usb: musb: use musb->port_mode

Initialize the host and gadget subsystems of the musb driver only when
the appropriate mode is selected from platform data, or device-tree
information, respectively.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index a1aa75e..a04cf8b 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1904,11 +1904,23 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
                musb->xceiv->state = OTG_STATE_B_IDLE;
        }
 
-       status = musb_host_setup(musb, plat->power);
-       if (status < 0)
-               goto fail3;
-
-       status = musb_gadget_setup(musb);
+       switch (musb->port_mode) {
+       case MUSB_PORT_MODE_HOST:
+               status = musb_host_setup(musb, plat->power);
+               break;
+       case MUSB_PORT_MODE_GADGET:
+               status = musb_gadget_setup(musb);
+               break;
+       case MUSB_PORT_MODE_DUAL_ROLE:
+               status = musb_host_setup(musb, plat->power);
+               if (status < 0)
+                       goto fail3;
+               status = musb_gadget_setup(musb);
+               break;
+       default:
+               dev_err(dev, "unsupported port mode %d\n", musb->port_mode);
+               break;
+       }
 
        if (status < 0)
                goto fail3;

diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 47ee430..104d22f 100644 (file)
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -79,7 +79,8 @@ static void musb_start(struct musb *musb)
         * (b) vbus present/connect IRQ, peripheral mode;
         * (c) peripheral initiates, using SRP
         */
-       if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
+       if (musb->port_mode != MUSB_PORT_MODE_HOST &&
+           (devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
                musb->is_active = 1;
        } else {
                devctl |= MUSB_DEVCTL_SESSION;