ASoC Support Still Being Worked On For AMD APUs
Written by Michael Larabel in AMD on 5 December 2015 at 08:07 AM EST. Add A Comment
AMD --
Alex Deucher on Friday sent out the latest patches for implementing ASoC support for AMD APUs. These patches provide i2s audio support via a new driver and integrates with the AMDGPU DRM.

AMD open-source developers have been working on this support for a while and sent out Friday was the fifth revision to these patches.

These latest patches can be found via the DRI devel list. About the new ACP driver, "This adds the ACP (Audio CoProcessor) IP driver and wires it up to the amdgpu driver. The ACP block provides the DMA engine for i2s based ALSA driver. This is required for audio on APUs that utilize an i2s codec...ACP IP block consists of dedicated DMA and I2S blocks. The PCM driver provides the platform DMA component to ALSA core."

Hopefully this i2s audio support for AMD APUs will be prepped in time for the Linux 4.5 kernel.
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