From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Joachim Eastwood <manabian@gmail.com>, Jyri Sarha <jsarha@ti.com>
Cc: linux-omap@vger.kernel.org
Subject: Re: DSS and HDMI kernel panic on OMAP4
Date: Fri, 16 May 2014 08:24:08 +0300 [thread overview]
Message-ID: <5375A0F8.9000208@ti.com> (raw)
In-Reply-To: <CAGhQ9VxU1Zk0Prdq-PwkM=e8W6pZ=JXFa__xjCx4ofCVyWJ0kw@mail.gmail.com>
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On 16/05/14 00:26, Joachim Eastwood wrote:
> On 15 May 2014 23:14, Joachim Eastwood <manabian@gmail.com> 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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next prev parent reply other threads:[~2014-05-16 5:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-15 21:14 DSS and HDMI kernel panic on OMAP4 Joachim Eastwood
2014-05-15 21:26 ` Joachim Eastwood
2014-05-16 5:24 ` Tomi Valkeinen [this message]
2014-05-16 18:48 ` Joachim Eastwood
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