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usb: dwc2: add bus suspend/resume for dwc2
Hcd controller needs bus_suspend/resume, dwc2 controller make root hub generate suspend/resume signal with hprt0 register when work in host mode. After the root hub enter suspend, we can make controller enter low power state with PCGCTL register. We also update the lx_state for hsotg state. This patch has tested on rk3288 with suspend/resume. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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Kever Yang
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Felipe Balbi
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Nov 12, 2014
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