diff options
| author | Vijayavardhan Vennapusa <vvreddy@codeaurora.org> | 2016-09-01 12:05:50 +0530 |
|---|---|---|
| committer | Vijayavardhan Vennapusa <vvreddy@codeaurora.org> | 2016-11-25 11:42:01 +0530 |
| commit | e0d9b5dae90fe4ef7aa82dcb00a895f2aebf36a8 (patch) | |
| tree | 26e7702519fdd23e7a1484b8d4ce91334ca19760 | |
| parent | bee274711e8d2ddb97fb1e80a18f295e9f97fa87 (diff) | |
USB: dwc3-msm: Fix issue related to error recovery for ERRATIC ERROR
If ERRATIC event irq is triggered by USB controller, it requires to perform
block reset USB controller as recovery mechanism as per SNPS data book.
Error recovery happens through allowing USB entering low power mode and
exit low power mode. We might see recovery failing as check for P3 state is
true as part of suspend and results in USB not entering low power mode.
Fix this issue by allowing USB enter low power mode in case of recovery
flag mdwc->in_restart set.
CRs-Fixed: 1060831
Change-Id: I41f935da3d4af1dd04eb4b3299e36a0f528633da
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
| -rw-r--r-- | drivers/usb/dwc3/dwc3-msm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/dwc3-msm.c b/drivers/usb/dwc3/dwc3-msm.c index add035269ae7..ff0564cfe065 100644 --- a/drivers/usb/dwc3/dwc3-msm.c +++ b/drivers/usb/dwc3/dwc3-msm.c @@ -1781,7 +1781,7 @@ static int dwc3_msm_prepare_suspend(struct dwc3_msm *mdwc) u32 reg = 0; if ((mdwc->in_host_mode || mdwc->vbus_active) - && dwc3_msm_is_superspeed(mdwc)) { + && dwc3_msm_is_superspeed(mdwc) && !mdwc->in_restart) { if (!atomic_read(&mdwc->in_p3)) { dev_err(mdwc->dev, "Not in P3,aborting LPM sequence\n"); return -EBUSY; |