[PATCH 1/3] usb: common: default dr_mode to OTG when not set

[Casey Connolly]

DT bindings dictate that dr_mode being unset on a DRD capable USB
controller means we should default to OTG mode. Adjust usb_get_dr_mode()
to reflect this.

Signed-off-by: Casey Connolly <casey.connolly at linaro.org>
---
 drivers/usb/common/common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 13e9a61072a9..e3bd7339e68e 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -29,9 +29,10 @@ enum usb_dr_mode usb_get_dr_mode(ofnode node)
 
 	dr_mode = ofnode_read_string(node, "dr_mode");
 	if (!dr_mode) {
 		pr_debug("usb dr_mode not found\n");
-		return USB_DR_MODE_UNKNOWN;
+		/* Default to OTG mode as per DT bindings */
+		return USB_DR_MODE_OTG;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
 		if (!strcmp(dr_mode, usb_dr_modes[i]))

-- 
2.51.0