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";
+ case DWC3_LINK_STATE_SS_INACT:
+ return "SS.Inactive";
+ case DWC3_LINK_STATE_POLL:
+ return "Polling";
+ case DWC3_LINK_STATE_RECOV:
+ return "Recovery";
+ case DWC3_LINK_STATE_HRESET:
+ return "Hot Reset";
+ case DWC3_LINK_STATE_CMPLY:
+ return "Compliance";
+ case DWC3_LINK_STATE_LPBK:
+ return "Loopback";
+ case DWC3_LINK_STATE_RESET:
+ return "Reset";
+ case DWC3_LINK_STATE_RESUME:
+ return "Resume";
+ default:
+ return "UNKNOWN link state\n";
+ }
+}
+
int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param)
{
u32 timeout = 500;
@@ -2468,7 +2504,8 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
break;
}
- dev_vdbg(dwc->dev, "%s link %d\n", __func__, dwc->link_state);
+ dev_vdbg(dwc->dev, "%s link %s\n", __func__,
+ dwc3_gadget_link_string(dwc->link_state));
}
static void dwc3_gadget_hibernation_interrupt(struct dwc3 *dwc,
--
1.9.2.459.g68773ac
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