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ASoC: sun4i-codec: Add support for A31 Line Out playback

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The A31 integrated codec has a second "Line Out" output which does not
include an integrated amplifier in its path. This path does have a
separate volume control.

This patch adds support for the playback path from the DAC to the Line
Out pins.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chen-Yu Tsai 2016-11-03 15:55:50 +08:00 committed by Mark Brown
parent a1ca97ba44
commit 0f909f98d7
1 changed files with 39 additions and 0 deletions
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39
sound/soc/sunxi/sun4i-codec.c
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@ -794,11 +794,31 @@ static const struct snd_kcontrol_new sun6i_codec_hp_src[] = {
sun6i_codec_hp_src_enum),
};
/* line out controls */
static const char * const sun6i_codec_lineout_src_enum_text[] = {
"Stereo", "Mono Differential",
};
static SOC_ENUM_DOUBLE_DECL(sun6i_codec_lineout_src_enum,
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC,
SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC,
sun6i_codec_lineout_src_enum_text);
static const struct snd_kcontrol_new sun6i_codec_lineout_src[] = {
SOC_DAPM_ENUM("Line Out Source Playback Route",
sun6i_codec_lineout_src_enum),
};
/* 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 DECLARE_TLV_DB_RANGE(sun6i_codec_lineout_vol_scale,
0, 1, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
2, 31, TLV_DB_SCALE_ITEM(-4350, 150, 0),
);
static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
@ -808,10 +828,18 @@ static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_HPVOL, 0x3f, 0,
sun6i_codec_hp_vol_scale),
SOC_SINGLE_TLV("Line Out Playback Volume",
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTVC, 0x1f, 0,
sun6i_codec_lineout_vol_scale),
SOC_DOUBLE("Headphone Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE,
SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),
SOC_DOUBLE("Line Out Playback Switch",
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTLEN,
SUN6I_CODEC_MIC_CTRL_LINEOUTREN, 1, 0),
/* Mixer pre-gains */
SOC_SINGLE_TLV("Line In Playback Volume",
SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_LINEING,
@ -853,6 +881,11 @@ static const struct snd_soc_dapm_widget sun6i_codec_codec_dapm_widgets[] = {
SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUN6I_CODEC_OM_PA_CTRL,
SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL, 0x3, 0x3, 0),
SND_SOC_DAPM_OUTPUT("HP"),
/* Line Out path */
SND_SOC_DAPM_MUX("Line Out Source Playback Route",
SND_SOC_NOPM, 0, 0, sun6i_codec_lineout_src),
SND_SOC_DAPM_OUTPUT("LINEOUT"),
};
static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
@ -878,6 +911,12 @@ static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
{ "Headphone Amp", NULL, "Headphone Source Playback Route" },
{ "HP", NULL, "Headphone Amp" },
{ "HPCOM", NULL, "HPCOM Protection" },
/* Line Out Routes */
{ "Line Out Source Playback Route", "Stereo", "Left Mixer" },
{ "Line Out Source Playback Route", "Stereo", "Right Mixer" },
{ "Line Out Source Playback Route", "Mono Differential", "Left Mixer" },
{ "LINEOUT", NULL, "Line Out Source Playback Route" },
};
static struct snd_soc_codec_driver sun6i_codec_codec = {