[PATCH 4/5] ASoC: codecs: ad193x: Add runtime support for DSP_A and I2S modes

[Codrin.Ciubotariu]

From: Codrin Ciubotariu <codrin.ciubota...@microchip.com>

The driver only supports DPS_A for DAC, which is configured at probe.
This patch adds support for DSP_A and I2S modes by using the set_fmt()
callback.

A trivial break is also removed from a case's default branch.

Signed-off-by: Codrin Ciubotariu <codrin.ciubota...@microchip.com>
---
 sound/soc/codecs/ad193x.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 315ec9775118..f8cf182518a3 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -188,23 +188,26 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai 
*codec_dai,
 {
        struct ad193x_priv *ad193x = 
snd_soc_component_get_drvdata(codec_dai->component);
        unsigned int adc_serfmt = 0;
+       unsigned int dac_serfmt = 0;
        unsigned int adc_fmt = 0;
        unsigned int dac_fmt = 0;
 
        /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
-        * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
+        * with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode
+        * (SND_SOC_DAIFMT_I2S)
         */
        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
        case SND_SOC_DAIFMT_I2S:
                adc_serfmt |= AD193X_ADC_SERFMT_TDM;
+               dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
                break;
        case SND_SOC_DAIFMT_DSP_A:
                adc_serfmt |= AD193X_ADC_SERFMT_AUX;
+               dac_serfmt |= AD193X_DAC_SERFMT_TDM;
                break;
        default:
                if (ad193x_has_adc(ad193x))
                        return -EINVAL;
-               break;
        }
 
        switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -261,6 +264,8 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
                regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
                                   AD193X_ADC_FMT_MASK, adc_fmt);
        }
+       regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,
+                          AD193X_DAC_SERFMT_MASK, dac_serfmt);
        regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
                AD193X_DAC_FMT_MASK, dac_fmt);
 
-- 
2.17.1