ASoC: Add WM8958 based headset detection on Littlemill

The board supports CODECs that won't work with this but the CODEC driver
will check to see if it's running on the right chip for us.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/samsung/littlemill.c b/sound/soc/samsung/littlemill.c
index d2a44ab3c207309ba680e0e3747d41b0d07425c4..5d7680f4b7c1c0369ee15b9f48598580f8385136 100644 (file)
--- a/sound/soc/samsung/littlemill.c
+++ b/sound/soc/samsung/littlemill.c
@@ -154,8 +154,11 @@ static struct snd_soc_dapm_route audio_paths[] = {
        { "Headphone", NULL, "HPOUT1R" },
 };
 
+static struct snd_soc_jack littlemill_headset;
+
 static int littlemill_late_probe(struct snd_soc_card *card)
 {
+       struct snd_soc_codec *codec = card->rtd[0].codec;
        struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
        int ret;
 
@@ -164,6 +167,18 @@ static int littlemill_late_probe(struct snd_soc_card *card)
        if (ret < 0)
                return ret;
 
+       ret = snd_soc_jack_new(codec, "Headset",
+                              SND_JACK_HEADSET | SND_JACK_MECHANICAL |
+                              SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+                              SND_JACK_BTN_2 | SND_JACK_BTN_3 |
+                              SND_JACK_BTN_4 | SND_JACK_BTN_5,
+                              &littlemill_headset);
+       if (ret)
+               return ret;
+
+       /* This will check device compatibility itself */
+       wm8958_mic_detect(codec, &littlemill_headset, NULL, NULL);
+
        return 0;
 }