On Wed, Dec 11, 2013 at 3:32 AM, Alexandre Courbot <[email protected]> wrote:
> Some devices drivers make use of optional GPIO parameters. For such > drivers, it is important to discriminate between the case where no > GPIO mapping has been defined for the function they are requesting, and > the case where a mapping exists but an error occured while resolving it > or when acquiring the GPIO. > > This patch changes the family of gpiod_get() functions such that they > will return -ENOENT if and only if no GPIO mapping is defined for the > requested function. Other error codes are used when an actual error > occured during the GPIO resolution. > > Signed-off-by: Alexandre Courbot <[email protected]> > Reviewed-by: Andy Shevchenko <[email protected]> > --- > Changes since v2: > - Put string on a single line (thanks Andy!) > - Added Andy's reviewed-by Applied this v2 version with Mika's review tag. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
