1 files changed, 48 insertions, 14 deletions

diff --git a/sound/soc/uniphier/aio-cpu.c b/sound/soc/uniphier/aio-cpu.c
index ee90e6c3937c..fdaa6522720f 100644
--- a/sound/soc/uniphier/aio-cpu.c
+++ b/sound/soc/uniphier/aio-cpu.c
@@ -420,32 +420,49 @@ int uniphier_aio_dai_remove(struct snd_soc_dai *dai)
 }
 EXPORT_SYMBOL_GPL(uniphier_aio_dai_remove);
 
-int uniphier_aio_dai_suspend(struct snd_soc_dai *dai)
+static void uniphier_aio_dai_suspend(struct snd_soc_dai *dai)
 {
 	struct uniphier_aio *aio = uniphier_priv(dai);
 
-	reset_control_assert(aio->chip->rst);
-	clk_disable_unprepare(aio->chip->clk);
+	if (!dai->active)
+		return;
 
+	aio->chip->num_wup_aios--;
+	if (!aio->chip->num_wup_aios) {
+		reset_control_assert(aio->chip->rst);
+		clk_disable_unprepare(aio->chip->clk);
+	}
+}
+
+static int uniphier_aio_suspend(struct snd_soc_component *component)
+{
+	struct snd_soc_dai *dai;
+
+	for_each_component_dais(component, dai)
+		uniphier_aio_dai_suspend(dai);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(uniphier_aio_dai_suspend);
 
-int uniphier_aio_dai_resume(struct snd_soc_dai *dai)
+static int uniphier_aio_dai_resume(struct snd_soc_dai *dai)
 {
 	struct uniphier_aio *aio = uniphier_priv(dai);
 	int ret, i;
 
+	if (!dai->active)
+		return 0;
+
 	if (!aio->chip->active)
 		return 0;
 
-	ret = clk_prepare_enable(aio->chip->clk);
-	if (ret)
-		return ret;
+	if (!aio->chip->num_wup_aios) {
+		ret = clk_prepare_enable(aio->chip->clk);
+		if (ret)
+			return ret;
 
-	ret = reset_control_deassert(aio->chip->rst);
-	if (ret)
-		goto err_out_clock;
+		ret = reset_control_deassert(aio->chip->rst);
+		if (ret)
+			goto err_out_clock;
+	}
 
 	aio_iecout_set_enable(aio->chip, true);
 	aio_chip_init(aio->chip);
@@ -458,7 +475,7 @@ int uniphier_aio_dai_resume(struct snd_soc_dai *dai)
 
 		ret = aio_init(sub);
 		if (ret)
-			goto err_out_clock;
+			goto err_out_reset;
 
 		if (!sub->setting)
 			continue;
@@ -466,15 +483,29 @@ int uniphier_aio_dai_resume(struct snd_soc_dai *dai)
 		aio_port_reset(sub);
 		aio_src_reset(sub);
 	}
+	aio->chip->num_wup_aios++;
 
 	return 0;
 
+err_out_reset:
+	if (!aio->chip->num_wup_aios)
+		reset_control_assert(aio->chip->rst);
 err_out_clock:
-	clk_disable_unprepare(aio->chip->clk);
+	if (!aio->chip->num_wup_aios)
+		clk_disable_unprepare(aio->chip->clk);
+
+	return ret;
+}
+
+static int uniphier_aio_resume(struct snd_soc_component *component)
+{
+	struct snd_soc_dai *dai;
+	int ret = 0;
 
+	for_each_component_dais(component, dai)
+		ret |= uniphier_aio_dai_resume(dai);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(uniphier_aio_dai_resume);
 
 static int uniphier_aio_vol_info(struct snd_kcontrol *kcontrol,
 				 struct snd_ctl_elem_info *uinfo)
@@ -586,6 +617,8 @@ static const struct snd_soc_component_driver uniphier_aio_component = {
 	.name = "uniphier-aio",
 	.controls = uniphier_aio_controls,
 	.num_controls = ARRAY_SIZE(uniphier_aio_controls),
+	.suspend = uniphier_aio_suspend,
+	.resume  = uniphier_aio_resume,
 };
 
 int uniphier_aio_probe(struct platform_device *pdev)
@@ -619,6 +652,7 @@ int uniphier_aio_probe(struct platform_device *pdev)
 		return PTR_ERR(chip->rst);
 
 	chip->num_aios = chip->chip_spec->num_dais;
+	chip->num_wup_aios = chip->num_aios;
 	chip->aios = devm_kcalloc(dev,
 				  chip->num_aios, sizeof(struct uniphier_aio),
 				  GFP_KERNEL);