In the reset state of the codec we do not have complete playback or capture
routes.
The audio playback/capture will not work due to missing clock signals on
the I2S bus if PLL, MDAC/NDAC/DAC MADC/NADC/ADC is powered down.
To make sure that even if all output/input is disconnected the codec is
generating clocks, we need to have valid DAPM route in every case to power
up the must needed parts of the codec.
I have verified that switching DAC (during playback) or ADC (during
capture) will stop the I2S clocks, so the only solution is to connect the
'Off' routes as well to output/input.
Tested on am43x-epos-evm with aic3111 codec in master mode.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
sound/soc/codecs/tlv320aic31xx.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 858cb8be445f..d42a23eb916e 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -586,9 +586,11 @@ common31xx_audio_map[] = {
{"DAC Left Input", "Left Data", "DAC IN"},
{"DAC Left Input", "Right Data", "DAC IN"},
{"DAC Left Input", "Mono", "DAC IN"},
+ {"DAC Left Input", "Off", "DAC IN"},
{"DAC Right Input", "Left Data", "DAC IN"},
{"DAC Right Input", "Right Data", "DAC IN"},
{"DAC Right Input", "Mono", "DAC IN"},
+ {"DAC Right Input", "Off", "DAC IN"},
{"DAC Left", NULL, "DAC Left Input"},
{"DAC Right", NULL, "DAC Right Input"},
@@ -601,6 +603,9 @@ common31xx_audio_map[] = {
{"HP Right", "Switch", "Output Right"},
{"HPR Driver", NULL, "HP Right"},
{"HPR", NULL, "HPR Driver"},
+
+ {"HPL", NULL, "DAC Left"},
+ {"HPR", NULL, "DAC Right"},
};
static const struct snd_soc_dapm_route
@@ -621,16 +626,20 @@ aic31xx_audio_map[] = {
{"MIC1LP P-Terminal", "FFR 10 Ohm", "MIC1LP"},
{"MIC1LP P-Terminal", "FFR 20 Ohm", "MIC1LP"},
{"MIC1LP P-Terminal", "FFR 40 Ohm", "MIC1LP"},
+ {"MIC1LP P-Terminal", "Off", "MIC1LP"},
{"MIC1RP P-Terminal", "FFR 10 Ohm", "MIC1RP"},
{"MIC1RP P-Terminal", "FFR 20 Ohm", "MIC1RP"},
{"MIC1RP P-Terminal", "FFR 40 Ohm", "MIC1RP"},
+ {"MIC1RP P-Terminal", "Off", "MIC1RP"},
{"MIC1LM P-Terminal", "FFR 10 Ohm", "MIC1LM"},
{"MIC1LM P-Terminal", "FFR 20 Ohm", "MIC1LM"},
{"MIC1LM P-Terminal", "FFR 40 Ohm", "MIC1LM"},
+ {"MIC1LM P-Terminal", "Off", "MIC1LM"},
{"MIC1LM M-Terminal", "FFR 10 Ohm", "MIC1LM"},
{"MIC1LM M-Terminal", "FFR 20 Ohm", "MIC1LM"},
{"MIC1LM M-Terminal", "FFR 40 Ohm", "MIC1LM"},
+ {"MIC1LM M-Terminal", "Off", "MIC1LM"},
{"MIC_GAIN_CTL", NULL, "MIC1LP P-Terminal"},
{"MIC_GAIN_CTL", NULL, "MIC1RP P-Terminal"},
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
