• Linus Walleij's avatar
    gpio: remove deps on ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB · 296ad4ac
    Linus Walleij authored
    The GPIOLIB symbol currently require that
    ARCH_WANT_OPTIONAL_GPIOLIB or ARCH_REQUIRE_GPIOLIB is selected
    to be selectable.
    
    The ARCH_REQUIRE_GPIOLIB does only one thing: select GPIOLIB.
    
    This is just confusing: architectures that want GPIOLIB should
    be able to configure it in no matter what, and those who
    require it should just select GPIOLIB.
    
    It also creates problems for drivers that need to state
    "select GPIOLIB" to get dependencies: those depend on the
    selected architecture to select
    ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB first, and will cause
    compile errors for the few archs that state neither.
    
    These intermediary symbols need to go.
    
    As a first step, remove the dependencies so that:
    
    - ARCH_WANT_OPTIONAL_GPIOLIB becomes a noop (GPIOLIB will be
      available for everyone) and
    
    - "select ARCH_REQUIRE_GPIOLIB" can be replaced by just
      "select GPIOLIB"
    
    After this patch we can follow up with patches cleaning up the
    architectures one-by one and eventually remove the
    ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB symbols altogether.
    Reported-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
    Cc: Michael Büsch <m@bues.ch>
    Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
    296ad4ac
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