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| author | Dave Airlie <airlied@redhat.com> | 2023-01-16 15:33:22 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2023-01-16 15:33:28 +1000 |
| commit | c37ea39c1fa880da0d7fd2c719e5c96be19f0fc5 (patch) | |
| tree | 1d4bd8a5ab631cd54ebb326fc39160a2be84e969 /drivers/gpu/drm/drm_plane.c | |
| parent | 1f1c24dee225fc82472627986997ba6aef309fc2 (diff) | |
| parent | 6e41acd2e5353c5362e0d5c2f5ba495c54ff555e (diff) | |
Merge tag 'drm-misc-next-2023-01-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.3:
UAPI Changes:
* fourcc: Document Open Source user waiver
Cross-subsystem Changes:
* firmware: fix color-format selection for system framebuffers
Core Changes:
* format-helper: Add conversion from XRGB8888 to various sysfb formats;
Make XRGB8888 the only driver-emulated legacy format
* fb-helper: Avoid blank consoles from selecting an incorrect color format
* probe-helper: Enable/disable HPD on connectors plus driver updates
* Use drm_dbg_ helpers in several places
* docs: Document defaults for CRTC backgrounds; Document use of drm_minor
Driver Changes:
* arm/hdlcd: Use new debugfs helpers
* gud: Use new debugfs helpers
* panel: Support Visionox VTDR6130 AMOLED DSI; Support Himax HX8394; Convert
many drivers to common generic DSI write-sequence helper
* v3d: Do not opencode drm_gem_object_lookup()
* vc4: Various HVS an CRTC fixes
* vkms: Fix SEGFAULT from incorrect GEM-buffer mapping
* Convert various drivers to i2c probe_new()
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y8ADeSzZDj+tpibF@linux-uq9g
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 33357629a7f5..24e7998d1731 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -46,6 +46,11 @@ * properties that specify how the pixels are positioned and blended, like * rotation or Z-position. All these properties are stored in &drm_plane_state. * + * Unless explicitly specified (via CRTC property or otherwise), the active area + * of a CRTC will be black by default. This means portions of the active area + * which are not covered by a plane will be black, and alpha blending of any + * planes with the CRTC background will blend with black at the lowest zpos. + * * To create a plane, a KMS drivers allocates and zeroes an instances of * &struct drm_plane (possibly as part of a larger structure) and registers it * with a call to drm_universal_plane_init(). |