ASoC: soc-component: add snd_soc_component_is_suspended()

Current ALSA SoC is directly using component->xxx,
But, it is not good for encapsulation.
This patch adds new snd_soc_component_is_suspended() and use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/874l395rlx.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-component.h

@@ -355,5 +355,6 @@ int snd_soc_component_trigger(struct snd_soc_component *component,
 			      int cmd);
 void snd_soc_component_suspend(struct snd_soc_component *component);
 void snd_soc_component_resume(struct snd_soc_component *component);
+int snd_soc_component_is_suspended(struct snd_soc_component *component);
 
 #endif /* __SOC_COMPONENT_H */

sound/soc/soc-component.c

@@ -361,3 +361,8 @@ void snd_soc_component_resume(struct snd_soc_component *component)
 		component->driver->resume(component);
 	component->suspended = 0;
 }
+
+int snd_soc_component_is_suspended(struct snd_soc_component *component)
+{
+	return component->suspended;
+}

sound/soc/soc-core.c

@@ -503,7 +503,7 @@ int snd_soc_suspend(struct device *dev)
 		 * If there are paths active then the COMPONENT will be held
 		 * with bias _ON and should not be suspended.
 		 */
-		if (!component->suspended) {
+		if (!snd_soc_component_is_suspended(component)) {
 			switch (snd_soc_dapm_get_bias_level(dapm)) {
 			case SND_SOC_BIAS_STANDBY:
 				/*
@@ -592,9 +592,8 @@ static void soc_resume_deferred(struct work_struct *work)
 	}
 
 	for_each_card_components(card, component) {
-		if (component->suspended) {
+		if (snd_soc_component_is_suspended(component))
 			snd_soc_component_resume(component);
-		}
 	}
 
 	for_each_card_rtds(card, rtd) {