DP0CTL
ret = regmap_read(tc->regmap, DP0CTL, &value);
ret = regmap_write(tc->regmap, DP0CTL, 0);
ret = regmap_write(tc->regmap, DP0CTL,
ret = regmap_write(tc->regmap, DP0CTL, 0);
ret = regmap_write(tc->regmap, DP0CTL, value);
ret = regmap_write(tc->regmap, DP0CTL, value);
ret = regmap_update_bits(tc->regmap, DP0CTL, VID_EN, 0);
case DP0CTL: