REG_EASRC_CS3
ret = regmap_read(easrc->regmap, REG_EASRC_CS3(mc->regbase), ®val[3]);
ret = regmap_update_bits_check(easrc->regmap, REG_EASRC_CS3(mc->regbase),
{REG_EASRC_CS3(0), 0x00000000},
{REG_EASRC_CS3(1), 0x00000000},
{REG_EASRC_CS3(2), 0x00000000},
{REG_EASRC_CS3(3), 0x00000000},