SRU: https://lists.ubuntu.com/archives/kernel-
team/2021-August/123347.html (oem-5.13, impish, unstable)
** Description changed:
+ [SRU Justification]
+
+ [Impact]
+
+ Dolphin devices have CS8409 HDA Bridge connected to two CS42L42 codecs.
+ Codec 1 supports Headphone and Headset Mic. Codec 2 supports Line Out.
+
+ [Fix]
+
+ In order to support multiple CS42L42 codecs connected to a CS8409 HDA
+ Bridge, a changeset of 27 patches is proposed to
+
https://patchwork.kernel.org/project/alsa-devel/cover/[email protected]/
+ (now in linux-next), as well as two additional patches in
+
https://lore.kernel.org/lkml/[email protected]/
+ that fixes pop sounds at insertion of earphone jack and reboot. The
+ second patch of the latter changeset is on hold because of another fix
+ series that deprecates the reboot_notify callback of HD-audio by
+ forcibly doing runtime-suspend at shutdown.
+
+ A Ubuntu sauced patch is also added to enable the now stand alone
+ module snd-hda-codec-cs8409.
+
+ [Test Case]
+
+ Test on oem dolphin platform, as well as previous cs8409 platforms with
+ one single codec.
+
+ [Where problems could occur]
+ [Other Info]
+
+ This also fixes default sample rate problem that was previously fixed by
+ a oem-only package oem-fix-audio-cirrus-default-sample-rate.
+
+ ========== original bug report ==========
+
Dolphin devices have CS8409 HDA Bridge connected to two CS42L42 codecs.
Codec 1 supports Headphone and Headset Mic.
Codec 2 supports Line Out.
Features:
- - Front and Read Jacks appear as separate jacks; Removal or connection
- of on jack should not affect the connection of the other.
- - Front Jack only shows up on jack detection.
- - Rear Jack is Phantom Jack.
- - Separate Volume Controls for each Jack
+ - Front and Read Jacks appear as separate jacks; Removal or connection
+ of on jack should not affect the connection of the other.
+ - Front Jack only shows up on jack detection.
+ - Rear Jack is Phantom Jack.
+ - Separate Volume Controls for each Jack
** Description changed:
[SRU Justification]
- [Impact]
-
- Dolphin devices have CS8409 HDA Bridge connected to two CS42L42 codecs.
+ [Impact]
+
+ Dolphin devices have CS8409 HDA Bridge connected to two CS42L42 codecs.
Codec 1 supports Headphone and Headset Mic. Codec 2 supports Line Out.
-
- [Fix]
-
+
+ [Fix]
+
In order to support multiple CS42L42 codecs connected to a CS8409 HDA
Bridge, a changeset of 27 patches is proposed to
https://patchwork.kernel.org/project/alsa-devel/cover/[email protected]/
(now in linux-next), as well as two additional patches in
https://lore.kernel.org/lkml/[email protected]/
- that fixes pop sounds at insertion of earphone jack and reboot. The
+ that fixes pop sounds at insertion of earphone jack and reboot. The
second patch of the latter changeset is on hold because of another fix
- series that deprecates the reboot_notify callback of HD-audio by
+ series that deprecates the reboot_notify callback of HD-audio by
forcibly doing runtime-suspend at shutdown.
-
+
A Ubuntu sauced patch is also added to enable the now stand alone
- module snd-hda-codec-cs8409.
-
+ module snd-hda-codec-cs8409.
+
[Test Case]
-
+
Test on oem dolphin platform, as well as previous cs8409 platforms with
one single codec.
-
+
[Where problems could occur]
+
+ While this is the first platform we have multiple codecs connected to a
+ CS8409 HDA bridge, we may still have further stability or acoustic
+ quality issues as we had for previous cirrus platforms.
+
[Other Info]
-
+
This also fixes default sample rate problem that was previously fixed by
a oem-only package oem-fix-audio-cirrus-default-sample-rate.
========== original bug report ==========
Dolphin devices have CS8409 HDA Bridge connected to two CS42L42 codecs.
Codec 1 supports Headphone and Headset Mic.
Codec 2 supports Line Out.
Features:
- Front and Read Jacks appear as separate jacks; Removal or connection
of on jack should not affect the connection of the other.
- Front Jack only shows up on jack detection.
- Rear Jack is Phantom Jack.
- Separate Volume Controls for each Jack
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1939541
Title:
ALSA: hda/cs8409: Add support for dolphin
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