docs: misc-devices/pci-endpoint-test.txt: convert to ReST

- use title markups;
- mark literal blocks.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>
Link: https://lore.kernel.org/r/1b1f4e[e-mail]
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/misc-devices/ad525x_dpot.txt Documentation/misc-devices/ad525x_dpot.rst

···
----------------------------------
-  AD525x Digital Potentiometers
----------------------------------
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================
+AD525x Digital Potentiometers
+=============================
 
 The ad525x_dpot driver exports a simple sysfs interface.  This allows you to
 work with the immediate resistance settings as well as update the saved startup
···
 interpretation of this settings is required by the end application according to
 the specific part in use.
 
----------
-  Files
----------
+Files
+=====
 
 Each dpot device will have a set of eeprom, rdac, and tolerance files.  How
 many depends on the actual part you have, as will the range of allowed values.
···
 this field, please consult the datasheet for your part.  This is presented
 as a hex file for easier parsing.
 
------------
-  Example
------------
+Example
+=======
 
 Locate the device in your sysfs tree.  This is probably easiest by going into
-the common i2c directory and locating the device by the i2c slave address.
+the common i2c directory and locating the device by the i2c slave address::
 
 	# ls /sys/bus/i2c/devices/
 	0-0022  0-0027  0-002f
 
 So assuming the device in question is on the first i2c bus and has the slave
-address of 0x2f, we descend (unrelated sysfs entries have been trimmed).
+address of 0x2f, we descend (unrelated sysfs entries have been trimmed)::
 
 	# ls /sys/bus/i2c/devices/0-002f/
 	eeprom0 rdac0 tolerance0
 
-You can use simple reads/writes to access these files:
+You can use simple reads/writes to access these files::
 
 	# cd /sys/bus/i2c/devices/0-002f/
 

Documentation/misc-devices/index.rst

···
 .. toctree::
    :maxdepth: 2
 
+   ad525x_dpot
    eeprom
    ibmvmc
    ics932s401

drivers/misc/Kconfig

···
 	  AD5271, AD5272, AD5274
 	  digital potentiometer chips.
 
-	  See Documentation/misc-devices/ad525x_dpot.txt for the
+	  See Documentation/misc-devices/ad525x_dpot.rst for the
 	  userspace interface.
 
 	  This driver can also be built as a module.  If so, the module

drivers/misc/ad525x_dpot.c

···
  * AD5272		1		1024		20, 50, 100 (50-TP)
  * AD5274		1		256		20, 50, 100 (50-TP)
  *
- * See Documentation/misc-devices/ad525x_dpot.txt for more info.
+ * See Documentation/misc-devices/ad525x_dpot.rst for more info.
  *
  * derived from ad5258.c
  * Copyright (c) 2009 Cyber Switching, Inc.