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    SubjectRe: [PATCH 01/12] regulator: gpio-regulator: Demote GPIO Regulator driver to start later
    On Mon, 10 Dec 2012, Mark Brown wrote:

    > On Mon, Dec 10, 2012 at 08:55:50AM +0000, Lee Jones wrote:
    >
    > > The normal course of action would be to defer the MMCI driver too,
    > > but these IOS level-shifter regulators aren't present on all
    > > platforms, so deferring until one is found would be incorrect.
    >
    > > So the best solution is to demote the GPIO Regulator driver, so
    > > it starts later than the TC35892 GPIO controller, which is also
    > > configured to start at subsys_initcall() time, but before deferred
    > > probing time, which starts at late_initcall(), after many of the
    > > drivers requiring these regulators would have already started.
    >
    > This really isn't a good solution, especially not for a system that's DT
    > based - on a DT system we can tell if there should be a GPIO present so
    > we should be able to defer only when there's something that might
    > provide the GPIO later on.

    Understood, but what's the solution for non-DT systems?

    --
    Lee Jones
    Linaro ST-Ericsson Landing Team Lead
    Linaro.org │ Open source software for ARM SoCs
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