Re: [PATCH] ASoC: Intel: soc-acpi-intel-ptl-match: add cs42l43_cs35l57_l0 support

[Richard Fitzgerald]

On 02/08/2026 4:57 pm, Cristian La Spina wrote:
> The Lenovo Yoga 9 2-in-1 14IPH11 puts its CS42L43 codec and both CS35L57
> amplifiers on SoundWire link 0, as described by its DSDT:

<SNIP>

> so this laptop matches nothing at all
That is expected. PTL and beyond should be using function topologies,
not legacy match tables.

> and no
> card is created: speakers, headphone jack and microphones are all
> silent, leaving HDMI as the only output.

That is not expected. Please provide dmesg output. You can create a bug
report at https://github.com/thesofproject/linux and attach it there.

> Add a match for that layout.
Please don't add match table entries unless there is some reason why
functional topology is impossible on a system. There shouldn't be any
need for match tables for this. It can cause problems because it will
match any system that has that combination of devices even if it also
has other devices, so it can "capture" a system that was previously
working with function topologies.