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There are GPIO controllers such as the one present in the LX2160ARDB QIXIS FPGA which have fixed-direction input and output GPIO lines mixed together in a single register. This cannot be modeled using the gpio-regmap as-is since there is no way to present the true direction of a GPIO line. In order to make this use case possible, add a new configuration parameter - fixed_direction_output - into the gpio_regmap_config structure. This will enable user drivers to provide a bitmap that represents the fixed direction of the GPIO lines. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Michael Walle <mwalle@kernel.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> |
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