Merge tag 'drm-misc-next-2023-01-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.3:

UAPI Changes:

 * connector: Support analog-TV mode property
 * media: Add MEDIA_BUS_FMT_RGB565_1X24_CPADHI,
   MEDIA_BUS_FMT_RGB666_1X18 and MEDIA_BUS_FMT_RGB666_1X24_CPADHI

Cross-subsystem Changes:

 * dma-buf: Documentation fixes
 * i2c: Introduce i2c_client_get_device_id() helper

Core Changes:

 * Improve support for analog TV output
 * bridge: Remove unused drm_bridge_chain functions
 * debugfs: Add per-device helpers and convert various DRM drivers
 * dp-mst: Various fixes
 * fbdev emulation: Always pick 32 bpp as default
 * KUnit: Add tests for managed helpers; Various cleanups
 * panel-orientation: Add quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
 * TTM: Open-code ttm_bo_wait() and remove the helper

Driver Changes:

 * Fix preferred depth and bpp values throughout DRM drivers
 * Remove #CONFIG_PM guards throughout DRM drivers
 * ast: Various fixes
 * bridge: Implement i2c's probe_new in various drivers; Fixes; ite-it6505:
   Locking fixes, Cache EDID data; ite-it66121: Support IT6610 chip,
   Cleanups; lontium-tl9611: Fix HDMI on DragonBoard 845c; parade-ps8640:
   Use atomic bridge functions
 * gud: Convert to DRM shadow-plane helpers; Perform flushing synchronously
   during atomic update
 * ili9486: Support 16-bit pixel data
 * imx: Split off IPUv3 driver; Various fixes
 * mipi-dbi: Convert to DRM shadow-plane helpers plus rsp driver changes;i
   Support separate I/O-voltage supply
 * mxsfb: Depend on ARCH_MXS or ARCH_MXC
 * omapdrm: Various fixes
 * panel: Use ktime_get_boottime() to measure power-down delay in various
   drivers; Fix auto-suspend delay in various drivers; orisetech-ota5601a:
   Add support
 * sprd: Cleanups
 * sun4i: Convert to new TV-mode property
 * tidss: Various fixes
 * v3d: Various fixes
 * vc4: Convert to new TV-mode property; Support Kunit tests; Cleanups;
   dpi: Support RGB565 and RGB666 formats; dsi: Convert DSI driver to
   bridge
 * virtio: Improve tracing
 * vkms: Support small cursors in IGT tests; Various fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y7QIwlfElAYWxRcR@linux-uq9g

1 files changed, 92 insertions, 10 deletions

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index ee445f4605ba..5ea237839439 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -38,6 +38,7 @@
 #include <drm/drm_edid.h>
 #include <drm/drm_file.h>
 #include <drm/drm_gem.h>
+#include <drm/drm_managed.h>
 
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"
@@ -50,9 +51,8 @@
 
 static int drm_name_info(struct seq_file *m, void *data)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct drm_minor *minor = node->minor;
-	struct drm_device *dev = minor->dev;
+	struct drm_debugfs_entry *entry = m->private;
+	struct drm_device *dev = entry->dev;
 	struct drm_master *master;
 
 	mutex_lock(&dev->master_mutex);
@@ -72,8 +72,8 @@ static int drm_name_info(struct seq_file *m, void *data)
 
 static int drm_clients_info(struct seq_file *m, void *data)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct drm_device *dev = node->minor->dev;
+	struct drm_debugfs_entry *entry = m->private;
+	struct drm_device *dev = entry->dev;
 	struct drm_file *priv;
 	kuid_t uid;
 
@@ -124,8 +124,8 @@ static int drm_gem_one_name_info(int id, void *ptr, void *data)
 
 static int drm_gem_name_info(struct seq_file *m, void *data)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct drm_device *dev = node->minor->dev;
+	struct drm_debugfs_entry *entry = m->private;
+	struct drm_device *dev = entry->dev;
 
 	seq_printf(m, "  name     size handles refcount\n");
 
@@ -136,7 +136,7 @@ static int drm_gem_name_info(struct seq_file *m, void *data)
 	return 0;
 }
 
-static const struct drm_info_list drm_debugfs_list[] = {
+static const struct drm_debugfs_info drm_debugfs_list[] = {
 	{"name", drm_name_info, 0},
 	{"clients", drm_clients_info, 0},
 	{"gem_names", drm_gem_name_info, DRIVER_GEM},
@@ -151,6 +151,21 @@ static int drm_debugfs_open(struct inode *inode, struct file *file)
 	return single_open(file, node->info_ent->show, node);
 }
 
+static int drm_debugfs_entry_open(struct inode *inode, struct file *file)
+{
+	struct drm_debugfs_entry *entry = inode->i_private;
+	struct drm_debugfs_info *node = &entry->file;
+
+	return single_open(file, node->show, entry);
+}
+
+static const struct file_operations drm_debugfs_entry_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_debugfs_entry_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
 
 static const struct file_operations drm_debugfs_fops = {
 	.owner = THIS_MODULE,
@@ -207,6 +222,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 		     struct dentry *root)
 {
 	struct drm_device *dev = minor->dev;
+	struct drm_debugfs_entry *entry, *tmp;
 	char name[64];
 
 	INIT_LIST_HEAD(&minor->debugfs_list);
@@ -214,8 +230,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 	sprintf(name, "%d", minor_id);
 	minor->debugfs_root = debugfs_create_dir(name, root);
 
-	drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
-				 minor->debugfs_root, minor);
+	drm_debugfs_add_files(minor->dev, drm_debugfs_list, DRM_DEBUGFS_ENTRIES);
 
 	if (drm_drv_uses_atomic_modeset(dev)) {
 		drm_atomic_debugfs_init(minor);
@@ -230,9 +245,29 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 	if (dev->driver->debugfs_init)
 		dev->driver->debugfs_init(minor);
 
+	list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
+		debugfs_create_file(entry->file.name, S_IFREG | S_IRUGO,
+				    minor->debugfs_root, entry, &drm_debugfs_entry_fops);
+		list_del(&entry->list);
+	}
+
 	return 0;
 }
 
+void drm_debugfs_late_register(struct drm_device *dev)
+{
+	struct drm_minor *minor = dev->primary;
+	struct drm_debugfs_entry *entry, *tmp;
+
+	if (!minor)
+		return;
+
+	list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
+		debugfs_create_file(entry->file.name, S_IFREG | S_IRUGO,
+				    minor->debugfs_root, entry, &drm_debugfs_entry_fops);
+		list_del(&entry->list);
+	}
+}
 
 int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
 			     struct drm_minor *minor)
@@ -281,6 +316,53 @@ void drm_debugfs_cleanup(struct drm_minor *minor)
 	minor->debugfs_root = NULL;
 }
 
+/**
+ * drm_debugfs_add_file - Add a given file to the DRM device debugfs file list
+ * @dev: drm device for the ioctl
+ * @name: debugfs file name
+ * @show: show callback
+ * @data: driver-private data, should not be device-specific
+ *
+ * Add a given file entry to the DRM device debugfs file list to be created on
+ * drm_debugfs_init.
+ */
+void drm_debugfs_add_file(struct drm_device *dev, const char *name,
+			  int (*show)(struct seq_file*, void*), void *data)
+{
+	struct drm_debugfs_entry *entry = drmm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
+
+	if (!entry)
+		return;
+
+	entry->file.name = name;
+	entry->file.show = show;
+	entry->file.data = data;
+	entry->dev = dev;
+
+	mutex_lock(&dev->debugfs_mutex);
+	list_add(&entry->list, &dev->debugfs_list);
+	mutex_unlock(&dev->debugfs_mutex);
+}
+EXPORT_SYMBOL(drm_debugfs_add_file);
+
+/**
+ * drm_debugfs_add_files - Add an array of files to the DRM device debugfs file list
+ * @dev: drm device for the ioctl
+ * @files: The array of files to create
+ * @count: The number of files given
+ *
+ * Add a given set of debugfs files represented by an array of
+ * &struct drm_debugfs_info in the DRM device debugfs file list.
+ */
+void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count)
+{
+	int i;
+
+	for (i = 0; i < count; i++)
+		drm_debugfs_add_file(dev, files[i].name, files[i].show, files[i].data);
+}
+EXPORT_SYMBOL(drm_debugfs_add_files);
+
 static int connector_show(struct seq_file *m, void *data)
 {
 	struct drm_connector *connector = m->private;