linux-kernel - Re: [PATCH v3 5/9] riscv: dts: starfive: jh7100-common: Setup pinmux and enable gmac

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Message-ID: <cb18617d-e34a-4c3e-a37a-1b051587f8b5@collabora.com>
Date: Mon, 18 Dec 2023 13:41:53 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Emil Renner Berthing <emil.renner.berthing@...onical.com>,
 "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>,
 Conor Dooley <conor+dt@...nel.org>, Emil Renner Berthing <kernel@...il.dk>,
 Samin Guo <samin.guo@...rfivetech.com>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
 Hal Feng <hal.feng@...rfivetech.com>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Jose Abreu <joabreu@...opsys.com>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Richard Cochran <richardcochran@...il.com>,
 Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
 linux-clk@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v3 5/9] riscv: dts: starfive: jh7100-common: Setup pinmux
 and enable gmac

On 12/16/23 21:38, Emil Renner Berthing wrote:
> Cristian Ciocaltea wrote:
>> Add pinmux configuration for DWMAC found on the JH7100 based boards and
>> enable the related DT node, providing a basic PHY configuration.
>>
>> Co-developed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
>> Signed-off-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
>> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
>> ---
>>  .../boot/dts/starfive/jh7100-common.dtsi      | 85 +++++++++++++++++++
>>  1 file changed, 85 insertions(+)
>>
>> diff --git a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
>> index 42fb61c36068..5cafe8f5c2e7 100644
>> --- a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
>> +++ b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
>> @@ -72,7 +72,92 @@ wifi_pwrseq: wifi-pwrseq {
>>  	};
>>  };
>>
>> +&gmac {
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&gmac_pins>;
>> +	phy-mode = "rgmii-id";
>> +	phy-handle = <&phy>;
> 
> I'm not sure if it's a generic policy or not, but I don't really like adding a
> reference to a non-existant node here. I'd move this property to the board
> files where the phy node is actually defined.

Totally agree, I simply went too far while dropping duplicated code and
didn't realize the mistake.  Thanks for noticing!