EMC1812_THRM_HYS_ADDR
ret = regmap_read(data->regmap, EMC1812_THRM_HYS_ADDR, &hyst);
ret = regmap_read(data->regmap, EMC1812_THRM_HYS_ADDR, &hyst);
ret = regmap_write(data->regmap, EMC1812_THRM_HYS_ADDR, hyst);
ret = regmap_write(priv->regmap, EMC1812_THRM_HYS_ADDR, 0x0A);