mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-24 09:50:04 +00:00
Code Issues Releases Wiki Activity

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

Browse source 
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: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-09-23 11:20:40 +03:00
parent 15b8d9332b
commit 799e9dc829
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/dwc3/gadget.c
View file

@ -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);
}