usb: dwc3: keep default hird threshold value as 4b1100

as per data book any HIRD threshold value greater than 4b1100 is
invalid. So set the maximum valid value as default values.

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 13f257db243773b1ab61df4e32b21942216123dd..f732f2ccb9b469b253c180d5702c01e6d3a12cad 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2448,7 +2448,7 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc)
                reg &= ~(DWC3_DCTL_HIRD_THRES_MASK | DWC3_DCTL_L1_HIBER_EN);
 
                /* TODO: This should be configurable */
-               reg |= DWC3_DCTL_HIRD_THRES(31);
+               reg |= DWC3_DCTL_HIRD_THRES(28);
 
                dwc3_writel(dwc->regs, DWC3_DCTL, reg);