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no-senders; approved; loop; banned-address; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: alsa-project/alsa-ucm-conf pull request #872 was opened from zoan37: Adds a UCM profile for MT8189 (Kompanio 540) Chromebooks with RT1019P speaker amps and an RT5682S headset codec (card `mt8189_1019_rt5682s`, the "skywalker" family; tested on quigon, the Lenovo IdeaPad Slim 3 Chromebook). - Speaker, headphones, internal DMIC and headset mic. - All DPCM front ends are routed in the BootSequence: PipeWire's ACP opens every PCM while it probes the profile, and these front ends refuse hw_params until they're routed to a back end (routing them in the devices' EnableSequence made ACP drop the whole profile). - HDMI (`hw:CardId,6`, through an HDMI bridge on PCM 0) and DisplayPort over USB-C (`hw:CardId,5`, via the `TDM Playback Route` demux) are only added when the machine driver created their jacks, the same pattern as the recent mt8391-evk DisplayPort change. Tested with linux-next plus the posted MT8189 series (the board DTS isn't upstream yet): speaker, headphones, both mics, HDMI and USB-C DisplayPort audio, starting from cleared mixer routes and across reboots. `alsa-info.sh` output for the UCM validator: https://gist.github.com/zoan37/b611da4f1e569613f176c33edbe34a01 The profile was written with help from an AI assistant (Claude); I tested it on the hardware and reviewed it. Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/872 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/872.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf