nouveau_connector.c 36.7 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/class.h>
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#include <nvif/cl0046.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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MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
int nouveau_hdmimhz = 0;
module_param_named(hdmimhz, nouveau_hdmimhz, 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 nvkm_gpio *gpio = nvxx_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) {
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		panel = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
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		if (panel == 0) {
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			nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
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			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) {
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			if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
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				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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		nvkm_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 i2c_adapter *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);
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		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);
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		const struct drm_encoder_helper_funcs *helper =
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						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);
	}
569

570
571
	if (property == disp->dithering_depth) {
		nv_connector->dithering_depth = value;
572
573
574
		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

575
		return nv_crtc->set_dither(nv_crtc, true);
576
577
	}

578
579
580
581
582
583
584
585
586
587
588
589
590
	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);
		}
	}

591
	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
592
593
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
594
595
596
597
598

	return -EINVAL;
}

static struct drm_display_mode *
599
nouveau_connector_native_mode(struct drm_connector *connector)
600
{
601
	const struct drm_connector_helper_funcs *helper = connector->helper_private;
602
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
603
604
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
605
606
607
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

608
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
609
		mode->vrefresh = drm_mode_vrefresh(mode);
610
611
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
612
613
614
			continue;

		/* Use preferred mode if there is one.. */
615
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
616
			NV_DEBUG(drm, "native mode from preferred\n");
617
618
619
			return drm_mode_duplicate(dev, mode);
		}

620
621
622
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
		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;
	}

639
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
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
		      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 &&
681
682
683
		    mode->vdisplay <= native->vdisplay &&
		    (mode->hdisplay != native->hdisplay ||
		     mode->vdisplay != native->vdisplay)) {
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
			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;
}

700
701
702
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
703
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
704
705
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
706
	struct nvbios *bios = &drm->vbios;
707
708
709
710
711
712
713
	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;

714
715
716
717
718
719
720
	/* 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 */
721
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
722
		connector->display_info.bpc = 8;
723
		return;
724
725
726
	}

	connector->display_info.bpc = 6;
727
728
729
730
731
732
733
734
735
736
737
738

	/* 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 &&
739
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
740
741
742
743
744
745
746
747
748
		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;
}

749
750
751
752
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
753
	struct nouveau_drm *drm = nouveau_drm(dev);
754
755
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
756
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
757
758
	int ret = 0;

759
	/* destroy the native mode, the attached monitor could have changed.
760
	 */
761
	if (nv_connector->native_mode) {
762
763
764
765
766
767
		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);
768
	else
769
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
770
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
771
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
772
773
774
775
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
776
	}
777

778
779
780
781
782
783
	/* 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);

784
785
786
787
788
789
	/* 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 =
790
			nouveau_connector_native_mode(connector);
791
792
793
794
795
796
797
798
	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;
	}

799
800
801
	/* 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...
802
	 */
803
804
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
805

806
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
807
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
808

809
810
811
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
812
813
814
815
816
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

817
static unsigned
818
get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
819
820
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
821
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
822
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
823

824
825
826
827
828
829
830
831
832
833
834
	if (hdmi) {
		if (nouveau_hdmimhz > 0)
			return nouveau_hdmimhz * 1000;
		/* Note: these limits are conservative, some Fermi's
		 * can do 297 MHz. Unclear how this can be determined.
		 */
		if (drm->device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
			return 297000;
		if (drm->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
			return 225000;
	}
835
	if (dcb->location != DCB_LOC_ON_CHIP ||
836
	    drm->device.info.chipset >= 0x46)
837
		return 165000;
838
	else if (drm->device.info.chipset >= 0x40)
839
		return 155000;
840
	else if (drm->device.info.chipset >= 0x18)
841
842
843
844
845
		return 135000;
	else
		return 112000;
}

846
847
848
849
850
851
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;
852
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
853
854
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;
855
	bool hdmi;
856
857

	switch (nv_encoder->dcb->type) {
858
	case DCB_OUTPUT_LVDS:
859
860
861
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
862
863
864
865
866
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
867
	case DCB_OUTPUT_TMDS:
868
869
870
871
		hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
		max_clock = get_tmds_link_bandwidth(connector, hdmi);
		if (!hdmi && nouveau_duallink &&
		    nv_encoder->dcb->duallink_possible)
872
			max_clock *= 2;
873
		break;
874
	case DCB_OUTPUT_ANALOG:
875
876
877
878
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
879
	case DCB_OUTPUT_TV:
880
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
881
	case DCB_OUTPUT_DP:
882
883
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
884
		clock = clock * (connector->display_info.bpc * 3) / 10;
885
		break;
886
887
888
	default:
		BUG_ON(1);
		return MODE_BAD;
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
	}

	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,
	.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
};

928
929
930
931
932
933
934
935
936
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
	.dpms = drm_helper_connector_dpms,
	.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
};
937

938
static int
939
940
941
942
943
944
945
946
947
948
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;
949
			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
950
951
952
			usleep_range(1000, 2000);
		} else {
			u8 data = DP_SET_POWER_D3;
953
			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
954
955
956
		}
	}

957
	return drm_helper_connector_dpms(connector, mode);
958
959
960
961
962
963
964
965
966
967
968
969
}

static const struct drm_connector_funcs
nouveau_connector_funcs_dp = {
	.dpms = nouveau_connector_dp_dpms,
	.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
};

970
static int
971
nouveau_connector_hotplug(struct nvif_notify *notify)
972
973
{
	struct nouveau_connector *nv_connector =
974
		container_of(notify, typeof(*nv_connector), hpd);
975
	struct drm_connector *connector = &nv_connector->base;
976
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
977
	const struct nvif_notify_conn_rep_v0 *rep = notify->data;
978
	const char *name = connector->name;
979

980
	if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
981
	} else {
982
		bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
983

984
		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
985

986
		mutex_lock(&drm->dev->mode_config.mutex);
987
988
989
990
		if (plugged)
			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
		else
			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
991
992
		mutex_unlock(&drm->dev->mode_config.mutex);

993
994
995
		drm_helper_hpd_irq_event(connector->dev);
	}

996
	return NVIF_NOTIFY_KEEP;
997
998
}

999
static ssize_t
1000
nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1001
1002
{
	struct nouveau_connector *nv_connector =
1003
		container_of(obj, typeof(*nv_connector), aux);
1004
	struct nouveau_encoder *nv_encoder;
1005
	struct nvkm_i2c_aux *aux;
1006
1007
1008
	int ret;

	nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1009
	if (!nv_encoder || !(aux = nv_encoder->aux))
1010
1011
1012
1013
1014
1015
		return -ENODEV;
	if (WARN_ON(msg->size > 16))
		return -E2BIG;
	if (msg->size == 0)
		return msg->size;

1016
	ret = nvkm_i2c_aux_acquire(aux);
1017
1018
1019
	if (ret)
		return ret;

1020
1021
1022
	ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
				msg->buffer, msg->size);
	nvkm_i2c_aux_release(aux);
1023
1024
1025
1026
1027
1028
1029
1030
	if (ret >= 0) {
		msg->reply = ret;
		return msg->size;
	}

	return ret;
}

1031
1032
1033
1034
1035
1036
1037
1038
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;
1039
1040
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
1041
1042
1043
1044
	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;
1045
1046
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
1047
1048
1049
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
1050
1051
	case DCB_CONNECTOR_HDMI_1   :
	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1052
1053
1054
1055
1056
1057
1058
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

1059
1060
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
1061
{
1062
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1063
1064
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_display *disp = nouveau_display(dev);
1065
1066
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
1067
	int type, ret = 0;
1068
	bool dummy;
1069

1070
1071
1072
1073
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
1074
1075
	}

1076
1077
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
1078
		return ERR_PTR(-ENOMEM);
1079

1080
	connector = &nv_connector->base;
1081
1082
1083
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
1084
	nv_connector->dcb = olddcb_conn(dev, index);
1085
1086
	if (nv_connector->dcb) {
		u32 entry = ROM16(nv_connector->dcb[0]);
1087
		if (olddcb_conntab(dev)[3] >= 4)
1088
1089
1090
1091
1092
			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) {
1093
			NV_WARN(drm, "unknown connector type %02x\n",
1094
1095
1096
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1097

1098
1099
1100
1101
1102
		/* 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;
		}
1103

1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
		/* 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) {
1117
1118
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1119
1120
1121
1122
1123
1124
1125
		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);
		}
1126

1127
1128
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1129
1130
1131
1132
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1133
1134
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1135
1136
1137
1138
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1139
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1140
1141
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1142
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1143
1144
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1145
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1146
1147
1148
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1149

1150
1151
	switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
	case DRM_MODE_CONNECTOR_LVDS:
1152
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1153
		if (ret) {
1154
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1155
1156
			kfree(nv_connector);
			return ERR_PTR(ret);
1157
		}