ASoC: rt5514: Add the I2S ASRC support
The patch adds the I2S ASRC support.
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index a105c84..882fdc4 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -63,6 +63,7 @@
{RT5514_SRC_CTRL, 0x44000eee},
{RT5514_ANA_CTRL_LDO10, 0x00028604},
{RT5514_ANA_CTRL_ADCFED, 0x00000800},
+ {RT5514_ASRC_IN_CTRL1, 0x00000003},
};
static const struct reg_default rt5514_reg[] = {
@@ -471,6 +472,15 @@
return 0;
}
+static int rt5514_i2s_use_asrc(struct snd_soc_dapm_widget *source,
+ struct snd_soc_dapm_widget *sink)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
+ struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
+
+ return (rt5514->sysclk > rt5514->lrck * 384);
+}
+
static const struct snd_soc_dapm_widget rt5514_dapm_widgets[] = {
/* Input Lines */
SND_SOC_DAPM_INPUT("DMIC1L"),
@@ -541,6 +551,10 @@
RT5514_POW_PLL1_LDO_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1", RT5514_PWR_ANA2, RT5514_POW_PLL1_BIT, 0,
NULL, 0),
+ SND_SOC_DAPM_SUPPLY_S("ASRC AD1", 1, RT5514_CLK_CTRL2,
+ RT5514_CLK_AD0_ASRC_EN_BIT, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY_S("ASRC AD2", 1, RT5514_CLK_CTRL2,
+ RT5514_CLK_AD1_ASRC_EN_BIT, 0, NULL, 0),
/* ADC Mux */
SND_SOC_DAPM_MUX("Stereo1 DMIC Mux", SND_SOC_NOPM, 0, 0,
@@ -638,6 +652,7 @@
{ "Stereo1 ADC MIX", NULL, "Stereo1 ADC MIXR" },
{ "Stereo1 ADC MIX", NULL, "adc stereo1 filter" },
{ "adc stereo1 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
+ { "adc stereo1 filter", NULL, "ASRC AD1", rt5514_i2s_use_asrc },
{ "Stereo2 DMIC Mux", "DMIC1", "DMIC1" },
{ "Stereo2 DMIC Mux", "DMIC2", "DMIC2" },
@@ -654,6 +669,7 @@
{ "Stereo2 ADC MIX", NULL, "Stereo2 ADC MIXR" },
{ "Stereo2 ADC MIX", NULL, "adc stereo2 filter" },
{ "adc stereo2 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
+ { "adc stereo2 filter", NULL, "ASRC AD2", rt5514_i2s_use_asrc },
{ "AIF1TX", NULL, "Stereo1 ADC MIX"},
{ "AIF1TX", NULL, "Stereo2 ADC MIX"},
@@ -706,6 +722,9 @@
regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1, RT5514_I2S_DL_MASK,
val_len);
+ regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL1,
+ RT5514_CLK_AD_ANA1_SEL_MASK,
+ (pre_div + 1) << RT5514_CLK_AD_ANA1_SEL_SFT);
regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
RT5514_CLK_SYS_DIV_OUT_MASK | RT5514_SEL_ADC_OSR_MASK,
pre_div << RT5514_CLK_SYS_DIV_OUT_SFT |