Commit d3097f08 authored Jun 23, 2014 by Bar Weiner

usb: dwc3: msm: configure event buffers after power collapse



During USB core power collapse the core registers
return to their reset value. hence, all registers
must be re-configured.
Not configuring the event buffers properly can
cause the controller to endlessly produce false
events and interrupts.

CRs-Fixed: 677681
Change-Id: Ie3d54bf948327c23102d5ed918473b3f78dc6d17
Signed-off-by: Bar Weiner <bweiner@codeaurora.org>

parent 104105f6

drivers/usb/dwc3/dwc3-msm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1494,6 +1494,9 @@ static void dwc3_msm_power_collapse_por(struct dwc3_msm *mdwc)
		dwc3_msm_write_reg(mdwc->base, DWC3_GCTL, reg);

		udelay(100);

		/* Re-configure event buffers */
		dwc3_event_buffers_setup(dwc);
		}

		static int dwc3_msm_prepare_suspend(struct dwc3_msm *mdwc)