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

From: Sasha Levin
Date: Wed Jul 22 2020 - 09:48:53 EST


On Wed, Jul 15, 2020 at 01:52:05PM +0300, Kai Vehmanen wrote:
Hi Sasha,

On Tue, 14 Jul 2020, Sasha Levin wrote:

From: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>

[ 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.

Will do, thank you.

--
Thanks,
Sasha