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ASoC: tlv320aic32x4: Fix MICPGA input configuration 

Currently the Negative Terminal Input Routing Configuration is only set
when there is a special routing configuration. If we don't use one of
the inputs IN1 or IN2 as negative terminal input, the PGA and recording
does not work.

This patch adds a route from CM1L/CM1R to the PGA as negative input by
default. With this configuration the PGA can amplify all input signals
and line-in/mic works again.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Markus Pargmann 2014-01-27 13:03:06 +01:00 committed by Mark Brown
parent b44aa40f87
commit 609e6025b8
2 changed files with 8 additions and 4 deletions
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10
sound/soc/codecs/tlv320aic32x4.c
View File

@ -618,12 +618,14 @@ static int aic32x4_probe(struct snd_soc_codec *codec)
snd_soc_write(codec, AIC32X4_CMMODE, tmp_reg);
/* Mic PGA routing */
if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K) {
if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K)
snd_soc_write(codec, AIC32X4_LMICPGANIN, AIC32X4_LMICPGANIN_IN2R_10K);
}
if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K) {
else
snd_soc_write(codec, AIC32X4_LMICPGANIN, AIC32X4_LMICPGANIN_CM1L_10K);
if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K)
snd_soc_write(codec, AIC32X4_RMICPGANIN, AIC32X4_RMICPGANIN_IN1L_10K);
}
else
snd_soc_write(codec, AIC32X4_RMICPGANIN, AIC32X4_RMICPGANIN_CM1R_10K);
aic32x4_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

2
sound/soc/codecs/tlv320aic32x4.h
View File

@ -120,7 +120,9 @@
#define AIC32X4_MICBIAS_2075V 0x60
#define AIC32X4_LMICPGANIN_IN2R_10K 0x10
#define AIC32X4_LMICPGANIN_CM1L_10K 0x40
#define AIC32X4_RMICPGANIN_IN1L_10K 0x10
#define AIC32X4_RMICPGANIN_CM1R_10K 0x40
#define AIC32X4_LMICPGAVOL_NOGAIN 0x80
#define AIC32X4_RMICPGAVOL_NOGAIN 0x80