From: Daniel Mack <zonque@gmail.com>
Date: Wed, 10 Apr 2013 19:55:49 +0000 (+0200)
Subject: usb: musb: use musb->port_mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6c5f6a6f532ad3c14fbed04b6f2dd0e0cab1a143;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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 a1aa75eb51e2..a04cf8b1678b 100644
--- 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 47ee430a13c9..104d22f7142d 100644
--- 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;