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

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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: Sameer 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: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sameer Pujar 2021-09-13 22:12:11 +05:30 committed by Mark Brown
parent 7a226f2eab
commit 30b428d02c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 1 deletions
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4
sound/soc/generic/audio-graph-card.c
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@ -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);