Re: [PATCH v3 01/13] ASoC: soc-core: Fix component name_prefix parsing

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The "prefix" can be defined in DAI link node or it can be specified as
part of the component node itself. Currently "sound-name-prefix" defined
in a component is not taking effect. Actually the property is not getting
parsed. It can be fixed by parsing "sound-name-prefix" property whenever
"prefix" is missing in DAI link Codec node.
[...]
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1124,7 +1124,8 @@ static void soc_set_name_prefix(struct snd_soc_card *card,
       for (i = 0; i < card->num_configs; i++) {
               struct snd_soc_codec_conf *map = &card->codec_conf[i];

-             if (snd_soc_is_matching_component(&map->dlc, component)) {
+             if (snd_soc_is_matching_component(&map->dlc, component) &&
+                 map->name_prefix) {
                       component->name_prefix = map->name_prefix;
                       return;
               }
Hi,

It is not obvious how the patch fixes the problem described. I guess now
map->name_prefix is NULL on some level and overrides prefix found earlier?

Best Regards,
Michał Mirosław

If map->name_prefix is NULL (which is the prefix defined for Codec DAI component in a DAI link), then go ahead and check if "sound-name-prefix" is provided under component device node itself.




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