ASoC: WM8994: Ensure late enable events are processed for the ADCs

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@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 9e91525..4afbe3b 100644 (file)
--- 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)
 {
@@ -1416,6 +1423,18 @@ SND_SOC_DAPM_DAC("DAC1L", NULL, WM8994_POWER_MANAGEMENT_5, 1, 0),
 SND_SOC_DAPM_DAC("DAC1R", NULL, WM8994_POWER_MANAGEMENT_5, 0, 0),
 };
 
+static const struct snd_soc_dapm_widget wm8994_adc_revd_widgets[] = {
+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),
+};
+
+static const struct snd_soc_dapm_widget wm8994_adc_widgets[] = {
+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),
+};
+
 static const struct snd_soc_dapm_widget wm8994_dapm_widgets[] = {
 SND_SOC_DAPM_INPUT("DMIC1DAT"),
 SND_SOC_DAPM_INPUT("DMIC2DAT"),
@@ -1510,9 +1529,6 @@ 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("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
 
@@ -3293,11 +3309,15 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
                if (wm8994->revision < 4) {
                        snd_soc_dapm_new_controls(dapm, wm8994_lateclk_revd_widgets,
                                                  ARRAY_SIZE(wm8994_lateclk_revd_widgets));
+                       snd_soc_dapm_new_controls(dapm, wm8994_adc_revd_widgets,
+                                                 ARRAY_SIZE(wm8994_adc_revd_widgets));
                        snd_soc_dapm_new_controls(dapm, wm8994_dac_revd_widgets,
                                                  ARRAY_SIZE(wm8994_dac_revd_widgets));
                } else {
                        snd_soc_dapm_new_controls(dapm, wm8994_lateclk_widgets,
                                                  ARRAY_SIZE(wm8994_lateclk_widgets));
+                       snd_soc_dapm_new_controls(dapm, wm8994_adc_widgets,
+                                                 ARRAY_SIZE(wm8994_adc_widgets));
                        snd_soc_dapm_new_controls(dapm, wm8994_dac_widgets,
                                                  ARRAY_SIZE(wm8994_dac_widgets));
                }