[PATCH v2 3/3] ASoC: codecs: msm8916-wcd-digital: select DMIC source in CIC filter path

[srinivas . kandagatla]

From: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>

This patch fixes a missing selection of DMIC in CIC filter source path.
Without this patch dmic is not functional.

Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
---
 sound/soc/codecs/msm8916-wcd-digital.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/sound/soc/codecs/msm8916-wcd-digital.c 
b/sound/soc/codecs/msm8916-wcd-digital.c
index 825cc7d..f82a936 100644
--- a/sound/soc/codecs/msm8916-wcd-digital.c
+++ b/sound/soc/codecs/msm8916-wcd-digital.c
@@ -168,6 +168,9 @@
 
 #define LPASS_CDC_TX2_VOL_CTL_CFG              (0x2A8)
 #define LPASS_CDC_TX1_MUX_CTL                  (0x28C)
+#define TX_MUX_CTL_ADC_DMIC_SEL_MASK           BIT(0)
+#define TX_MUX_CTL_ADC_DMIC_SEL_DMIC           BIT(0)
+#define TX_MUX_CTL_ADC_DMIC_SEL_ADC            0
 #define TX_MUX_CTL_CUT_OFF_FREQ_MASK           GENMASK(5, 4)
 #define TX_MUX_CTL_CUT_OFF_FREQ_SHIFT          4
 #define TX_MUX_CTL_CF_NEG_3DB_4HZ              (0x0 << 4)
@@ -439,17 +442,37 @@ static int msm8916_wcd_digital_enable_dmic(struct 
snd_soc_dapm_widget *w,
                                    DMIC_B1_CTL_DMIC0_CLK_SEL_DIV3);
                switch (dmic) {
                case 1:
+                       snd_soc_update_bits(codec, LPASS_CDC_TX1_MUX_CTL,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_MASK,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_DMIC);
                        snd_soc_update_bits(codec, LPASS_CDC_TX1_DMIC_CTL,
                                            TXN_DMIC_CTL_CLK_SEL_MASK,
                                            TXN_DMIC_CTL_CLK_SEL_DIV3);
                        break;
                case 2:
+                       snd_soc_update_bits(codec, LPASS_CDC_TX2_MUX_CTL,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_MASK,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_DMIC);
                        snd_soc_update_bits(codec, LPASS_CDC_TX2_DMIC_CTL,
                                            TXN_DMIC_CTL_CLK_SEL_MASK,
                                            TXN_DMIC_CTL_CLK_SEL_DIV3);
                        break;
                }
                break;
+       case SND_SOC_DAPM_POST_PMD:
+               switch (dmic) {
+               case 1:
+                       snd_soc_update_bits(codec, LPASS_CDC_TX1_MUX_CTL,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_MASK,
+                                           0);
+                       break;
+               case 2:
+                       snd_soc_update_bits(codec, LPASS_CDC_TX2_MUX_CTL,
+                                           TX_MUX_CTL_ADC_DMIC_SEL_MASK,
+                                           0);
+                       break;
+               }
+               break;
        }
 
        return 0;
@@ -536,6 +559,8 @@ static const struct snd_soc_dapm_widget 
msm8916_wcd_digital_dapm_widgets[] = {
        /* Connectivity Clock */
        SND_SOC_DAPM_SUPPLY_S("CDC_CONN", -2, LPASS_CDC_CLK_OTHR_CTL, 2, 0,
                              NULL, 0),
+       SND_SOC_DAPM_MIC("Digital Mic1", NULL),
+       SND_SOC_DAPM_MIC("Digital Mic2", NULL),
 
 };
 
-- 
2.9.3