As part of catering to Google requirements around Google Chromebooks, AMD has been supporting Sound Open Firmware as the Intel-initiated open-source project across their APUs/SoCs. Sent out today was the patch for enabling ACP 7.0 SOF support for their newest SoCs like Strix Point to have Sound Open Firmware support.

The Linux kernel already has sound support on ACP 7.0 while the SOF support has only been up to the ACP 6.3 IP. Now in patch form on the mailing list is an ACP 7.0 SOF sound driver.

This patch series introduces the pci-acp70 driver for supporting Sound Open Firmware on the AMD Audio Co-Processor 7.0 IP. There is also this SOF project pull request as part of bringing up the AMD ACP 7.0 support. That code was merged to the SOF codebase this week ahead of the project's next release.

The initial user of AMD Audio Co-Processor 7.0 IP appears to be the RDNA3.5 graphics with Strix Point / Ryzen AI 300 series. With time more AMD ACP 7.x hardware will come.