[PATCH 08/11] ASoC: codecs: rt286: Enable irq only when needed

[Amadeusz Sławiński]

Interrupt is only needed when jack detection is enabled, so enable it
then, similarly disable it when jack detection is being disabled.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski at intel.com>
---
 sound/soc/codecs/rt286.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index 02a41c915776..6384b4cb9eaf 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -16,6 +16,7 @@
 #include <linux/spi/spi.h>
 #include <linux/dmi.h>
 #include <linux/acpi.h>
+#include <linux/irq.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -324,11 +325,14 @@ static int rt286_mic_detect(struct snd_soc_component *component,
 		if (rt286->jack->status & SND_JACK_HEADPHONE)
 			snd_soc_dapm_force_enable_pin(dapm, "LDO1");
 		regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x2, 0x2);
+		enable_irq(rt286->i2c->irq);
+
 		/* Send an initial empty report */
 		snd_soc_jack_report(rt286->jack, rt286->jack->status,
 			SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
 	} else {
 		/* disable IRQ */
+		disable_irq(rt286->i2c->irq);
 		regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x2, 0x0);
 		snd_soc_dapm_disable_pin(dapm, "LDO1");
 	}
@@ -951,6 +955,9 @@ static int rt286_probe(struct snd_soc_component *component)
 	INIT_DELAYED_WORK(&rt286->jack_detect_work, rt286_jack_detect_work);
 
 	if (rt286->i2c->irq) {
+		/* irq will be enabled in rt286_mic_detect */
+		irq_set_status_flags(rt286->i2c->irq, IRQ_NOAUTOEN);
+
 		ret = request_threaded_irq(rt286->i2c->irq, NULL, rt286_irq,
 					   IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt286", rt286);
 		if (ret) {
-- 
2.25.1