EV_CHTYPE
val = reg_encode(reg, EV_CHTYPE, GSI_CHANNEL_TYPE_GPI);
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(3, 0),
[EV_CHTYPE] = GENMASK(6, 0),