Merge remote-tracking branch 'asoc/fix/core' into asoc-linus
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / nouveau / nouveau_connector.c
1 /*
2  * Copyright (C) 2008 Maarten Maathuis.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26
27 #include <acpi/button.h>
28
29 #include <linux/pm_runtime.h>
30
31 #include <drm/drmP.h>
32 #include <drm/drm_edid.h>
33 #include <drm/drm_crtc_helper.h>
34
35 #include "nouveau_reg.h"
36 #include "nouveau_drm.h"
37 #include "dispnv04/hw.h"
38 #include "nouveau_acpi.h"
39
40 #include "nouveau_display.h"
41 #include "nouveau_connector.h"
42 #include "nouveau_encoder.h"
43 #include "nouveau_crtc.h"
44
45 #include <subdev/i2c.h>
46 #include <subdev/gpio.h>
47 #include <engine/disp.h>
48
49 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
50 static int nouveau_tv_disable = 0;
51 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
52
53 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
54 static int nouveau_ignorelid = 0;
55 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
56
57 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
58 static int nouveau_duallink = 1;
59 module_param_named(duallink, nouveau_duallink, int, 0400);
60
61 struct nouveau_encoder *
62 find_encoder(struct drm_connector *connector, int type)
63 {
64         struct drm_device *dev = connector->dev;
65         struct nouveau_encoder *nv_encoder;
66         struct drm_mode_object *obj;
67         int i, id;
68
69         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
70                 id = connector->encoder_ids[i];
71                 if (!id)
72                         break;
73
74                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
75                 if (!obj)
76                         continue;
77                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
78
79                 if (type == DCB_OUTPUT_ANY ||
80                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
81                         return nv_encoder;
82         }
83
84         return NULL;
85 }
86
87 struct nouveau_connector *
88 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
89 {
90         struct drm_device *dev = to_drm_encoder(encoder)->dev;
91         struct drm_connector *drm_connector;
92
93         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
94                 if (drm_connector->encoder == to_drm_encoder(encoder))
95                         return nouveau_connector(drm_connector);
96         }
97
98         return NULL;
99 }
100
101 static void
102 nouveau_connector_destroy(struct drm_connector *connector)
103 {
104         struct nouveau_connector *nv_connector = nouveau_connector(connector);
105         nouveau_event_ref(NULL, &nv_connector->hpd);
106         kfree(nv_connector->edid);
107         drm_sysfs_connector_remove(connector);
108         drm_connector_cleanup(connector);
109         if (nv_connector->aux.transfer)
110                 drm_dp_aux_unregister(&nv_connector->aux);
111         kfree(connector);
112 }
113
114 static struct nouveau_encoder *
115 nouveau_connector_ddc_detect(struct drm_connector *connector)
116 {
117         struct drm_device *dev = connector->dev;
118         struct nouveau_connector *nv_connector = nouveau_connector(connector);
119         struct nouveau_drm *drm = nouveau_drm(dev);
120         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
121         struct nouveau_encoder *nv_encoder;
122         struct drm_mode_object *obj;
123         int i, panel = -ENODEV;
124
125         /* eDP panels need powering on by us (if the VBIOS doesn't default it
126          * to on) before doing any AUX channel transactions.  LVDS panel power
127          * is handled by the SOR itself, and not required for LVDS DDC.
128          */
129         if (nv_connector->type == DCB_CONNECTOR_eDP) {
130                 panel = gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
131                 if (panel == 0) {
132                         gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
133                         msleep(300);
134                 }
135         }
136
137         for (i = 0; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) {
138                 int id = connector->encoder_ids[i];
139                 if (id == 0)
140                         break;
141
142                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
143                 if (!obj)
144                         continue;
145                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
146
147                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
148                         int ret = nouveau_dp_detect(nv_encoder);
149                         if (ret == 0)
150                                 break;
151                 } else
152                 if (nv_encoder->i2c) {
153                         if (nv_probe_i2c(nv_encoder->i2c, 0x50))
154                                 break;
155                 }
156         }
157
158         /* eDP panel not detected, restore panel power GPIO to previous
159          * state to avoid confusing the SOR for other output types.
160          */
161         if (!nv_encoder && panel == 0)
162                 gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);
163
164         return nv_encoder;
165 }
166
167 static struct nouveau_encoder *
168 nouveau_connector_of_detect(struct drm_connector *connector)
169 {
170 #ifdef __powerpc__
171         struct drm_device *dev = connector->dev;
172         struct nouveau_connector *nv_connector = nouveau_connector(connector);
173         struct nouveau_encoder *nv_encoder;
174         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
175
176         if (!dn ||
177             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
178               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
179                 return NULL;
180
181         for_each_child_of_node(dn, cn) {
182                 const char *name = of_get_property(cn, "name", NULL);
183                 const void *edid = of_get_property(cn, "EDID", NULL);
184                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
185
186                 if (nv_encoder->dcb->i2c_index == idx && edid) {
187                         nv_connector->edid =
188                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
189                         of_node_put(cn);
190                         return nv_encoder;
191                 }
192         }
193 #endif
194         return NULL;
195 }
196
197 static void
198 nouveau_connector_set_encoder(struct drm_connector *connector,
199                               struct nouveau_encoder *nv_encoder)
200 {
201         struct nouveau_connector *nv_connector = nouveau_connector(connector);
202         struct nouveau_drm *drm = nouveau_drm(connector->dev);
203         struct drm_device *dev = connector->dev;
204
205         if (nv_connector->detected_encoder == nv_encoder)
206                 return;
207         nv_connector->detected_encoder = nv_encoder;
208
209         if (nv_device(drm->device)->card_type >= NV_50) {
210                 connector->interlace_allowed = true;
211                 connector->doublescan_allowed = true;
212         } else
213         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
214             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
215                 connector->doublescan_allowed = false;
216                 connector->interlace_allowed = false;
217         } else {
218                 connector->doublescan_allowed = true;
219                 if (nv_device(drm->device)->card_type == NV_20 ||
220                     ((nv_device(drm->device)->card_type == NV_10 ||
221                       nv_device(drm->device)->card_type == NV_11) &&
222                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
223                      (dev->pdev->device & 0x0ff0) != 0x0150))
224                         /* HW is broken */
225                         connector->interlace_allowed = false;
226                 else
227                         connector->interlace_allowed = true;
228         }
229
230         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
231                 drm_object_property_set_value(&connector->base,
232                         dev->mode_config.dvi_i_subconnector_property,
233                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
234                         DRM_MODE_SUBCONNECTOR_DVID :
235                         DRM_MODE_SUBCONNECTOR_DVIA);
236         }
237 }
238
239 static enum drm_connector_status
240 nouveau_connector_detect(struct drm_connector *connector, bool force)
241 {
242         struct drm_device *dev = connector->dev;
243         struct nouveau_drm *drm = nouveau_drm(dev);
244         struct nouveau_connector *nv_connector = nouveau_connector(connector);
245         struct nouveau_encoder *nv_encoder = NULL;
246         struct nouveau_encoder *nv_partner;
247         struct nouveau_i2c_port *i2c;
248         int type;
249         int ret;
250         enum drm_connector_status conn_status = connector_status_disconnected;
251
252         /* Cleanup the previous EDID block. */
253         if (nv_connector->edid) {
254                 drm_mode_connector_update_edid_property(connector, NULL);
255                 kfree(nv_connector->edid);
256                 nv_connector->edid = NULL;
257         }
258
259         ret = pm_runtime_get_sync(connector->dev->dev);
260         if (ret < 0 && ret != -EACCES)
261                 return conn_status;
262
263         nv_encoder = nouveau_connector_ddc_detect(connector);
264         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
265                 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
266                 drm_mode_connector_update_edid_property(connector,
267                                                         nv_connector->edid);
268                 if (!nv_connector->edid) {
269                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
270                                  connector->name);
271                         goto detect_analog;
272                 }
273
274                 /* Override encoder type for DVI-I based on whether EDID
275                  * says the display is digital or analog, both use the
276                  * same i2c channel so the value returned from ddc_detect
277                  * isn't necessarily correct.
278                  */
279                 nv_partner = NULL;
280                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
281                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
282                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
283                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
284
285                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
286                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
287                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
288                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
289                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
290                                 type = DCB_OUTPUT_TMDS;
291                         else
292                                 type = DCB_OUTPUT_ANALOG;
293
294                         nv_encoder = find_encoder(connector, type);
295                 }
296
297                 nouveau_connector_set_encoder(connector, nv_encoder);
298                 conn_status = connector_status_connected;
299                 goto out;
300         }
301
302         nv_encoder = nouveau_connector_of_detect(connector);
303         if (nv_encoder) {
304                 nouveau_connector_set_encoder(connector, nv_encoder);
305                 conn_status = connector_status_connected;
306                 goto out;
307         }
308
309 detect_analog:
310         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
311         if (!nv_encoder && !nouveau_tv_disable)
312                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
313         if (nv_encoder && force) {
314                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
315                 struct drm_encoder_helper_funcs *helper =
316                                                 encoder->helper_private;
317
318                 if (helper->detect(encoder, connector) ==
319                                                 connector_status_connected) {
320                         nouveau_connector_set_encoder(connector, nv_encoder);
321                         conn_status = connector_status_connected;
322                         goto out;
323                 }
324
325         }
326
327  out:
328
329         pm_runtime_mark_last_busy(connector->dev->dev);
330         pm_runtime_put_autosuspend(connector->dev->dev);
331
332         return conn_status;
333 }
334
335 static enum drm_connector_status
336 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
337 {
338         struct drm_device *dev = connector->dev;
339         struct nouveau_drm *drm = nouveau_drm(dev);
340         struct nouveau_connector *nv_connector = nouveau_connector(connector);
341         struct nouveau_encoder *nv_encoder = NULL;
342         enum drm_connector_status status = connector_status_disconnected;
343
344         /* Cleanup the previous EDID block. */
345         if (nv_connector->edid) {
346                 drm_mode_connector_update_edid_property(connector, NULL);
347                 kfree(nv_connector->edid);
348                 nv_connector->edid = NULL;
349         }
350
351         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
352         if (!nv_encoder)
353                 return connector_status_disconnected;
354
355         /* Try retrieving EDID via DDC */
356         if (!drm->vbios.fp_no_ddc) {
357                 status = nouveau_connector_detect(connector, force);
358                 if (status == connector_status_connected)
359                         goto out;
360         }
361
362         /* On some laptops (Sony, i'm looking at you) there appears to
363          * be no direct way of accessing the panel's EDID.  The only
364          * option available to us appears to be to ask ACPI for help..
365          *
366          * It's important this check's before trying straps, one of the
367          * said manufacturer's laptops are configured in such a way
368          * the nouveau decides an entry in the VBIOS FP mode table is
369          * valid - it's not (rh#613284)
370          */
371         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
372                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
373                         status = connector_status_connected;
374                         goto out;
375                 }
376         }
377
378         /* If no EDID found above, and the VBIOS indicates a hardcoded
379          * modeline is avalilable for the panel, set it as the panel's
380          * native mode and exit.
381          */
382         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
383             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
384                 status = connector_status_connected;
385                 goto out;
386         }
387
388         /* Still nothing, some VBIOS images have a hardcoded EDID block
389          * stored for the panel stored in them.
390          */
391         if (!drm->vbios.fp_no_ddc) {
392                 struct edid *edid =
393                         (struct edid *)nouveau_bios_embedded_edid(dev);
394                 if (edid) {
395                         nv_connector->edid =
396                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
397                         if (nv_connector->edid)
398                                 status = connector_status_connected;
399                 }
400         }
401
402 out:
403 #if defined(CONFIG_ACPI_BUTTON) || \
404         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
405         if (status == connector_status_connected &&
406             !nouveau_ignorelid && !acpi_lid_open())
407                 status = connector_status_unknown;
408 #endif
409
410         drm_mode_connector_update_edid_property(connector, nv_connector->edid);
411         nouveau_connector_set_encoder(connector, nv_encoder);
412         return status;
413 }
414
415 static void
416 nouveau_connector_force(struct drm_connector *connector)
417 {
418         struct nouveau_drm *drm = nouveau_drm(connector->dev);
419         struct nouveau_connector *nv_connector = nouveau_connector(connector);
420         struct nouveau_encoder *nv_encoder;
421         int type;
422
423         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
424                 if (connector->force == DRM_FORCE_ON_DIGITAL)
425                         type = DCB_OUTPUT_TMDS;
426                 else
427                         type = DCB_OUTPUT_ANALOG;
428         } else
429                 type = DCB_OUTPUT_ANY;
430
431         nv_encoder = find_encoder(connector, type);
432         if (!nv_encoder) {
433                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
434                          connector->name);
435                 connector->status = connector_status_disconnected;
436                 return;
437         }
438
439         nouveau_connector_set_encoder(connector, nv_encoder);
440 }
441
442 static int
443 nouveau_connector_set_property(struct drm_connector *connector,
444                                struct drm_property *property, uint64_t value)
445 {
446         struct nouveau_display *disp = nouveau_display(connector->dev);
447         struct nouveau_connector *nv_connector = nouveau_connector(connector);
448         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
449         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
450         struct drm_device *dev = connector->dev;
451         struct nouveau_crtc *nv_crtc;
452         int ret;
453
454         nv_crtc = NULL;
455         if (connector->encoder && connector->encoder->crtc)
456                 nv_crtc = nouveau_crtc(connector->encoder->crtc);
457
458         /* Scaling mode */
459         if (property == dev->mode_config.scaling_mode_property) {
460                 bool modeset = false;
461
462                 switch (value) {
463                 case DRM_MODE_SCALE_NONE:
464                 case DRM_MODE_SCALE_FULLSCREEN:
465                 case DRM_MODE_SCALE_CENTER:
466                 case DRM_MODE_SCALE_ASPECT:
467                         break;
468                 default:
469                         return -EINVAL;
470                 }
471
472                 /* LVDS always needs gpu scaling */
473                 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
474                     value == DRM_MODE_SCALE_NONE)
475                         return -EINVAL;
476
477                 /* Changing between GPU and panel scaling requires a full
478                  * modeset
479                  */
480                 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
481                     (value == DRM_MODE_SCALE_NONE))
482                         modeset = true;
483                 nv_connector->scaling_mode = value;
484
485                 if (!nv_crtc)
486                         return 0;
487
488                 if (modeset || !nv_crtc->set_scale) {
489                         ret = drm_crtc_helper_set_mode(&nv_crtc->base,
490                                                         &nv_crtc->base.mode,
491                                                         nv_crtc->base.x,
492                                                         nv_crtc->base.y, NULL);
493                         if (!ret)
494                                 return -EINVAL;
495                 } else {
496                         ret = nv_crtc->set_scale(nv_crtc, true);
497                         if (ret)
498                                 return ret;
499                 }
500
501                 return 0;
502         }
503
504         /* Underscan */
505         if (property == disp->underscan_property) {
506                 if (nv_connector->underscan != value) {
507                         nv_connector->underscan = value;
508                         if (!nv_crtc || !nv_crtc->set_scale)
509                                 return 0;
510
511                         return nv_crtc->set_scale(nv_crtc, true);
512                 }
513
514                 return 0;
515         }
516
517         if (property == disp->underscan_hborder_property) {
518                 if (nv_connector->underscan_hborder != value) {
519                         nv_connector->underscan_hborder = value;
520                         if (!nv_crtc || !nv_crtc->set_scale)
521                                 return 0;
522
523                         return nv_crtc->set_scale(nv_crtc, true);
524                 }
525
526                 return 0;
527         }
528
529         if (property == disp->underscan_vborder_property) {
530                 if (nv_connector->underscan_vborder != value) {
531                         nv_connector->underscan_vborder = value;
532                         if (!nv_crtc || !nv_crtc->set_scale)
533                                 return 0;
534
535                         return nv_crtc->set_scale(nv_crtc, true);
536                 }
537
538                 return 0;
539         }
540
541         /* Dithering */
542         if (property == disp->dithering_mode) {
543                 nv_connector->dithering_mode = value;
544                 if (!nv_crtc || !nv_crtc->set_dither)
545                         return 0;
546
547                 return nv_crtc->set_dither(nv_crtc, true);
548         }
549
550         if (property == disp->dithering_depth) {
551                 nv_connector->dithering_depth = value;
552                 if (!nv_crtc || !nv_crtc->set_dither)
553                         return 0;
554
555                 return nv_crtc->set_dither(nv_crtc, true);
556         }
557
558         if (nv_crtc && nv_crtc->set_color_vibrance) {
559                 /* Hue */
560                 if (property == disp->vibrant_hue_property) {
561                         nv_crtc->vibrant_hue = value - 90;
562                         return nv_crtc->set_color_vibrance(nv_crtc, true);
563                 }
564                 /* Saturation */
565                 if (property == disp->color_vibrance_property) {
566                         nv_crtc->color_vibrance = value - 100;
567                         return nv_crtc->set_color_vibrance(nv_crtc, true);
568                 }
569         }
570
571         if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
572                 return get_slave_funcs(encoder)->set_property(
573                         encoder, connector, property, value);
574
575         return -EINVAL;
576 }
577
578 static struct drm_display_mode *
579 nouveau_connector_native_mode(struct drm_connector *connector)
580 {
581         struct drm_connector_helper_funcs *helper = connector->helper_private;
582         struct nouveau_drm *drm = nouveau_drm(connector->dev);
583         struct nouveau_connector *nv_connector = nouveau_connector(connector);
584         struct drm_device *dev = connector->dev;
585         struct drm_display_mode *mode, *largest = NULL;
586         int high_w = 0, high_h = 0, high_v = 0;
587
588         list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
589                 mode->vrefresh = drm_mode_vrefresh(mode);
590                 if (helper->mode_valid(connector, mode) != MODE_OK ||
591                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
592                         continue;
593
594                 /* Use preferred mode if there is one.. */
595                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
596                         NV_DEBUG(drm, "native mode from preferred\n");
597                         return drm_mode_duplicate(dev, mode);
598                 }
599
600                 /* Otherwise, take the resolution with the largest width, then
601                  * height, then vertical refresh
602                  */
603                 if (mode->hdisplay < high_w)
604                         continue;
605
606                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
607                         continue;
608
609                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
610                     mode->vrefresh < high_v)
611                         continue;
612
613                 high_w = mode->hdisplay;
614                 high_h = mode->vdisplay;
615                 high_v = mode->vrefresh;
616                 largest = mode;
617         }
618
619         NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
620                       high_w, high_h, high_v);
621         return largest ? drm_mode_duplicate(dev, largest) : NULL;
622 }
623
624 struct moderec {
625         int hdisplay;
626         int vdisplay;
627 };
628
629 static struct moderec scaler_modes[] = {
630         { 1920, 1200 },
631         { 1920, 1080 },
632         { 1680, 1050 },
633         { 1600, 1200 },
634         { 1400, 1050 },
635         { 1280, 1024 },
636         { 1280, 960 },
637         { 1152, 864 },
638         { 1024, 768 },
639         { 800, 600 },
640         { 720, 400 },
641         { 640, 480 },
642         { 640, 400 },
643         { 640, 350 },
644         {}
645 };
646
647 static int
648 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
649 {
650         struct nouveau_connector *nv_connector = nouveau_connector(connector);
651         struct drm_display_mode *native = nv_connector->native_mode, *m;
652         struct drm_device *dev = connector->dev;
653         struct moderec *mode = &scaler_modes[0];
654         int modes = 0;
655
656         if (!native)
657                 return 0;
658
659         while (mode->hdisplay) {
660                 if (mode->hdisplay <= native->hdisplay &&
661                     mode->vdisplay <= native->vdisplay) {
662                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
663                                          drm_mode_vrefresh(native), false,
664                                          false, false);
665                         if (!m)
666                                 continue;
667
668                         m->type |= DRM_MODE_TYPE_DRIVER;
669
670                         drm_mode_probed_add(connector, m);
671                         modes++;
672                 }
673
674                 mode++;
675         }
676
677         return modes;
678 }
679
680 static void
681 nouveau_connector_detect_depth(struct drm_connector *connector)
682 {
683         struct nouveau_drm *drm = nouveau_drm(connector->dev);
684         struct nouveau_connector *nv_connector = nouveau_connector(connector);
685         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
686         struct nvbios *bios = &drm->vbios;
687         struct drm_display_mode *mode = nv_connector->native_mode;
688         bool duallink;
689
690         /* if the edid is feeling nice enough to provide this info, use it */
691         if (nv_connector->edid && connector->display_info.bpc)
692                 return;
693
694         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
695         if (nv_connector->type == DCB_CONNECTOR_eDP) {
696                 connector->display_info.bpc = 6;
697                 return;
698         }
699
700         /* we're out of options unless we're LVDS, default to 8bpc */
701         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
702                 connector->display_info.bpc = 8;
703                 return;
704         }
705
706         connector->display_info.bpc = 6;
707
708         /* LVDS: panel straps */
709         if (bios->fp_no_ddc) {
710                 if (bios->fp.if_is_24bit)
711                         connector->display_info.bpc = 8;
712                 return;
713         }
714
715         /* LVDS: DDC panel, need to first determine the number of links to
716          * know which if_is_24bit flag to check...
717          */
718         if (nv_connector->edid &&
719             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
720                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
721         else
722                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
723
724         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
725             ( duallink && (bios->fp.strapless_is_24bit & 2)))
726                 connector->display_info.bpc = 8;
727 }
728
729 static int
730 nouveau_connector_get_modes(struct drm_connector *connector)
731 {
732         struct drm_device *dev = connector->dev;
733         struct nouveau_drm *drm = nouveau_drm(dev);
734         struct nouveau_connector *nv_connector = nouveau_connector(connector);
735         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
736         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
737         int ret = 0;
738
739         /* destroy the native mode, the attached monitor could have changed.
740          */
741         if (nv_connector->native_mode) {
742                 drm_mode_destroy(dev, nv_connector->native_mode);
743                 nv_connector->native_mode = NULL;
744         }
745
746         if (nv_connector->edid)
747                 ret = drm_add_edid_modes(connector, nv_connector->edid);
748         else
749         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
750             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
751              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
752                 struct drm_display_mode mode;
753
754                 nouveau_bios_fp_mode(dev, &mode);
755                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
756         }
757
758         /* Determine display colour depth for everything except LVDS now,
759          * DP requires this before mode_valid() is called.
760          */
761         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
762                 nouveau_connector_detect_depth(connector);
763
764         /* Find the native mode if this is a digital panel, if we didn't
765          * find any modes through DDC previously add the native mode to
766          * the list of modes.
767          */
768         if (!nv_connector->native_mode)
769                 nv_connector->native_mode =
770                         nouveau_connector_native_mode(connector);
771         if (ret == 0 && nv_connector->native_mode) {
772                 struct drm_display_mode *mode;
773
774                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
775                 drm_mode_probed_add(connector, mode);
776                 ret = 1;
777         }
778
779         /* Determine LVDS colour depth, must happen after determining
780          * "native" mode as some VBIOS tables require us to use the
781          * pixel clock as part of the lookup...
782          */
783         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
784                 nouveau_connector_detect_depth(connector);
785
786         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
787                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
788
789         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
790             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
791             nv_connector->type == DCB_CONNECTOR_eDP)
792                 ret += nouveau_connector_scaler_modes_add(connector);
793
794         return ret;
795 }
796
797 static unsigned
798 get_tmds_link_bandwidth(struct drm_connector *connector)
799 {
800         struct nouveau_connector *nv_connector = nouveau_connector(connector);
801         struct nouveau_drm *drm = nouveau_drm(connector->dev);
802         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
803
804         if (dcb->location != DCB_LOC_ON_CHIP ||
805             nv_device(drm->device)->chipset >= 0x46)
806                 return 165000;
807         else if (nv_device(drm->device)->chipset >= 0x40)
808                 return 155000;
809         else if (nv_device(drm->device)->chipset >= 0x18)
810                 return 135000;
811         else
812                 return 112000;
813 }
814
815 static int
816 nouveau_connector_mode_valid(struct drm_connector *connector,
817                              struct drm_display_mode *mode)
818 {
819         struct nouveau_connector *nv_connector = nouveau_connector(connector);
820         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
821         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
822         unsigned min_clock = 25000, max_clock = min_clock;
823         unsigned clock = mode->clock;
824
825         switch (nv_encoder->dcb->type) {
826         case DCB_OUTPUT_LVDS:
827                 if (nv_connector->native_mode &&
828                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
829                      mode->vdisplay > nv_connector->native_mode->vdisplay))
830                         return MODE_PANEL;
831
832                 min_clock = 0;
833                 max_clock = 400000;
834                 break;
835         case DCB_OUTPUT_TMDS:
836                 max_clock = get_tmds_link_bandwidth(connector);
837                 if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
838                         max_clock *= 2;
839                 break;
840         case DCB_OUTPUT_ANALOG:
841                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
842                 if (!max_clock)
843                         max_clock = 350000;
844                 break;
845         case DCB_OUTPUT_TV:
846                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
847         case DCB_OUTPUT_DP:
848                 max_clock  = nv_encoder->dp.link_nr;
849                 max_clock *= nv_encoder->dp.link_bw;
850                 clock = clock * (connector->display_info.bpc * 3) / 10;
851                 break;
852         default:
853                 BUG_ON(1);
854                 return MODE_BAD;
855         }
856
857         if (clock < min_clock)
858                 return MODE_CLOCK_LOW;
859
860         if (clock > max_clock)
861                 return MODE_CLOCK_HIGH;
862
863         return MODE_OK;
864 }
865
866 static struct drm_encoder *
867 nouveau_connector_best_encoder(struct drm_connector *connector)
868 {
869         struct nouveau_connector *nv_connector = nouveau_connector(connector);
870
871         if (nv_connector->detected_encoder)
872                 return to_drm_encoder(nv_connector->detected_encoder);
873
874         return NULL;
875 }
876
877 static const struct drm_connector_helper_funcs
878 nouveau_connector_helper_funcs = {
879         .get_modes = nouveau_connector_get_modes,
880         .mode_valid = nouveau_connector_mode_valid,
881         .best_encoder = nouveau_connector_best_encoder,
882 };
883
884 static const struct drm_connector_funcs
885 nouveau_connector_funcs = {
886         .dpms = drm_helper_connector_dpms,
887         .save = NULL,
888         .restore = NULL,
889         .detect = nouveau_connector_detect,
890         .destroy = nouveau_connector_destroy,
891         .fill_modes = drm_helper_probe_single_connector_modes,
892         .set_property = nouveau_connector_set_property,
893         .force = nouveau_connector_force
894 };
895
896 static const struct drm_connector_funcs
897 nouveau_connector_funcs_lvds = {
898         .dpms = drm_helper_connector_dpms,
899         .save = NULL,
900         .restore = NULL,
901         .detect = nouveau_connector_detect_lvds,
902         .destroy = nouveau_connector_destroy,
903         .fill_modes = drm_helper_probe_single_connector_modes,
904         .set_property = nouveau_connector_set_property,
905         .force = nouveau_connector_force
906 };
907
908 static void
909 nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
910 {
911         struct nouveau_encoder *nv_encoder = NULL;
912
913         if (connector->encoder)
914                 nv_encoder = nouveau_encoder(connector->encoder);
915         if (nv_encoder && nv_encoder->dcb &&
916             nv_encoder->dcb->type == DCB_OUTPUT_DP) {
917                 if (mode == DRM_MODE_DPMS_ON) {
918                         u8 data = DP_SET_POWER_D0;
919                         nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
920                         usleep_range(1000, 2000);
921                 } else {
922                         u8 data = DP_SET_POWER_D3;
923                         nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
924                 }
925         }
926
927         drm_helper_connector_dpms(connector, mode);
928 }
929
930 static const struct drm_connector_funcs
931 nouveau_connector_funcs_dp = {
932         .dpms = nouveau_connector_dp_dpms,
933         .save = NULL,
934         .restore = NULL,
935         .detect = nouveau_connector_detect,
936         .destroy = nouveau_connector_destroy,
937         .fill_modes = drm_helper_probe_single_connector_modes,
938         .set_property = nouveau_connector_set_property,
939         .force = nouveau_connector_force
940 };
941
942 static void
943 nouveau_connector_hotplug_work(struct work_struct *work)
944 {
945         struct nouveau_connector *nv_connector =
946                 container_of(work, typeof(*nv_connector), work);
947         struct drm_connector *connector = &nv_connector->base;
948         struct nouveau_drm *drm = nouveau_drm(connector->dev);
949         const char *name = connector->name;
950
951         if (nv_connector->status & NVKM_HPD_IRQ) {
952         } else {
953                 bool plugged = (nv_connector->status != NVKM_HPD_UNPLUG);
954
955                 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
956
957                 if (plugged)
958                         drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
959                 else
960                         drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
961                 drm_helper_hpd_irq_event(connector->dev);
962         }
963
964         nouveau_event_get(nv_connector->hpd);
965 }
966
967 static int
968 nouveau_connector_hotplug(void *data, u32 type, int index)
969 {
970         struct nouveau_connector *nv_connector = data;
971         nv_connector->status = type;
972         schedule_work(&nv_connector->work);
973         return NVKM_EVENT_DROP;
974 }
975
976 static ssize_t
977 nouveau_connector_aux_xfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
978 {
979         struct nouveau_connector *nv_connector =
980                 container_of(aux, typeof(*nv_connector), aux);
981         struct nouveau_encoder *nv_encoder;
982         struct nouveau_i2c_port *port;
983         int ret;
984
985         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
986         if (!nv_encoder || !(port = nv_encoder->i2c))
987                 return -ENODEV;
988         if (WARN_ON(msg->size > 16))
989                 return -E2BIG;
990         if (msg->size == 0)
991                 return msg->size;
992
993         ret = nouveau_i2c(port)->acquire(port, 0);
994         if (ret)
995                 return ret;
996
997         ret = port->func->aux(port, false, msg->request, msg->address,
998                               msg->buffer, msg->size);
999         nouveau_i2c(port)->release(port);
1000         if (ret >= 0) {
1001                 msg->reply = ret;
1002                 return msg->size;
1003         }
1004
1005         return ret;
1006 }
1007
1008 static int
1009 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1010 {
1011         switch (dcb) {
1012         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1013         case DCB_CONNECTOR_TV_0     :
1014         case DCB_CONNECTOR_TV_1     :
1015         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1016         case DCB_CONNECTOR_DMS59_0  :
1017         case DCB_CONNECTOR_DMS59_1  :
1018         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1019         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1020         case DCB_CONNECTOR_LVDS     :
1021         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1022         case DCB_CONNECTOR_DMS59_DP0:
1023         case DCB_CONNECTOR_DMS59_DP1:
1024         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1025         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1026         case DCB_CONNECTOR_HDMI_0   :
1027         case DCB_CONNECTOR_HDMI_1   :
1028         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1029         default:
1030                 break;
1031         }
1032
1033         return DRM_MODE_CONNECTOR_Unknown;
1034 }
1035
1036 struct drm_connector *
1037 nouveau_connector_create(struct drm_device *dev, int index)
1038 {
1039         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1040         struct nouveau_drm *drm = nouveau_drm(dev);
1041         struct nouveau_display *disp = nouveau_display(dev);
1042         struct nouveau_connector *nv_connector = NULL;
1043         struct nouveau_disp *pdisp = nouveau_disp(drm->device);
1044         struct drm_connector *connector;
1045         int type, ret = 0;
1046         bool dummy;
1047
1048         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1049                 nv_connector = nouveau_connector(connector);
1050                 if (nv_connector->index == index)
1051                         return connector;
1052         }
1053
1054         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1055         if (!nv_connector)
1056                 return ERR_PTR(-ENOMEM);
1057
1058         connector = &nv_connector->base;
1059         nv_connector->index = index;
1060
1061         /* attempt to parse vbios connector type and hotplug gpio */
1062         nv_connector->dcb = olddcb_conn(dev, index);
1063         if (nv_connector->dcb) {
1064                 u32 entry = ROM16(nv_connector->dcb[0]);
1065                 if (olddcb_conntab(dev)[3] >= 4)
1066                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1067
1068                 nv_connector->type = nv_connector->dcb[0];
1069                 if (drm_conntype_from_dcb(nv_connector->type) ==
1070                                           DRM_MODE_CONNECTOR_Unknown) {
1071                         NV_WARN(drm, "unknown connector type %02x\n",
1072                                 nv_connector->type);
1073                         nv_connector->type = DCB_CONNECTOR_NONE;
1074                 }
1075
1076                 /* Gigabyte NX85T */
1077                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1078                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1079                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1080                 }
1081
1082                 /* Gigabyte GV-NX86T512H */
1083                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1084                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1085                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1086                 }
1087         } else {
1088                 nv_connector->type = DCB_CONNECTOR_NONE;
1089         }
1090
1091         /* no vbios data, or an unknown dcb connector type - attempt to
1092          * figure out something suitable ourselves
1093          */
1094         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1095                 struct nouveau_drm *drm = nouveau_drm(dev);
1096                 struct dcb_table *dcbt = &drm->vbios.dcb;
1097                 u32 encoders = 0;
1098                 int i;
1099
1100                 for (i = 0; i < dcbt->entries; i++) {
1101                         if (dcbt->entry[i].connector == nv_connector->index)
1102                                 encoders |= (1 << dcbt->entry[i].type);
1103                 }
1104
1105                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1106                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1107                                 nv_connector->type = DCB_CONNECTOR_DP;
1108                         else
1109                                 nv_connector->type = DCB_CONNECTOR_eDP;
1110                 } else
1111                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1112                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1113                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1114                         else
1115                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1116                 } else
1117                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1118                         nv_connector->type = DCB_CONNECTOR_VGA;
1119                 } else
1120                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1121                         nv_connector->type = DCB_CONNECTOR_LVDS;
1122                 } else
1123                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1124                         nv_connector->type = DCB_CONNECTOR_TV_0;
1125                 }
1126         }
1127
1128         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1129         case DRM_MODE_CONNECTOR_LVDS:
1130                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1131                 if (ret) {
1132                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1133                         kfree(nv_connector);
1134                         return ERR_PTR(ret);
1135                 }
1136
1137                 funcs = &nouveau_connector_funcs_lvds;
1138                 break;
1139         case DRM_MODE_CONNECTOR_DisplayPort:
1140         case DRM_MODE_CONNECTOR_eDP:
1141                 nv_connector->aux.dev = dev->dev;
1142                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1143                 ret = drm_dp_aux_register(&nv_connector->aux);
1144                 if (ret) {
1145                         NV_ERROR(drm, "failed to register aux channel\n");
1146                         kfree(nv_connector);
1147                         return ERR_PTR(ret);
1148                 }
1149
1150                 funcs = &nouveau_connector_funcs_dp;
1151                 break;
1152         default:
1153                 funcs = &nouveau_connector_funcs;
1154                 break;
1155         }
1156
1157         /* defaults, will get overridden in detect() */
1158         connector->interlace_allowed = false;
1159         connector->doublescan_allowed = false;
1160
1161         drm_connector_init(dev, connector, funcs, type);
1162         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1163
1164         /* Init DVI-I specific properties */
1165         if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1166                 drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1167
1168         /* Add overscan compensation options to digital outputs */
1169         if (disp->underscan_property &&
1170             (type == DRM_MODE_CONNECTOR_DVID ||
1171              type == DRM_MODE_CONNECTOR_DVII ||
1172              type == DRM_MODE_CONNECTOR_HDMIA ||
1173              type == DRM_MODE_CONNECTOR_DisplayPort)) {
1174                 drm_object_attach_property(&connector->base,
1175                                               disp->underscan_property,
1176                                               UNDERSCAN_OFF);
1177                 drm_object_attach_property(&connector->base,
1178                                               disp->underscan_hborder_property,
1179                                               0);
1180                 drm_object_attach_property(&connector->base,
1181                                               disp->underscan_vborder_property,
1182                                               0);
1183         }
1184
1185         /* Add hue and saturation options */
1186         if (disp->vibrant_hue_property)
1187                 drm_object_attach_property(&connector->base,
1188                                               disp->vibrant_hue_property,
1189                                               90);
1190         if (disp->color_vibrance_property)
1191                 drm_object_attach_property(&connector->base,
1192                                               disp->color_vibrance_property,
1193                                               150);
1194
1195         switch (nv_connector->type) {
1196         case DCB_CONNECTOR_VGA:
1197                 if (nv_device(drm->device)->card_type >= NV_50) {
1198                         drm_object_attach_property(&connector->base,
1199                                         dev->mode_config.scaling_mode_property,
1200                                         nv_connector->scaling_mode);
1201                 }
1202                 /* fall-through */
1203         case DCB_CONNECTOR_TV_0:
1204         case DCB_CONNECTOR_TV_1:
1205         case DCB_CONNECTOR_TV_3:
1206                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1207                 break;
1208         default:
1209                 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1210
1211                 drm_object_attach_property(&connector->base,
1212                                 dev->mode_config.scaling_mode_property,
1213                                 nv_connector->scaling_mode);
1214                 if (disp->dithering_mode) {
1215                         nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1216                         drm_object_attach_property(&connector->base,
1217                                                 disp->dithering_mode,
1218                                                 nv_connector->dithering_mode);
1219                 }
1220                 if (disp->dithering_depth) {
1221                         nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1222                         drm_object_attach_property(&connector->base,
1223                                                 disp->dithering_depth,
1224                                                 nv_connector->dithering_depth);
1225                 }
1226                 break;
1227         }
1228
1229         ret = nouveau_event_new(pdisp->hpd, NVKM_HPD, index,
1230                                 nouveau_connector_hotplug,
1231                                 nv_connector, &nv_connector->hpd);
1232         if (ret)
1233                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1234         else
1235                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1236
1237         INIT_WORK(&nv_connector->work, nouveau_connector_hotplug_work);
1238
1239         drm_sysfs_connector_add(connector);
1240         return connector;
1241 }