Quoting Peter Chen (2016-07-08 02:14:57)

On Thu, Jul 07, 2016 at 03:20:55PM -0700, Stephen Boyd wrote:

quoted

diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index 03b6743461d1..a6fc60934297 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c

@@ -104,7 +104,31 @@ void ci_handle_vbus_change(struct ci_hdrc *ci)
              usb_gadget_vbus_disconnect(&ci->gadget);
 }
 
-#define CI_VBUS_STABLE_TIMEOUT_MS 5000
+/**
+ * When we switch to device mode, the vbus value should be lower
+ * than OTGSC_BSV before connecting to host.
+ *
+ * @ci: the controller
+ *
+ * This function returns an error code if timeout
+ */
+static int hw_wait_otgsc_bsv(struct ci_hdrc *ci)

I think the function name should reflect "we wait for vbus lower than bsv"
Care to change one?

Sure, something like hw_wait_vbus_lower_bsv()?