linux-kernel - Re: [PATCH] phy: qcom: qmp-combo: Add polarity inversion support for SAR2130P

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <ywovlyojskgv7hbkr5tjtmsiwkf7tmgzw4puy7zb54kvmt3mzw@zq5etee6pjwf>
Date: Fri, 17 Oct 2025 23:55:31 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
Cc: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phy: qcom: qmp-combo: Add polarity inversion support for
 SAR2130P

On Sat, Oct 18, 2025 at 02:04:38AM +0530, Krishna Kurapati wrote:
> On SAR2130P QXR Platform, the CC Lines are inverted and the lane
> programming is to be done reverse compared to other targets.
> 
> As per the HW specifics, Bit-2 of TYPEC_CTRL register indicates
> port select polarity. This bit is to be set for SAR2130P.
> 
> Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
> ---
>  drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>

I wasn't able to test USB 3 while I had the device, but this seems to be
correct.

-- 
With best wishes
Dmitry