xhci: Print hcc params, version and quirks on init

To help debugging xhci problems.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 6 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1b0c91f12da2..15d8c221442f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4904,6 +4904,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
         if (retval)
                 goto error;
         xhci_dbg(xhci, "Called HCD init\n");
+
+        xhci_info(xhci, "hcc params 0x%08x hci version 0x%x quirks 0x%08x\n",
+                  xhci->hcc_params, xhci->hci_version, xhci->quirks);
+
         return 0;
 error:
         kfree(xhci);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index e23f31d029a3..974514762a14 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1605,6 +1605,8 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
         dev_warn(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 #define xhci_warn_ratelimited(xhci, fmt, args...) \
         dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
+#define xhci_info(xhci, fmt, args...) \
+        dev_info(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 
 /*
  * Registers should always be accessed with double word or quad word accesses.