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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>
This commit is contained in:
Daniel Mack 2013-04-10 21:55:49 +02:00 committed by Felipe Balbi
parent 9ad96e694c
commit 6c5f6a6f53
2 changed files with 19 additions and 6 deletions
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22
drivers/usb/musb/musb_core.c
View File

@ -1904,11 +1904,23 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb->xceiv->state = OTG_STATE_B_IDLE; musb->xceiv->state = OTG_STATE_B_IDLE;
} }
status = musb_host_setup(musb, plat->power); switch (musb->port_mode) {
if (status < 0) case MUSB_PORT_MODE_HOST:
goto fail3; status = musb_host_setup(musb, plat->power);
break;
status = musb_gadget_setup(musb); 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) if (status < 0)
goto fail3; goto fail3;

3
drivers/usb/musb/musb_virthub.c
View File

@ -79,7 +79,8 @@ static void musb_start(struct musb *musb)
* (b) vbus present/connect IRQ, peripheral mode; * (b) vbus present/connect IRQ, peripheral mode;
* (c) peripheral initiates, using SRP * (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; musb->is_active = 1;
} else { } else {
devctl |= MUSB_DEVCTL_SESSION; devctl |= MUSB_DEVCTL_SESSION;