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 #include <linux/vga_switcheroo.h>
31 
32 #include <drm/drmP.h>
33 #include <drm/drm_edid.h>
34 #include <drm/drm_crtc_helper.h>
35 
36 #include "nouveau_reg.h"
37 #include "nouveau_drv.h"
38 #include "dispnv04/hw.h"
39 #include "nouveau_acpi.h"
40 
41 #include "nouveau_display.h"
42 #include "nouveau_connector.h"
43 #include "nouveau_encoder.h"
44 #include "nouveau_crtc.h"
45 
46 #include <nvif/class.h>
47 #include <nvif/cl0046.h>
48 #include <nvif/event.h>
49 
50 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
51 int nouveau_tv_disable = 0;
52 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
53 
54 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
55 int nouveau_ignorelid = 0;
56 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
57 
58 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
59 int nouveau_duallink = 1;
60 module_param_named(duallink, nouveau_duallink, int, 0400);
61 
62 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
63 int nouveau_hdmimhz = 0;
64 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
65 
66 struct nouveau_encoder *
67 find_encoder(struct drm_connector *connector, int type)
68 {
69 	struct drm_device *dev = connector->dev;
70 	struct nouveau_encoder *nv_encoder;
71 	struct drm_encoder *enc;
72 	int i, id;
73 
74 	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
75 		id = connector->encoder_ids[i];
76 		if (!id)
77 			break;
78 
79 		enc = drm_encoder_find(dev, id);
80 		if (!enc)
81 			continue;
82 		nv_encoder = nouveau_encoder(enc);
83 
84 		if (type == DCB_OUTPUT_ANY ||
85 		    (nv_encoder->dcb && nv_encoder->dcb->type == type))
86 			return nv_encoder;
87 	}
88 
89 	return NULL;
90 }
91 
92 struct nouveau_connector *
93 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
94 {
95 	struct drm_device *dev = to_drm_encoder(encoder)->dev;
96 	struct drm_connector *drm_connector;
97 
98 	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
99 		if (drm_connector->encoder == to_drm_encoder(encoder))
100 			return nouveau_connector(drm_connector);
101 	}
102 
103 	return NULL;
104 }
105 
106 static void
107 nouveau_connector_destroy(struct drm_connector *connector)
108 {
109 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
110 	nvif_notify_fini(&nv_connector->hpd);
111 	kfree(nv_connector->edid);
112 	drm_connector_unregister(connector);
113 	drm_connector_cleanup(connector);
114 	if (nv_connector->aux.transfer)
115 		drm_dp_aux_unregister(&nv_connector->aux);
116 	kfree(connector);
117 }
118 
119 static struct nouveau_encoder *
120 nouveau_connector_ddc_detect(struct drm_connector *connector)
121 {
122 	struct drm_device *dev = connector->dev;
123 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
124 	struct nouveau_drm *drm = nouveau_drm(dev);
125 	struct nvkm_gpio *gpio = nvxx_gpio(&drm->device);
126 	struct nouveau_encoder *nv_encoder;
127 	struct drm_encoder *encoder;
128 	int i, panel = -ENODEV;
129 
130 	/* eDP panels need powering on by us (if the VBIOS doesn't default it
131 	 * to on) before doing any AUX channel transactions.  LVDS panel power
132 	 * is handled by the SOR itself, and not required for LVDS DDC.
133 	 */
134 	if (nv_connector->type == DCB_CONNECTOR_eDP) {
135 		panel = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
136 		if (panel == 0) {
137 			nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
138 			msleep(300);
139 		}
140 	}
141 
142 	for (i = 0; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) {
143 		int id = connector->encoder_ids[i];
144 		if (id == 0)
145 			break;
146 
147 		encoder = drm_encoder_find(dev, id);
148 		if (!encoder)
149 			continue;
150 		nv_encoder = nouveau_encoder(encoder);
151 
152 		if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
153 			int ret = nouveau_dp_detect(nv_encoder);
154 			if (ret == 0)
155 				break;
156 		} else
157 		if ((vga_switcheroo_handler_flags() &
158 		     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
159 		    nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
160 		    nv_encoder->i2c) {
161 			int ret;
162 			vga_switcheroo_lock_ddc(dev->pdev);
163 			ret = nvkm_probe_i2c(nv_encoder->i2c, 0x50);
164 			vga_switcheroo_unlock_ddc(dev->pdev);
165 			if (ret)
166 				break;
167 		} else
168 		if (nv_encoder->i2c) {
169 			if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
170 				break;
171 		}
172 	}
173 
174 	/* eDP panel not detected, restore panel power GPIO to previous
175 	 * state to avoid confusing the SOR for other output types.
176 	 */
177 	if (!nv_encoder && panel == 0)
178 		nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);
179 
180 	return nv_encoder;
181 }
182 
183 static struct nouveau_encoder *
184 nouveau_connector_of_detect(struct drm_connector *connector)
185 {
186 #ifdef __powerpc__
187 	struct drm_device *dev = connector->dev;
188 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
189 	struct nouveau_encoder *nv_encoder;
190 	struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
191 
192 	if (!dn ||
193 	    !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
194 	      (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
195 		return NULL;
196 
197 	for_each_child_of_node(dn, cn) {
198 		const char *name = of_get_property(cn, "name", NULL);
199 		const void *edid = of_get_property(cn, "EDID", NULL);
200 		int idx = name ? name[strlen(name) - 1] - 'A' : 0;
201 
202 		if (nv_encoder->dcb->i2c_index == idx && edid) {
203 			nv_connector->edid =
204 				kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
205 			of_node_put(cn);
206 			return nv_encoder;
207 		}
208 	}
209 #endif
210 	return NULL;
211 }
212 
213 static void
214 nouveau_connector_set_encoder(struct drm_connector *connector,
215 			      struct nouveau_encoder *nv_encoder)
216 {
217 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
218 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
219 	struct drm_device *dev = connector->dev;
220 
221 	if (nv_connector->detected_encoder == nv_encoder)
222 		return;
223 	nv_connector->detected_encoder = nv_encoder;
224 
225 	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
226 		connector->interlace_allowed = true;
227 		connector->doublescan_allowed = true;
228 	} else
229 	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
230 	    nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
231 		connector->doublescan_allowed = false;
232 		connector->interlace_allowed = false;
233 	} else {
234 		connector->doublescan_allowed = true;
235 		if (drm->device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
236 		    (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
237 		     (dev->pdev->device & 0x0ff0) != 0x0100 &&
238 		     (dev->pdev->device & 0x0ff0) != 0x0150))
239 			/* HW is broken */
240 			connector->interlace_allowed = false;
241 		else
242 			connector->interlace_allowed = true;
243 	}
244 
245 	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
246 		drm_object_property_set_value(&connector->base,
247 			dev->mode_config.dvi_i_subconnector_property,
248 			nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
249 			DRM_MODE_SUBCONNECTOR_DVID :
250 			DRM_MODE_SUBCONNECTOR_DVIA);
251 	}
252 }
253 
254 static enum drm_connector_status
255 nouveau_connector_detect(struct drm_connector *connector, bool force)
256 {
257 	struct drm_device *dev = connector->dev;
258 	struct nouveau_drm *drm = nouveau_drm(dev);
259 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
260 	struct nouveau_encoder *nv_encoder = NULL;
261 	struct nouveau_encoder *nv_partner;
262 	struct i2c_adapter *i2c;
263 	int type;
264 	int ret;
265 	enum drm_connector_status conn_status = connector_status_disconnected;
266 
267 	/* Cleanup the previous EDID block. */
268 	if (nv_connector->edid) {
269 		drm_mode_connector_update_edid_property(connector, NULL);
270 		kfree(nv_connector->edid);
271 		nv_connector->edid = NULL;
272 	}
273 
274 	ret = pm_runtime_get_sync(connector->dev->dev);
275 	if (ret < 0 && ret != -EACCES)
276 		return conn_status;
277 
278 	nv_encoder = nouveau_connector_ddc_detect(connector);
279 	if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
280 		if ((vga_switcheroo_handler_flags() &
281 		     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
282 		    nv_connector->type == DCB_CONNECTOR_LVDS)
283 			nv_connector->edid = drm_get_edid_switcheroo(connector,
284 								     i2c);
285 		else
286 			nv_connector->edid = drm_get_edid(connector, i2c);
287 
288 		drm_mode_connector_update_edid_property(connector,
289 							nv_connector->edid);
290 		if (!nv_connector->edid) {
291 			NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
292 				 connector->name);
293 			goto detect_analog;
294 		}
295 
296 		/* Override encoder type for DVI-I based on whether EDID
297 		 * says the display is digital or analog, both use the
298 		 * same i2c channel so the value returned from ddc_detect
299 		 * isn't necessarily correct.
300 		 */
301 		nv_partner = NULL;
302 		if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
303 			nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
304 		if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
305 			nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
306 
307 		if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
308 				    nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
309 				   (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
310 				    nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
311 			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
312 				type = DCB_OUTPUT_TMDS;
313 			else
314 				type = DCB_OUTPUT_ANALOG;
315 
316 			nv_encoder = find_encoder(connector, type);
317 		}
318 
319 		nouveau_connector_set_encoder(connector, nv_encoder);
320 		conn_status = connector_status_connected;
321 		goto out;
322 	}
323 
324 	nv_encoder = nouveau_connector_of_detect(connector);
325 	if (nv_encoder) {
326 		nouveau_connector_set_encoder(connector, nv_encoder);
327 		conn_status = connector_status_connected;
328 		goto out;
329 	}
330 
331 detect_analog:
332 	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
333 	if (!nv_encoder && !nouveau_tv_disable)
334 		nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
335 	if (nv_encoder && force) {
336 		struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
337 		const struct drm_encoder_helper_funcs *helper =
338 						encoder->helper_private;
339 
340 		if (helper->detect(encoder, connector) ==
341 						connector_status_connected) {
342 			nouveau_connector_set_encoder(connector, nv_encoder);
343 			conn_status = connector_status_connected;
344 			goto out;
345 		}
346 
347 	}
348 
349  out:
350 
351 	pm_runtime_mark_last_busy(connector->dev->dev);
352 	pm_runtime_put_autosuspend(connector->dev->dev);
353 
354 	return conn_status;
355 }
356 
357 static enum drm_connector_status
358 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
359 {
360 	struct drm_device *dev = connector->dev;
361 	struct nouveau_drm *drm = nouveau_drm(dev);
362 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
363 	struct nouveau_encoder *nv_encoder = NULL;
364 	enum drm_connector_status status = connector_status_disconnected;
365 
366 	/* Cleanup the previous EDID block. */
367 	if (nv_connector->edid) {
368 		drm_mode_connector_update_edid_property(connector, NULL);
369 		kfree(nv_connector->edid);
370 		nv_connector->edid = NULL;
371 	}
372 
373 	nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
374 	if (!nv_encoder)
375 		return connector_status_disconnected;
376 
377 	/* Try retrieving EDID via DDC */
378 	if (!drm->vbios.fp_no_ddc) {
379 		status = nouveau_connector_detect(connector, force);
380 		if (status == connector_status_connected)
381 			goto out;
382 	}
383 
384 	/* On some laptops (Sony, i'm looking at you) there appears to
385 	 * be no direct way of accessing the panel's EDID.  The only
386 	 * option available to us appears to be to ask ACPI for help..
387 	 *
388 	 * It's important this check's before trying straps, one of the
389 	 * said manufacturer's laptops are configured in such a way
390 	 * the nouveau decides an entry in the VBIOS FP mode table is
391 	 * valid - it's not (rh#613284)
392 	 */
393 	if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
394 		if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
395 			status = connector_status_connected;
396 			goto out;
397 		}
398 	}
399 
400 	/* If no EDID found above, and the VBIOS indicates a hardcoded
401 	 * modeline is avalilable for the panel, set it as the panel's
402 	 * native mode and exit.
403 	 */
404 	if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
405 	    nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
406 		status = connector_status_connected;
407 		goto out;
408 	}
409 
410 	/* Still nothing, some VBIOS images have a hardcoded EDID block
411 	 * stored for the panel stored in them.
412 	 */
413 	if (!drm->vbios.fp_no_ddc) {
414 		struct edid *edid =
415 			(struct edid *)nouveau_bios_embedded_edid(dev);
416 		if (edid) {
417 			nv_connector->edid =
418 					kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
419 			if (nv_connector->edid)
420 				status = connector_status_connected;
421 		}
422 	}
423 
424 out:
425 #if defined(CONFIG_ACPI_BUTTON) || \
426 	(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
427 	if (status == connector_status_connected &&
428 	    !nouveau_ignorelid && !acpi_lid_open())
429 		status = connector_status_unknown;
430 #endif
431 
432 	drm_mode_connector_update_edid_property(connector, nv_connector->edid);
433 	nouveau_connector_set_encoder(connector, nv_encoder);
434 	return status;
435 }
436 
437 static void
438 nouveau_connector_force(struct drm_connector *connector)
439 {
440 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
441 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
442 	struct nouveau_encoder *nv_encoder;
443 	int type;
444 
445 	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
446 		if (connector->force == DRM_FORCE_ON_DIGITAL)
447 			type = DCB_OUTPUT_TMDS;
448 		else
449 			type = DCB_OUTPUT_ANALOG;
450 	} else
451 		type = DCB_OUTPUT_ANY;
452 
453 	nv_encoder = find_encoder(connector, type);
454 	if (!nv_encoder) {
455 		NV_ERROR(drm, "can't find encoder to force %s on!\n",
456 			 connector->name);
457 		connector->status = connector_status_disconnected;
458 		return;
459 	}
460 
461 	nouveau_connector_set_encoder(connector, nv_encoder);
462 }
463 
464 static int
465 nouveau_connector_set_property(struct drm_connector *connector,
466 			       struct drm_property *property, uint64_t value)
467 {
468 	struct nouveau_display *disp = nouveau_display(connector->dev);
469 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
470 	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
471 	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
472 	struct drm_device *dev = connector->dev;
473 	struct nouveau_crtc *nv_crtc;
474 	int ret;
475 
476 	nv_crtc = NULL;
477 	if (connector->encoder && connector->encoder->crtc)
478 		nv_crtc = nouveau_crtc(connector->encoder->crtc);
479 
480 	/* Scaling mode */
481 	if (property == dev->mode_config.scaling_mode_property) {
482 		bool modeset = false;
483 
484 		switch (value) {
485 		case DRM_MODE_SCALE_NONE:
486 			/* We allow 'None' for EDID modes, even on a fixed
487 			 * panel (some exist with support for lower refresh
488 			 * rates, which people might want to use for power
489 			 * saving purposes).
490 			 *
491 			 * Non-EDID modes will force the use of GPU scaling
492 			 * to the native mode regardless of this setting.
493 			 */
494 			switch (nv_connector->type) {
495 			case DCB_CONNECTOR_LVDS:
496 			case DCB_CONNECTOR_LVDS_SPWG:
497 			case DCB_CONNECTOR_eDP:
498 				/* ... except prior to G80, where the code
499 				 * doesn't support such things.
500 				 */
501 				if (disp->disp.oclass < NV50_DISP)
502 					return -EINVAL;
503 				break;
504 			default:
505 				break;
506 			}
507 			break;
508 		case DRM_MODE_SCALE_FULLSCREEN:
509 		case DRM_MODE_SCALE_CENTER:
510 		case DRM_MODE_SCALE_ASPECT:
511 			break;
512 		default:
513 			return -EINVAL;
514 		}
515 
516 		/* Changing between GPU and panel scaling requires a full
517 		 * modeset
518 		 */
519 		if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
520 		    (value == DRM_MODE_SCALE_NONE))
521 			modeset = true;
522 		nv_connector->scaling_mode = value;
523 
524 		if (!nv_crtc)
525 			return 0;
526 
527 		if (modeset || !nv_crtc->set_scale) {
528 			ret = drm_crtc_helper_set_mode(&nv_crtc->base,
529 							&nv_crtc->base.mode,
530 							nv_crtc->base.x,
531 							nv_crtc->base.y, NULL);
532 			if (!ret)
533 				return -EINVAL;
534 		} else {
535 			ret = nv_crtc->set_scale(nv_crtc, true);
536 			if (ret)
537 				return ret;
538 		}
539 
540 		return 0;
541 	}
542 
543 	/* Underscan */
544 	if (property == disp->underscan_property) {
545 		if (nv_connector->underscan != value) {
546 			nv_connector->underscan = value;
547 			if (!nv_crtc || !nv_crtc->set_scale)
548 				return 0;
549 
550 			return nv_crtc->set_scale(nv_crtc, true);
551 		}
552 
553 		return 0;
554 	}
555 
556 	if (property == disp->underscan_hborder_property) {
557 		if (nv_connector->underscan_hborder != value) {
558 			nv_connector->underscan_hborder = value;
559 			if (!nv_crtc || !nv_crtc->set_scale)
560 				return 0;
561 
562 			return nv_crtc->set_scale(nv_crtc, true);
563 		}
564 
565 		return 0;
566 	}
567 
568 	if (property == disp->underscan_vborder_property) {
569 		if (nv_connector->underscan_vborder != value) {
570 			nv_connector->underscan_vborder = value;
571 			if (!nv_crtc || !nv_crtc->set_scale)
572 				return 0;
573 
574 			return nv_crtc->set_scale(nv_crtc, true);
575 		}
576 
577 		return 0;
578 	}
579 
580 	/* Dithering */
581 	if (property == disp->dithering_mode) {
582 		nv_connector->dithering_mode = value;
583 		if (!nv_crtc || !nv_crtc->set_dither)
584 			return 0;
585 
586 		return nv_crtc->set_dither(nv_crtc, true);
587 	}
588 
589 	if (property == disp->dithering_depth) {
590 		nv_connector->dithering_depth = value;
591 		if (!nv_crtc || !nv_crtc->set_dither)
592 			return 0;
593 
594 		return nv_crtc->set_dither(nv_crtc, true);
595 	}
596 
597 	if (nv_crtc && nv_crtc->set_color_vibrance) {
598 		/* Hue */
599 		if (property == disp->vibrant_hue_property) {
600 			nv_crtc->vibrant_hue = value - 90;
601 			return nv_crtc->set_color_vibrance(nv_crtc, true);
602 		}
603 		/* Saturation */
604 		if (property == disp->color_vibrance_property) {
605 			nv_crtc->color_vibrance = value - 100;
606 			return nv_crtc->set_color_vibrance(nv_crtc, true);
607 		}
608 	}
609 
610 	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
611 		return get_slave_funcs(encoder)->set_property(
612 			encoder, connector, property, value);
613 
614 	return -EINVAL;
615 }
616 
617 static struct drm_display_mode *
618 nouveau_connector_native_mode(struct drm_connector *connector)
619 {
620 	const struct drm_connector_helper_funcs *helper = connector->helper_private;
621 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
622 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
623 	struct drm_device *dev = connector->dev;
624 	struct drm_display_mode *mode, *largest = NULL;
625 	int high_w = 0, high_h = 0, high_v = 0;
626 
627 	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
628 		mode->vrefresh = drm_mode_vrefresh(mode);
629 		if (helper->mode_valid(connector, mode) != MODE_OK ||
630 		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
631 			continue;
632 
633 		/* Use preferred mode if there is one.. */
634 		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
635 			NV_DEBUG(drm, "native mode from preferred\n");
636 			return drm_mode_duplicate(dev, mode);
637 		}
638 
639 		/* Otherwise, take the resolution with the largest width, then
640 		 * height, then vertical refresh
641 		 */
642 		if (mode->hdisplay < high_w)
643 			continue;
644 
645 		if (mode->hdisplay == high_w && mode->vdisplay < high_h)
646 			continue;
647 
648 		if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
649 		    mode->vrefresh < high_v)
650 			continue;
651 
652 		high_w = mode->hdisplay;
653 		high_h = mode->vdisplay;
654 		high_v = mode->vrefresh;
655 		largest = mode;
656 	}
657 
658 	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
659 		      high_w, high_h, high_v);
660 	return largest ? drm_mode_duplicate(dev, largest) : NULL;
661 }
662 
663 struct moderec {
664 	int hdisplay;
665 	int vdisplay;
666 };
667 
668 static struct moderec scaler_modes[] = {
669 	{ 1920, 1200 },
670 	{ 1920, 1080 },
671 	{ 1680, 1050 },
672 	{ 1600, 1200 },
673 	{ 1400, 1050 },
674 	{ 1280, 1024 },
675 	{ 1280, 960 },
676 	{ 1152, 864 },
677 	{ 1024, 768 },
678 	{ 800, 600 },
679 	{ 720, 400 },
680 	{ 640, 480 },
681 	{ 640, 400 },
682 	{ 640, 350 },
683 	{}
684 };
685 
686 static int
687 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
688 {
689 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
690 	struct drm_display_mode *native = nv_connector->native_mode, *m;
691 	struct drm_device *dev = connector->dev;
692 	struct moderec *mode = &scaler_modes[0];
693 	int modes = 0;
694 
695 	if (!native)
696 		return 0;
697 
698 	while (mode->hdisplay) {
699 		if (mode->hdisplay <= native->hdisplay &&
700 		    mode->vdisplay <= native->vdisplay &&
701 		    (mode->hdisplay != native->hdisplay ||
702 		     mode->vdisplay != native->vdisplay)) {
703 			m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
704 					 drm_mode_vrefresh(native), false,
705 					 false, false);
706 			if (!m)
707 				continue;
708 
709 			drm_mode_probed_add(connector, m);
710 			modes++;
711 		}
712 
713 		mode++;
714 	}
715 
716 	return modes;
717 }
718 
719 static void
720 nouveau_connector_detect_depth(struct drm_connector *connector)
721 {
722 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
723 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
724 	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
725 	struct nvbios *bios = &drm->vbios;
726 	struct drm_display_mode *mode = nv_connector->native_mode;
727 	bool duallink;
728 
729 	/* if the edid is feeling nice enough to provide this info, use it */
730 	if (nv_connector->edid && connector->display_info.bpc)
731 		return;
732 
733 	/* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
734 	if (nv_connector->type == DCB_CONNECTOR_eDP) {
735 		connector->display_info.bpc = 6;
736 		return;
737 	}
738 
739 	/* we're out of options unless we're LVDS, default to 8bpc */
740 	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
741 		connector->display_info.bpc = 8;
742 		return;
743 	}
744 
745 	connector->display_info.bpc = 6;
746 
747 	/* LVDS: panel straps */
748 	if (bios->fp_no_ddc) {
749 		if (bios->fp.if_is_24bit)
750 			connector->display_info.bpc = 8;
751 		return;
752 	}
753 
754 	/* LVDS: DDC panel, need to first determine the number of links to
755 	 * know which if_is_24bit flag to check...
756 	 */
757 	if (nv_connector->edid &&
758 	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
759 		duallink = ((u8 *)nv_connector->edid)[121] == 2;
760 	else
761 		duallink = mode->clock >= bios->fp.duallink_transition_clk;
762 
763 	if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
764 	    ( duallink && (bios->fp.strapless_is_24bit & 2)))
765 		connector->display_info.bpc = 8;
766 }
767 
768 static int
769 nouveau_connector_get_modes(struct drm_connector *connector)
770 {
771 	struct drm_device *dev = connector->dev;
772 	struct nouveau_drm *drm = nouveau_drm(dev);
773 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
774 	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
775 	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
776 	int ret = 0;
777 
778 	/* destroy the native mode, the attached monitor could have changed.
779 	 */
780 	if (nv_connector->native_mode) {
781 		drm_mode_destroy(dev, nv_connector->native_mode);
782 		nv_connector->native_mode = NULL;
783 	}
784 
785 	if (nv_connector->edid)
786 		ret = drm_add_edid_modes(connector, nv_connector->edid);
787 	else
788 	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
789 	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
790 	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
791 		struct drm_display_mode mode;
792 
793 		nouveau_bios_fp_mode(dev, &mode);
794 		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
795 	}
796 
797 	/* Determine display colour depth for everything except LVDS now,
798 	 * DP requires this before mode_valid() is called.
799 	 */
800 	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
801 		nouveau_connector_detect_depth(connector);
802 
803 	/* Find the native mode if this is a digital panel, if we didn't
804 	 * find any modes through DDC previously add the native mode to
805 	 * the list of modes.
806 	 */
807 	if (!nv_connector->native_mode)
808 		nv_connector->native_mode =
809 			nouveau_connector_native_mode(connector);
810 	if (ret == 0 && nv_connector->native_mode) {
811 		struct drm_display_mode *mode;
812 
813 		mode = drm_mode_duplicate(dev, nv_connector->native_mode);
814 		drm_mode_probed_add(connector, mode);
815 		ret = 1;
816 	}
817 
818 	/* Determine LVDS colour depth, must happen after determining
819 	 * "native" mode as some VBIOS tables require us to use the
820 	 * pixel clock as part of the lookup...
821 	 */
822 	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
823 		nouveau_connector_detect_depth(connector);
824 
825 	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
826 		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
827 
828 	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
829 	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
830 	    nv_connector->type == DCB_CONNECTOR_eDP)
831 		ret += nouveau_connector_scaler_modes_add(connector);
832 
833 	return ret;
834 }
835 
836 static unsigned
837 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
838 {
839 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
840 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
841 	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
842 
843 	if (hdmi) {
844 		if (nouveau_hdmimhz > 0)
845 			return nouveau_hdmimhz * 1000;
846 		/* Note: these limits are conservative, some Fermi's
847 		 * can do 297 MHz. Unclear how this can be determined.
848 		 */
849 		if (drm->device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
850 			return 297000;
851 		if (drm->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
852 			return 225000;
853 	}
854 	if (dcb->location != DCB_LOC_ON_CHIP ||
855 	    drm->device.info.chipset >= 0x46)
856 		return 165000;
857 	else if (drm->device.info.chipset >= 0x40)
858 		return 155000;
859 	else if (drm->device.info.chipset >= 0x18)
860 		return 135000;
861 	else
862 		return 112000;
863 }
864 
865 static int
866 nouveau_connector_mode_valid(struct drm_connector *connector,
867 			     struct drm_display_mode *mode)
868 {
869 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
870 	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
871 	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
872 	unsigned min_clock = 25000, max_clock = min_clock;
873 	unsigned clock = mode->clock;
874 	bool hdmi;
875 
876 	switch (nv_encoder->dcb->type) {
877 	case DCB_OUTPUT_LVDS:
878 		if (nv_connector->native_mode &&
879 		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
880 		     mode->vdisplay > nv_connector->native_mode->vdisplay))
881 			return MODE_PANEL;
882 
883 		min_clock = 0;
884 		max_clock = 400000;
885 		break;
886 	case DCB_OUTPUT_TMDS:
887 		hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
888 		max_clock = get_tmds_link_bandwidth(connector, hdmi);
889 		if (!hdmi && nouveau_duallink &&
890 		    nv_encoder->dcb->duallink_possible)
891 			max_clock *= 2;
892 		break;
893 	case DCB_OUTPUT_ANALOG:
894 		max_clock = nv_encoder->dcb->crtconf.maxfreq;
895 		if (!max_clock)
896 			max_clock = 350000;
897 		break;
898 	case DCB_OUTPUT_TV:
899 		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
900 	case DCB_OUTPUT_DP:
901 		max_clock  = nv_encoder->dp.link_nr;
902 		max_clock *= nv_encoder->dp.link_bw;
903 		clock = clock * (connector->display_info.bpc * 3) / 10;
904 		break;
905 	default:
906 		BUG_ON(1);
907 		return MODE_BAD;
908 	}
909 
910 	if (clock < min_clock)
911 		return MODE_CLOCK_LOW;
912 
913 	if (clock > max_clock)
914 		return MODE_CLOCK_HIGH;
915 
916 	return MODE_OK;
917 }
918 
919 static struct drm_encoder *
920 nouveau_connector_best_encoder(struct drm_connector *connector)
921 {
922 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
923 
924 	if (nv_connector->detected_encoder)
925 		return to_drm_encoder(nv_connector->detected_encoder);
926 
927 	return NULL;
928 }
929 
930 static const struct drm_connector_helper_funcs
931 nouveau_connector_helper_funcs = {
932 	.get_modes = nouveau_connector_get_modes,
933 	.mode_valid = nouveau_connector_mode_valid,
934 	.best_encoder = nouveau_connector_best_encoder,
935 };
936 
937 static const struct drm_connector_funcs
938 nouveau_connector_funcs = {
939 	.dpms = drm_helper_connector_dpms,
940 	.detect = nouveau_connector_detect,
941 	.destroy = nouveau_connector_destroy,
942 	.fill_modes = drm_helper_probe_single_connector_modes,
943 	.set_property = nouveau_connector_set_property,
944 	.force = nouveau_connector_force
945 };
946 
947 static const struct drm_connector_funcs
948 nouveau_connector_funcs_lvds = {
949 	.dpms = drm_helper_connector_dpms,
950 	.detect = nouveau_connector_detect_lvds,
951 	.destroy = nouveau_connector_destroy,
952 	.fill_modes = drm_helper_probe_single_connector_modes,
953 	.set_property = nouveau_connector_set_property,
954 	.force = nouveau_connector_force
955 };
956 
957 static int
958 nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
959 {
960 	struct nouveau_encoder *nv_encoder = NULL;
961 
962 	if (connector->encoder)
963 		nv_encoder = nouveau_encoder(connector->encoder);
964 	if (nv_encoder && nv_encoder->dcb &&
965 	    nv_encoder->dcb->type == DCB_OUTPUT_DP) {
966 		if (mode == DRM_MODE_DPMS_ON) {
967 			u8 data = DP_SET_POWER_D0;
968 			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
969 			usleep_range(1000, 2000);
970 		} else {
971 			u8 data = DP_SET_POWER_D3;
972 			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
973 		}
974 	}
975 
976 	return drm_helper_connector_dpms(connector, mode);
977 }
978 
979 static const struct drm_connector_funcs
980 nouveau_connector_funcs_dp = {
981 	.dpms = nouveau_connector_dp_dpms,
982 	.detect = nouveau_connector_detect,
983 	.destroy = nouveau_connector_destroy,
984 	.fill_modes = drm_helper_probe_single_connector_modes,
985 	.set_property = nouveau_connector_set_property,
986 	.force = nouveau_connector_force
987 };
988 
989 static int
990 nouveau_connector_hotplug(struct nvif_notify *notify)
991 {
992 	struct nouveau_connector *nv_connector =
993 		container_of(notify, typeof(*nv_connector), hpd);
994 	struct drm_connector *connector = &nv_connector->base;
995 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
996 	const struct nvif_notify_conn_rep_v0 *rep = notify->data;
997 	const char *name = connector->name;
998 
999 	if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1000 	} else {
1001 		bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1002 
1003 		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1004 
1005 		mutex_lock(&drm->dev->mode_config.mutex);
1006 		if (plugged)
1007 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1008 		else
1009 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1010 		mutex_unlock(&drm->dev->mode_config.mutex);
1011 
1012 		drm_helper_hpd_irq_event(connector->dev);
1013 	}
1014 
1015 	return NVIF_NOTIFY_KEEP;
1016 }
1017 
1018 static ssize_t
1019 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1020 {
1021 	struct nouveau_connector *nv_connector =
1022 		container_of(obj, typeof(*nv_connector), aux);
1023 	struct nouveau_encoder *nv_encoder;
1024 	struct nvkm_i2c_aux *aux;
1025 	int ret;
1026 
1027 	nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1028 	if (!nv_encoder || !(aux = nv_encoder->aux))
1029 		return -ENODEV;
1030 	if (WARN_ON(msg->size > 16))
1031 		return -E2BIG;
1032 	if (msg->size == 0)
1033 		return msg->size;
1034 
1035 	ret = nvkm_i2c_aux_acquire(aux);
1036 	if (ret)
1037 		return ret;
1038 
1039 	ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1040 				msg->buffer, msg->size);
1041 	nvkm_i2c_aux_release(aux);
1042 	if (ret >= 0) {
1043 		msg->reply = ret;
1044 		return msg->size;
1045 	}
1046 
1047 	return ret;
1048 }
1049 
1050 static int
1051 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1052 {
1053 	switch (dcb) {
1054 	case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1055 	case DCB_CONNECTOR_TV_0     :
1056 	case DCB_CONNECTOR_TV_1     :
1057 	case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1058 	case DCB_CONNECTOR_DMS59_0  :
1059 	case DCB_CONNECTOR_DMS59_1  :
1060 	case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1061 	case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1062 	case DCB_CONNECTOR_LVDS     :
1063 	case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1064 	case DCB_CONNECTOR_DMS59_DP0:
1065 	case DCB_CONNECTOR_DMS59_DP1:
1066 	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1067 	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1068 	case DCB_CONNECTOR_HDMI_0   :
1069 	case DCB_CONNECTOR_HDMI_1   :
1070 	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1071 	default:
1072 		break;
1073 	}
1074 
1075 	return DRM_MODE_CONNECTOR_Unknown;
1076 }
1077 
1078 struct drm_connector *
1079 nouveau_connector_create(struct drm_device *dev, int index)
1080 {
1081 	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1082 	struct nouveau_drm *drm = nouveau_drm(dev);
1083 	struct nouveau_display *disp = nouveau_display(dev);
1084 	struct nouveau_connector *nv_connector = NULL;
1085 	struct drm_connector *connector;
1086 	int type, ret = 0;
1087 	bool dummy;
1088 
1089 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1090 		nv_connector = nouveau_connector(connector);
1091 		if (nv_connector->index == index)
1092 			return connector;
1093 	}
1094 
1095 	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1096 	if (!nv_connector)
1097 		return ERR_PTR(-ENOMEM);
1098 
1099 	connector = &nv_connector->base;
1100 	nv_connector->index = index;
1101 
1102 	/* attempt to parse vbios connector type and hotplug gpio */
1103 	nv_connector->dcb = olddcb_conn(dev, index);
1104 	if (nv_connector->dcb) {
1105 		u32 entry = ROM16(nv_connector->dcb[0]);
1106 		if (olddcb_conntab(dev)[3] >= 4)
1107 			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1108 
1109 		nv_connector->type = nv_connector->dcb[0];
1110 		if (drm_conntype_from_dcb(nv_connector->type) ==
1111 					  DRM_MODE_CONNECTOR_Unknown) {
1112 			NV_WARN(drm, "unknown connector type %02x\n",
1113 				nv_connector->type);
1114 			nv_connector->type = DCB_CONNECTOR_NONE;
1115 		}
1116 
1117 		/* Gigabyte NX85T */
1118 		if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1119 			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1120 				nv_connector->type = DCB_CONNECTOR_DVI_I;
1121 		}
1122 
1123 		/* Gigabyte GV-NX86T512H */
1124 		if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1125 			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1126 				nv_connector->type = DCB_CONNECTOR_DVI_I;
1127 		}
1128 	} else {
1129 		nv_connector->type = DCB_CONNECTOR_NONE;
1130 	}
1131 
1132 	/* no vbios data, or an unknown dcb connector type - attempt to
1133 	 * figure out something suitable ourselves
1134 	 */
1135 	if (nv_connector->type == DCB_CONNECTOR_NONE) {
1136 		struct nouveau_drm *drm = nouveau_drm(dev);
1137 		struct dcb_table *dcbt = &drm->vbios.dcb;
1138 		u32 encoders = 0;
1139 		int i;
1140 
1141 		for (i = 0; i < dcbt->entries; i++) {
1142 			if (dcbt->entry[i].connector == nv_connector->index)
1143 				encoders |= (1 << dcbt->entry[i].type);
1144 		}
1145 
1146 		if (encoders & (1 << DCB_OUTPUT_DP)) {
1147 			if (encoders & (1 << DCB_OUTPUT_TMDS))
1148 				nv_connector->type = DCB_CONNECTOR_DP;
1149 			else
1150 				nv_connector->type = DCB_CONNECTOR_eDP;
1151 		} else
1152 		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1153 			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1154 				nv_connector->type = DCB_CONNECTOR_DVI_I;
1155 			else
1156 				nv_connector->type = DCB_CONNECTOR_DVI_D;
1157 		} else
1158 		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1159 			nv_connector->type = DCB_CONNECTOR_VGA;
1160 		} else
1161 		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1162 			nv_connector->type = DCB_CONNECTOR_LVDS;
1163 		} else
1164 		if (encoders & (1 << DCB_OUTPUT_TV)) {
1165 			nv_connector->type = DCB_CONNECTOR_TV_0;
1166 		}
1167 	}
1168 
1169 	switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1170 	case DRM_MODE_CONNECTOR_LVDS:
1171 		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1172 		if (ret) {
1173 			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1174 			kfree(nv_connector);
1175 			return ERR_PTR(ret);
1176 		}
1177 
1178 		funcs = &nouveau_connector_funcs_lvds;
1179 		break;
1180 	case DRM_MODE_CONNECTOR_DisplayPort:
1181 	case DRM_MODE_CONNECTOR_eDP:
1182 		nv_connector->aux.dev = dev->dev;
1183 		nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1184 		ret = drm_dp_aux_register(&nv_connector->aux);
1185 		if (ret) {
1186 			NV_ERROR(drm, "failed to register aux channel\n");
1187 			kfree(nv_connector);
1188 			return ERR_PTR(ret);
1189 		}
1190 
1191 		funcs = &nouveau_connector_funcs_dp;
1192 		break;
1193 	default:
1194 		funcs = &nouveau_connector_funcs;
1195 		break;
1196 	}
1197 
1198 	/* defaults, will get overridden in detect() */
1199 	connector->interlace_allowed = false;
1200 	connector->doublescan_allowed = false;
1201 
1202 	drm_connector_init(dev, connector, funcs, type);
1203 	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1204 
1205 	/* Init DVI-I specific properties */
1206 	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1207 		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1208 
1209 	/* Add overscan compensation options to digital outputs */
1210 	if (disp->underscan_property &&
1211 	    (type == DRM_MODE_CONNECTOR_DVID ||
1212 	     type == DRM_MODE_CONNECTOR_DVII ||
1213 	     type == DRM_MODE_CONNECTOR_HDMIA ||
1214 	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1215 		drm_object_attach_property(&connector->base,
1216 					      disp->underscan_property,
1217 					      UNDERSCAN_OFF);
1218 		drm_object_attach_property(&connector->base,
1219 					      disp->underscan_hborder_property,
1220 					      0);
1221 		drm_object_attach_property(&connector->base,
1222 					      disp->underscan_vborder_property,
1223 					      0);
1224 	}
1225 
1226 	/* Add hue and saturation options */
1227 	if (disp->vibrant_hue_property)
1228 		drm_object_attach_property(&connector->base,
1229 					      disp->vibrant_hue_property,
1230 					      90);
1231 	if (disp->color_vibrance_property)
1232 		drm_object_attach_property(&connector->base,
1233 					      disp->color_vibrance_property,
1234 					      150);
1235 
1236 	/* default scaling mode */
1237 	switch (nv_connector->type) {
1238 	case DCB_CONNECTOR_LVDS:
1239 	case DCB_CONNECTOR_LVDS_SPWG:
1240 	case DCB_CONNECTOR_eDP:
1241 		/* see note in nouveau_connector_set_property() */
1242 		if (disp->disp.oclass < NV50_DISP) {
1243 			nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1244 			break;
1245 		}
1246 		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1247 		break;
1248 	default:
1249 		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1250 		break;
1251 	}
1252 
1253 	/* scaling mode property */
1254 	switch (nv_connector->type) {
1255 	case DCB_CONNECTOR_TV_0:
1256 	case DCB_CONNECTOR_TV_1:
1257 	case DCB_CONNECTOR_TV_3:
1258 		break;
1259 	case DCB_CONNECTOR_VGA:
1260 		if (disp->disp.oclass < NV50_DISP)
1261 			break; /* can only scale on DFPs */
1262 		/* fall-through */
1263 	default:
1264 		drm_object_attach_property(&connector->base, dev->mode_config.
1265 					   scaling_mode_property,
1266 					   nv_connector->scaling_mode);
1267 		break;
1268 	}
1269 
1270 	/* dithering properties */
1271 	switch (nv_connector->type) {
1272 	case DCB_CONNECTOR_TV_0:
1273 	case DCB_CONNECTOR_TV_1:
1274 	case DCB_CONNECTOR_TV_3:
1275 	case DCB_CONNECTOR_VGA:
1276 		break;
1277 	default:
1278 		if (disp->dithering_mode) {
1279 			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1280 			drm_object_attach_property(&connector->base,
1281 						   disp->dithering_mode,
1282 						   nv_connector->
1283 						   dithering_mode);
1284 		}
1285 		if (disp->dithering_depth) {
1286 			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1287 			drm_object_attach_property(&connector->base,
1288 						   disp->dithering_depth,
1289 						   nv_connector->
1290 						   dithering_depth);
1291 		}
1292 		break;
1293 	}
1294 
1295 	ret = nvif_notify_init(&disp->disp, nouveau_connector_hotplug, true,
1296 			       NV04_DISP_NTFY_CONN,
1297 			       &(struct nvif_notify_conn_req_v0) {
1298 				.mask = NVIF_NOTIFY_CONN_V0_ANY,
1299 				.conn = index,
1300 			       },
1301 			       sizeof(struct nvif_notify_conn_req_v0),
1302 			       sizeof(struct nvif_notify_conn_rep_v0),
1303 			       &nv_connector->hpd);
1304 	if (ret)
1305 		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1306 	else
1307 		connector->polled = DRM_CONNECTOR_POLL_HPD;
1308 
1309 	drm_connector_register(connector);
1310 	return connector;
1311 }
1312