AMD ACP7.D/7.E/7.F Driver Added In Linux 7.2: "Substantial Design Changes" For AMD Audio
It looks like AMD's next-gen SoCs not only will be exciting on the CPU side with the much anticipated Zen 6 cores but the AMD Audio Co-Processor "ACP" IP looks to be going through some significant updates.
Merged as part of the sound subsystem changes for the Linux 7.2 kernel is AMD ACP7.D/7.E/7.F driver support for that updated audio co-processor IP block. While not outlining what AMD products this AMD ACP7.D/7.E/7.F tech will appear in or any other product details, the patches do make known that there are some big changes compared to existing generation AMD audio co-processors. The patch cover letter noted:
That ACP7.D / 7.E / 7.F bring-up in initial form is around 3k lines of code but as noted more bring-up work is still to come. Given the timing of this ACP7.x audio work, this is more than likely for forthcoming Zen 6 SoCs/APU products.
The sound pull for Linux 7.2 also includes various fixes, improving SoundWire enumeration, and enabling sound support on the Everest Semi ES9356 (SDCA), Mediatek MT2701 (on-chip HDMI) and MT8196 SoCs, Renesas RZ/G3E, SpacemiT K3, and TI TAC5xx2/TAS67524. Of that hardware, nice to see Linux 7.2 having audio support now for the SpacemiT K3 RISC-V RVA23 SoC.
There are also a number of device-specific quirks added, improvements to Qualcomm USB audio offloading, and adding support in the Oxygen driver for the HT-Omega eClaro. The HT-Omega eClaro is a decade old PCIe sound card finally seeing mainline Linux kernel support.
All of these sound changes have been merged for the in-development Linux 7.2 kernel that will debut as stable later this summer and be found in the likes of Ubuntu 26.10.
Merged as part of the sound subsystem changes for the Linux 7.2 kernel is AMD ACP7.D/7.E/7.F driver support for that updated audio co-processor IP block. While not outlining what AMD products this AMD ACP7.D/7.E/7.F tech will appear in or any other product details, the patches do make known that there are some big changes compared to existing generation AMD audio co-processors. The patch cover letter noted:
"This series adds initial AMD ACP 7.x support for ACP7.D / 7.E / 7.F platforms.
Compared to earlier ACP generations, ACP7.x includes substantial design changes, including an updated register set/layout. For that reason, the ACP7.x implementation is placed under a separate sound/soc/amd/acp7x/ directory instead of extending older-generation code paths, keeping ACP7.x-specific logic and register definitions cleanly separated and easier to maintain.
This initial version is intentionally focused on the core PCI driver bring-up: register definitions, probe/remove, basic helper wiring, and system sleep + runtime PM integration. A follow-up series will add support for additional Audio I/O blocks, including SoundWire and the ACP PDM controller."
That ACP7.D / 7.E / 7.F bring-up in initial form is around 3k lines of code but as noted more bring-up work is still to come. Given the timing of this ACP7.x audio work, this is more than likely for forthcoming Zen 6 SoCs/APU products.
The sound pull for Linux 7.2 also includes various fixes, improving SoundWire enumeration, and enabling sound support on the Everest Semi ES9356 (SDCA), Mediatek MT2701 (on-chip HDMI) and MT8196 SoCs, Renesas RZ/G3E, SpacemiT K3, and TI TAC5xx2/TAS67524. Of that hardware, nice to see Linux 7.2 having audio support now for the SpacemiT K3 RISC-V RVA23 SoC.
There are also a number of device-specific quirks added, improvements to Qualcomm USB audio offloading, and adding support in the Oxygen driver for the HT-Omega eClaro. The HT-Omega eClaro is a decade old PCIe sound card finally seeing mainline Linux kernel support.
All of these sound changes have been merged for the in-development Linux 7.2 kernel that will debut as stable later this summer and be found in the likes of Ubuntu 26.10.