ASoC: soc-core.c: add snd_soc_copy_dai_args()

To use multi Component support, we need to check dai_args whether
Card could get DAI from args (CPU/Codec needs set dai_args on DAI driver).
If it could, we need to allocate dai_args for dlc.
This patch adds snd_soc_copy_dai_args() for it.

This is helper function for multi Component support.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bkgko94e.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 94fca10..fa2337a 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1338,6 +1338,8 @@ void snd_soc_remove_pcm_runtime(struct snd_soc_card *card,
 
 void snd_soc_dlc_use_cpu_as_platform(struct snd_soc_dai_link_component *platforms,
                                     struct snd_soc_dai_link_component *cpus);
+struct of_phandle_args *snd_soc_copy_dai_args(struct device *dev,
+                                             struct of_phandle_args *args);
 struct snd_soc_dai *snd_soc_get_dai_via_args(struct of_phandle_args *dai_args);
 struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
                                         struct snd_soc_dai_driver *dai_drv,

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9fd7e63..a5b96c1 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -809,6 +809,19 @@ static struct device_node
        return of_node;
 }
 
+struct of_phandle_args *snd_soc_copy_dai_args(struct device *dev, struct of_phandle_args *args)
+{
+       struct of_phandle_args *ret = devm_kzalloc(dev, sizeof(*ret), GFP_KERNEL);
+
+       if (!ret)
+               return NULL;
+
+       *ret = *args;
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_copy_dai_args);
+
 static int snd_soc_is_matching_component(
        const struct snd_soc_dai_link_component *dlc,
        struct snd_soc_component *component)