series Clock Controller
> +
> +maintainers:
> +  - Inochi Amaoto <inochiama@...look.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - sophgo,cv1800-clk
> +      - sophgo,cv1810-clk

I'm not reading 1000s of lines of driver code to figure it out, what
differs in the programming model for these two devices? You should
mention in your commit message why the cv1810 has an incompatible
programming model if you are adding multiple devices in one commit
message.

> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Oscillator (25 MHz)

This could just be "maxItems: 1".

> +
> +  clock-names:
> +    items:
> +      - const: osc

You have one clock, why do you need a name?

Otherwise, this looks okay, thanks.

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