linux-kernel - Re: [PATCH 7/9] arm64: dts: qcom: sa8775p-ride: add the second SGMII PHY

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Message-ID: <7uf7bii3tuejqocnka4wsa5zdys5vnhjretuj66eikgo3if5tl@mga2qbyqdim7>
Date:   Mon, 7 Aug 2023 16:47:55 -0500
From:   Andrew Halaney <ahalaney@...hat.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alex Elder <elder@...aro.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 7/9] arm64: dts: qcom: sa8775p-ride: add the second SGMII
 PHY

On Mon, Aug 07, 2023 at 09:35:05PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Add a second SGMII PHY that will be used by EMAC1 on sa8775p-ride.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> index 55feaac7fa1b..5b48066f312a 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> @@ -286,6 +286,14 @@ sgmii_phy0: phy@8 {
>  			reset-gpios = <&pmm8654au_2_gpios 8 GPIO_ACTIVE_LOW>;
>  			reset-deassert-us = <70000>;
>  		};
> +
> +		sgmii_phy1: phy@a {
> +			compatible = "ethernet-phy-id0141.0dd4";
> +			reg = <0xa>;
> +			device_type = "ethernet-phy";
> +			reset-gpios = <&pmm8654au_2_gpios 9 GPIO_ACTIVE_LOW>;
> +			reset-deassert-us = <70000>;
> +		};

This is connected to the (another) Marvell 88EA1512. I mentioned in the
earlier patch for sgmii_phy0 that you dropped the reset-assert-us.

Unless there was a reason for that, I suspect you want to add it here
too.

Otherwise the description matches the bit of schematic I have access to.

Thanks,
Andrew