media: docs: saa7134.rst: update the documentation

There are several things here that are outdated, because this
document was written a long time ago.

Update them to reflect the current status of the driver and
the media subsystem.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/admin-guide/media/saa7134.rst

@@ -7,8 +7,7 @@ Author Gerd Hoffmann
 
 
 This is a v4l2/oss device driver for saa7130/33/34/35 based capture / TV
-boards.  See http://www.semiconductors.philips.com/pip/saa7134hl for a
-description.
+boards.
 
 
 Status
@@ -24,26 +23,54 @@ configuration info.
 Build
 -----
 
-Pick up videodev + v4l2 patches from http://bytesex.org/patches/.
-Configure, build, install + boot the new kernel.  You'll need at least
-these config options:
+Once you pick up a Kernel source, you should configure, build,
+install and boot the new kernel.  You'll need at least
+these config options::
 
-.. code-block:: none
+    ./scripts/config -e PCI
+    ./scripts/config -e INPUT
+    ./scripts/config -m I2C
+    ./scripts/config -m MEDIA_SUPPORT
+    ./scripts/config -e MEDIA_PCI_SUPPORT
+    ./scripts/config -e MEDIA_ANALOG_TV_SUPPORT
+    ./scripts/config -e MEDIA_DIGITAL_TV_SUPPORT
+    ./scripts/config -e MEDIA_RADIO_SUPPORT
+    ./scripts/config -e RC_CORE
+    ./scripts/config -e MEDIA_SUBDRV_AUTOSELECT
+    ./scripts/config -m VIDEO_SAA7134
+    ./scripts/config -e SAA7134_ALSA
+    ./scripts/config -e VIDEO_SAA7134_RC
+    ./scripts/config -e VIDEO_SAA7134_DVB
+    ./scripts/config -e VIDEO_SAA7134_GO7007
 
-	CONFIG_I2C=m
-	CONFIG_VIDEO_DEV=m
+To build and install, you should run::
 
-Type "make" to build the driver now.  "make install" installs the
-driver.  "modprobe saa7134" should load it.  Depending on the card you
-might have to pass card=<nr> as insmod option, check CARDLIST for
-valid choices.
+    make && make modules_install && make install
+
+Once the new Kernel is booted, saa7134 driver should be loaded automatically.
+
+Depending on the card you might have to pass ``card=<nr>`` as insmod option.
+If so, please check :doc:`saa7134-cardlist` for valid choices.
+
+Once you have your card type number, you can pass a modules configuration
+via a file (usually, it is either ``/etc/modules.conf`` or some file at
+``/etc/modules-load.d/``, but the actual place depends on your
+distribution), with this content::
+
+    options saa7134 card=13 # Assuming that your card type is #13
 
 
 Changes / Fixes
 ---------------
 
-Please mail me unified diffs ("diff -u") with your changes, and don't
-forget to tell me what it changes / which problem it fixes / whatever
+Please mail to linux-media AT vger.kernel.org unified diffs against
+the linux media git tree:
+
+    https://git.linuxtv.org/media_tree.git/
+
+This is done by committing a patch at a clone of the git tree and
+submitting the patch using ``git send-email``. Don't forget to
+describe at the lots  what it changes / which problem it fixes / whatever
 it is good for ...
 
 
@@ -52,7 +79,7 @@ Known Problems
 
 * The tuner for the flyvideos isn't detected automatically and the
   default might not work for you depending on which version you have.
-  There is a tuner= insmod option to override the driver's default.
+  There is a ``tuner=`` insmod option to override the driver's default.
 
 Credits
 -------