diff mbox series

[U-Boot,3/5] usb: host: dwc2: force reset assert

Message ID 1564749223-29298-4-git-send-email-patrick.delaunay@st.com
State Superseded
Delegated to: Marek Vasut
Headers show
Series usb: host: dwc2: use driver model for PHY and CLOCK | expand

Commit Message

Patrick DELAUNAY Aug. 2, 2019, 12:33 p.m. UTC 
Assert reset before deassert in dwc2_reset;
It should be more safe for DWC2.

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

 drivers/usb/host/dwc2.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 5c4c21b..836f706 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -1148,6 +1148,8 @@  static int dwc2_reset(struct udevice *dev)
 			return ret;
 	}
 
+	reset_assert_bulk(&priv->resets);
+	udelay(2);
 	ret = reset_deassert_bulk(&priv->resets);
 	if (ret) {
 		reset_release_bulk(&priv->resets);