linux-kernel - Re: [PATCH v2 6/8] riscv: dts: starfive: Add initial StarFive JH7110 device tree

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Date:   Fri, 18 Nov 2022 12:01:28 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Hal Feng <hal.feng@...rfivetech.com>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        Palmer Dabbelt <palmer@...belt.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Ben Dooks <ben.dooks@...ive.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/8] riscv: dts: starfive: Add initial StarFive JH7110
 device tree

On Fri, Nov 18, 2022 at 09:17:12AM +0800, Hal Feng wrote:
> From: Emil Renner Berthing <kernel@...il.dk>
> 
> Add initial device tree for the JH7110 RISC-V SoC by StarFive
> Technology Ltd.
> 
> Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
> Co-developed-by: Jianlong Huang <jianlong.huang@...rfivetech.com>
> Signed-off-by: Jianlong Huang <jianlong.huang@...rfivetech.com>
> Co-developed-by: Hal Feng <hal.feng@...rfivetech.com>
> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> ---
>  arch/riscv/boot/dts/starfive/jh7110.dtsi | 437 +++++++++++++++++++++++
>  1 file changed, 437 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/starfive/jh7110.dtsi
> 
> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> new file mode 100644
> index 000000000000..c22e8f1d2640
> --- /dev/null
> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> @@ -0,0 +1,437 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
> + * Copyright (C) 2022 Emil Renner Berthing <kernel@...il.dk>

@Emil, I feel like I have to ask given the 2022 date, but should this
stuff be attributed to your canonical address or is this fine?

Other than that, a cursory check /looks/ fine, other than the:

> +       gmac0_rgmii_rxin: gmac0_rgmii_rxin {
> +               compatible = "fixed-clock";
> +               #clock-cells = <0>;
> +               /* This value must be overridden by the board */
> +               clock-frequency = <0>;
> +       };

If you remove the clock-frequency = <0> bit, dtb validation will force
people to set the value in jh7110-board.dts which I'd prefer to rely on
than a comment.

Glad to see you sorted out the clock/reset stuff too!

Thanks,
Conor.