diff options
Diffstat (limited to 'sound/soc/tegra/tegra210_mixer.c')
| -rw-r--r-- | sound/soc/tegra/tegra210_mixer.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/sound/soc/tegra/tegra210_mixer.c b/sound/soc/tegra/tegra210_mixer.c index 55e61776c565..51d375573cfa 100644 --- a/sound/soc/tegra/tegra210_mixer.c +++ b/sound/soc/tegra/tegra210_mixer.c @@ -192,24 +192,24 @@ static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol, return 0; } -static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) +static int tegra210_mixer_apply_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + bool instant_gain) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt); unsigned int reg = mc->reg, id; - bool instant_gain = false; int err; - if (strstr(kcontrol->id.name, "Instant Gain Volume")) - instant_gain = true; - /* Save gain value for specific MIXER input */ id = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) / TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE; + if (mixer->gain_value[id] == ucontrol->value.integer.value[0]) + return 0; + mixer->gain_value[id] = ucontrol->value.integer.value[0]; err = tegra210_mixer_configure_gain(cmpnt, id, instant_gain); @@ -221,6 +221,18 @@ static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol, return 1; } +static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return tegra210_mixer_apply_gain(kcontrol, ucontrol, false); +} + +static int tegra210_mixer_put_instant_gain(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return tegra210_mixer_apply_gain(kcontrol, ucontrol, true); +} + static int tegra210_mixer_set_audio_cif(struct tegra210_mixer *mixer, struct snd_pcm_hw_params *params, unsigned int reg, @@ -388,7 +400,7 @@ ADDER_CTRL_DECL(adder5, TEGRA210_MIXER_TX5_ADDER_CONFIG); SOC_SINGLE_EXT("RX" #id " Instant Gain Volume", \ MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \ 0x20000, 0, tegra210_mixer_get_gain, \ - tegra210_mixer_put_gain), + tegra210_mixer_put_instant_gain), /* Volume controls for all MIXER inputs */ static const struct snd_kcontrol_new tegra210_mixer_gain_ctls[] = { |