usb: dwc2: force reset assert before to probe the driver
Reset the hardware to be sure of the device state.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
index af16fc1..8169fdb 100644
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -1049,7 +1049,12 @@
if (ret)
return ret;
- ret = reset_deassert_bulk(resets);
+ ret = reset_assert_bulk(resets);
+
+ if (!ret) {
+ udelay(2);
+ ret = reset_deassert_bulk(resets);
+ }
if (ret) {
reset_release_bulk(resets);
return ret;