On Tue, Jun 15, 2021 at 11:48:02AM -0400, Sasha Levin wrote:
> From: Mark Pearson <markpearson@lenovo.com>
> 
> [ Upstream commit 19a0aa9b04c5ab9a063b6ceaf7211ee7d9a9d24d ]
> 
> More laptops identified where the AMD ACP bridge needs to be blocked
> or the microphone will not work when connected to HDMI.
> 
> Use DMI to block the microphone PCM device for these platforms.

You've backported the fix that reverts this a couple of patches later in
the series but might be as well to just not backport either, the end
result is the same.