@@ -742,6 +742,14 @@ static int rt5645_spk_put_volsw(struct snd_kcontrol *kcontrol,
return ret;
}
+static const char * const rt5645_dac1_vol_ctrl_mode_text[] = {
+ "immediately", "zero crossing", "soft ramp"
+};
+
+static SOC_ENUM_SINGLE_DECL(
+ rt5645_dac1_vol_ctrl_mode, RT5645_PR_BASE,
+ RT5645_DA1_ZDET_SFT, rt5645_dac1_vol_ctrl_mode_text);
+
static const struct snd_kcontrol_new rt5645_snd_controls[] = {
/* Speaker Output Volume */
SOC_DOUBLE("Speaker Channel Switch", RT5645_SPK_VOL,
@@ -808,6 +816,9 @@ static const struct snd_kcontrol_new rt5645_snd_controls[] = {
SOC_SINGLE("I2S2 Func Switch", RT5645_GPIO_CTRL1, RT5645_I2S2_SEL_SFT,
1, 1),
RT5645_HWEQ("Speaker HWEQ"),
+
+ /* Digital Soft Volume Control */
+ SOC_ENUM("DAC1 Digital Volume Control Func", rt5645_dac1_vol_ctrl_mode),
};
/**
@@ -2018,6 +2018,9 @@
/* Codec Private Register definition */
+/* DAC ADC Digital Volume (0x00) */
+#define RT5645_DA1_ZDET_SFT 6
+
/* 3D Speaker Control (0x63) */
#define RT5645_3D_SPK_MASK (0x1 << 15)
#define RT5645_3D_SPK_SFT 15
This patch add an alsa control for DAC1 digital volume control function selection. The options are: 0: Gain update immediately 1: Gain update when a zero crossing 2: Gain update when a zero crossing with a soft ramp Signed-off-by: Bard Liao <bardliao@realtek.com> --- v2 * Use SOC_ENUM --- sound/soc/codecs/rt5645.c | 11 +++++++++++ sound/soc/codecs/rt5645.h | 3 +++ 2 files changed, 14 insertions(+)