On 16/05/14 00:26, Joachim Eastwood wrote: > On 15 May 2014 23:14, Joachim Eastwood <manabian@xxxxxxxxx> wrote: >> Hello Tomi, >> >> I wanted to test my Variscite patches after Tony merged them into his >> 3.16 dt branch so created a base branch from Linus master and pull in >> Tony's 3.16 dt and your dss for-next branch. >> >> I discovered that booting with a HDMI monitor connected or plugging in >> one cause a kernel panic. See the log at: >> http://slexy.org/raw/s20xo68UPx >> >> Any idea what it could be? >> >> I also noted this in the boot log: >> [ 0.984527] omapdss_hdmi 58006000.encoder: can't request region for >> resource [mem 0x58006400-0x580073ff] >> >> I don't think I have seen this before. >> >> What I previously have tested have been Linus master + my Variscite >> patches and your panel-dpi dt + hdmi hpd patches cherry-picked. > > Reverting "OMAPDSS: HDMI: cleanup ioremaps" 59b3d38a3691396783df108 > from your for-next branch fixes the problem. I think that's somehow HDMI audio enabled. I bet if you disable HDMI audio, the error goes away. If I cat /proc/iomem, I see: 58006000-58006fff : omap-hdmi-audio-dai 58006200-580062ff : pll 58006300-580063ff : phy Without sound support, I don't get the error and I see: 58006200-580062ff : pll 58006300-580063ff : phy 58006400-580073ff : core Reverting 59b3d38a3691396783df108e6afbba30656edccb helps, because before that patch the hdmi driver didn't actually reserve the regions. So, I don't really have any idea yet what's going on there, but the problem is somewhere around hdmi audio. Tomi
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