These patches were originally part of a larger set of patches to enabled runtime pm support on the GPU side[1]. However, the patches are useful on their own there are really no dependencies, other than the fact that you need both for runtime pm to kick in on the GPU side. The GPU side will be landing for 5.6; I'd like to land the audio side as well.
Thanks,
Alex
[1]: https://patchwork.freedesktop.org/series/67885/
Alex Deucher (4): ALSA: hda/hdmi - fix vgaswitcheroo detection for AMD ALSA: hda/hdmi - Add new pci ids for AMD GPU display audio ALSA: hda/hdmi - enable runtime pm for newer AMD display audio ALSA: hda/hdmi - enable automatic runtime pm for AMD HDMI codecs by default
sound/pci/hda/hda_intel.c | 80 +++++++++++++++++++++++++++++++++++--- sound/pci/hda/patch_hdmi.c | 1 + 2 files changed, 76 insertions(+), 5 deletions(-)