On Tue, 08 Dec 2020 19:57:36 +0100, Kai Vehmanen wrote:
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
sound/pci/hda/hda_proc.c | 38 +++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-)
v2 changes:
- add NULL check to conn array allocation
- put a few functions to a single line as they fit within 100 columns
- reformat the first paragraph of commit message
Applied now. Thanks.
Takashi