usb: musb: drop musb_platform_suspend/resume

all glue layers are now fully moved to the
new setup. We are now using dev_pm_ops to
implement suspend/resume functionality and
thus, musb_platform_suspend/resume has become
deprecated and useless.

This patch drops those function pointers and
its uses.

Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/musb_core.c

@@ -2306,8 +2306,6 @@ static void musb_save_context(struct musb *musb)
 				musb_read_rxhubport(musb_base, i);
 		}
 	}
-
-	musb_platform_suspend(musb);
 }
 
 static void musb_restore_context(struct musb *musb)
@@ -2317,8 +2315,6 @@ static void musb_restore_context(struct musb *musb)
 	void __iomem *ep_target_regs;
 	void __iomem *epio;
 
-	musb_platform_resume(musb);
-
 	if (is_host_enabled(musb)) {
 		musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
 		musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);

drivers/usb/musb/musb_core.h

@@ -257,8 +257,6 @@ enum musb_g_ep0_state {
  * struct musb_platform_ops - Operations passed to musb_core by HW glue layer
  * @init:	turns on clocks, sets up platform-specific registers, etc
  * @exit:	undoes @init
- * @suspend:	platform-specific suspend, e.g. context save
- * @resume:	platform-specific resume, e.g. context restore
  * @set_mode:	forcefully changes operating mode
  * @try_ilde:	tries to idle the IP
  * @vbus_status: returns vbus status if possible
@@ -268,9 +266,6 @@ struct musb_platform_ops {
 	int	(*init)(struct musb *musb);
 	int	(*exit)(struct musb *musb);
 
-	int	(*suspend)(struct musb *musb);
-	int	(*resume)(struct musb *musb);
-
 	void	(*enable)(struct musb *musb);
 	void	(*disable)(struct musb *musb);
 
@@ -660,20 +655,4 @@ static inline int musb_platform_exit(struct musb *musb)
 	return musb->ops->exit(musb);
 }
 
-static inline int musb_platform_suspend(struct musb *musb)
-{
-	if (!musb->ops->suspend)
-		return 0;
-
-	return musb->ops->suspend(musb);
-}
-
-static inline int musb_platform_resume(struct musb *musb)
-{
-	if (!musb->ops->resume)
-		return 0;
-
-	return musb->ops->resume(musb);
-}
-
 #endif	/* __MUSB_CORE_H__ */