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

[Sameer Pujar]

>> 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.