nouveau_connector.c 41.3 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 <linux/vga_switcheroo.h>
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#include <drm/drmP.h>
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#include <drm/drm_atomic_helper.h>
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#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_drv.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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struct drm_display_mode *
nouveau_conn_native_mode(struct drm_connector *connector)
{
	const struct drm_connector_helper_funcs *helper = connector->helper_private;
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
	struct drm_device *dev = connector->dev;
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

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

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

		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
		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;
	}

	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
		      high_w, high_h, high_v);
	return largest ? drm_mode_duplicate(dev, largest) : NULL;
}

int
nouveau_conn_atomic_get_property(struct drm_connector *connector,
				 const struct drm_connector_state *state,
				 struct drm_property *property, u64 *val)
{
	struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
	struct nouveau_display *disp = nouveau_display(connector->dev);
	struct drm_device *dev = connector->dev;

	if (property == dev->mode_config.scaling_mode_property)
		*val = asyc->scaler.mode;
	else if (property == disp->underscan_property)
		*val = asyc->scaler.underscan.mode;
	else if (property == disp->underscan_hborder_property)
		*val = asyc->scaler.underscan.hborder;
	else if (property == disp->underscan_vborder_property)
		*val = asyc->scaler.underscan.vborder;
	else if (property == disp->dithering_mode)
		*val = asyc->dither.mode;
	else if (property == disp->dithering_depth)
		*val = asyc->dither.depth;
	else if (property == disp->vibrant_hue_property)
		*val = asyc->procamp.vibrant_hue;
	else if (property == disp->color_vibrance_property)
		*val = asyc->procamp.color_vibrance;
	else
		return -EINVAL;

	return 0;
}

int
nouveau_conn_atomic_set_property(struct drm_connector *connector,
				 struct drm_connector_state *state,
				 struct drm_property *property, u64 val)
{
	struct drm_device *dev = connector->dev;
	struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
	struct nouveau_display *disp = nouveau_display(dev);

	if (property == dev->mode_config.scaling_mode_property) {
		switch (val) {
		case DRM_MODE_SCALE_NONE:
			/* 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 (connector->connector_type) {
			case DRM_MODE_CONNECTOR_LVDS:
			case DRM_MODE_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;
			}
		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			return -EINVAL;
		}

		if (asyc->scaler.mode != val) {
			asyc->scaler.mode = val;
			asyc->set.scaler = true;
		}
	} else
	if (property == disp->underscan_property) {
		if (asyc->scaler.underscan.mode != val) {
			asyc->scaler.underscan.mode = val;
			asyc->set.scaler = true;
		}
	} else
	if (property == disp->underscan_hborder_property) {
		if (asyc->scaler.underscan.hborder != val) {
			asyc->scaler.underscan.hborder = val;
			asyc->set.scaler = true;
		}
	} else
	if (property == disp->underscan_vborder_property) {
		if (asyc->scaler.underscan.vborder != val) {
			asyc->scaler.underscan.vborder = val;
			asyc->set.scaler = true;
		}
	} else
	if (property == disp->dithering_mode) {
		if (asyc->dither.mode != val) {
			asyc->dither.mode = val;
			asyc->set.dither = true;
		}
	} else
	if (property == disp->dithering_depth) {
		if (asyc->dither.mode != val) {
			asyc->dither.depth = val;
			asyc->set.dither = true;
		}
	} else
	if (property == disp->vibrant_hue_property) {
		if (asyc->procamp.vibrant_hue != val) {
			asyc->procamp.vibrant_hue = val;
			asyc->set.procamp = true;
		}
	} else
	if (property == disp->color_vibrance_property) {
		if (asyc->procamp.color_vibrance != val) {
			asyc->procamp.color_vibrance = val;
			asyc->set.procamp = true;
		}
	} else {
		return -EINVAL;
	}

	return 0;
}

void
nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
				  struct drm_connector_state *state)
{
	struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
	__drm_atomic_helper_connector_destroy_state(&asyc->state);
	kfree(asyc);
}

struct drm_connector_state *
nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
{
	struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
	struct nouveau_conn_atom *asyc;
	if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
		return NULL;
	__drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
	asyc->dither = armc->dither;
	asyc->scaler = armc->scaler;
	asyc->procamp = armc->procamp;
	asyc->set.mask = 0;
	return &asyc->state;
}

void
nouveau_conn_reset(struct drm_connector *connector)
{
	struct nouveau_conn_atom *asyc;

	if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
		return;

	if (connector->state)
		__drm_atomic_helper_connector_destroy_state(connector->state);
	__drm_atomic_helper_connector_reset(connector, &asyc->state);
	asyc->dither.mode = DITHERING_MODE_AUTO;
	asyc->dither.depth = DITHERING_DEPTH_AUTO;
	asyc->scaler.mode = DRM_MODE_SCALE_NONE;
	asyc->scaler.underscan.mode = UNDERSCAN_OFF;
	asyc->procamp.color_vibrance = 150;
	asyc->procamp.vibrant_hue = 90;

	if (nouveau_display(connector->dev)->disp.oclass < NV50_DISP) {
		switch (connector->connector_type) {
		case DRM_MODE_CONNECTOR_LVDS:
			/* See note in nouveau_conn_atomic_set_property(). */
			asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
			break;
		default:
			break;
		}
	}
}

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void
nouveau_conn_attach_properties(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
	struct nouveau_display *disp = nouveau_display(dev);

	/* Init DVI-I specific properties. */
	if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
		drm_object_attach_property(&connector->base, dev->mode_config.
					   dvi_i_subconnector_property, 0);

	/* Add overscan compensation options to digital outputs. */
	if (disp->underscan_property &&
	    (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
	     connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
	     connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
	     connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
		drm_object_attach_property(&connector->base,
					   disp->underscan_property,
					   UNDERSCAN_OFF);
		drm_object_attach_property(&connector->base,
					   disp->underscan_hborder_property, 0);
		drm_object_attach_property(&connector->base,
					   disp->underscan_vborder_property, 0);
	}

	/* Add hue and saturation options. */
	if (disp->vibrant_hue_property)
		drm_object_attach_property(&connector->base,
					   disp->vibrant_hue_property,
					   armc->procamp.vibrant_hue);
	if (disp->color_vibrance_property)
		drm_object_attach_property(&connector->base,
					   disp->color_vibrance_property,
					   armc->procamp.color_vibrance);

	/* Scaling mode property. */
	switch (connector->connector_type) {
	case DRM_MODE_CONNECTOR_TV:
		break;
	case DRM_MODE_CONNECTOR_VGA:
		if (disp->disp.oclass < NV50_DISP)
			break; /* Can only scale on DFPs. */
		/* Fall-through. */
	default:
		drm_object_attach_property(&connector->base, dev->mode_config.
					   scaling_mode_property,
					   armc->scaler.mode);
		break;
	}

	/* Dithering properties. */
	switch (connector->connector_type) {
	case DRM_MODE_CONNECTOR_TV:
	case DRM_MODE_CONNECTOR_VGA:
		break;
	default:
		if (disp->dithering_mode) {
			drm_object_attach_property(&connector->base,
						   disp->dithering_mode,
						   armc->dither.mode);
		}
		if (disp->dithering_depth) {
			drm_object_attach_property(&connector->base,
						   disp->dithering_depth,
						   armc->dither.depth);
		}
		break;
	}
}

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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
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		if ((vga_switcheroo_handler_flags() &
		     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
		    nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
		    nv_encoder->i2c) {
			int ret;
			vga_switcheroo_lock_ddc(dev->pdev);
			ret = nvkm_probe_i2c(nv_encoder->i2c, 0x50);
			vga_switcheroo_unlock_ddc(dev->pdev);
			if (ret)
				break;
		} else
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		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
551
nouveau_connector_detect(struct drm_connector *connector, bool force)
552
553
{
	struct drm_device *dev = connector->dev;
554
	struct nouveau_drm *drm = nouveau_drm(dev);
555
556
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
557
	struct nouveau_encoder *nv_partner;
558
	struct i2c_adapter *i2c;
559
	int type;
560
561
	int ret;
	enum drm_connector_status conn_status = connector_status_disconnected;
562

563
564
565
566
567
568
	/* 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;
	}
569

570
	ret = pm_runtime_get_sync(connector->dev->dev);
571
	if (ret < 0 && ret != -EACCES)
572
573
		return conn_status;

574
575
	nv_encoder = nouveau_connector_ddc_detect(connector);
	if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
576
577
578
579
580
581
582
583
		if ((vga_switcheroo_handler_flags() &
		     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
		    nv_connector->type == DCB_CONNECTOR_LVDS)
			nv_connector->edid = drm_get_edid_switcheroo(connector,
								     i2c);
		else
			nv_connector->edid = drm_get_edid(connector, i2c);

584
585
586
		drm_mode_connector_update_edid_property(connector,
							nv_connector->edid);
		if (!nv_connector->edid) {
587
			NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
588
				 connector->name);
589
			goto detect_analog;
590
591
592
593
594
595
596
		}

		/* 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.
		 */
597
		nv_partner = NULL;
598
599
600
601
602
603
604
605
606
		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))) {
607
			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
608
				type = DCB_OUTPUT_TMDS;
609
			else
610
				type = DCB_OUTPUT_ANALOG;
611

612
			nv_encoder = find_encoder(connector, type);
613
614
615
		}

		nouveau_connector_set_encoder(connector, nv_encoder);
616
617
		conn_status = connector_status_connected;
		goto out;
618
619
	}

620
621
622
	nv_encoder = nouveau_connector_of_detect(connector);
	if (nv_encoder) {
		nouveau_connector_set_encoder(connector, nv_encoder);
623
624
		conn_status = connector_status_connected;
		goto out;
625
626
	}

627
detect_analog:
628
	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
629
	if (!nv_encoder && !nouveau_tv_disable)
630
		nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
631
	if (nv_encoder && force) {
632
		struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
633
		const struct drm_encoder_helper_funcs *helper =
634
635
636
637
638
						encoder->helper_private;

		if (helper->detect(encoder, connector) ==
						connector_status_connected) {
			nouveau_connector_set_encoder(connector, nv_encoder);
639
640
			conn_status = connector_status_connected;
			goto out;
641
642
643
644
		}

	}

645
646
647
648
649
650
 out:

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

	return conn_status;
651
652
}

653
static enum drm_connector_status
654
nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
655
656
{
	struct drm_device *dev = connector->dev;
657
	struct nouveau_drm *drm = nouveau_drm(dev);
658
659
660
661
662
663
664
665
666
667
668
	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;
	}

669
	nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
670
671
672
	if (!nv_encoder)
		return connector_status_disconnected;

673
	/* Try retrieving EDID via DDC */
674
	if (!drm->vbios.fp_no_ddc) {
675
		status = nouveau_connector_detect(connector, force);
676
677
678
679
		if (status == connector_status_connected)
			goto out;
	}

680
681
682
683
684
685
686
687
688
689
	/* 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) {
690
		if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
691
692
693
694
695
			status = connector_status_connected;
			goto out;
		}
	}

696
697
698
699
	/* 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.
	 */
700
	if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
701
702
703
704
705
706
707
708
	    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.
	 */
709
	if (!drm->vbios.fp_no_ddc) {
710
711
712
		struct edid *edid =
			(struct edid *)nouveau_bios_embedded_edid(dev);
		if (edid) {
713
714
715
716
			nv_connector->edid =
					kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			if (nv_connector->edid)
				status = connector_status_connected;
717
718
719
720
721
722
723
724
725
726
727
728
		}
	}

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);
729
	nouveau_connector_set_encoder(connector, nv_encoder);
730
731
732
	return status;
}

733
734
735
static void
nouveau_connector_force(struct drm_connector *connector)
{
736
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
737
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
738
739
740
	struct nouveau_encoder *nv_encoder;
	int type;

741
	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
742
		if (connector->force == DRM_FORCE_ON_DIGITAL)
743
			type = DCB_OUTPUT_TMDS;
744
		else
745
			type = DCB_OUTPUT_ANALOG;
746
	} else
747
		type = DCB_OUTPUT_ANY;
748

749
	nv_encoder = find_encoder(connector, type);
750
	if (!nv_encoder) {
751
		NV_ERROR(drm, "can't find encoder to force %s on!\n",
752
			 connector->name);
753
754
755
756
757
758
759
760
761
762
763
		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)
{
764
	struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
765
766
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
767
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
768
	struct nouveau_crtc *nv_crtc = NULL;
769
770
	int ret;

771
772
773
774
775
776
777
778
	ret = connector->funcs->atomic_set_property(&nv_connector->base,
						    &asyc->state,
						    property, value);
	if (ret) {
		if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
			return get_slave_funcs(encoder)->set_property(
				encoder, connector, property, value);
		return ret;
779
780
	}

781
782
783
784
785
786
	nv_connector->scaling_mode = asyc->scaler.mode;
	nv_connector->underscan = asyc->scaler.underscan.mode;
	nv_connector->underscan_hborder = asyc->scaler.underscan.hborder;
	nv_connector->underscan_vborder = asyc->scaler.underscan.vborder;
	nv_connector->dithering_mode = asyc->dither.mode;
	nv_connector->dithering_depth = asyc->dither.depth;
787

788
789
790
	if (connector->encoder && connector->encoder->crtc)
		nv_crtc = nouveau_crtc(connector->encoder->crtc);
	if (!nv_crtc)
791
792
		return 0;

793
794
	nv_crtc->vibrant_hue = asyc->procamp.vibrant_hue - 90;
	nv_crtc->color_vibrance = asyc->procamp.color_vibrance - 100;
795

796
797
798
799
	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;
800

801
	return 0;
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
}

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 &&
841
842
843
		    mode->vdisplay <= native->vdisplay &&
		    (mode->hdisplay != native->hdisplay ||
		     mode->vdisplay != native->vdisplay)) {
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
			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;
}

860
861
862
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
863
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
864
865
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
866
	struct nvbios *bios = &drm->vbios;
867
868
869
870
871
872
873
	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;

874
875
876
877
878
879
880
	/* 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 */
881
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
882
		connector->display_info.bpc = 8;
883
		return;
884
885
886
	}

	connector->display_info.bpc = 6;
887
888
889
890
891
892
893
894
895
896
897
898

	/* 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 &&
899
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
900
901
902
903
904
905
906
907
908
		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;
}

909
910
911
912
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
913
	struct nouveau_drm *drm = nouveau_drm(dev);
914
915
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
916
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
917
918
	int ret = 0;

919
	/* destroy the native mode, the attached monitor could have changed.
920
	 */
921
	if (nv_connector->native_mode) {
922
923
924
925
926
927
		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);
928
	else
929
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
930
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
931
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
932
933
934
935
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
936
	}
937

938
939
940
941
942
943
	/* 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);

944
945
946
947
948
	/* 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)
949
		nv_connector->native_mode = nouveau_conn_native_mode(connector);
950
951
952
953
954
955
956
957
	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;
	}

958
959
960
	/* 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...
961
	 */
962
963
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
964

965
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
966
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
967

968
969
970
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
971
972
973
974
975
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

976
static unsigned
977
get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
978
979
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
980
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
981
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
982

983
984
985
986
987
988
989
990
991
992
993
	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;
	}
994
	if (dcb->location != DCB_LOC_ON_CHIP ||
995
	    drm->device.info.chipset >= 0x46)
996
		return 165000;
997
	else if (drm->device.info.chipset >= 0x40)
998
		return 155000;
999
	else if (drm->device.info.chipset >= 0x18)
1000
1001
1002
1003
1004
		return 135000;
	else
		return 112000;
}

1005
1006
1007
1008
1009
1010
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;
1011
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1012
1013
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;
1014
	bool hdmi;
1015
1016

	switch (nv_encoder->dcb->type) {
1017
	case DCB_OUTPUT_LVDS:
1018
1019
1020
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
1021
1022
1023
1024
1025
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
1026
	case DCB_OUTPUT_TMDS:
1027
1028
1029
1030
		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)
1031
			max_clock *= 2;
1032
		break;
1033
	case DCB_OUTPUT_ANALOG:
1034
1035
1036
1037
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
1038
	case DCB_OUTPUT_TV:
1039
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1040
	case DCB_OUTPUT_DP:
1041
1042
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
1043
		clock = clock * (connector->display_info.bpc * 3) / 10;
1044
		break;
1045
1046
1047
	default:
		BUG_ON(1);
		return MODE_BAD;
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
	}

	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,
};

1077
1078
1079
1080
1081
1082
1083
1084
static int
nouveau_connector_dpms(struct drm_connector *connector, int mode)
{
	if (connector->dev->mode_config.funcs->atomic_commit)
		return drm_atomic_helper_connector_dpms(connector, mode);
	return drm_helper_connector_dpms(connector, mode);
}

1085
1086
static const struct drm_connector_funcs
nouveau_connector_funcs = {
1087
	.dpms = nouveau_connector_dpms,
1088
	.reset = nouveau_conn_reset,
1089
	.detect = nouveau_connector_detect,
1090
	.force = nouveau_connector_force,
1091
1092
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
1093
1094
1095
1096
1097
	.destroy = nouveau_connector_destroy,
	.atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
	.atomic_destroy_state = nouveau_conn_atomic_destroy_state,
	.atomic_set_property = nouveau_conn_atomic_set_property,
	.atomic_get_property = nouveau_conn_atomic_get_property,
1098
1099
};

1100
1101
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
1102
	.dpms = nouveau_connector_dpms,
1103
	.reset = nouveau_conn_reset,
1104
	.detect = nouveau_connector_detect_lvds,
1105
	.force = nouveau_connector_force,
1106
1107
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
1108
1109
1110
1111
1112
	.destroy = nouveau_connector_destroy,
	.atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
	.atomic_destroy_state = nouveau_conn_atomic_destroy_state,
	.atomic_set_property = nouveau_conn_atomic_set_property,
	.atomic_get_property = nouveau_conn_atomic_get_property,
1113
};
1114

1115
static int
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
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;
1126
			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
1127
1128
1129
			usleep_range(1000, 2000);
		} else {
			u8 data = DP_SET_POWER_D3;
1130
			nvkm_wraux(nv_encoder->aux, DP_SET_POWER, &data, 1);
1131
1132
1133
		}
	}

1134
	return drm_helper_connector_dpms(connector, mode);
1135
1136
1137
1138
1139
}

static const struct drm_connector_funcs
nouveau_connector_funcs_dp = {
	.dpms = nouveau_connector_dp_dpms,
1140
	.reset = nouveau_conn_reset,
1141
	.detect = nouveau_connector_detect,
1142
	.force = nouveau_connector_force,
1143
1144
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
1145
1146
1147
1148
1149
	.destroy = nouveau_connector_destroy,
	.atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
	.atomic_destroy_state = nouveau_conn_atomic_destroy_state,
	.atomic_set_property = nouveau_conn_atomic_set_property,
	.atomic_get_property = nouveau_conn_atomic_get_property,
1150
1151
};

1152
static int
1153
nouveau_connector_hotplug(struct nvif_notify *notify)
1154
1155
{
	struct nouveau_connector *nv_connector =
1156
		container_of(notify, typeof(*nv_connector), hpd);
1157
	struct drm_connector *connector = &nv_connector->base;
1158
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
1159
	const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1160
	const char *name = connector->name;
1161

1162
	if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1163
	} else {
1164
		bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1165

1166
1167
1168
1169
		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
		drm_helper_hpd_irq_event(connector->dev);
	}

1170
	return NVIF_NOTIFY_KEEP;
1171
1172
}

1173
static ssize_t
1174
nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1175
1176
{
	struct nouveau_connector *nv_connector =
1177
		container_of(obj, typeof(*nv_connector), aux);
1178
	struct nouveau_encoder *nv_encoder;
1179
	struct nvkm_i2c_aux *aux;
1180
1181
1182
	int ret;

	nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1183
	if (!nv_encoder || !(aux = nv_encoder->aux))
1184
1185
1186
1187
1188
1189
		return -ENODEV;
	if (WARN_ON(msg->size > 16))
		return -E2BIG;
	if (msg->size == 0)
		return msg->size;

1190
	ret = nvkm_i2c_aux_acquire(aux);
1191
1192
1193
	if (ret)
		return ret;

1194
1195
1196
	ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
				msg->buffer, msg->size);
	nvkm_i2c_aux_release(aux);
1197
1198
1199
1200
1201
1202
1203
1204
	if (ret >= 0) {
		msg->reply = ret;
		return msg->size;
	}

	return ret;
}

1205
1206
1207
1208
1209
1210
1211
1212
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;
1213
1214
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
1215
1216
1217
1218
	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;
1219
1220
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
1221
1222
1223
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
1224
1225
	case DCB_CONNECTOR_HDMI_1   :
	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1226
1227
1228
1229
1230
1231
1232
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

1233
1234
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
1235
{
1236
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1237
1238
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_display *disp = nouveau_display(dev);
1239
1240
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
1241
	int type, ret = 0;
1242
	bool dummy;
1243

1244
1245
1246
1247
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
1248
1249
	}

1250
1251
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
1252
		return ERR_PTR(-ENOMEM);
1253

1254
	connector = &nv_connector->base;
1255
1256
1257
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
1258
	nv_connector->dcb = olddcb_conn(dev, index);
1259
1260
	if (nv_connector->dcb) {
		u32 entry = ROM16(nv_connector->dcb[0]);
1261
		if (olddcb_conntab(dev)[3] >= 4)
1262
1263
1264
1265
1266
			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) {
1267
			NV_WARN(drm, "unknown connector type %02x\n",
1268
1269
1270
				nv_connector->type);