nouveau_connector.c 35.5 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 <nvif/event.h>

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

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

MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
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int nouveau_duallink = 1;
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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;
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	struct drm_encoder *enc;
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	int i, id;

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

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		enc = drm_encoder_find(dev, id);
		if (!enc)
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			continue;
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		nv_encoder = nouveau_encoder(enc);
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		if (type == DCB_OUTPUT_ANY ||
		    (nv_encoder->dcb && 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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	nvif_notify_fini(&nv_connector->hpd);
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	kfree(nv_connector->edid);
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	drm_connector_unregister(connector);
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	drm_connector_cleanup(connector);
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	if (nv_connector->aux.transfer)
		drm_dp_aux_unregister(&nv_connector->aux);
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	kfree(connector);
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}

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static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector *connector)
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{
	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 = nvkm_gpio(&drm->device);
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	struct nouveau_encoder *nv_encoder;
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	struct drm_encoder *encoder;
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	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; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		int id = connector->encoder_ids[i];
		if (id == 0)
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			break;

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		encoder = drm_encoder_find(dev, id);
		if (!encoder)
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			continue;
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		nv_encoder = nouveau_encoder(encoder);
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		if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
			int ret = nouveau_dp_detect(nv_encoder);
			if (ret == 0)
				break;
		} else
		if (nv_encoder->i2c) {
			if (nv_probe_i2c(nv_encoder->i2c, 0x50))
				break;
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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.
	 */
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	if (!nv_encoder && panel == 0)
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		gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);

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	return nv_encoder;
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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 (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
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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 (drm->device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
		    (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
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		     (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);
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	if (ret < 0 && ret != -EACCES)
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		return conn_status;

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	nv_encoder = nouveau_connector_ddc_detect(connector);
	if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
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		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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				 connector->name);
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			goto detect_analog;
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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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			 connector->name);
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		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:
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			/* We allow 'None' for EDID modes, even on a fixed
			 * panel (some exist with support for lower refresh
			 * rates, which people might want to use for power
			 * saving purposes).
			 *
			 * Non-EDID modes will force the use of GPU scaling
			 * to the native mode regardless of this setting.
			 */
			switch (nv_connector->type) {
			case DCB_CONNECTOR_LVDS:
			case DCB_CONNECTOR_LVDS_SPWG:
			case DCB_CONNECTOR_eDP:
				/* ... except prior to G80, where the code
				 * doesn't support such things.
				 */
				if (disp->disp.oclass < NV50_DISP)
					return -EINVAL;
				break;
			default:
				break;
			}
			break;
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		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			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;

569
		return nv_crtc->set_dither(nv_crtc, true);
570
571
	}

572
573
574
575
576
577
578
579
580
581
582
583
584
	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);
		}
	}

585
	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
586
587
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
588
589
590
591
592

	return -EINVAL;
}

static struct drm_display_mode *
593
nouveau_connector_native_mode(struct drm_connector *connector)
594
{
595
	struct drm_connector_helper_funcs *helper = connector->helper_private;
596
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
597
598
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
599
600
601
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

602
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
603
		mode->vrefresh = drm_mode_vrefresh(mode);
604
605
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
606
607
608
			continue;

		/* Use preferred mode if there is one.. */
609
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
610
			NV_DEBUG(drm, "native mode from preferred\n");
611
612
613
			return drm_mode_duplicate(dev, mode);
		}

614
615
616
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
		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;
	}

633
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
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
686
687
688
689
690
691
		      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;

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

		mode++;
	}

	return modes;
}

692
693
694
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
695
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
696
697
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
698
	struct nvbios *bios = &drm->vbios;
699
700
701
702
703
704
705
	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;

706
707
708
709
710
711
712
	/* 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 */
713
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
714
		connector->display_info.bpc = 8;
715
		return;
716
717
718
	}

	connector->display_info.bpc = 6;
719
720
721
722
723
724
725
726
727
728
729
730

	/* 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 &&
731
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
732
733
734
735
736
737
738
739
740
		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;
}

741
742
743
744
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
745
	struct nouveau_drm *drm = nouveau_drm(dev);
746
747
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
748
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
749
750
	int ret = 0;

751
	/* destroy the native mode, the attached monitor could have changed.
752
	 */
753
	if (nv_connector->native_mode) {
754
755
756
757
758
759
		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);
760
	else
761
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
762
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
763
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
764
765
766
767
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
768
	}
769

770
771
772
773
774
775
	/* 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);

776
777
778
779
780
781
	/* 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 =
782
			nouveau_connector_native_mode(connector);
783
784
785
786
787
788
789
790
	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;
	}

791
792
793
	/* 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...
794
	 */
795
796
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
797

798
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
799
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
800

801
802
803
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
804
805
806
807
808
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

809
810
811
812
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
813
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
814
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
815
816

	if (dcb->location != DCB_LOC_ON_CHIP ||
817
	    drm->device.info.chipset >= 0x46)
818
		return 165000;
819
	else if (drm->device.info.chipset >= 0x40)
820
		return 155000;
821
	else if (drm->device.info.chipset >= 0x18)
822
823
824
825
826
		return 135000;
	else
		return 112000;
}

827
828
829
830
831
832
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;
833
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
834
835
836
837
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
838
	case DCB_OUTPUT_LVDS:
839
840
841
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
842
843
844
845
846
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
847
	case DCB_OUTPUT_TMDS:
848
849
850
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
851
		break;
852
	case DCB_OUTPUT_ANALOG:
853
854
855
856
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
857
	case DCB_OUTPUT_TV:
858
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
859
	case DCB_OUTPUT_DP:
860
861
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
862
		clock = clock * (connector->display_info.bpc * 3) / 10;
863
		break;
864
865
866
	default:
		BUG_ON(1);
		return MODE_BAD;
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
902
903
904
905
906
907
	}

	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
};

908
909
910
911
912
913
914
915
916
917
918
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
};
919

920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
static void
nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
{
	struct nouveau_encoder *nv_encoder = NULL;

	if (connector->encoder)
		nv_encoder = nouveau_encoder(connector->encoder);
	if (nv_encoder && nv_encoder->dcb &&
	    nv_encoder->dcb->type == DCB_OUTPUT_DP) {
		if (mode == DRM_MODE_DPMS_ON) {
			u8 data = DP_SET_POWER_D0;
			nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
			usleep_range(1000, 2000);
		} else {
			u8 data = DP_SET_POWER_D3;
			nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
		}
	}

	drm_helper_connector_dpms(connector, mode);
}

static const struct drm_connector_funcs
nouveau_connector_funcs_dp = {
	.dpms = nouveau_connector_dp_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
};

954
static int
955
nouveau_connector_hotplug(struct nvif_notify *notify)
956
957
{
	struct nouveau_connector *nv_connector =
958
		container_of(notify, typeof(*nv_connector), hpd);
959
	struct drm_connector *connector = &nv_connector->base;
960
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
961
	const struct nvif_notify_conn_rep_v0 *rep = notify->data;
962
	const char *name = connector->name;
963

964
	if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
965
	} else {
966
		bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
967

968
		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
969

970
971
972
973
974
975
976
		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(connector->dev);
	}

977
	return NVIF_NOTIFY_KEEP;
978
979
}

980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
{
	struct nouveau_connector *nv_connector =
		container_of(aux, typeof(*nv_connector), aux);
	struct nouveau_encoder *nv_encoder;
	struct nouveau_i2c_port *port;
	int ret;

	nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
	if (!nv_encoder || !(port = nv_encoder->i2c))
		return -ENODEV;
	if (WARN_ON(msg->size > 16))
		return -E2BIG;
	if (msg->size == 0)
		return msg->size;

	ret = nouveau_i2c(port)->acquire(port, 0);
	if (ret)
		return ret;

	ret = port->func->aux(port, false, msg->request, msg->address,
			      msg->buffer, msg->size);
	nouveau_i2c(port)->release(port);
	if (ret >= 0) {
		msg->reply = ret;
		return msg->size;
	}

	return ret;
}

1012
1013
1014
1015
1016
1017
1018
1019
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;
1020
1021
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
1022
1023
1024
1025
	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;
1026
1027
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
1028
1029
1030
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
1031
1032
	case DCB_CONNECTOR_HDMI_1   :
	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1033
1034
1035
1036
1037
1038
1039
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

1040
1041
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
1042
{
1043
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1044
1045
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_display *disp = nouveau_display(dev);
1046
1047
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
1048
	int type, ret = 0;
1049
	bool dummy;
1050

1051
1052
1053
1054
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
1055
1056
	}

1057
1058
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
1059
		return ERR_PTR(-ENOMEM);
1060

1061
	connector = &nv_connector->base;
1062
1063
1064
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
1065
	nv_connector->dcb = olddcb_conn(dev, index);
1066
1067
	if (nv_connector->dcb) {
		u32 entry = ROM16(nv_connector->dcb[0]);
1068
		if (olddcb_conntab(dev)[3] >= 4)
1069
1070
1071
1072
1073
			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;

		nv_connector->type = nv_connector->dcb[0];
		if (drm_conntype_from_dcb(nv_connector->type) ==
					  DRM_MODE_CONNECTOR_Unknown) {
1074
			NV_WARN(drm, "unknown connector type %02x\n",
1075
1076
1077
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1078

1079
1080
1081
1082
1083
		/* 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;
		}
1084

1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
		/* 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;
	}

	/* no vbios data, or an unknown dcb connector type - attempt to
	 * figure out something suitable ourselves
	 */
	if (nv_connector->type == DCB_CONNECTOR_NONE) {
1098
1099
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1100
1101
1102
1103
1104
1105
1106
		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);
		}
1107

1108
1109
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1110
1111
1112
1113
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1114
1115
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1116
1117
1118
1119
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1120
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1121
1122
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1123
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1124
1125
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1126
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1127
1128
1129
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1130

1131
1132
	switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
	case DRM_MODE_CONNECTOR_LVDS:
1133
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1134
		if (ret) {
1135
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1136
1137
			kfree(nv_connector);
			return ERR_PTR(ret);
1138
		}
1139
1140

		funcs = &nouveau_connector_funcs_lvds;
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
		break;
	case DRM_MODE_CONNECTOR_DisplayPort:
	case DRM_MODE_CONNECTOR_eDP:
		nv_connector->aux.dev = dev->dev;
		nv_connector->aux.transfer = nouveau_connector_aux_xfer;
		ret = drm_dp_aux_register(&nv_connector->aux);
		if (ret) {
			NV_ERROR(drm, "failed to register aux channel\n");
			kfree(nv_connector);
			return ERR_PTR(ret);
		}

1153
		funcs = &nouveau_connector_funcs_dp;
1154
1155
1156
1157
		break;
	default:
		funcs = &nouveau_connector_funcs;
		break;
1158
1159
	}

1160
1161
1162
1163
1164
1165
1166
	/* 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);

1167
	/* Init DVI-I specific properties */
1168
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1169
		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1170

1171
	/* Add overscan compensation options to digital outputs */
1172
	if (disp->underscan_property &&
1173
1174
1175
1176
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1177
		drm_object_attach_property(&connector->base,
1178
1179
					      disp->underscan_property,
					      UNDERSCAN_OFF);
1180
		drm_object_attach_property(&connector->base,
1181
1182
					      disp->underscan_hborder_property,
					      0);
1183
		drm_object_attach_property(&connector->base,
1184
1185
1186
1187
					      disp->underscan_vborder_property,
					      0);
	}

1188
1189
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
1190
		drm_object_attach_property(&connector->base,
1191
1192
1193
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
1194
		drm_object_attach_property(&connector->base,
1195
1196
1197
					      disp->color_vibrance_property,
					      150);

1198
	switch (nv_connector->type) {
1199
	case DCB_CONNECTOR_VGA:
1200
		if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
1201
			drm_object_attach_property(&connector->base,
1202
1203
1204
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
1205
1206
1207
1208
1209
1210
1211
1212
1213
		/* 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;

1214
		drm_object_attach_property(&connector->base,
1215
1216
				dev->mode_config.scaling_mode_property,