linux-kernel - Re: [PATCH v2] phy: qcom: phy-qcom-m31: Update IPQ5332 M31 USB phy initialization sequence

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Message-ID: <2ac4f10d-c9d4-42a5-afff-54153f8531e1@oss.qualcomm.com>
Date: Mon, 30 Jun 2025 12:29:13 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Varadarajan Narayanan <quic_varada@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: [PATCH v2] phy: qcom: phy-qcom-m31: Update IPQ5332 M31 USB phy
 initialization sequence



On 30-Jun-25 10:18, Kathiravan Thirumoorthy wrote:
> The current configuration used for the IPQ5332 M31 USB PHY fails the
> Near End High Speed Signal Quality compliance test. To resolve this,
> update the initialization sequence as specified in the Hardware Design
> Document.
> 
> Fixes: 08e49af50701 ("phy: qcom: Introduce M31 USB PHY driver")
> Cc: stable@...nel.org
> Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad