diff options
| author | Terry Cheong <htcheong@chromium.org> | 2023-12-12 11:04:33 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-12-15 11:27:34 +0000 |
| commit | 053c901548b751dd10eeae5e0afae8359290bede (patch) | |
| tree | 87133101bd67bc5e15bee9ec5d6d9a3856069f54 /src/mainboard/google/reef/variants/coral | |
| parent | 77f1062e77b7d6d8605b67fc9479457a4abde22f (diff) | |
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>
Diffstat (limited to 'src/mainboard/google/reef/variants/coral')
| -rw-r--r-- | src/mainboard/google/reef/variants/coral/devicetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/reef/variants/coral/devicetree.cb b/src/mainboard/google/reef/variants/coral/devicetree.cb index 9e44d86591..80060f19ba 100644 --- a/src/mainboard/google/reef/variants/coral/devicetree.cb +++ b/src/mainboard/google/reef/variants/coral/devicetree.cb @@ -157,7 +157,7 @@ chip soc/intel/apollolake chip drivers/i2c/da7219 register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_116_IRQ)" register "btn_cfg" = "50" - register "mic_det_thr" = "500" + register "mic_det_thr" = "200" register "jack_ins_deb" = "20" register "jack_det_rate" = ""32ms_64ms"" register "jack_rem_deb" = "1" |