PEB2466_CR4
ret = regmap_write(peb2466->regmap, PEB2466_CR4(chan), slot);
{ .reg = PEB2466_CR4(0), .def = 0x00 },
{ .reg = PEB2466_CR4(1), .def = 0x00 },
{ .reg = PEB2466_CR4(2), .def = 0x00 },
{ .reg = PEB2466_CR4(3), .def = 0x00 },