S1DREG_BBLT_HEIGHT0
s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT0, (height & 0xff) - 1);
s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT0, ((rect->height) & 0x00ff) - 1);