greybus: gpbridge.h: move protocol init/exit prototypes

Create gpbridge.h for the gpbridge-specific function prototypes, the
rest of the greybus drivers don't care about them.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>

drivers/staging/greybus/gpbridge.c

@@ -17,7 +17,7 @@
 #include <linux/device.h>
 
 #include "greybus.h"
-
+#include "gpbridge.h"
 
 static int __init gpbridge_init(void)
 {

drivers/staging/greybus/gpbridge.h

+/*
+ * Greybus GPBridge phy driver
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * Released under the GPLv2 only.
+ */
+
+#ifndef __GPBRIDGE_H
+#define __GPBRIDGE_H
+
+extern int gb_gpio_protocol_init(void);
+extern void gb_gpio_protocol_exit(void);
+
+extern int gb_pwm_protocol_init(void);
+extern void gb_pwm_protocol_exit(void);
+
+extern int gb_uart_protocol_init(void);
+extern void gb_uart_protocol_exit(void);
+
+extern int gb_sdio_protocol_init(void);
+extern void gb_sdio_protocol_exit(void);
+
+extern int gb_usb_protocol_init(void);
+extern void gb_usb_protocol_exit(void);
+
+extern int gb_i2c_protocol_init(void);
+extern void gb_i2c_protocol_exit(void);
+
+extern int gb_spi_protocol_init(void);
+extern void gb_spi_protocol_exit(void);
+
+#endif /* __GPBRIDGE_H */
+

drivers/staging/greybus/gpio.c

@@ -16,6 +16,7 @@
 #include <linux/mutex.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 struct gb_gpio_line {
 	/* The following has to be an array of line_max entries */

drivers/staging/greybus/i2c.c

@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 struct gb_i2c_device {
 	struct gb_connection	*connection;

drivers/staging/greybus/protocol.h

@@ -48,32 +48,6 @@ int gb_protocol_get_version(struct gb_connection *connection);
 
 void gb_protocol_put(struct gb_protocol *protocol);
 
-/*
- * These are defined in their respective protocol source files.
- * Declared here for now.  They could be added via modules, or maybe
- * just use initcalls (which level?).
- */
-extern int gb_gpio_protocol_init(void);
-extern void gb_gpio_protocol_exit(void);
-
-extern int gb_pwm_protocol_init(void);
-extern void gb_pwm_protocol_exit(void);
-
-extern int gb_uart_protocol_init(void);
-extern void gb_uart_protocol_exit(void);
-
-extern int gb_sdio_protocol_init(void);
-extern void gb_sdio_protocol_exit(void);
-
-extern int gb_usb_protocol_init(void);
-extern void gb_usb_protocol_exit(void);
-
-extern int gb_i2c_protocol_init(void);
-extern void gb_i2c_protocol_exit(void);
-
-extern int gb_spi_protocol_init(void);
-extern void gb_spi_protocol_exit(void);
-
 /* __protocol: Pointer to struct gb_protocol */
 #define gb_protocol_driver(__protocol)			\
 static int __init protocol_init(void)			\

drivers/staging/greybus/pwm.c

@@ -13,6 +13,7 @@
 #include <linux/pwm.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 struct gb_pwm_chip {
 	struct gb_connection	*connection;

drivers/staging/greybus/sdio.c

@@ -15,6 +15,7 @@
 #include <linux/workqueue.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 struct gb_sdio_host {
 	struct gb_connection	*connection;

drivers/staging/greybus/spi.c

@@ -14,6 +14,7 @@
 #include <linux/spi/spi.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 struct gb_spi {
 	struct gb_connection	*connection;

drivers/staging/greybus/uart.c

@@ -29,6 +29,7 @@
 #include <linux/kdev_t.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 #define GB_NUM_MINORS	16	/* 16 is is more than enough */
 #define GB_NAME		"ttyGB"

drivers/staging/greybus/usb.c

@@ -14,6 +14,7 @@
 #include <linux/usb/hcd.h>
 
 #include "greybus.h"
+#include "gpbridge.h"
 
 /* Version of the Greybus USB protocol we support */
 #define GB_USB_VERSION_MAJOR		0x00