MDP_HDR_TOP
MM_REG_WRITE_MASK(cmd, subsys_id, base, MDP_HDR_TOP, BIT(0), BIT(0));
MM_REG_WRITE_MASK(cmd, subsys_id, base, MDP_HDR_TOP, reg, BIT(29) | BIT(28));
MM_REG_WRITE_MASK(cmd, subsys_id, base, MDP_HDR_TOP, reg, BIT(6) | BIT(5));