diff options
Diffstat (limited to 'include/drm/drm_atomic_helper.h')
| -rw-r--r-- | include/drm/drm_atomic_helper.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 2a0b17842402..ab778aad7359 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -34,6 +34,15 @@ #include <drm/drm_atomic_state_helper.h> #include <drm/drm_util.h> +/* + * Drivers that don't allow primary plane scaling may pass this macro in place + * of the min/max scale parameters of the plane-state checker function. + * + * Due to src being in 16.16 fixed point and dest being in integer pixels, + * 1<<16 represents no scaling. + */ +#define DRM_PLANE_HELPER_NO_SCALING (1<<16) + struct drm_atomic_state; struct drm_private_obj; struct drm_private_state; |