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Diffstat (limited to 'drivers/gpu/drm/drm_blend.c')
| -rw-r--r-- | drivers/gpu/drm/drm_blend.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c index 402b62d3f072..0c78ca386cbe 100644 --- a/drivers/gpu/drm/drm_blend.c +++ b/drivers/gpu/drm/drm_blend.c @@ -101,6 +101,28 @@ * Without this property the rectangle is only scaled, but not rotated or * reflected. * + * Possbile values: + * + * "rotate-<degrees>": + * Signals that a drm plane is rotated <degrees> degrees in counter + * clockwise direction. + * + * "reflect-<axis>": + * Signals that the contents of a drm plane is reflected along the + * <axis> axis, in the same way as mirroring. + * + * reflect-x:: + * + * |o | | o| + * | | -> | | + * | v| |v | + * + * reflect-y:: + * + * |o | | ^| + * | | -> | | + * | v| |o | + * * zpos: * Z position is set up with drm_plane_create_zpos_immutable_property() and * drm_plane_create_zpos_property(). It controls the visibility of overlapping |