Verified with alsa-ucm-conf 1.2.10-1ubuntu5.2/1.2.10-1ubuntu6.1 on TRBL-
DVT2-C2_202407-34215 which use rt1318+rt714 codec (where regression
happens)

`aplay` shows w/o problem
**** List of PLAYBACK Hardware Devices ****
card 0: sofsoundwire [sof-soundwire], device 2: Speaker (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 5: HDMI1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 6: HDMI2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 7: HDMI3 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0


`alsaucm -c hw:0 dump text` shows w/o problem
Verb.HiFi {
        Comment "Play HiFi quality Music"
        Device.Speaker {
                Comment Speaker
                Values {
                        CaptureCTL "_ucm0001.hw:sofsoundwire"
                        PlaybackCTL "_ucm0001.hw:sofsoundwire"
                        PlaybackPCM "_ucm0001.hw:sofsoundwire,2"
                        PlaybackPriority 100
                        TQ HiFi
                }
        }
        Device.Mic {
                Comment "SoundWire microphones"
                Values {
                        CaptureCTL "_ucm0001.hw:sofsoundwire"
                        CaptureMicInfoFile 
"/var/lib/alsa/card0.conf.d/dmics-nhlt.json"
                        CaptureMixerElem "rt714 FU02"
                        CapturePCM "_ucm0001.hw:sofsoundwire,4"
                        CapturePriority 100
                        CaptureSwitch "rt714 FU02 Capture Switch"
                        CaptureVolume "rt714 FU02 Capture Volume"
                        PlaybackCTL "_ucm0001.hw:sofsoundwire"
                        TQ HiFi
                }
        }

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to alsa-ucm-conf in Ubuntu.
https://bugs.launchpad.net/bugs/2069760

Title:
  Soundwire support for CS42L43 and CS35L56 on Intel MTL

Status in OEM Priority Project:
  New
Status in alsa-ucm-conf package in Ubuntu:
  Fix Released
Status in firmware-sof package in Ubuntu:
  Fix Released
Status in alsa-ucm-conf source package in Noble:
  Fix Committed
Status in firmware-sof source package in Noble:
  Fix Committed
Status in alsa-ucm-conf source package in Oracular:
  Fix Committed
Status in firmware-sof source package in Oracular:
  Fix Released

Bug description:
  [SRU Justifications]

  ========== firmware-sof ==========
  [Impact]

  Audio doesn't work on Dell new XPS laptops on Intel MTL platforms.

  [Fix]

  Kernel driver, ALSA ucm, and firmware fixes are required. For
  firmware-sof, it's the upstream commit 7d2c7f5ad44d ("Add sof-v2.9 for
  Intel hardware").

  [Test Case]
  1. Install linux-firmware version >= 20240318.git3b128b60-0ubuntu2.1
  2. Install new noble/oracular -proposed alsa UCM conf package
  3. Install 6.10-oem kernel
  4. Go to audio setting to make sure the audio input/output device are not 
dummy

  [Where problems could occur]
  It's simply an additional tplg file which only new kernel driver knows to how 
to load.

  ========== alsa-ucm-conf ==========
  [Impact]

  Audio doesn't work on Dell new XPS laptops on Intel MTL platforms.

  [Fix]

  Kernel driver, ALSA ucm, and firmware fixes are required. For alsa-ucm-conf, 
it requires the following upstream commit
  1. c0a4df603786 ("sof-soundwire: Use one file for speaker codec")
  2. 8e39917518b6 (sof-soundwire: Add basic support for basic cs35l56)
  3. e87dde51d689 (sof-soundwire: Add basic support for cs42l43)

  [Test Case]
  1. Install linux-firmware version >= 20240318.git3b128b60-0ubuntu2.1
  2. Install 6.10-oem kernel
  3. Install new noble/oracular -proposed firmware-sof package
  4. Go to audio setting to make sure the audio input/output device are not 
dummy

  [Where problems could occur]
  The new alsa UCM file only take effect when new cs35l56 driver and 
firmware-sof are loaded. The impact are restricted on cs35l56 only.

  [Other Info]
  Need commits on 1.2.11 and 1.2.12 to fix the regression on rt13xx on old 
platforms.

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