[media] V4L2: Add documentation for SDI timings and related flags

Describe new needed constants defined by SDI format.
Signed-off-by: NCharles-Antoine Couret <charles-antoine.couret@nexvision.fr>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/v4l/vidioc-enuminput.rst

@@ -272,17 +272,34 @@ at index zero, incrementing by one until the driver returns ``EINVAL``.
 
     -  .. row 11
 
-       -  :cspan:`2` Digital Video
+       -  ``V4L2_IN_ST_NO_V_LOCK``
+
+       -  0x00000400
+
+       -  No vertical sync lock.
 
     -  .. row 12
 
+       -  ``V4L2_IN_ST_NO_STD_LOCK``
+
+       -  0x00000800
+
+       -  No standard format lock in case of auto-detection format
+	  by the component.
+
+    -  .. row 13
+
+       -  :cspan:`2` Digital Video
+
+    -  .. row 14
+
        -  ``V4L2_IN_ST_NO_SYNC``
 
        -  0x00010000
 
        -  No synchronization lock.
 
-    -  .. row 13
+    -  .. row 15
 
        -  ``V4L2_IN_ST_NO_EQU``
 
@@ -290,7 +307,7 @@ at index zero, incrementing by one until the driver returns ``EINVAL``.
 
        -  No equalizer lock.
 
-    -  .. row 14
+    -  .. row 16
 
        -  ``V4L2_IN_ST_NO_CARRIER``
 
@@ -298,11 +315,11 @@ at index zero, incrementing by one until the driver returns ``EINVAL``.
 
        -  Carrier recovery failed.
 
-    -  .. row 15
+    -  .. row 17
 
        -  :cspan:`2` VCR and Set-Top Box
 
-    -  .. row 16
+    -  .. row 18
 
        -  ``V4L2_IN_ST_MACROVISION``
 
@@ -312,7 +329,7 @@ at index zero, incrementing by one until the driver returns ``EINVAL``.
 	  signal to confuse video recorders. When this flag is set
 	  Macrovision has been detected.
 
-    -  .. row 17
+    -  .. row 19
 
        -  ``V4L2_IN_ST_NO_ACCESS``
 
@@ -320,7 +337,7 @@ at index zero, incrementing by one until the driver returns ``EINVAL``.
 
        -  Conditional access denied.
 
-    -  .. row 18
+    -  .. row 20
 
        -  ``V4L2_IN_ST_VTR``
 

Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst

@@ -352,6 +352,13 @@ EBUSY
 
        -  The timings follow the VESA Generalized Timings Formula standard
 
+    -  .. row 7
+
+       -  ``V4L2_DV_BT_STD_SDI``
+
+       -  The timings follow the SDI Timings standard.
+	  There are no horizontal syncs/porches at all in this format.
+	  Total blanking timings must be set in hsync or vsync fields only.
 
 .. tabularcolumns:: |p{6.0cm}|p{11.5cm}|
 
@@ -424,3 +431,11 @@ EBUSY
 	  R'G'B' values use limited range (i.e. 16-235) as opposed to full
 	  range (i.e. 0-255). All formats defined in CEA-861 except for the
 	  640x480p59.94 format are CE formats.
+
+    -  .. row 8
+
+       -  ``V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE``
+
+       -  Some formats like SMPTE-125M have an interlaced signal with a odd
+	  total height. For these formats, if this flag is set, the first
+	  field has the extra line. Else, it is the second field.