NV_PRAMDAC_VPLL_COEFF
if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS && reg1 >= NV_PRAMDAC_VPLL_COEFF) {
if (reg1 == NV_PRAMDAC_VPLL_COEFF) {
uint32_t pllreg = head ? NV_RAMDAC_VPLL2 : NV_PRAMDAC_VPLL_COEFF;