linux/sound
Kai Vehmanen 19bb4f78c9 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>
2020-12-08 20:04:33 +01:00
..
ac97 ALSA: ac97: (cosmetic) align argument names 2020-09-03 09:27:27 +02:00
aoa ALSA: aoa: i2sbus: use DECLARE_COMPLETION_ONSTACK() macro 2020-09-03 09:26:52 +02:00
arm
atmel ALSA: atmel: ac97: clarify operator precedence 2020-09-03 09:27:34 +02:00
core ALSA: rawmidi: Access runtime->avail always in spinlock 2020-12-06 09:36:10 +01:00
drivers ALSA: aloop: Constify ops structs 2020-11-21 09:30:35 +01:00
firewire Merge branch 'topic/usb-audio-refactoring' into for-next 2020-11-24 09:13:00 +01:00
hda ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() 2020-11-03 14:11:38 +01:00
i2c
isa ALSA: sb: Fix fall-through warnings for Clang 2020-11-21 09:29:26 +01:00
mips hal2: convert to dma_alloc_noncoherent 2020-09-25 06:20:44 +02:00
oss ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
parisc
pci ALSA: hda/proc - print DP-MST connections 2020-12-08 20:04:33 +01:00
pcmcia ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
ppc ALSA: ppc: remove redundant checks in PS3 driver probe 2020-11-28 09:49:19 +01:00
sh
soc Merge branch 'topic/usb-audio-refactoring' into for-next 2020-11-24 09:13:00 +01:00
sparc ALSA: sparc: dbri: fix repeated word 'the' 2020-10-17 09:58:35 +02:00
spi
synth
usb ALSA: usb-audio: Add quirk for Pioneer DJ DDJ-SR2 2020-11-30 09:37:50 +01:00
x86 ALSA: hda: use consistent HDAudio spelling in comments/docs 2020-09-02 19:31:32 +02:00
xen ALSA: xen: Remove superfluous fall through comments 2020-07-09 19:10:37 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c