• Dmitry Torokhov's avatar
    gpio: return NULL from gpiod_get_optional when GPIOLIB is disabled · 22c40367
    Dmitry Torokhov authored
    Given the intent behind gpiod_get_optional() and friends it does not make
    sense to return -ENOSYS when GPIOLIB is disabled: the driver is expected to
    work just fine without gpio so let's behave as if gpio was not found.
    Otherwise we have to special-case -ENOSYS in drivers.
    
    Note that there was objection that someone might forget to enable GPIOLIB
    when dealing with a platform that has device that actually specifies
    optional gpio and we'll break it. I find this unconvincing as that would
    have to be the *only GPIO* in the system, which is extremely unlikely.
    Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
    Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
    22c40367
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