Add RGB666_1X24_CPADHI media bus format

Commit 9e74d2926a28 ("staging: imx-drm: add LVDS666 support for parallel
display") describes a 24-bit bus format where three 6-bit components each
take the lower part of 8 bits with the two high bits zero padded. Add a
component-wise padded media bus format RGB666_1X24_CPADHI to support this
connection.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>

1 files changed, 33 insertions, 1 deletions

diff --git a/Documentation/DocBook/media/v4l/subdev-formats.xml b/Documentation/DocBook/media/v4l/subdev-formats.xml
index 8d1f62402f88..18b71aff48c9 100644
--- a/Documentation/DocBook/media/v4l/subdev-formats.xml
+++ b/Documentation/DocBook/media/v4l/subdev-formats.xml
@@ -91,7 +91,9 @@ see <xref linkend="colorspaces" />.</entry>
         <listitem><para>For formats where the total number of bits per pixel is smaller
         than the number of bus samples per pixel times the bus width, a padding
         value stating if the bytes are padded in their most high order bits
-        (PADHI) or low order bits (PADLO).</para></listitem>
+        (PADHI) or low order bits (PADLO). A "C" prefix is used for component-wise
+        padding in the most high order bits (CPADHI) or low order bits (CPADLO)
+        of each separate component.</para></listitem>
         <listitem><para>For formats where the number of bus samples per pixel is larger
         than 1, an endianness value stating if the pixel is transferred MSB first
         (BE) or LSB first (LE).</para></listitem>
@@ -480,6 +482,36 @@ see <xref linkend="colorspaces" />.</entry>
               <entry>b<subscript>1</subscript></entry>
               <entry>b<subscript>0</subscript></entry>
             </row>
+            <row id="MEDIA-BUS-FMT-RGB666-1X24_CPADHI">
+              <entry>MEDIA_BUS_FMT_RGB666_1X24_CPADHI</entry>
+              <entry>0x1015</entry>
+              <entry></entry>
+              &dash-ent-8;
+              <entry>0</entry>
+              <entry>0</entry>
+              <entry>r<subscript>5</subscript></entry>
+              <entry>r<subscript>4</subscript></entry>
+              <entry>r<subscript>3</subscript></entry>
+              <entry>r<subscript>2</subscript></entry>
+              <entry>r<subscript>1</subscript></entry>
+              <entry>r<subscript>0</subscript></entry>
+              <entry>0</entry>
+              <entry>0</entry>
+              <entry>g<subscript>5</subscript></entry>
+              <entry>g<subscript>4</subscript></entry>
+              <entry>g<subscript>3</subscript></entry>
+              <entry>g<subscript>2</subscript></entry>
+              <entry>g<subscript>1</subscript></entry>
+              <entry>g<subscript>0</subscript></entry>
+              <entry>0</entry>
+              <entry>0</entry>
+              <entry>b<subscript>5</subscript></entry>
+              <entry>b<subscript>4</subscript></entry>
+              <entry>b<subscript>3</subscript></entry>
+              <entry>b<subscript>2</subscript></entry>
+              <entry>b<subscript>1</subscript></entry>
+              <entry>b<subscript>0</subscript></entry>
+            </row>
             <row id="MEDIA-BUS-FMT-BGR888-1X24">
               <entry>MEDIA_BUS_FMT_BGR888_1X24</entry>
               <entry>0x1013</entry>