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By adding a card state that records if it is suspended or resumed, we can accept asyncronus suspend/resume requests for the mmc and sd bus_ops. MMC_CAP_AGGRESSIVE_PM, will at request inactivity through the runtime bus_ops callbacks, execute a suspend of the the card. In the state were this has been done, we can receive a suspend request for the mmc bus, which for sd and mmc forced the card to active state by a pm_runtime_get_sync. In other words, the card was resumed and then immediately suspended again, completely unnecessary. Since the suspend/resume bus_ops callbacks for sd and mmc are now capable of handling asynchronous requests, we no longer need to force the card to active state before executing suspend. Evidently preventing the above sequence for MMC_CAP_AGGRESSIVE_PM. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org> |
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