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由 Alexandre Courbot 提交于
Make sure gpiolib works internally with descriptors and (chip, offset) pairs instead of using the global integer namespace. This prepares the ground for the removal of the global gpio_desc[] array and the introduction of the descriptor-based GPIO API. Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com> Reviewed-by: NLinus Walleij <linus.walleij@linaro.org> [grant.likely: Squash in fix for link error when CONFIG_SYSFS=n] Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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