ASoC: tegra: Add DAPM widgets/routes for Harmony

With this change, I can capture from a microphone plugged into the
mic jack on Harmony (after unmuting Left Input PGA, and maybe turning
up the gain there too).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/sound/soc/tegra/harmony.c b/sound/soc/tegra/harmony.c
index bf0dbafbf6d0..b160b7113f45 100644
--- a/sound/soc/tegra/harmony.c
+++ b/sound/soc/tegra/harmony.c
@@ -107,6 +107,36 @@ static struct snd_soc_ops harmony_asoc_ops = {
         .hw_params = harmony_asoc_hw_params,
 };
 
+static const struct snd_soc_dapm_widget harmony_dapm_widgets[] = {
+        SND_SOC_DAPM_HP("Headphone Jack", NULL),
+        SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route harmony_audio_map[] = {
+        {"Headphone Jack", NULL, "HPOUTR"},
+        {"Headphone Jack", NULL, "HPOUTL"},
+        {"Mic Bias", NULL, "Mic Jack"},
+        {"IN1L", NULL, "Mic Bias"},
+};
+
+static int harmony_asoc_init(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_soc_codec *codec = rtd->codec;
+        struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+        snd_soc_dapm_new_controls(dapm, harmony_dapm_widgets,
+                                        ARRAY_SIZE(harmony_dapm_widgets));
+
+        snd_soc_dapm_add_routes(dapm, harmony_audio_map,
+                                ARRAY_SIZE(harmony_audio_map));
+
+        snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+        snd_soc_dapm_enable_pin(dapm, "Mic Jack");
+        snd_soc_dapm_sync(dapm);
+
+        return 0;
+}
+
 static struct snd_soc_dai_link harmony_wm8903_dai = {
         .name = "WM8903",
         .stream_name = "WM8903 PCM",
@@ -114,6 +144,7 @@ static struct snd_soc_dai_link harmony_wm8903_dai = {
         .platform_name = "tegra-pcm-audio",
         .cpu_dai_name = "tegra-i2s.0",
         .codec_dai_name = "wm8903-hifi",
+        .init = harmony_asoc_init,
         .ops = &harmony_asoc_ops,
 };