[PATCH 04/11] ASoC: codecs: rt274: Move irq registration and cleanup

[Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>]

Currently irq is registered when i2c driver is loaded, it is unnecessary
when component is unused. Initialize irq only when we probe ASoC
component.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
Reviewed-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
---
 sound/soc/codecs/rt274.c | 44 ++++++++++++++++------------------------
 1 file changed, 18 insertions(+), 26 deletions(-)

diff --git a/sound/soc/codecs/rt274.c b/sound/soc/codecs/rt274.c
index a5615e94ec7d..144a6f775c21 100644
--- a/sound/soc/codecs/rt274.c
+++ b/sound/soc/codecs/rt274.c
@@ -978,13 +978,22 @@ static irqreturn_t rt274_irq(int irq, void *data)
 static int rt274_probe(struct snd_soc_component *component)
 {
 	struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component);
+	int ret;
 
 	rt274->component = component;
 	INIT_DELAYED_WORK(&rt274->jack_detect_work, rt274_jack_detect_work);
 
-	if (rt274->i2c->irq)
-		schedule_delayed_work(&rt274->jack_detect_work,
-				      msecs_to_jiffies(1250));
+	if (rt274->i2c->irq) {
+		ret = request_threaded_irq(rt274->i2c->irq, NULL, rt274_irq,
+					   IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt274", rt274);
+		if (ret) {
+			dev_err(&rt274->i2c->dev, "Failed to reguest IRQ: %d\n", ret);
+			return ret;
+		}
+
+		schedule_delayed_work(&rt274->jack_detect_work, msecs_to_jiffies(1250));
+	}
+
 	return 0;
 }
 
@@ -992,7 +1001,12 @@ static void rt274_remove(struct snd_soc_component *component)
 {
 	struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component);
 
-	cancel_delayed_work_sync(&rt274->jack_detect_work);
+	if (rt274->i2c->irq) {
+		cancel_delayed_work_sync(&rt274->jack_detect_work);
+
+		disable_irq(rt274->i2c->irq);
+		free_irq(rt274->i2c->irq, rt274);
+	}
 }
 
 #ifdef CONFIG_PM
@@ -1187,16 +1201,6 @@ static int rt274_i2c_probe(struct i2c_client *i2c)
 	regmap_write(rt274->regmap, RT274_UNSOLICITED_HP_OUT, 0x81);
 	regmap_write(rt274->regmap, RT274_UNSOLICITED_MIC, 0x82);
 
-	if (rt274->i2c->irq) {
-		ret = request_threaded_irq(rt274->i2c->irq, NULL, rt274_irq,
-			IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt274", rt274);
-		if (ret != 0) {
-			dev_err(&i2c->dev,
-				"Failed to reguest IRQ: %d\n", ret);
-			return ret;
-		}
-	}
-
 	ret = devm_snd_soc_register_component(&i2c->dev,
 				     &soc_component_dev_rt274,
 				     rt274_dai, ARRAY_SIZE(rt274_dai));
@@ -1204,17 +1208,6 @@ static int rt274_i2c_probe(struct i2c_client *i2c)
 	return ret;
 }
 
-static int rt274_i2c_remove(struct i2c_client *i2c)
-{
-	struct rt274_priv *rt274 = i2c_get_clientdata(i2c);
-
-	if (i2c->irq)
-		free_irq(i2c->irq, rt274);
-
-	return 0;
-}
-
-
 static struct i2c_driver rt274_i2c_driver = {
 	.driver = {
 		   .name = "rt274",
@@ -1224,7 +1217,6 @@ static struct i2c_driver rt274_i2c_driver = {
 #endif
 		   },
 	.probe_new = rt274_i2c_probe,
-	.remove = rt274_i2c_remove,
 	.id_table = rt274_i2c_id,
 };
 
-- 
2.25.1