linux-kernel - Re: [PATCH v1 7/7] riscv: dts: starfive: visionfive-v2: Add phy delay

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Message-ID: <Y4kAyAhBseNmmDo8@spud>
Date:   Thu, 1 Dec 2022 19:30:16 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Yanhong Wang <yanhong.wang@...rfivetech.com>
Cc:     linux-riscv@...ts.infradead.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Richard Cochran <richardcochran@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Peter Geis <pgwipeout@...il.com>
Subject: Re: [PATCH v1 7/7] riscv: dts: starfive: visionfive-v2: Add phy
 delay_chain configuration

On Thu, Dec 01, 2022 at 05:49:08PM +0000, Conor Dooley wrote:
> On Thu, Dec 01, 2022 at 05:02:42PM +0800, Yanhong Wang wrote:
> > riscv: dts: starfive: visionfive-v2: Add phy delay_chain configuration
> > 
> > Add phy delay_chain configuration to support motorcomm phy driver for
> > StarFive VisionFive 2 board.

nit: please re-word this commit next time around to actually say what
you're doing here. I didn't notice it initially, but this patch is doing
a lot more than adding `delay_chain` configuration. To my dwmac unaware
brain, there's nothing hits for that term outside of the changelog :(

Thanks,
Conor.

> > 
> > Signed-off-by: Yanhong Wang <yanhong.wang@...rfivetech.com>
> > ---
> >  .../jh7110-starfive-visionfive-v2.dts         | 46 +++++++++++++++++++
> >  1 file changed, 46 insertions(+)
> > 
> > diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> > index c8946cf3a268..2868ef4c74ef 100644
> > --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> > +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
> > @@ -15,6 +15,8 @@
> >  
> >  	aliases {
> >  		serial0 = &uart0;
> > +		ethernet0=&gmac0;
> > +		ethernet1=&gmac1;
> 
> Please match the whitespace usage of the existing entry.
> 
> >  	};
> >  
> >  	chosen {
> > @@ -114,3 +116,47 @@
> >  	pinctrl-0 = <&uart0_pins>;
> >  	status = "okay";
> >  };
> > +
> > +&gmac0 {
> > +	status = "okay";
> > +	#address-cells = <1>;
> > +	#size-cells = <0>;
> > +	phy-handle = <&phy0>;
> > +	status = "okay";
> > +	mdio0 {
> 
> A line of whitespace before the child nodes too please :)
> 
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +		compatible = "snps,dwmac-mdio";
> > +		phy0: ethernet-phy@0 {
> > +			reg = <0>;
> > +			rxc_dly_en = <1>;
> > +			tx_delay_sel_fe = <5>;
> > +			tx_delay_sel = <0xa>;
> > +			tx_inverted_10 = <0x1>;
> > +			tx_inverted_100 = <0x1>;
> > +			tx_inverted_1000 = <0x1>;
> > +		};
> > +	};
> > +};
> > +
> > +&gmac1 {
> > +	status = "okay";
> > +	#address-cells = <1>;
> > +	#size-cells = <0>;
> > +	phy-handle = <&phy1>;
> > +	status = "okay";
> > +	mdio1 {
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +		compatible = "snps,dwmac-mdio";
> > +		phy1: ethernet-phy@1 {
> > +			reg = <1>;
> > +			tx_delay_sel_fe = <5>;
> > +			tx_delay_sel = <0>;
> > +			rxc_dly_en = <0>;
> > +			tx_inverted_10 = <0x1>;
> > +			tx_inverted_100 = <0x1>;
> > +			tx_inverted_1000 = <0x0>;
> > +		};
> > +	};
> > +};
> > -- 
> > 2.17.1
> >