[alsa-devel] [PATCH 2/2 2.6.38] ASoC: WM8994: Ensure late enable events are processed for the ADCs

[Dimitris Papastamos]

Ensure that the ADCs are provided with a clock as the previous patch
"ASoC: WM8994: Improve playback robustness" did not handle this case
properly.

Signed-off-by: Dimitris Papastamos <dp at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8994.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 9e91525..f330ad0 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1096,6 +1096,13 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+static int adc_mux_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)
 {
@@ -1510,8 +1517,10 @@ SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8994_POWER_MANAGEMENT_4, 2, 0),
 SND_SOC_DAPM_ADC("ADCL", NULL, SND_SOC_NOPM, 1, 0),
 SND_SOC_DAPM_ADC("ADCR", NULL, SND_SOC_NOPM, 0, 0),
 
-SND_SOC_DAPM_MUX("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux),
-SND_SOC_DAPM_MUX("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux),
+SND_SOC_DAPM_MUX_E("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux,
+		   adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_MUX_E("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux,
+		   adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
 
 SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
-- 
1.7.4.1