[PATCH 4.9 26/96] usb: dwc3: omap: dont miss events during suspend/resume

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Roger Quadros <rogerq@xxxxxx>

[ Upstream commit c49f63055e252810e5d6c83a4943b18db16b3cd8 ]

The USB cable state can change during suspend/resume
so be sure to check and update the extcon state.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/usb/dwc3/dwc3-omap.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -598,9 +598,25 @@ static int dwc3_omap_resume(struct devic
 	return 0;
 }
 
+static void dwc3_omap_complete(struct device *dev)
+{
+	struct dwc3_omap	*omap = dev_get_drvdata(dev);
+
+	if (extcon_get_state(omap->edev, EXTCON_USB))
+		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
+	else
+		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
+
+	if (extcon_get_state(omap->edev, EXTCON_USB_HOST))
+		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
+	else
+		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
+}
+
 static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {
 
 	SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)
+	.complete = dwc3_omap_complete,
 };
 
 #define DEV_PM_OPS	(&dwc3_omap_dev_pm_ops)