[U-Boot] [PATCH 08/16] usb: dwc2: force reset assert before to probe the driver

[Patrick Delaunay]

Reset the hardware to be sure of the device state.

Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 drivers/usb/gadget/dwc2_udc_otg.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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 @@ static int dwc2_udc_otg_reset_init(struct udevice *dev,
 	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;
-- 
2.7.4