ASoC: simple-card-utils: share asoc_simple_shutdown()

The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_shutdown() between in these 2 drivers.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/simple_card_utils.h

@@ -84,8 +84,8 @@ int asoc_simple_card_parse_clk(struct device *dev,
 			       struct asoc_simple_dai *simple_dai,
 			       const char *dai_name,
 			       struct snd_soc_dai_link_component *dlc);
-void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai);
 int asoc_simple_startup(struct snd_pcm_substream *substream);
+void asoc_simple_shutdown(struct snd_pcm_substream *substream);
 
 #define asoc_simple_card_parse_cpu(node, dai_link,				\
 				   list_name, cells_name, is_single_link)	\

sound/soc/generic/audio-graph-card.c

@@ -56,17 +56,6 @@ static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
 			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 };
 
-static void graph_shutdown(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
-
-	asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
-	asoc_simple_card_clk_disable(dai_props->codec_dai);
-}
-
 static int graph_hw_params(struct snd_pcm_substream *substream,
 			   struct snd_pcm_hw_params *params)
 {
@@ -100,7 +89,7 @@ static int graph_hw_params(struct snd_pcm_substream *substream,
 
 static const struct snd_soc_ops graph_ops = {
 	.startup	= asoc_simple_startup,
-	.shutdown	= graph_shutdown,
+	.shutdown	= asoc_simple_shutdown,
 	.hw_params	= graph_hw_params,
 };
 

sound/soc/generic/simple-card-utils.c

@@ -151,12 +151,11 @@ static int asoc_simple_card_clk_enable(struct asoc_simple_dai *dai)
 	return 0;
 }
 
-void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai)
+static void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai)
 {
 	if (dai)
 		clk_disable_unprepare(dai->clk);
 }
-EXPORT_SYMBOL_GPL(asoc_simple_card_clk_disable);
 
 int asoc_simple_card_parse_clk(struct device *dev,
 			       struct device_node *node,
@@ -224,6 +223,19 @@ int asoc_simple_startup(struct snd_pcm_substream *substream)
 }
 EXPORT_SYMBOL_GPL(asoc_simple_startup);
 
+void asoc_simple_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_clk_disable(dai_props->cpu_dai);
+
+	asoc_simple_card_clk_disable(dai_props->codec_dai);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
+
 int asoc_simple_card_parse_dai(struct device_node *node,
 				    struct snd_soc_dai_link_component *dlc,
 				    struct device_node **dai_of_node,

sound/soc/generic/simple-card.c

@@ -26,18 +26,6 @@ struct link_info {
 #define CELL	"#sound-dai-cells"
 #define PREFIX	"simple-audio-card,"
 
-static void simple_shutdown(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
-		simple_priv_to_props(priv, rtd->num);
-
-	asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
-	asoc_simple_card_clk_disable(dai_props->codec_dai);
-}
-
 static int simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
 			       unsigned long rate)
 {
@@ -96,7 +84,7 @@ static int simple_hw_params(struct snd_pcm_substream *substream,
 
 static const struct snd_soc_ops simple_ops = {
 	.startup	= asoc_simple_startup,
-	.shutdown	= simple_shutdown,
+	.shutdown	= asoc_simple_shutdown,
 	.hw_params	= simple_hw_params,
 };