media: userspace-api/media: finalize stateless FWHT codec docs

Document V4L2_CTRL_TYPE_FWHT_PARAMS and p_fwht_params. Also
improve the V4L2_PIX_FMT_FWHT_STATELESS description.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/userspace-api/media/v4l/pixfmt-compressed.rst

@@ -217,4 +217,6 @@ Compressed Formats
       - ``V4L2_PIX_FMT_FWHT_STATELESS``
       - 'SFWH'
       - Same format as V4L2_PIX_FMT_FWHT but requires stateless codec implementation.
-	See the :ref:`associated Codec Control IDs <v4l2-mpeg-fwht>`.
+        Metadata associated with the frame to decode is required to be passed
+        through the ``V4L2_CID_STATELESS_FWHT_PARAMS`` control.
+	See the :ref:`associated Codec Control ID <codec-stateless-fwht>`.

Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst

@@ -208,6 +208,10 @@ still cause this situation.
       - ``p_h264_decode_params``
       - A pointer to a struct :c:type:`v4l2_ctrl_h264_decode_params`. Valid if this control is
         of type ``V4L2_CTRL_TYPE_H264_DECODE_PARAMS``.
+    * - struct :c:type:`v4l2_ctrl_fwht_params` *
+      - ``p_fwht_params``
+      - A pointer to a struct :c:type:`v4l2_ctrl_fwht_params`. Valid if this control is
+        of type ``V4L2_CTRL_TYPE_FWHT_PARAMS``.
     * - void *
       - ``ptr``
       - A pointer to a compound type which can be an N-dimensional array

Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst

@@ -462,6 +462,12 @@ See also the examples in :ref:`control`.
       - n/a
       - A struct :c:type:`v4l2_ctrl_h264_decode_params`, containing H264
 	decode parameters for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_FWHT_PARAMS``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_fwht_params`, containing FWHT
+	parameters for stateless video decoders.
     * - ``V4L2_CTRL_TYPE_HEVC_SPS``
       - n/a
       - n/a

Documentation/userspace-api/media/videodev2.h.rst.exceptions

@@ -146,6 +146,7 @@ replace symbol V4L2_CTRL_TYPE_HEVC_SPS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_HEVC_PPS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_AREA :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_FWHT_PARAMS :c:type:`v4l2_ctrl_type`
 
 # V4L2 capability defines
 replace define V4L2_CAP_VIDEO_CAPTURE device-capabilities