linux-kernel - Re: [Freedreno] [PATCH] Revert "drm/msm/dp: Remove INIT

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Date:   Fri, 02 Jun 2023 01:36:35 +0000
From:   "Leonard Lausen" <leonard@...sen.nl>
To:     "Abhinav Kumar" <quic_abhinavk@...cinc.com>,
        "Kuogee Hsieh" <quic_khsieh@...cinc.com>,
        "Dmitry Baryshkov" <dmitry.baryshkov@...aro.org>,
        "Bjorn Andersson" <andersson@...nel.org>
Cc:     freedreno@...ts.freedesktop.org,
        "Sankeerth Billakanti" <quic_sbillaka@...cinc.com>,
        "Bjorn Andersson" <quic_bjorande@...cinc.com>,
        regressions@...ts.linux.dev, "David Airlie" <airlied@...il.com>,
        "Nikita Travkin" <nikita@...n.ru>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, "Rob Clark" <robdclark@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>, linux-arm-msm@...r.kernel.org,
        "Stephen Boyd" <swboyd@...omium.org>,
        "Sean Paul" <sean@...rly.run>,
        "Johan Hovold" <johan+linaro@...nel.org>
Subject: Re: [Freedreno] [PATCH] Revert "drm/msm/dp: Remove INIT_SETUP delay"

Hi Abhinav,

June 1, 2023 at 3:20 PM, "Abhinav Kumar" <quic_abhinavk@...cinc.com> wrote:
> > 
> >  [drm:drm_mode_config_helper_resume] *ERROR* Failed to resume (-107)
> > 
> 
> We are not able to recreate this on sc7280 chromebooks , will need to check on sc7180. This does not seem directly related to any of the hotplug changes though so needs to be checked separately. So please feel free to raise a gitlab bug for this and assign to me.

Thank you for checking with sc7280. I created https://gitlab.freedesktop.org/drm/msm/-/issues/25 and CCed you. I've also verified that the error persists with v6.4.0-rc4 + Kuogee's patch (just in case you may have tested on sc7280 with 6.4).
 
> >  https://patchwork.freedesktop.org/patch/538601/?series=118148&rev=3
> >  Apologies if you were not CCed on this, if a next version is CCed,
> >  will ask kuogee to cc you.
> >  Meanwhile, will be great if you can verify if it works for you and
> >  provide Tested-by tags.

I see Bjorn also tested the patch. As it fixes a serious USB-C DP regression which broke USB-C DP completely on lazor for v6.3, can it be included in upcoming 6.3.y release?

Thank you
Leonard