[PATCH v2 07/14] ASoC: sun4i-codec: Add support for A31 Line In playback

Chen-Yu Tsai
2016-11-03T07:55:49Z

The A31 integrated codec has a stereo "Line In" input. Add support for
it to the playback paths.

Signed-off-by: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
---
sound/soc/sunxi/sun4i-codec.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 12b9e08a3e64..4abac9962165 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -774,6 +774,10 @@ static const struct snd_kcontrol_new sun6i_codec_mixer_controls[] = {
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL, 1, 0),
+ SOC_DAPM_DOUBLE("Line In Playback Switch",
+ SUN6I_CODEC_OM_DACA_CTRL,
+ SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL,
+ SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR, 1, 0),
};

/* headphone controls */
@@ -795,6 +799,8 @@ static const struct snd_kcontrol_new sun6i_codec_hp_src[] = {
/* volume / mute controls */
static const DECLARE_TLV_DB_SCALE(sun6i_codec_dvol_scale, -7308, 116, 0);
static const DECLARE_TLV_DB_SCALE(sun6i_codec_hp_vol_scale, -6300, 100, 1);
+static const DECLARE_TLV_DB_SCALE(sun6i_codec_out_mixer_pregain_scale,
+ -450, 150, 0);

static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
@@ -808,9 +814,16 @@ static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE,
SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),
+ /* Mixer pre-gains */
+ SOC_SINGLE_TLV("Line In Playback Volume",
+ SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_LINEING,
+ 0x7, 0, sun6i_codec_out_mixer_pregain_scale),
};

static const struct snd_soc_dapm_widget sun6i_codec_codec_dapm_widgets[] = {
+ /* Line In */
+ SND_SOC_DAPM_INPUT("LINEIN"),
+
/* Digital parts of the DACs */
SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_EN_DA, 0,
@@ -852,10 +865,12 @@ static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
/* Left Mixer Routes */
{ "Left Mixer", "DAC Playback Switch", "Left DAC" },
{ "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" },
+ { "Left Mixer", "Line In Playback Switch", "LINEIN" },

/* Right Mixer Routes */
{ "Right Mixer", "DAC Playback Switch", "Right DAC" },
{ "Right Mixer", "DAC Reversed Playback Switch", "Left DAC" },
+ { "Right Mixer", "Line In Playback Switch", "LINEIN" },

/* Headphone Routes */
{ "Headphone Source Playback Route", "DAC", "Left DAC" },
--
2.10.2