Re: [PATCH AUTOSEL 4.4 7/9] ALSA: hda/hdmi: fix failures at PCM open on Intel ICL and later

15 Jul 2020


      Hi Sasha,
On Tue, 14 Jul 2020, Sasha Levin wrote:
...
From: Kai Vehmanen kai.vehmanen@linux.intel.com
[ Upstream commit 56275036d8185f92eceac7479d48b858ee3dab84 ]
When HDMI PCM devices are opened in a specific order, with at least one
HDMI/DP receiver connected, ALSA PCM open fails to -EBUSY on the
connected monitor, on recent Intel platforms (ICL/JSL and newer). While
we don't have Ice Lake hardware support in the HDA HDMI codec driver in 
any 4.x stable trees (only in 5.1+), so this patch will not help on those 
and can be dropped.
Br, Kai