On 16 May 2014 07:24, Tomi Valkeinen <tomi.valkeinen@xxxxxx> wrote: > 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. Yes, disabling HDMI audio config option makes the panic disappear. But since nothing prevents you from turning on this option this is not a solution. > 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 With the patch 59b3d38a36913 reverted I actually have 2 "omap-hdmi-audio-dai" entries in iomem: 48046000-48046fff : omap-hdmi-audio-dai 58006000-58006fff : omap-hdmi-audio-dai The first one disappear after patch 59b3d38a36913 is applied. > 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. I see. Would be nice have this fixed before the stuff hits mainline. regards Joachim Eastwood -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
