From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Tue, 1 Mar 2011 12:54:39 +0000 (+0000)
Subject: ASoC: WM8994: Ensure MICBIAS is provided with a clock
X-Git-Tag: MMI-PSA29.97-13-9~16612^2~1145^2~49^2~1
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8959c910884e8faf7987391d194d508e74904c16;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

ASoC: WM8994: Ensure MICBIAS is provided with a clock

The patch 'ASoC: WM8994: Improve Playback Robustness' did not handle
this case properly.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 4afbe3b2e443..38bfff7d209a 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1103,6 +1103,13 @@ static int adc_mux_ev(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+static int micbias_ev(struct snd_soc_dapm_widget *w,
+		      struct snd_kcontrol *kcontrol, int event)
+{
+	late_enable_ev(w, kcontrol, event);
+	return 0;
+}
+
 static int dac_ev(struct snd_soc_dapm_widget *w,
 		  struct snd_kcontrol *kcontrol, int event)
 {
@@ -1440,6 +1447,10 @@ SND_SOC_DAPM_INPUT("DMIC1DAT"),
 SND_SOC_DAPM_INPUT("DMIC2DAT"),
 SND_SOC_DAPM_INPUT("Clock"),
 
+SND_SOC_DAPM_MICBIAS("MICBIAS", WM8994_MICBIAS, 2, 0),
+SND_SOC_DAPM_SUPPLY_S("MICBIAS Supply", 1, SND_SOC_NOPM, 0, 0, micbias_ev,
+		      SND_SOC_DAPM_PRE_PMU),
+
 SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
 		    SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 
@@ -1755,6 +1766,8 @@ static const struct snd_soc_dapm_route wm8994_revd_intercon[] = {
 	{ "AIF2DACDAT", NULL, "AIF1DACDAT" },
 	{ "AIF1ADCDAT", NULL, "AIF2ADCDAT" },
 	{ "AIF2ADCDAT", NULL, "AIF1ADCDAT" },
+	{ "MICBIAS", NULL, "CLK_SYS" },
+	{ "MICBIAS", NULL, "MICBIAS Supply" },
 };
 
 static const struct snd_soc_dapm_route wm8994_intercon[] = {