On Wed, May 19, 2021 at 8:36 AM Rob Clark <robdclark@xxxxxxxxx> wrote: > > + some more folks and msm list.. > > I suppose I didn't hit this because CONFIG_FBDEV_EMULATION is not > normally enabled for CrOS.. but I'm not really to familiar with > fw_devlink > > BR, > -R > > On Wed, May 19, 2021 at 8:26 AM Caleb Connolly <caleb@xxxxxxxxxxxxx> wrote: > > > > > > Hi, > > > > Since -rc1 I've been hit by some DRM breakage in freedreno which happens > > when fw_devlink=on. It seems to cause some clocks (rcg) to get stuck and > > break DSI displays, here's a full log from the OnePlus 6: > > https://paste.ubuntu.com/p/8kPx4nFGF5/ (that is with > > "deferred_probe_timeout") The PocoPhone F1 also seems to be affected by > > this. > > > > The display will still come up after pressing the power button a few > > times, although it will be incredibly slow. > > > > It's worth noting that the issue only happens with > > CONFIG_FBDEV_EMULATION is enabled, I've previously required this to see > > kernel logs during boot and general boot splash with postmarketOS. > > Without it the display will be stuck on the bootloader splash until I > > press the power button and cause it to update once UI (like Phosh) has > > started (though this has been the case for quite some time). > > > > I'd appreciate any help with debugging / resolving this issue, I'm > > afraid I haven't been able to determine much from some brief digging. > > Hi Caleb, Is this a device that's supported upstream? If so, can you please point me to the DTS file that corresponds to this board? Also, can you please change all the dev_dbg to dev_info in these functions and give me the full boot log? device_link_add() device_links_check_suppliers() Can you also tell what device are not probing with fw_devlink=on that might be probing with fw_devlink=permissive? You should be able to compare /<debugfs>/devices_deferred to figure that out. Thanks, Saravana
