923  * drm_client_rotation() - Check the initial rotation value
925  * @rotation: Returned rotation value
928  * to match the rotation needed on its connector.
933  * True if the plane can do the rotation, false otherwise.
935 bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation)  in drm_client_rotation()  argument
948 		*rotation = DRM_MODE_ROTATE_180;  in drm_client_rotation()
951 		*rotation = DRM_MODE_ROTATE_90;  in drm_client_rotation()
954 		*rotation = DRM_MODE_ROTATE_270;  in drm_client_rotation()
957 		*rotation = DRM_MODE_ROTATE_0;  in drm_client_rotation()
961 	 * The panel already defined the default rotation  in drm_client_rotation()
978 		panel_rot = ilog2(*rotation & DRM_MODE_ROTATE_MASK);  in drm_client_rotation()
982 		panel_rest = *rotation & ~DRM_MODE_ROTATE_MASK;  in drm_client_rotation()
986 		*rotation = (1 << sum_rot) | sum_rest;  in drm_client_rotation()
990 	 * TODO: support 90 / 270 degree hardware rotation,  in drm_client_rotation()
994 	if (((*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_0 &&  in drm_client_rotation()
995 	     (*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_180) ||  in drm_client_rotation()
1002 	if (!(*rotation & valid_mask))  in drm_client_rotation()
1037 		plane_state->rotation = DRM_MODE_ROTATE_0;  in drm_client_modeset_commit_atomic()
1050 		unsigned int rotation;  in drm_client_modeset_commit_atomic()  local
1052 		if (drm_client_rotation(mode_set, &rotation)) {  in drm_client_modeset_commit_atomic()
1057 			plane_state->rotation = rotation;  in drm_client_modeset_commit_atomic()