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 --- sound/soc/codecs/mt6358.c | 91 ++++++++++++++++++++++----------------- 1 file changed, 51 insertions(+), 40 deletions(-)
diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c index 96547ae50a5d..44edbda8afcc 100644 --- a/sound/soc/codecs/mt6358.c +++ b/sound/soc/codecs/mt6358.c @@ -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, ®); - 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, ®); - 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, ®); + 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, ®); + 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, ®); + 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", - MT6358_ZCD_CON2, 0, 7, 0x12, 1, - playback_tlv), - SOC_DOUBLE_TLV("Lineout Volume", - MT6358_ZCD_CON1, 0, 7, 0x12, 1, - playback_tlv), - SOC_SINGLE_TLV("Handset Volume", - MT6358_ZCD_CON3, 0, 0x12, 1, - playback_tlv), + SOC_DOUBLE_EXT_TLV("Headphone Volume", + MT6358_ZCD_CON2, 0, 7, 0x12, 1, + snd_soc_get_volsw, mt6358_put_volsw, playback_tlv), + SOC_DOUBLE_EXT_TLV("Lineout Volume", + MT6358_ZCD_CON1, 0, 7, 0x12, 1, + snd_soc_get_volsw, mt6358_put_volsw, playback_tlv), + SOC_SINGLE_EXT_TLV("Handset Volume", + MT6358_ZCD_CON3, 0, 0x12, 1, + 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,