usb: dwc3: omap: use request_threaded_irq()
We intend to share this interrupt with the OTG driver an to ensure that irqflags match for the shared interrupt handlers we use request_threaded_irq() If we don't use request_treaded_irq() then forced threaded irq will set IRQF_ONESHOT and this won't match with the OTG IRQ handler's IRQ flags. NOTE: OTG IRQ handler is yet to be added. This is a preparatory step. Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>
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