901  * drm_client_rotation() - Check the initial rotation value
903  * @rotation: Returned rotation value
906  * to match the rotation needed on its connector.
911  * True if the plane can do the rotation, false otherwise.
913 bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation)  in drm_client_rotation()  argument
926 		*rotation = DRM_MODE_ROTATE_180;  in drm_client_rotation()
929 		*rotation = DRM_MODE_ROTATE_90;  in drm_client_rotation()
932 		*rotation = DRM_MODE_ROTATE_270;  in drm_client_rotation()
935 		*rotation = DRM_MODE_ROTATE_0;  in drm_client_rotation()
939 	 * The panel already defined the default rotation  in drm_client_rotation()
956 		panel_rot = ilog2(*rotation & DRM_MODE_ROTATE_MASK);  in drm_client_rotation()
960 		panel_rest = *rotation & ~DRM_MODE_ROTATE_MASK;  in drm_client_rotation()
964 		*rotation = (1 << sum_rot) | sum_rest;  in drm_client_rotation()
968 	 * TODO: support 90 / 270 degree hardware rotation,  in drm_client_rotation()
972 	if (((*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_0 &&  in drm_client_rotation()
973 	     (*rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_180) ||  in drm_client_rotation()
980 	if (!(*rotation & valid_mask))  in drm_client_rotation()
1015 		plane_state->rotation = DRM_MODE_ROTATE_0;  in drm_client_modeset_commit_atomic()
1028 		unsigned int rotation;  in drm_client_modeset_commit_atomic()  local
1030 		if (drm_client_rotation(mode_set, &rotation)) {  in drm_client_modeset_commit_atomic()
1035 			plane_state->rotation = rotation;  in drm_client_modeset_commit_atomic()