Hi,
I am working with iMX8MM EVK and Yocto distribution 4.19.35 version
Build Configuration:
BB_VERSION = "1.42.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "ubuntu-16.04"
TARGET_SYS = "aarch64-poky-linux"
MACHINE = "imx8mmevk"
DISTRO = "fsl-imx-xwayland"
DISTRO_VERSION = "4.19-warrior"
TUNE_FEATURES = "aarch64"
TARGET_FPU = ""
we have interfaced another SoC to iMX8MM EVK using i2c interface. this SoC contains a voice audio codec.
we have developed a ASOC machine driver for this scenario, i am evaluating the same and having some issues.
I feel it is better to have a look at any reference machine driver for this kind will help me in solving the issues i am facing.
I would like to look at any reference of similar kind of audio codec which is part of SoC and interfaced to iMX8MM or any iMX family of processors through any interface will help my purpose.
could you please point me to any of such kind in kernel.
Thank you,
Sreedhar
Solved! Go to Solution.
Hi Sreedhar
for such case one can consider simple-audio-card:
Best regards
igor
Hi Sreedhar
one can look at description in Chapter 7 Audio sect.7.1 Advanced Linux Sound
Architecture (ALSA) System on a Chip (ASoC) Sound in i.MX Linux Reference Manual
and all linux documentation on
Embedded Linux for i.MX Applications Processors | NXP
Best regards
igor
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Hi igor,
Thank you for the quick reply. I knew and read this documentation.
Our interface is iMX8MM SAI (I2S) <====> Another SoC(I2S) interface, It is a Voice based Processing Chip.
There is no codec here. Does NXP platforms of any has such interface and possibly drivers for these, that can help me as a reference.
Thank you once again,
Sreedhar
Thank you igor,
I will check the simple audio card, I found a driver imx-dsp.c (Machine driver for Tensilica DSP)
sound/soc/fsl/imx-dsp.c
I will check both, that should help me.
Thanks once again,
Sreedhar