tree 87133101bd67bc5e15bee9ec5d6d9a3856069f54
parent 77f1062e77b7d6d8605b67fc9479457a4abde22f
author Terry Cheong <htcheong@chromium.org> 1702350273 +0800
committer Felix Held <felix-coreboot@felixheld.de> 1702639654 +0000

mb/google: Reduce DA7219 mic detect threshold to 200ohm

The original DA7219 is designed to use a 500ohm mic detection
threshold. Some headset mics (e.g. Logitech H111) have a lower DC impedance that is lower than the threshold and thus cannot be
detected. Lower the threshold to 200ohm to match the new default
value provided by Renasas as in https://patchwork.kernel.org/project/alsa-devel/patch/20231201042933.26392-1-David.Rau.opensource@dm.renesas.com/ to support such headsets.

BUG=b:314062160,b:308207450

Change-Id: I6415e84a4622e0c61bc74b94536fe734048a043f
Signed-off-by: Terry Cheong <htcheong@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79436
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>