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ASoC: core: Add helpers for codec and codec_dai search 

Add dedicated helpers for codec and codec_dai search in preparation
for DAI-multicodec. It will help reducing the extra indentation
that will be introduced by the iteration over multiple codecs.

Previous implementation unnecessarily kept searching for a matching
codec in the remaining register codecs even if it was already found.

Fix that by returning in case of matching.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
[fparent@baylibre.com: Adapt to 3.14+]
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Misael Lopez Cruz 2014-03-21 16:27:25 +01:00 committed by Mark Brown
parent c9eaa447e7
commit 12023a9af8
1 changed files with 47 additions and 32 deletions
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79
sound/soc/soc-core.c
View File

@ -854,14 +854,47 @@ EXPORT_SYMBOL_GPL(snd_soc_resume);
static const struct snd_soc_dai_ops null_dai_ops = {
};
static struct snd_soc_codec *soc_find_codec(const struct device_node *codec_of_node,
const char *codec_name)
{
struct snd_soc_codec *codec;
list_for_each_entry(codec, &codec_list, list) {
if (codec_of_node) {
if (codec->dev->of_node != codec_of_node)
continue;
} else {
if (strcmp(codec->name, codec_name))
continue;
}
return codec;
}
return NULL;
}
static struct snd_soc_dai *soc_find_codec_dai(struct snd_soc_codec *codec,
const char *codec_dai_name)
{
struct snd_soc_dai *codec_dai;
list_for_each_entry(codec_dai, &codec->component.dai_list, list) {
if (!strcmp(codec_dai->name, codec_dai_name)) {
return codec_dai;
}
}
return NULL;
}
static int soc_bind_dai_link(struct snd_soc_card *card, int num)
{
struct snd_soc_dai_link *dai_link = &card->dai_link[num];
struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
struct snd_soc_component *component;
struct snd_soc_codec *codec;
struct snd_soc_platform *platform;
struct snd_soc_dai *codec_dai, *cpu_dai;
struct snd_soc_dai *cpu_dai;
const char *platform_name;
dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
@ -889,42 +922,24 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
return -EPROBE_DEFER;
}
/* Find CODEC from registered CODECs */
list_for_each_entry(codec, &codec_list, list) {
if (dai_link->codec_of_node) {
if (codec->dev->of_node != dai_link->codec_of_node)
continue;
} else {
if (strcmp(codec->name, dai_link->codec_name))
continue;
}
rtd->codec = codec;
/*
* CODEC found, so find CODEC DAI from registered DAIs from
* this CODEC
*/
list_for_each_entry(codec_dai, &codec->component.dai_list, list) {
if (!strcmp(codec_dai->name, dai_link->codec_dai_name)) {
rtd->codec_dai = codec_dai;
break;
}
}
if (!rtd->codec_dai) {
dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
dai_link->codec_dai_name);
return -EPROBE_DEFER;
}
}
/* Find CODEC from registered list */
rtd->codec = soc_find_codec(dai_link->codec_of_node,
dai_link->codec_name);
if (!rtd->codec) {
dev_err(card->dev, "ASoC: CODEC %s not registered\n",
dai_link->codec_name);
return -EPROBE_DEFER;
}
/* Find CODEC DAI from registered list */
rtd->codec_dai = soc_find_codec_dai(rtd->codec,
dai_link->codec_dai_name);
if (!rtd->codec_dai) {
dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
dai_link->codec_dai_name);
return -EPROBE_DEFER;
}
/* if there's no platform we match on the empty platform */
platform_name = dai_link->platform_name;
if (!platform_name && !dai_link->platform_of_node)