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    SubjectRe: gpiolib and sleeping gpios
    Hi Ryan,

    On Fri, Jun 18, 2010 at 09:47:59AM +1200, Ryan Mallon wrote:
    > Then all drivers can just call gpio_(set/get)_value and any attempts to
    > use sleeping gpios from an non-sleeping context will be caught by the
    > might_sleep_if check. Is there something I am missing about this?
    The downside is that you change the semantic of gpio_get_value (and
    gpio_set_value I assume?). But as calling gpio_get_value with a gpio
    that gpio_cansleep() is an error anyhow, so I think that's OK. The big
    pro is that the API is simplified.

    > I can prepare a patch which combines the non-sleeping and sleeping
    > variants, but I wanted to check that I'm not missing something
    > fundamental first.
    I will happily look at such a patch and give my comments.

    Best regards

    Pengutronix e.K. | Uwe Kleine-König |
    Industrial Linux Solutions | |
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