[PATCH v14 7/8] ASoC: sun4i-codec: Add Differential Line Source

From: Danny Milosavljevic
Date: Wed May 02 2018 - 17:18:16 EST


Add Differential Line Source for Allwinner A10 and Allwinner A20.

Signed-off-by: Danny Milosavljevic <dannym@xxxxxxxxxxxxxxx>
---
sound/soc/sunxi/sun4i-codec.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 4125d9ef0eb6..45dcb80a1da9 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -110,6 +110,7 @@
#define SUN4I_CODEC_ADC_ACTL_VADCG (20)
#define SUN4I_CODEC_ADC_ACTL_ADCIS (17)
#define SUN4I_CODEC_ADC_ACTL_LNPREG (13)
+#define SUN4I_CODEC_ADC_ACTL_LNRDF (16)
#define SUN4I_CODEC_ADC_ACTL_PA_EN (4)
#define SUN4I_CODEC_ADC_ACTL_DDE (3)
#define SUN4I_CODEC_ADC_DEBUG (0x2c)
@@ -705,6 +706,20 @@ static DECLARE_TLV_DB_RANGE(sun7i_codec_micin_preamp_gain_scale,
0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0));

+static const char * const sun4i_codec_difflinein_source[] = {
+ "Stereo",
+ "Differential",
+};
+
+static SOC_ENUM_SINGLE_DECL(sun4i_codec_enum_difflinein_source,
+ SUN4I_CODEC_ADC_ACTL,
+ SUN4I_CODEC_ADC_ACTL_LNRDF,
+ sun4i_codec_difflinein_source);
+
+static const struct snd_kcontrol_new sun4i_codec_difflinein_source_controls =
+ SOC_DAPM_ENUM("Differential Line Source",
+ sun4i_codec_enum_difflinein_source);
+
static const struct snd_kcontrol_new sun4i_codec_controls[] = {
SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,
@@ -825,6 +840,11 @@ static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
&sun4i_codec_pa_mute),

+ /* MUX */
+ SND_SOC_DAPM_MUX("Differential Line Source", SND_SOC_NOPM,
+ 0, 0,
+ &sun4i_codec_difflinein_source_controls),
+
SND_SOC_DAPM_INPUT("Line Right"),
SND_SOC_DAPM_INPUT("Line Left"),
SND_SOC_DAPM_INPUT("FM Right"),
@@ -884,6 +904,10 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
{ "Right ADC", NULL, "MIC2 Pre-Amplifier" },
{ "MIC2 Pre-Amplifier", NULL, "Mic2"},
{ "Mic2", NULL, "VMIC" },
+
+ /* LNRDF Routes */
+ { "Differential Line Source", "Differential", "Line Left" },
+ { "Differential Line Source", "Differential", "Line Right" },
};

struct sun4i_codec_quirks {