Hi Nikolaus, On Tue, Nov 19, 2019 at 10:42:55AM +0100, H. Nikolaus Schaller wrote: > > Am 18.11.2019 um 15:51 schrieb H. Nikolaus Schaller <h...@goldelico.com>: > > > >> Ok, I tried not to break video mode support, but I do not have any > >> hardware. Make sure to set the MIPI_DSI_MODE_VIDEO flag in the panel > >> driver. > > > > Indeed, this may be missing (can't look into the code at the moment)... > > Or I did something wrong when refactoring the driver. > > We will find out. > > Yes, MIPI_DSI_MODE_VIDEO was indeed missing/wrongly applied and some > more bugs. But I still wasn't able to make it work. > > I also tried to fake the panel-orisetech-otm8009a.c DSI driver into > my setup. It should not properly program the panel by DCS command > but it should try to. > > Result is the same: I can see it being probed and calling get_modes > but then: > > [drm] Cannot find any crtc or sizes > > And I don't see calls to .enable or .prepare where DCS commands would > be sent.
You probably want to enable all kind of drm debugging to get more information. I guess, that some timing check fails, e.g. dsi_check_timings(). If the timing checks fail, the mode will not be added as valid mode. When no valid mode is found, the panel will not be enabled. -- Sebastian
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