docs: rapidio: add it to the driver API

This is actually a subsystem description, with contains both
kAPI and uAPI.

While it should ideally be slplit, let's place it at driver-api,
as most things are related to kAPI and driver-specific info.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 24fbe056..8853c95ef 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -61,6 +61,7 @@
    parport
    md
    module-signing
+   rapidio
    sysrq
    unicode
    vga-softcursor
diff --git a/Documentation/driver-api/rapidio.rst b/Documentation/admin-guide/rapidio.rst
similarity index 100%
rename from Documentation/driver-api/rapidio.rst
rename to Documentation/admin-guide/rapidio.rst
diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index 6cd750a..d665cd9 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@ -45,7 +45,7 @@
    miscellaneous
    mei/index
    w1
-   rapidio
+   rapidio/index
    s390-drivers
    vme
    80211/index
diff --git a/Documentation/rapidio/index.rst b/Documentation/driver-api/rapidio/index.rst
similarity index 94%
rename from Documentation/rapidio/index.rst
rename to Documentation/driver-api/rapidio/index.rst
index ab7b554..4c5e51a05 100644
--- a/Documentation/rapidio/index.rst
+++ b/Documentation/driver-api/rapidio/index.rst
@@ -1,5 +1,3 @@
-:orphan:
-
 ===========================
 The Linux RapidIO Subsystem
 ===========================
diff --git a/Documentation/rapidio/mport_cdev.rst b/Documentation/driver-api/rapidio/mport_cdev.rst
similarity index 100%
rename from Documentation/rapidio/mport_cdev.rst
rename to Documentation/driver-api/rapidio/mport_cdev.rst
diff --git a/Documentation/rapidio/rapidio.rst b/Documentation/driver-api/rapidio/rapidio.rst
similarity index 100%
rename from Documentation/rapidio/rapidio.rst
rename to Documentation/driver-api/rapidio/rapidio.rst
diff --git a/Documentation/rapidio/rio_cm.rst b/Documentation/driver-api/rapidio/rio_cm.rst
similarity index 100%
rename from Documentation/rapidio/rio_cm.rst
rename to Documentation/driver-api/rapidio/rio_cm.rst
diff --git a/Documentation/rapidio/sysfs.rst b/Documentation/driver-api/rapidio/sysfs.rst
similarity index 100%
rename from Documentation/rapidio/sysfs.rst
rename to Documentation/driver-api/rapidio/sysfs.rst
diff --git a/Documentation/rapidio/tsi721.rst b/Documentation/driver-api/rapidio/tsi721.rst
similarity index 100%
rename from Documentation/rapidio/tsi721.rst
rename to Documentation/driver-api/rapidio/tsi721.rst
diff --git a/drivers/rapidio/Kconfig b/drivers/rapidio/Kconfig
index 467e8fa..677d1af 100644
--- a/drivers/rapidio/Kconfig
+++ b/drivers/rapidio/Kconfig
@@ -86,7 +86,7 @@
 	  This option includes RapidIO channelized messaging driver which
 	  provides socket-like interface to allow sharing of single RapidIO
 	  messaging mailbox between multiple user-space applications.
-	  See "Documentation/rapidio/rio_cm.rst" for driver description.
+	  See "Documentation/driver-api/rapidio/rio_cm.rst" for driver description.
 
 config RAPIDIO_MPORT_CDEV
 	tristate "RapidIO /dev mport device driver"