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

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Message-ID: <20200722134847.GC406581@sasha-vm>
Date:   Wed, 22 Jul 2020 09:48:47 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Kai Vehmanen <kai.vehmanen@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        alsa-devel@...a-project.org, Takashi Iwai <tiwai@...e.de>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Subject: Re: [PATCH AUTOSEL 4.4 7/9] ALSA: hda/hdmi: fix failures at PCM open
 on Intel ICL and later

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@...ux.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.

Will do, thank you.

-- 
Thanks,
Sasha