2 files changed, 18 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 2b2dadc54da..3fddc7ad112 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1045,6 +1045,7 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w,
                       struct snd_kcontrol *kcontrol, int event)
 {
         struct snd_soc_codec *codec = w->codec;
+        struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
         struct wm8994 *control = codec->control_data;
         int mask = WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA;
         int i;
@@ -1063,6 +1064,10 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w,
 
         switch (event) {
         case SND_SOC_DAPM_PRE_PMU:
+                /* Don't enable timeslot 2 if not in use */
+                if (wm8994->channels[0] <= 2)
+                        mask &= ~(WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA);
+
                 val = snd_soc_read(codec, WM8994_AIF1_CONTROL_1);
                 if ((val & WM8994_AIF1ADCL_SRC) &&
                     (val & WM8994_AIF1ADCR_SRC))
@@ -2687,7 +2692,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
                 return -EINVAL;
         }
 
-        bclk_rate = params_rate(params) * 4;
+        bclk_rate = params_rate(params);
         switch (params_format(params)) {
         case SNDRV_PCM_FORMAT_S16_LE:
                 bclk_rate *= 16;
@@ -2708,6 +2713,17 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
                 return -EINVAL;
         }
 
+        wm8994->channels[id] = params_channels(params);
+        switch (params_channels(params)) {
+        case 1:
+        case 2:
+                bclk_rate *= 2;
+                break;
+        default:
+                bclk_rate *= 4;
+                break;
+        }
+
         /* Try to find an appropriate sample rate; look for an exact match. */
         for (i = 0; i < ARRAY_SIZE(srs); i++)
                 if (srs[i].rate == params_rate(params))
diff --git a/sound/soc/codecs/wm8994.h b/sound/soc/codecs/wm8994.h
index f142ec198db..ccbce5791e9 100644
--- a/sound/soc/codecs/wm8994.h
+++ b/sound/soc/codecs/wm8994.h
@@ -77,6 +77,7 @@ struct wm8994_priv {
         int sysclk_rate[2];
         int mclk[2];
         int aifclk[2];
+        int channels[2];
         struct wm8994_fll_config fll[2], fll_suspend[2];
         struct completion fll_locked[2];
         bool fll_locked_irq;