Hello,
I have a custom board that has two different codecs (AK4458 & AK5558) that are fed into the imx8mp evk board. They are dac and adc respectively.
I am able to record or play these chips with the evk board individually (loading a device tree that only has 1 codec enabled) but NOT simultaneously on the sai3.
I want to be able to simultaneously run both chips on the SAI3.
I have setup my own device tree that includes imx8mp-evk.dts as shown:
/dts-v1/;
#include "imx8mp-evk.dts"
/ {
/delete-node/sound-wm8960;
sound-ak4458 {
compatible = "fsl,imx-audio-ak4458";
model = "ak4458-audio";
audio-cpu = <&sai3>;
audio-codec = <&ak4458>;
fsl,tdm;
};
sound-ak5558_1 {
compatible = "fsl,imx-audio-ak5558";
model = "ak5558-mic1";
audio-cpu = <&sai3>;
audio-codec = <&ak5558_1>;
status = "okay";
fsl,tdm;
};
};
&i2c3 {
ak5558_1: ak5558@10 {
model = "ak5558-aif";
compatible = "asahi-kasei,ak5558";
reg = <0x10>;
};
ak4458: ak4458@12 {
compatible = "asahi-kasei,ak4458";
reg = <0x12>;
};
};
I've commented out these lines in the soc-core.c driver in order to load the codecs simultaneously. if i didn't comment out the code, it wont accept the second chip driver and would say the sound card is already in use.
static int soc_probe_component(struct snd_soc_card *card,
struct snd_soc_component *component)
{
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
struct snd_soc_dai *dai;
int ret;
if (!strcmp(component->name, "snd-soc-dummy"))
return 0;
/*
if (component->card) {
if (component->card != card) {
dev_err(component->dev,
"Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n",
card->name, component->card->name);
return -ENODEV;
}
return 0;
}
*/
While the two are shown in alsa (arecord -l and aplay -l) simultaneously, im only able to play out the ak4458 chip, however, when i record with the ak5558 chip, it runs but it hangs the system.
Is it possible to run these two different codecs on 1 sai?
**I have attempted to do a simple-audio-card setup in the device tree but so far the driver fails (coredump) if a second codec is loaded.
Thank you!
