MIPS: Alchemy: add gpio_request/gpio_free stubs for CONFIG_GPIOLIB=n
Some drivers use gpio_request/gpio_free regardless of whether gpiolib is actually built; add stubs to work around the ensuing compile failures. Signed-off-by: NManuel Lauss <manuel.lauss@gmail.com> Tested-by: NFlorian Fainelli <florian@openwrt.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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