tree dba200a727fe35395b91b807a9710d5d2b389d44
parent 52a18c291470e66a27f415b8c99136f25f55092e
author Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 1634014486 +0900
committer Mark Brown <broonie@kernel.org> 1634310638 +0100
gpgsig -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmFpme4ACgkQJNaLcl1U
 h9Cikwf+MCL89hkKMsHCcD1wujUlG5cz1yl1JTy3dz1WX5iTRMpF+r5tyjOSz02m
 xNCGZnI5LvMLyVGM2MDQcbp97g5lcECD5xBcCa05bzVS39Do75TWtcpoVY+VPhIN
 NeMu9pMoDukfGOwCEkxHUdjt61vyqtKGVnzazXlhgKaQMCL5GU+qpk3EfzdNQvMY
 2RbZKJ9XYE2bki8jXbz6BO/7I5m+xlkdmofUEpTSx2rznTvbPA+w5v9xyt1dlBe/
 XGVs9WScCSCLqAHyyMx/8vv5zj8G1viqHv6k3MSNf9Mt6ROIAZ9rsPWL3fvzjIQF
 EJ1ekA0Y+ZUcIW0RcKm1x1DSu19dOA==
 =LHcn
 -----END PGP SIGNATURE-----

ASoC: add Audio Graph Card2 driver

We already have audio-graph-card which is Of-graph base of general
sound card driver.

It is supporting DPCM connection, but was forcibly expanded.
Thus, it is very difficult to add new features on it, for example
Multi CPU/Codec support, Codec2Codec support, etc.

This patch adds more flexible new Audio Graph Card2 driver for it.
audio-graph-card and audio-graph-card2 are similar, but don't have
full compatibility.

Audio Graph Card2 supports very generic connection, but some users
want to have its own settings, for example PLL settings, etc.
For such case, it has customizing support.
In users own driver, it can use Audio Graph Card2 parsing by using
audio_graph2_parse_of(), and doing its own customizing.

Because Audio Graph Card2 is still under experimental stage,
it will indicate such warning when probing, and the DT syntax
might be changed.

Link: https://lore.kernel.org/r/87k0xszlep.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/871r8u4s6q.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/87a6mhwyqn.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/87tuitusy4.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/87a6jn56x0.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/8735p6n8q1.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>