docs: misc-devices/c2port.txt: convert to ReST format

- Use copyright symbol;
- use title markups;
- adjust indentation;
- mark literal blocks as such.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[jc: reverted |copy| change]
Link: https://lore.kernel.org/r/b3b2f3f58a9a33f9e8526d4fa36bee305ea4da38.1592203650.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/misc-devices/c2port.rst

@@ -1,5 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+===============
 C2 port support
-			---------------
+===============
 
 (C) Copyright 2007 Rodolfo Giometti <giometti@enneenne.com>
 
@@ -47,7 +51,7 @@ Using the driver
 ----------------
 
 Once the driver is loaded you can use sysfs support to get C2port's
-info or read/write in-system flash.
+info or read/write in-system flash::
 
   # ls /sys/class/c2port/c2port0/
   access            flash_block_size  flash_erase       rev_id
@@ -56,12 +60,12 @@ flash_access      flash_data        reset             uevent
 
 Initially the C2port access is disabled since you hardware may have
 such lines multiplexed with other devices so, to get access to the
-C2port, you need the command:
+C2port, you need the command::
 
   # echo 1 > /sys/class/c2port/c2port0/access
 
 after that you should read the device ID and revision ID of the
-connected micro controller:
+connected micro controller::
 
   # cat /sys/class/c2port/c2port0/dev_id
   8
@@ -69,22 +73,22 @@ connected micro controller:
   1
 
 However, for security reasons, the in-system flash access in not
-enabled yet, to do so you need the command:
+enabled yet, to do so you need the command::
 
   # echo 1 > /sys/class/c2port/c2port0/flash_access
 
-After that you can read the whole flash:
+After that you can read the whole flash::
 
   # cat /sys/class/c2port/c2port0/flash_data > image
 
-erase it:
+erase it::
 
   # echo 1 > /sys/class/c2port/c2port0/flash_erase
 
-and write it:
+and write it::
 
   # cat image > /sys/class/c2port/c2port0/flash_data
 
-after writing you have to reset the device to execute the new code:
+after writing you have to reset the device to execute the new code::
 
   # echo 1 > /sys/class/c2port/c2port0/reset

Documentation/misc-devices/index.rst

@@ -16,6 +16,7 @@ fit into other categories.
 
    ad525x_dpot
    eeprom
+   c2port
    ibmvmc
    ics932s401
    isl29003