diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index a1a02cdd8883..3ac81019ae6f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1223,37 +1223,6 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, } /** - * drm_rotation_simplify() - Try to simplify the rotation - * @rotation: Rotation to be simplified - * @supported_rotations: Supported rotations - * - * Attempt to simplify the rotation to a form that is supported. - * Eg. if the hardware supports everything except DRM_REFLECT_X - * one could call this function like this: - * - * drm_rotation_simplify(rotation, DRM_ROTATE_0 | - * DRM_ROTATE_90 | DRM_ROTATE_180 | - * DRM_ROTATE_270 | DRM_REFLECT_Y); - * - * to eliminate the DRM_ROTATE_X flag. Depending on what kind of - * transforms the hardware supports, this function may not - * be able to produce a supported transform, so the caller should - * check the result afterwards. - */ -unsigned int drm_rotation_simplify(unsigned int rotation, - unsigned int supported_rotations) -{ - if (rotation & ~supported_rotations) { - rotation ^= DRM_REFLECT_X | DRM_REFLECT_Y; - rotation = (rotation & DRM_REFLECT_MASK) | - BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); - } - - return rotation; -} -EXPORT_SYMBOL(drm_rotation_simplify); - -/** * drm_mode_config_init - initialize DRM mode_configuration structure * @dev: DRM device * @@ -1369,24 +1338,6 @@ void drm_mode_config_cleanup(struct drm_device *dev) } EXPORT_SYMBOL(drm_mode_config_cleanup); -struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, - unsigned int supported_rotations) -{ - static const struct drm_prop_enum_list props[] = { - { __builtin_ffs(DRM_ROTATE_0) - 1, "rotate-0" }, - { __builtin_ffs(DRM_ROTATE_90) - 1, "rotate-90" }, - { __builtin_ffs(DRM_ROTATE_180) - 1, "rotate-180" }, - { __builtin_ffs(DRM_ROTATE_270) - 1, "rotate-270" }, - { __builtin_ffs(DRM_REFLECT_X) - 1, "reflect-x" }, - { __builtin_ffs(DRM_REFLECT_Y) - 1, "reflect-y" }, - }; - - return drm_property_create_bitmask(dev, 0, "rotation", - props, ARRAY_SIZE(props), - supported_rotations); -} -EXPORT_SYMBOL(drm_mode_create_rotation_property); - /** * DOC: Tile group * |