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1/*2 * Copyright 2021 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#define nvkm_uoutp(p) container_of((p), struct nvkm_outp, object)23#include "outp.h"24#include "dp.h"25#include "head.h"26#include "ior.h"27 28#include <subdev/i2c.h>29 30#include <nvif/if0012.h>31 32static int33nvkm_uoutp_mthd_dp_mst_vcpi(struct nvkm_outp *outp, void *argv, u32 argc)34{35 struct nvkm_ior *ior = outp->ior;36 union nvif_outp_dp_mst_vcpi_args *args = argv;37 38 if (argc != sizeof(args->v0) || args->v0.version != 0)39 return -ENOSYS;40 if (!ior->func->dp || !ior->func->dp->vcpi || !nvkm_head_find(outp->disp, args->v0.head))41 return -EINVAL;42 43 ior->func->dp->vcpi(ior, args->v0.head, args->v0.start_slot, args->v0.num_slots,44 args->v0.pbn, args->v0.aligned_pbn);45 return 0;46}47 48static int49nvkm_uoutp_mthd_dp_mst_id_put(struct nvkm_outp *outp, void *argv, u32 argc)50{51 union nvif_outp_dp_mst_id_put_args *args = argv;52 53 if (argc != sizeof(args->v0) || args->v0.version != 0)54 return -ENOSYS;55 if (!outp->func->dp.mst_id_put)56 return -EINVAL;57 58 return outp->func->dp.mst_id_put(outp, args->v0.id);59}60 61static int62nvkm_uoutp_mthd_dp_mst_id_get(struct nvkm_outp *outp, void *argv, u32 argc)63{64 union nvif_outp_dp_mst_id_get_args *args = argv;65 66 if (argc != sizeof(args->v0) || args->v0.version != 0)67 return -ENOSYS;68 if (!outp->func->dp.mst_id_get)69 return -EINVAL;70 71 return outp->func->dp.mst_id_get(outp, &args->v0.id);72}73 74static int75nvkm_uoutp_mthd_dp_sst(struct nvkm_outp *outp, void *argv, u32 argc)76{77 union nvif_outp_dp_sst_args *args = argv;78 struct nvkm_disp *disp = outp->disp;79 struct nvkm_ior *ior = outp->ior;80 81 if (argc != sizeof(args->v0) || args->v0.version != 0)82 return -ENOSYS;83 84 if (!ior->func->dp || !nvkm_head_find(disp, args->v0.head))85 return -EINVAL;86 if (!ior->func->dp->sst)87 return 0;88 89 return ior->func->dp->sst(ior, args->v0.head,90 outp->dp.dpcd[DPCD_RC02] & DPCD_RC02_ENHANCED_FRAME_CAP,91 args->v0.watermark, args->v0.hblanksym, args->v0.vblanksym);92}93 94static int95nvkm_uoutp_mthd_dp_drive(struct nvkm_outp *outp, void *argv, u32 argc)96{97 union nvif_outp_dp_drive_args *args = argv;98 99 if (argc != sizeof(args->v0) || args->v0.version != 0)100 return -ENOSYS;101 if (!outp->func->dp.drive)102 return -EINVAL;103 104 return outp->func->dp.drive(outp, args->v0.lanes, args->v0.pe, args->v0.vs);105}106 107static int108nvkm_uoutp_mthd_dp_train(struct nvkm_outp *outp, void *argv, u32 argc)109{110 union nvif_outp_dp_train_args *args = argv;111 112 if (argc != sizeof(args->v0) || args->v0.version != 0)113 return -ENOSYS;114 if (!outp->func->dp.train)115 return -EINVAL;116 117 if (!args->v0.retrain) {118 memcpy(outp->dp.dpcd, args->v0.dpcd, sizeof(outp->dp.dpcd));119 outp->dp.lttprs = args->v0.lttprs;120 outp->dp.lt.nr = args->v0.link_nr;121 outp->dp.lt.bw = args->v0.link_bw / 27000;122 outp->dp.lt.mst = args->v0.mst;123 outp->dp.lt.post_adj = args->v0.post_lt_adj;124 }125 126 return outp->func->dp.train(outp, args->v0.retrain);127}128 129static int130nvkm_uoutp_mthd_dp_rates(struct nvkm_outp *outp, void *argv, u32 argc)131{132 union nvif_outp_dp_rates_args *args = argv;133 134 if (argc != sizeof(args->v0) || args->v0.version != 0)135 return -ENOSYS;136 if (args->v0.rates > ARRAY_SIZE(outp->dp.rate))137 return -EINVAL;138 139 for (int i = 0; i < args->v0.rates; i++) {140 outp->dp.rate[i].dpcd = args->v0.rate[i].dpcd;141 outp->dp.rate[i].rate = args->v0.rate[i].rate;142 }143 144 outp->dp.rates = args->v0.rates;145 146 if (outp->func->dp.rates)147 outp->func->dp.rates(outp);148 149 return 0;150}151 152static int153nvkm_uoutp_mthd_dp_aux_xfer(struct nvkm_outp *outp, void *argv, u32 argc)154{155 union nvif_outp_dp_aux_xfer_args *args = argv;156 157 if (argc != sizeof(args->v0) || args->v0.version != 0)158 return -ENOSYS;159 if (!outp->func->dp.aux_xfer)160 return -EINVAL;161 162 return outp->func->dp.aux_xfer(outp, args->v0.type, args->v0.addr,163 args->v0.data, &args->v0.size);164}165 166static int167nvkm_uoutp_mthd_dp_aux_pwr(struct nvkm_outp *outp, void *argv, u32 argc)168{169 union nvif_outp_dp_aux_pwr_args *args = argv;170 171 if (argc != sizeof(args->v0) || args->v0.version != 0)172 return -ENOSYS;173 if (!outp->func->dp.aux_pwr)174 return -EINVAL;175 176 return outp->func->dp.aux_pwr(outp, !!args->v0.state);177}178 179static int180nvkm_uoutp_mthd_hda_eld(struct nvkm_outp *outp, void *argv, u32 argc)181{182 struct nvkm_ior *ior = outp->ior;183 union nvif_outp_hda_eld_args *args = argv;184 185 if (argc < sizeof(args->v0) || args->v0.version != 0)186 return -ENOSYS;187 argc -= sizeof(args->v0);188 189 if (!ior->hda || !nvkm_head_find(outp->disp, args->v0.head))190 return -EINVAL;191 if (argc > 0x60)192 return -E2BIG;193 194 if (argc && args->v0.data[0]) {195 if (outp->info.type == DCB_OUTPUT_DP)196 ior->func->dp->audio(ior, args->v0.head, true);197 else198 if (ior->func->hdmi->audio)199 ior->func->hdmi->audio(ior, args->v0.head, true);200 201 ior->func->hda->hpd(ior, args->v0.head, true);202 ior->func->hda->eld(ior, args->v0.head, args->v0.data, argc);203 } else {204 ior->func->hda->hpd(ior, args->v0.head, false);205 206 if (outp->info.type == DCB_OUTPUT_DP)207 ior->func->dp->audio(ior, args->v0.head, false);208 else209 if (ior->func->hdmi->audio)210 ior->func->hdmi->audio(ior, args->v0.head, false);211 }212 213 return 0;214}215 216static int217nvkm_uoutp_mthd_infoframe(struct nvkm_outp *outp, void *argv, u32 argc)218{219 struct nvkm_ior *ior = outp->ior;220 union nvif_outp_infoframe_args *args = argv;221 ssize_t size = argc - sizeof(*args);222 223 if (argc < sizeof(args->v0) || args->v0.version != 0)224 return -ENOSYS;225 if (!nvkm_head_find(outp->disp, args->v0.head))226 return -EINVAL;227 228 switch (ior->func->hdmi ? args->v0.type : 0xff) {229 case NVIF_OUTP_INFOFRAME_V0_AVI:230 ior->func->hdmi->infoframe_avi(ior, args->v0.head, &args->v0.data, size);231 return 0;232 case NVIF_OUTP_INFOFRAME_V0_VSI:233 ior->func->hdmi->infoframe_vsi(ior, args->v0.head, &args->v0.data, size);234 return 0;235 default:236 break;237 }238 239 return -EINVAL;240}241 242static int243nvkm_uoutp_mthd_hdmi(struct nvkm_outp *outp, void *argv, u32 argc)244{245 union nvif_outp_hdmi_args *args = argv;246 struct nvkm_ior *ior = outp->ior;247 248 if (argc != sizeof(args->v0) || args->v0.version != 0)249 return -ENOSYS;250 251 if (!(outp->asy.head = nvkm_head_find(outp->disp, args->v0.head)))252 return -EINVAL;253 254 if (!ior->func->hdmi ||255 args->v0.max_ac_packet > 0x1f ||256 args->v0.rekey > 0x7f ||257 (args->v0.scdc && !ior->func->hdmi->scdc))258 return -EINVAL;259 260 if (!args->v0.enable) {261 ior->func->hdmi->infoframe_avi(ior, args->v0.head, NULL, 0);262 ior->func->hdmi->infoframe_vsi(ior, args->v0.head, NULL, 0);263 ior->func->hdmi->ctrl(ior, args->v0.head, false, 0, 0);264 return 0;265 }266 267 ior->func->hdmi->ctrl(ior, args->v0.head, args->v0.enable,268 args->v0.max_ac_packet, args->v0.rekey);269 if (ior->func->hdmi->scdc)270 ior->func->hdmi->scdc(ior, args->v0.khz, args->v0.scdc, args->v0.scdc_scrambling,271 args->v0.scdc_low_rates);272 273 return 0;274}275 276static int277nvkm_uoutp_mthd_lvds(struct nvkm_outp *outp, void *argv, u32 argc)278{279 union nvif_outp_lvds_args *args = argv;280 281 if (argc != sizeof(args->v0) || args->v0.version != 0)282 return -ENOSYS;283 if (outp->info.type != DCB_OUTPUT_LVDS)284 return -EINVAL;285 286 outp->lvds.dual = !!args->v0.dual;287 outp->lvds.bpc8 = !!args->v0.bpc8;288 return 0;289}290 291static int292nvkm_uoutp_mthd_bl_set(struct nvkm_outp *outp, void *argv, u32 argc)293{294 union nvif_outp_bl_get_args *args = argv;295 int ret;296 297 if (argc != sizeof(args->v0) || args->v0.version != 0)298 return -ENOSYS;299 300 if (outp->func->bl.set)301 ret = outp->func->bl.set(outp, args->v0.level);302 else303 ret = -EINVAL;304 305 return ret;306}307 308static int309nvkm_uoutp_mthd_bl_get(struct nvkm_outp *outp, void *argv, u32 argc)310{311 union nvif_outp_bl_get_args *args = argv;312 int ret;313 314 if (argc != sizeof(args->v0) || args->v0.version != 0)315 return -ENOSYS;316 317 if (outp->func->bl.get) {318 ret = outp->func->bl.get(outp);319 if (ret >= 0) {320 args->v0.level = ret;321 ret = 0;322 }323 } else {324 ret = -EINVAL;325 }326 327 return ret;328}329 330static int331nvkm_uoutp_mthd_release(struct nvkm_outp *outp, void *argv, u32 argc)332{333 union nvif_outp_release_args *args = argv;334 335 if (argc != sizeof(args->vn))336 return -ENOSYS;337 if (!outp->ior)338 return -EINVAL;339 340 outp->func->release(outp);341 return 0;342}343 344static int345nvkm_uoutp_mthd_acquire(struct nvkm_outp *outp, void *argv, u32 argc)346{347 union nvif_outp_acquire_args *args = argv;348 int ret;349 350 if (argc != sizeof(args->v0) || args->v0.version != 0)351 return -ENOSYS;352 if (outp->ior && args->v0.type <= NVIF_OUTP_ACQUIRE_V0_PIOR)353 return -EBUSY;354 355 switch (args->v0.type) {356 case NVIF_OUTP_ACQUIRE_V0_DAC:357 case NVIF_OUTP_ACQUIRE_V0_PIOR:358 ret = outp->func->acquire(outp, false);359 break;360 case NVIF_OUTP_ACQUIRE_V0_SOR:361 ret = outp->func->acquire(outp, args->v0.sor.hda);362 break;363 default:364 ret = -EINVAL;365 break;366 }367 368 if (ret)369 return ret;370 371 args->v0.or = outp->ior->id;372 args->v0.link = outp->ior->asy.link;373 return 0;374}375 376static int377nvkm_uoutp_mthd_inherit(struct nvkm_outp *outp, void *argv, u32 argc)378{379 union nvif_outp_inherit_args *args = argv;380 struct nvkm_ior *ior;381 int ret = 0;382 383 if (argc != sizeof(args->v0) || args->v0.version != 0)384 return -ENOSYS;385 386 /* Ensure an ior is hooked up to this outp already */387 ior = outp->func->inherit(outp);388 if (!ior || !ior->arm.head)389 return -ENODEV;390 391 /* With iors, there will be a separate output path for each type of connector - and all of392 * them will appear to be hooked up. Figure out which one is actually the one we're using393 * based on the protocol we were given over nvif394 */395 switch (args->v0.proto) {396 case NVIF_OUTP_INHERIT_V0_TMDS:397 if (ior->arm.proto != TMDS)398 return -ENODEV;399 break;400 case NVIF_OUTP_INHERIT_V0_DP:401 if (ior->arm.proto != DP)402 return -ENODEV;403 break;404 case NVIF_OUTP_INHERIT_V0_LVDS:405 if (ior->arm.proto != LVDS)406 return -ENODEV;407 break;408 case NVIF_OUTP_INHERIT_V0_TV:409 if (ior->arm.proto != TV)410 return -ENODEV;411 break;412 case NVIF_OUTP_INHERIT_V0_RGB_CRT:413 if (ior->arm.proto != CRT)414 return -ENODEV;415 break;416 default:417 ret = -EINVAL;418 break;419 }420 421 /* Make sure that userspace hasn't already acquired this */422 if (outp->acquired) {423 OUTP_ERR(outp, "cannot inherit an already acquired (%02x) outp", outp->acquired);424 return -EBUSY;425 }426 427 /* Mark the outp acquired by userspace now that we've confirmed it's already active */428 OUTP_TRACE(outp, "inherit %02x |= %02x %p", outp->acquired, NVKM_OUTP_USER, ior);429 nvkm_outp_acquire_ior(outp, NVKM_OUTP_USER, ior);430 431 args->v0.or = ior->id;432 args->v0.link = ior->arm.link;433 args->v0.head = ffs(ior->arm.head) - 1;434 args->v0.proto = ior->arm.proto_evo;435 436 return ret;437}438 439static int440nvkm_uoutp_mthd_load_detect(struct nvkm_outp *outp, void *argv, u32 argc)441{442 union nvif_outp_load_detect_args *args = argv;443 int ret;444 445 if (argc != sizeof(args->v0) || args->v0.version != 0)446 return -ENOSYS;447 448 ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_PRIV, false);449 if (ret == 0) {450 if (outp->ior->func->sense) {451 ret = outp->ior->func->sense(outp->ior, args->v0.data);452 args->v0.load = ret < 0 ? 0 : ret;453 } else {454 ret = -EINVAL;455 }456 nvkm_outp_release_or(outp, NVKM_OUTP_PRIV);457 }458 459 return ret;460}461 462static int463nvkm_uoutp_mthd_edid_get(struct nvkm_outp *outp, void *argv, u32 argc)464{465 union nvif_outp_edid_get_args *args = argv;466 467 if (argc != sizeof(args->v0) || args->v0.version != 0)468 return -ENOSYS;469 if (!outp->func->edid_get)470 return -EINVAL;471 472 args->v0.size = ARRAY_SIZE(args->v0.data);473 return outp->func->edid_get(outp, args->v0.data, &args->v0.size);474}475 476static int477nvkm_uoutp_mthd_detect(struct nvkm_outp *outp, void *argv, u32 argc)478{479 union nvif_outp_detect_args *args = argv;480 int ret;481 482 if (argc != sizeof(args->v0) || args->v0.version != 0)483 return -ENOSYS;484 if (!outp->func->detect)485 return -EINVAL;486 487 ret = outp->func->detect(outp);488 switch (ret) {489 case 0: args->v0.status = NVIF_OUTP_DETECT_V0_NOT_PRESENT; break;490 case 1: args->v0.status = NVIF_OUTP_DETECT_V0_PRESENT; break;491 default:492 args->v0.status = NVIF_OUTP_DETECT_V0_UNKNOWN;493 break;494 }495 496 return 0;497}498 499static int500nvkm_uoutp_mthd_acquired(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc)501{502 switch (mthd) {503 case NVIF_OUTP_V0_RELEASE : return nvkm_uoutp_mthd_release (outp, argv, argc);504 case NVIF_OUTP_V0_LVDS : return nvkm_uoutp_mthd_lvds (outp, argv, argc);505 case NVIF_OUTP_V0_HDMI : return nvkm_uoutp_mthd_hdmi (outp, argv, argc);506 case NVIF_OUTP_V0_INFOFRAME : return nvkm_uoutp_mthd_infoframe (outp, argv, argc);507 case NVIF_OUTP_V0_HDA_ELD : return nvkm_uoutp_mthd_hda_eld (outp, argv, argc);508 case NVIF_OUTP_V0_DP_TRAIN : return nvkm_uoutp_mthd_dp_train (outp, argv, argc);509 case NVIF_OUTP_V0_DP_DRIVE : return nvkm_uoutp_mthd_dp_drive (outp, argv, argc);510 case NVIF_OUTP_V0_DP_SST : return nvkm_uoutp_mthd_dp_sst (outp, argv, argc);511 case NVIF_OUTP_V0_DP_MST_ID_GET: return nvkm_uoutp_mthd_dp_mst_id_get(outp, argv, argc);512 case NVIF_OUTP_V0_DP_MST_ID_PUT: return nvkm_uoutp_mthd_dp_mst_id_put(outp, argv, argc);513 case NVIF_OUTP_V0_DP_MST_VCPI : return nvkm_uoutp_mthd_dp_mst_vcpi (outp, argv, argc);514 default:515 break;516 }517 518 return -EINVAL;519}520 521static int522nvkm_uoutp_mthd_noacquire(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc, bool *invalid)523{524 switch (mthd) {525 case NVIF_OUTP_V0_DETECT : return nvkm_uoutp_mthd_detect (outp, argv, argc);526 case NVIF_OUTP_V0_EDID_GET : return nvkm_uoutp_mthd_edid_get (outp, argv, argc);527 case NVIF_OUTP_V0_INHERIT : return nvkm_uoutp_mthd_inherit (outp, argv, argc);528 case NVIF_OUTP_V0_ACQUIRE : return nvkm_uoutp_mthd_acquire (outp, argv, argc);529 case NVIF_OUTP_V0_LOAD_DETECT: return nvkm_uoutp_mthd_load_detect(outp, argv, argc);530 case NVIF_OUTP_V0_BL_GET : return nvkm_uoutp_mthd_bl_get (outp, argv, argc);531 case NVIF_OUTP_V0_BL_SET : return nvkm_uoutp_mthd_bl_set (outp, argv, argc);532 case NVIF_OUTP_V0_DP_AUX_PWR : return nvkm_uoutp_mthd_dp_aux_pwr (outp, argv, argc);533 case NVIF_OUTP_V0_DP_AUX_XFER: return nvkm_uoutp_mthd_dp_aux_xfer(outp, argv, argc);534 case NVIF_OUTP_V0_DP_RATES : return nvkm_uoutp_mthd_dp_rates (outp, argv, argc);535 default:536 break;537 }538 539 *invalid = true;540 return 0;541}542 543static int544nvkm_uoutp_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)545{546 struct nvkm_outp *outp = nvkm_uoutp(object);547 struct nvkm_disp *disp = outp->disp;548 bool invalid = false;549 int ret;550 551 mutex_lock(&disp->super.mutex);552 553 ret = nvkm_uoutp_mthd_noacquire(outp, mthd, argv, argc, &invalid);554 if (!invalid)555 goto done;556 557 if (outp->ior)558 ret = nvkm_uoutp_mthd_acquired(outp, mthd, argv, argc);559 else560 ret = -EIO;561 562done:563 mutex_unlock(&disp->super.mutex);564 return ret;565}566 567static void *568nvkm_uoutp_dtor(struct nvkm_object *object)569{570 struct nvkm_outp *outp = nvkm_uoutp(object);571 struct nvkm_disp *disp = outp->disp;572 573 spin_lock(&disp->client.lock);574 outp->object.func = NULL;575 spin_unlock(&disp->client.lock);576 return NULL;577}578 579static const struct nvkm_object_func580nvkm_uoutp = {581 .dtor = nvkm_uoutp_dtor,582 .mthd = nvkm_uoutp_mthd,583};584 585int586nvkm_uoutp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)587{588 struct nvkm_disp *disp = nvkm_udisp(oclass->parent);589 struct nvkm_outp *outt, *outp = NULL;590 union nvif_outp_args *args = argv;591 int ret;592 593 if (argc != sizeof(args->v0) || args->v0.version != 0)594 return -ENOSYS;595 596 list_for_each_entry(outt, &disp->outps, head) {597 if (outt->index == args->v0.id) {598 outp = outt;599 break;600 }601 }602 603 if (!outp)604 return -EINVAL;605 606 ret = -EBUSY;607 spin_lock(&disp->client.lock);608 if (!outp->object.func) {609 switch (outp->info.type) {610 case DCB_OUTPUT_ANALOG:611 args->v0.type = NVIF_OUTP_V0_TYPE_DAC;612 args->v0.proto = NVIF_OUTP_V0_PROTO_RGB_CRT;613 args->v0.rgb_crt.freq_max = outp->info.crtconf.maxfreq;614 break;615 case DCB_OUTPUT_TMDS:616 if (!outp->info.location) {617 args->v0.type = NVIF_OUTP_V0_TYPE_SOR;618 args->v0.tmds.dual = (outp->info.tmdsconf.sor.link == 3);619 } else {620 args->v0.type = NVIF_OUTP_V0_TYPE_PIOR;621 args->v0.tmds.dual = 0;622 }623 args->v0.proto = NVIF_OUTP_V0_PROTO_TMDS;624 break;625 case DCB_OUTPUT_LVDS:626 args->v0.type = NVIF_OUTP_V0_TYPE_SOR;627 args->v0.proto = NVIF_OUTP_V0_PROTO_LVDS;628 args->v0.lvds.acpi_edid = outp->info.lvdsconf.use_acpi_for_edid;629 break;630 case DCB_OUTPUT_DP:631 if (!outp->info.location) {632 args->v0.type = NVIF_OUTP_V0_TYPE_SOR;633 args->v0.dp.aux = outp->info.i2c_index;634 } else {635 args->v0.type = NVIF_OUTP_V0_TYPE_PIOR;636 args->v0.dp.aux = NVKM_I2C_AUX_EXT(outp->info.extdev);637 }638 args->v0.proto = NVIF_OUTP_V0_PROTO_DP;639 args->v0.dp.mst = outp->dp.mst;640 args->v0.dp.increased_wm = outp->dp.increased_wm;641 args->v0.dp.link_nr = outp->info.dpconf.link_nr;642 args->v0.dp.link_bw = outp->info.dpconf.link_bw * 27000;643 break;644 default:645 WARN_ON(1);646 ret = -EINVAL;647 goto done;648 }649 650 if (outp->info.location)651 args->v0.ddc = NVKM_I2C_BUS_EXT(outp->info.extdev);652 else653 args->v0.ddc = outp->info.i2c_index;654 args->v0.heads = outp->info.heads;655 args->v0.conn = outp->info.connector;656 657 nvkm_object_ctor(&nvkm_uoutp, oclass, &outp->object);658 *pobject = &outp->object;659 ret = 0;660 }661 662done:663 spin_unlock(&disp->client.lock);664 return ret;665}666