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As the first step in removing the fields specific to the gpio-mmio module from struct gpio_chip, we introduce a new set of generic GPIO chip interfaces that are meant to replace the existing bgpio_ ones. The new initialization function - gpio_generic_chip_init() - takes a configuration structure as argument instead of 9 separate parameters. This will allow easy extension if needed in the future. We hide the locking details behind a set of helpers in order to be able to move the raw spinlock out of struct gpio_chip without the users noticing. For now, the new APIs just wrap the existing ones. Once all users have been converted to the new interfaces, we'll pull them into gpio-mmio and implement them in a backward-compatible way while also moving all fields specific to the generic GPIO chip into struct gpio_generic_chip. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-1-6b77aab684d8@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> |
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