2 files changed, 22 insertions, 4 deletions

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 6fd6d0b1055..bd557c2bcb8 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -143,6 +143,9 @@ struct twl4030_priv {
         u8 earpiece_enabled;
         u8 predrivel_enabled, predriver_enabled;
         u8 carkitl_enabled, carkitr_enabled;
+
+        /* Delay needed after enabling the digimic interface */
+        unsigned int digimic_delay;
 };
 
 /*
@@ -312,6 +315,8 @@ static void twl4030_init_chip(struct platform_device *pdev)
         if (!setup)
                 return;
 
+        twl4030->digimic_delay = setup->digimic_delay;
+
         /* Configuration for headset ramp delay from setup data */
         if (setup->sysclk != twl4030->sysclk)
                 dev_warn(codec->dev,
@@ -855,6 +860,16 @@ static int headsetrpga_event(struct snd_soc_dapm_widget *w,
         return 0;
 }
 
+static int digimic_event(struct snd_soc_dapm_widget *w,
+                struct snd_kcontrol *kcontrol, int event)
+{
+        struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
+
+        if (twl4030->digimic_delay)
+                mdelay(twl4030->digimic_delay);
+        return 0;
+}
+
 /*
  * Some of the gain controls in TWL (mostly those which are associated with
  * the outputs) are implemented in an interesting way:
@@ -1439,10 +1454,12 @@ static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
         SND_SOC_DAPM_PGA("ADC Physical Right",
                 TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
 
-        SND_SOC_DAPM_PGA("Digimic0 Enable",
-                TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0),
-        SND_SOC_DAPM_PGA("Digimic1 Enable",
-                TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0),
+        SND_SOC_DAPM_PGA_E("Digimic0 Enable",
+                TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
+                digimic_event, SND_SOC_DAPM_POST_PMU),
+        SND_SOC_DAPM_PGA_E("Digimic1 Enable",
+                TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
+                digimic_event, SND_SOC_DAPM_POST_PMU),
 
         SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 0),
         SND_SOC_DAPM_MICBIAS("Mic Bias 2", TWL4030_REG_MICBIAS_CTL, 1, 0),
diff --git a/sound/soc/codecs/twl4030.h b/sound/soc/codecs/twl4030.h
index 788e3d12509..6c57430f6e2 100644
--- a/sound/soc/codecs/twl4030.h
+++ b/sound/soc/codecs/twl4030.h
@@ -41,6 +41,7 @@ extern struct snd_soc_codec_device soc_codec_dev_twl4030;
 
 struct twl4030_setup_data {
         unsigned int ramp_delay_value;
+        unsigned int digimic_delay; /* in ms */
         unsigned int sysclk;
         unsigned int offset_cncl_path;
         unsigned int check_defaults:1;