[PATCH v2 20/32] usb: dwc2: force dr_mode in case of configuration mismatch

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If dual role configuration is not selected, check and force dr_mode
based on the selected configuration.

Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
Tested-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
---
 drivers/usb/dwc2/platform.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 3d1f82d..50a0e70 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -221,6 +221,17 @@ static int dwc2_driver_probe(struct platform_device *dev)
 		(unsigned long)res->start, hsotg->regs);
 
 	hsotg->dr_mode = of_usb_get_dr_mode(dev->dev.of_node);
+	if (IS_ENABLED(CONFIG_USB_DWC2_HOST) &&
+		hsotg->dr_mode != USB_DR_MODE_HOST) {
+		hsotg->dr_mode = USB_DR_MODE_HOST;
+		dev_warn(hsotg->dev,
+			"Configuration mismatch. Forcing host mode\n");
+	} else if (IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) &&
+		hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
+		hsotg->dr_mode = USB_DR_MODE_PERIPHERAL;
+		dev_warn(hsotg->dev,
+			"Configuration mismatch. Forcing peripheral mode\n");
+	}
 
 	/*
 	 * Attempt to find a generic PHY, then look for an old style
-- 
2.3.3

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