Messages in this thread | | | Date | Wed, 8 Nov 2023 10:10:32 -0800 | Subject | Re: [PATCH v7 0/7] incorporate pm runtime framework and eDP clean up | From | Kuogee Hsieh <> |
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On 11/7/2023 1:23 PM, Dmitry Baryshkov wrote: > On Tue, 7 Nov 2023 at 23:01, Kuogee Hsieh <quic_khsieh@quicinc.com> wrote: >> >> On 11/6/2023 5:55 PM, Dmitry Baryshkov wrote: >>> On Sat, 7 Oct 2023 at 01:55, Kuogee Hsieh <quic_khsieh@quicinc.com> wrote: >>>> The purpose of this patch series is to incorporate pm runtime framework >>>> into MSM eDP/DP driver so that eDP panel can be detected by DRM eDP panel >>>> driver during system probe time. During incorporating procedure, original >>>> customized pm realted fucntions, such as dp_pm_prepare(), dp_pm_suspend(), >>>> dp_pm_resume() and dp_pm_prepare(), are removed and replaced with functions >>>> provided by pm runtiem framework such as pm_runtime_force_suspend() and >>>> pm_runtime_force_resume(). In addition, both eDP aux-bus and irq handler >>>> are bound at system probe time too. >>> With this patchset in place I can crash the board using the following >>> sequence (SM8350-HDK): >>> >>> - plug the USBC DP dongle >>> - run modetest at any mode, don't press Enter yet >>> - unplug the dongle >>> - press Enter to stop modetest >>> >>> => the board resets to Sahara. >>> >>> Please ping me if you need any additional information from my side. >> questiosn, >> >> 1) which dongle are you used? > I have used several Dell and Hama USB-C dongles. > >> 2) what code branch shoud I used to duplicate this problem. > I have pushed my kernel tree to > git.codelinaro.org/dmitry.baryshkov/linux.git, branch test-dp-rpm > I had several UCSI patches on top, but they should not be relevant. git.codelinaro.org/dmitry.baryshkov/linux.git, branch test-dp-rpm <== I synced out his branch and it is still work at my chromebook Kodiak DUT. > >> I can not duplicate system crash problem at my setup kodiak (SM7325) >> chrome book with my PM runtime patch series. >> >> my code base is Linux 6.6-rc2 + pm runtime patch series (7 patches) >> >> I did: >> >> 1) plugin either apple dongle (DP-to-HDMI) + 1080p display or DP typeC >> cable directly to 1080p display >> >> 2) stop ui >> >> 3) /usr/bin/modetest -M msm -s 34:1920x1080 (see test pattern show at >> display) >> >> 4) unplug apple dongle or DP typeC cable >> >> 5) hit enter key >> >> 6) start ui >> >> 7) display back to login page of chrome book >> >> >
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