[PATCH v2 3/3] usb: chipidea: register driver as a peripheral with the phy

From: Tim Bird
Date: Fri Nov 20 2015 - 17:37:40 EST

Register the chipidea driver with the phy, so that the phy
driver can kick the gadget driver when it resumes from low power.
The phy-msm-usb (Qualcomm) driver requires this in order to
recover gadget operation after you disconnect the USB cable
and reconnect it.

Signed-off-by: Tim Bird <tim.bird@xxxxxxxxxxxxxx>
drivers/usb/chipidea/udc.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 8223fe7..06234cd 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1890,6 +1890,12 @@ static int udc_start(struct ci_hdrc *ci)

ci->gadget.ep0 = &ci->ep0in->ep;

+ if (ci->usb_phy) {
+ retval = otg_set_peripheral(ci->usb_phy->otg, &ci->gadget);
+ if (retval)
+ goto destroy_eps;
+ }
retval = usb_add_gadget_udc(dev, &ci->gadget);
if (retval)
goto destroy_eps;

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