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| author | Nikhil Mahale <nmahale@nvidia.com> | 2019-11-19 14:17:10 +0530 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-11-19 11:51:12 +0100 |
| commit | 5398e94fb753d022301825ebfa5f7cf8a660d8eb (patch) | |
| tree | 729eac41f13aa8eed93cca1b1bfdc633e66eb543 /drivers | |
| parent | 9c32fea836928d7a25a83b337f268e533cfc5c3d (diff) | |
ALSA: hda - Add DP-MST support for NVIDIA codecs
This patch adds DP-MST support for GK104+ NVIDIA codecs.
GK104+ NVIDIA codecs support DP-MST audio. These codecs have 4
output converters and 4 pin widgets, with 4 device entries per pin
widget for a total of 16 device entries.
This patch moves the existing patch_nvhdmi() definition to
patch_nvhdmi_legacy(), used by pre-GK104 NVIDIA codecs. Redefine
patch_nvhdmi() to enable DP-MST support by setting codec->dp_mst and
spec->dyn_pcm_assign.
Introduce fresh logic for dynamic pcm assignment, making
sure that new pcm assignments are compatible with the legacy static
per_pin-pmc assignment that existed in the days before DP-MST.
Signed-off-by: Nikhil Mahale <nmahale@nvidia.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Link: https://lore.kernel.org/r/20191119084710.29267-5-nmahale@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions