dsi is not initialized in lk, since no panel get selected. [6400] [6400] Device tree exact match the board: <247 65560 0 0x2> == <247 24 2 0x10000> [6410] [6410] Best match DTB tags 247/00010018/0x00000002/0/2000 b/0/0/0/908b7326/cbdb [6420] [6420] Using pmic info 0x2000b/0x0/0x0/0x0 for device 0x2000b/0x0/0x0/0x0 [6430] [6430] target_display_panel_node:510: hw_id=24 panel_name="" [190] [190] Neither 'config' nor 'frp' partition found [190] [190] Display Init: Start [200] [200] Not able to search the panel: [200] [200] Display not enabled for 24 HW type [200] [200] Target panel init not found! [210] [210] Display Init: Done i even tried adding in cmdline for clk_ignore_unused=1 pd_ignore_unused=1. in this case display will note come even for reboot/resume from suspend. actually dsi2lvds working in kernel-v4.4.23(kernel-16.09 linaro release) i do observer the same behaviour in kernel-v4.9.56 (kernel -17.09 linaro relase) and kernel-v4.14.15(kernel-18.01 linaro relase). so looks like there are some diffs between v4.4.23 - v4.9.56 On Thu, Apr 12, 2018 at 5:45 AM, Rob Clark wrote: > I'm not sure if this is any way related to (since you mentioned > regression btwn 4.9 and 4.14): > > https://lists.freedesktop.org/archives/dri-devel/2018-April/172152.html > > given the mention of working when resume from suspend, I might suggest > to try disabling bootloader enabling the display (ie. for splash > screen), since that can cause plenty of issues > > BR, > -R > > On Wed, Apr 11, 2018 at 12:38 PM, Vinay Simha B N > wrote: > > hi, > > > > we have apq8016 : IFC6309 board (ref : 410c snapdragon), dsi2lvds > interfaced > > to the board, dsi2lvds working fine in 4.9 kernel , but the same > dsi2lvds > > driver in 4.14 kernel it works only when system comes resumes from > suspend > > or when i issue the reboot command. > > It does not works when it boots, please suggest. > > > > attached kernel log > > https://pastebin.com/TUNWecQR > > > > kernel src > > https://github.com/vinaysimhabn/msm/commits/kernel-18.01-lvdsv1.0 > > > > > > -- > > regards, > > vinaysimha > > > > _______________________________________________ > > Freedreno mailing list > > Freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > > https://lists.freedesktop.org/mailman/listinfo/freedreno > > > -- regards, vinaysimha