From bc0a5f43d7d6ba5258a65cf00fa692845f128d3c Mon Sep 17 00:00:00 2001 From: Codrin Ciubotariu Date: Thu, 27 Jun 2019 15:02:07 +0300 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/codecs/ad193x.c | 52 +++++++++++++++++++++++++-------------- 1 file changed, 33 insertions(+), 19 deletions(-) diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c index 05f4514048e2..f3bab8fe3579 100644 --- 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)) { -- 2.45.2