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    SubjectRe: [PATCH 1/4 resend] [x86] Add generic GPIO support to x86
    Date
    On Friday 22 February 2008, Anton Vorontsov wrote:
    > > +static inline int gpio_request(unsigned gpio, const char *label)
    > > +{
    > > +     return -EINVAL;
    >
    > Could we return -ENOSYS instead, so drivers will able to distinguish
    > between "something really failed" and "there is no gpio support,
    > fallback to other methods"? Without this, the notorious NAND driver
    > will hardly benefit from this change. ;-)

    Sure; that'll be gpio_request() and the gpio_direction_*() calls only
    though, since those are the initial setup calls drivers make.

    - Dave

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