[Bug 94566] [BAT SKL]igt at kms_pipe_crc_basic@suspend-read-crc-pipe-c fails suspend autoresume
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Mar 18 22:07:26 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94566
--- Comment #20 from Imre Deak <imre.deak at intel.com> ---
(In reply to Takashi Iwai from comment #17)
> And, one more problem is that we gather up the all codecs as a single card.
> Blocking a probe of one codec means to block the probe of the whole card.
> So we can't take unlimited block behavior.
Can you still separate interface registration from HW access? I assume the
latter could be delay until the user first opens the device node, so you could
do the blocking there and register the corresponding interface earlier.
> (And the unlimited block is anyway bad especially when the configuration is
> dynamic; you can disable KMS easily via nomodeset, while the HD-audio driver
> will still try to probe HDMI codec because it doesn't know that the graphics
> side is disabled. Then it'll stall.)
Can the above help?
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