ALSA: hda/hdmi: Use only dynamic PCM device allocation
authorJaroslav Kysela <perex@perex.cz>
Thu, 22 Sep 2022 08:40:17 +0000 (10:40 +0200)
committerTakashi Iwai <tiwai@suse.de>
Thu, 22 Sep 2022 11:58:16 +0000 (13:58 +0200)
commitef6f5494faf6a37c74990689a3bb3cee76d2544c
tree5e57ad800ced98694a84eab2673536c82e9429a7
parentaf45a0d32df9c8f5abbbc7401d70ffa296c8cef6
ALSA: hda/hdmi: Use only dynamic PCM device allocation

Per discussion on the alsa-devel mailing list [1], the legacy PIN to PCM
device mapping is obsolete nowadays. The maximum number of the simultaneously
usable PCM devices is equal to the HDMI codec converters.

Remove the extra PCM devices (beyond the detected converters) and force
the use of the dynamic PCM device allocation. The legacy code is removed.

I believe that all HDMI codecs have the jack sensing feature. Move the check
to the codec probe function and print a warning, if a codec without this
feature is detected.

[1] https://lore.kernel.org/alsa-devel/2f37e0b2-1e82-8c0b-2bbd-1e5038d6ecc6@perex.cz/

Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220922084017.25925-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
include/sound/hda_codec.h
sound/pci/hda/patch_hdmi.c
sound/soc/codecs/hda.c
sound/soc/codecs/hdac_hda.c