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ASoC: mediatek: mt6358: save output volume for mixer controls 

Output volume settings from mixer controls would be lost.

Imagine that "Headphone Volume" has set to -10dB via amixer:
- in mtk_hp_enable()
  - hp_store_gain() saves the volume setting -10dB from regmap_read()
    to ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL]
  - headset_volume_ramp() ramps up from -10dB to -10dB
- in mtk_hp_disable()
  - headset_volume_ramp() ramps down from -10dB to -40dB

Next time in mtk_hp_enable(), hp_store_gain() would save -40dB but
not -10dB.  As a result, headset_volume_ramp() would ramp from -10dB to
-40dB (which is mute).

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tzung-Bi Shih 2019-05-07 18:12:19 +08:00 committed by Mark Brown
parent bdb8fa6b09
commit bbb56537a3
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 51 additions and 40 deletions
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85
sound/soc/codecs/mt6358.c
View File

@ -320,32 +320,6 @@ enum {
#define DL_GAIN_N_40DB_REG (DL_GAIN_N_40DB << 7 | DL_GAIN_N_40DB)
#define DL_GAIN_REG_MASK 0x0f9f
static void lo_store_gain(struct mt6358_priv *priv)
{
unsigned int reg;
unsigned int gain_l, gain_r;
regmap_read(priv->regmap, MT6358_ZCD_CON1, &reg);
gain_l = (reg >> RG_AUDLOLGAIN_SFT) & RG_AUDLOLGAIN_MASK;
gain_r = (reg >> RG_AUDLORGAIN_SFT) & RG_AUDLORGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTL] = gain_l;
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTR] = gain_r;
}
static void hp_store_gain(struct mt6358_priv *priv)
{
unsigned int reg;
unsigned int gain_l, gain_r;
regmap_read(priv->regmap, MT6358_ZCD_CON2, &reg);
gain_l = (reg >> RG_AUDHPLGAIN_SFT) & RG_AUDHPLGAIN_MASK;
gain_r = (reg >> RG_AUDHPRGAIN_SFT) & RG_AUDHPRGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL] = gain_l;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTR] = gain_r;
}
static void hp_zcd_disable(struct mt6358_priv *priv)
{
regmap_write(priv->regmap, MT6358_ZCD_CON0, 0x0000);
@ -439,20 +413,62 @@ static void headset_volume_ramp(struct mt6358_priv *priv, int from, int to)
}
}
static int mt6358_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_kcontrol_component(kcontrol);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg;
int ret;
ret = snd_soc_put_volsw(kcontrol, ucontrol);
if (ret < 0)
return ret;
switch (mc->reg) {
case MT6358_ZCD_CON2:
regmap_read(priv->regmap, MT6358_ZCD_CON2, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL] =
(reg >> RG_AUDHPLGAIN_SFT) & RG_AUDHPLGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTR] =
(reg >> RG_AUDHPRGAIN_SFT) & RG_AUDHPRGAIN_MASK;
break;
case MT6358_ZCD_CON1:
regmap_read(priv->regmap, MT6358_ZCD_CON1, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTL] =
(reg >> RG_AUDLOLGAIN_SFT) & RG_AUDLOLGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTR] =
(reg >> RG_AUDLORGAIN_SFT) & RG_AUDLORGAIN_MASK;
break;
case MT6358_ZCD_CON3:
regmap_read(priv->regmap, MT6358_ZCD_CON3, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_HSOUTL] =
(reg >> RG_AUDHSGAIN_SFT) & RG_AUDHSGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HSOUTR] =
(reg >> RG_AUDHSGAIN_SFT) & RG_AUDHSGAIN_MASK;
break;
}
return ret;
}
static const DECLARE_TLV_DB_SCALE(playback_tlv, -1000, 100, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 600, 0);
static const struct snd_kcontrol_new mt6358_snd_controls[] = {
/* dl pga gain */
SOC_DOUBLE_TLV("Headphone Volume",
SOC_DOUBLE_EXT_TLV("Headphone Volume",
MT6358_ZCD_CON2, 0, 7, 0x12, 1,
playback_tlv),
SOC_DOUBLE_TLV("Lineout Volume",
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
SOC_DOUBLE_EXT_TLV("Lineout Volume",
MT6358_ZCD_CON1, 0, 7, 0x12, 1,
playback_tlv),
SOC_SINGLE_TLV("Handset Volume",
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
SOC_SINGLE_EXT_TLV("Handset Volume",
MT6358_ZCD_CON3, 0, 0x12, 1,
playback_tlv),
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
/* ul pga gain */
SOC_DOUBLE_R_TLV("PGA Volume",
MT6358_AUDENC_ANA_CON0, MT6358_AUDENC_ANA_CON1,
@ -831,8 +847,6 @@ static int mtk_hp_enable(struct mt6358_priv *priv)
/* Reduce ESD resistance of AU_REFN */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4000);
/* save target gain to restore after hardware open complete */
hp_store_gain(priv);
/* Set HPR/HPL gain as minimum (~ -40dB) */
regmap_write(priv->regmap, MT6358_ZCD_CON2, DL_GAIN_N_40DB_REG);
@ -1042,8 +1056,6 @@ static int mtk_hp_spk_enable(struct mt6358_priv *priv)
/* Reduce ESD resistance of AU_REFN */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4000);
/* save target gain to restore after hardware open complete */
hp_store_gain(priv);
/* Set HPR/HPL gain to -10dB */
regmap_write(priv->regmap, MT6358_ZCD_CON2, DL_GAIN_N_10DB_REG);
@ -1103,7 +1115,6 @@ static int mtk_hp_spk_enable(struct mt6358_priv *priv)
hp_main_output_ramp(priv, true);
/* Set LO gain as minimum (~ -40dB) */
lo_store_gain(priv);
regmap_write(priv->regmap, MT6358_ZCD_CON1, DL_GAIN_N_40DB_REG);
/* apply volume setting */
headset_volume_ramp(priv,