usb: musb: Fix getting a generic phy for musb_dsps

We still have a combination of legacy phys and generic phys in
use so we need to support both types of phy for musb_dsps.c.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 5872accb0fd350dea8c2d9a648645ff11e8a1944..a900c9877195ad6ef2048ddb8c2813c8e196feed 100644 (file)
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -457,12 +457,27 @@ static int dsps_musb_init(struct musb *musb)
        if (IS_ERR(musb->xceiv))
                return PTR_ERR(musb->xceiv);
 
+       musb->phy = devm_phy_get(dev->parent, "usb2-phy");
+
        /* Returns zero if e.g. not clocked */
        rev = dsps_readl(reg_base, wrp->revision);
        if (!rev)
                return -ENODEV;
 
        usb_phy_init(musb->xceiv);
+       if (IS_ERR(musb->phy))  {
+               musb->phy = NULL;
+       } else {
+               ret = phy_init(musb->phy);
+               if (ret < 0)
+                       return ret;
+               ret = phy_power_on(musb->phy);
+               if (ret) {
+                       phy_exit(musb->phy);
+                       return ret;
+               }
+       }
+
        setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
 
        /* Reset the musb */
@@ -502,6 +517,8 @@ static int dsps_musb_exit(struct musb *musb)
 
        del_timer_sync(&glue->timer);
        usb_phy_shutdown(musb->xceiv);
+       phy_power_off(musb->phy);
+       phy_exit(musb->phy);
        debugfs_remove_recursive(glue->dbgfs_root);
 
        return 0;
@@ -610,7 +627,7 @@ static int dsps_musb_reset(struct musb *musb)
        struct device *dev = musb->controller;
        struct dsps_glue *glue = dev_get_drvdata(dev->parent);
        const struct dsps_musb_wrapper *wrp = glue->wrp;
-       int session_restart = 0;
+       int session_restart = 0, error;
 
        if (glue->sw_babble_enabled)
                session_restart = sw_babble_control(musb);
@@ -624,8 +641,14 @@ static int dsps_musb_reset(struct musb *musb)
                dsps_writel(musb->ctrl_base, wrp->control, (1 << wrp->reset));
                usleep_range(100, 200);
                usb_phy_shutdown(musb->xceiv);
+               error = phy_power_off(musb->phy);
+               if (error)
+                       dev_err(dev, "phy shutdown failed: %i\n", error);
                usleep_range(100, 200);
                usb_phy_init(musb->xceiv);
+               error = phy_power_on(musb->phy);
+               if (error)
+                       dev_err(dev, "phy powerup failed: %i\n", error);
                session_restart = 1;
        }