system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-22 03:55:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/atomic: Reject attempts to use multiple rotation angles at once

Browse source 
The rotation property should only accept exactly one rotation angle
at once. Let's reject attempts to set none or multiple angles.

Testcase: igt/kms_rotation_crc/bad-rotation
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1474907460-10717-3-git-send-email-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2016-09-26 19:30:47 +03:00 committed by Daniel Vetter
parent bd2ef25d92
commit 6e0c7c3358
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/drm_atomic.c
View file

@ -706,6 +706,8 @@ int drm_atomic_plane_set_property(struct drm_plane *plane,
} else if (property == config->prop_src_h) {
state->src_h = val;
} else if (property == config->rotation_property) {
if (!is_power_of_2(val & DRM_ROTATE_MASK))
return -EINVAL;
state->rotation = val;
} else if (property == plane->zpos_property) {
state->zpos = val;