Merge branch 'for-3.0' into for-3.1

[firefly-linux-kernel-4.4.55.git] / sound / soc / codecs / wm8994.c

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index c749ef339665e886d66c9b0c70467b1b1b107134..09e680ae88b244003fd6c63f1a7300e3b92bdfd3 100644 (file)
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1206,7 +1206,6 @@ 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),
 
@@ -1517,8 +1516,10 @@ 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" },
+       { "MICBIAS1", NULL, "CLK_SYS" },
+       { "MICBIAS1", NULL, "MICBIAS Supply" },
+       { "MICBIAS2", NULL, "CLK_SYS" },
+       { "MICBIAS2", NULL, "MICBIAS Supply" },
 };
 
 static const struct snd_soc_dapm_route wm8994_intercon[] = {
@@ -2299,6 +2300,33 @@ static int wm8994_aif3_hw_params(struct snd_pcm_substream *substream,
        return snd_soc_update_bits(codec, aif1_reg, WM8994_AIF1_WL_MASK, aif1);
 }
 
+static void wm8994_aif_shutdown(struct snd_pcm_substream *substream,
+                               struct snd_soc_dai *dai)
+{
+       struct snd_soc_codec *codec = dai->codec;
+       int rate_reg = 0;
+
+       switch (dai->id) {
+       case 1:
+               rate_reg = WM8994_AIF1_RATE;
+               break;
+       case 2:
+               rate_reg = WM8994_AIF1_RATE;
+               break;
+       default:
+               break;
+       }
+
+       /* If the DAI is idle then configure the divider tree for the
+        * lowest output rate to save a little power if the clock is
+        * still active (eg, because it is system clock).
+        */
+       if (rate_reg && !dai->playback_active && !dai->capture_active)
+               snd_soc_update_bits(codec, rate_reg,
+                                   WM8994_AIF1_SR_MASK |
+                                   WM8994_AIF1CLK_RATE_MASK, 0x9);
+}
+
 static int wm8994_aif_mute(struct snd_soc_dai *codec_dai, int mute)
 {
        struct snd_soc_codec *codec = codec_dai->codec;
@@ -2365,6 +2393,7 @@ static struct snd_soc_dai_ops wm8994_aif1_dai_ops = {
        .set_sysclk     = wm8994_set_dai_sysclk,
        .set_fmt        = wm8994_set_dai_fmt,
        .hw_params      = wm8994_hw_params,
+       .shutdown       = wm8994_aif_shutdown,
        .digital_mute   = wm8994_aif_mute,
        .set_pll        = wm8994_set_fll,
        .set_tristate   = wm8994_set_tristate,
@@ -2374,6 +2403,7 @@ static struct snd_soc_dai_ops wm8994_aif2_dai_ops = {
        .set_sysclk     = wm8994_set_dai_sysclk,
        .set_fmt        = wm8994_set_dai_fmt,
        .hw_params      = wm8994_hw_params,
+       .shutdown       = wm8994_aif_shutdown,
        .digital_mute   = wm8994_aif_mute,
        .set_pll        = wm8994_set_fll,
        .set_tristate   = wm8994_set_tristate,