> > Cc: Pawel Laszczak <pawell@xxxxxxxxxxx>
> > Cc: Roger Quadros <rogerq@xxxxxx>
> > Signed-off-by: Peter Chen <peter.chen@xxxxxxx>
> > ---
> > drivers/usb/host/xhci.c | 2 +-
> > drivers/usb/host/xhci.h | 1 +
> > 2 files changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index
> > 482fe8c5e3b4..fc72a03dc27f 100644
> > --- a/drivers/usb/host/xhci.c
> > +++ b/drivers/usb/host/xhci.c
> > @@ -193,7 +193,7 @@ int xhci_reset(struct xhci_hcd *xhci)
> > * Without this delay, the subsequent HC register access,
> > * may result in a system hang very rarely.
> > */
> > - if (xhci->quirks & XHCI_INTEL_HOST)
> > + if (xhci->quirks & (XHCI_INTEL_HOST | XHCI_CDNS_HOST))
> > udelay(1000);
> >
> > ret = xhci_handshake(&xhci->op_regs->command,
> > diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index
> > 8be88379c0fb..4b7275c73ea5 100644
> > --- a/drivers/usb/host/xhci.h
> > +++ b/drivers/usb/host/xhci.h
> > @@ -1877,6 +1877,7 @@ struct xhci_hcd {
> > #define XHCI_SNPS_BROKEN_SUSPEND BIT_ULL(35)
> > #define XHCI_RENESAS_FW_QUIRK BIT_ULL(36)
> > #define XHCI_SKIP_PHY_INIT BIT_ULL(37)
> > +#define XHCI_CDNS_HOST BIT_ULL(38)
> >
> > unsigned int num_active_eps;
> > unsigned int limit_active_eps;
> >
>
> Is the XHCI_CDNS_HOST quirk bit set in some other patchseries?
>
Currently, no, only at the function of xhci_reset in this commit.
Peter
