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ASoC: soc-core: use snd_soc_dai_link_component for platform 

Current struct snd_soc_dai_link is supporting multicodec,
and it is supporting legacy style of
	codec_name
	codec_of_node
	code_dai_name
This is handled as single entry of multicodec.

We don't have multicpu support yet, but in the future we will.
In such case, we can use snd_soc_dai_link_component for both
cpu/codec. Then the code will be more simple and readble.

As next step, we want to use it for platform, too.
This patch adds snd_soc_dai_link_component style for platform.
We might have multiplatform support in the future, but we
don't know yet. To avoid un-known issue / complex code,
this patch supports just single-platform as 1st step.

If we could use snd_soc_dai_link_component for all CPU/Codec/Platform,
we will switch to new style, and remove legacy code.
This is prepare for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2018-08-31 03:10:08 +00:00 committed by Mark Brown
parent 2967e5ea19
commit daecf46ee0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 43 additions and 7 deletions
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2
include/sound/soc.h
View File

@ -915,6 +915,8 @@ struct snd_soc_dai_link {
*/
const char *platform_name;
struct device_node *platform_of_node;
struct snd_soc_dai_link_component *platform;
int id; /* optional ID for machine driver link identification */
const struct snd_soc_pcm_stream *params;

48
sound/soc/soc-core.c
View File

@ -892,8 +892,8 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
rtd->codec_dai = codec_dais[0];
/* 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)
platform_name = dai_link->platform->name;
if (!platform_name && !dai_link->platform->of_node)
platform_name = "snd-soc-dummy";
/* find one from the set of registered platforms */
@ -902,8 +902,8 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
if (!platform_of_node && component->dev->parent->of_node)
platform_of_node = component->dev->parent->of_node;
if (dai_link->platform_of_node) {
if (platform_of_node != dai_link->platform_of_node)
if (dai_link->platform->of_node) {
if (platform_of_node != dai_link->platform->of_node)
continue;
} else {
if (strcmp(component->name, platform_name))
@ -1015,6 +1015,31 @@ static void soc_remove_dai_links(struct snd_soc_card *card)
}
}
static int snd_soc_init_platform(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_link)
{
/*
* FIXME
*
* this function should be removed in the future
*/
/* convert Legacy platform link */
if (dai_link->platform)
return 0;
dai_link->platform = devm_kzalloc(card->dev,
sizeof(struct snd_soc_dai_link_component),
GFP_KERNEL);
if (!dai_link->platform)
return -ENOMEM;
dai_link->platform->name = dai_link->platform_name;
dai_link->platform->of_node = dai_link->platform_of_node;
dai_link->platform->dai_name = NULL;
return 0;
}
static int snd_soc_init_multicodec(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_link)
{
@ -1047,6 +1072,12 @@ static int soc_init_dai_link(struct snd_soc_card *card,
{
int i, ret;
ret = snd_soc_init_platform(card, link);
if (ret) {
dev_err(card->dev, "ASoC: failed to init multiplatform\n");
return ret;
}
ret = snd_soc_init_multicodec(card, link);
if (ret) {
dev_err(card->dev, "ASoC: failed to init multicodec\n");
@ -1076,13 +1107,12 @@ static int soc_init_dai_link(struct snd_soc_card *card,
* Platform may be specified by either name or OF node, but
* can be left unspecified, and a dummy platform will be used.
*/
if (link->platform_name && link->platform_of_node) {
if (link->platform->name && link->platform->of_node) {
dev_err(card->dev,
"ASoC: Both platform name/of_node are set for %s\n",
link->name);
return -EINVAL;
}
/*
* CPU device may be specified by either name or OF node, but
* can be left unspecified, and will be matched based on DAI
@ -1917,7 +1947,11 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
card->dai_link[i].name);
/* override platform component */
dai_link->platform_name = component->name;
if (snd_soc_init_platform(card, dai_link) < 0) {
dev_err(card->dev, "init platform error");
continue;
}
dai_link->platform->name = component->name;
/* convert non BE into BE */
dai_link->no_pcm = 1;