usb: xceiv: create nop-usb-xceiv.h and avoid pollution on otg.h

nop-usb-xceiv was polluting otg.h with its own
function prototypes. Move those prototypes to
a nop-usb-xceiv.h header.

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

arch/arm/mach-omap2/board-omap3evm.c

@@ -32,6 +32,7 @@
 #include <linux/spi/ads7846.h>
 #include <linux/i2c/twl.h>
 #include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
 #include <linux/smsc911x.h>
 
 #include <linux/wl12xx.h>

drivers/usb/musb/am35x.c

@@ -33,6 +33,7 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <plat/usb.h>
 

drivers/usb/musb/blackfin.c

@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/prefetch.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <asm/cacheflush.h>
 

drivers/usb/musb/da8xx.c

@@ -33,6 +33,7 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <mach/da8xx.h>
 #include <mach/usb.h>

drivers/usb/musb/davinci.c

@@ -33,6 +33,7 @@
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <mach/cputype.h>
 #include <mach/hardware.h>

drivers/usb/musb/musb_dsps.c

@@ -36,6 +36,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/pm_runtime.h>
 #include <linux/module.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <linux/of.h>
 #include <linux/of_device.h>

drivers/usb/musb/tusb6010.c

@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include "musb_core.h"
 

drivers/usb/otg/nop-usb-xceiv.c

@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
 #include <linux/slab.h>
 
 struct nop_usb_xceiv {

include/linux/usb/nop-usb-xceiv.h

@@ -0,0 +1,18 @@
+#ifndef __LINUX_USB_NOP_XCEIV_H
+#define __LINUX_USB_NOP_XCEIV_H
+
+#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
+/* sometimes transceivers are accessed only through e.g. ULPI */
+extern void usb_nop_xceiv_register(void);
+extern void usb_nop_xceiv_unregister(void);
+#else
+static inline void usb_nop_xceiv_register(void)
+{
+}
+
+static inline void usb_nop_xceiv_unregister(void)
+{
+}
+#endif
+
+#endif /* __LINUX_USB_NOP_XCEIV_H */

include/linux/usb/otg.h

@@ -138,20 +138,6 @@ struct usb_phy {
 extern int usb_add_phy(struct usb_phy *, enum usb_phy_type type);
 extern void usb_remove_phy(struct usb_phy *);
 
-#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
-/* sometimes transceivers are accessed only through e.g. ULPI */
-extern void usb_nop_xceiv_register(void);
-extern void usb_nop_xceiv_unregister(void);
-#else
-static inline void usb_nop_xceiv_register(void)
-{
-}
-
-static inline void usb_nop_xceiv_unregister(void)
-{
-}
-#endif
-
 /* helpers for direct access thru low-level io interface */
 static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)
 {