usb: musb: add reset hook to platform ops

Babble interrupts require us to reset the DSPS glue layer. In order to
handle all other recovery tasks independently, add a new hook for
platform-specific implementations of the actual reset.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 7083e82776ff..5514e4c82932 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -192,6 +192,7 @@ struct musb_platform_ops {
 
         int     (*set_mode)(struct musb *musb, u8 mode);
         void    (*try_idle)(struct musb *musb, unsigned long timeout);
+        void    (*reset)(struct musb *musb);
 
         int     (*vbus_status)(struct musb *musb);
         void    (*set_vbus)(struct musb *musb, int on);
@@ -552,6 +553,12 @@ static inline void musb_platform_try_idle(struct musb *musb,
                 musb->ops->try_idle(musb, timeout);
 }
 
+static inline void musb_platform_reset(struct musb *musb)
+{
+        if (musb->ops->reset)
+                musb->ops->reset(musb);
+}
+
 static inline int musb_platform_get_vbus_status(struct musb *musb)
 {
         if (!musb->ops->vbus_status)