linux-kernel - Re: [PATCH 3/6] phy: qcom-qmp: qserdes-txrx: Add QMP PCIe PHY v8-specific register offsets

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: <aO9m8PA5QMb5JDgz@hu-qianyu-lv.qualcomm.com>
Date: Wed, 15 Oct 2025 02:18:40 -0700
From: Qiang Yu <qiang.yu@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Jingyi Wang <jingyi.wang@....qualcomm.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kwilczynski@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, aiqun.yu@....qualcomm.com,
        tingwei.zhang@....qualcomm.com, trilok.soni@....qualcomm.com,
        yijie.yang@....qualcomm.com
Subject: Re: [PATCH 3/6] phy: qcom-qmp: qserdes-txrx: Add QMP PCIe PHY
 v8-specific register offsets

On Mon, Oct 13, 2025 at 03:40:32PM +0300, Dmitry Baryshkov wrote:
> On Mon, Oct 13, 2025 at 03:21:19AM -0700, Qiang Yu wrote:
> > On Thu, Sep 25, 2025 at 05:28:15AM +0300, Dmitry Baryshkov wrote:
> > > On Wed, Sep 24, 2025 at 04:33:19PM -0700, Jingyi Wang wrote:
> > > > From: Qiang Yu <qiang.yu@....qualcomm.com>
> > > > 
> > > > Kaanapali SoC uses QMP PHY with version v8 for PCIe Gen3 x2, but its
> > > > qserdes-txrx register offsets differ from the existing v8 offsets. To
> > > > accommodate these differences, add the qserdes-txrx specific offsets in
> > > > a dedicated header file.
> > > 
> > > With this approach it's not obvious, which register names are shared
> > > with the existing header and which fields are unique. Please provide a
> > > full set of defines in this header.
> > 
> > Sorry, I didn't get you. Do you mean we need to add defines for all PCIe
> > qserdes-txrx registers? I don't understand how this makes which register
> > names are shared and which fields are unique more obvious.
> 
> From your commit message it feels like
> phy-qcom-qmp-qserdes-txrx-pcie-v8.h is an extension over some other
> "base" header file (likely phy-qcom-qmp-qserdes-txrx-v8.h. It makes it
> harder to follow the logic and harder to compare the values. Please
> define all used register names inside the new header.

No, the new header file is not an extension. It's a full set of
qserdes-txrx register definitions required for Kaanapali PCIe PHY.

Let me rewrite my commit msg.

- Qiang Yu
> 
> 
> -- 
> With best wishes
> Dmitry