diff options
| author | Dave Airlie <airlied@redhat.com> | 2013-02-24 12:38:22 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-02-24 12:38:22 +1000 |
| commit | a3b1097c037ae992510fe8f1e933072280ef19b0 (patch) | |
| tree | 1411de86b91f4407f3368b47b2c68ea6f6345b01 /Documentation | |
| parent | c976cb37a95a8dcaf23d04d6487fbacc33d3c913 (diff) | |
| parent | e450fcc6669705ef49784080ac6dd8513df37763 (diff) | |
Merge branch 'drm/tegra-for-3.9' of git://anongit.freedesktop.org/tegra/linux into drm-next
Thierry writes:
"Add support for 2 hardware overlays found on Tegra. These support YUV
pixel formats and can be used as video overlays. .mode_set_base() is
implemented and support for VBLANK and page-flipping is added.
A few minor bug fixes are also included and a new debugfs file allows
to inspect the framebuffers attached to the Tegra DRM device."
* 'drm/tegra-for-3.9' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: Add list of framebuffers to debugfs
drm/tegra: Fix color expansion
drm/tegra: Split DC_CMD_STATE_CONTROL register write
drm/tegra: Implement page-flipping support
drm/tegra: Implement VBLANK support
drm/tegra: Implement .mode_set_base()
drm/tegra: Add plane support
drm/tegra: Remove bogus tegra_framebuffer structure
drm: Add consistency check for page-flipping
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/drm.tmpl | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl index 51e1904ac4c..a6428ddfcfc 100644 --- a/Documentation/DocBook/drm.tmpl +++ b/Documentation/DocBook/drm.tmpl @@ -1161,6 +1161,12 @@ int max_width, max_height;</synopsis> any new rendering to the frame buffer until the page flip completes. </para> <para> + If a page flip can be successfully scheduled the driver must set the + <code>drm_crtc-<fb</code> field to the new framebuffer pointed to + by <code>fb</code>. This is important so that the reference counting + on framebuffers stays balanced. + </para> + <para> If a page flip is already pending, the <methodname>page_flip</methodname> operation must return -<errorname>EBUSY</errorname>. |