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ASoC: rt1320-sdw: kcontrol for brown-out feature update

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Create a kcontrol to enable or disable brown-out dynamically.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://patch.msgid.link/20260409060102.4177554-1-jack.yu@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jack Yu
2026-04-09 14:01:01 +08:00
committed by Mark Brown
parent 833011cbe6
commit fbb1f8ba4e
2 changed files with 43 additions and 0 deletions
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42
sound/soc/codecs/rt1320-sdw.c
View File

@@ -2486,6 +2486,45 @@ static int rt1320_rae_update_put(struct snd_kcontrol *kcontrol,
return 0;
}
static int rt1320_brown_out_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct rt1320_sdw_priv *rt1320 = snd_soc_component_get_drvdata(component);
int ret, changed = 0;
if (!rt1320->hw_init)
return 0;
ret = pm_runtime_resume(component->dev);
if (ret < 0 && ret != -EACCES)
return ret;
if (rt1320->brown_out != ucontrol->value.integer.value[0]) {
changed = 1;
rt1320->brown_out = ucontrol->value.integer.value[0];
}
if (rt1320->brown_out == 0)
regmap_write(rt1320->regmap, 0xdb03, 0x00);
else
regmap_write(rt1320->regmap, 0xdb03, 0xf0);
return changed;
}
static int rt1320_brown_out_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct rt1320_sdw_priv *rt1320 = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = rt1320->brown_out;
return 0;
}
static int rt1320_r0_temperature_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@@ -2545,6 +2584,8 @@ static const struct snd_kcontrol_new rt1320_snd_controls[] = {
rt1320_r0_temperature_get, rt1320_r0_temperature_put),
SOC_SINGLE_EXT("RAE Update", SND_SOC_NOPM, 0, 1, 0,
rt1320_rae_update_get, rt1320_rae_update_put),
SOC_SINGLE_EXT("Brown Out Switch", SND_SOC_NOPM, 0, 1, 0,
rt1320_brown_out_get, rt1320_brown_out_put),
};
static const struct snd_kcontrol_new rt1320_spk_l_dac =
@@ -2904,6 +2945,7 @@ static int rt1320_sdw_init(struct device *dev, struct regmap *regmap,
rt1320->fu_dapm_mute = true;
rt1320->fu_mixer_mute[0] = rt1320->fu_mixer_mute[1] =
rt1320->fu_mixer_mute[2] = rt1320->fu_mixer_mute[3] = true;
rt1320->brown_out = 1;
INIT_WORK(&rt1320->load_dspfw_work, rt1320_load_dspfw_work);

1
sound/soc/codecs/rt1320-sdw.h
View File

@@ -159,6 +159,7 @@ struct rt1320_sdw_priv {
bool hw_init;
bool first_hw_init;
int version_id;
int brown_out;
unsigned int dev_id;
bool fu_dapm_mute;
bool fu_mixer_mute[4];