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    SubjectRe: [PATCH] regmap-irq: allow auto-allocated IRQs to be mapped
    On Wed, Aug 01, 2012 at 07:05:15PM +0100, Anthony Olech wrote:

    > if the irq_base is set to -1 when calling regmap_add_irq_chip()
    > then allow the IRQ to be mapped even if the allocated irq_base
    > is actually zero.

    > This restores the behaviour seen in v3.4, and I assume that the
    > tidy-ups just made in v3.5 INADVERTENTLY introduce this change
    > in behaviour.

    Please pay MORE attention to the changelog - obviously there's no
    problem mapping automatically allocated IRQs, there's only any effect if
    they happen to GET allocated at zero.

    The only real issue I see with the current code is that if the user
    explicitly wants to statically allocate an IRQ range at zero they can't.
    The current intended behaviour is that we use a linear domain unless a
    positive IRQ base is specified, though we're not quite doing that right
    now as a transitional measure until drivers are updated.

    The current da9052 driver usage seems to have quite a few problems, I do
    recall having to fix some problems that make me doubt if it ever worked
    well. Looking at the code now I see it's using hard coded references to
    absolute IRQ numbers which is an issue... It should be being converted
    to use regmap_irq_get_virq().

     \ /
      Last update: 2012-08-04 15:41    [W:0.062 / U:0.636 seconds]
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