Hi
Now I need two channel audio .So I used two tlv320aic32 codec chip,which one is connected to ti816x mcasp0,and anther is connected to ti816x mcasp1.
This is snd_soc_dai_link
static struct snd_soc_dai_link ti81xx_mcasp_dai[] = {
{
.name = "TLV320AIC3X0",
.stream_name = "AIC3X0",
.cpu_dai_name= "davinci-mcasp.0",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.1-0018",
.platform_name = "davinci-pcm-audio",
.init = ti81xx_evm_aic3x_init,
.ops = &ti81xx_evm_ops,
},
{
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name= "davinci-mcasp.1",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.2-0018",
.platform_name = "davinci-pcm-audio",
.init = ti81xx_evm_aic3x_init,
.ops = &ti81xx_evm_ops,
},
#ifdef CONFIG_SND_SOC_TI81XX_HDMI
{
.name = "HDMI_SOC_LINK",
.stream_name = "hdmi",
.cpu_dai_name = "hdmi-dai",
.platform_name = "davinci-pcm-audio",
.codec_dai_name = "HDMI-DAI-CODEC", /* DAI name */
.codec_name = "hdmi-dummy-codec",
},
};
When the kernel is loaded.It will have some problem,it is the dmesg
asoc: tlv320aic3x-hifi <-> davinci-mcasp.0 mapping ok
tlv320aic3x-codec 2-0018: tlv320aic3x-codec.2-0018: Failed to add PCM Playback Volume: -16
asoc: failed to add dapm kcontrol Right HPCOM Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Left HPCOM Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Right HP Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Left HP Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Mono Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Right Line Mixer Line2L Bypass Switch: -16
asoc: failed to add dapm kcontrol Left Line Mixer Line2L Bypass Switch: -16
asoc: failed to add kcontrol Right Line2R Mux
asoc: failed to add kcontrol Right Line1R Mux
asoc: failed to add kcontrol Right Line1L Mux
asoc: failed to add dapm kcontrol Right PGA Mixer Line1R Switch: -16
asoc: failed to add kcontrol Left Line2L Mux
asoc: failed to add kcontrol Left Line1R Mux
asoc: failed to add kcontrol Left Line1L Mux
asoc: failed to add dapm kcontrol Left PGA Mixer Line1L Switch: -16
asoc: failed to add kcontrol Right HPCOM Mux
asoc: failed to add kcontrol Right DAC Mux
asoc: failed to add kcontrol Left HPCOM Mux
asoc: failed to add kcontrol Left DAC Mux
asoc: tlv320aic3x-hifi <-> davinci-mcasp.1 mapping ok
asoc: HDMI-DAI-CODEC <-> hdmi-dai mapping ok
This is my audio card device file.
root@dm816x:~# ls -l /dev/snd/
/dev/snd/controlC0 /dev/snd/pcmC0D0p /dev/snd/pcmC0D1p /dev/snd/timer
/dev/snd/pcmC0D0c /dev/snd/pcmC0D1c /dev/snd/pcmC0D2p
Now the two audio channel can work.But I don't know the what is the failed message and how to remove
Thanks
