ASoC: soc-dapm.c: replace snd_soc_dapm_wcache to snd_soc_dapm_widget

Current ASoC has snd_soc_dapm_wcache, but its member is only
snd_soc_dapm_widget.

	struct snd_soc_dapm_wcache {
		struct snd_soc_dapm_widget *widget;
	};

It is no meaning for now, and makes code unreadable.
This patch replace snd_soc_dapm_wcache to snd_soc_dapm_widget directly.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/871qr6qayt.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-dapm.h

@@ -450,7 +450,6 @@ int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
 			     const struct snd_soc_dapm_route *route, int num);
 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
-void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm);
 
 /* dapm events */
 void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
@@ -680,10 +679,6 @@ struct snd_soc_dapm_update {
 	bool has_second_set;
 };
 
-struct snd_soc_dapm_wcache {
-	struct snd_soc_dapm_widget *widget;
-};
-
 /* DAPM context */
 struct snd_soc_dapm_context {
 	enum snd_soc_bias_level bias_level;
@@ -699,8 +694,8 @@ struct snd_soc_dapm_context {
 	enum snd_soc_bias_level target_bias_level;
 	struct list_head list;
 
-	struct snd_soc_dapm_wcache path_sink_cache;
-	struct snd_soc_dapm_wcache path_source_cache;
+	struct snd_soc_dapm_widget *wcache_sink;
+	struct snd_soc_dapm_widget *wcache_source;
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs_dapm;

sound/soc/soc-dapm.c

@@ -652,10 +652,8 @@ static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
 }
 
 static struct snd_soc_dapm_widget *
-dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name)
+dapm_wcache_lookup(struct snd_soc_dapm_widget *w, const char *name)
 {
-	struct snd_soc_dapm_widget *w = wcache->widget;
-
 	if (w) {
 		struct list_head *wlist = &w->dapm->card->widgets;
 		const int depth = 2;
@@ -673,12 +671,6 @@ dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name)
 	return NULL;
 }
 
-static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache,
-				      struct snd_soc_dapm_widget *w)
-{
-	wcache->widget = w;
-}
-
 /**
  * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level
  * @dapm: The DAPM context for which to set the level
@@ -2516,12 +2508,6 @@ void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w)
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_free_widget);
 
-void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm)
-{
-	dapm->path_sink_cache.widget = NULL;
-	dapm->path_source_cache.widget = NULL;
-}
-
 /* free all dapm widgets and resources */
 static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
 {
@@ -2532,7 +2518,9 @@ static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
 			continue;
 		snd_soc_dapm_free_widget(w);
 	}
-	snd_soc_dapm_reset_cache(dapm);
+
+	dapm->wcache_sink	= NULL;
+	dapm->wcache_source	= NULL;
 }
 
 static struct snd_soc_dapm_widget *dapm_find_widget(
@@ -2961,8 +2949,8 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
 		source = route->source;
 	}
 
-	wsource = dapm_wcache_lookup(&dapm->path_source_cache, source);
-	wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink);
+	wsource	= dapm_wcache_lookup(dapm->wcache_source, source);
+	wsink	= dapm_wcache_lookup(dapm->wcache_sink,   sink);
 
 	if (wsink && wsource)
 		goto skip_search;
@@ -3018,8 +3006,9 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
 	}
 
 skip_search:
-	dapm_wcache_update(&dapm->path_sink_cache, wsink);
-	dapm_wcache_update(&dapm->path_source_cache, wsource);
+	/* update cache */
+	dapm->wcache_sink	= wsink;
+	dapm->wcache_source	= wsource;
 
 	ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control,
 		route->connected);