linux-kernel - Re: [PATCH v8 0/5] Support for Qualcomm UFS QMP PHY on SDM845

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Date:   Thu, 30 Aug 2018 18:10:33 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Vivek Gautam <vivek.gautam@...eaurora.org>
Cc:     Can Guo <cang@...eaurora.org>,
        Subhash Jadavani <subhashj@...eaurora.org>,
        asutoshd@...eaurora.org, Manu Gautam <mgautam@...eaurora.org>,
        kishon <kishon@...com>, robh+dt <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v8 0/5] Support for Qualcomm UFS QMP PHY on SDM845

On Thu 30 Aug 03:44 PDT 2018, Vivek Gautam wrote:

> On Thu, Aug 30, 2018 at 11:46 AM Bjorn Andersson
> <bjorn.andersson@...aro.org> wrote:
> >
> > On Tue 31 Jul 03:09 PDT 2018, Can Guo wrote:
> >
> > > This patch series adds support for UFS QMP PHY on SDM845 and the
> > > compatible string for it. This patch series depends on the current
> > > proposed QMP V3 USB3 UNI PHY support for sdm845 driver [1], on
> > > the DT bindings for the QMP V3 USB3 PHYs based dirver [2], and also
> > > rebased on updated pipe_clk initialization sequence [3]. This series
> > > can only be merged once the dependent patches do.
> > > [1] http://lists-archives.com/linux-kernel/29071659-dt-bindings-phy-qcom-qmp-update-bindings-for-sdm845.html
> > > [2] http://lists-archives.com/linux-kernel/29071660-phy-qcom-qmp-add-qmp-v3-usb3-uni-phy-support-for-sdm845.html
> > > [3] https://patchwork.kernel.org/patch/10376551/
> > >
> >
> > Hi Can,
> >
> > We still have the issue that the older non-QMP phy driver takes a direct
> > call to ufs_qcom_phy_set_tx_lane_enable(), which means that pointing
> > UFSHCD to this phy implementation results in a kernel panic.
> 
> Hi Bjorn,
> 
> I have a series that removes couple of these function calls -
> ufs_qcom_phy_set_tx_lane_enable(), and
> ufs_qcom_phy_save_controller_version() from ufs-qcom, and
> make phy-qcom-ufs-qmp-20nm as broken.
> I can post it out if that sounds okay.
> 

That sounds really good, please do sent that out.

Regards,
Bjorn