From: Gary Bisson gary.bisson@boundarydevices.com
commit 0e5a3c8284a30f4c43fd81d7285528ece74563b5 upstream.
Commit fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core") introduced clock support and a new function named dwc3_core_init_for_resume() which enables the clock before calling dwc3_core_init() during resume as clocks get disabled during suspend.
Unfortunately in this commit the DWC3_GCTL_PRTCAP_OTG case was forgotten and therefore during resume, a platform could call dwc3_core_init() without re-enabling the clocks first, preventing to resume properly.
So update the resume path to call dwc3_core_init_for_resume() as it should.
Fixes: fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core") Cc: stable@vger.kernel.org Signed-off-by: Gary Bisson gary.bisson@boundarydevices.com Link: https://lore.kernel.org/r/20210125161934.527820-1-gary.bisson@boundarydevice... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/dwc3/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1700,7 +1700,7 @@ static int dwc3_resume_common(struct dwc if (PMSG_IS_AUTO(msg)) break;
- ret = dwc3_core_init(dwc); + ret = dwc3_core_init_for_resume(dwc); if (ret) return ret;