On 11/13/25 14:06, José Expósito wrote:
Hey Louis,
On Wed, Oct 29, 2025 at 03:36:38PM +0100, Louis Chauvet wrote:
Create and export an helper to display plane type using the
property string. This could be used to display debug
information in VKMS.
Signed-off-by: Louis Chauvet <[email protected]>
---
drivers/gpu/drm/drm_mode_config.c | 13 +++++++++++++
include/drm/drm_mode_config.h | 3 +++
2 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/drm_mode_config.c
b/drivers/gpu/drm/drm_mode_config.c
index 25f376869b3a..1a1a3f43db4d 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -226,6 +226,19 @@ static const struct drm_prop_enum_list
drm_plane_type_enum_list[] = {
{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
};
+/**
+ * drm_get_plane_type_name - return a string for plane name
+ * @type: plane type to compute name of
Maybe we could document here what happens when the plane type is
not valid.
Returns: The name of the plane type. "(unknown)" if type is not a
known plane type.
Ack, I will integrate it for v3
Other than that:
Reviewed-by: José Expósito <[email protected]>
+ */
+const char *drm_get_plane_type_name(enum drm_plane_type type)
+{
+ if (type < ARRAY_SIZE(drm_plane_type_enum_list))
+ return drm_plane_type_enum_list[type].name;
+ else
+ return "(unknown)";
+}
+EXPORT_SYMBOL(drm_get_plane_type_name);
+
static int drm_mode_create_standard_properties(struct drm_device *dev)
{
struct drm_property *prop;
diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h
index 2e848b816218..89f3dd46178d 100644
--- a/include/drm/drm_mode_config.h
+++ b/include/drm/drm_mode_config.h
@@ -30,6 +30,7 @@
#include <linux/llist.h>
#include <drm/drm_modeset_lock.h>
+#include <drm/drm_plane.h>
struct drm_file;
struct drm_device;
@@ -983,4 +984,6 @@ static inline int drm_mode_config_init(struct drm_device
*dev)
void drm_mode_config_reset(struct drm_device *dev);
void drm_mode_config_cleanup(struct drm_device *dev);
+const char *drm_get_plane_type_name(enum drm_plane_type type);
+
#endif
--
2.51.0
