CHTYPE_PROTOCOL
val = reg_encode(reg, CHTYPE_PROTOCOL, type);
type >>= hweight32(reg_fmask(reg, CHTYPE_PROTOCOL));
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(2, 0),
[CHTYPE_PROTOCOL] = GENMASK(6, 0),