API between modules

Hi, I have two kernel modules that need to talk over an API, and right now, they are statically linked together, but I am looking for a better way to separate them and share an API between them. A few years ago, I did the HDA component: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/sou... Using the component API: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/inc... Are there other ways for a module to wait for another module to load and use its API? Is there a default way to do that? I know that with MFD devices, you can have children, but that's not the case. My modules are not related in that way. Thanks Lucas