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 sound/pci/hda/hda_jack.c | 151 ++++++++++++++++++-------- sound/pci/hda/hda_jack.h | 107 ++++++++++++++++-- sound/pci/hda/patch_hdmi.c | 263 +++++++++++++++++++++++++++++++-------------- 3 files changed, 385 insertions(+), 136 deletions(-) -- 2.16.4 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
