WebSVN – Kolibri OS – Diff – /drivers/video/drm/drm_crtc_helper.c

  *	Eric Anholt
  *      Dave Airlie
  *      Jesse Barnes
  */
 #include
 #include
 #include
 	list_splice(&panel_list, &dev->mode_config.connector_list);
+}
-EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head);
-static bool drm_kms_helper_poll = true;
-module_param_named(poll, drm_kms_helper_poll, bool, 0600);
-static void drm_mode_validate_flag(struct drm_connector *connector,
-				   int flags)
-{
-	struct drm_display_mode *mode;
-	if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE |
-		      DRM_MODE_FLAG_3D_MASK))
-		return;
-	list_for_each_entry(mode, &connector->modes, head) {
-		if ((mode->flags & DRM_MODE_FLAG_INTERLACE) &&
-				!(flags & DRM_MODE_FLAG_INTERLACE))
-			mode->status = MODE_NO_INTERLACE;
-		if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) &&
-				!(flags & DRM_MODE_FLAG_DBLSCAN))
-			mode->status = MODE_NO_DBLESCAN;
-		if ((mode->flags & DRM_MODE_FLAG_3D_MASK) &&
-				!(flags & DRM_MODE_FLAG_3D_MASK))
-			mode->status = MODE_NO_STEREO;
-	}
-	return;
-}
-/**
- * drm_helper_probe_single_connector_modes - get complete set of display modes
- * @connector: connector to probe
- * @maxX: max width for modes
- * @maxY: max height for modes
- *
- * LOCKING:
- * Caller must hold mode config lock.
- *
- * Based on the helper callbacks implemented by @connector try to detect all
- * valid modes.  Modes will first be added to the connector's probed_modes list,
- * then culled (based on validity and the @maxX, @maxY parameters) and put into
- * the normal modes list.
- *
- * Intended to be use as a generic implementation of the ->fill_modes()
- * @connector vfunc for drivers that use the crtc helpers for output mode
- * filtering and detection.
- *
- * RETURNS:
- * Number of modes found on @connector.
- */
-int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
-					    uint32_t maxX, uint32_t maxY)
-{
-	struct drm_device *dev = connector->dev;
-	struct drm_display_mode *mode;
-	struct drm_connector_helper_funcs *connector_funcs =
-		connector->helper_private;
-	int count = 0;
-	int mode_flags = 0;
-	bool verbose_prune = true;
-	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,
-			drm_get_connector_name(connector));
-	/* set all modes to the unverified state */
-	list_for_each_entry(mode, &connector->modes, head)
-		mode->status = MODE_UNVERIFIED;
-	if (connector->force) {
-		if (connector->force == DRM_FORCE_ON)
-			connector->status = connector_status_connected;
-		else
-			connector->status = connector_status_disconnected;
-		if (connector->funcs->force)
-			connector->funcs->force(connector);
-	} else {
-		connector->status = connector->funcs->detect(connector, true);
-	}
-	/* Re-enable polling in case the global poll config changed. */
-	if (drm_kms_helper_poll != dev->mode_config.poll_running)
-		drm_kms_helper_poll_enable(dev);
-	dev->mode_config.poll_running = drm_kms_helper_poll;
-	if (connector->status == connector_status_disconnected) {
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
-			connector->base.id, drm_get_connector_name(connector));
-		drm_mode_connector_update_edid_property(connector, NULL);
-		verbose_prune = false;
-		goto prune;
-	}
-#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
-	count = drm_load_edid_firmware(connector);
-	if (count == 0)
-#endif
-	count = (*connector_funcs->get_modes)(connector);
-	if (count == 0 && connector->status == connector_status_connected)
-		count = drm_add_modes_noedid(connector, 1024, 768);
-	if (count == 0)
-		goto prune;
-	drm_mode_connector_list_update(connector);
-	if (maxX && maxY)
-		drm_mode_validate_size(dev, &connector->modes, maxX,
-				       maxY, 0);
-	if (connector->interlace_allowed)
-		mode_flags |= DRM_MODE_FLAG_INTERLACE;
-	if (connector->doublescan_allowed)
-		mode_flags |= DRM_MODE_FLAG_DBLSCAN;
-	if (connector->stereo_allowed)
-		mode_flags |= DRM_MODE_FLAG_3D_MASK;
-	drm_mode_validate_flag(connector, mode_flags);
-	list_for_each_entry(mode, &connector->modes, head) {
-		if (mode->status == MODE_OK)
-			mode->status = connector_funcs->mode_valid(connector,
-								   mode);
-	}
-prune:
-	drm_mode_prune_invalid(dev, &connector->modes, verbose_prune);
-	if (list_empty(&connector->modes))
-		return 0;
-	list_for_each_entry(mode, &connector->modes, head)
-		mode->vrefresh = drm_mode_vrefresh(mode);
-	drm_mode_sort(&connector->modes);
-	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id,
-				drm_get_connector_name(connector));
-	list_for_each_entry(mode, &connector->modes, head) {
-		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
-		drm_mode_debug_printmodeline(mode);
-	}
-	return count;
-}
-EXPORT_SYMBOL(drm_helper_probe_single_connector_modes);
+EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head);
 /**
  * drm_helper_encoder_in_use - check if a given encoder is in use
- * @encoder: encoder to check
+ * @encoder: encoder to check
+ *
- *
+ * Checks whether @encoder is with the current mode setting output configuration
- * LOCKING:
+ * in use by any connector. This doesn't mean that it is actually enabled since
- * Caller must hold mode config lock.
- *
- * Walk @encoders's DRM device's mode_config and see if it's in use.
+ * the DPMS state is tracked separately.
  *
- * RETURNS:
+ * Returns:
- * True if @encoder is part of the mode_config, false otherwise.
+ * True if @encoder is used, false otherwise.
  */
 bool drm_helper_encoder_in_use(struct drm_encoder *encoder)
+{
 /**
  * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config
  * @crtc: CRTC to check
- *
- * LOCKING:
+ *
- * Caller must hold mode config lock.
- *
+ * Checks whether @crtc is with the current mode setting output configuration
+ * in use by any connector. This doesn't mean that it is actually enabled since
- * Walk @crtc's DRM device's mode_config and see if it's in use.
+ * the DPMS state is tracked separately.
  *
- * RETURNS:
+ * Returns:
- * True if @crtc is part of the mode_config, false otherwise.
+ * True if @crtc is used, false otherwise.
  */
 bool drm_helper_crtc_in_use(struct drm_crtc *crtc)
+{
 	struct drm_encoder *encoder;
 	if (encoder->bridge)
 		encoder->bridge->funcs->post_disable(encoder->bridge);
-}
-/**
- * drm_helper_disable_unused_functions - disable unused objects
- * @dev: DRM device
- *
- * LOCKING:
- * Caller must hold mode config lock.
- *
- * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled
- * by calling its dpms function, which should power it off.
+}
  */
-void drm_helper_disable_unused_functions(struct drm_device *dev)
+static void __drm_helper_disable_unused_functions(struct drm_device *dev)
-{
 	struct drm_encoder *encoder;
-	struct drm_connector *connector;
-	struct drm_crtc *crtc;
+	struct drm_encoder *encoder;
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		if (!connector->encoder)
-			continue;
-		if (connector->status == connector_status_disconnected)
+	struct drm_crtc *crtc;
 			connector->encoder = NULL;
 	drm_warn_on_modeset_not_all_locked(dev);
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 		if (!drm_helper_encoder_in_use(encoder)) {
 			drm_encoder_disable(encoder);
-			/* disconnector encoder from any connector */
+			/* disconnect encoder from any connector */
 		if (!crtc->enabled) {
 			if (crtc_funcs->disable)
 				(*crtc_funcs->disable)(crtc);
 			else
 				(*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);
-			crtc->fb = NULL;
+			crtc->primary->fb = NULL;
+		}
+	}
+}
+/**
+ * drm_helper_disable_unused_functions - disable unused objects
+ * @dev: DRM device
+ *
+ * This function walks through the entire mode setting configuration of @dev. It
+ * will remove any crtc links of unused encoders and encoder links of
+ * disconnected connectors. Then it will disable all unused encoders and crtcs
+ * either by calling their disable callback if available or by calling their
+ * dpms callback with DRM_MODE_DPMS_OFF.
+ */
+void drm_helper_disable_unused_functions(struct drm_device *dev)
+{
+	drm_modeset_lock_all(dev);
+	__drm_helper_disable_unused_functions(dev);
+	drm_modeset_unlock_all(dev);
+}
 EXPORT_SYMBOL(drm_helper_disable_unused_functions);
 /*
  * @mode: mode to use
  * @x: horizontal offset into the surface
  * @y: vertical offset into the surface
  * @old_fb: old framebuffer, for cleanup
+ *
- * LOCKING:
- * Caller must hold mode config lock.
- *
  * Try to set @mode on @crtc.  Give @crtc and its associated connectors a chance
  * to fixup or reject the mode prior to trying to set it. This is an internal
  * helper that drivers could e.g. use to update properties that require the
  * entire output pipe to be disabled and re-enabled in a new configuration. For
  * example for changing whether audio is enabled on a hdmi link or for changing
  * panel fitter or dither attributes. It is also called by the
  * drm_crtc_helper_set_config() helper function to drive the mode setting
  * sequence.
+ *
- * RETURNS:
+ * Returns:
- * True if the mode was set successfully, or false otherwise.
+ * True if the mode was set successfully, false otherwise.
  */
 bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
 			      struct drm_display_mode *mode,
 			      int x, int y,
 			      struct drm_framebuffer *old_fb)
 	int saved_x, saved_y;
 	bool saved_enabled;
 	struct drm_encoder *encoder;
 	bool ret = true;
+	drm_warn_on_modeset_not_all_locked(dev);
 	saved_enabled = crtc->enabled;
 	crtc->enabled = drm_helper_crtc_in_use(crtc);
 	if (!crtc->enabled)
 		if (encoder->crtc != crtc)
 			continue;
 		DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
-			encoder->base.id, drm_get_encoder_name(encoder),
+			encoder->base.id, encoder->name,
 			mode->base.id, mode->name);
 		encoder_funcs = encoder->helper_private;
 	return ret;
+}
-EXPORT_SYMBOL(drm_crtc_helper_set_mode);
+EXPORT_SYMBOL(drm_crtc_helper_set_mode);
-static int
+static void
 drm_crtc_helper_disable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 			 */
 			connector->dpms = DRM_MODE_DPMS_OFF;
+		}
+	}
-	drm_helper_disable_unused_functions(dev);
-	return 0;
+	__drm_helper_disable_unused_functions(dev);
+}
 /**
  * drm_crtc_helper_set_config - set a new config from userspace
- * @set: mode set configuration
- *
- * LOCKING:
- * Caller must hold mode config lock.
+ * @set: mode set configuration
  *
  * Setup a new configuration, provided by the upper layers (either an ioctl call
- * from userspace or internally e.g. from the fbdev suppport code) in @set, and
+ * from userspace or internally e.g. from the fbdev support code) in @set, and
  * enable it. This is the main helper functions for drivers that implement
  * kernel mode setting with the crtc helper functions and the assorted
  * ->prepare(), ->modeset() and ->commit() helper callbacks.
  *
- * RETURNS:
+ * Returns:
- * Returns 0 on success, -ERRNO on failure.
+ * Returns 0 on success, negative errno numbers on failure.
  */
 int drm_crtc_helper_set_config(struct drm_mode_set *set)
+{
 		DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
 				set->crtc->base.id, set->fb->base.id,
 		  (int)set->num_connectors, set->x, set->y);
 	} else {
 		DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
-		return drm_crtc_helper_disable(set->crtc);
+		drm_crtc_helper_disable(set->crtc);
+		return 0;
+	}
+	dev = set->crtc->dev;
-	dev = set->crtc->dev;
+	drm_warn_on_modeset_not_all_locked(dev);
 	/*
 	 * Allocate space for the backup of all (non-pointer) encoder and
 	 * connector data.
 	save_set.crtc = set->crtc;
 	save_set.mode = &set->crtc->mode;
 	save_set.x = set->crtc->x;
 	save_set.y = set->crtc->y;
-	save_set.fb = set->crtc->fb;
+	save_set.fb = set->crtc->primary->fb;
 	/* We should be able to check here if the fb has the same properties
 	 * and then just flip_or_move it */
-	if (set->crtc->fb != set->fb) {
+	if (set->crtc->primary->fb != set->fb) {
 		/* If we have no fb then treat it as a full mode set */
-		if (set->crtc->fb == NULL) {
+		if (set->crtc->primary->fb == NULL) {
 			DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
 			mode_changed = true;
 		} else if (set->fb == NULL) {
 			mode_changed = true;
 		} else if (set->fb->pixel_format !=
-			   set->crtc->fb->pixel_format) {
+			   set->crtc->primary->fb->pixel_format) {
 			mode_changed = true;
 		} else
 				/* if we can't get an encoder for a connector
 				   we are setting now - then fail */
 				if (new_encoder == NULL)
 					/* don't break so fail path works correct */
 					fail = 1;
-				break;
 				if (connector->dpms != DRM_MODE_DPMS_ON) {
 					DRM_DEBUG_KMS("connector dpms not on, full mode switch\n");
 					mode_changed = true;
+				}
 				break;
+			}
+		}
 			mode_changed = true;
 			connector->encoder->crtc = new_crtc;
+		}
 		if (new_crtc) {
 			DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
-				connector->base.id, drm_get_connector_name(connector),
+				connector->base.id, connector->name,
 				new_crtc->base.id);
 		} else {
 			DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
-				connector->base.id, drm_get_connector_name(connector));
+				connector->base.id, connector->name);
+		}
+	}
 	/* mode_set_base is not a required function */
 	if (mode_changed) {
 		if (drm_helper_crtc_in_use(set->crtc)) {
 			DRM_DEBUG_KMS("attempting to set mode from"
 					" userspace\n");
 			drm_mode_debug_printmodeline(set->mode);
-			set->crtc->fb = set->fb;
+			set->crtc->primary->fb = set->fb;
 			if (!drm_crtc_helper_set_mode(set->crtc, set->mode,
 						      set->x, set->y,
 						      save_set.fb)) {
 				DRM_ERROR("failed to set mode on [CRTC:%d]\n",
 					  set->crtc->base.id);
-				set->crtc->fb = save_set.fb;
+				set->crtc->primary->fb = save_set.fb;
 				ret = -EINVAL;
 				goto fail;
+			}
 			DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
 			for (i = 0; i < set->num_connectors; i++) {
 				DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
-					      drm_get_connector_name(set->connectors[i]));
+					      set->connectors[i]->name);
 				set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON);
+			}
+		}
-		drm_helper_disable_unused_functions(dev);
+		__drm_helper_disable_unused_functions(dev);
 	} else if (fb_changed) {
 		set->crtc->x = set->x;
 		set->crtc->y = set->y;
-			set->crtc->fb = set->fb;
+		set->crtc->primary->fb = set->fb;
 		ret = crtc_funcs->mode_set_base(set->crtc,
 						set->x, set->y, save_set.fb);
 		if (ret != 0) {
 			set->crtc->x = save_set.x;
 			set->crtc->y = save_set.y;
-			set->crtc->fb = save_set.fb;
+			set->crtc->primary->fb = save_set.fb;
 			goto fail;
+	}
+	}
 	return;
+}
+EXPORT_SYMBOL(drm_helper_connector_dpms);
+/**
+ * drm_helper_mode_fill_fb_struct - fill out framebuffer metadata
+ * @fb: drm_framebuffer object to fill out
+ * @mode_cmd: metadata from the userspace fb creation request
+ *
+ * This helper can be used in a drivers fb_create callback to pre-fill the fb's
-EXPORT_SYMBOL(drm_helper_connector_dpms);
+ * metadata fields.
  */
-int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
+void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
 				   struct drm_mode_fb_cmd2 *mode_cmd)
+{
 		fb->offsets[i] = mode_cmd->offsets[i];
+	}
 	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth,
 				    &fb->bits_per_pixel);
 	fb->pixel_format = mode_cmd->pixel_format;
-	return 0;
+	fb->flags = mode_cmd->flags;
+}
 EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct);
+/**
+ * drm_helper_resume_force_mode - force-restore mode setting configuration
+ * @dev: drm_device which should be restored
+ *
+ * Drivers which use the mode setting helpers can use this function to
+ * force-restore the mode setting configuration e.g. on resume or when something
+ * else might have trampled over the hw state (like some overzealous old BIOSen
+ * tended to do).
+ *
+ * This helper doesn't provide a error return value since restoring the old
+ * config should never fail due to resource allocation issues since the driver
+ * has successfully set the restored configuration already. Hence this should
+ * boil down to the equivalent of a few dpms on calls, which also don't provide
+ * an error code.
+ *
+ * Drivers where simply restoring an old configuration again might fail (e.g.
+ * due to slight differences in allocating shared resources when the
+ * configuration is restored in a different order than when userspace set it up)
+ * need to use their own restore logic.
+ */
-int drm_helper_resume_force_mode(struct drm_device *dev)
+void drm_helper_resume_force_mode(struct drm_device *dev)
+{
 	struct drm_crtc *crtc;
 	struct drm_encoder *encoder;
 	struct drm_crtc_helper_funcs *crtc_funcs;
+	int encoder_dpms;
+	bool ret;
 	int ret, encoder_dpms;
 	drm_modeset_lock_all(dev);
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
        if (!crtc->enabled)
+           continue;
            continue;
 		ret = drm_crtc_helper_set_mode(crtc, &crtc->mode,
-		ret = drm_crtc_helper_set_mode(crtc, &crtc->mode,
+					       crtc->x, crtc->y, crtc->primary->fb);
 					       crtc->x, crtc->y, crtc->fb);
 				if (crtc_funcs->dpms)
 					(*crtc_funcs->dpms) (crtc,
 							     drm_helper_choose_crtc_dpms(crtc));
+			}
+		}
 	/* disable the unused connectors while restoring the modesetting */
-	drm_helper_disable_unused_functions(dev);
+	__drm_helper_disable_unused_functions(dev);
-	return 0;
+	drm_modeset_unlock_all(dev);
+}
 EXPORT_SYMBOL(drm_helper_resume_force_mode);
-void drm_kms_helper_hotplug_event(struct drm_device *dev)
-{
-	/* send a uevent + call fbdev */
-    if (dev->mode_config.funcs->output_poll_changed)
-		dev->mode_config.funcs->output_poll_changed(dev);
-}
-EXPORT_SYMBOL(drm_kms_helper_hotplug_event);
-#define DRM_OUTPUT_POLL_PERIOD (10*HZ)
-static void output_poll_execute(struct work_struct *work)
-{
-	struct delayed_work *delayed_work = to_delayed_work(work);
-	struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
-	struct drm_connector *connector;
-	enum drm_connector_status old_status;
-	bool repoll = false, changed = false;
-	if (!drm_kms_helper_poll)
-		return;
-	mutex_lock(&dev->mode_config.mutex);
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		/* Ignore forced connectors. */
-		if (connector->force)
-			continue;
-		/* Ignore HPD capable connectors and connectors where we don't
-		 * want any hotplug detection at all for polling. */
-		if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD)
-			continue;
-			repoll = true;
-		old_status = connector->status;
-		/* if we are connected and don't want to poll for disconnect
-		   skip it */
-		if (old_status == connector_status_connected &&
-		    !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT))
-			continue;
-		connector->status = connector->funcs->detect(connector, false);
-		if (old_status != connector->status) {
-			const char *old, *new;
-			old = drm_get_connector_status_name(old_status);
-			new = drm_get_connector_status_name(connector->status);
-			DRM_DEBUG_KMS("[CONNECTOR:%d:%s] "
-				      "status updated from %s to %s\n",
-			      connector->base.id,
-			      drm_get_connector_name(connector),
-				      old, new);
-			changed = true;
-	}
-	}
-	mutex_unlock(&dev->mode_config.mutex);
-	if (changed)
-		drm_kms_helper_hotplug_event(dev);
-	if (repoll)
-		schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD);
-}
-void drm_kms_helper_poll_disable(struct drm_device *dev)
-{
-	if (!dev->mode_config.poll_enabled)
-		return;
-//   cancel_delayed_work_sync(&dev->mode_config.output_poll_work);
-}
-EXPORT_SYMBOL(drm_kms_helper_poll_disable);
-void drm_kms_helper_poll_enable(struct drm_device *dev)
-{
-	bool poll = false;
-	struct drm_connector *connector;
-	if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
-		return;
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT |
-					 DRM_CONNECTOR_POLL_DISCONNECT))
-			poll = true;
-	}
-	if (poll)
-		schedule_delayed_work(&dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
-}
-EXPORT_SYMBOL(drm_kms_helper_poll_enable);
-void drm_kms_helper_poll_init(struct drm_device *dev)
-{
-	INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute);
-	dev->mode_config.poll_enabled = true;
-	drm_kms_helper_poll_enable(dev);
-}
-EXPORT_SYMBOL(drm_kms_helper_poll_init);
-void drm_kms_helper_poll_fini(struct drm_device *dev)
-{
-	drm_kms_helper_poll_disable(dev);
-}
-EXPORT_SYMBOL(drm_kms_helper_poll_fini);
-bool drm_helper_hpd_irq_event(struct drm_device *dev)
-{
-	struct drm_connector *connector;
-	enum drm_connector_status old_status;
-	bool changed = false;
-	if (!dev->mode_config.poll_enabled)
-		return false;
-	mutex_lock(&dev->mode_config.mutex);
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		/* Only handle HPD capable connectors. */
-		if (!(connector->polled & DRM_CONNECTOR_POLL_HPD))
-			continue;
-		old_status = connector->status;
-		connector->status = connector->funcs->detect(connector, false);
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
-			      connector->base.id,
-			      drm_get_connector_name(connector),
-			      drm_get_connector_status_name(old_status),
-			      drm_get_connector_status_name(connector->status));
-		if (old_status != connector->status)
-			changed = true;
-	}
-	mutex_unlock(&dev->mode_config.mutex);
-	if (changed)
-		drm_kms_helper_hotplug_event(dev);
-	return changed;
-}
-EXPORT_SYMBOL(drm_helper_hpd_irq_event);

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/drm_crtc_helper.c – Rev 4560 → 5060