On 21/03/17 11:38, Tomi Valkeinen wrote: > On 20/03/17 13:29, Tomi Valkeinen wrote: >> Hi, >> >> On 05/03/17 01:50, Sebastian Reichel wrote: >>> Hi, >>> >>> Some of you may remember, that I sent a series for the N950 display >>> some time ago. N950 has command mode DSI panel, so the main part of >>> the patchset takes care of adding manual display update support in >>> omapdrm. >>> >>> The N950 also requires display rotation (the panel is mounted vertically >>> and bottom-up) and offset. The required bits will be sent separately. >>> >>> The patchset is based on 2d62e0768d3c, which is the current commit >>> torvald's master branch points to. I tested the patches on N950 >>> with kernel console (fbcon), Tomi's kmstest and Xorg from Debian sid. >>> >>> Rough changelog, most of that work was done by Tony (thanks!) >>> >>> * lots of patches dropped for now >>> * rebased to current omapdrm interface >>> * added OMAP4 support >>> * misc. cleanup >> >> I haven't been able to go through this series with time, but looking at >> the patches, there were multiple places where I felt quite uneasy with >> the changes. It didn't help that many of the patches did not have >> descriptions. >> >> So as an RFC series, it's quite nice and shows that the manual update >> can be gotten to work. But I'm not ready to apply this until the patches >> touching the omapdrm enable, disable and commit sequences are split up >> into smaller patches with proper descriptions. > > I made a quick test on my OMAP4 SDP (it has similar panel to N950), and > I did get a picture on the LCD, and kmstest --flip works. It's tearing, > though, and the fps is ~80, so apparently TE signal is not used for > synchronization here. I think nobody is calling the enable_te(). Oh, and I also see these. [ 42.550170] omapdrm omapdrm.0: lcd: timeout waiting for disable [ 42.690216] omapdrm omapdrm.0: lcd2: timeout waiting for disable [ 104.280212] omapdrm omapdrm.0: lcd: timeout waiting for enable Tomi
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