DC_CHIP_ID_HIGH
[DC_CHIP_ID_HIGH] = REG_FIELD(ISP176x_DC_CHIPID, 16, 31),
[DC_CHIP_ID_HIGH] = REG_FIELD(ISP1763_DC_CHIPID_HIGH, 0, 15),
chipid = isp1760_udc_read(udc, DC_CHIP_ID_HIGH) << 16;