nouveau_connector.c 31.4 KB
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/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

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#include <acpi/button.h>

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#include "drmP.h"
#include "drm_edid.h"
#include "drm_crtc_helper.h"
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#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_connector.h"
#include "nouveau_hw.h"

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#include <subdev/bios/gpio.h>

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static void nouveau_connector_hotplug(void *, int);

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struct nouveau_encoder *
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find_encoder(struct drm_connector *connector, int type)
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{
	struct drm_device *dev = connector->dev;
	struct nouveau_encoder *nv_encoder;
	struct drm_mode_object *obj;
	int i, id;

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));

		if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
			return nv_encoder;
	}

	return NULL;
}

struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
{
	struct drm_device *dev = to_drm_encoder(encoder)->dev;
	struct drm_connector *drm_connector;

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		if (drm_connector->encoder == to_drm_encoder(encoder))
			return nouveau_connector(drm_connector);
	}

	return NULL;
}

static void
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nouveau_connector_destroy(struct drm_connector *connector)
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{
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_nouveau_private *dev_priv;
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	struct drm_device *dev;
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	if (!nv_connector)
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		return;

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	dev = nv_connector->base.dev;
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	dev_priv = dev->dev_private;
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	NV_DEBUG_KMS(dev, "\n");

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	if (nv_connector->hpd != DCB_GPIO_UNUSED) {
		nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff,
				     nouveau_connector_hotplug, connector);
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	}

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	kfree(nv_connector->edid);
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	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(connector);
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}

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static struct nouveau_i2c_port *
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nouveau_connector_ddc_detect(struct drm_connector *connector,
			     struct nouveau_encoder **pnv_encoder)
{
	struct drm_device *dev = connector->dev;
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	int i;
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	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
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		struct nouveau_i2c_port *i2c = NULL;
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		struct nouveau_encoder *nv_encoder;
		struct drm_mode_object *obj;
		int id;

		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));
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		if (nv_encoder->dcb->i2c_index < 0xf)
			i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
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		if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
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			*pnv_encoder = nv_encoder;
			return i2c;
		}
	}

	return NULL;
}

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static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector *connector)
{
#ifdef __powerpc__
	struct drm_device *dev = connector->dev;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder;
	struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);

	if (!dn ||
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	    !((nv_encoder = find_encoder(connector, OUTPUT_TMDS)) ||
	      (nv_encoder = find_encoder(connector, OUTPUT_ANALOG))))
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		return NULL;

	for_each_child_of_node(dn, cn) {
		const char *name = of_get_property(cn, "name", NULL);
		const void *edid = of_get_property(cn, "EDID", NULL);
		int idx = name ? name[strlen(name) - 1] - 'A' : 0;

		if (nv_encoder->dcb->i2c_index == idx && edid) {
			nv_connector->edid =
				kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			of_node_put(cn);
			return nv_encoder;
		}
	}
#endif
	return NULL;
}

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static void
nouveau_connector_set_encoder(struct drm_connector *connector,
			      struct nouveau_encoder *nv_encoder)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct drm_device *dev = connector->dev;

	if (nv_connector->detected_encoder == nv_encoder)
		return;
	nv_connector->detected_encoder = nv_encoder;

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	if (dev_priv->card_type >= NV_50) {
		connector->interlace_allowed = true;
		connector->doublescan_allowed = true;
	} else
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	if (nv_encoder->dcb->type == OUTPUT_LVDS ||
	    nv_encoder->dcb->type == OUTPUT_TMDS) {
		connector->doublescan_allowed = false;
		connector->interlace_allowed = false;
	} else {
		connector->doublescan_allowed = true;
		if (dev_priv->card_type == NV_20 ||
		   (dev_priv->card_type == NV_10 &&
		    (dev->pci_device & 0x0ff0) != 0x0100 &&
		    (dev->pci_device & 0x0ff0) != 0x0150))
			/* HW is broken */
			connector->interlace_allowed = false;
		else
			connector->interlace_allowed = true;
	}

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	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
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		drm_connector_property_set_value(connector,
			dev->mode_config.dvi_i_subconnector_property,
			nv_encoder->dcb->type == OUTPUT_TMDS ?
			DRM_MODE_SUBCONNECTOR_DVID :
			DRM_MODE_SUBCONNECTOR_DVIA);
	}
}

static enum drm_connector_status
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nouveau_connector_detect(struct drm_connector *connector, bool force)
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{
	struct drm_device *dev = connector->dev;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
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	struct nouveau_encoder *nv_partner;
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	struct nouveau_i2c_port *i2c;
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	int type;
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	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}
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	i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
	if (i2c) {
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		nv_connector->edid = drm_get_edid(connector, nouveau_i2c_adapter(i2c));
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		drm_mode_connector_update_edid_property(connector,
							nv_connector->edid);
		if (!nv_connector->edid) {
			NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
				 drm_get_connector_name(connector));
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			goto detect_analog;
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		}

		if (nv_encoder->dcb->type == OUTPUT_DP &&
		    !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
			NV_ERROR(dev, "Detected %s, but failed init\n",
				 drm_get_connector_name(connector));
			return connector_status_disconnected;
		}

		/* Override encoder type for DVI-I based on whether EDID
		 * says the display is digital or analog, both use the
		 * same i2c channel so the value returned from ddc_detect
		 * isn't necessarily correct.
		 */
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		nv_partner = NULL;
		if (nv_encoder->dcb->type == OUTPUT_TMDS)
			nv_partner = find_encoder(connector, OUTPUT_ANALOG);
		if (nv_encoder->dcb->type == OUTPUT_ANALOG)
			nv_partner = find_encoder(connector, OUTPUT_TMDS);

		if (nv_partner && ((nv_encoder->dcb->type == OUTPUT_ANALOG &&
				    nv_partner->dcb->type == OUTPUT_TMDS) ||
				   (nv_encoder->dcb->type == OUTPUT_TMDS &&
				    nv_partner->dcb->type == OUTPUT_ANALOG))) {
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			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
				type = OUTPUT_TMDS;
			else
				type = OUTPUT_ANALOG;

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			nv_encoder = find_encoder(connector, type);
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		}

		nouveau_connector_set_encoder(connector, nv_encoder);
		return connector_status_connected;
	}

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	nv_encoder = nouveau_connector_of_detect(connector);
	if (nv_encoder) {
		nouveau_connector_set_encoder(connector, nv_encoder);
		return connector_status_connected;
	}

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detect_analog:
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	nv_encoder = find_encoder(connector, OUTPUT_ANALOG);
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	if (!nv_encoder && !nouveau_tv_disable)
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		nv_encoder = find_encoder(connector, OUTPUT_TV);
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	if (nv_encoder && force) {
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		struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
		struct drm_encoder_helper_funcs *helper =
						encoder->helper_private;

		if (helper->detect(encoder, connector) ==
						connector_status_connected) {
			nouveau_connector_set_encoder(connector, nv_encoder);
			return connector_status_connected;
		}

	}

	return connector_status_disconnected;
}

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static enum drm_connector_status
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nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
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{
	struct drm_device *dev = connector->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}

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	nv_encoder = find_encoder(connector, OUTPUT_LVDS);
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	if (!nv_encoder)
		return connector_status_disconnected;

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	/* Try retrieving EDID via DDC */
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	if (!dev_priv->vbios.fp_no_ddc) {
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		status = nouveau_connector_detect(connector, force);
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		if (status == connector_status_connected)
			goto out;
	}

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	/* On some laptops (Sony, i'm looking at you) there appears to
	 * be no direct way of accessing the panel's EDID.  The only
	 * option available to us appears to be to ask ACPI for help..
	 *
	 * It's important this check's before trying straps, one of the
	 * said manufacturer's laptops are configured in such a way
	 * the nouveau decides an entry in the VBIOS FP mode table is
	 * valid - it's not (rh#613284)
	 */
	if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
		if (!nouveau_acpi_edid(dev, connector)) {
			status = connector_status_connected;
			goto out;
		}
	}

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	/* If no EDID found above, and the VBIOS indicates a hardcoded
	 * modeline is avalilable for the panel, set it as the panel's
	 * native mode and exit.
	 */
	if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
	    nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
		status = connector_status_connected;
		goto out;
	}

	/* Still nothing, some VBIOS images have a hardcoded EDID block
	 * stored for the panel stored in them.
	 */
	if (!dev_priv->vbios.fp_no_ddc) {
		struct edid *edid =
			(struct edid *)nouveau_bios_embedded_edid(dev);
		if (edid) {
			nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
			*(nv_connector->edid) = *edid;
			status = connector_status_connected;
		}
	}

out:
#if defined(CONFIG_ACPI_BUTTON) || \
	(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
	if (status == connector_status_connected &&
	    !nouveau_ignorelid && !acpi_lid_open())
		status = connector_status_unknown;
#endif

	drm_mode_connector_update_edid_property(connector, nv_connector->edid);
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	nouveau_connector_set_encoder(connector, nv_encoder);
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	return status;
}

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static void
nouveau_connector_force(struct drm_connector *connector)
{
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	struct nouveau_encoder *nv_encoder;
	int type;

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	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
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		if (connector->force == DRM_FORCE_ON_DIGITAL)
			type = OUTPUT_TMDS;
		else
			type = OUTPUT_ANALOG;
	} else
		type = OUTPUT_ANY;

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	nv_encoder = find_encoder(connector, type);
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	if (!nv_encoder) {
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		NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
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			 drm_get_connector_name(connector));
		connector->status = connector_status_disconnected;
		return;
	}

	nouveau_connector_set_encoder(connector, nv_encoder);
}

static int
nouveau_connector_set_property(struct drm_connector *connector,
			       struct drm_property *property, uint64_t value)
{
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	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct nouveau_display_engine *disp = &dev_priv->engine.display;
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
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	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
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	struct drm_device *dev = connector->dev;
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	struct nouveau_crtc *nv_crtc;
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	int ret;

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	nv_crtc = NULL;
	if (connector->encoder && connector->encoder->crtc)
		nv_crtc = nouveau_crtc(connector->encoder->crtc);

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	/* Scaling mode */
	if (property == dev->mode_config.scaling_mode_property) {
		bool modeset = false;

		switch (value) {
		case DRM_MODE_SCALE_NONE:
		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			return -EINVAL;
		}

		/* LVDS always needs gpu scaling */
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		if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
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		    value == DRM_MODE_SCALE_NONE)
			return -EINVAL;

		/* Changing between GPU and panel scaling requires a full
		 * modeset
		 */
		if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
		    (value == DRM_MODE_SCALE_NONE))
			modeset = true;
		nv_connector->scaling_mode = value;

		if (!nv_crtc)
			return 0;

		if (modeset || !nv_crtc->set_scale) {
			ret = drm_crtc_helper_set_mode(&nv_crtc->base,
							&nv_crtc->base.mode,
							nv_crtc->base.x,
							nv_crtc->base.y, NULL);
			if (!ret)
				return -EINVAL;
		} else {
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			ret = nv_crtc->set_scale(nv_crtc, true);
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			if (ret)
				return ret;
		}

		return 0;
	}

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	/* Underscan */
	if (property == disp->underscan_property) {
		if (nv_connector->underscan != value) {
			nv_connector->underscan = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

	if (property == disp->underscan_hborder_property) {
		if (nv_connector->underscan_hborder != value) {
			nv_connector->underscan_hborder = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

	if (property == disp->underscan_vborder_property) {
		if (nv_connector->underscan_vborder != value) {
			nv_connector->underscan_vborder = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

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	/* Dithering */
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	if (property == disp->dithering_mode) {
		nv_connector->dithering_mode = value;
		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

		return nv_crtc->set_dither(nv_crtc, true);
	}
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	if (property == disp->dithering_depth) {
		nv_connector->dithering_depth = value;
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		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

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		return nv_crtc->set_dither(nv_crtc, true);
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	}

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	if (nv_crtc && nv_crtc->set_color_vibrance) {
		/* Hue */
		if (property == disp->vibrant_hue_property) {
			nv_crtc->vibrant_hue = value - 90;
			return nv_crtc->set_color_vibrance(nv_crtc, true);
		}
		/* Saturation */
		if (property == disp->color_vibrance_property) {
			nv_crtc->color_vibrance = value - 100;
			return nv_crtc->set_color_vibrance(nv_crtc, true);
		}
	}

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	if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
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		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
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	return -EINVAL;
}

static struct drm_display_mode *
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nouveau_connector_native_mode(struct drm_connector *connector)
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{
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	struct drm_connector_helper_funcs *helper = connector->helper_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
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	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

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	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
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		mode->vrefresh = drm_mode_vrefresh(mode);
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		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
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			continue;

		/* Use preferred mode if there is one.. */
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		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
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			NV_DEBUG_KMS(dev, "native mode from preferred\n");
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			return drm_mode_duplicate(dev, mode);
		}

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		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
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		if (mode->hdisplay < high_w)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay < high_h)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
		    mode->vrefresh < high_v)
			continue;

		high_w = mode->hdisplay;
		high_h = mode->vdisplay;
		high_v = mode->vrefresh;
		largest = mode;
	}

583
	NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
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628
629
630
631
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634
635
636
637
638
639
640
641
642
643
		      high_w, high_h, high_v);
	return largest ? drm_mode_duplicate(dev, largest) : NULL;
}

struct moderec {
	int hdisplay;
	int vdisplay;
};

static struct moderec scaler_modes[] = {
	{ 1920, 1200 },
	{ 1920, 1080 },
	{ 1680, 1050 },
	{ 1600, 1200 },
	{ 1400, 1050 },
	{ 1280, 1024 },
	{ 1280, 960 },
	{ 1152, 864 },
	{ 1024, 768 },
	{ 800, 600 },
	{ 720, 400 },
	{ 640, 480 },
	{ 640, 400 },
	{ 640, 350 },
	{}
};

static int
nouveau_connector_scaler_modes_add(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_display_mode *native = nv_connector->native_mode, *m;
	struct drm_device *dev = connector->dev;
	struct moderec *mode = &scaler_modes[0];
	int modes = 0;

	if (!native)
		return 0;

	while (mode->hdisplay) {
		if (mode->hdisplay <= native->hdisplay &&
		    mode->vdisplay <= native->vdisplay) {
			m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
					 drm_mode_vrefresh(native), false,
					 false, false);
			if (!m)
				continue;

			m->type |= DRM_MODE_TYPE_DRIVER;

			drm_mode_probed_add(connector, m);
			modes++;
		}

		mode++;
	}

	return modes;
}

644
645
646
647
648
649
650
651
652
653
654
655
656
657
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
	struct nvbios *bios = &dev_priv->vbios;
	struct drm_display_mode *mode = nv_connector->native_mode;
	bool duallink;

	/* if the edid is feeling nice enough to provide this info, use it */
	if (nv_connector->edid && connector->display_info.bpc)
		return;

658
659
660
661
662
663
664
	/* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
	if (nv_connector->type == DCB_CONNECTOR_eDP) {
		connector->display_info.bpc = 6;
		return;
	}

	/* we're out of options unless we're LVDS, default to 8bpc */
665
666
	if (nv_encoder->dcb->type != OUTPUT_LVDS) {
		connector->display_info.bpc = 8;
667
		return;
668
669
670
	}

	connector->display_info.bpc = 6;
671
672
673
674
675
676
677
678
679
680
681
682

	/* LVDS: panel straps */
	if (bios->fp_no_ddc) {
		if (bios->fp.if_is_24bit)
			connector->display_info.bpc = 8;
		return;
	}

	/* LVDS: DDC panel, need to first determine the number of links to
	 * know which if_is_24bit flag to check...
	 */
	if (nv_connector->edid &&
683
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
684
685
686
687
688
689
690
691
692
		duallink = ((u8 *)nv_connector->edid)[121] == 2;
	else
		duallink = mode->clock >= bios->fp.duallink_transition_clk;

	if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
	    ( duallink && (bios->fp.strapless_is_24bit & 2)))
		connector->display_info.bpc = 8;
}

693
694
695
696
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
697
	struct drm_nouveau_private *dev_priv = dev->dev_private;
698
699
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
700
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
701
702
	int ret = 0;

703
	/* destroy the native mode, the attached monitor could have changed.
704
	 */
705
	if (nv_connector->native_mode) {
706
707
708
709
710
711
		drm_mode_destroy(dev, nv_connector->native_mode);
		nv_connector->native_mode = NULL;
	}

	if (nv_connector->edid)
		ret = drm_add_edid_modes(connector, nv_connector->edid);
712
713
714
	else
	if (nv_encoder->dcb->type == OUTPUT_LVDS &&
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
715
	     dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
716
717
718
719
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
720
	}
721

722
723
724
725
726
727
	/* Determine display colour depth for everything except LVDS now,
	 * DP requires this before mode_valid() is called.
	 */
	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);

728
729
730
731
732
733
	/* Find the native mode if this is a digital panel, if we didn't
	 * find any modes through DDC previously add the native mode to
	 * the list of modes.
	 */
	if (!nv_connector->native_mode)
		nv_connector->native_mode =
734
			nouveau_connector_native_mode(connector);
735
736
737
738
739
740
741
742
	if (ret == 0 && nv_connector->native_mode) {
		struct drm_display_mode *mode;

		mode = drm_mode_duplicate(dev, nv_connector->native_mode);
		drm_mode_probed_add(connector, mode);
		ret = 1;
	}

743
744
745
	/* Determine LVDS colour depth, must happen after determining
	 * "native" mode as some VBIOS tables require us to use the
	 * pixel clock as part of the lookup...
746
	 */
747
748
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
749

750
	if (nv_encoder->dcb->type == OUTPUT_TV)
751
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
752

753
754
755
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
756
757
758
759
760
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct dcb_entry *dcb = nv_connector->detected_encoder->dcb;

	if (dcb->location != DCB_LOC_ON_CHIP ||
	    dev_priv->chipset >= 0x46)
		return 165000;
	else if (dev_priv->chipset >= 0x40)
		return 155000;
	else if (dev_priv->chipset >= 0x18)
		return 135000;
	else
		return 112000;
}

779
780
781
782
783
784
static int
nouveau_connector_mode_valid(struct drm_connector *connector,
			     struct drm_display_mode *mode)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
785
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
786
787
788
789
790
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
	case OUTPUT_LVDS:
791
792
793
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
794
795
796
797
798
799
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
	case OUTPUT_TMDS:
800
801
802
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
803
804
805
806
807
808
809
		break;
	case OUTPUT_ANALOG:
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
	case OUTPUT_TV:
810
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
811
	case OUTPUT_DP:
812
813
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
814
		clock = clock * (connector->display_info.bpc * 3) / 10;
815
		break;
816
817
818
	default:
		BUG_ON(1);
		return MODE_BAD;
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
	}

	if (clock < min_clock)
		return MODE_CLOCK_LOW;

	if (clock > max_clock)
		return MODE_CLOCK_HIGH;

	return MODE_OK;
}

static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);

	if (nv_connector->detected_encoder)
		return to_drm_encoder(nv_connector->detected_encoder);

	return NULL;
}

static const struct drm_connector_helper_funcs
nouveau_connector_helper_funcs = {
	.get_modes = nouveau_connector_get_modes,
	.mode_valid = nouveau_connector_mode_valid,
	.best_encoder = nouveau_connector_best_encoder,
};

static const struct drm_connector_funcs
nouveau_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};

860
861
862
863
864
865
866
867
868
869
870
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect_lvds,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};
871

872
873
874
875
876
877
878
879
static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)
{
	switch (dcb) {
	case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
	case DCB_CONNECTOR_TV_0     :
	case DCB_CONNECTOR_TV_1     :
	case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
880
881
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
882
883
884
885
	case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
	case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
	case DCB_CONNECTOR_LVDS     :
	case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
886
887
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
888
889
890
891
892
893
894
895
896
897
898
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
	case DCB_CONNECTOR_HDMI_1   : return DRM_MODE_CONNECTOR_HDMIA;
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

899
900
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
901
{
902
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
903
	struct drm_nouveau_private *dev_priv = dev->dev_private;
904
	struct nouveau_display_engine *disp = &dev_priv->engine.display;
905
906
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
907
	int type, ret = 0;
908
	bool dummy;
909

910
	NV_DEBUG_KMS(dev, "\n");
911

912
913
914
915
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
916
917
	}

918
919
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
920
		return ERR_PTR(-ENOMEM);
921

922
	connector = &nv_connector->base;
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
	nv_connector->dcb = dcb_conn(dev, index);
	if (nv_connector->dcb) {
		static const u8 hpd[16] = {
			0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
			0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
		};

		u32 entry = ROM16(nv_connector->dcb[0]);
		if (dcb_conntab(dev)[3] >= 4)
			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;

		nv_connector->hpd = ffs((entry & 0x07033000) >> 12);
		nv_connector->hpd = hpd[nv_connector->hpd];

		nv_connector->type = nv_connector->dcb[0];
		if (drm_conntype_from_dcb(nv_connector->type) ==
					  DRM_MODE_CONNECTOR_Unknown) {
			NV_WARN(dev, "unknown connector type %02x\n",
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
947

948
949
950
951
952
		/* Gigabyte NX85T */
		if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
				nv_connector->type = DCB_CONNECTOR_DVI_I;
		}
953

954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
		/* Gigabyte GV-NX86T512H */
		if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
				nv_connector->type = DCB_CONNECTOR_DVI_I;
		}
	} else {
		nv_connector->type = DCB_CONNECTOR_NONE;
		nv_connector->hpd = DCB_GPIO_UNUSED;
	}

	/* no vbios data, or an unknown dcb connector type - attempt to
	 * figure out something suitable ourselves
	 */
	if (nv_connector->type == DCB_CONNECTOR_NONE) {
		struct drm_nouveau_private *dev_priv = dev->dev_private;
		struct dcb_table *dcbt = &dev_priv->vbios.dcb;
		u32 encoders = 0;
		int i;

		for (i = 0; i < dcbt->entries; i++) {
			if (dcbt->entry[i].connector == nv_connector->index)
				encoders |= (1 << dcbt->entry[i].type);
		}
977

978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
		if (encoders & (1 << OUTPUT_DP)) {
			if (encoders & (1 << OUTPUT_TMDS))
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
		if (encoders & (1 << OUTPUT_TMDS)) {
			if (encoders & (1 << OUTPUT_ANALOG))
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
		if (encoders & (1 << OUTPUT_ANALOG)) {
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
		if (encoders & (1 << OUTPUT_LVDS)) {
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
		if (encoders & (1 << OUTPUT_TV)) {
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1000

1001
1002
1003
	type = drm_conntype_from_dcb(nv_connector->type);
	if (type == DRM_MODE_CONNECTOR_LVDS) {
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1004
		if (ret) {
1005
1006
1007
			NV_ERROR(dev, "Error parsing LVDS table, disabling\n");
			kfree(nv_connector);
			return ERR_PTR(ret);
1008
		}
1009
1010
1011
1012

		funcs = &nouveau_connector_funcs_lvds;
	} else {
		funcs = &nouveau_connector_funcs;
1013
1014
	}

1015
1016
1017
1018
1019
1020
1021
	/* defaults, will get overridden in detect() */
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;

	drm_connector_init(dev, connector, funcs, type);
	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);

1022
	/* Init DVI-I specific properties */
1023
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1024
1025
		drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);

1026
	/* Add overscan compensation options to digital outputs */
1027
	if (disp->underscan_property &&
1028
1029
1030
1031
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
		drm_connector_attach_property(connector,
					      disp->underscan_property,
					      UNDERSCAN_OFF);
		drm_connector_attach_property(connector,
					      disp->underscan_hborder_property,
					      0);
		drm_connector_attach_property(connector,
					      disp->underscan_vborder_property,
					      0);
	}

1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
		drm_connector_attach_property(connector,
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
		drm_connector_attach_property(connector,
					      disp->color_vibrance_property,
					      150);

1053
	switch (nv_connector->type) {
1054
1055
	case DCB_CONNECTOR_VGA:
		if (dev_priv->card_type >= NV_50) {
1056
1057
1058
1059
			drm_connector_attach_property(connector,
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
		/* fall-through */
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
		break;
	default:
		nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;

		drm_connector_attach_property(connector,
				dev->mode_config.scaling_mode_property,
				nv_connector->scaling_mode);
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
		if (disp->dithering_mode) {
			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
			drm_connector_attach_property(connector,
						disp->dithering_mode,
						nv_connector->dithering_mode);
		}
		if (disp->dithering_depth) {
			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
			drm_connector_attach_property(connector,
						disp->dithering_depth,
						nv_connector->dithering_depth);
		}
1084
		break;
1085
1086
	}

1087
1088
1089
1090
1091
1092
1093
	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
	if (nv_connector->hpd != DCB_GPIO_UNUSED) {
		ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff,
					   nouveau_connector_hotplug,
					   connector);
		if (ret == 0)
			connector->polled = DRM_CONNECTOR_POLL_HPD;
1094
1095
	}

1096
	drm_sysfs_connector_add(connector);
1097
	return connector;
1098
}
1099
1100
1101
1102
1103
1104
1105

static void
nouveau_connector_hotplug(void *data, int plugged)
{
	struct drm_connector *connector = data;
	struct drm_device *dev = connector->dev;

1106
1107
	NV_DEBUG(dev, "%splugged %s\n", plugged ? "" : "un",
		 drm_get_connector_name(connector));
1108

1109
1110
1111
1112
	if (plugged)
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
	else
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1113
1114
1115

	drm_helper_hpd_irq_event(dev);
}