ASoC: sn95031: enable the DMIC bias

this patch enables the digital mic bias when the digital mics are in use

Change-Id: I5283b7369d3610f0fafcbdb4d869055f0caeddb8
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index e80e0b0..3d24575 100644 (file)
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -219,47 +219,64 @@ static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
 static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
                        struct snd_kcontrol *k, int event)
 {
-       unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
+       unsigned int ldo = 0, clk_dir = 0, data_dir = 0, bias = 0;
 
+       pr_debug("sn95031_dmic12_event\n");
        if (SND_SOC_DAPM_EVENT_ON(event)) {
+               pr_debug("sn95031_dmic12_eventi ON\n");
                ldo = BIT(5)|BIT(4);
                clk_dir = BIT(0);
                data_dir = BIT(7);
+               bias = BIT(3);
        }
        /* program DMIC LDO, clock and set clock */
        snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
        snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
        snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir);
+       snd_soc_update_bits(w->codec, SN95031_DMICMUX, BIT(3), bias);
        return 0;
 }
 
 static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
                        struct snd_kcontrol *k, int event)
 {
-       unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
+       unsigned int ldo = 0, clk_dir = 0, data_dir = 0, bias = 0;
 
+       pr_debug("sn95031_dmic34_event\n");
        if (SND_SOC_DAPM_EVENT_ON(event)) {
+               pr_debug("sn95031_dmic34_event ON\n");
                ldo = BIT(5)|BIT(4);
                clk_dir = BIT(2);
                data_dir = BIT(1);
+               bias = BIT(4);
        }
        /* program DMIC LDO, clock and set clock */
        snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
        snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
        snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir);
+       snd_soc_update_bits(w->codec, SN95031_DMICMUX, BIT(4), bias);
        return 0;
 }
 
 static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
                        struct snd_kcontrol *k, int event)
 {
-       unsigned int ldo = 0;
+       unsigned int ldo = 0, clk_dir = 0, data_dir = 0, bias = 0;
 
-       if (SND_SOC_DAPM_EVENT_ON(event))
+       pr_debug("sn95031_dmic56_event\n");
+       if (SND_SOC_DAPM_EVENT_ON(event)) {
+               pr_debug("sn95031_dmic56_event ON\n");
                ldo = BIT(7)|BIT(6);
+               clk_dir = BIT(4);
+               data_dir = BIT(3);
+               bias = BIT(5);
+       }
 
        /* program DMIC LDO */
        snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
+       snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(4), clk_dir);
+       snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(3), data_dir);
+       snd_soc_update_bits(w->codec, SN95031_DMICMUX, BIT(5), bias);
        return 0;
 }