We introduced AZX_DCAPS_ALIGN_BUFSIZE to explicity show that the controller needs the alignment, with a slight hope that the buffer size alignment will be disabled as default in future. But the reality tells that most chips need the buffer size alignment, and it'll be likely enabled in future, too.
This patch drops AZX_DCAPS_ALIGN_BUFSIZE to give back one more previous DCAPS bit for future use. At the same time, rename AZX_DCAPS_BUFSIZE with AZX_DCAPS_NO_ALIGN_BUFSIZE for avoiding confusion.
AZX_DCAPS_ALIGN_BUFSIZE are still kept (but commented out) in each DCAPS presets for a purpose as markers.
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
Does it mean that there are still a few hda controllers support arbitrary period size or no hda controller support arbitrary period size ?