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Message-ID: <7deff127-4c6d-1f59-33a8-f44eea86bacd@quicinc.com>
Date:   Thu, 25 May 2023 10:57:15 -0700
From:   Kuogee Hsieh <quic_khsieh@...cinc.com>
To:     Leonard Lausen <leonard@...sen.nl>,
        Abhinav Kumar <quic_abhinavk@...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"


On 5/24/2023 5:58 AM, Leonard Lausen wrote:
>>>>>>> [  275.025497] [drm:dpu_encoder_phys_vid_wait_for_commit_done:488]
>>>>>>> [dpu error]vblank timeout
>>>>>>> [  275.025514] [drm:dpu_kms_wait_for_commit_done:510] [dpu error]wait
>>>>>>> for commit done returned -110
>>>>>>> [  275.064141] [drm:dpu_encoder_frame_done_timeout:2382] [dpu
>>>>>>> error]enc33 frame done timeout
>>>>> This is a different crash but the root-cause of both the issues is the
>>>>> bridge hpd_enable/disable series.
>>>>>
>>>>> https://patchwork.freedesktop.org/patch/514414/
>>> Yes, the new patch to fix this issue is here
>>>
>>> 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.
>> Hi Leonard,
>>
>> I had  cc you with v5 patches.
>>
>> Would you please verify it.
> Hi Kuogee,
>
> thank you. Verified the v6 patch fixes the regression when ported to
> 6.3.3. One non-fatal issue remains: Suspending and resuming the system
> while USB-C DP monitor is connected triggers an error, though the system
> recovers within a second without the need to unplug the cable.
>
> [drm:drm_mode_config_helper_resume] *ERROR* Failed to resume (-107)
>
>
> dmesg snippet related to the suspend below
>
>
> [  197.845110] usb 2-1.4.4: reset SuperSpeed USB device number 12 using xhci-hcd
> [  198.235191] [drm:drm_mode_config_helper_resume] *ERROR* Failed to resume (-107)

Hi Leonard,

I did not see this problem at my setup (Kodiak) during suspend/resume.

Will investigate more on Trogdor device.

Thanks,


> [  198.528638] OOM killer enabled.
> [  198.531866] Restarting tasks ...
> [  198.531994] usb 1-1.4.4.1: USB disconnect, device number 27
> [  198.532223] usb 1-1.4.3: USB disconnect, device number 23
> [  198.532509] usb 1-1.4.2.1: USB disconnect, device number 29
> [  198.534805] r8152-cfgselector 2-1.4.4.2: USB disconnect, device number 13
> [  198.535444] done.
> [  198.535536] usb 1-1.1: USB disconnect, device number 15
> [  198.567811] random: crng reseeded on system resumption
> [  198.583431] PM: suspend exit

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