linux-kernel - Re: [PATCH] ARM: dts: aspeed: anacapa: Add retimer EEPROMs

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Message-ID: <324adcf0cbf87ef1186c70f09ab0e0ee2e29017c.camel@codeconstruct.com.au>
Date: Mon, 09 Feb 2026 17:20:51 +1030
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: dirkchen@....com, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
	 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Joel Stanley
	 <joel@....id.au>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: aspeed: anacapa: Add retimer EEPROMs

On Mon, 2026-02-02 at 10:29 +0800, Dirk Chen via B4 Relay wrote:
> From: Dirk Chen <dirkchen@....com>
> 
> Add Atmel 24C2048 EEPROMs on i2c0 and i2c1 to support retimer
> configuration. Follow the same compatible string usage as the
> Facebook Harma platform to maintain consistency across Meta boards.

This description seems surprising.

Does the change reflect the hardware or not? What's the significance of
the consistency comment if so?

Andrew

> 
> Signed-off-by: Dirk Chen <dirkchen@....com>
> ---
>  arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts | 12
> ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
> b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
> index 221af858cb6b..b8d248d99d7c 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa.dts
> @@ -328,6 +328,12 @@ i2c0mux0ch3: i2c@3 {
>  			#size-cells = <0>;
>  		};
>  	};
> +
> +	eeprom@50 {
> +		compatible = "atmel,24c2048";
> +		reg = <0x50>;
> +		pagesize = <128>;
> +	};
>  };
>  
>  // R Bridge Board
> @@ -362,6 +368,12 @@ i2c1mux0ch3: i2c@3 {
>  			#size-cells = <0>;
>  		};
>  	};
> +
> +	eeprom@50 {
> +		compatible = "atmel,24c2048";
> +		reg = <0x50>;
> +		pagesize = <128>;
> +	};
>  };
>  
>  // MB - E1.S
> 
> ---
> base-commit: 4c87cdd0328495759f6e9f9f4e1e53ef8032a76f
> change-id: 20260202-b4-anacapa-dts-fix-207ffe9a3b0c
> 
> Best regards,