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Subject[PATCH 2/2] ASoC: codecs: ad193x: Reset used registers at probe
Date
Since the ad193x codecs have no software reset, we have to reinitialize the
registers after a hardware reset to assure no previous values are kept.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
---
sound/soc/codecs/ad193x.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index f944228f014e..80dab5df9633 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -425,12 +425,22 @@ static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
{ 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 */
+ { 3, 0x00 }, /* DAC_CTRL1: reset */
{ 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */
{ 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */
+ { 6, 0x00 }, /* DAC_L1_VOL: no attenuation */
+ { 7, 0x00 }, /* DAC_R1_VOL: no attenuation */
+ { 8, 0x00 }, /* DAC_L2_VOL: no attenuation */
+ { 9, 0x00 }, /* DAC_R2_VOL: no attenuation */
+ { 10, 0x00 }, /* DAC_L3_VOL: no attenuation */
+ { 11, 0x00 }, /* DAC_R3_VOL: no attenuation */
+ { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */
+ { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */
};
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 */
+ { 16, 0x00 }, /* ADC_CTRL2: reset */
};
int i;

--
2.20.1
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