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If the 'snps,need-phy-for-wake' is set in the device tree then: - We know that we can wakeup, so call device_set_wakeup_capable(). The USB core will use this knowledge to enable wakeup by default. - We know that we should keep the PHY on during suspend if something on our root hub needs remote wakeup. This requires the patch (USB: Export usb_wakeup_enabled_descendants()). Note that we don't keep the PHY on at suspend time if it's not needed because it would be a power draw. If we later find some users of dwc2 that can support wakeup without keeping the PHY on we may want to add a way to call device_set_wakeup_capable() without keeping the PHY on at suspend time. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> |
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.. | ||
core_intr.c | ||
core.c | ||
core.h | ||
debug.h | ||
debugfs.c | ||
gadget.c | ||
hcd_ddma.c | ||
hcd_intr.c | ||
hcd_queue.c | ||
hcd.c | ||
hcd.h | ||
hw.h | ||
Kconfig | ||
Makefile | ||
params.c | ||
pci.c | ||
platform.c |