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

From	Lukas Wunner <lukas@wunner.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH] ACPI / GED: use late init to allow other drivers init
Date	2017-04-25 09:10 +0200
Message-ID	<tA2LM-1un-15@gated-at.bofh.it> (permalink)
References	<tyPdU-31Y-5@gated-at.bofh.it> <tyPxf-38u-3@gated-at.bofh.it> <tyPxf-38u-1@gated-at.bofh.it> <tzVhg-4Us-19@gated-at.bofh.it> <tzVKi-55i-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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

Thread

[PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-22 00:30 +0200
  Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-22 00:50 +0200
    Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-22 00:50 +0200
    Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-25 01:10 +0200
      Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-25 01:40 +0200
        Re: [PATCH] ACPI / GED: use late init to allow other drivers init Lukas Wunner <lukas@wunner.de> - 2017-04-25 09:10 +0200
          Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-25 18:30 +0200
            Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-28 04:40 +0200
              Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-05-11 03:10 +0200
                Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-05-11 03:50 +0200
            Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-05-11 03:00 +0200
              Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-05-11 15:50 +0200
                Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-05-11 17:10 +0200
      Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-25 03:50 +0200
        Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-25 13:10 +0200
          Re: [PATCH] ACPI / GED: use late init to allow other drivers init Sinan Kaya <okaya@codeaurora.org> - 2017-04-25 18:30 +0200
  Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Rafael J. Wysocki" <rafael@kernel.org> - 2017-04-22 00:50 +0200
  Re: [PATCH] ACPI / GED: use late init to allow other drivers init "Baicar, Tyler" <tbaicar@codeaurora.org> - 2017-04-25 01:00 +0200

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