From 99705092a83f0202d2b64c1b754a831464c5ce90 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 16 Jan 2015 17:54:01 +0200 Subject: [PATCH] xhci: Print hcc params, version and quirks on init To help debugging xhci problems. Signed-off-by: Hans de Goede Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 4 ++++ drivers/usb/host/xhci.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 1b0c91f..15d8c22 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 e23f31d..9745147 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. -- 2.7.4