LOONGSON2_MMC_REG_IEN
regmap_write(host->regmap, LOONGSON2_MMC_REG_IEN, LOONGSON2_MMC_INT_CLEAR);
regmap_update_bits(host->regmap, LOONGSON2_MMC_REG_IEN, LOONGSON2_MMC_INT_SDIOIRQ, enable);
.max_register = LOONGSON2_MMC_REG_IEN,