media: pulse8-cec.rst: add documentation for the pulse8-cec driver

Document the persistent_config module option.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/cec-drivers/index.rst

+.. -*- coding: utf-8; mode: rst -*-
+
+.. include:: <isonum.txt>
+
+.. _cec-drivers:
+
+#################################
+CEC driver-specific documentation
+#################################
+
+**Copyright** |copy| 2017 : LinuxTV Developers
+
+This documentation is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+For more details see the file COPYING in the source distribution of Linux.
+
+.. class:: toc-title
+
+        Table of Contents
+
+.. toctree::
+	:maxdepth: 5
+	:numbered:
+
+	pulse8-cec

Documentation/media/cec-drivers/pulse8-cec.rst

+Pulse-Eight CEC Adapter driver
+==============================
+
+The pulse8-cec driver implements the following module option:
+
+``persistent_config``
+---------------------
+
+By default this is off, but when set to 1 the driver will store the current
+settings to the device's internal eeprom and restore it the next time the
+device is connected to the USB port.

Documentation/media/index.rst

@@ -10,6 +10,7 @@ Contents:
    media_kapi
    dvb-drivers/index
    v4l-drivers/index
+   cec-drivers/index
 
 .. only::  subproject
 

MAINTAINERS

@@ -10700,6 +10700,7 @@ L:	linux-media@vger.kernel.org
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/usb/pulse8-cec/*
+F:	Documentation/media/cec-drivers/pulse8-cec.rst
 
 PVRUSB2 VIDEO4LINUX DRIVER
 M:	Mike Isely <isely@pobox.com>