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authorDimitris Papastamos <dp@opensource.wolfsonmicro.com>2011-03-01 12:54:39 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-03-03 11:12:37 +0000
commit8959c910884e8faf7987391d194d508e74904c16 (patch)
tree24922d26d601572f439f6b15079c9f5390571421 /sound/soc
parent04d286819ba499839d04cbf847f2ea28d5cf4296 (diff)
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>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/codecs/wm8994.c13
1 files changed, 13 insertions, 0 deletions
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[] = {