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The reset GPIO is obtained during driver probing by the function devm_gpiod_get_optional, which means the GPIO will be automatically freed when the device is removed. Because of this, explicit call to free the reset GPIO in hub remove function is not needed. To support the Managed device resources, the DEVRES config must be enabled, otherwise the devres functions fall back to non-managed variants. Set the necessary dependency to DEVRES in Kconfig. Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de> Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>