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xhci: add port speed ID to portsc tracing 

Shows the port speed protocol speed ID (PSID) in use.
speed ID may map to custom speeds, but in most cases it uses default

1 = Full-Speed        12 MB/s
2 = Low-Speed         1.5 Mb/s
3 = High-speed        480 Mb/s
4 = SuperSpeed        5 Gb/s
5 = SuperSpeedPlus    10 Gb/s

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2017-10-05 11:21:38 +03:00 committed by Greg Kroah-Hartman
parent 4750bc78ef
commit 8f11487719
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/host/xhci.h
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@ -2441,11 +2441,12 @@ static inline const char *xhci_decode_portsc(u32 portsc)
static char str[256];
int ret;
ret = sprintf(str, "%s %s %s Link:%s ",
ret = sprintf(str, "%s %s %s Link:%s PortSpeed:%d ",
portsc & PORT_POWER ? "Powered" : "Powered-off",
portsc & PORT_CONNECT ? "Connected" : "Not-connected",
portsc & PORT_PE ? "Enabled" : "Disabled",
xhci_portsc_link_state_string(portsc));
xhci_portsc_link_state_string(portsc),
DEV_PORT_SPEED(portsc));
if (portsc & PORT_OC)
ret += sprintf(str + ret, "OverCurrent ");