Re: [PATCH] ACPI / GED: use late init to allow other drivers init

[Lukas Wunner <lukas@wunner.de>]

On Sat, Apr 22, 2017 at 12:48 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 4/21/2017 6:43 PM, Rafael J. Wysocki wrote:
> > +late_initcall(ged_init);
> > Does this fix the problem?
> >
> > What about if the module in question is loaded after running
> > late_initcalls?
>
> This fixed the issue for me where I had dependencies for QUP I2C driver
> and GHES drivers. Both of them are modules and get probed via normal
> module execution path.
>
> However, I'm open to improvements.  Do you have a better suggestion?
> I can try to add some _DEP stuff if it is present, but I remember Linux
> doesn't like _DEP stuff too much.

Would it be possible to solve this by just returning -EPROBE_DEFER from the
->probe hook if the devices you depend on are not bound yet?

Alternatively, would it be possible to solve it with a struct device_link?

Thanks,

Lukas