From 02298cc296e640c2ebc49407a76bb02c0df488f4 Mon Sep 17 00:00:00 2001 From: Harendra Gautam Date: Tue, 13 Oct 2026 11:21:28 +0530 Subject: [PATCH] ASoC: soc-core: Add snd_soc_of_xlate_dai_name() generic helper 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 Link: https://patch.msgid.link/20261013-b4-qaif-shikra-audio-v9-5-f3022e28f2fd@oss.qualcomm.com Signed-off-by: Mark Brown --- include/sound/soc.h | 3 +++ sound/soc/soc-core.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/include/sound/soc.h b/include/sound/soc.h index 08fdee15dba7..19d780bb5c0b 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -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, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 69181cc0258b..8e35d6816189 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -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) {