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Currently the driver don't support pm_ops. These ops are not necessary if the supply isn't switchable (always on). This assumptions seems to be wrong because no one needs a powered hub during suspend-to-ram/disk. So adding simple_dev_pm_ops to be able to switch off the hub during suspend and to restore the config after a resume operation. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20190917144449.32739-5-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>