RSTV0910_P2_DMDCFGMD
read_reg(state, RSTV0910_P2_DMDCFGMD + state->regoff, ®_dmdcfgmd);
write_reg(state, RSTV0910_P2_DMDCFGMD + state->regoff,
read_reg(state, RSTV0910_P2_DMDCFGMD + state->regoff, &tmp);
write_reg(state, RSTV0910_P2_DMDCFGMD + state->regoff, tmp);