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ASoC: soc-core: Add snd_soc_of_xlate_dai_name() generic helper

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Some ASoC CPU DAI drivers need to resolve a sound-dai phandle argument
to a DAI name by matching the argument against the component's DAI IDs.
lpass-cpu carries a local implementation of this lookup.

Add snd_soc_of_xlate_dai_name() to soc-core.c as a generic helper
that can be assigned directly to the .of_xlate_dai_name component
driver callback. It iterates the component's DAI list using
for_each_component_dais() and matches by DAI ID.

Signed-off-by: Harendra Gautam <harendra.gautam@oss.qualcomm.com>
Link: https://patch.msgid.link/20261013-b4-qaif-shikra-audio-v9-5-f3022e28f2fd@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Harendra Gautam 2026-10-13 11:21:28 +05:30 committed by Mark Brown
parent dd77abdd34
commit 02298cc296
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2 changed files with 36 additions and 0 deletions
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3
include/sound/soc.h
View File

@ -1323,6 +1323,9 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np,
unsigned int *rx_mask,
unsigned int *slots,
unsigned int *slot_width);
int snd_soc_of_xlate_dai_name(struct snd_soc_component *component,
const struct of_phandle_args *args,
const char **dai_name);
void snd_soc_of_parse_node_prefix(struct device_node *np,
struct snd_soc_codec_conf *codec_conf,
struct device_node *of_node,

33
sound/soc/soc-core.c
View File

@ -2899,6 +2899,39 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np,
}
EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot);
/**
* snd_soc_of_xlate_dai_name - Resolve a sound-dai phandle argument to a
* DAI name by searching the component DAI list.
* @component: ASoC component to search.
* @args: Phandle arguments from the sound-dai property; args[0] is the
* DAI ID.
* @dai_name: Output pointer set to the matched DAI name on success.
*
* Return: 0 on success, -EINVAL if args_count != 1 or no match is found.
*/
int snd_soc_of_xlate_dai_name(struct snd_soc_component *component,
const struct of_phandle_args *args,
const char **dai_name)
{
struct snd_soc_dai *dai;
int id;
if (args->args_count != 1)
return -EINVAL;
id = args->args[0];
for_each_component_dais(component, dai) {
if (dai->driver->id == id) {
*dai_name = snd_soc_dai_name(dai);
return 0;
}
}
return -EINVAL;
}
EXPORT_SYMBOL_GPL(snd_soc_of_xlate_dai_name);
void snd_soc_dlc_use_cpu_as_platform(struct snd_soc_dai_link_component *platforms,
struct snd_soc_dai_link_component *cpus)
{