mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 07:04:24 +00:00
Code Issues Releases Wiki Activity

ASoC: codecs: ad193x: Group register initialization at probe

Browse source 
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>
This commit is contained in:
Codrin Ciubotariu 2019-06-27 15:02:07 +03:00 committed by Mark Brown
parent 53c8b29abe
commit bc0a5f43d7
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 33 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
sound/soc/codecs/ad193x.c
View file

@ -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)) {