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 --- sound/soc/generic/audio-graph-card.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 546f6fd..7eb0272 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -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);