Commit 461ee467 authored by Wesley Cheng's avatar Wesley Cheng Committed by Greg Kroah-Hartman
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usb: dwc3: Increase DWC3 controller halt timeout 



Since EP0 transactions need to be completed before the controller halt
sequence is finished, this may take some time depending on the host and the
enabled functions.  Increase the controller halt timeout, so that we give
the controller sufficient time to handle EP0 transfers.

Signed-off-by: default avatarWesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220901193625.8727-4-quic_wcheng@quicinc.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5265397f

drivers/usb/dwc3/gadget.c

+2 −1
Original line number Diff line number Diff line
@@ -2444,7 +2444,7 @@ static void __dwc3_gadget_set_speed(struct dwc3 *dwc) 
static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend)

{

	u32			reg;

	u32			timeout = 500;

	u32			timeout = 2000;



	if (pm_runtime_suspended(dwc->dev))

		return 0;
@@ -2477,6 +2477,7 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend) 
	dwc3_gadget_dctl_write_safe(dwc, reg);



	do {

		usleep_range(1000, 2000);

		reg = dwc3_readl(dwc->regs, DWC3_DSTS);

		reg &= DWC3_DSTS_DEVCTRLHLT;

	} while (--timeout && !(!is_on ^ !reg));