6.6-stable review patch. If anyone has any objections, please let me know.
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From: Christophe Leroy christophe.leroy@csgroup.eu
[ Upstream commit 6370a996f308ea3276030769b7482b346e7cc7c1 ]
The gain ranges specified in Renesas IDT821034 codec documentation are [-3dB;+13dB] in the transmit path (ADC) and [-13dB;+3dB] in the receive path (DAC). Allthough the registers allow programming values outside those ranges, the signal S/N and distorsion are only guaranteed in the specified ranges.
Set ranges to the specified ones.
Fixes: e51166990e81 ("ASoC: codecs: Add support for the Renesas IDT821034 codec") Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Link: https://patch.msgid.link/2bd547194f3398e6182f770d7d6be711c702b4b2.1760029099... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/idt821034.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/idt821034.c b/sound/soc/codecs/idt821034.c index 2cc7b9166e695..068a5448e273e 100644 --- a/sound/soc/codecs/idt821034.c +++ b/sound/soc/codecs/idt821034.c @@ -548,14 +548,14 @@ static int idt821034_kctrl_mute_put(struct snd_kcontrol *kcontrol, return ret; }
-static const DECLARE_TLV_DB_LINEAR(idt821034_gain_in, -6520, 1306); -#define IDT821034_GAIN_IN_MIN_RAW 1 /* -65.20 dB -> 10^(-65.2/20.0) * 1820 = 1 */ -#define IDT821034_GAIN_IN_MAX_RAW 8191 /* 13.06 dB -> 10^(13.06/20.0) * 1820 = 8191 */ +static const DECLARE_TLV_DB_LINEAR(idt821034_gain_in, -300, 1300); +#define IDT821034_GAIN_IN_MIN_RAW 1288 /* -3.0 dB -> 10^(-3.0/20.0) * 1820 = 1288 */ +#define IDT821034_GAIN_IN_MAX_RAW 8130 /* 13.0 dB -> 10^(13.0/20.0) * 1820 = 8130 */ #define IDT821034_GAIN_IN_INIT_RAW 1820 /* 0dB -> 10^(0/20) * 1820 = 1820 */
-static const DECLARE_TLV_DB_LINEAR(idt821034_gain_out, -6798, 1029); -#define IDT821034_GAIN_OUT_MIN_RAW 1 /* -67.98 dB -> 10^(-67.98/20.0) * 2506 = 1*/ -#define IDT821034_GAIN_OUT_MAX_RAW 8191 /* 10.29 dB -> 10^(10.29/20.0) * 2506 = 8191 */ +static const DECLARE_TLV_DB_LINEAR(idt821034_gain_out, -1300, 300); +#define IDT821034_GAIN_OUT_MIN_RAW 561 /* -13.0 dB -> 10^(-13.0/20.0) * 2506 = 561 */ +#define IDT821034_GAIN_OUT_MAX_RAW 3540 /* 3.0 dB -> 10^(3.0/20.0) * 2506 = 3540 */ #define IDT821034_GAIN_OUT_INIT_RAW 2506 /* 0dB -> 10^(0/20) * 2506 = 2506 */
static const struct snd_kcontrol_new idt821034_controls[] = {