nvkm_therm_fan_set
nvkm_therm_fan_set(therm, immd, duty);
nvkm_therm_fan_set(therm, true, therm->fan->percent);
return nvkm_therm_fan_set(therm, true, percent);
int nvkm_therm_fan_set(struct nvkm_therm *, bool now, int percent);
nvkm_therm_fan_set(therm, true, 100);