ASoC: codecs: ad193x: Use regmap_multi_reg_write() when initializing

Using regmap_multi_reg_write() when we set the default values for our
registers makes the code smaller and easier to read.
Suggested-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20190710105119.22987-1-codrin.ciubotariu@microchip.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/ad193x.c

@@ -413,15 +413,10 @@ 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[] = {
+	const struct reg_sequence 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 */
@@ -437,21 +432,17 @@ static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
 		{ 12, 0x00 },	/* DAC_L4_VOL: no attenuation */
 		{ 13, 0x00 },	/* DAC_R4_VOL: no attenuation */
 	};
-	const struct ad193x_reg_default reg_adc_init[] = {
+	const struct reg_sequence reg_adc_init[] = {
 		{ 14, 0x03 },	/* ADC_CTRL0: high-pass filter enable */
 		{ 15, 0x43 },	/* ADC_CTRL1: sata delay=1, adc aux mode */
 		{ 16, 0x00 },	/* ADC_CTRL2: reset */
 	};
-	int i;
 
-	for (i = 0; i < ARRAY_SIZE(reg_init); i++)
-		regmap_write(ad193x->regmap, reg_init[i].reg, reg_init[i].val);
+	regmap_multi_reg_write(ad193x->regmap, reg_init, ARRAY_SIZE(reg_init));
 
 	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);
-		}
+		regmap_multi_reg_write(ad193x->regmap, reg_adc_init,
+				       ARRAY_SIZE(reg_adc_init));
 	}
 }