staging: greybus: add missing includes

Before moving greybus core out of staging and moving header files to
include/linux some greybus header files were missing the necessary
includes. This would trigger compilation faillures with some example
errors logged bellow for with CONFIG_KERNEL_HEADER_TEST=y.

So, add the necessary headers to compile clean before relocating the
header files.

./include/linux/greybus/hd.h:23:50: error: unknown type name 'u16'
  int (*cport_disable)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/greybus_protocols.h:1314:2: error: unknown type name '__u8'
  __u8 data[0];
  ^~~~
./include/linux/greybus/hd.h:24:52: error: unknown type name 'u16'
  int (*cport_connected)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:25:48: error: unknown type name 'u16'
  int (*cport_flush)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:26:51: error: unknown type name 'u16'
  int (*cport_shutdown)(struct gb_host_device *hd, u16 cport_id, ^~~
./include/linux/greybus/hd.h:27:5: error: unknown type name 'u8'
u8 phase, unsigned int timeout);
     ^~
./include/linux/greybus/hd.h:28:50: error: unknown type name 'u16'
  int (*cport_quiesce)(struct gb_host_device *hd, u16 cport_id, ^~~
./include/linux/greybus/hd.h:29:5: error: unknown type name 'size_t'
     size_t peer_space, unsigned int timeout);
     ^~~~~~
./include/linux/greybus/hd.h:29:5: note: 'size_t' is defined in header '<stddef.h>'; did you forget to '#include <stddef.h>'?
./include/linux/greybus/hd.h:1:1:
+#include <stddef.h>
 /* SPDX-License-Identifier: GPL-2.0 */
./include/linux/greybus/hd.h:29:5:
     size_t peer_space, unsigned int timeout);
     ^~~~~~
./include/linux/greybus/hd.h:30:48: error: unknown type name 'u16'
  int (*cport_clear)(struct gb_host_device *hd, u16 cport_id); ^~~
./include/linux/greybus/hd.h:32:49: error: unknown type name 'u16'
  int (*message_send)(struct gb_host_device *hd, u16 dest_cport_id, ^~~
./include/linux/greybus/hd.h:33:32: error: unknown type name 'gfp_t'
struct gb_message *message, gfp_t gfp_mask); ^~~~~
./include/linux/greybus/hd.h:35:55: error: unknown type name 'u16'
  int (*latency_tag_enable)(struct gb_host_device *hd, u16 cport_id);

Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Gao Xiang <hsiangkao@aol.com>
Signed-off-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20190827155302.25704-1-rui.silva@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/greybus/bundle.h

@@ -9,7 +9,10 @@
 #ifndef __BUNDLE_H
 #define __BUNDLE_H
 
+#include <linux/types.h>
 #include <linux/list.h>
+#include <linux/pm_runtime.h>
+#include <linux/device.h>
 
 #define	BUNDLE_ID_NONE	U8_MAX
 

include/linux/greybus/connection.h

@@ -9,8 +9,11 @@
 #ifndef __CONNECTION_H
 #define __CONNECTION_H
 
+#include <linux/bits.h>
 #include <linux/list.h>
 #include <linux/kfifo.h>
+#include <linux/kref.h>
+#include <linux/workqueue.h>
 
 #define GB_CONNECTION_FLAG_CSD		BIT(0)
 #define GB_CONNECTION_FLAG_NO_FLOWCTRL	BIT(1)

include/linux/greybus/control.h

@@ -9,6 +9,9 @@
 #ifndef __CONTROL_H
 #define __CONTROL_H
 
+#include <linux/types.h>
+#include <linux/device.h>
+
 struct gb_control {
 	struct device dev;
 	struct gb_interface *intf;

include/linux/greybus/greybus_manifest.h

@@ -14,6 +14,9 @@
 #ifndef __GREYBUS_MANIFEST_H
 #define __GREYBUS_MANIFEST_H
 
+#include <linux/bits.h>
+#include <linux/types.h>
+
 enum greybus_descriptor_type {
 	GREYBUS_TYPE_INVALID		= 0x00,
 	GREYBUS_TYPE_INTERFACE		= 0x01,

include/linux/greybus/greybus_protocols.h

@@ -7,6 +7,8 @@
 #ifndef __GREYBUS_PROTOCOLS_H
 #define __GREYBUS_PROTOCOLS_H
 
+#include <linux/types.h>
+
 /* Fixed IDs for control/svc protocols */
 
 /* SVC switch-port device ids */

include/linux/greybus/hd.h

@@ -9,6 +9,9 @@
 #ifndef __HD_H
 #define __HD_H
 
+#include <linux/types.h>
+#include <linux/device.h>
+
 struct gb_host_device;
 struct gb_message;
 

include/linux/greybus/interface.h

@@ -9,6 +9,9 @@
 #ifndef __INTERFACE_H
 #define __INTERFACE_H
 
+#include <linux/types.h>
+#include <linux/device.h>
+
 enum gb_interface_type {
 	GB_INTERFACE_TYPE_INVALID = 0,
 	GB_INTERFACE_TYPE_UNKNOWN,

include/linux/greybus/manifest.h

@@ -9,6 +9,8 @@
 #ifndef __MANIFEST_H
 #define __MANIFEST_H
 
+#include <linux/types.h>
+
 struct gb_interface;
 bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size);
 

include/linux/greybus/module.h

@@ -9,6 +9,9 @@
 #ifndef __MODULE_H
 #define __MODULE_H
 
+#include <linux/types.h>
+#include <linux/device.h>
+
 struct gb_module {
 	struct device dev;
 	struct gb_host_device *hd;

include/linux/greybus/operation.h

@@ -10,6 +10,11 @@
 #define __OPERATION_H
 
 #include <linux/completion.h>
+#include <linux/kref.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
 
 struct gb_operation;
 

include/linux/greybus/svc.h

@@ -9,6 +9,9 @@
 #ifndef __SVC_H
 #define __SVC_H
 
+#include <linux/types.h>
+#include <linux/device.h>
+
 #define GB_SVC_CPORT_FLAG_E2EFC		BIT(0)
 #define GB_SVC_CPORT_FLAG_CSD_N		BIT(1)
 #define GB_SVC_CPORT_FLAG_CSV_N		BIT(2)