drm/atomic: refactor planes names

We are currently using primary / overlay planes drm objects, assuming that primary plane is osd and overlay plane is video.
This commit is doing two things :
  - replace the primary / overlay planes members with osd and video planes member without the assumption
  - Add two more options to determine which one of the primary / overlay is associated to osd / video.
  - It will default osd to overlay and video to primary if unspecified

1 files changed, 14 insertions, 0 deletions

diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst
index 96ab1f7cf9..3fb2567b7d 100644
--- a/DOCS/man/vo.rst
+++ b/DOCS/man/vo.rst
@@ -488,6 +488,20 @@ Available video output drivers are:
         Mode ID to use (resolution and frame rate).
         (default: 0)
 
+    ``--drm-osd-plane-id=<number>``
+        Select the DRM planed index to use for OSD (or OSD and video).
+        Index is zero based, and related to crtc.
+        When using this option with drm_prime renderer, it will only affect
+        the OSD contents. Otherwise it will set OSD & video plane.
+        (default: primary plane)
+
+    ``--drm-video-plane-id=<number>``
+        Select the DRM planed index to use for video layer.
+        Index is zero based, and related to crtc.
+        This option only has effect when using the drm_prime renderer (which
+        supports several layers) together with ``vo=gpu`` and ``gpu-context=drm``.
+        (default: first overlay plane)
+
     ``--drm-format=<xrgb8888,xrgb2101010>``
         Select the DRM format to use (default: xrgb8888). This allows you to
         choose the bit depth of the DRM mode. xrgb8888 is your usual 24 bit per