ISP176x_DC_EPINDEX
regmap_reg_range(ISP176x_DC_BUFLEN, ISP176x_DC_EPINDEX),
[DC_EP0SETUP] = REG_FIELD(ISP176x_DC_EPINDEX, 5, 5),
[DC_ENDPIDX] = REG_FIELD(ISP176x_DC_EPINDEX, 1, 4),
[DC_EPDIR] = REG_FIELD(ISP176x_DC_EPINDEX, 0, 0),