We notice some platforms set "snps,dis_u3_susphy_quirk" and "snps,dis_u2_susphy_quirk" when they should not need to. Just make sure that the GUSB3PIPECTL.SUSPENDENABLE and GUSB2PHYCFG.SUSPHY are clear during initialization. The host initialization involved xhci. So the dwc3 needs to implement the xhci_plat_priv->plat_start() for xhci to re-enable the suspend bits.
Since there's a prerequisite patch to drivers/usb/host/xhci-plat.h that's not a fix patch, this series should go on Greg's usb-testing branch instead of usb-linus.
Thinh Nguyen (2): usb: xhci-plat: Don't include xhci.h usb: dwc3: core: Prevent phy suspend during init
drivers/usb/dwc3/core.c | 90 +++++++++++++++--------------------- drivers/usb/dwc3/core.h | 1 + drivers/usb/dwc3/gadget.c | 2 + drivers/usb/dwc3/host.c | 27 +++++++++++ drivers/usb/host/xhci-plat.h | 4 +- 5 files changed, 71 insertions(+), 53 deletions(-)
base-commit: 3d122e6d27e417a9fa91181922743df26b2cd679