Commit 799e9dc8 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: conditionally disable Link State change events 



Link State Change events are only needed for
debugging and to apply certain workarounds on known
errata. Let's save a few cycles by disabling these
events completely on working revisions of the core.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 15b8d933

drivers/usb/dwc3/gadget.c

+3 −1
Original line number Diff line number Diff line
@@ -1537,11 +1537,13 @@ static void dwc3_gadget_enable_irq(struct dwc3 *dwc) 
			DWC3_DEVTEN_CMDCMPLTEN |

			DWC3_DEVTEN_ERRTICERREN |

			DWC3_DEVTEN_WKUPEVTEN |

			DWC3_DEVTEN_ULSTCNGEN |

			DWC3_DEVTEN_CONNECTDONEEN |

			DWC3_DEVTEN_USBRSTEN |

			DWC3_DEVTEN_DISCONNEVTEN);



	if (dwc->revision < DWC3_REVISION_250A)

		reg |= DWC3_DEVTEN_ULSTCNGEN;



	dwc3_writel(dwc->regs, DWC3_DEVTEN, reg);

}

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