1 files changed, 151 insertions, 60 deletions

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 430e00b16eec..b01ffa4d6509 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -11,14 +11,18 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/component.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/export.h>
 #include <linux/gfp.h>
 #include <linux/i2c.h>
 #include <linux/kdev_t.h>
+#include <linux/pci.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 
+#include <drm/drm_accel.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_device.h>
 #include <drm/drm_file.h>
@@ -27,6 +31,8 @@
 #include <drm/drm_property.h>
 #include <drm/drm_sysfs.h>
 
+#include <asm/video.h>
+
 #include "drm_internal.h"
 #include "drm_crtc_internal.h"
 
@@ -90,11 +96,39 @@ static void drm_sysfs_acpi_register(void) { }
 static void drm_sysfs_acpi_unregister(void) { }
 #endif
 
-static char *drm_devnode(struct device *dev, umode_t *mode)
+static char *drm_devnode(const struct device *dev, umode_t *mode)
 {
 	return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
 }
 
+static int typec_connector_bind(struct device *dev,
+				struct device *typec_connector, void *data)
+{
+	int ret;
+
+	ret = sysfs_create_link(&dev->kobj, &typec_connector->kobj, "typec_connector");
+	if (ret)
+		return ret;
+
+	ret = sysfs_create_link(&typec_connector->kobj, &dev->kobj, "drm_connector");
+	if (ret)
+		sysfs_remove_link(&dev->kobj, "typec_connector");
+
+	return ret;
+}
+
+static void typec_connector_unbind(struct device *dev,
+				   struct device *typec_connector, void *data)
+{
+	sysfs_remove_link(&typec_connector->kobj, "drm_connector");
+	sysfs_remove_link(&dev->kobj, "typec_connector");
+}
+
+static const struct component_ops typec_connector_ops = {
+	.bind = typec_connector_bind,
+	.unbind = typec_connector_unbind,
+};
+
 static CLASS_ATTR_STRING(version, S_IRUGO, "drm 1.1.0 20060810");
 
 /**
@@ -111,7 +145,7 @@ int drm_sysfs_init(void)
 {
 	int err;
 
-	drm_class = class_create(THIS_MODULE, "drm");
+	drm_class = class_create("drm");
 	if (IS_ERR(drm_class))
 		return PTR_ERR(drm_class);
 
@@ -178,10 +212,9 @@ static ssize_t status_store(struct device *device,
 		ret = -EINVAL;
 
 	if (old_force != connector->force || !connector->force) {
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force updated from %d to %d or reprobing\n",
-			      connector->base.id,
-			      connector->name,
-			      old_force, connector->force);
+		drm_dbg_kms(dev, "[CONNECTOR:%d:%s] force updated from %d to %d or reprobing\n",
+			    connector->base.id, connector->name,
+			    old_force, connector->force);
 
 		connector->funcs->fill_modes(connector,
 					     dev->mode_config.max_width,
@@ -231,34 +264,14 @@ static ssize_t enabled_show(struct device *device,
 }
 
 static ssize_t edid_show(struct file *filp, struct kobject *kobj,
-			 struct bin_attribute *attr, char *buf, loff_t off,
+			 const struct bin_attribute *attr, char *buf, loff_t off,
 			 size_t count)
 {
 	struct device *connector_dev = kobj_to_dev(kobj);
 	struct drm_connector *connector = to_drm_connector(connector_dev);
-	unsigned char *edid;
-	size_t size;
-	ssize_t ret = 0;
-
-	mutex_lock(&connector->dev->mode_config.mutex);
-	if (!connector->edid_blob_ptr)
-		goto unlock;
+	ssize_t ret;
 
-	edid = connector->edid_blob_ptr->data;
-	size = connector->edid_blob_ptr->length;
-	if (!edid)
-		goto unlock;
-
-	if (off >= size)
-		goto unlock;
-
-	if (off + count > size)
-		count = size - off;
-	memcpy(buf, edid + off, count);
-
-	ret = count;
-unlock:
-	mutex_unlock(&connector->dev->mode_config.mutex);
+	ret = drm_edid_connector_property_show(connector, buf, off, count);
 
 	return ret;
 }
@@ -281,27 +294,38 @@ static ssize_t modes_show(struct device *device,
 	return written;
 }
 
+static ssize_t connector_id_show(struct device *device,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct drm_connector *connector = to_drm_connector(device);
+
+	return sysfs_emit(buf, "%d\n", connector->base.id);
+}
+
 static DEVICE_ATTR_RW(status);
 static DEVICE_ATTR_RO(enabled);
 static DEVICE_ATTR_RO(dpms);
 static DEVICE_ATTR_RO(modes);
+static DEVICE_ATTR_RO(connector_id);
 
 static struct attribute *connector_dev_attrs[] = {
 	&dev_attr_status.attr,
 	&dev_attr_enabled.attr,
 	&dev_attr_dpms.attr,
 	&dev_attr_modes.attr,
+	&dev_attr_connector_id.attr,
 	NULL
 };
 
-static struct bin_attribute edid_attr = {
+static const struct bin_attribute edid_attr = {
 	.attr.name = "edid",
 	.attr.mode = 0444,
 	.size = 0,
 	.read = edid_show,
 };
 
-static struct bin_attribute *connector_bin_attrs[] = {
+static const struct bin_attribute *const connector_bin_attrs[] = {
 	&edid_attr,
 	NULL
 };
@@ -341,8 +365,8 @@ int drm_sysfs_connector_add(struct drm_connector *connector)
 	if (r)
 		goto err_free;
 
-	DRM_DEBUG("adding \"%s\" to sysfs\n",
-		  connector->name);
+	drm_dbg_kms(dev, "[CONNECTOR:%d:%s] adding connector to sysfs\n",
+		    connector->base.id, connector->name);
 
 	r = device_add(kdev);
 	if (r) {
@@ -352,9 +376,12 @@ int drm_sysfs_connector_add(struct drm_connector *connector)
 
 	connector->kdev = kdev;
 
-	if (connector->ddc)
-		return sysfs_create_link(&connector->kdev->kobj,
-				 &connector->ddc->dev.kobj, "ddc");
+	if (dev_fwnode(kdev)) {
+		r = component_add(kdev, &typec_connector_ops);
+		if (r)
+			drm_err(dev, "failed to add component to create link to typec connector\n");
+	}
+
 	return 0;
 
 err_free:
@@ -362,16 +389,32 @@ err_free:
 	return r;
 }
 
+int drm_sysfs_connector_add_late(struct drm_connector *connector)
+{
+	if (connector->ddc)
+		return sysfs_create_link(&connector->kdev->kobj,
+					 &connector->ddc->dev.kobj, "ddc");
+
+	return 0;
+}
+
+void drm_sysfs_connector_remove_early(struct drm_connector *connector)
+{
+	if (connector->ddc)
+		sysfs_remove_link(&connector->kdev->kobj, "ddc");
+}
+
 void drm_sysfs_connector_remove(struct drm_connector *connector)
 {
 	if (!connector->kdev)
 		return;
 
-	if (connector->ddc)
-		sysfs_remove_link(&connector->kdev->kobj, "ddc");
+	if (dev_fwnode(connector->kdev))
+		component_del(connector->kdev, &typec_connector_ops);
 
-	DRM_DEBUG("removing \"%s\" from sysfs\n",
-		  connector->name);
+	drm_dbg_kms(connector->dev,
+		    "[CONNECTOR:%d:%s] removing connector from sysfs\n",
+		    connector->base.id, connector->name);
 
 	device_unregister(connector->kdev);
 	connector->kdev = NULL;
@@ -382,7 +425,7 @@ void drm_sysfs_lease_event(struct drm_device *dev)
 	char *event_string = "LEASE=1";
 	char *envp[] = { event_string, NULL };
 
-	DRM_DEBUG("generating lease event\n");
+	drm_dbg_lease(dev, "generating lease event\n");
 
 	kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp);
 }
@@ -403,7 +446,7 @@ void drm_sysfs_hotplug_event(struct drm_device *dev)
 	char *event_string = "HOTPLUG=1";
 	char *envp[] = { event_string, NULL };
 
-	DRM_DEBUG("generating hotplug event\n");
+	drm_dbg_kms(dev, "generating hotplug event\n");
 
 	kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp);
 }
@@ -435,17 +478,17 @@ void drm_sysfs_connector_hotplug_event(struct drm_connector *connector)
 EXPORT_SYMBOL(drm_sysfs_connector_hotplug_event);
 
 /**
- * drm_sysfs_connector_status_event - generate a DRM uevent for connector
- * property status change
- * @connector: connector on which property status changed
- * @property: connector property whose status changed.
+ * drm_sysfs_connector_property_event - generate a DRM uevent for connector
+ * property change
+ * @connector: connector on which property changed
+ * @property: connector property which has changed.
  *
- * Send a uevent for the DRM device specified by @dev.  Currently we
+ * Send a uevent for the specified DRM connector and property.  Currently we
  * set HOTPLUG=1 and connector id along with the attached property id
- * related to the status change.
+ * related to the change.
  */
-void drm_sysfs_connector_status_event(struct drm_connector *connector,
-				      struct drm_property *property)
+void drm_sysfs_connector_property_event(struct drm_connector *connector,
+					struct drm_property *property)
 {
 	struct drm_device *dev = connector->dev;
 	char hotplug_str[] = "HOTPLUG=1", conn_id[21], prop_id[21];
@@ -459,11 +502,51 @@ void drm_sysfs_connector_status_event(struct drm_connector *connector,
 	snprintf(prop_id, ARRAY_SIZE(prop_id),
 		 "PROPERTY=%u", property->base.id);
 
-	DRM_DEBUG("generating connector status event\n");
+	drm_dbg_kms(connector->dev,
+		    "[CONNECTOR:%d:%s] generating connector property event for [PROP:%d:%s]\n",
+		    connector->base.id, connector->name,
+		    property->base.id, property->name);
 
 	kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp);
 }
-EXPORT_SYMBOL(drm_sysfs_connector_status_event);
+EXPORT_SYMBOL(drm_sysfs_connector_property_event);
+
+static ssize_t boot_display_show(struct device *dev, struct device_attribute *attr,
+				 char *buf)
+{
+	return sysfs_emit(buf, "1\n");
+}
+static DEVICE_ATTR_RO(boot_display);
+
+static struct attribute *display_attrs[] = {
+	&dev_attr_boot_display.attr,
+	NULL
+};
+
+static umode_t boot_display_visible(struct kobject *kobj,
+				    struct attribute *a, int n)
+{
+	struct device *dev = kobj_to_dev(kobj)->parent;
+
+	if (dev_is_pci(dev)) {
+		struct pci_dev *pdev = to_pci_dev(dev);
+
+		if (video_is_primary_device(&pdev->dev))
+			return a->mode;
+	}
+
+	return 0;
+}
+
+static const struct attribute_group display_attr_group = {
+	.attrs = display_attrs,
+	.is_visible = boot_display_visible,
+};
+
+static const struct attribute_group *card_dev_groups[] = {
+	&display_attr_group,
+	NULL
+};
 
 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor)
 {
@@ -471,19 +554,27 @@ struct device *drm_sysfs_minor_alloc(struct drm_minor *minor)
 	struct device *kdev;
 	int r;
 
-	if (minor->type == DRM_MINOR_RENDER)
-		minor_str = "renderD%d";
-	else
-		minor_str = "card%d";
-
 	kdev = kzalloc(sizeof(*kdev), GFP_KERNEL);
 	if (!kdev)
 		return ERR_PTR(-ENOMEM);
 
 	device_initialize(kdev);
-	kdev->devt = MKDEV(DRM_MAJOR, minor->index);
-	kdev->class = drm_class;
-	kdev->type = &drm_sysfs_device_minor;
+
+	if (minor->type == DRM_MINOR_ACCEL) {
+		minor_str = "accel%d";
+		accel_set_device_instance_params(kdev, minor->index);
+	} else {
+		if (minor->type == DRM_MINOR_RENDER)
+			minor_str = "renderD%d";
+		else
+			minor_str = "card%d";
+
+		kdev->devt = MKDEV(DRM_MAJOR, minor->index);
+		kdev->class = drm_class;
+		kdev->groups = card_dev_groups;
+		kdev->type = &drm_sysfs_device_minor;
+	}
+
 	kdev->parent = minor->dev->dev;
 	kdev->release = drm_sysfs_release;
 	dev_set_drvdata(kdev, minor);