[media] doc-rst: Fix issues with RC documentation

The kernel-doc script is now broken if it doesn't find all
exported symbols documented.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/kapi/rc-core.rst

 Remote Controller devices
 -------------------------
 
+Remote Controller core
+~~~~~~~~~~~~~~~~~~~~~~
+
 .. kernel-doc:: include/media/rc-core.h
 
+.. kernel-doc:: include/media/rc-core.h include/media/rc-map.h
+   :export: drivers/media/rc/rc-main.c drivers/media/rc/rc-raw.c
+
+LIRC
+~~~~
+
 .. kernel-doc:: include/media/lirc_dev.h

include/media/lirc_dev.h

@@ -140,7 +140,7 @@ static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
  *			second.
  *
  * @features:		lirc compatible hardware features, like LIRC_MODE_RAW,
- *			LIRC_CAN_*, as defined at include/media/lirc.h.
+ *			LIRC_CAN\_\*, as defined at include/media/lirc.h.
  *
  * @chunk_size:		Size of each FIFO buffer.
  *

include/media/rc-core.h

@@ -29,9 +29,16 @@ do {								\
 		printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
 } while (0)
 
+/**
+ * enum rc_driver_type - type of the RC output
+ *
+ * @RC_DRIVER_SCANCODE:	Driver or hardware generates a scancode
+ * @RC_DRIVER_IR_RAW:	Driver or hardware generates pulse/space sequences.
+ *			It needs a Infra-Red pulse/space decoder
+ */
 enum rc_driver_type {
-	RC_DRIVER_SCANCODE = 0,	/* Driver or hardware generates a scancode */
-	RC_DRIVER_IR_RAW,	/* Needs a Infra-Red pulse/space decoder */
+	RC_DRIVER_SCANCODE = 0,
+	RC_DRIVER_IR_RAW,
 };
 
 /**
@@ -185,12 +192,46 @@ struct rc_dev {
  * Remote Controller, at sys/class/rc.
  */
 
+/**
+ * rc_allocate_device - Allocates a RC device
+ *
+ * returns a pointer to struct rc_dev.
+ */
 struct rc_dev *rc_allocate_device(void);
+
+/**
+ * rc_free_device - Frees a RC device
+ *
+ * @dev: pointer to struct rc_dev.
+ */
 void rc_free_device(struct rc_dev *dev);
+
+/**
+ * rc_register_device - Registers a RC device
+ *
+ * @dev: pointer to struct rc_dev.
+ */
 int rc_register_device(struct rc_dev *dev);
+
+/**
+ * rc_unregister_device - Unregisters a RC device
+ *
+ * @dev: pointer to struct rc_dev.
+ */
 void rc_unregister_device(struct rc_dev *dev);
 
+/**
+ * rc_open - Opens a RC device
+ *
+ * @rdev: pointer to struct rc_dev.
+ */
 int rc_open(struct rc_dev *rdev);
+
+/**
+ * rc_open - Closes a RC device
+ *
+ * @rdev: pointer to struct rc_dev.
+ */
 void rc_close(struct rc_dev *rdev);
 
 void rc_repeat(struct rc_dev *dev);

include/media/rc-map.h

@@ -98,10 +98,25 @@ struct rc_map_list {
 
 /* Routines from rc-map.c */
 
+/**
+ * rc_map_register() - Registers a Remote Controler scancode map
+ *
+ * @map:	pointer to struct rc_map_list
+ */
 int rc_map_register(struct rc_map_list *map);
+
+/**
+ * rc_map_unregister() - Unregisters a Remote Controler scancode map
+ *
+ * @map:	pointer to struct rc_map_list
+ */
 void rc_map_unregister(struct rc_map_list *map);
+
+/**
+ * rc_map_get - gets an RC map from its name
+ * @name: name of the RC scancode map
+ */
 struct rc_map *rc_map_get(const char *name);
-void rc_map_init(void);
 
 /* Names of the several keytables defined in-kernel */