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-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1891585 Title: alsa/sof: support 1 and 3 dmics Status in HWE Next: Triaged Status in linux package in Ubuntu: Triaged Status in linux-firmware package in Ubuntu: Fix Released Status in linux-oem-5.6 package in Ubuntu: Triaged Status in linux source package in Focal: Fix Committed Status in linux-firmware source package in Focal: Fix Released Status in linux-oem-5.6 source package in Focal: Fix Released Status in linux source package in Groovy: Triaged Status in linux-firmware source package in Groovy: Fix Released Bug description: This is for linux-firmware: [Impact] On a Dell tigerlake laptop, the sof driver fails to detect the dmic, it alwasys report 0 dmics on the machine. So users doesn't have internal mic to use. [Fix] Intel provides 2 new topology files to us, they could support 1 dmic and 3 dmics. [Test Case] Boot the kernel with this patch, and put sof-hda-generic-1ch.tplg in the linux-firmware, the sof driver could detect the dmic and users have a workable internal mic after booting up. [Regression Risk] This is adding 2 new topology files, not changing anything on current sof-firmware, so the regression posibility is very low. This is for linux kernel: [Impact] On a Dell tigerlake laptop, the sof driver fails to detect the dmic, it alwasys report 0 dmics on the machine. So users doesn't have internal mic to use. [Fix] Intel write a patch to fix this issue, if NHLT table returns 1 or 3 dmics, the sof driver will not fail like before, it can support 1 or 3 dmics after applying this patch. [Test Case] Boot the kernel with this patch, and put sof-hda-generic-1ch.tplg in the linux-firmware, the sof driver could detect the dmic and users have a workable internal mic after booting up. [Regression Risk] This patch adds new support for 1 and 3 dmics, it doesn't change anything on existing functions, so the regression posibility is very low. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1891585/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
