Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:
"Empty" dlc might be used on Platform, but "dummy" dlc is not needed
for it. [PATCH 1/5][PATCH 2/5] removes "dummy" dlc from Platform.
Now ASoC have common dummy dlc (= snd_soc_dummy_dlc).
[PATCH 3/5][PATCH 4/5] will use it instead of original dummy dlc.
Many drivers are using below macro
SND_SOC_DAILINK_DEFS(link,
DAILINK_COMP_ARRAY(COMP_CPU(...)),
(X) DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
But (X) part will create original dummy dlc.
[PATCH 5/5] will try not to create original dummy dlc, and replace
it to common dummy dlc.