This allows dual-role ports to be reported as having gadget mode by the musb_has_gadget helper. This is required to enable MUSB at all with MUSB glue layers that set the port mode to MUSB_PORT_MODE_DUAL_ROLE at init. Most notably, this allows calling musb_start when needed in the virtual MUSB root HUB, regardless of whether the current mode should be gadget or host. This fixes USB OTG on Allwinner devices that I could test it with, mainly A20 devices. Signed-off-by: Paul Kocialkowski <contact@xxxxxxxx> --- drivers/usb/musb/musb_virthub.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 5165d2b07ade..8fd5c5f86e82 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -249,7 +249,8 @@ static int musb_has_gadget(struct musb *musb) #ifdef CONFIG_USB_MUSB_HOST return 1; #else - return musb->port_mode == MUSB_PORT_MODE_HOST; + return musb->port_mode == MUSB_PORT_MODE_HOST || + musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE; #endif } -- 2.16.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
