On Tue, 19 Nov 2019 09:47:06 +0100, Nikhil Mahale wrote:
Today, DisplayPort multi-stream transport (DP-MST) audio is not supported on codec drivers which don't use the audio component (acomp) binding.
The commit ade49db337a9 (ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI) added the DRM audio component binding for the NVIDIA codec drivers, but the traditional HD-audio unsolicited event code path is still in use by the proprietary NVIDIA graphics driver.
This patch set adds DP-MST audio support for non-acomp codec drivers which use the traditional HD-audio unsolicited event code path. This patch set adds DP-MST support for NVIDIA codecs.
The patch set has been tested for HDMI/DP-SST/DP-MST(4 dp-mst audio streams) configurations on NVIDIA Kepler and Maxwell GPUs, using both the nouveau driver and the proprietary NVIDIA graphics driver.
Nikhil Mahale (4): ALSA: hda - Rename snd_hda_pin_sense to snd_hda_jack_pin_sense ALSA: hda - Add DP-MST jack support ALSA: hda - Add DP-MST support for non-acomp codecs ALSA: hda - Add DP-MST support for NVIDIA codecs
OK, you've done in time for 5.5 :) Now applied all four patches.
Kai, please let me know if the intel CI catches any issue with these changes.
Thanks!
Takashi