Hi David, good to know! Would mean that the combination of HDMI and DSI may make trouble. Maybe we should simply wait ca. 14 days until I have access to my own test setup and can run such tests easily and within minutes myself. Since it is already broken since v5.7-rc1 it should be possible to wait that time :) Best regards, Nikolaus > Am 05.08.2020 um 13:53 schrieb David Shah <dave@xxxxxx>: > > If it helps, I can confirm that HDMI was working fine on the uEVM the last time I test 5.7 (I think it was the final rc before release). > > David > > -------- Original message -------- > From: "H. Nikolaus Schaller" <hns@xxxxxxxxxxxxx> > Date: 05/08/2020 12:49 (GMT+00:00) > To: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>, Tony Lindgren <tony@xxxxxxxxxxx>, Tomi Valkeinen <tomi.valkeinen@xxxxxx>, Linux-OMAP <linux-omap@xxxxxxxxxxxxxxx>, Jyri Sarha <jsarha@xxxxxx>, kernel@xxxxxxxxxxxxxxxxx, Discussions about the Letux Kernel <letux-kernel@xxxxxxxxxxxxxxx>, David Shah <dave@xxxxxx> > Subject: Re: module_mipi_dsi_driver panel with omapdrm? > > Hi, > > > Am 05.08.2020 um 13:28 schrieb Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>: > > > > Hi, > > > > On Wed, Aug 05, 2020 at 11:19:20AM +0200, H. Nikolaus Schaller wrote: > >> What I do not yet understand is how Laurent's patch should be able > >> to break it. > > > > omapdrm will not probe successfully if any DT enabled component > > does not probe correctly. Since the patch you identified touched > > HDMI and VENC and you are probably using HDMI, I suggest looking > > there first. > > Yes, that is a very good explanation. > > Maybe there is a subtle change in how the HDMI connector has to be defined > which is missing in our (private) DTB. Maybe the OMAP5-uEVM DTS gives a hint. > > A quick check shows last hdmi specific change for omap5-board-common or uevm > was in 2017 but I may have missed something. > > There are 715a5a978733f0 and 671ab615bd507f which arrived in v5.7-rc1 as well > and are related to hdmi clocks. So this may be (or not) and influencing factor. > > BR and thanks, > Nikolaus >
