nouveau_connector.c 33.8 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 <linux/pm_runtime.h>

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#include <drm/drmP.h>
#include <drm/drm_edid.h>
#include <drm/drm_crtc_helper.h>
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#include "nouveau_reg.h"
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#include "nouveau_drm.h"
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#include "dispnv04/hw.h"
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#include "nouveau_acpi.h"
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#include "nouveau_display.h"
#include "nouveau_connector.h"
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#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
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#include <subdev/i2c.h>
#include <subdev/gpio.h>

MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
static int nouveau_tv_disable = 0;
module_param_named(tv_disable, nouveau_tv_disable, int, 0400);

MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
static int nouveau_ignorelid = 0;
module_param_named(ignorelid, nouveau_ignorelid, int, 0400);

MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
static int nouveau_duallink = 1;
module_param_named(duallink, nouveau_duallink, int, 0400);
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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));

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		if (type == DCB_OUTPUT_ANY || nv_encoder->dcb->type == type)
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			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);
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	nouveau_event_ref(NULL, &nv_connector->hpd_func);
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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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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	struct nouveau_i2c_port *port = NULL;
	int i, panel = -ENODEV;

	/* eDP panels need powering on by us (if the VBIOS doesn't default it
	 * to on) before doing any AUX channel transactions.  LVDS panel power
	 * is handled by the SOR itself, and not required for LVDS DDC.
	 */
	if (nv_connector->type == DCB_CONNECTOR_eDP) {
		panel = gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
		if (panel == 0) {
			gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
			msleep(300);
		}
	}
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	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		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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		port = nv_encoder->i2c;
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		if (port && nv_probe_i2c(port, 0x50)) {
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			*pnv_encoder = nv_encoder;
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			break;
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		}
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		port = NULL;
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	}

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	/* eDP panel not detected, restore panel power GPIO to previous
	 * state to avoid confusing the SOR for other output types.
	 */
	if (!port && panel == 0)
		gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);

	return port;
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}

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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, DCB_OUTPUT_TMDS)) ||
	      (nv_encoder = find_encoder(connector, DCB_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);
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	struct nouveau_drm *drm = nouveau_drm(connector->dev);
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	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 (nv_device(drm->device)->card_type >= NV_50) {
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		connector->interlace_allowed = true;
		connector->doublescan_allowed = true;
	} else
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	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
	    nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
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		connector->doublescan_allowed = false;
		connector->interlace_allowed = false;
	} else {
		connector->doublescan_allowed = true;
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		if (nv_device(drm->device)->card_type == NV_20 ||
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		    ((nv_device(drm->device)->card_type == NV_10 ||
		      nv_device(drm->device)->card_type == NV_11) &&
		     (dev->pdev->device & 0x0ff0) != 0x0100 &&
		     (dev->pdev->device & 0x0ff0) != 0x0150))
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			/* 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_object_property_set_value(&connector->base,
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			dev->mode_config.dvi_i_subconnector_property,
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			nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
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			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;
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	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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	int ret;
	enum drm_connector_status conn_status = connector_status_disconnected;
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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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	ret = pm_runtime_get_sync(connector->dev->dev);
	if (ret < 0)
		return conn_status;

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	i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
	if (i2c) {
		nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
		drm_mode_connector_update_edid_property(connector,
							nv_connector->edid);
		if (!nv_connector->edid) {
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			NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
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				 drm_get_connector_name(connector));
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			goto detect_analog;
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		}

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		if (nv_encoder->dcb->type == DCB_OUTPUT_DP &&
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		    !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
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			NV_ERROR(drm, "Detected %s, but failed init\n",
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				 drm_get_connector_name(connector));
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			conn_status = connector_status_disconnected;
			goto out;
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		}

		/* 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;
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		if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
			nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
		if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
			nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);

		if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
				    nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
				   (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
				    nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
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			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
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				type = DCB_OUTPUT_TMDS;
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			else
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				type = DCB_OUTPUT_ANALOG;
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			nv_encoder = find_encoder(connector, type);
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		}

		nouveau_connector_set_encoder(connector, nv_encoder);
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		conn_status = connector_status_connected;
		goto out;
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	}

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	nv_encoder = nouveau_connector_of_detect(connector);
	if (nv_encoder) {
		nouveau_connector_set_encoder(connector, nv_encoder);
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		conn_status = connector_status_connected;
		goto out;
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	}

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detect_analog:
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	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
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	if (!nv_encoder && !nouveau_tv_disable)
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		nv_encoder = find_encoder(connector, DCB_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);
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			conn_status = connector_status_connected;
			goto out;
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		}

	}

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 out:

	pm_runtime_mark_last_busy(connector->dev->dev);
	pm_runtime_put_autosuspend(connector->dev->dev);

	return conn_status;
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}

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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;
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	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, DCB_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 (!drm->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) {
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		if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
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			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.
	 */
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	if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
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	    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.
	 */
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	if (!drm->vbios.fp_no_ddc) {
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		struct edid *edid =
			(struct edid *)nouveau_bios_embedded_edid(dev);
		if (edid) {
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			nv_connector->edid =
					kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			if (nv_connector->edid)
				status = connector_status_connected;
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		}
	}

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_drm *drm = nouveau_drm(connector->dev);
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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)
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			type = DCB_OUTPUT_TMDS;
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		else
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			type = DCB_OUTPUT_ANALOG;
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	} else
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		type = DCB_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(drm, "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 nouveau_display *disp = nouveau_display(connector->dev);
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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);
		}
	}

577
	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
578
579
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
580
581
582
583
584

	return -EINVAL;
}

static struct drm_display_mode *
585
nouveau_connector_native_mode(struct drm_connector *connector)
586
{
587
	struct drm_connector_helper_funcs *helper = connector->helper_private;
588
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
589
590
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
591
592
593
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

594
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
595
		mode->vrefresh = drm_mode_vrefresh(mode);
596
597
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
598
599
600
			continue;

		/* Use preferred mode if there is one.. */
601
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
602
			NV_DEBUG(drm, "native mode from preferred\n");
603
604
605
			return drm_mode_duplicate(dev, mode);
		}

606
607
608
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
		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;
	}

625
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
		      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;
}

686
687
688
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
689
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
690
691
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
692
	struct nvbios *bios = &drm->vbios;
693
694
695
696
697
698
699
	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;

700
701
702
703
704
705
706
	/* 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 */
707
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
708
		connector->display_info.bpc = 8;
709
		return;
710
711
712
	}

	connector->display_info.bpc = 6;
713
714
715
716
717
718
719
720
721
722
723
724

	/* 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 &&
725
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
726
727
728
729
730
731
732
733
734
		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;
}

735
736
737
738
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
739
	struct nouveau_drm *drm = nouveau_drm(dev);
740
741
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
742
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
743
744
	int ret = 0;

745
	/* destroy the native mode, the attached monitor could have changed.
746
	 */
747
	if (nv_connector->native_mode) {
748
749
750
751
752
753
		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);
754
	else
755
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
756
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
757
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
758
759
760
761
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
762
	}
763

764
765
766
767
768
769
	/* 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);

770
771
772
773
774
775
	/* 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 =
776
			nouveau_connector_native_mode(connector);
777
778
779
780
781
782
783
784
	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;
	}

785
786
787
	/* 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...
788
	 */
789
790
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
791

792
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
793
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
794

795
796
797
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
798
799
800
801
802
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

803
804
805
806
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
807
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
808
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
809
810

	if (dcb->location != DCB_LOC_ON_CHIP ||
811
	    nv_device(drm->device)->chipset >= 0x46)
812
		return 165000;
813
	else if (nv_device(drm->device)->chipset >= 0x40)
814
		return 155000;
815
	else if (nv_device(drm->device)->chipset >= 0x18)
816
817
818
819
820
		return 135000;
	else
		return 112000;
}

821
822
823
824
825
826
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;
827
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
828
829
830
831
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
832
	case DCB_OUTPUT_LVDS:
833
834
835
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
836
837
838
839
840
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
841
	case DCB_OUTPUT_TMDS:
842
843
844
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
845
		break;
846
	case DCB_OUTPUT_ANALOG:
847
848
849
850
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
851
	case DCB_OUTPUT_TV:
852
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
853
	case DCB_OUTPUT_DP:
854
855
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
856
		clock = clock * (connector->display_info.bpc * 3) / 10;
857
		break;
858
859
860
	default:
		BUG_ON(1);
		return MODE_BAD;
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
	}

	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
};

902
903
904
905
906
907
908
909
910
911
912
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
};
913

914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
static void
nouveau_connector_hotplug_work(struct work_struct *work)
{
	struct nouveau_connector *nv_connector =
		container_of(work, struct nouveau_connector, hpd_work);
	struct drm_connector *connector = &nv_connector->base;
	struct drm_device *dev = connector->dev;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	bool plugged = gpio->get(gpio, 0, nv_connector->hpd.func, 0xff);

	NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un",
		 drm_get_connector_name(connector));

	if (plugged)
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
	else
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);

	drm_helper_hpd_irq_event(dev);
}

static int
937
nouveau_connector_hotplug(void *data, int index)
938
{
939
	struct nouveau_connector *nv_connector = data;
940
941
942
943
	schedule_work(&nv_connector->hpd_work);
	return NVKM_EVENT_KEEP;
}

944
945
946
947
948
949
950
951
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;
952
953
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
954
955
956
957
	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;
958
959
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
960
961
962
963
964
965
966
967
968
969
970
	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;
}

971
972
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
973
{
974
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
975
976
977
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	struct nouveau_display *disp = nouveau_display(dev);
978
979
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
980
	int type, ret = 0;
981
	bool dummy;
982

983
984
985
986
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
987
988
	}

989
990
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
991
		return ERR_PTR(-ENOMEM);
992

993
	connector = &nv_connector->base;
994
	INIT_WORK(&nv_connector->hpd_work, nouveau_connector_hotplug_work);
995
996
997
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
998
	nv_connector->dcb = olddcb_conn(dev, index);
999
1000
1001
1002
1003
1004
1005
	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]);
1006
		if (olddcb_conntab(dev)[3] >= 4)
1007
1008
			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;

1009
1010
1011
1012
		ret = gpio->find(gpio, 0, hpd[ffs((entry & 0x07033000) >> 12)],
				 DCB_GPIO_UNUSED, &nv_connector->hpd);
		if (ret)
			nv_connector->hpd.func = DCB_GPIO_UNUSED;
1013

1014
1015
1016
1017
1018
1019
1020
		if (nv_connector->hpd.func != DCB_GPIO_UNUSED) {
			nouveau_event_new(gpio->events, nv_connector->hpd.line,
					  nouveau_connector_hotplug,
					  nv_connector,
					 &nv_connector->hpd_func);
		}

1021
1022
1023
		nv_connector->type = nv_connector->dcb[0];
		if (drm_conntype_from_dcb(nv_connector->type) ==
					  DRM_MODE_CONNECTOR_Unknown) {
1024
			NV_WARN(drm, "unknown connector type %02x\n",
1025
1026
1027
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1028

1029
1030
1031
1032
1033
		/* 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;
		}
1034

1035
1036
1037
1038
1039
1040
1041
		/* 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;
1042
		nv_connector->hpd.func = DCB_GPIO_UNUSED;
1043
1044
1045
1046
1047
1048
	}

	/* no vbios data, or an unknown dcb connector type - attempt to
	 * figure out something suitable ourselves
	 */
	if (nv_connector->type == DCB_CONNECTOR_NONE) {
1049
1050
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1051
1052
1053
1054
1055
1056
1057
		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);
		}
1058

1059
1060
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1061
1062
1063
1064
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1065
1066
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1067
1068
1069
1070
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1071
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1072
1073
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1074
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1075
1076
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1077
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1078
1079
1080
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1081

1082
1083
1084
	type = drm_conntype_from_dcb(nv_connector->type);
	if (type == DRM_MODE_CONNECTOR_LVDS) {
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1085
		if (ret) {
1086
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1087
1088
			kfree(nv_connector);
			return ERR_PTR(ret);
1089
		}
1090
1091
1092
1093

		funcs = &nouveau_connector_funcs_lvds;
	} else {
		funcs = &nouveau_connector_funcs;
1094
1095
	}

1096
1097
1098
1099
1100
1101
1102
	/* 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);

1103
	/* Init DVI-I specific properties */
1104
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1105
		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1106

1107
	/* Add overscan compensation options to digital outputs */
1108
	if (disp->underscan_property &&
1109
1110
1111
1112
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1113
		drm_object_attach_property(&connector->base,
1114
1115
					      disp->underscan_property,
					      UNDERSCAN_OFF);
1116
		drm_object_attach_property(&connector->base,
1117
1118
					      disp->underscan_hborder_property,
					      0);
1119
		drm_object_attach_property(&connector->base,
1120
1121
1122
1123
					      disp->underscan_vborder_property,
					      0);
	}

1124
1125
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
1126
		drm_object_attach_property(&connector->base,
1127
1128
1129
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
1130
		drm_object_attach_property(&connector->base,
1131
1132
1133
					      disp->color_vibrance_property,
					      150);

1134
	switch (nv_connector->type) {
1135
	case DCB_CONNECTOR_VGA:
1136
		if (nv_device(drm->device)->card_type >= NV_50) {
1137
			drm_object_attach_property(&connector->base,
1138
1139
1140
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
1141
1142
1143
1144
1145
1146
1147
1148
1149
		/* 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;

1150
		drm_object_attach_property(&connector->base,
1151
1152
				dev->mode_config.scaling_mode_property,
				nv_connector->scaling_mode);
1153
1154
		if (disp->dithering_mode) {
			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1155
			drm_object_attach_property(&connector->base,
1156
1157
1158
1159
1160
						disp->dithering_mode,
						nv_connector->dithering_mode);
		}
		if (disp->dithering_depth) {
			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1161
			drm_object_attach_property(&connector->base,
1162
1163
1164
						disp->dithering_depth,
						nv_connector->dithering_depth);
		}
1165
		break;
1166
1167
	}

1168
	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1169
1170
	if (nv_connector->hpd.func != DCB_GPIO_UNUSED)
		connector->polled = DRM_CONNECTOR_POLL_HPD;
1171

1172
	drm_sysfs_connector_add(connector);
1173
	return connector;
1174
}