Unverified Commit 30b428d0 authored by Sameer Pujar's avatar Sameer Pujar Committed by Mark Brown
Browse files

ASoC: audio-graph: Fixup CPU endpoint hw_params in a BE<->BE link 



When multiple components are connected back to back in an audio path,
hw_param fixup may be required for CPU or Codec endpoint of BE<->BE
DAI links. Currently fixup support is available for Codec and this
commit adds similar feature for CPU endpoint of a BE<->BE link.

For example a resampler component can be plugged into an audio path.
  [ FE -> BE1 -> ... -> resampler -> ... BEn ]

The resampler DAI links can be:
  BEx (CPU)              -> resampler input (Codec)
  resampler output (CPU) -> BEy (Codec)

Thus input and output sample rate parameters for resampler can be
fixed up as per the resample requirement.

Signed-off-by: default avatarSameer Pujar <spujar@nvidia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1631551342-25469-4-git-send-email-spujar@nvidia.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7a226f2e

sound/soc/generic/audio-graph-card.c

+3 −1
Original line number Diff line number Diff line
@@ -310,8 +310,10 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv, 
		 * For example: FE <-> BE1 <-> BE2 <-> ... <-> BEn where

		 * there are 'n' BE components in the path.

		 */

		if (card->component_chaining && !soc_component_is_pcm(cpus))

		if (card->component_chaining && !soc_component_is_pcm(cpus)) {

			dai_link->no_pcm = 1;

			dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;

		}



		asoc_simple_canonicalize_cpu(cpus, is_single_links);

		asoc_simple_canonicalize_platform(platforms, cpus);