usb: dwc3: core: Add error log when core soft reset failed

DWC3 controller soft reset is important operation for USB functionality.
In case when it fails, currently there is no failure log. Hence add
error log when core soft reset failed.

Signed-off-by: Mayank Rana <quic_mrana@quicinc.com>
Link: https://lore.kernel.org/r/1652897572-14461-1-git-send-email-quic_mrana@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c78205c..e027c04 100644 (file)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -298,6 +298,7 @@ int dwc3_core_soft_reset(struct dwc3 *dwc)
                        udelay(1);
        } while (--retries);
 
+       dev_warn(dwc->dev, "DWC3 controller soft reset failed.\n");
        return -ETIMEDOUT;
 
 done: