usb: dwc3: core: Fix broken system suspend/resume on AM437x
On TI's AM437x, the DWC3 controller looses state after a system suspend/resume. We are re-initializing the controller but we miss restoring the PRTCAP register. This causes USB host to break on AM437x after a system suspend/resume. Fix this by restoring the PRTCAP register on system resume. Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>
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