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    SubjectRe: [GIT PULL] omap changes for v2.6.39 merge window
    On Fri, Apr 01, 2011 at 03:54:47PM -0400, Nicolas Pitre wrote:

    > 1) GPIO drivers

    > As Linus observed, in the majority of the cases GPIOs are accessed
    > through simple memory-mapped registers. Some have absolute state
    > registers, the others have separate clear/set registers. Suffice to
    > create two generic GPIO drivers each covering those two common cases,
    > and those generic drivers would simply register with the higher level
    > gpiolib code, and all the board code would have to do is to provide
    > the data for those GPIOs (register offsets, number of GPIOs, etc.).
    > Whether this data eventually comes from DT is an orthogonal issue.

    For this case we actually already have the basic_mmio_gpio driver in
    tree, we should be pushing for wider usage of that.


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