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ASoC: add snd_soc_of_get_dai_name() default of_xlate

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Current snd_soc_of_get_dai_name() needs .of_xlate_dai_name()
callback on each component drivers.
But required behavior on almost all these drivers is
just returns its indexed driver's name.

This patch adds this feature as default behavior.
.of_xlate_dai_name() can overwrite it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Kuninori Morimoto 2013-10-16 22:05:26 -07:00 committed by Mark Brown
parent 7cc302d231
commit 6833c452c2
2 changed files with 27 additions and 5 deletions
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4
include/sound/soc.h
View File

@ -644,10 +644,12 @@ struct snd_soc_component_driver {
struct snd_soc_component {
const char *name;
int id;
int num_dai;
struct device *dev;
struct list_head list;
struct snd_soc_dai_driver *dai_drv;
int num_dai;
const struct snd_soc_component_driver *driver;
};

28
sound/soc/soc-core.c
View File

@ -4023,6 +4023,7 @@ __snd_soc_register_component(struct device *dev,
cmpnt->dev = dev;
cmpnt->driver = cmpnt_drv;
cmpnt->dai_drv = dai_drv;
cmpnt->num_dai = num_dai;
/*
@ -4548,12 +4549,31 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
if (pos->dev->of_node != args.np)
continue;
if (!pos->driver->of_xlate_dai_name) {
ret = -ENOSYS;
break;
if (pos->driver->of_xlate_dai_name) {
ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
} else {
int id = -1;
switch (args.args_count) {
case 0:
id = 0; /* same as dai_drv[0] */
break;
case 1:
id = args.args[0];
break;
default:
/* not supported */
break;
}
if (id < 0 || id >= pos->num_dai) {
ret = -EINVAL;
} else {
*dai_name = pos->dai_drv[id].name;
ret = 0;
}
}
ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
break;
}
mutex_unlock(&client_mutex);