usb: musb: add musb_host_setup() and musb_host_cleanup()

This patch re-introduces the bits that are necessary to use the musb
controller in host mode.

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

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index e6ece8a4e8b6..6057c2363e86 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2640,6 +2640,27 @@ void musb_host_free(struct musb *musb)
         usb_put_hcd(musb->hcd);
 }
 
+int musb_host_setup(struct musb *musb, int power_budget)
+{
+        int ret;
+        struct usb_hcd *hcd = musb->hcd;
+
+        MUSB_HST_MODE(musb);
+        musb->xceiv->otg->default_a = 1;
+        musb->xceiv->state = OTG_STATE_A_IDLE;
+
+        otg_set_host(musb->xceiv->otg, &hcd->self);
+        hcd->self.otg_port = 1;
+        musb->xceiv->otg->host = &hcd->self;
+        hcd->power_budget = 2 * (power_budget ? : 250);
+
+        ret = usb_add_hcd(hcd, 0, 0);
+        if (ret < 0)
+                return ret;
+
+        return 0;
+}
+
 void musb_host_resume_root_hub(struct musb *musb)
 {
         usb_hcd_resume_root_hub(musb->hcd);