On Thu, Apr 24, 2014 at 09:18:08PM +0000, Paul Zimmerman wrote: > > From: linux-usb-owner@xxxxxxxxxxxxxxx [mailto:linux-usb-owner@xxxxxxxxxxxxxxx] On Behalf Of Felipe Balbi > > Sent: Thursday, April 24, 2014 8:10 AM > > > > this makes it slightly easier to read link state > > change interrupt logs. > > > > Signed-off-by: Felipe Balbi <balbi@xxxxxx> > > --- > > drivers/usb/dwc3/gadget.c | 39 ++++++++++++++++++++++++++++++++++++++- > > 1 file changed, 38 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c > > index f0dc0ee..a8cf87b 100644 > > --- a/drivers/usb/dwc3/gadget.c > > +++ b/drivers/usb/dwc3/gadget.c > > @@ -302,6 +302,42 @@ static const char *dwc3_gadget_ep_cmd_string(u8 cmd) > > } > > } > > > > +static const char *dwc3_gadget_link_string(enum dwc3_link_state link_state) > > +{ > > + switch (link_state) { > > + case DWC3_LINK_STATE_U0: > > + return "U0"; > > + case DWC3_LINK_STATE_U1: > > + return "U1"; > > + case DWC3_LINK_STATE_U2: > > + return "U2"; > > + case DWC3_LINK_STATE_U3: > > + return "U3"; > > + case DWC3_LINK_STATE_SS_DIS: > > + return "SS.Disabled"; > > + case DWC3_LINK_STATE_RX_DET: > > + return "RX.Detect"; > > Hi Felipe, > > For the non-obvious link states, could we have both the name and the > number in the message perhaps? i.e. > > case DWC3_LINK_STATE_SS_DIS: > return "SS.Disabled (4)"; > case DWC3_LINK_STATE_RX_DET: > return "RX.Detect (5)"; > > and so on. > > If I'm looking at the link state in a register and comparing it to the > log, it helps if I don't have to look up the values in the databook ;) Sure, makes sense. ps: funny thing, when I was debugging this I was tired of looking at numbers because I always had to look at the Databook to figure out what they were :-p -- balbi
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