ASoC: rt5645: make volume TLV closer to reality
The volume blocks have an step of 0.375dB, but TLV uses 0.01dB for
units. Only use the resolution supported, ignoring the LSB of the
volume register. This results in half the steps and 0.75dB per step,
but reports accurate levels through TLV.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 605601e..7996c9c 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -417,9 +417,9 @@
}
static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -4650, 150, 0);
-static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -65625, 375, 0);
+static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -6525, 75, 0);
static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0);
-static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -17625, 375, 0);
+static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -1725, 75, 0);
static const DECLARE_TLV_DB_SCALE(adc_bst_tlv, 0, 1200, 0);
/* {0, +20, +24, +30, +35, +40, +44, +50, +52} dB */
@@ -459,9 +459,9 @@
SOC_DOUBLE("DAC2 Playback Switch", RT5645_DAC_CTRL,
RT5645_M_DAC_L2_VOL_SFT, RT5645_M_DAC_R2_VOL_SFT, 1, 1),
SOC_DOUBLE_TLV("DAC1 Playback Volume", RT5645_DAC1_DIG_VOL,
- RT5645_L_VOL_SFT, RT5645_R_VOL_SFT, 175, 0, dac_vol_tlv),
+ RT5645_L_VOL_SFT + 1, RT5645_R_VOL_SFT + 1, 87, 0, dac_vol_tlv),
SOC_DOUBLE_TLV("Mono DAC Playback Volume", RT5645_DAC2_DIG_VOL,
- RT5645_L_VOL_SFT, RT5645_R_VOL_SFT, 175, 0, dac_vol_tlv),
+ RT5645_L_VOL_SFT + 1, RT5645_R_VOL_SFT + 1, 87, 0, dac_vol_tlv),
/* IN1/IN2 Control */
SOC_SINGLE_TLV("IN1 Boost", RT5645_IN1_CTRL1,
@@ -477,11 +477,11 @@
SOC_DOUBLE("ADC Capture Switch", RT5645_STO1_ADC_DIG_VOL,
RT5645_L_MUTE_SFT, RT5645_R_MUTE_SFT, 1, 1),
SOC_DOUBLE_TLV("ADC Capture Volume", RT5645_STO1_ADC_DIG_VOL,
- RT5645_L_VOL_SFT, RT5645_R_VOL_SFT, 127, 0, adc_vol_tlv),
+ RT5645_L_VOL_SFT + 1, RT5645_R_VOL_SFT + 1, 63, 0, adc_vol_tlv),
SOC_DOUBLE("Mono ADC Capture Switch", RT5645_MONO_ADC_DIG_VOL,
RT5645_L_MUTE_SFT, RT5645_R_MUTE_SFT, 1, 1),
SOC_DOUBLE_TLV("Mono ADC Capture Volume", RT5645_MONO_ADC_DIG_VOL,
- RT5645_L_VOL_SFT, RT5645_R_VOL_SFT, 127, 0, adc_vol_tlv),
+ RT5645_L_VOL_SFT + 1, RT5645_R_VOL_SFT + 1, 63, 0, adc_vol_tlv),
/* ADC Boost Volume Control */
SOC_DOUBLE_TLV("STO1 ADC Boost Gain", RT5645_ADC_BST_VOL1,