Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support

From	Ulf Hansson <ulf.hansson@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support
Date	2016-09-09 16:20 +0200
Message-ID	<sfuOS-3Q2-23@gated-at.bofh.it> (permalink)
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On 9 September 2016 at 14:06, Mark Brown <broonie@kernel.org> wrote:
> On Fri, Sep 09, 2016 at 10:25:30AM +0200, Ulf Hansson wrote:
>
>> BTW, as I am mostly working on DT based platforms, I guess we would
>> later on need to discuss with the DT maintainers how to describe
>> device links.
>
> I think the expectation had been that since DT tends to get right down
> to the hardware details we already have the information in there in
> order to use things so the problem becomes figuring out how/when we
> parse the existing bindings to tell the driver core about links.

I guess what we need from a functional point of view, is to be able to
first initialize all devices (device_initialize()) then add the
relevant device links before we add the devices (device_add()). That
seems like a piece of cake to fix. :-)

Kind regards
Uffe

Thread

[RFC/RFT][PATCH v2 0/7] Functional dependencies between devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
  [RFC/RFT][PATCH v2 7/7] PM / runtime: Optimize the use of device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
  [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep transitions in progress "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
    Re: [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep  transitions in progress Lukas Wunner <lukas@wunner.de> - 2016-09-12 16:10 +0200
      Re: [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep transitions in progress "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-12 23:20 +0200
        Re: [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep  transitions in progress Lukas Wunner <lukas@wunner.de> - 2016-09-13 01:00 +0200
        Re: [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep  transitions in progress Marek Szyprowski <m.szyprowski@samsung.com> - 2016-09-13 09:30 +0200
          Re: [RFC/RFT][PATCH v2 5/7] PM / runtime: Flag to indicate PM sleep transitions in progress "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 02:00 +0200
  [RFC/RFT][PATCH v2 4/7] PM / runtime: Pass flags argument to __pm_runtime_disable() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
  Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
  [RFC/RFT][PATCH v2 1/7] driver core: Add a wrapper around __device_release_driver() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
  [RFC/RFT][PATCH v2 3/7] PM / sleep: Make async suspend/resume of devices use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
    Re: [RFC/RFT][PATCH v2 3/7] PM / sleep: Make async suspend/resume of  devices use device links Lukas Wunner <lukas@wunner.de> - 2016-09-10 15:40 +0200
      Re: [RFC/RFT][PATCH v2 3/7] PM / sleep: Make async suspend/resume of  devices use device links "Rafael J. Wysocki" <rafael@kernel.org> - 2016-09-11 00:20 +0200
  [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
    Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Ulf Hansson <ulf.hansson@linaro.org> - 2016-09-09 10:30 +0200
      Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Mark Brown <broonie@kernel.org> - 2016-09-09 14:10 +0200
        Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Ulf Hansson <ulf.hansson@linaro.org> - 2016-09-09 16:20 +0200
      Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-15 03:10 +0200
    Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Lukas Wunner <lukas@wunner.de> - 2016-09-11 15:50 +0200
      Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Lukas Wunner <lukas@wunner.de> - 2016-09-11 22:50 +0200
        Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 03:20 +0200
          Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies  tracking support Lukas Wunner <lukas@wunner.de> - 2016-09-14 10:30 +0200
            Re: [RFC/RFT][PATCH v2 2/7] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 15:20 +0200
  [RFC/RFT][PATCH v2 6/7] PM / runtime: Use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-08 23:30 +0200
    Re: [RFC/RFT][PATCH v2 6/7] PM / runtime: Use device links Lukas Wunner <lukas@wunner.de> - 2016-09-12 11:50 +0200
      Re: [RFC/RFT][PATCH v2 6/7] PM / runtime: Use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-12 16:00 +0200
        Re: [RFC/RFT][PATCH v2 6/7] PM / runtime: Use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 03:20 +0200
  Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices Lukas Wunner <lukas@wunner.de> - 2016-09-10 13:40 +0200
    Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices "Rafael J. Wysocki" <rafael@kernel.org> - 2016-09-11 00:10 +0200
      Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices Lukas Wunner <lukas@wunner.de> - 2016-09-13 20:00 +0200
        Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 01:20 +0200
          Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices Lukas Wunner <lukas@wunner.de> - 2016-09-18 14:40 +0200
  Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices Marek Szyprowski <m.szyprowski@samsung.com> - 2016-09-13 12:00 +0200
    Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 00:40 +0200
      Re: [RFC/RFT][PATCH v2 0/7] Functional dependencies between devices Lukas Wunner <lukas@wunner.de> - 2016-09-18 13:30 +0200
  [RFC/RFT][PATCH v3 5/5] PM / runtime: Optimize the use of device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
  [Resend][RFC/RFT][PATCH v3 1/5] driver core: Add a wrapper around __device_release_driver() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
  [RFC/RFT][PATCH v3 2/5] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
    Re: [RFC/RFT][PATCH v3 2/5] driver core: Functional dependencies  tracking support Marek Szyprowski <m.szyprowski@samsung.com> - 2016-09-16 10:00 +0200
      Re: [RFC/RFT][PATCH v3 2/5] driver core: Functional dependencies  tracking support "Rafael J. Wysocki" <rafael@kernel.org> - 2016-09-16 14:10 +0200
    [Update][RFC/RFT][PATCH v3 2/5] driver core: Functional dependencies tracking support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 14:30 +0200
      Re: [Update][RFC/RFT][PATCH v3 2/5] driver core: Functional  dependencies tracking support Lukas Wunner <lukas@wunner.de> - 2016-09-20 00:50 +0200
  [RFC/RFT][PATCH v3 3/5] PM / sleep: Make async suspend/resume of devices use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
  [RFC/RFT][PATCH v3 0/5] Functional dependencies between devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
    [RFC/RFT][PATCH v3 4/5] PM / runtime: Use device links "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-16 00:10 +0200
    Re: [RFC/RFT][PATCH v3 0/5] Functional dependencies between devices Marek Szyprowski <m.szyprowski@samsung.com> - 2016-09-16 09:30 +0200
      Re: [RFC/RFT][PATCH v3 0/5] Functional dependencies between devices Marek Szyprowski <m.szyprowski@samsung.com> - 2016-09-16 10:00 +0200
        Re: [RFC/RFT][PATCH v3 0/5] Functional dependencies between devices "Rafael J. Wysocki" <rafael@kernel.org> - 2016-09-16 14:10 +0200

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