linux-kernel - Re: [PATCH v5 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator

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Date:   Tue, 13 Jun 2023 20:06:05 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Xingyu Wu <xingyu.wu@...rfivetech.com>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Conor Dooley <conor+dt@...nel.org>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Hal Feng <hal.feng@...rfivetech.com>,
        William Qiu <william.qiu@...rfivetech.com>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v5 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock
 generator

Hey Xingyu,

Couple nitpick items to be fixed if you resubmit.

On Tue, Jun 13, 2023 at 08:58:46PM +0800, Xingyu Wu wrote:
> +  This PLL are high speed, low jitter frequency synthesizers in JH7110.

nit: These PLLs are

> +  Each PLL clocks work in integer mode or fraction mode by some dividers,
> +  and the configuration registers and dividers are set in several syscon
> +  registers. So pll node should be a child of SYS-SYSCON node.

nit: Each PLL can work in integer or fractional mode, with controlled by
configuration registers in the sys syscon.

> +  The formula for calculating frequency is that,

nit: s/ that//

> +examples:
> +  - |
> +    pll-clock-controller {

nit: s/pll-//

> diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
> index 06257bfd9ac1..086a6ddcf380 100644
> --- a/include/dt-bindings/clock/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
> @@ -6,6 +6,12 @@
>  #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
>  #define __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
>  
> +/* PLL clocks */
> +#define JH7110_CLK_PLL0_OUT			0
> +#define JH7110_CLK_PLL1_OUT			1
> +#define JH7110_CLK_PLL2_OUT			2
> +#define JH7110_PLLCLK_END			3

Please CC me on the patches fixing this for U-Boot :)

Nitpicking aside, which only needs to be fixed if you end up submitting
a new version for other reasons,
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

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