ASoC: codecs: ad193x: Group register initialization at probe

Create a structure with the register initialization values at probe and
use it to initialize all the registers at once.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 05f4514..f3bab8f 100644 (file)
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -415,6 +415,38 @@ static struct snd_soc_dai_driver ad193x_no_adc_dai = {
        .ops = &ad193x_dai_ops,
 };
 
+struct ad193x_reg_default {
+       unsigned int reg;
+       unsigned int val;
+};
+
+/* codec register values to set after reset */
+static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
+{
+       const struct ad193x_reg_default reg_init[] = {
+               {  0, 0x99 },   /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */
+               {  1, 0x04 },   /* PLL_CLK_CTRL1: no on-chip Vref */
+               {  2, 0x40 },   /* DAC_CTRL0: TDM mode */
+               {  4, 0x1A },   /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */
+               {  5, 0x00 },   /* DAC_CHNL_MUTE: unmute DAC channels */
+       };
+       const struct ad193x_reg_default reg_adc_init[] = {
+               { 14, 0x03 },   /* ADC_CTRL0: high-pass filter enable */
+               { 15, 0x43 },   /* ADC_CTRL1: sata delay=1, adc aux mode */
+       };
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(reg_init); i++)
+               regmap_write(ad193x->regmap, reg_init[i].reg, reg_init[i].val);
+
+       if (ad193x_has_adc(ad193x)) {
+               for (i = 0; i < ARRAY_SIZE(reg_adc_init); i++) {
+                       regmap_write(ad193x->regmap, reg_adc_init[i].reg,
+                                    reg_adc_init[i].val);
+               }
+       }
+}
+
 static int ad193x_component_probe(struct snd_soc_component *component)
 {
        struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
@@ -422,25 +454,7 @@ static int ad193x_component_probe(struct snd_soc_component *component)
        int num, ret;
 
        /* default setting for ad193x */
-
-       /* unmute dac channels */
-       regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0);
-       /* de-emphasis: 48kHz, powedown dac */
-       regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A);
-       /* dac in tdm mode */
-       regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x40);
-
-       /* adc only */
-       if (ad193x_has_adc(ad193x)) {
-               /* high-pass filter enable */
-               regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3);
-               /* sata delay=1, adc aux mode */
-               regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43);
-       }
-
-       /* pll input: mclki/xi */
-       regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
-       regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL1, 0x04);
+       ad193x_reg_default_init(ad193x);
 
        /* adc only */
        if (ad193x_has_adc(ad193x)) {