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authorKai Vehmanen2020-12-08 20:57:36 +0200
committerTakashi Iwai2020-12-08 20:04:33 +0100
commit19bb4f78c91fa46bdf978e18766118498c3d2e63 (patch)
treec691c44a1cbd5ad87157229c855458bf1c9dbfac /net
parent88a06d6fd6b369d88cec46c62db3e2604a2f50d5 (diff)
ALSA: hda/proc - print DP-MST connections
To help in debugging issues with DisplayPort Multi-Stream Transport (aka DP-MST) support, print information of active connections for each device of a display audio pin widget. Example output with the patch with two monitors connected to a DP-MST hub: Devices: 4 Dev 00: PD = 0, ELDV = 0, IA = 0, Connections [ 0x03* 0x05 0x07 0x09 ] Dev 01: PD = 1, ELDV = 1, IA = 0, Connections [ 0x03* 0x05 0x07 0x09 ] *Dev 02: PD = 1, ELDV = 1, IA = 0, Connections [ 0x03 0x05* 0x07 0x09 ] Dev 03: PD = 0, ELDV = 0, IA = 0, Connections [ 0x03* 0x05 0x07 0x09 ] Connection: 4 0x03 0x05* 0x07 0x09 Format of existing "Connection:" entry is left intact to keep compatibility. Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20201208185736.2877541-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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