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The GPIO Aggregator will need a method to forward a .set_config() call to its parent gpiochip. This requires obtaining the gpio_chip and offset for a given gpio_desc. While gpiod_to_chip() is public, gpio_chip_hwgpio() is not, so there is currently no method to obtain the needed GPIO offset parameter. Hence introduce a public gpiod_set_config() helper, which invokes the .set_config() callback through a gpio_desc pointer, like is done for most other gpio_chip callbacks. Rewrite the existing gpiod_set_debounce() helper as a wrapper around gpiod_set_config(), to avoid duplication. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200324135653.6676-5-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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