[media] V4L: Add V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8 media bus format

This patch adds media bus pixel code for the interleaved JPEG/UYVY
image format used by S5C73MX Samsung cameras. This interleaved image
data is transferred on MIPI-CSI2 bus as User Defined Byte-based Data.
It also defines an experimental vendor and device specific media bus
formats section and adds related DocBook documentation.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Documentation/DocBook/media/v4l/compat.xml

@@ -2582,6 +2582,10 @@ ioctls.</para>
         <listitem>
 	  <para>Support for frequency band enumeration: &VIDIOC-ENUM-FREQ-BANDS; ioctl.</para>
         </listitem>
+        <listitem>
+	  <para>Vendor and device specific media bus pixel formats.
+	    <xref linkend="v4l2-mbus-vendor-spec-fmts" />.</para>
+        </listitem>
       </itemizedlist>
     </section>
 

Documentation/DocBook/media/v4l/subdev-formats.xml

@@ -2565,5 +2565,49 @@
 	</tgroup>
       </table>
     </section>
+
+    <section id="v4l2-mbus-vendor-spec-fmts">
+      <title>Vendor and Device Specific Formats</title>
+
+      <note>
+	<title>Experimental</title>
+	<para>This is an <link linkend="experimental">experimental</link>
+interface and may change in the future.</para>
+      </note>
+
+      <para>This section lists complex data formats that are either vendor or
+	device specific.
+      </para>
+
+      <para>The following table lists the existing vendor and device specific
+	formats.</para>
+
+      <table pgwide="0" frame="none" id="v4l2-mbus-pixelcode-vendor-specific">
+	<title>Vendor and device specific formats</title>
+	<tgroup cols="3">
+	  <colspec colname="id" align="left" />
+	  <colspec colname="code" align="left"/>
+	  <colspec colname="remarks" align="left"/>
+	  <thead>
+	    <row>
+	      <entry>Identifier</entry>
+	      <entry>Code</entry>
+	      <entry>Comments</entry>
+	    </row>
+	  </thead>
+	  <tbody valign="top">
+	    <row id="V4L2-MBUS-FMT-S5C-UYVY-JPEG-1X8">
+	      <entry>V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8</entry>
+	      <entry>0x5001</entry>
+	      <entry>
+		Interleaved raw UYVY and JPEG image format with embedded
+		meta-data used by Samsung S3C73MX camera sensors.
+	      </entry>
+	    </row>
+	  </tbody>
+	</tgroup>
+      </table>
+    </section>
+
   </section>
 </section>

include/linux/v4l2-mediabus.h

@@ -92,6 +92,11 @@ enum v4l2_mbus_pixelcode {
 
 	/* JPEG compressed formats - next is 0x4002 */
 	V4L2_MBUS_FMT_JPEG_1X8 = 0x4001,
+
+	/* Vendor specific formats - next is 0x5002 */
+
+	/* S5C73M3 sensor specific interleaved UYVY and JPEG */
+	V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8 = 0x5001,
 };
 
 /**