The patch
ASoC: mediatek: mt6358: save output volume for mixer controls
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From bbb56537a3279f7221e253afc29e834a3d99662f Mon Sep 17 00:00:00 2001
From: Tzung-Bi Shih tzungbi@google.com Date: Tue, 7 May 2019 18:12:19 +0800 Subject: [PATCH] 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 --- 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,