[alsa-devel] [PATCH 02/14] ASoC: soc-core: remove snd_soc_disconnect_sync()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

Sound card disconnecting operation was needed when "sound driver" was
unbinded without unbinding "sound card".
In such case, sound driver should be stopped even though it was
playbacking/capturing. Otherwise clock open/close counter mismatch happen.

One headache was that we can't skip unbind in error case because unbind
operation doesn't check return value from each drivers.
snd_soc_disconnect_sync() was added for these purpose, and Renesas
sound card only is used it.

But now, ALSA SoC automatically disconnect sound card when sound driver
was unbinded. Thus, snd_soc_disconnect_sync() is no longer needed.
This patch removes it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/sh/rcar/core.c |  2 --
 sound/soc/soc-core.c     | 12 ------------
 2 files changed, 14 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index fc32cbb..35a6592 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1808,8 +1808,6 @@ static int rsnd_remove(struct platform_device *pdev)
 	};
 	int ret = 0, i;
 
-	snd_soc_disconnect_sync(&pdev->dev);
-
 	pm_runtime_disable(&pdev->dev);
 
 	for_each_rsnd_dai(rdai, priv, i) {
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 19a2a89..1f659e8b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1444,18 +1444,6 @@ static int soc_probe_link_components(struct snd_soc_card *card)
 	return 0;
 }
 
-void snd_soc_disconnect_sync(struct device *dev)
-{
-	struct snd_soc_component *component =
-			snd_soc_lookup_component(dev, NULL);
-
-	if (!component || !component->card)
-		return;
-
-	snd_card_disconnect_sync(component->card->snd_card);
-}
-EXPORT_SYMBOL_GPL(snd_soc_disconnect_sync);
-
 static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais,
 				struct snd_soc_pcm_runtime *rtd)
 {
-- 
2.7.4