ASoC: wm8994: Demux the microphone detection IRQ

Current code only allows direct routing of the WM8994 microphone
detection signal to a GPIO this change adds support to demux the
interrupt from the main interrupt line of the codec.

Signed-off-by: Nikesh Oswal <nikesh@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 12 insertions, 6 deletions

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 6cc0566dc29a..1fcb9f3f3097 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -4082,17 +4082,23 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
 
         switch (control->type) {
         case WM8994:
-                if (wm8994->micdet_irq) {
+                if (wm8994->micdet_irq)
                         ret = request_threaded_irq(wm8994->micdet_irq, NULL,
                                                    wm8994_mic_irq,
                                                    IRQF_TRIGGER_RISING,
                                                    "Mic1 detect",
                                                    wm8994);
-                        if (ret != 0)
-                                dev_warn(codec->dev,
-                                         "Failed to request Mic1 detect IRQ: %d\n",
-                                         ret);
-                }
+                 else
+                        ret = wm8994_request_irq(wm8994->wm8994,
+                                        WM8994_IRQ_MIC1_DET,
+                                        wm8994_mic_irq, "Mic 1 detect",
+                                        wm8994);
+
+                if (ret != 0)
+                        dev_warn(codec->dev,
+                                 "Failed to request Mic1 detect IRQ: %d\n",
+                                 ret);
+
 
                 ret = wm8994_request_irq(wm8994->wm8994,
                                          WM8994_IRQ_MIC1_SHRT,