[PATCH] ucm2: da7213: Add ADC switch in HeadphoneMic2 sequences

[PATCH] ucm2: da7213: Add ADC switch in HeadphoneMic2 sequences

[Le Qi]

Enable and disable the ADC switch in HeadphoneMic2EnableSeq.conf and
HeadphoneMic2DisableSeq.conf to ensure headset microphone audio works
properly on Talos EVK with DA7213 codec.

Without this change, the headset mic path remains muted and capture
does not function.

link: https://github.com/alsa-project/alsa-ucm-conf/commit/8a9581426459e1b423ef87d5ae0fe0a9e21eeaad

Signed-off-by: Le Qi <le.qi@oss.qualcomm.com>
---
 ...ADC-switch-in-HeadphoneMic2-sequence.patch | 47 +++++++++++++++++++
 .../alsa/alsa-ucm-conf_1.2.15.3.bb            |  1 +
 2 files changed, 48 insertions(+)
 create mode 100644 meta/recipes-multimedia/alsa/alsa-ucm-conf/0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch

diff --git a/meta/recipes-multimedia/alsa/alsa-ucm-conf/0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch b/meta/recipes-multimedia/alsa/alsa-ucm-conf/0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch
new file mode 100644
index 000000000000..4ff933cc0c07
--- /dev/null
+++ b/meta/recipes-multimedia/alsa/alsa-ucm-conf/0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch
@@ -0,0 +1,47 @@
+From 8a9581426459e1b423ef87d5ae0fe0a9e21eeaad Mon Sep 17 00:00:00 2001
+From: Le Qi <le.qi@oss.qualcomm.com>
+Date: Wed, 7 Jan 2026 11:20:54 +0800
+Subject: [PATCH] ucm2: da7213: Add ADC switch in HeadphoneMic2 sequences
+
+Enable and disable the ADC switch in HeadphoneMic2EnableSeq.conf and
+HeadphoneMic2DisableSeq.conf to ensure headset microphone audio works
+properly on Talos EVK with DA7213 codec.
+
+Without this change, the headset mic path remains muted and capture
+does not function.
+
+Signed-off-by: Le Qi <le.qi@oss.qualcomm.com>
+Signed-off-by: Jaroslav Kysela <perex@perex.cz>
+Upstream-Status: Backport [https://github.com/alsa-project/alsa-ucm-conf/commit/8a9581426459e1b423ef87d5ae0fe0a9e21eeaad]
+---
+ ucm2/codecs/da7213/HeadphoneMic2DisableSeq.conf | 1 +
+ ucm2/codecs/da7213/HeadphoneMic2EnableSeq.conf  | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/ucm2/codecs/da7213/HeadphoneMic2DisableSeq.conf b/ucm2/codecs/da7213/HeadphoneMic2DisableSeq.conf
+index a42f5f12be93..a9693af90acc 100644
+--- a/ucm2/codecs/da7213/HeadphoneMic2DisableSeq.conf
++++ b/ucm2/codecs/da7213/HeadphoneMic2DisableSeq.conf
+@@ -3,6 +3,7 @@ DisableSequence [
+ 	cset "name='Mixin Left Mic 2 Switch' off"
+ 	cset "name='Mixin Right Mic 2 Switch' off"
+ 	cset "name='Mixin PGA Switch' off"
++	cset "name='ADC Switch' off"
+ 	cset "name='Headphone Switch' off"
+ 	cset "name='Mixout Left DAC Left Switch' off"
+ 	cset "name='Mixout Right DAC Right Switch' off"
+diff --git a/ucm2/codecs/da7213/HeadphoneMic2EnableSeq.conf b/ucm2/codecs/da7213/HeadphoneMic2EnableSeq.conf
+index d3a69e0a550c..42bd9e2ba1fd 100644
+--- a/ucm2/codecs/da7213/HeadphoneMic2EnableSeq.conf
++++ b/ucm2/codecs/da7213/HeadphoneMic2EnableSeq.conf
+@@ -5,6 +5,7 @@ EnableSequence [
+ 	cset "name='Mixin Left Mic 2 Switch' on"
+ 	cset "name='Mixin Right Mic 2 Switch' on"
+ 	cset "name='Mixin PGA Switch' on"
++	cset "name='ADC Switch' on"
+ 	cset "name='DAI Left Source MUX' ADC Left"
+ 	cset "name='DAI Right Source MUX' ADC Right"
+ 	cset "name='Headphone Volume' 85"
+-- 
+2.34.1
+
diff --git a/meta/recipes-multimedia/alsa/alsa-ucm-conf_1.2.15.3.bb b/meta/recipes-multimedia/alsa/alsa-ucm-conf_1.2.15.3.bb
index a2f7bb3c893b..dbb22b6708dd 100644
--- a/meta/recipes-multimedia/alsa/alsa-ucm-conf_1.2.15.3.bb
+++ b/meta/recipes-multimedia/alsa/alsa-ucm-conf_1.2.15.3.bb
@@ -9,6 +9,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=20d74d74db9741697903372ad001d3b4"
 
 SRC_URI = "https://www.alsa-project.org/files/pub/lib/${BP}.tar.bz2"
 SRC_URI += "file://0001-Qualcomm-qcs615-Remove-JackControl-from-TALOS-EVK-Hi.patch"
+SRC_URI += "file://0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch"
 SRC_URI += "file://0001-ucm2-Qualcomm-sa8775p-Remove-Fixed-channel-setting-f.patch"
 SRC_URI += "file://0002-ucm2-Qualcomm-qcs8300-Remove-Fixed-channel-setting-f.patch"
 SRC_URI[sha256sum] = "9f79e813c08fc86cfa46dd75c4fcda1a4a51b482db2607e1fcfaafb92f588a31"
-- 
2.34.1

Re: [OE-core] [PATCH] ucm2: da7213: Add ADC switch in HeadphoneMic2 sequences

[Mathieu Dubois-Briand]

On Fri Mar 27, 2026 at 9:47 AM CET, Le Qi via lists.openembedded.org wrote:
> Enable and disable the ADC switch in HeadphoneMic2EnableSeq.conf and
> HeadphoneMic2DisableSeq.conf to ensure headset microphone audio works
> properly on Talos EVK with DA7213 codec.
>
> Without this change, the headset mic path remains muted and capture
> does not function.
>
> link: https://github.com/alsa-project/alsa-ucm-conf/commit/8a9581426459e1b423ef87d5ae0fe0a9e21eeaad
>
> Signed-off-by: Le Qi <le.qi@oss.qualcomm.com>
> ---

Hi,

I note this will break meta-qcom, but I suspect you are already aware
of this as you added the patch there.

ERROR: alsa-ucm-conf-1.2.15.3-r0 do_patch: Applying patch '/srv/pokybuild/yocto-worker/meta-qcom/build/meta-qcom/recipes-multimedia/alsa/alsa-ucm-conf/0001-ucm2-da7213-Add-ADC-switch-in-HeadphoneMic2-sequence.patch' on target directory '/srv/pokybuild/yocto-worker/meta-qcom/build/build/tmp/work/all-poky-linux/alsa-ucm-conf/1.2.15.3/sources/alsa-ucm-conf-1.2.15.3'
https://autobuilder.yoctoproject.org/valkyrie/#/builders/113/builds/489

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com