[media] v4l: drop v4l2_buffer.input and V4L2_BUF_FLAG_INPUT

Remove input field in struct v4l2_buffer and flag V4L2_BUF_FLAG_INPUT which
tells the former is valid. The flag is used by no driver currently.

Also change the documentation accordingly.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 20 insertions, 20 deletions

diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml
index ea42ef824948..a8b374930405 100644
--- a/Documentation/DocBook/media/v4l/compat.xml
+++ b/Documentation/DocBook/media/v4l/compat.xml
@@ -2458,6 +2458,18 @@ details.</para>
       </orderedlist>
     </section>
 
+    <section>
+      <title>V4L2 in Linux 3.5</title>
+      <orderedlist>
+	<listitem>
+	  <para>Replaced <structfield>input</structfield> in
+	  <structname>v4l2_buffer</structname> by
+	  <structfield>reserved2</structfield> and removed
+	  <constant>V4L2_BUF_FLAG_INPUT</constant>.</para>
+	</listitem>
+      </orderedlist>
+    </section>
+
     <section id="other">
       <title>Relation of V4L2 to other Linux multimedia APIs</title>
 
diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml
index fd6aca2922b6..1885cc0755cb 100644
--- a/Documentation/DocBook/media/v4l/io.xml
+++ b/Documentation/DocBook/media/v4l/io.xml
@@ -683,14 +683,12 @@ memory, set by the application. See <xref linkend="userp" /> for details.
 	  </row>
 	  <row>
 	    <entry>__u32</entry>
-	    <entry><structfield>input</structfield></entry>
+	    <entry><structfield>reserved2</structfield></entry>
 	    <entry></entry>
-	    <entry>Some video capture drivers support rapid and
-synchronous video input changes, a function useful for example in
-video surveillance applications. For this purpose applications set the
-<constant>V4L2_BUF_FLAG_INPUT</constant> flag, and this field to the
-number of a video input as in &v4l2-input; field
-<structfield>index</structfield>.</entry>
+	    <entry>A place holder for future extensions and custom
+(driver defined) buffer types
+<constant>V4L2_BUF_TYPE_PRIVATE</constant> and higher. Applications
+should set this to 0.</entry>
 	  </row>
 	  <row>
 	    <entry>__u32</entry>
@@ -923,13 +921,6 @@ Drivers set or clear this flag when the <constant>VIDIOC_DQBUF</constant>
 ioctl is called.</entry>
 	  </row>
 	  <row>
-	    <entry><constant>V4L2_BUF_FLAG_INPUT</constant></entry>
-	    <entry>0x0200</entry>
-	    <entry>The <structfield>input</structfield> field is valid.
-Applications set or clear this flag before calling the
-<constant>VIDIOC_QBUF</constant> ioctl.</entry>
-	  </row>
-	  <row>
 	    <entry><constant>V4L2_BUF_FLAG_PREPARED</constant></entry>
 	    <entry>0x0400</entry>
 	    <entry>The buffer has been prepared for I/O and can be queued by the
diff --git a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml
index 9caa49af580f..77ff5be0809d 100644
--- a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml
@@ -71,12 +71,9 @@ initialize the <structfield>bytesused</structfield>,
 <structfield>field</structfield> and
 <structfield>timestamp</structfield> fields, see <xref
 linkend="buffer" /> for details.
-Applications must also set <structfield>flags</structfield> to 0. If a driver
-supports capturing from specific video inputs and you want to specify a video
-input, then <structfield>flags</structfield> should be set to
-<constant>V4L2_BUF_FLAG_INPUT</constant> and the field
-<structfield>input</structfield> must be initialized to the desired input.
-The <structfield>reserved</structfield> field must be set to 0. When using
+Applications must also set <structfield>flags</structfield> to 0.
+The <structfield>reserved2</structfield> and
+<structfield>reserved</structfield> fields must be set to 0. When using
 the <link linkend="planar-apis">multi-planar API</link>, the
 <structfield>m.planes</structfield> field must contain a userspace pointer
 to a filled-in array of &v4l2-plane; and the <structfield>length</structfield>